--- /dev/null
- drm_edid_to_eld(connector, edid);
-
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services_types.h"
+#include "dc.h"
+#include "dc/inc/core_types.h"
+
+#include "vid.h"
+#include "amdgpu.h"
+#include "amdgpu_display.h"
+#include "atom.h"
+#include "amdgpu_dm.h"
+#include "amdgpu_pm.h"
+
+#include "amd_shared.h"
+#include "amdgpu_dm_irq.h"
+#include "dm_helpers.h"
+#include "dm_services_types.h"
+#include "amdgpu_dm_mst_types.h"
+
+#include "ivsrcid/ivsrcid_vislands30.h"
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/types.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_dp_mst_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_edid.h>
+
+#include "modules/inc/mod_freesync.h"
+
+#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
+#include "ivsrcid/irqsrcs_dcn_1_0.h"
+
+#include "raven1/DCN/dcn_1_0_offset.h"
+#include "raven1/DCN/dcn_1_0_sh_mask.h"
+#include "vega10/soc15ip.h"
+
+#include "soc15_common.h"
+#endif
+
+#include "modules/inc/mod_freesync.h"
+
+#include "i2caux_interface.h"
+
+/* basic init/fini API */
+static int amdgpu_dm_init(struct amdgpu_device *adev);
+static void amdgpu_dm_fini(struct amdgpu_device *adev);
+
+/* initializes drm_device display related structures, based on the information
+ * provided by DAL. The drm strcutures are: drm_crtc, drm_connector,
+ * drm_encoder, drm_mode_config
+ *
+ * Returns 0 on success
+ */
+static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev);
+/* removes and deallocates the drm structures, created by the above function */
+static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm);
+
+static void
+amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector);
+
+static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
+ struct amdgpu_plane *aplane,
+ unsigned long possible_crtcs);
+static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
+ struct drm_plane *plane,
+ uint32_t link_index);
+static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
+ struct amdgpu_dm_connector *amdgpu_dm_connector,
+ uint32_t link_index,
+ struct amdgpu_encoder *amdgpu_encoder);
+static int amdgpu_dm_encoder_init(struct drm_device *dev,
+ struct amdgpu_encoder *aencoder,
+ uint32_t link_index);
+
+static int amdgpu_dm_connector_get_modes(struct drm_connector *connector);
+
+static int amdgpu_dm_atomic_commit(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool nonblock);
+
+static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state);
+
+static int amdgpu_dm_atomic_check(struct drm_device *dev,
+ struct drm_atomic_state *state);
+
+
+
+
+static const enum drm_plane_type dm_plane_type_default[AMDGPU_MAX_PLANES] = {
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+};
+
+static const enum drm_plane_type dm_plane_type_carizzo[AMDGPU_MAX_PLANES] = {
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_OVERLAY,/* YUV Capable Underlay */
+};
+
+static const enum drm_plane_type dm_plane_type_stoney[AMDGPU_MAX_PLANES] = {
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_OVERLAY, /* YUV Capable Underlay */
+};
+
+/*
+ * dm_vblank_get_counter
+ *
+ * @brief
+ * Get counter for number of vertical blanks
+ *
+ * @param
+ * struct amdgpu_device *adev - [in] desired amdgpu device
+ * int disp_idx - [in] which CRTC to get the counter from
+ *
+ * @return
+ * Counter for vertical blanks
+ */
+static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc)
+{
+ if (crtc >= adev->mode_info.num_crtc)
+ return 0;
+ else {
+ struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
+ struct dm_crtc_state *acrtc_state = to_dm_crtc_state(
+ acrtc->base.state);
+
+
+ if (acrtc_state->stream == NULL) {
+ DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
+ crtc);
+ return 0;
+ }
+
+ return dc_stream_get_vblank_counter(acrtc_state->stream);
+ }
+}
+
+static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
+ u32 *vbl, u32 *position)
+{
+ uint32_t v_blank_start, v_blank_end, h_position, v_position;
+
+ if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
+ return -EINVAL;
+ else {
+ struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
+ struct dm_crtc_state *acrtc_state = to_dm_crtc_state(
+ acrtc->base.state);
+
+ if (acrtc_state->stream == NULL) {
+ DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
+ crtc);
+ return 0;
+ }
+
+ /*
+ * TODO rework base driver to use values directly.
+ * for now parse it back into reg-format
+ */
+ dc_stream_get_scanoutpos(acrtc_state->stream,
+ &v_blank_start,
+ &v_blank_end,
+ &h_position,
+ &v_position);
+
+ *position = v_position | (h_position << 16);
+ *vbl = v_blank_start | (v_blank_end << 16);
+ }
+
+ return 0;
+}
+
+static bool dm_is_idle(void *handle)
+{
+ /* XXX todo */
+ return true;
+}
+
+static int dm_wait_for_idle(void *handle)
+{
+ /* XXX todo */
+ return 0;
+}
+
+static bool dm_check_soft_reset(void *handle)
+{
+ return false;
+}
+
+static int dm_soft_reset(void *handle)
+{
+ /* XXX todo */
+ return 0;
+}
+
+static struct amdgpu_crtc *
+get_crtc_by_otg_inst(struct amdgpu_device *adev,
+ int otg_inst)
+{
+ struct drm_device *dev = adev->ddev;
+ struct drm_crtc *crtc;
+ struct amdgpu_crtc *amdgpu_crtc;
+
+ /*
+ * following if is check inherited from both functions where this one is
+ * used now. Need to be checked why it could happen.
+ */
+ if (otg_inst == -1) {
+ WARN_ON(1);
+ return adev->mode_info.crtcs[0];
+ }
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ amdgpu_crtc = to_amdgpu_crtc(crtc);
+
+ if (amdgpu_crtc->otg_inst == otg_inst)
+ return amdgpu_crtc;
+ }
+
+ return NULL;
+}
+
+static void dm_pflip_high_irq(void *interrupt_params)
+{
+ struct amdgpu_crtc *amdgpu_crtc;
+ struct common_irq_params *irq_params = interrupt_params;
+ struct amdgpu_device *adev = irq_params->adev;
+ unsigned long flags;
+
+ amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP);
+
+ /* IRQ could occur when in initial stage */
+ /*TODO work and BO cleanup */
+ if (amdgpu_crtc == NULL) {
+ DRM_DEBUG_DRIVER("CRTC is null, returning.\n");
+ return;
+ }
+
+ spin_lock_irqsave(&adev->ddev->event_lock, flags);
+
+ if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){
+ DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n",
+ amdgpu_crtc->pflip_status,
+ AMDGPU_FLIP_SUBMITTED,
+ amdgpu_crtc->crtc_id,
+ amdgpu_crtc);
+ spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
+ return;
+ }
+
+
+ /* wakeup usersapce */
+ if (amdgpu_crtc->event) {
+ /* Update to correct count/ts if racing with vblank irq */
+ drm_crtc_accurate_vblank_count(&amdgpu_crtc->base);
+
+ drm_crtc_send_vblank_event(&amdgpu_crtc->base, amdgpu_crtc->event);
+
+ /* page flip completed. clean up */
+ amdgpu_crtc->event = NULL;
+
+ } else
+ WARN_ON(1);
+
+ amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
+ spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
+
+ DRM_DEBUG_DRIVER("%s - crtc :%d[%p], pflip_stat:AMDGPU_FLIP_NONE\n",
+ __func__, amdgpu_crtc->crtc_id, amdgpu_crtc);
+
+ drm_crtc_vblank_put(&amdgpu_crtc->base);
+}
+
+static void dm_crtc_high_irq(void *interrupt_params)
+{
+ struct common_irq_params *irq_params = interrupt_params;
+ struct amdgpu_device *adev = irq_params->adev;
+ uint8_t crtc_index = 0;
+ struct amdgpu_crtc *acrtc;
+
+ acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
+
+ if (acrtc)
+ crtc_index = acrtc->crtc_id;
+
+ drm_handle_vblank(adev->ddev, crtc_index);
+}
+
+static int dm_set_clockgating_state(void *handle,
+ enum amd_clockgating_state state)
+{
+ return 0;
+}
+
+static int dm_set_powergating_state(void *handle,
+ enum amd_powergating_state state)
+{
+ return 0;
+}
+
+/* Prototypes of private functions */
+static int dm_early_init(void* handle);
+
+static void hotplug_notify_work_func(struct work_struct *work)
+{
+ struct amdgpu_display_manager *dm = container_of(work, struct amdgpu_display_manager, mst_hotplug_work);
+ struct drm_device *dev = dm->ddev;
+
+ drm_kms_helper_hotplug_event(dev);
+}
+
+#if defined(CONFIG_DRM_AMD_DC_FBC)
+#include "dal_asic_id.h"
+/* Allocate memory for FBC compressed data */
+/* TODO: Dynamic allocation */
+#define AMDGPU_FBC_SIZE (3840 * 2160 * 4)
+
+static void amdgpu_dm_initialize_fbc(struct amdgpu_device *adev)
+{
+ int r;
+ struct dm_comressor_info *compressor = &adev->dm.compressor;
+
+ if (!compressor->bo_ptr) {
+ r = amdgpu_bo_create_kernel(adev, AMDGPU_FBC_SIZE, PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_VRAM, &compressor->bo_ptr,
+ &compressor->gpu_addr, &compressor->cpu_addr);
+
+ if (r)
+ DRM_ERROR("DM: Failed to initialize fbc\n");
+ }
+
+}
+#endif
+
+
+/* Init display KMS
+ *
+ * Returns 0 on success
+ */
+static int amdgpu_dm_init(struct amdgpu_device *adev)
+{
+ struct dc_init_data init_data;
+ adev->dm.ddev = adev->ddev;
+ adev->dm.adev = adev;
+
+ /* Zero all the fields */
+ memset(&init_data, 0, sizeof(init_data));
+
+ /* initialize DAL's lock (for SYNC context use) */
+ spin_lock_init(&adev->dm.dal_lock);
+
+ /* initialize DAL's mutex */
+ mutex_init(&adev->dm.dal_mutex);
+
+ if(amdgpu_dm_irq_init(adev)) {
+ DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
+ goto error;
+ }
+
+ init_data.asic_id.chip_family = adev->family;
+
+ init_data.asic_id.pci_revision_id = adev->rev_id;
+ init_data.asic_id.hw_internal_rev = adev->external_rev_id;
+
+ init_data.asic_id.vram_width = adev->mc.vram_width;
+ /* TODO: initialize init_data.asic_id.vram_type here!!!! */
+ init_data.asic_id.atombios_base_address =
+ adev->mode_info.atom_context->bios;
+
+ init_data.driver = adev;
+
+ adev->dm.cgs_device = amdgpu_cgs_create_device(adev);
+
+ if (!adev->dm.cgs_device) {
+ DRM_ERROR("amdgpu: failed to create cgs device.\n");
+ goto error;
+ }
+
+ init_data.cgs_device = adev->dm.cgs_device;
+
+ adev->dm.dal = NULL;
+
+ init_data.dce_environment = DCE_ENV_PRODUCTION_DRV;
+
+ if (amdgpu_dc_log)
+ init_data.log_mask = DC_DEFAULT_LOG_MASK;
+ else
+ init_data.log_mask = DC_MIN_LOG_MASK;
+
+#if defined(CONFIG_DRM_AMD_DC_FBC)
+ if (adev->family == FAMILY_CZ)
+ amdgpu_dm_initialize_fbc(adev);
+ init_data.fbc_gpu_addr = adev->dm.compressor.gpu_addr;
+#endif
+ /* Display Core create. */
+ adev->dm.dc = dc_create(&init_data);
+
+ if (adev->dm.dc) {
+ DRM_INFO("Display Core initialized!\n");
+ } else {
+ DRM_INFO("Display Core failed to initialize!\n");
+ goto error;
+ }
+
+ INIT_WORK(&adev->dm.mst_hotplug_work, hotplug_notify_work_func);
+
+ adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
+ if (!adev->dm.freesync_module) {
+ DRM_ERROR(
+ "amdgpu: failed to initialize freesync_module.\n");
+ } else
+ DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n",
+ adev->dm.freesync_module);
+
+ if (amdgpu_dm_initialize_drm_device(adev)) {
+ DRM_ERROR(
+ "amdgpu: failed to initialize sw for display support.\n");
+ goto error;
+ }
+
+ /* Update the actual used number of crtc */
+ adev->mode_info.num_crtc = adev->dm.display_indexes_num;
+
+ /* TODO: Add_display_info? */
+
+ /* TODO use dynamic cursor width */
+ adev->ddev->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size;
+ adev->ddev->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size;
+
+ if (drm_vblank_init(adev->ddev, adev->dm.display_indexes_num)) {
+ DRM_ERROR(
+ "amdgpu: failed to initialize sw for display support.\n");
+ goto error;
+ }
+
+ DRM_DEBUG_DRIVER("KMS initialized.\n");
+
+ return 0;
+error:
+ amdgpu_dm_fini(adev);
+
+ return -1;
+}
+
+static void amdgpu_dm_fini(struct amdgpu_device *adev)
+{
+ amdgpu_dm_destroy_drm_device(&adev->dm);
+ /*
+ * TODO: pageflip, vlank interrupt
+ *
+ * amdgpu_dm_irq_fini(adev);
+ */
+
+ if (adev->dm.cgs_device) {
+ amdgpu_cgs_destroy_device(adev->dm.cgs_device);
+ adev->dm.cgs_device = NULL;
+ }
+ if (adev->dm.freesync_module) {
+ mod_freesync_destroy(adev->dm.freesync_module);
+ adev->dm.freesync_module = NULL;
+ }
+ /* DC Destroy TODO: Replace destroy DAL */
+ if (adev->dm.dc)
+ dc_destroy(&adev->dm.dc);
+ return;
+}
+
+static int dm_sw_init(void *handle)
+{
+ return 0;
+}
+
+static int dm_sw_fini(void *handle)
+{
+ return 0;
+}
+
+static int detect_mst_link_for_all_connectors(struct drm_device *dev)
+{
+ struct amdgpu_dm_connector *aconnector;
+ struct drm_connector *connector;
+ int ret = 0;
+
+ drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ aconnector = to_amdgpu_dm_connector(connector);
+ if (aconnector->dc_link->type == dc_connection_mst_branch &&
+ aconnector->mst_mgr.aux) {
+ DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n",
+ aconnector, aconnector->base.base.id);
+
+ ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
+ if (ret < 0) {
+ DRM_ERROR("DM_MST: Failed to start MST\n");
+ ((struct dc_link *)aconnector->dc_link)->type = dc_connection_single;
+ return ret;
+ }
+ }
+ }
+
+ drm_modeset_unlock(&dev->mode_config.connection_mutex);
+ return ret;
+}
+
+static int dm_late_init(void *handle)
+{
+ struct drm_device *dev = ((struct amdgpu_device *)handle)->ddev;
+
+ return detect_mst_link_for_all_connectors(dev);
+}
+
+static void s3_handle_mst(struct drm_device *dev, bool suspend)
+{
+ struct amdgpu_dm_connector *aconnector;
+ struct drm_connector *connector;
+
+ drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ aconnector = to_amdgpu_dm_connector(connector);
+ if (aconnector->dc_link->type == dc_connection_mst_branch &&
+ !aconnector->mst_port) {
+
+ if (suspend)
+ drm_dp_mst_topology_mgr_suspend(&aconnector->mst_mgr);
+ else
+ drm_dp_mst_topology_mgr_resume(&aconnector->mst_mgr);
+ }
+ }
+
+ drm_modeset_unlock(&dev->mode_config.connection_mutex);
+}
+
+static int dm_hw_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ /* Create DAL display manager */
+ amdgpu_dm_init(adev);
+ amdgpu_dm_hpd_init(adev);
+
+ return 0;
+}
+
+static int dm_hw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ amdgpu_dm_hpd_fini(adev);
+
+ amdgpu_dm_irq_fini(adev);
+ amdgpu_dm_fini(adev);
+ return 0;
+}
+
+static int dm_suspend(void *handle)
+{
+ struct amdgpu_device *adev = handle;
+ struct amdgpu_display_manager *dm = &adev->dm;
+ int ret = 0;
+
+ s3_handle_mst(adev->ddev, true);
+
+ amdgpu_dm_irq_suspend(adev);
+
+ WARN_ON(adev->dm.cached_state);
+ adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev);
+
+ dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
+
+ return ret;
+}
+
+static struct amdgpu_dm_connector *
+amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
+ struct drm_crtc *crtc)
+{
+ uint32_t i;
+ struct drm_connector_state *new_con_state;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc_from_state;
+
+ for_each_new_connector_in_state(state, connector, new_con_state, i) {
+ crtc_from_state = new_con_state->crtc;
+
+ if (crtc_from_state == crtc)
+ return to_amdgpu_dm_connector(connector);
+ }
+
+ return NULL;
+}
+
+static int dm_resume(void *handle)
+{
+ struct amdgpu_device *adev = handle;
+ struct amdgpu_display_manager *dm = &adev->dm;
+
+ /* power on hardware */
+ dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
+
+ return 0;
+}
+
+int amdgpu_dm_display_resume(struct amdgpu_device *adev)
+{
+ struct drm_device *ddev = adev->ddev;
+ struct amdgpu_display_manager *dm = &adev->dm;
+ struct amdgpu_dm_connector *aconnector;
+ struct drm_connector *connector;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *new_crtc_state;
+ struct dm_crtc_state *dm_new_crtc_state;
+ struct drm_plane *plane;
+ struct drm_plane_state *new_plane_state;
+ struct dm_plane_state *dm_new_plane_state;
+
+ int ret = 0;
+ int i;
+
+ /* program HPD filter */
+ dc_resume(dm->dc);
+
+ /* On resume we need to rewrite the MSTM control bits to enamble MST*/
+ s3_handle_mst(ddev, false);
+
+ /*
+ * early enable HPD Rx IRQ, should be done before set mode as short
+ * pulse interrupts are used for MST
+ */
+ amdgpu_dm_irq_resume_early(adev);
+
+ /* Do detection*/
+ list_for_each_entry(connector,
+ &ddev->mode_config.connector_list, head) {
+ aconnector = to_amdgpu_dm_connector(connector);
+
+ /*
+ * this is the case when traversing through already created
+ * MST connectors, should be skipped
+ */
+ if (aconnector->mst_port)
+ continue;
+
+ mutex_lock(&aconnector->hpd_lock);
+ dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
+
+ if (aconnector->fake_enable && aconnector->dc_link->local_sink)
+ aconnector->fake_enable = false;
+
+ aconnector->dc_sink = NULL;
+ amdgpu_dm_update_connector_after_detect(aconnector);
+ mutex_unlock(&aconnector->hpd_lock);
+ }
+
+ /* Force mode set in atomic comit */
+ for_each_new_crtc_in_state(adev->dm.cached_state, crtc, new_crtc_state, i)
+ new_crtc_state->active_changed = true;
+
+ /*
+ * atomic_check is expected to create the dc states. We need to release
+ * them here, since they were duplicated as part of the suspend
+ * procedure.
+ */
+ for_each_new_crtc_in_state(adev->dm.cached_state, crtc, new_crtc_state, i) {
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+ if (dm_new_crtc_state->stream) {
+ WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1);
+ dc_stream_release(dm_new_crtc_state->stream);
+ dm_new_crtc_state->stream = NULL;
+ }
+ }
+
+ for_each_new_plane_in_state(adev->dm.cached_state, plane, new_plane_state, i) {
+ dm_new_plane_state = to_dm_plane_state(new_plane_state);
+ if (dm_new_plane_state->dc_state) {
+ WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1);
+ dc_plane_state_release(dm_new_plane_state->dc_state);
+ dm_new_plane_state->dc_state = NULL;
+ }
+ }
+
+ ret = drm_atomic_helper_resume(ddev, adev->dm.cached_state);
+
+ adev->dm.cached_state = NULL;
+
+ amdgpu_dm_irq_resume_late(adev);
+
+ return ret;
+}
+
+static const struct amd_ip_funcs amdgpu_dm_funcs = {
+ .name = "dm",
+ .early_init = dm_early_init,
+ .late_init = dm_late_init,
+ .sw_init = dm_sw_init,
+ .sw_fini = dm_sw_fini,
+ .hw_init = dm_hw_init,
+ .hw_fini = dm_hw_fini,
+ .suspend = dm_suspend,
+ .resume = dm_resume,
+ .is_idle = dm_is_idle,
+ .wait_for_idle = dm_wait_for_idle,
+ .check_soft_reset = dm_check_soft_reset,
+ .soft_reset = dm_soft_reset,
+ .set_clockgating_state = dm_set_clockgating_state,
+ .set_powergating_state = dm_set_powergating_state,
+};
+
+const struct amdgpu_ip_block_version dm_ip_block =
+{
+ .type = AMD_IP_BLOCK_TYPE_DCE,
+ .major = 1,
+ .minor = 0,
+ .rev = 0,
+ .funcs = &amdgpu_dm_funcs,
+};
+
+
+static struct drm_atomic_state *
+dm_atomic_state_alloc(struct drm_device *dev)
+{
+ struct dm_atomic_state *state = kzalloc(sizeof(*state), GFP_KERNEL);
+
+ if (!state)
+ return NULL;
+
+ if (drm_atomic_state_init(dev, &state->base) < 0)
+ goto fail;
+
+ return &state->base;
+
+fail:
+ kfree(state);
+ return NULL;
+}
+
+static void
+dm_atomic_state_clear(struct drm_atomic_state *state)
+{
+ struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+
+ if (dm_state->context) {
+ dc_release_state(dm_state->context);
+ dm_state->context = NULL;
+ }
+
+ drm_atomic_state_default_clear(state);
+}
+
+static void
+dm_atomic_state_alloc_free(struct drm_atomic_state *state)
+{
+ struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+ drm_atomic_state_default_release(state);
+ kfree(dm_state);
+}
+
+static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = {
+ .fb_create = amdgpu_user_framebuffer_create,
+ .output_poll_changed = amdgpu_output_poll_changed,
+ .atomic_check = amdgpu_dm_atomic_check,
+ .atomic_commit = amdgpu_dm_atomic_commit,
+ .atomic_state_alloc = dm_atomic_state_alloc,
+ .atomic_state_clear = dm_atomic_state_clear,
+ .atomic_state_free = dm_atomic_state_alloc_free
+};
+
+static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = {
+ .atomic_commit_tail = amdgpu_dm_atomic_commit_tail
+};
+
+static void
+amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector)
+{
+ struct drm_connector *connector = &aconnector->base;
+ struct drm_device *dev = connector->dev;
+ struct dc_sink *sink;
+
+ /* MST handled by drm_mst framework */
+ if (aconnector->mst_mgr.mst_state == true)
+ return;
+
+
+ sink = aconnector->dc_link->local_sink;
+
+ /* Edid mgmt connector gets first update only in mode_valid hook and then
+ * the connector sink is set to either fake or physical sink depends on link status.
+ * don't do it here if u are during boot
+ */
+ if (aconnector->base.force != DRM_FORCE_UNSPECIFIED
+ && aconnector->dc_em_sink) {
+
+ /* For S3 resume with headless use eml_sink to fake stream
+ * because on resume connecotr->sink is set ti NULL
+ */
+ mutex_lock(&dev->mode_config.mutex);
+
+ if (sink) {
+ if (aconnector->dc_sink) {
+ amdgpu_dm_remove_sink_from_freesync_module(
+ connector);
+ /* retain and release bellow are used for
+ * bump up refcount for sink because the link don't point
+ * to it anymore after disconnect so on next crtc to connector
+ * reshuffle by UMD we will get into unwanted dc_sink release
+ */
+ if (aconnector->dc_sink != aconnector->dc_em_sink)
+ dc_sink_release(aconnector->dc_sink);
+ }
+ aconnector->dc_sink = sink;
+ amdgpu_dm_add_sink_to_freesync_module(
+ connector, aconnector->edid);
+ } else {
+ amdgpu_dm_remove_sink_from_freesync_module(connector);
+ if (!aconnector->dc_sink)
+ aconnector->dc_sink = aconnector->dc_em_sink;
+ else if (aconnector->dc_sink != aconnector->dc_em_sink)
+ dc_sink_retain(aconnector->dc_sink);
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+ return;
+ }
+
+ /*
+ * TODO: temporary guard to look for proper fix
+ * if this sink is MST sink, we should not do anything
+ */
+ if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
+ return;
+
+ if (aconnector->dc_sink == sink) {
+ /* We got a DP short pulse (Link Loss, DP CTS, etc...).
+ * Do nothing!! */
+ DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n",
+ aconnector->connector_id);
+ return;
+ }
+
+ DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n",
+ aconnector->connector_id, aconnector->dc_sink, sink);
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ /* 1. Update status of the drm connector
+ * 2. Send an event and let userspace tell us what to do */
+ if (sink) {
+ /* TODO: check if we still need the S3 mode update workaround.
+ * If yes, put it here. */
+ if (aconnector->dc_sink)
+ amdgpu_dm_remove_sink_from_freesync_module(
+ connector);
+
+ aconnector->dc_sink = sink;
+ if (sink->dc_edid.length == 0) {
+ aconnector->edid = NULL;
+ } else {
+ aconnector->edid =
+ (struct edid *) sink->dc_edid.raw_edid;
+
+
+ drm_mode_connector_update_edid_property(connector,
+ aconnector->edid);
+ }
+ amdgpu_dm_add_sink_to_freesync_module(connector, aconnector->edid);
+
+ } else {
+ amdgpu_dm_remove_sink_from_freesync_module(connector);
+ drm_mode_connector_update_edid_property(connector, NULL);
+ aconnector->num_modes = 0;
+ aconnector->dc_sink = NULL;
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+static void handle_hpd_irq(void *param)
+{
+ struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
+ struct drm_connector *connector = &aconnector->base;
+ struct drm_device *dev = connector->dev;
+
+ /* In case of failure or MST no need to update connector status or notify the OS
+ * since (for MST case) MST does this in it's own context.
+ */
+ mutex_lock(&aconnector->hpd_lock);
+
+ if (aconnector->fake_enable)
+ aconnector->fake_enable = false;
+
+ if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
+ amdgpu_dm_update_connector_after_detect(aconnector);
+
+
+ drm_modeset_lock_all(dev);
+ dm_restore_drm_connector_state(dev, connector);
+ drm_modeset_unlock_all(dev);
+
+ if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
+ drm_kms_helper_hotplug_event(dev);
+ }
+ mutex_unlock(&aconnector->hpd_lock);
+
+}
+
+static void dm_handle_hpd_rx_irq(struct amdgpu_dm_connector *aconnector)
+{
+ uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
+ uint8_t dret;
+ bool new_irq_handled = false;
+ int dpcd_addr;
+ int dpcd_bytes_to_read;
+
+ const int max_process_count = 30;
+ int process_count = 0;
+
+ const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
+
+ if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
+ dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
+ /* DPCD 0x200 - 0x201 for downstream IRQ */
+ dpcd_addr = DP_SINK_COUNT;
+ } else {
+ dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
+ /* DPCD 0x2002 - 0x2005 for downstream IRQ */
+ dpcd_addr = DP_SINK_COUNT_ESI;
+ }
+
+ dret = drm_dp_dpcd_read(
+ &aconnector->dm_dp_aux.aux,
+ dpcd_addr,
+ esi,
+ dpcd_bytes_to_read);
+
+ while (dret == dpcd_bytes_to_read &&
+ process_count < max_process_count) {
+ uint8_t retry;
+ dret = 0;
+
+ process_count++;
+
+ DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
+ /* handle HPD short pulse irq */
+ if (aconnector->mst_mgr.mst_state)
+ drm_dp_mst_hpd_irq(
+ &aconnector->mst_mgr,
+ esi,
+ &new_irq_handled);
+
+ if (new_irq_handled) {
+ /* ACK at DPCD to notify down stream */
+ const int ack_dpcd_bytes_to_write =
+ dpcd_bytes_to_read - 1;
+
+ for (retry = 0; retry < 3; retry++) {
+ uint8_t wret;
+
+ wret = drm_dp_dpcd_write(
+ &aconnector->dm_dp_aux.aux,
+ dpcd_addr + 1,
+ &esi[1],
+ ack_dpcd_bytes_to_write);
+ if (wret == ack_dpcd_bytes_to_write)
+ break;
+ }
+
+ /* check if there is new irq to be handle */
+ dret = drm_dp_dpcd_read(
+ &aconnector->dm_dp_aux.aux,
+ dpcd_addr,
+ esi,
+ dpcd_bytes_to_read);
+
+ new_irq_handled = false;
+ } else {
+ break;
+ }
+ }
+
+ if (process_count == max_process_count)
+ DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
+}
+
+static void handle_hpd_rx_irq(void *param)
+{
+ struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
+ struct drm_connector *connector = &aconnector->base;
+ struct drm_device *dev = connector->dev;
+ struct dc_link *dc_link = aconnector->dc_link;
+ bool is_mst_root_connector = aconnector->mst_mgr.mst_state;
+
+ /* TODO:Temporary add mutex to protect hpd interrupt not have a gpio
+ * conflict, after implement i2c helper, this mutex should be
+ * retired.
+ */
+ if (dc_link->type != dc_connection_mst_branch)
+ mutex_lock(&aconnector->hpd_lock);
+
+ if (dc_link_handle_hpd_rx_irq(dc_link, NULL) &&
+ !is_mst_root_connector) {
+ /* Downstream Port status changed. */
+ if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) {
+ amdgpu_dm_update_connector_after_detect(aconnector);
+
+
+ drm_modeset_lock_all(dev);
+ dm_restore_drm_connector_state(dev, connector);
+ drm_modeset_unlock_all(dev);
+
+ drm_kms_helper_hotplug_event(dev);
+ }
+ }
+ if ((dc_link->cur_link_settings.lane_count != LANE_COUNT_UNKNOWN) ||
+ (dc_link->type == dc_connection_mst_branch))
+ dm_handle_hpd_rx_irq(aconnector);
+
+ if (dc_link->type != dc_connection_mst_branch)
+ mutex_unlock(&aconnector->hpd_lock);
+}
+
+static void register_hpd_handlers(struct amdgpu_device *adev)
+{
+ struct drm_device *dev = adev->ddev;
+ struct drm_connector *connector;
+ struct amdgpu_dm_connector *aconnector;
+ const struct dc_link *dc_link;
+ struct dc_interrupt_params int_params = {0};
+
+ int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+ int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+ list_for_each_entry(connector,
+ &dev->mode_config.connector_list, head) {
+
+ aconnector = to_amdgpu_dm_connector(connector);
+ dc_link = aconnector->dc_link;
+
+ if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) {
+ int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
+ int_params.irq_source = dc_link->irq_source_hpd;
+
+ amdgpu_dm_irq_register_interrupt(adev, &int_params,
+ handle_hpd_irq,
+ (void *) aconnector);
+ }
+
+ if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) {
+
+ /* Also register for DP short pulse (hpd_rx). */
+ int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
+ int_params.irq_source = dc_link->irq_source_hpd_rx;
+
+ amdgpu_dm_irq_register_interrupt(adev, &int_params,
+ handle_hpd_rx_irq,
+ (void *) aconnector);
+ }
+ }
+}
+
+/* Register IRQ sources and initialize IRQ callbacks */
+static int dce110_register_irq_handlers(struct amdgpu_device *adev)
+{
+ struct dc *dc = adev->dm.dc;
+ struct common_irq_params *c_irq_params;
+ struct dc_interrupt_params int_params = {0};
+ int r;
+ int i;
+ unsigned client_id = AMDGPU_IH_CLIENTID_LEGACY;
+
+ if (adev->asic_type == CHIP_VEGA10 ||
+ adev->asic_type == CHIP_RAVEN)
+ client_id = AMDGPU_IH_CLIENTID_DCE;
+
+ int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+ int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+ /* Actions of amdgpu_irq_add_id():
+ * 1. Register a set() function with base driver.
+ * Base driver will call set() function to enable/disable an
+ * interrupt in DC hardware.
+ * 2. Register amdgpu_dm_irq_handler().
+ * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
+ * coming from DC hardware.
+ * amdgpu_dm_irq_handler() will re-direct the interrupt to DC
+ * for acknowledging and handling. */
+
+ /* Use VBLANK interrupt */
+ for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) {
+ r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq);
+ if (r) {
+ DRM_ERROR("Failed to add crtc irq id!\n");
+ return r;
+ }
+
+ int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+ int_params.irq_source =
+ dc_interrupt_to_irq_source(dc, i, 0);
+
+ c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
+
+ c_irq_params->adev = adev;
+ c_irq_params->irq_src = int_params.irq_source;
+
+ amdgpu_dm_irq_register_interrupt(adev, &int_params,
+ dm_crtc_high_irq, c_irq_params);
+ }
+
+ /* Use GRPH_PFLIP interrupt */
+ for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
+ i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
+ r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
+ if (r) {
+ DRM_ERROR("Failed to add page flip irq id!\n");
+ return r;
+ }
+
+ int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+ int_params.irq_source =
+ dc_interrupt_to_irq_source(dc, i, 0);
+
+ c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
+
+ c_irq_params->adev = adev;
+ c_irq_params->irq_src = int_params.irq_source;
+
+ amdgpu_dm_irq_register_interrupt(adev, &int_params,
+ dm_pflip_high_irq, c_irq_params);
+
+ }
+
+ /* HPD */
+ r = amdgpu_irq_add_id(adev, client_id,
+ VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
+ if (r) {
+ DRM_ERROR("Failed to add hpd irq id!\n");
+ return r;
+ }
+
+ register_hpd_handlers(adev);
+
+ return 0;
+}
+
+#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
+/* Register IRQ sources and initialize IRQ callbacks */
+static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
+{
+ struct dc *dc = adev->dm.dc;
+ struct common_irq_params *c_irq_params;
+ struct dc_interrupt_params int_params = {0};
+ int r;
+ int i;
+
+ int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
+ int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
+
+ /* Actions of amdgpu_irq_add_id():
+ * 1. Register a set() function with base driver.
+ * Base driver will call set() function to enable/disable an
+ * interrupt in DC hardware.
+ * 2. Register amdgpu_dm_irq_handler().
+ * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
+ * coming from DC hardware.
+ * amdgpu_dm_irq_handler() will re-direct the interrupt to DC
+ * for acknowledging and handling.
+ * */
+
+ /* Use VSTARTUP interrupt */
+ for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP;
+ i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1;
+ i++) {
+ r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_DCE, i, &adev->crtc_irq);
+
+ if (r) {
+ DRM_ERROR("Failed to add crtc irq id!\n");
+ return r;
+ }
+
+ int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+ int_params.irq_source =
+ dc_interrupt_to_irq_source(dc, i, 0);
+
+ c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
+
+ c_irq_params->adev = adev;
+ c_irq_params->irq_src = int_params.irq_source;
+
+ amdgpu_dm_irq_register_interrupt(adev, &int_params,
+ dm_crtc_high_irq, c_irq_params);
+ }
+
+ /* Use GRPH_PFLIP interrupt */
+ for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
+ i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1;
+ i++) {
+ r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_DCE, i, &adev->pageflip_irq);
+ if (r) {
+ DRM_ERROR("Failed to add page flip irq id!\n");
+ return r;
+ }
+
+ int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
+ int_params.irq_source =
+ dc_interrupt_to_irq_source(dc, i, 0);
+
+ c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
+
+ c_irq_params->adev = adev;
+ c_irq_params->irq_src = int_params.irq_source;
+
+ amdgpu_dm_irq_register_interrupt(adev, &int_params,
+ dm_pflip_high_irq, c_irq_params);
+
+ }
+
+ /* HPD */
+ r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT,
+ &adev->hpd_irq);
+ if (r) {
+ DRM_ERROR("Failed to add hpd irq id!\n");
+ return r;
+ }
+
+ register_hpd_handlers(adev);
+
+ return 0;
+}
+#endif
+
+static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev)
+{
+ int r;
+
+ adev->mode_info.mode_config_initialized = true;
+
+ adev->ddev->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs;
+ adev->ddev->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs;
+
+ adev->ddev->mode_config.max_width = 16384;
+ adev->ddev->mode_config.max_height = 16384;
+
+ adev->ddev->mode_config.preferred_depth = 24;
+ adev->ddev->mode_config.prefer_shadow = 1;
+ /* indicate support of immediate flip */
+ adev->ddev->mode_config.async_page_flip = true;
+
+ adev->ddev->mode_config.fb_base = adev->mc.aper_base;
+
+ r = amdgpu_modeset_create_props(adev);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
+ defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
+
+static int amdgpu_dm_backlight_update_status(struct backlight_device *bd)
+{
+ struct amdgpu_display_manager *dm = bl_get_data(bd);
+
+ if (dc_link_set_backlight_level(dm->backlight_link,
+ bd->props.brightness, 0, 0))
+ return 0;
+ else
+ return 1;
+}
+
+static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
+{
+ return bd->props.brightness;
+}
+
+static const struct backlight_ops amdgpu_dm_backlight_ops = {
+ .get_brightness = amdgpu_dm_backlight_get_brightness,
+ .update_status = amdgpu_dm_backlight_update_status,
+};
+
+static void
+amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
+{
+ char bl_name[16];
+ struct backlight_properties props = { 0 };
+
+ props.max_brightness = AMDGPU_MAX_BL_LEVEL;
+ props.type = BACKLIGHT_RAW;
+
+ snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d",
+ dm->adev->ddev->primary->index);
+
+ dm->backlight_dev = backlight_device_register(bl_name,
+ dm->adev->ddev->dev,
+ dm,
+ &amdgpu_dm_backlight_ops,
+ &props);
+
+ if (IS_ERR(dm->backlight_dev))
+ DRM_ERROR("DM: Backlight registration failed!\n");
+ else
+ DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);
+}
+
+#endif
+
+/* In this architecture, the association
+ * connector -> encoder -> crtc
+ * id not really requried. The crtc and connector will hold the
+ * display_index as an abstraction to use with DAL component
+ *
+ * Returns 0 on success
+ */
+static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
+{
+ struct amdgpu_display_manager *dm = &adev->dm;
+ uint32_t i;
+ struct amdgpu_dm_connector *aconnector = NULL;
+ struct amdgpu_encoder *aencoder = NULL;
+ struct amdgpu_mode_info *mode_info = &adev->mode_info;
+ uint32_t link_cnt;
+ unsigned long possible_crtcs;
+
+ link_cnt = dm->dc->caps.max_links;
+ if (amdgpu_dm_mode_config_init(dm->adev)) {
+ DRM_ERROR("DM: Failed to initialize mode config\n");
+ return -1;
+ }
+
+ for (i = 0; i < dm->dc->caps.max_planes; i++) {
+ struct amdgpu_plane *plane;
+
+ plane = kzalloc(sizeof(struct amdgpu_plane), GFP_KERNEL);
+ mode_info->planes[i] = plane;
+
+ if (!plane) {
+ DRM_ERROR("KMS: Failed to allocate plane\n");
+ goto fail;
+ }
+ plane->base.type = mode_info->plane_type[i];
+
+ /*
+ * HACK: IGT tests expect that each plane can only have one
+ * one possible CRTC. For now, set one CRTC for each
+ * plane that is not an underlay, but still allow multiple
+ * CRTCs for underlay planes.
+ */
+ possible_crtcs = 1 << i;
+ if (i >= dm->dc->caps.max_streams)
+ possible_crtcs = 0xff;
+
+ if (amdgpu_dm_plane_init(dm, mode_info->planes[i], possible_crtcs)) {
+ DRM_ERROR("KMS: Failed to initialize plane\n");
+ goto fail;
+ }
+ }
+
+ for (i = 0; i < dm->dc->caps.max_streams; i++)
+ if (amdgpu_dm_crtc_init(dm, &mode_info->planes[i]->base, i)) {
+ DRM_ERROR("KMS: Failed to initialize crtc\n");
+ goto fail;
+ }
+
+ dm->display_indexes_num = dm->dc->caps.max_streams;
+
+ /* loops over all connectors on the board */
+ for (i = 0; i < link_cnt; i++) {
+
+ if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
+ DRM_ERROR(
+ "KMS: Cannot support more than %d display indexes\n",
+ AMDGPU_DM_MAX_DISPLAY_INDEX);
+ continue;
+ }
+
+ aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
+ if (!aconnector)
+ goto fail;
+
+ aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL);
+ if (!aencoder)
+ goto fail;
+
+ if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) {
+ DRM_ERROR("KMS: Failed to initialize encoder\n");
+ goto fail;
+ }
+
+ if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) {
+ DRM_ERROR("KMS: Failed to initialize connector\n");
+ goto fail;
+ }
+
+ if (dc_link_detect(dc_get_link_at_index(dm->dc, i),
+ DETECT_REASON_BOOT))
+ amdgpu_dm_update_connector_after_detect(aconnector);
+ }
+
+ /* Software is initialized. Now we can register interrupt handlers. */
+ switch (adev->asic_type) {
+ case CHIP_BONAIRE:
+ case CHIP_HAWAII:
+ case CHIP_KAVERI:
+ case CHIP_KABINI:
+ case CHIP_MULLINS:
+ case CHIP_TONGA:
+ case CHIP_FIJI:
+ case CHIP_CARRIZO:
+ case CHIP_STONEY:
+ case CHIP_POLARIS11:
+ case CHIP_POLARIS10:
+ case CHIP_POLARIS12:
+ case CHIP_VEGA10:
+ if (dce110_register_irq_handlers(dm->adev)) {
+ DRM_ERROR("DM: Failed to initialize IRQ\n");
+ goto fail;
+ }
+ break;
+#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
+ case CHIP_RAVEN:
+ if (dcn10_register_irq_handlers(dm->adev)) {
+ DRM_ERROR("DM: Failed to initialize IRQ\n");
+ goto fail;
+ }
+ /*
+ * Temporary disable until pplib/smu interaction is implemented
+ */
+ dm->dc->debug.disable_stutter = true;
+ break;
+#endif
+ default:
+ DRM_ERROR("Usupported ASIC type: 0x%X\n", adev->asic_type);
+ goto fail;
+ }
+
+ return 0;
+fail:
+ kfree(aencoder);
+ kfree(aconnector);
+ for (i = 0; i < dm->dc->caps.max_planes; i++)
+ kfree(mode_info->planes[i]);
+ return -1;
+}
+
+static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)
+{
+ drm_mode_config_cleanup(dm->ddev);
+ return;
+}
+
+/******************************************************************************
+ * amdgpu_display_funcs functions
+ *****************************************************************************/
+
+/**
+ * dm_bandwidth_update - program display watermarks
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Calculate and program the display watermarks and line buffer allocation.
+ */
+static void dm_bandwidth_update(struct amdgpu_device *adev)
+{
+ /* TODO: implement later */
+}
+
+static void dm_set_backlight_level(struct amdgpu_encoder *amdgpu_encoder,
+ u8 level)
+{
+ /* TODO: translate amdgpu_encoder to display_index and call DAL */
+}
+
+static u8 dm_get_backlight_level(struct amdgpu_encoder *amdgpu_encoder)
+{
+ /* TODO: translate amdgpu_encoder to display_index and call DAL */
+ return 0;
+}
+
+static int amdgpu_notify_freesync(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ struct mod_freesync_params freesync_params;
+ uint8_t num_streams;
+ uint8_t i;
+
+ struct amdgpu_device *adev = dev->dev_private;
+ int r = 0;
+
+ /* Get freesync enable flag from DRM */
+
+ num_streams = dc_get_current_stream_count(adev->dm.dc);
+
+ for (i = 0; i < num_streams; i++) {
+ struct dc_stream_state *stream;
+ stream = dc_get_stream_at_index(adev->dm.dc, i);
+
+ mod_freesync_update_state(adev->dm.freesync_module,
+ &stream, 1, &freesync_params);
+ }
+
+ return r;
+}
+
+static const struct amdgpu_display_funcs dm_display_funcs = {
+ .bandwidth_update = dm_bandwidth_update, /* called unconditionally */
+ .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */
+ .vblank_wait = NULL,
+ .backlight_set_level =
+ dm_set_backlight_level,/* called unconditionally */
+ .backlight_get_level =
+ dm_get_backlight_level,/* called unconditionally */
+ .hpd_sense = NULL,/* called unconditionally */
+ .hpd_set_polarity = NULL, /* called unconditionally */
+ .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */
+ .page_flip_get_scanoutpos =
+ dm_crtc_get_scanoutpos,/* called unconditionally */
+ .add_encoder = NULL, /* VBIOS parsing. DAL does it. */
+ .add_connector = NULL, /* VBIOS parsing. DAL does it. */
+ .notify_freesync = amdgpu_notify_freesync,
+
+};
+
+#if defined(CONFIG_DEBUG_KERNEL_DC)
+
+static ssize_t s3_debug_store(struct device *device,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int ret;
+ int s3_state;
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct amdgpu_device *adev = drm_dev->dev_private;
+
+ ret = kstrtoint(buf, 0, &s3_state);
+
+ if (ret == 0) {
+ if (s3_state) {
+ dm_resume(adev);
+ amdgpu_dm_display_resume(adev);
+ drm_kms_helper_hotplug_event(adev->ddev);
+ } else
+ dm_suspend(adev);
+ }
+
+ return ret == 0 ? count : 0;
+}
+
+DEVICE_ATTR_WO(s3_debug);
+
+#endif
+
+static int dm_early_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ adev->ddev->driver->driver_features |= DRIVER_ATOMIC;
+ amdgpu_dm_set_irq_funcs(adev);
+
+ switch (adev->asic_type) {
+ case CHIP_BONAIRE:
+ case CHIP_HAWAII:
+ adev->mode_info.num_crtc = 6;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 6;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+ case CHIP_KAVERI:
+ adev->mode_info.num_crtc = 4;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 7;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+ case CHIP_KABINI:
+ case CHIP_MULLINS:
+ adev->mode_info.num_crtc = 2;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 6;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+ case CHIP_FIJI:
+ case CHIP_TONGA:
+ adev->mode_info.num_crtc = 6;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 7;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+ case CHIP_CARRIZO:
+ adev->mode_info.num_crtc = 3;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 9;
+ adev->mode_info.plane_type = dm_plane_type_carizzo;
+ break;
+ case CHIP_STONEY:
+ adev->mode_info.num_crtc = 2;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 9;
+ adev->mode_info.plane_type = dm_plane_type_stoney;
+ break;
+ case CHIP_POLARIS11:
+ case CHIP_POLARIS12:
+ adev->mode_info.num_crtc = 5;
+ adev->mode_info.num_hpd = 5;
+ adev->mode_info.num_dig = 5;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+ case CHIP_POLARIS10:
+ adev->mode_info.num_crtc = 6;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 6;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+ case CHIP_VEGA10:
+ adev->mode_info.num_crtc = 6;
+ adev->mode_info.num_hpd = 6;
+ adev->mode_info.num_dig = 6;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
+ case CHIP_RAVEN:
+ adev->mode_info.num_crtc = 4;
+ adev->mode_info.num_hpd = 4;
+ adev->mode_info.num_dig = 4;
+ adev->mode_info.plane_type = dm_plane_type_default;
+ break;
+#endif
+ default:
+ DRM_ERROR("Usupported ASIC type: 0x%X\n", adev->asic_type);
+ return -EINVAL;
+ }
+
+ if (adev->mode_info.funcs == NULL)
+ adev->mode_info.funcs = &dm_display_funcs;
+
+ /* Note: Do NOT change adev->audio_endpt_rreg and
+ * adev->audio_endpt_wreg because they are initialised in
+ * amdgpu_device_init() */
+#if defined(CONFIG_DEBUG_KERNEL_DC)
+ device_create_file(
+ adev->ddev->dev,
+ &dev_attr_s3_debug);
+#endif
+
+ return 0;
+}
+
+struct dm_connector_state {
+ struct drm_connector_state base;
+
+ enum amdgpu_rmx_type scaling;
+ uint8_t underscan_vborder;
+ uint8_t underscan_hborder;
+ bool underscan_enable;
+};
+
+#define to_dm_connector_state(x)\
+ container_of((x), struct dm_connector_state, base)
+
+static bool modeset_required(struct drm_crtc_state *crtc_state,
+ struct dc_stream_state *new_stream,
+ struct dc_stream_state *old_stream)
+{
+ if (!drm_atomic_crtc_needs_modeset(crtc_state))
+ return false;
+
+ if (!crtc_state->enable)
+ return false;
+
+ return crtc_state->active;
+}
+
+static bool modereset_required(struct drm_crtc_state *crtc_state)
+{
+ if (!drm_atomic_crtc_needs_modeset(crtc_state))
+ return false;
+
+ return !crtc_state->enable || !crtc_state->active;
+}
+
+static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
+{
+ drm_encoder_cleanup(encoder);
+ kfree(encoder);
+}
+
+static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
+ .destroy = amdgpu_dm_encoder_destroy,
+};
+
+static bool fill_rects_from_plane_state(const struct drm_plane_state *state,
+ struct dc_plane_state *plane_state)
+{
+ plane_state->src_rect.x = state->src_x >> 16;
+ plane_state->src_rect.y = state->src_y >> 16;
+ /*we ignore for now mantissa and do not to deal with floating pixels :(*/
+ plane_state->src_rect.width = state->src_w >> 16;
+
+ if (plane_state->src_rect.width == 0)
+ return false;
+
+ plane_state->src_rect.height = state->src_h >> 16;
+ if (plane_state->src_rect.height == 0)
+ return false;
+
+ plane_state->dst_rect.x = state->crtc_x;
+ plane_state->dst_rect.y = state->crtc_y;
+
+ if (state->crtc_w == 0)
+ return false;
+
+ plane_state->dst_rect.width = state->crtc_w;
+
+ if (state->crtc_h == 0)
+ return false;
+
+ plane_state->dst_rect.height = state->crtc_h;
+
+ plane_state->clip_rect = plane_state->dst_rect;
+
+ switch (state->rotation & DRM_MODE_ROTATE_MASK) {
+ case DRM_MODE_ROTATE_0:
+ plane_state->rotation = ROTATION_ANGLE_0;
+ break;
+ case DRM_MODE_ROTATE_90:
+ plane_state->rotation = ROTATION_ANGLE_90;
+ break;
+ case DRM_MODE_ROTATE_180:
+ plane_state->rotation = ROTATION_ANGLE_180;
+ break;
+ case DRM_MODE_ROTATE_270:
+ plane_state->rotation = ROTATION_ANGLE_270;
+ break;
+ default:
+ plane_state->rotation = ROTATION_ANGLE_0;
+ break;
+ }
+
+ return true;
+}
+static int get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb,
+ uint64_t *tiling_flags,
+ uint64_t *fb_location)
+{
+ struct amdgpu_bo *rbo = gem_to_amdgpu_bo(amdgpu_fb->obj);
+ int r = amdgpu_bo_reserve(rbo, false);
+
+ if (unlikely(r)) {
+ // Don't show error msg. when return -ERESTARTSYS
+ if (r != -ERESTARTSYS)
+ DRM_ERROR("Unable to reserve buffer: %d\n", r);
+ return r;
+ }
+
+ if (fb_location)
+ *fb_location = amdgpu_bo_gpu_offset(rbo);
+
+ if (tiling_flags)
+ amdgpu_bo_get_tiling_flags(rbo, tiling_flags);
+
+ amdgpu_bo_unreserve(rbo);
+
+ return r;
+}
+
+static int fill_plane_attributes_from_fb(struct amdgpu_device *adev,
+ struct dc_plane_state *plane_state,
+ const struct amdgpu_framebuffer *amdgpu_fb,
+ bool addReq)
+{
+ uint64_t tiling_flags;
+ uint64_t fb_location = 0;
+ uint64_t chroma_addr = 0;
+ unsigned int awidth;
+ const struct drm_framebuffer *fb = &amdgpu_fb->base;
+ int ret = 0;
+ struct drm_format_name_buf format_name;
+
+ ret = get_fb_info(
+ amdgpu_fb,
+ &tiling_flags,
+ addReq == true ? &fb_location:NULL);
+
+ if (ret)
+ return ret;
+
+ switch (fb->format->format) {
+ case DRM_FORMAT_C8:
+ plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS;
+ break;
+ case DRM_FORMAT_RGB565:
+ plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565;
+ break;
+ case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_ARGB8888:
+ plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
+ break;
+ case DRM_FORMAT_XRGB2101010:
+ case DRM_FORMAT_ARGB2101010:
+ plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010;
+ break;
+ case DRM_FORMAT_XBGR2101010:
+ case DRM_FORMAT_ABGR2101010:
+ plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010;
+ break;
+ case DRM_FORMAT_NV21:
+ plane_state->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr;
+ break;
+ case DRM_FORMAT_NV12:
+ plane_state->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb;
+ break;
+ default:
+ DRM_ERROR("Unsupported screen format %s\n",
+ drm_get_format_name(fb->format->format, &format_name));
+ return -EINVAL;
+ }
+
+ if (plane_state->format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
+ plane_state->address.type = PLN_ADDR_TYPE_GRAPHICS;
+ plane_state->address.grph.addr.low_part = lower_32_bits(fb_location);
+ plane_state->address.grph.addr.high_part = upper_32_bits(fb_location);
+ plane_state->plane_size.grph.surface_size.x = 0;
+ plane_state->plane_size.grph.surface_size.y = 0;
+ plane_state->plane_size.grph.surface_size.width = fb->width;
+ plane_state->plane_size.grph.surface_size.height = fb->height;
+ plane_state->plane_size.grph.surface_pitch =
+ fb->pitches[0] / fb->format->cpp[0];
+ /* TODO: unhardcode */
+ plane_state->color_space = COLOR_SPACE_SRGB;
+
+ } else {
+ awidth = ALIGN(fb->width, 64);
+ plane_state->address.type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE;
+ plane_state->address.video_progressive.luma_addr.low_part
+ = lower_32_bits(fb_location);
+ plane_state->address.video_progressive.luma_addr.high_part
+ = upper_32_bits(fb_location);
+ chroma_addr = fb_location + (u64)(awidth * fb->height);
+ plane_state->address.video_progressive.chroma_addr.low_part
+ = lower_32_bits(chroma_addr);
+ plane_state->address.video_progressive.chroma_addr.high_part
+ = upper_32_bits(chroma_addr);
+ plane_state->plane_size.video.luma_size.x = 0;
+ plane_state->plane_size.video.luma_size.y = 0;
+ plane_state->plane_size.video.luma_size.width = awidth;
+ plane_state->plane_size.video.luma_size.height = fb->height;
+ /* TODO: unhardcode */
+ plane_state->plane_size.video.luma_pitch = awidth;
+
+ plane_state->plane_size.video.chroma_size.x = 0;
+ plane_state->plane_size.video.chroma_size.y = 0;
+ plane_state->plane_size.video.chroma_size.width = awidth;
+ plane_state->plane_size.video.chroma_size.height = fb->height;
+ plane_state->plane_size.video.chroma_pitch = awidth / 2;
+
+ /* TODO: unhardcode */
+ plane_state->color_space = COLOR_SPACE_YCBCR709;
+ }
+
+ memset(&plane_state->tiling_info, 0, sizeof(plane_state->tiling_info));
+
+ /* Fill GFX8 params */
+ if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == DC_ARRAY_2D_TILED_THIN1) {
+ unsigned int bankw, bankh, mtaspect, tile_split, num_banks;
+
+ bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH);
+ bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT);
+ mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT);
+ tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT);
+ num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS);
+
+ /* XXX fix me for VI */
+ plane_state->tiling_info.gfx8.num_banks = num_banks;
+ plane_state->tiling_info.gfx8.array_mode =
+ DC_ARRAY_2D_TILED_THIN1;
+ plane_state->tiling_info.gfx8.tile_split = tile_split;
+ plane_state->tiling_info.gfx8.bank_width = bankw;
+ plane_state->tiling_info.gfx8.bank_height = bankh;
+ plane_state->tiling_info.gfx8.tile_aspect = mtaspect;
+ plane_state->tiling_info.gfx8.tile_mode =
+ DC_ADDR_SURF_MICRO_TILING_DISPLAY;
+ } else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE)
+ == DC_ARRAY_1D_TILED_THIN1) {
+ plane_state->tiling_info.gfx8.array_mode = DC_ARRAY_1D_TILED_THIN1;
+ }
+
+ plane_state->tiling_info.gfx8.pipe_config =
+ AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG);
+
+ if (adev->asic_type == CHIP_VEGA10 ||
+ adev->asic_type == CHIP_RAVEN) {
+ /* Fill GFX9 params */
+ plane_state->tiling_info.gfx9.num_pipes =
+ adev->gfx.config.gb_addr_config_fields.num_pipes;
+ plane_state->tiling_info.gfx9.num_banks =
+ adev->gfx.config.gb_addr_config_fields.num_banks;
+ plane_state->tiling_info.gfx9.pipe_interleave =
+ adev->gfx.config.gb_addr_config_fields.pipe_interleave_size;
+ plane_state->tiling_info.gfx9.num_shader_engines =
+ adev->gfx.config.gb_addr_config_fields.num_se;
+ plane_state->tiling_info.gfx9.max_compressed_frags =
+ adev->gfx.config.gb_addr_config_fields.max_compress_frags;
+ plane_state->tiling_info.gfx9.num_rb_per_se =
+ adev->gfx.config.gb_addr_config_fields.num_rb_per_se;
+ plane_state->tiling_info.gfx9.swizzle =
+ AMDGPU_TILING_GET(tiling_flags, SWIZZLE_MODE);
+ plane_state->tiling_info.gfx9.shaderEnable = 1;
+ }
+
+ plane_state->visible = true;
+ plane_state->scaling_quality.h_taps_c = 0;
+ plane_state->scaling_quality.v_taps_c = 0;
+
+ /* is this needed? is plane_state zeroed at allocation? */
+ plane_state->scaling_quality.h_taps = 0;
+ plane_state->scaling_quality.v_taps = 0;
+ plane_state->stereo_format = PLANE_STEREO_FORMAT_NONE;
+
+ return ret;
+
+}
+
+static void fill_gamma_from_crtc_state(const struct drm_crtc_state *crtc_state,
+ struct dc_plane_state *plane_state)
+{
+ int i;
+ struct dc_gamma *gamma;
+ struct drm_color_lut *lut =
+ (struct drm_color_lut *) crtc_state->gamma_lut->data;
+
+ gamma = dc_create_gamma();
+
+ if (gamma == NULL) {
+ WARN_ON(1);
+ return;
+ }
+
+ gamma->type = GAMMA_RGB_256;
+ gamma->num_entries = GAMMA_RGB_256_ENTRIES;
+ for (i = 0; i < GAMMA_RGB_256_ENTRIES; i++) {
+ gamma->entries.red[i] = dal_fixed31_32_from_int(lut[i].red);
+ gamma->entries.green[i] = dal_fixed31_32_from_int(lut[i].green);
+ gamma->entries.blue[i] = dal_fixed31_32_from_int(lut[i].blue);
+ }
+
+ plane_state->gamma_correction = gamma;
+}
+
+static int fill_plane_attributes(struct amdgpu_device *adev,
+ struct dc_plane_state *dc_plane_state,
+ struct drm_plane_state *plane_state,
+ struct drm_crtc_state *crtc_state,
+ bool addrReq)
+{
+ const struct amdgpu_framebuffer *amdgpu_fb =
+ to_amdgpu_framebuffer(plane_state->fb);
+ const struct drm_crtc *crtc = plane_state->crtc;
+ struct dc_transfer_func *input_tf;
+ int ret = 0;
+
+ if (!fill_rects_from_plane_state(plane_state, dc_plane_state))
+ return -EINVAL;
+
+ ret = fill_plane_attributes_from_fb(
+ crtc->dev->dev_private,
+ dc_plane_state,
+ amdgpu_fb,
+ addrReq);
+
+ if (ret)
+ return ret;
+
+ input_tf = dc_create_transfer_func();
+
+ if (input_tf == NULL)
+ return -ENOMEM;
+
+ input_tf->type = TF_TYPE_PREDEFINED;
+ input_tf->tf = TRANSFER_FUNCTION_SRGB;
+
+ dc_plane_state->in_transfer_func = input_tf;
+
+ /* In case of gamma set, update gamma value */
+ if (crtc_state->gamma_lut)
+ fill_gamma_from_crtc_state(crtc_state, dc_plane_state);
+
+ return ret;
+}
+
+/*****************************************************************************/
+
+static void update_stream_scaling_settings(const struct drm_display_mode *mode,
+ const struct dm_connector_state *dm_state,
+ struct dc_stream_state *stream)
+{
+ enum amdgpu_rmx_type rmx_type;
+
+ struct rect src = { 0 }; /* viewport in composition space*/
+ struct rect dst = { 0 }; /* stream addressable area */
+
+ /* no mode. nothing to be done */
+ if (!mode)
+ return;
+
+ /* Full screen scaling by default */
+ src.width = mode->hdisplay;
+ src.height = mode->vdisplay;
+ dst.width = stream->timing.h_addressable;
+ dst.height = stream->timing.v_addressable;
+
+ rmx_type = dm_state->scaling;
+ if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
+ if (src.width * dst.height <
+ src.height * dst.width) {
+ /* height needs less upscaling/more downscaling */
+ dst.width = src.width *
+ dst.height / src.height;
+ } else {
+ /* width needs less upscaling/more downscaling */
+ dst.height = src.height *
+ dst.width / src.width;
+ }
+ } else if (rmx_type == RMX_CENTER) {
+ dst = src;
+ }
+
+ dst.x = (stream->timing.h_addressable - dst.width) / 2;
+ dst.y = (stream->timing.v_addressable - dst.height) / 2;
+
+ if (dm_state->underscan_enable) {
+ dst.x += dm_state->underscan_hborder / 2;
+ dst.y += dm_state->underscan_vborder / 2;
+ dst.width -= dm_state->underscan_hborder;
+ dst.height -= dm_state->underscan_vborder;
+ }
+
+ stream->src = src;
+ stream->dst = dst;
+
+ DRM_DEBUG_DRIVER("Destination Rectangle x:%d y:%d width:%d height:%d\n",
+ dst.x, dst.y, dst.width, dst.height);
+
+}
+
+static enum dc_color_depth
+convert_color_depth_from_display_info(const struct drm_connector *connector)
+{
+ uint32_t bpc = connector->display_info.bpc;
+
+ /* Limited color depth to 8bit
+ * TODO: Still need to handle deep color
+ */
+ if (bpc > 8)
+ bpc = 8;
+
+ switch (bpc) {
+ case 0:
+ /* Temporary Work around, DRM don't parse color depth for
+ * EDID revision before 1.4
+ * TODO: Fix edid parsing
+ */
+ return COLOR_DEPTH_888;
+ case 6:
+ return COLOR_DEPTH_666;
+ case 8:
+ return COLOR_DEPTH_888;
+ case 10:
+ return COLOR_DEPTH_101010;
+ case 12:
+ return COLOR_DEPTH_121212;
+ case 14:
+ return COLOR_DEPTH_141414;
+ case 16:
+ return COLOR_DEPTH_161616;
+ default:
+ return COLOR_DEPTH_UNDEFINED;
+ }
+}
+
+static enum dc_aspect_ratio
+get_aspect_ratio(const struct drm_display_mode *mode_in)
+{
+ int32_t width = mode_in->crtc_hdisplay * 9;
+ int32_t height = mode_in->crtc_vdisplay * 16;
+
+ if ((width - height) < 10 && (width - height) > -10)
+ return ASPECT_RATIO_16_9;
+ else
+ return ASPECT_RATIO_4_3;
+}
+
+static enum dc_color_space
+get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
+{
+ enum dc_color_space color_space = COLOR_SPACE_SRGB;
+
+ switch (dc_crtc_timing->pixel_encoding) {
+ case PIXEL_ENCODING_YCBCR422:
+ case PIXEL_ENCODING_YCBCR444:
+ case PIXEL_ENCODING_YCBCR420:
+ {
+ /*
+ * 27030khz is the separation point between HDTV and SDTV
+ * according to HDMI spec, we use YCbCr709 and YCbCr601
+ * respectively
+ */
+ if (dc_crtc_timing->pix_clk_khz > 27030) {
+ if (dc_crtc_timing->flags.Y_ONLY)
+ color_space =
+ COLOR_SPACE_YCBCR709_LIMITED;
+ else
+ color_space = COLOR_SPACE_YCBCR709;
+ } else {
+ if (dc_crtc_timing->flags.Y_ONLY)
+ color_space =
+ COLOR_SPACE_YCBCR601_LIMITED;
+ else
+ color_space = COLOR_SPACE_YCBCR601;
+ }
+
+ }
+ break;
+ case PIXEL_ENCODING_RGB:
+ color_space = COLOR_SPACE_SRGB;
+ break;
+
+ default:
+ WARN_ON(1);
+ break;
+ }
+
+ return color_space;
+}
+
+/*****************************************************************************/
+
+static void
+fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream,
+ const struct drm_display_mode *mode_in,
+ const struct drm_connector *connector)
+{
+ struct dc_crtc_timing *timing_out = &stream->timing;
+
+ memset(timing_out, 0, sizeof(struct dc_crtc_timing));
+
+ timing_out->h_border_left = 0;
+ timing_out->h_border_right = 0;
+ timing_out->v_border_top = 0;
+ timing_out->v_border_bottom = 0;
+ /* TODO: un-hardcode */
+
+ if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444)
+ && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A)
+ timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
+ else
+ timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
+
+ timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
+ timing_out->display_color_depth = convert_color_depth_from_display_info(
+ connector);
+ timing_out->scan_type = SCANNING_TYPE_NODATA;
+ timing_out->hdmi_vic = 0;
+ timing_out->vic = drm_match_cea_mode(mode_in);
+
+ timing_out->h_addressable = mode_in->crtc_hdisplay;
+ timing_out->h_total = mode_in->crtc_htotal;
+ timing_out->h_sync_width =
+ mode_in->crtc_hsync_end - mode_in->crtc_hsync_start;
+ timing_out->h_front_porch =
+ mode_in->crtc_hsync_start - mode_in->crtc_hdisplay;
+ timing_out->v_total = mode_in->crtc_vtotal;
+ timing_out->v_addressable = mode_in->crtc_vdisplay;
+ timing_out->v_front_porch =
+ mode_in->crtc_vsync_start - mode_in->crtc_vdisplay;
+ timing_out->v_sync_width =
+ mode_in->crtc_vsync_end - mode_in->crtc_vsync_start;
+ timing_out->pix_clk_khz = mode_in->crtc_clock;
+ timing_out->aspect_ratio = get_aspect_ratio(mode_in);
+ if (mode_in->flags & DRM_MODE_FLAG_PHSYNC)
+ timing_out->flags.HSYNC_POSITIVE_POLARITY = 1;
+ if (mode_in->flags & DRM_MODE_FLAG_PVSYNC)
+ timing_out->flags.VSYNC_POSITIVE_POLARITY = 1;
+
+ stream->output_color_space = get_output_color_space(timing_out);
+
+ {
+ struct dc_transfer_func *tf = dc_create_transfer_func();
+
+ tf->type = TF_TYPE_PREDEFINED;
+ tf->tf = TRANSFER_FUNCTION_SRGB;
+ stream->out_transfer_func = tf;
+ }
+}
+
+static void fill_audio_info(struct audio_info *audio_info,
+ const struct drm_connector *drm_connector,
+ const struct dc_sink *dc_sink)
+{
+ int i = 0;
+ int cea_revision = 0;
+ const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
+
+ audio_info->manufacture_id = edid_caps->manufacturer_id;
+ audio_info->product_id = edid_caps->product_id;
+
+ cea_revision = drm_connector->display_info.cea_rev;
+
+ strncpy(audio_info->display_name,
+ edid_caps->display_name,
+ AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS - 1);
+
+ if (cea_revision >= 3) {
+ audio_info->mode_count = edid_caps->audio_mode_count;
+
+ for (i = 0; i < audio_info->mode_count; ++i) {
+ audio_info->modes[i].format_code =
+ (enum audio_format_code)
+ (edid_caps->audio_modes[i].format_code);
+ audio_info->modes[i].channel_count =
+ edid_caps->audio_modes[i].channel_count;
+ audio_info->modes[i].sample_rates.all =
+ edid_caps->audio_modes[i].sample_rate;
+ audio_info->modes[i].sample_size =
+ edid_caps->audio_modes[i].sample_size;
+ }
+ }
+
+ audio_info->flags.all = edid_caps->speaker_flags;
+
+ /* TODO: We only check for the progressive mode, check for interlace mode too */
+ if (drm_connector->latency_present[0]) {
+ audio_info->video_latency = drm_connector->video_latency[0];
+ audio_info->audio_latency = drm_connector->audio_latency[0];
+ }
+
+ /* TODO: For DP, video and audio latency should be calculated from DPCD caps */
+
+}
+
+static void
+copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode,
+ struct drm_display_mode *dst_mode)
+{
+ dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay;
+ dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay;
+ dst_mode->crtc_clock = src_mode->crtc_clock;
+ dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start;
+ dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end;
+ dst_mode->crtc_hsync_start = src_mode->crtc_hsync_start;
+ dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end;
+ dst_mode->crtc_htotal = src_mode->crtc_htotal;
+ dst_mode->crtc_hskew = src_mode->crtc_hskew;
+ dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start;
+ dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end;
+ dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start;
+ dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end;
+ dst_mode->crtc_vtotal = src_mode->crtc_vtotal;
+}
+
+static void
+decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode,
+ const struct drm_display_mode *native_mode,
+ bool scale_enabled)
+{
+ if (scale_enabled) {
+ copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
+ } else if (native_mode->clock == drm_mode->clock &&
+ native_mode->htotal == drm_mode->htotal &&
+ native_mode->vtotal == drm_mode->vtotal) {
+ copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
+ } else {
+ /* no scaling nor amdgpu inserted, no need to patch */
+ }
+}
+
+static int create_fake_sink(struct amdgpu_dm_connector *aconnector)
+{
+ struct dc_sink *sink = NULL;
+ struct dc_sink_init_data sink_init_data = { 0 };
+
+ sink_init_data.link = aconnector->dc_link;
+ sink_init_data.sink_signal = aconnector->dc_link->connector_signal;
+
+ sink = dc_sink_create(&sink_init_data);
+ if (!sink) {
+ DRM_ERROR("Failed to create sink!\n");
+ return -ENOMEM;
+ }
+
+ sink->sink_signal = SIGNAL_TYPE_VIRTUAL;
+ aconnector->fake_enable = true;
+
+ aconnector->dc_sink = sink;
+ aconnector->dc_link->local_sink = sink;
+
+ return 0;
+}
+
+static struct dc_stream_state *
+create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
+ const struct drm_display_mode *drm_mode,
+ const struct dm_connector_state *dm_state)
+{
+ struct drm_display_mode *preferred_mode = NULL;
+ const struct drm_connector *drm_connector;
+ struct dc_stream_state *stream = NULL;
+ struct drm_display_mode mode = *drm_mode;
+ bool native_mode_found = false;
+
+ if (aconnector == NULL) {
+ DRM_ERROR("aconnector is NULL!\n");
+ goto drm_connector_null;
+ }
+
+ if (dm_state == NULL) {
+ DRM_ERROR("dm_state is NULL!\n");
+ goto dm_state_null;
+ }
+
+ drm_connector = &aconnector->base;
+
+ if (!aconnector->dc_sink) {
+ /*
+ * Exclude MST from creating fake_sink
+ * TODO: need to enable MST into fake_sink feature
+ */
+ if (aconnector->mst_port)
+ goto stream_create_fail;
+
+ if (create_fake_sink(aconnector))
+ goto stream_create_fail;
+ }
+
+ stream = dc_create_stream_for_sink(aconnector->dc_sink);
+
+ if (stream == NULL) {
+ DRM_ERROR("Failed to create stream for sink!\n");
+ goto stream_create_fail;
+ }
+
+ list_for_each_entry(preferred_mode, &aconnector->base.modes, head) {
+ /* Search for preferred mode */
+ if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) {
+ native_mode_found = true;
+ break;
+ }
+ }
+ if (!native_mode_found)
+ preferred_mode = list_first_entry_or_null(
+ &aconnector->base.modes,
+ struct drm_display_mode,
+ head);
+
+ if (preferred_mode == NULL) {
+ /* This may not be an error, the use case is when we we have no
+ * usermode calls to reset and set mode upon hotplug. In this
+ * case, we call set mode ourselves to restore the previous mode
+ * and the modelist may not be filled in in time.
+ */
+ DRM_DEBUG_DRIVER("No preferred mode found\n");
+ } else {
+ decide_crtc_timing_for_drm_display_mode(
+ &mode, preferred_mode,
+ dm_state->scaling != RMX_OFF);
+ }
+
+ fill_stream_properties_from_drm_display_mode(stream,
+ &mode, &aconnector->base);
+ update_stream_scaling_settings(&mode, dm_state, stream);
+
+ fill_audio_info(
+ &stream->audio_info,
+ drm_connector,
+ aconnector->dc_sink);
+
+stream_create_fail:
+dm_state_null:
+drm_connector_null:
+ return stream;
+}
+
+static void amdgpu_dm_crtc_destroy(struct drm_crtc *crtc)
+{
+ drm_crtc_cleanup(crtc);
+ kfree(crtc);
+}
+
+static void dm_crtc_destroy_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ struct dm_crtc_state *cur = to_dm_crtc_state(state);
+
+ /* TODO Destroy dc_stream objects are stream object is flattened */
+ if (cur->stream)
+ dc_stream_release(cur->stream);
+
+
+ __drm_atomic_helper_crtc_destroy_state(state);
+
+
+ kfree(state);
+}
+
+static void dm_crtc_reset_state(struct drm_crtc *crtc)
+{
+ struct dm_crtc_state *state;
+
+ if (crtc->state)
+ dm_crtc_destroy_state(crtc, crtc->state);
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (WARN_ON(!state))
+ return;
+
+ crtc->state = &state->base;
+ crtc->state->crtc = crtc;
+
+}
+
+static struct drm_crtc_state *
+dm_crtc_duplicate_state(struct drm_crtc *crtc)
+{
+ struct dm_crtc_state *state, *cur;
+
+ cur = to_dm_crtc_state(crtc->state);
+
+ if (WARN_ON(!crtc->state))
+ return NULL;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
+
+ if (cur->stream) {
+ state->stream = cur->stream;
+ dc_stream_retain(state->stream);
+ }
+
+ /* TODO Duplicate dc_stream after objects are stream object is flattened */
+
+ return &state->base;
+}
+
+/* Implemented only the options currently availible for the driver */
+static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
+ .reset = dm_crtc_reset_state,
+ .destroy = amdgpu_dm_crtc_destroy,
+ .gamma_set = drm_atomic_helper_legacy_gamma_set,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ .atomic_duplicate_state = dm_crtc_duplicate_state,
+ .atomic_destroy_state = dm_crtc_destroy_state,
+};
+
+static enum drm_connector_status
+amdgpu_dm_connector_detect(struct drm_connector *connector, bool force)
+{
+ bool connected;
+ struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+ /* Notes:
+ * 1. This interface is NOT called in context of HPD irq.
+ * 2. This interface *is called* in context of user-mode ioctl. Which
+ * makes it a bad place for *any* MST-related activit. */
+
+ if (aconnector->base.force == DRM_FORCE_UNSPECIFIED &&
+ !aconnector->fake_enable)
+ connected = (aconnector->dc_sink != NULL);
+ else
+ connected = (aconnector->base.force == DRM_FORCE_ON);
+
+ return (connected ? connector_status_connected :
+ connector_status_disconnected);
+}
+
+int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
+ struct drm_connector_state *connector_state,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct drm_device *dev = connector->dev;
+ struct amdgpu_device *adev = dev->dev_private;
+ struct dm_connector_state *dm_old_state =
+ to_dm_connector_state(connector->state);
+ struct dm_connector_state *dm_new_state =
+ to_dm_connector_state(connector_state);
+
+ int ret = -EINVAL;
+
+ if (property == dev->mode_config.scaling_mode_property) {
+ enum amdgpu_rmx_type rmx_type;
+
+ switch (val) {
+ case DRM_MODE_SCALE_CENTER:
+ rmx_type = RMX_CENTER;
+ break;
+ case DRM_MODE_SCALE_ASPECT:
+ rmx_type = RMX_ASPECT;
+ break;
+ case DRM_MODE_SCALE_FULLSCREEN:
+ rmx_type = RMX_FULL;
+ break;
+ case DRM_MODE_SCALE_NONE:
+ default:
+ rmx_type = RMX_OFF;
+ break;
+ }
+
+ if (dm_old_state->scaling == rmx_type)
+ return 0;
+
+ dm_new_state->scaling = rmx_type;
+ ret = 0;
+ } else if (property == adev->mode_info.underscan_hborder_property) {
+ dm_new_state->underscan_hborder = val;
+ ret = 0;
+ } else if (property == adev->mode_info.underscan_vborder_property) {
+ dm_new_state->underscan_vborder = val;
+ ret = 0;
+ } else if (property == adev->mode_info.underscan_property) {
+ dm_new_state->underscan_enable = val;
+ ret = 0;
+ }
+
+ return ret;
+}
+
+int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
+ const struct drm_connector_state *state,
+ struct drm_property *property,
+ uint64_t *val)
+{
+ struct drm_device *dev = connector->dev;
+ struct amdgpu_device *adev = dev->dev_private;
+ struct dm_connector_state *dm_state =
+ to_dm_connector_state(state);
+ int ret = -EINVAL;
+
+ if (property == dev->mode_config.scaling_mode_property) {
+ switch (dm_state->scaling) {
+ case RMX_CENTER:
+ *val = DRM_MODE_SCALE_CENTER;
+ break;
+ case RMX_ASPECT:
+ *val = DRM_MODE_SCALE_ASPECT;
+ break;
+ case RMX_FULL:
+ *val = DRM_MODE_SCALE_FULLSCREEN;
+ break;
+ case RMX_OFF:
+ default:
+ *val = DRM_MODE_SCALE_NONE;
+ break;
+ }
+ ret = 0;
+ } else if (property == adev->mode_info.underscan_hborder_property) {
+ *val = dm_state->underscan_hborder;
+ ret = 0;
+ } else if (property == adev->mode_info.underscan_vborder_property) {
+ *val = dm_state->underscan_vborder;
+ ret = 0;
+ } else if (property == adev->mode_info.underscan_property) {
+ *val = dm_state->underscan_enable;
+ ret = 0;
+ }
+ return ret;
+}
+
+static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
+{
+ struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+ const struct dc_link *link = aconnector->dc_link;
+ struct amdgpu_device *adev = connector->dev->dev_private;
+ struct amdgpu_display_manager *dm = &adev->dm;
+#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
+ defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
+
+ if (link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) {
+ amdgpu_dm_register_backlight_device(dm);
+
+ if (dm->backlight_dev) {
+ backlight_device_unregister(dm->backlight_dev);
+ dm->backlight_dev = NULL;
+ }
+
+ }
+#endif
+ drm_connector_unregister(connector);
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
+{
+ struct dm_connector_state *state =
+ to_dm_connector_state(connector->state);
+
+ kfree(state);
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+
+ if (state) {
+ state->scaling = RMX_OFF;
+ state->underscan_enable = false;
+ state->underscan_hborder = 0;
+ state->underscan_vborder = 0;
+
+ connector->state = &state->base;
+ connector->state->connector = connector;
+ }
+}
+
+struct drm_connector_state *
+amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector)
+{
+ struct dm_connector_state *state =
+ to_dm_connector_state(connector->state);
+
+ struct dm_connector_state *new_state =
+ kmemdup(state, sizeof(*state), GFP_KERNEL);
+
+ if (new_state) {
+ __drm_atomic_helper_connector_duplicate_state(connector,
+ &new_state->base);
+ return &new_state->base;
+ }
+
+ return NULL;
+}
+
+static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
+ .reset = amdgpu_dm_connector_funcs_reset,
+ .detect = amdgpu_dm_connector_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = amdgpu_dm_connector_destroy,
+ .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+ .atomic_set_property = amdgpu_dm_connector_atomic_set_property,
+ .atomic_get_property = amdgpu_dm_connector_atomic_get_property
+};
+
+static struct drm_encoder *best_encoder(struct drm_connector *connector)
+{
+ int enc_id = connector->encoder_ids[0];
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+
+ DRM_DEBUG_DRIVER("Finding the best encoder\n");
+
+ /* pick the encoder ids */
+ if (enc_id) {
+ obj = drm_mode_object_find(connector->dev, NULL, enc_id, DRM_MODE_OBJECT_ENCODER);
+ if (!obj) {
+ DRM_ERROR("Couldn't find a matching encoder for our connector\n");
+ return NULL;
+ }
+ encoder = obj_to_encoder(obj);
+ return encoder;
+ }
+ DRM_ERROR("No encoder id\n");
+ return NULL;
+}
+
+static int get_modes(struct drm_connector *connector)
+{
+ return amdgpu_dm_connector_get_modes(connector);
+}
+
+static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
+{
+ struct dc_sink_init_data init_params = {
+ .link = aconnector->dc_link,
+ .sink_signal = SIGNAL_TYPE_VIRTUAL
+ };
+ struct edid *edid;
+
+ if (!aconnector->base.edid_blob_ptr ||
+ !aconnector->base.edid_blob_ptr->data) {
+ DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
+ aconnector->base.name);
+
+ aconnector->base.force = DRM_FORCE_OFF;
+ aconnector->base.override_edid = false;
+ return;
+ }
+
+ edid = (struct edid *) aconnector->base.edid_blob_ptr->data;
+
+ aconnector->edid = edid;
+
+ aconnector->dc_em_sink = dc_link_add_remote_sink(
+ aconnector->dc_link,
+ (uint8_t *)edid,
+ (edid->extensions + 1) * EDID_LENGTH,
+ &init_params);
+
+ if (aconnector->base.force == DRM_FORCE_ON)
+ aconnector->dc_sink = aconnector->dc_link->local_sink ?
+ aconnector->dc_link->local_sink :
+ aconnector->dc_em_sink;
+}
+
+static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector)
+{
+ struct dc_link *link = (struct dc_link *)aconnector->dc_link;
+
+ /* In case of headless boot with force on for DP managed connector
+ * Those settings have to be != 0 to get initial modeset
+ */
+ if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) {
+ link->verified_link_cap.lane_count = LANE_COUNT_FOUR;
+ link->verified_link_cap.link_rate = LINK_RATE_HIGH2;
+ }
+
+
+ aconnector->base.override_edid = true;
+ create_eml_sink(aconnector);
+}
+
+int amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int result = MODE_ERROR;
+ struct dc_sink *dc_sink;
+ struct amdgpu_device *adev = connector->dev->dev_private;
+ /* TODO: Unhardcode stream count */
+ struct dc_stream_state *stream;
+ struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+ if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||
+ (mode->flags & DRM_MODE_FLAG_DBLSCAN))
+ return result;
+
+ /* Only run this the first time mode_valid is called to initilialize
+ * EDID mgmt
+ */
+ if (aconnector->base.force != DRM_FORCE_UNSPECIFIED &&
+ !aconnector->dc_em_sink)
+ handle_edid_mgmt(aconnector);
+
+ dc_sink = to_amdgpu_dm_connector(connector)->dc_sink;
+
+ if (dc_sink == NULL) {
+ DRM_ERROR("dc_sink is NULL!\n");
+ goto fail;
+ }
+
+ stream = dc_create_stream_for_sink(dc_sink);
+ if (stream == NULL) {
+ DRM_ERROR("Failed to create stream for sink!\n");
+ goto fail;
+ }
+
+ drm_mode_set_crtcinfo(mode, 0);
+ fill_stream_properties_from_drm_display_mode(stream, mode, connector);
+
+ stream->src.width = mode->hdisplay;
+ stream->src.height = mode->vdisplay;
+ stream->dst = stream->src;
+
+ if (dc_validate_stream(adev->dm.dc, stream) == DC_OK)
+ result = MODE_OK;
+
+ dc_stream_release(stream);
+
+fail:
+ /* TODO: error handling*/
+ return result;
+}
+
+static const struct drm_connector_helper_funcs
+amdgpu_dm_connector_helper_funcs = {
+ /*
+ * If hotplug a second bigger display in FB Con mode, bigger resolution
+ * modes will be filtered by drm_mode_validate_size(), and those modes
+ * is missing after user start lightdm. So we need to renew modes list.
+ * in get_modes call back, not just return the modes count
+ */
+ .get_modes = get_modes,
+ .mode_valid = amdgpu_dm_connector_mode_valid,
+ .best_encoder = best_encoder
+};
+
+static void dm_crtc_helper_disable(struct drm_crtc *crtc)
+{
+}
+
+static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ struct amdgpu_device *adev = crtc->dev->dev_private;
+ struct dc *dc = adev->dm.dc;
+ struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
+ int ret = -EINVAL;
+
+ if (unlikely(!dm_crtc_state->stream &&
+ modeset_required(state, NULL, dm_crtc_state->stream))) {
+ WARN_ON(1);
+ return ret;
+ }
+
+ /* In some use cases, like reset, no stream is attached */
+ if (!dm_crtc_state->stream)
+ return 0;
+
+ if (dc_validate_stream(dc, dm_crtc_state->stream) == DC_OK)
+ return 0;
+
+ return ret;
+}
+
+static bool dm_crtc_helper_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static const struct drm_crtc_helper_funcs amdgpu_dm_crtc_helper_funcs = {
+ .disable = dm_crtc_helper_disable,
+ .atomic_check = dm_crtc_helper_atomic_check,
+ .mode_fixup = dm_crtc_helper_mode_fixup
+};
+
+static void dm_encoder_helper_disable(struct drm_encoder *encoder)
+{
+
+}
+
+static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ return 0;
+}
+
+const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
+ .disable = dm_encoder_helper_disable,
+ .atomic_check = dm_encoder_helper_atomic_check
+};
+
+static void dm_drm_plane_reset(struct drm_plane *plane)
+{
+ struct dm_plane_state *amdgpu_state = NULL;
+
+ if (plane->state)
+ plane->funcs->atomic_destroy_state(plane, plane->state);
+
+ amdgpu_state = kzalloc(sizeof(*amdgpu_state), GFP_KERNEL);
+ WARN_ON(amdgpu_state == NULL);
+
+ if (amdgpu_state) {
+ plane->state = &amdgpu_state->base;
+ plane->state->plane = plane;
+ plane->state->rotation = DRM_MODE_ROTATE_0;
+ }
+}
+
+static struct drm_plane_state *
+dm_drm_plane_duplicate_state(struct drm_plane *plane)
+{
+ struct dm_plane_state *dm_plane_state, *old_dm_plane_state;
+
+ old_dm_plane_state = to_dm_plane_state(plane->state);
+ dm_plane_state = kzalloc(sizeof(*dm_plane_state), GFP_KERNEL);
+ if (!dm_plane_state)
+ return NULL;
+
+ __drm_atomic_helper_plane_duplicate_state(plane, &dm_plane_state->base);
+
+ if (old_dm_plane_state->dc_state) {
+ dm_plane_state->dc_state = old_dm_plane_state->dc_state;
+ dc_plane_state_retain(dm_plane_state->dc_state);
+ }
+
+ return &dm_plane_state->base;
+}
+
+void dm_drm_plane_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct dm_plane_state *dm_plane_state = to_dm_plane_state(state);
+
+ if (dm_plane_state->dc_state)
+ dc_plane_state_release(dm_plane_state->dc_state);
+
+ drm_atomic_helper_plane_destroy_state(plane, state);
+}
+
+static const struct drm_plane_funcs dm_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_plane_cleanup,
+ .reset = dm_drm_plane_reset,
+ .atomic_duplicate_state = dm_drm_plane_duplicate_state,
+ .atomic_destroy_state = dm_drm_plane_destroy_state,
+};
+
+static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct amdgpu_framebuffer *afb;
+ struct drm_gem_object *obj;
+ struct amdgpu_bo *rbo;
+ uint64_t chroma_addr = 0;
+ int r;
+ struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old;
+ unsigned int awidth;
+
+ dm_plane_state_old = to_dm_plane_state(plane->state);
+ dm_plane_state_new = to_dm_plane_state(new_state);
+
+ if (!new_state->fb) {
+ DRM_DEBUG_DRIVER("No FB bound\n");
+ return 0;
+ }
+
+ afb = to_amdgpu_framebuffer(new_state->fb);
+
+ obj = afb->obj;
+ rbo = gem_to_amdgpu_bo(obj);
+ r = amdgpu_bo_reserve(rbo, false);
+ if (unlikely(r != 0))
+ return r;
+
+ r = amdgpu_bo_pin(rbo, AMDGPU_GEM_DOMAIN_VRAM, &afb->address);
+
+
+ amdgpu_bo_unreserve(rbo);
+
+ if (unlikely(r != 0)) {
+ if (r != -ERESTARTSYS)
+ DRM_ERROR("Failed to pin framebuffer with error %d\n", r);
+ return r;
+ }
+
+ amdgpu_bo_ref(rbo);
+
+ if (dm_plane_state_new->dc_state &&
+ dm_plane_state_old->dc_state != dm_plane_state_new->dc_state) {
+ struct dc_plane_state *plane_state = dm_plane_state_new->dc_state;
+
+ if (plane_state->format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
+ plane_state->address.grph.addr.low_part = lower_32_bits(afb->address);
+ plane_state->address.grph.addr.high_part = upper_32_bits(afb->address);
+ } else {
+ awidth = ALIGN(new_state->fb->width, 64);
+ plane_state->address.type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE;
+ plane_state->address.video_progressive.luma_addr.low_part
+ = lower_32_bits(afb->address);
+ plane_state->address.video_progressive.luma_addr.high_part
+ = upper_32_bits(afb->address);
+ chroma_addr = afb->address + (u64)(awidth * new_state->fb->height);
+ plane_state->address.video_progressive.chroma_addr.low_part
+ = lower_32_bits(chroma_addr);
+ plane_state->address.video_progressive.chroma_addr.high_part
+ = upper_32_bits(chroma_addr);
+ }
+ }
+
+ /* It's a hack for s3 since in 4.9 kernel filter out cursor buffer
+ * prepare and cleanup in drm_atomic_helper_prepare_planes
+ * and drm_atomic_helper_cleanup_planes because fb doens't in s3.
+ * IN 4.10 kernel this code should be removed and amdgpu_device_suspend
+ * code touching fram buffers should be avoided for DC.
+ */
+ if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(new_state->crtc);
+
+ acrtc->cursor_bo = obj;
+ }
+ return 0;
+}
+
+static void dm_plane_helper_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct amdgpu_bo *rbo;
+ struct amdgpu_framebuffer *afb;
+ int r;
+
+ if (!old_state->fb)
+ return;
+
+ afb = to_amdgpu_framebuffer(old_state->fb);
+ rbo = gem_to_amdgpu_bo(afb->obj);
+ r = amdgpu_bo_reserve(rbo, false);
+ if (unlikely(r)) {
+ DRM_ERROR("failed to reserve rbo before unpin\n");
+ return;
+ }
+
+ amdgpu_bo_unpin(rbo);
+ amdgpu_bo_unreserve(rbo);
+ amdgpu_bo_unref(&rbo);
+}
+
+static int dm_plane_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct amdgpu_device *adev = plane->dev->dev_private;
+ struct dc *dc = adev->dm.dc;
+ struct dm_plane_state *dm_plane_state = to_dm_plane_state(state);
+
+ if (!dm_plane_state->dc_state)
+ return 0;
+
+ if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK)
+ return 0;
+
+ return -EINVAL;
+}
+
+static const struct drm_plane_helper_funcs dm_plane_helper_funcs = {
+ .prepare_fb = dm_plane_helper_prepare_fb,
+ .cleanup_fb = dm_plane_helper_cleanup_fb,
+ .atomic_check = dm_plane_atomic_check,
+};
+
+/*
+ * TODO: these are currently initialized to rgb formats only.
+ * For future use cases we should either initialize them dynamically based on
+ * plane capabilities, or initialize this array to all formats, so internal drm
+ * check will succeed, and let DC to implement proper check
+ */
+static const uint32_t rgb_formats[] = {
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_RGBA8888,
+ DRM_FORMAT_XRGB2101010,
+ DRM_FORMAT_XBGR2101010,
+ DRM_FORMAT_ARGB2101010,
+ DRM_FORMAT_ABGR2101010,
+};
+
+static const uint32_t yuv_formats[] = {
+ DRM_FORMAT_NV12,
+ DRM_FORMAT_NV21,
+};
+
+static const u32 cursor_formats[] = {
+ DRM_FORMAT_ARGB8888
+};
+
+static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
+ struct amdgpu_plane *aplane,
+ unsigned long possible_crtcs)
+{
+ int res = -EPERM;
+
+ switch (aplane->base.type) {
+ case DRM_PLANE_TYPE_PRIMARY:
+ aplane->base.format_default = true;
+
+ res = drm_universal_plane_init(
+ dm->adev->ddev,
+ &aplane->base,
+ possible_crtcs,
+ &dm_plane_funcs,
+ rgb_formats,
+ ARRAY_SIZE(rgb_formats),
+ NULL, aplane->base.type, NULL);
+ break;
+ case DRM_PLANE_TYPE_OVERLAY:
+ res = drm_universal_plane_init(
+ dm->adev->ddev,
+ &aplane->base,
+ possible_crtcs,
+ &dm_plane_funcs,
+ yuv_formats,
+ ARRAY_SIZE(yuv_formats),
+ NULL, aplane->base.type, NULL);
+ break;
+ case DRM_PLANE_TYPE_CURSOR:
+ res = drm_universal_plane_init(
+ dm->adev->ddev,
+ &aplane->base,
+ possible_crtcs,
+ &dm_plane_funcs,
+ cursor_formats,
+ ARRAY_SIZE(cursor_formats),
+ NULL, aplane->base.type, NULL);
+ break;
+ }
+
+ drm_plane_helper_add(&aplane->base, &dm_plane_helper_funcs);
+
+ /* Create (reset) the plane state */
+ if (aplane->base.funcs->reset)
+ aplane->base.funcs->reset(&aplane->base);
+
+
+ return res;
+}
+
+static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
+ struct drm_plane *plane,
+ uint32_t crtc_index)
+{
+ struct amdgpu_crtc *acrtc = NULL;
+ struct amdgpu_plane *cursor_plane;
+
+ int res = -ENOMEM;
+
+ cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL);
+ if (!cursor_plane)
+ goto fail;
+
+ cursor_plane->base.type = DRM_PLANE_TYPE_CURSOR;
+ res = amdgpu_dm_plane_init(dm, cursor_plane, 0);
+
+ acrtc = kzalloc(sizeof(struct amdgpu_crtc), GFP_KERNEL);
+ if (!acrtc)
+ goto fail;
+
+ res = drm_crtc_init_with_planes(
+ dm->ddev,
+ &acrtc->base,
+ plane,
+ &cursor_plane->base,
+ &amdgpu_dm_crtc_funcs, NULL);
+
+ if (res)
+ goto fail;
+
+ drm_crtc_helper_add(&acrtc->base, &amdgpu_dm_crtc_helper_funcs);
+
+ /* Create (reset) the plane state */
+ if (acrtc->base.funcs->reset)
+ acrtc->base.funcs->reset(&acrtc->base);
+
+ acrtc->max_cursor_width = dm->adev->dm.dc->caps.max_cursor_size;
+ acrtc->max_cursor_height = dm->adev->dm.dc->caps.max_cursor_size;
+
+ acrtc->crtc_id = crtc_index;
+ acrtc->base.enabled = false;
+
+ dm->adev->mode_info.crtcs[crtc_index] = acrtc;
+ drm_mode_crtc_set_gamma_size(&acrtc->base, 256);
+
+ return 0;
+
+fail:
+ kfree(acrtc);
+ kfree(cursor_plane);
+ return res;
+}
+
+
+static int to_drm_connector_type(enum signal_type st)
+{
+ switch (st) {
+ case SIGNAL_TYPE_HDMI_TYPE_A:
+ return DRM_MODE_CONNECTOR_HDMIA;
+ case SIGNAL_TYPE_EDP:
+ return DRM_MODE_CONNECTOR_eDP;
+ case SIGNAL_TYPE_RGB:
+ return DRM_MODE_CONNECTOR_VGA;
+ case SIGNAL_TYPE_DISPLAY_PORT:
+ case SIGNAL_TYPE_DISPLAY_PORT_MST:
+ return DRM_MODE_CONNECTOR_DisplayPort;
+ case SIGNAL_TYPE_DVI_DUAL_LINK:
+ case SIGNAL_TYPE_DVI_SINGLE_LINK:
+ return DRM_MODE_CONNECTOR_DVID;
+ case SIGNAL_TYPE_VIRTUAL:
+ return DRM_MODE_CONNECTOR_VIRTUAL;
+
+ default:
+ return DRM_MODE_CONNECTOR_Unknown;
+ }
+}
+
+static void amdgpu_dm_get_native_mode(struct drm_connector *connector)
+{
+ const struct drm_connector_helper_funcs *helper =
+ connector->helper_private;
+ struct drm_encoder *encoder;
+ struct amdgpu_encoder *amdgpu_encoder;
+
+ encoder = helper->best_encoder(connector);
+
+ if (encoder == NULL)
+ return;
+
+ amdgpu_encoder = to_amdgpu_encoder(encoder);
+
+ amdgpu_encoder->native_mode.clock = 0;
+
+ if (!list_empty(&connector->probed_modes)) {
+ struct drm_display_mode *preferred_mode = NULL;
+
+ list_for_each_entry(preferred_mode,
+ &connector->probed_modes,
+ head) {
+ if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED)
+ amdgpu_encoder->native_mode = *preferred_mode;
+
+ break;
+ }
+
+ }
+}
+
+static struct drm_display_mode *
+amdgpu_dm_create_common_mode(struct drm_encoder *encoder,
+ char *name,
+ int hdisplay, int vdisplay)
+{
+ struct drm_device *dev = encoder->dev;
+ struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
+ struct drm_display_mode *mode = NULL;
+ struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
+
+ mode = drm_mode_duplicate(dev, native_mode);
+
+ if (mode == NULL)
+ return NULL;
+
+ mode->hdisplay = hdisplay;
+ mode->vdisplay = vdisplay;
+ mode->type &= ~DRM_MODE_TYPE_PREFERRED;
+ strncpy(mode->name, name, DRM_DISPLAY_MODE_LEN);
+
+ return mode;
+
+}
+
+static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder,
+ struct drm_connector *connector)
+{
+ struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
+ struct drm_display_mode *mode = NULL;
+ struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
+ struct amdgpu_dm_connector *amdgpu_dm_connector =
+ to_amdgpu_dm_connector(connector);
+ int i;
+ int n;
+ struct mode_size {
+ char name[DRM_DISPLAY_MODE_LEN];
+ int w;
+ int h;
+ } common_modes[] = {
+ { "640x480", 640, 480},
+ { "800x600", 800, 600},
+ { "1024x768", 1024, 768},
+ { "1280x720", 1280, 720},
+ { "1280x800", 1280, 800},
+ {"1280x1024", 1280, 1024},
+ { "1440x900", 1440, 900},
+ {"1680x1050", 1680, 1050},
+ {"1600x1200", 1600, 1200},
+ {"1920x1080", 1920, 1080},
+ {"1920x1200", 1920, 1200}
+ };
+
+ n = ARRAY_SIZE(common_modes);
+
+ for (i = 0; i < n; i++) {
+ struct drm_display_mode *curmode = NULL;
+ bool mode_existed = false;
+
+ if (common_modes[i].w > native_mode->hdisplay ||
+ common_modes[i].h > native_mode->vdisplay ||
+ (common_modes[i].w == native_mode->hdisplay &&
+ common_modes[i].h == native_mode->vdisplay))
+ continue;
+
+ list_for_each_entry(curmode, &connector->probed_modes, head) {
+ if (common_modes[i].w == curmode->hdisplay &&
+ common_modes[i].h == curmode->vdisplay) {
+ mode_existed = true;
+ break;
+ }
+ }
+
+ if (mode_existed)
+ continue;
+
+ mode = amdgpu_dm_create_common_mode(encoder,
+ common_modes[i].name, common_modes[i].w,
+ common_modes[i].h);
+ drm_mode_probed_add(connector, mode);
+ amdgpu_dm_connector->num_modes++;
+ }
+}
+
+static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
+ struct edid *edid)
+{
+ struct amdgpu_dm_connector *amdgpu_dm_connector =
+ to_amdgpu_dm_connector(connector);
+
+ if (edid) {
+ /* empty probed_modes */
+ INIT_LIST_HEAD(&connector->probed_modes);
+ amdgpu_dm_connector->num_modes =
+ drm_add_edid_modes(connector, edid);
+
+ amdgpu_dm_get_native_mode(connector);
+ } else {
+ amdgpu_dm_connector->num_modes = 0;
+ }
+}
+
+static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
+{
+ const struct drm_connector_helper_funcs *helper =
+ connector->helper_private;
+ struct amdgpu_dm_connector *amdgpu_dm_connector =
+ to_amdgpu_dm_connector(connector);
+ struct drm_encoder *encoder;
+ struct edid *edid = amdgpu_dm_connector->edid;
+
+ encoder = helper->best_encoder(connector);
+
+ amdgpu_dm_connector_ddc_get_modes(connector, edid);
+ amdgpu_dm_connector_add_common_modes(encoder, connector);
+ return amdgpu_dm_connector->num_modes;
+}
+
+void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
+ struct amdgpu_dm_connector *aconnector,
+ int connector_type,
+ struct dc_link *link,
+ int link_index)
+{
+ struct amdgpu_device *adev = dm->ddev->dev_private;
+
+ aconnector->connector_id = link_index;
+ aconnector->dc_link = link;
+ aconnector->base.interlace_allowed = false;
+ aconnector->base.doublescan_allowed = false;
+ aconnector->base.stereo_allowed = false;
+ aconnector->base.dpms = DRM_MODE_DPMS_OFF;
+ aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */
+
+ mutex_init(&aconnector->hpd_lock);
+
+ /* configure support HPD hot plug connector_>polled default value is 0
+ * which means HPD hot plug not supported
+ */
+ switch (connector_type) {
+ case DRM_MODE_CONNECTOR_HDMIA:
+ aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
+ break;
+ case DRM_MODE_CONNECTOR_DisplayPort:
+ aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
+ break;
+ case DRM_MODE_CONNECTOR_DVID:
+ aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
+ break;
+ default:
+ break;
+ }
+
+ drm_object_attach_property(&aconnector->base.base,
+ dm->ddev->mode_config.scaling_mode_property,
+ DRM_MODE_SCALE_NONE);
+
+ drm_object_attach_property(&aconnector->base.base,
+ adev->mode_info.underscan_property,
+ UNDERSCAN_OFF);
+ drm_object_attach_property(&aconnector->base.base,
+ adev->mode_info.underscan_hborder_property,
+ 0);
+ drm_object_attach_property(&aconnector->base.base,
+ adev->mode_info.underscan_vborder_property,
+ 0);
+
+}
+
+static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg *msgs, int num)
+{
+ struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap);
+ struct ddc_service *ddc_service = i2c->ddc_service;
+ struct i2c_command cmd;
+ int i;
+ int result = -EIO;
+
+ cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL);
+
+ if (!cmd.payloads)
+ return result;
+
+ cmd.number_of_payloads = num;
+ cmd.engine = I2C_COMMAND_ENGINE_DEFAULT;
+ cmd.speed = 100;
+
+ for (i = 0; i < num; i++) {
+ cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD);
+ cmd.payloads[i].address = msgs[i].addr;
+ cmd.payloads[i].length = msgs[i].len;
+ cmd.payloads[i].data = msgs[i].buf;
+ }
+
+ if (dal_i2caux_submit_i2c_command(
+ ddc_service->ctx->i2caux,
+ ddc_service->ddc_pin,
+ &cmd))
+ result = num;
+
+ kfree(cmd.payloads);
+ return result;
+}
+
+static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm amdgpu_dm_i2c_algo = {
+ .master_xfer = amdgpu_dm_i2c_xfer,
+ .functionality = amdgpu_dm_i2c_func,
+};
+
+static struct amdgpu_i2c_adapter *
+create_i2c(struct ddc_service *ddc_service,
+ int link_index,
+ int *res)
+{
+ struct amdgpu_device *adev = ddc_service->ctx->driver_context;
+ struct amdgpu_i2c_adapter *i2c;
+
+ i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL);
+ if (!i2c)
+ return NULL;
+ i2c->base.owner = THIS_MODULE;
+ i2c->base.class = I2C_CLASS_DDC;
+ i2c->base.dev.parent = &adev->pdev->dev;
+ i2c->base.algo = &amdgpu_dm_i2c_algo;
+ snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index);
+ i2c_set_adapdata(&i2c->base, i2c);
+ i2c->ddc_service = ddc_service;
+
+ return i2c;
+}
+
+/* Note: this function assumes that dc_link_detect() was called for the
+ * dc_link which will be represented by this aconnector.
+ */
+static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
+ struct amdgpu_dm_connector *aconnector,
+ uint32_t link_index,
+ struct amdgpu_encoder *aencoder)
+{
+ int res = 0;
+ int connector_type;
+ struct dc *dc = dm->dc;
+ struct dc_link *link = dc_get_link_at_index(dc, link_index);
+ struct amdgpu_i2c_adapter *i2c;
+
+ link->priv = aconnector;
+
+ DRM_DEBUG_DRIVER("%s()\n", __func__);
+
+ i2c = create_i2c(link->ddc, link->link_index, &res);
+ if (!i2c) {
+ DRM_ERROR("Failed to create i2c adapter data\n");
+ return -ENOMEM;
+ }
+
+ aconnector->i2c = i2c;
+ res = i2c_add_adapter(&i2c->base);
+
+ if (res) {
+ DRM_ERROR("Failed to register hw i2c %d\n", link->link_index);
+ goto out_free;
+ }
+
+ connector_type = to_drm_connector_type(link->connector_signal);
+
+ res = drm_connector_init(
+ dm->ddev,
+ &aconnector->base,
+ &amdgpu_dm_connector_funcs,
+ connector_type);
+
+ if (res) {
+ DRM_ERROR("connector_init failed\n");
+ aconnector->connector_id = -1;
+ goto out_free;
+ }
+
+ drm_connector_helper_add(
+ &aconnector->base,
+ &amdgpu_dm_connector_helper_funcs);
+
+ if (aconnector->base.funcs->reset)
+ aconnector->base.funcs->reset(&aconnector->base);
+
+ amdgpu_dm_connector_init_helper(
+ dm,
+ aconnector,
+ connector_type,
+ link,
+ link_index);
+
+ drm_mode_connector_attach_encoder(
+ &aconnector->base, &aencoder->base);
+
+ drm_connector_register(&aconnector->base);
+
+ if (connector_type == DRM_MODE_CONNECTOR_DisplayPort
+ || connector_type == DRM_MODE_CONNECTOR_eDP)
+ amdgpu_dm_initialize_dp_connector(dm, aconnector);
+
+#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
+ defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
+
+ /* NOTE: this currently will create backlight device even if a panel
+ * is not connected to the eDP/LVDS connector.
+ *
+ * This is less than ideal but we don't have sink information at this
+ * stage since detection happens after. We can't do detection earlier
+ * since MST detection needs connectors to be created first.
+ */
+ if (link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) {
+ /* Event if registration failed, we should continue with
+ * DM initialization because not having a backlight control
+ * is better then a black screen.
+ */
+ amdgpu_dm_register_backlight_device(dm);
+
+ if (dm->backlight_dev)
+ dm->backlight_link = link;
+ }
+#endif
+
+out_free:
+ if (res) {
+ kfree(i2c);
+ aconnector->i2c = NULL;
+ }
+ return res;
+}
+
+int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev)
+{
+ switch (adev->mode_info.num_crtc) {
+ case 1:
+ return 0x1;
+ case 2:
+ return 0x3;
+ case 3:
+ return 0x7;
+ case 4:
+ return 0xf;
+ case 5:
+ return 0x1f;
+ case 6:
+ default:
+ return 0x3f;
+ }
+}
+
+static int amdgpu_dm_encoder_init(struct drm_device *dev,
+ struct amdgpu_encoder *aencoder,
+ uint32_t link_index)
+{
+ struct amdgpu_device *adev = dev->dev_private;
+
+ int res = drm_encoder_init(dev,
+ &aencoder->base,
+ &amdgpu_dm_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS,
+ NULL);
+
+ aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
+
+ if (!res)
+ aencoder->encoder_id = link_index;
+ else
+ aencoder->encoder_id = -1;
+
+ drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs);
+
+ return res;
+}
+
+static void manage_dm_interrupts(struct amdgpu_device *adev,
+ struct amdgpu_crtc *acrtc,
+ bool enable)
+{
+ /*
+ * this is not correct translation but will work as soon as VBLANK
+ * constant is the same as PFLIP
+ */
+ int irq_type =
+ amdgpu_crtc_idx_to_irq_type(
+ adev,
+ acrtc->crtc_id);
+
+ if (enable) {
+ drm_crtc_vblank_on(&acrtc->base);
+ amdgpu_irq_get(
+ adev,
+ &adev->pageflip_irq,
+ irq_type);
+ } else {
+
+ amdgpu_irq_put(
+ adev,
+ &adev->pageflip_irq,
+ irq_type);
+ drm_crtc_vblank_off(&acrtc->base);
+ }
+}
+
+static bool
+is_scaling_state_different(const struct dm_connector_state *dm_state,
+ const struct dm_connector_state *old_dm_state)
+{
+ if (dm_state->scaling != old_dm_state->scaling)
+ return true;
+ if (!dm_state->underscan_enable && old_dm_state->underscan_enable) {
+ if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0)
+ return true;
+ } else if (dm_state->underscan_enable && !old_dm_state->underscan_enable) {
+ if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0)
+ return true;
+ } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder ||
+ dm_state->underscan_vborder != old_dm_state->underscan_vborder)
+ return true;
+ return false;
+}
+
+static void remove_stream(struct amdgpu_device *adev,
+ struct amdgpu_crtc *acrtc,
+ struct dc_stream_state *stream)
+{
+ /* this is the update mode case */
+ if (adev->dm.freesync_module)
+ mod_freesync_remove_stream(adev->dm.freesync_module, stream);
+
+ acrtc->otg_inst = -1;
+ acrtc->enabled = false;
+}
+
+static int get_cursor_position(struct drm_plane *plane, struct drm_crtc *crtc,
+ struct dc_cursor_position *position)
+{
+ struct amdgpu_crtc *amdgpu_crtc = amdgpu_crtc = to_amdgpu_crtc(crtc);
+ int x, y;
+ int xorigin = 0, yorigin = 0;
+
+ if (!crtc || !plane->state->fb) {
+ position->enable = false;
+ position->x = 0;
+ position->y = 0;
+ return 0;
+ }
+
+ if ((plane->state->crtc_w > amdgpu_crtc->max_cursor_width) ||
+ (plane->state->crtc_h > amdgpu_crtc->max_cursor_height)) {
+ DRM_ERROR("%s: bad cursor width or height %d x %d\n",
+ __func__,
+ plane->state->crtc_w,
+ plane->state->crtc_h);
+ return -EINVAL;
+ }
+
+ x = plane->state->crtc_x;
+ y = plane->state->crtc_y;
+ /* avivo cursor are offset into the total surface */
+ x += crtc->primary->state->src_x >> 16;
+ y += crtc->primary->state->src_y >> 16;
+ if (x < 0) {
+ xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1);
+ x = 0;
+ }
+ if (y < 0) {
+ yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1);
+ y = 0;
+ }
+ position->enable = true;
+ position->x = x;
+ position->y = y;
+ position->x_hotspot = xorigin;
+ position->y_hotspot = yorigin;
+
+ return 0;
+}
+
+static void handle_cursor_update(struct drm_plane *plane,
+ struct drm_plane_state *old_plane_state)
+{
+ struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb);
+ struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc;
+ struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL;
+ struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+ uint64_t address = afb ? afb->address : 0;
+ struct dc_cursor_position position;
+ struct dc_cursor_attributes attributes;
+ int ret;
+
+ if (!plane->state->fb && !old_plane_state->fb)
+ return;
+
+ DRM_DEBUG_DRIVER("%s: crtc_id=%d with size %d to %d\n",
+ __func__,
+ amdgpu_crtc->crtc_id,
+ plane->state->crtc_w,
+ plane->state->crtc_h);
+
+ ret = get_cursor_position(plane, crtc, &position);
+ if (ret)
+ return;
+
+ if (!position.enable) {
+ /* turn off cursor */
+ if (crtc_state && crtc_state->stream)
+ dc_stream_set_cursor_position(crtc_state->stream,
+ &position);
+ return;
+ }
+
+ amdgpu_crtc->cursor_width = plane->state->crtc_w;
+ amdgpu_crtc->cursor_height = plane->state->crtc_h;
+
+ attributes.address.high_part = upper_32_bits(address);
+ attributes.address.low_part = lower_32_bits(address);
+ attributes.width = plane->state->crtc_w;
+ attributes.height = plane->state->crtc_h;
+ attributes.color_format = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA;
+ attributes.rotation_angle = 0;
+ attributes.attribute_flags.value = 0;
+
+ attributes.pitch = attributes.width;
+
+ if (crtc_state->stream) {
+ if (!dc_stream_set_cursor_attributes(crtc_state->stream,
+ &attributes))
+ DRM_ERROR("DC failed to set cursor attributes\n");
+
+ if (!dc_stream_set_cursor_position(crtc_state->stream,
+ &position))
+ DRM_ERROR("DC failed to set cursor position\n");
+ }
+}
+
+static void prepare_flip_isr(struct amdgpu_crtc *acrtc)
+{
+
+ assert_spin_locked(&acrtc->base.dev->event_lock);
+ WARN_ON(acrtc->event);
+
+ acrtc->event = acrtc->base.state->event;
+
+ /* Set the flip status */
+ acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
+
+ /* Mark this event as consumed */
+ acrtc->base.state->event = NULL;
+
+ DRM_DEBUG_DRIVER("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
+ acrtc->crtc_id);
+}
+
+/*
+ * Executes flip
+ *
+ * Waits on all BO's fences and for proper vblank count
+ */
+static void amdgpu_dm_do_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ uint32_t target,
+ struct dc_state *state)
+{
+ unsigned long flags;
+ uint32_t target_vblank;
+ int r, vpos, hpos;
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+ struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(fb);
+ struct amdgpu_bo *abo = gem_to_amdgpu_bo(afb->obj);
+ struct amdgpu_device *adev = crtc->dev->dev_private;
+ bool async_flip = (crtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
+ struct dc_flip_addrs addr = { {0} };
+ /* TODO eliminate or rename surface_update */
+ struct dc_surface_update surface_updates[1] = { {0} };
+ struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
+
+
+ /* Prepare wait for target vblank early - before the fence-waits */
+ target_vblank = target - drm_crtc_vblank_count(crtc) +
+ amdgpu_get_vblank_counter_kms(crtc->dev, acrtc->crtc_id);
+
+ /* TODO This might fail and hence better not used, wait
+ * explicitly on fences instead
+ * and in general should be called for
+ * blocking commit to as per framework helpers
+ */
+ r = amdgpu_bo_reserve(abo, true);
+ if (unlikely(r != 0)) {
+ DRM_ERROR("failed to reserve buffer before flip\n");
+ WARN_ON(1);
+ }
+
+ /* Wait for all fences on this FB */
+ WARN_ON(reservation_object_wait_timeout_rcu(abo->tbo.resv, true, false,
+ MAX_SCHEDULE_TIMEOUT) < 0);
+
+ amdgpu_bo_unreserve(abo);
+
+ /* Wait until we're out of the vertical blank period before the one
+ * targeted by the flip
+ */
+ while ((acrtc->enabled &&
+ (amdgpu_get_crtc_scanoutpos(adev->ddev, acrtc->crtc_id, 0,
+ &vpos, &hpos, NULL, NULL,
+ &crtc->hwmode)
+ & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
+ (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
+ (int)(target_vblank -
+ amdgpu_get_vblank_counter_kms(adev->ddev, acrtc->crtc_id)) > 0)) {
+ usleep_range(1000, 1100);
+ }
+
+ /* Flip */
+ spin_lock_irqsave(&crtc->dev->event_lock, flags);
+ /* update crtc fb */
+ crtc->primary->fb = fb;
+
+ WARN_ON(acrtc->pflip_status != AMDGPU_FLIP_NONE);
+ WARN_ON(!acrtc_state->stream);
+
+ addr.address.grph.addr.low_part = lower_32_bits(afb->address);
+ addr.address.grph.addr.high_part = upper_32_bits(afb->address);
+ addr.flip_immediate = async_flip;
+
+
+ if (acrtc->base.state->event)
+ prepare_flip_isr(acrtc);
+
+ surface_updates->surface = dc_stream_get_status(acrtc_state->stream)->plane_states[0];
+ surface_updates->flip_addr = &addr;
+
+
+ dc_commit_updates_for_stream(adev->dm.dc,
+ surface_updates,
+ 1,
+ acrtc_state->stream,
+ NULL,
+ &surface_updates->surface,
+ state);
+
+ DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x \n",
+ __func__,
+ addr.address.grph.addr.high_part,
+ addr.address.grph.addr.low_part);
+
+
+ spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+}
+
+static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
+ struct drm_device *dev,
+ struct amdgpu_display_manager *dm,
+ struct drm_crtc *pcrtc,
+ bool *wait_for_vblank)
+{
+ uint32_t i;
+ struct drm_plane *plane;
+ struct drm_plane_state *old_plane_state, *new_plane_state;
+ struct dc_stream_state *dc_stream_attach;
+ struct dc_plane_state *plane_states_constructed[MAX_SURFACES];
+ struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
+ struct drm_crtc_state *new_pcrtc_state =
+ drm_atomic_get_new_crtc_state(state, pcrtc);
+ struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
+ struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+ int planes_count = 0;
+ unsigned long flags;
+
+ /* update planes when needed */
+ for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+ struct drm_crtc *crtc = new_plane_state->crtc;
+ struct drm_crtc_state *new_crtc_state;
+ struct drm_framebuffer *fb = new_plane_state->fb;
+ bool pflip_needed;
+ struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
+
+ if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+ handle_cursor_update(plane, old_plane_state);
+ continue;
+ }
+
+ if (!fb || !crtc || pcrtc != crtc)
+ continue;
+
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ if (!new_crtc_state->active)
+ continue;
+
+ pflip_needed = !state->allow_modeset;
+
+ spin_lock_irqsave(&crtc->dev->event_lock, flags);
+ if (acrtc_attach->pflip_status != AMDGPU_FLIP_NONE) {
+ DRM_ERROR("%s: acrtc %d, already busy\n",
+ __func__,
+ acrtc_attach->crtc_id);
+ /* In commit tail framework this cannot happen */
+ WARN_ON(1);
+ }
+ spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+
+ if (!pflip_needed) {
+ WARN_ON(!dm_new_plane_state->dc_state);
+
+ plane_states_constructed[planes_count] = dm_new_plane_state->dc_state;
+
+ dc_stream_attach = acrtc_state->stream;
+ planes_count++;
+
+ } else if (new_crtc_state->planes_changed) {
+ /* Assume even ONE crtc with immediate flip means
+ * entire can't wait for VBLANK
+ * TODO Check if it's correct
+ */
+ *wait_for_vblank =
+ new_pcrtc_state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC ?
+ false : true;
+
+ /* TODO: Needs rework for multiplane flip */
+ if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+ drm_crtc_vblank_get(crtc);
+
+ amdgpu_dm_do_flip(
+ crtc,
+ fb,
+ drm_crtc_vblank_count(crtc) + *wait_for_vblank,
+ dm_state->context);
+ }
+
+ }
+
+ if (planes_count) {
+ unsigned long flags;
+
+ if (new_pcrtc_state->event) {
+
+ drm_crtc_vblank_get(pcrtc);
+
+ spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
+ prepare_flip_isr(acrtc_attach);
+ spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
+ }
+
+ if (false == dc_commit_planes_to_stream(dm->dc,
+ plane_states_constructed,
+ planes_count,
+ dc_stream_attach,
+ dm_state->context))
+ dm_error("%s: Failed to attach plane!\n", __func__);
+ } else {
+ /*TODO BUG Here should go disable planes on CRTC. */
+ }
+}
+
+
+static int amdgpu_dm_atomic_commit(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool nonblock)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ struct amdgpu_device *adev = dev->dev_private;
+ int i;
+
+ /*
+ * We evade vblanks and pflips on crtc that
+ * should be changed. We do it here to flush & disable
+ * interrupts before drm_swap_state is called in drm_atomic_helper_commit
+ * it will update crtc->dm_crtc_state->stream pointer which is used in
+ * the ISRs.
+ */
+ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+ if (drm_atomic_crtc_needs_modeset(new_crtc_state) && dm_old_crtc_state->stream)
+ manage_dm_interrupts(adev, acrtc, false);
+ }
+ /* Add check here for SoC's that support hardware cursor plane, to
+ * unset legacy_cursor_update */
+
+ return drm_atomic_helper_commit(dev, state, nonblock);
+
+ /*TODO Handle EINTR, reenable IRQ*/
+}
+
+static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
+{
+ struct drm_device *dev = state->dev;
+ struct amdgpu_device *adev = dev->dev_private;
+ struct amdgpu_display_manager *dm = &adev->dm;
+ struct dm_atomic_state *dm_state;
+ uint32_t i, j;
+ uint32_t new_crtcs_count = 0;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ struct amdgpu_crtc *new_crtcs[MAX_STREAMS];
+ struct dc_stream_state *new_stream = NULL;
+ unsigned long flags;
+ bool wait_for_vblank = true;
+ struct drm_connector *connector;
+ struct drm_connector_state *old_con_state, *new_con_state;
+ struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+
+ drm_atomic_helper_update_legacy_modeset_state(dev, state);
+
+ dm_state = to_dm_atomic_state(state);
+
+ /* update changed items */
+ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+ dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+ DRM_DEBUG_DRIVER(
+ "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
+ "planes_changed:%d, mode_changed:%d,active_changed:%d,"
+ "connectors_changed:%d\n",
+ acrtc->crtc_id,
+ new_crtc_state->enable,
+ new_crtc_state->active,
+ new_crtc_state->planes_changed,
+ new_crtc_state->mode_changed,
+ new_crtc_state->active_changed,
+ new_crtc_state->connectors_changed);
+
+ /* handles headless hotplug case, updating new_state and
+ * aconnector as needed
+ */
+
+ if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) {
+
+ DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
+
+ if (!dm_new_crtc_state->stream) {
+ /*
+ * this could happen because of issues with
+ * userspace notifications delivery.
+ * In this case userspace tries to set mode on
+ * display which is disconnect in fact.
+ * dc_sink in NULL in this case on aconnector.
+ * We expect reset mode will come soon.
+ *
+ * This can also happen when unplug is done
+ * during resume sequence ended
+ *
+ * In this case, we want to pretend we still
+ * have a sink to keep the pipe running so that
+ * hw state is consistent with the sw state
+ */
+ DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
+ __func__, acrtc->base.base.id);
+ continue;
+ }
+
+
+ if (dm_old_crtc_state->stream)
+ remove_stream(adev, acrtc, dm_old_crtc_state->stream);
+
+
+ /*
+ * this loop saves set mode crtcs
+ * we needed to enable vblanks once all
+ * resources acquired in dc after dc_commit_streams
+ */
+
+ /*TODO move all this into dm_crtc_state, get rid of
+ * new_crtcs array and use old and new atomic states
+ * instead
+ */
+ new_crtcs[new_crtcs_count] = acrtc;
+ new_crtcs_count++;
+
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ acrtc->enabled = true;
+ acrtc->hw_mode = new_crtc_state->mode;
+ crtc->hwmode = new_crtc_state->mode;
+ } else if (modereset_required(new_crtc_state)) {
+ DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
+
+ /* i.e. reset mode */
+ if (dm_old_crtc_state->stream)
+ remove_stream(adev, acrtc, dm_old_crtc_state->stream);
+ }
+ } /* for_each_crtc_in_state() */
+
+ /*
+ * Add streams after required streams from new and replaced streams
+ * are removed from freesync module
+ */
+ if (adev->dm.freesync_module) {
+ for (i = 0; i < new_crtcs_count; i++) {
+ struct amdgpu_dm_connector *aconnector = NULL;
+
+ new_crtc_state = drm_atomic_get_new_crtc_state(state,
+ &new_crtcs[i]->base);
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ new_stream = dm_new_crtc_state->stream;
+ aconnector = amdgpu_dm_find_first_crtc_matching_connector(
+ state,
+ &new_crtcs[i]->base);
+ if (!aconnector) {
+ DRM_DEBUG_DRIVER("Atomic commit: Failed to find connector for acrtc id:%d "
+ "skipping freesync init\n",
+ new_crtcs[i]->crtc_id);
+ continue;
+ }
+
+ mod_freesync_add_stream(adev->dm.freesync_module,
+ new_stream, &aconnector->caps);
+ }
+ }
+
+ if (dm_state->context)
+ WARN_ON(!dc_commit_state(dm->dc, dm_state->context));
+
+ for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ if (dm_new_crtc_state->stream != NULL) {
+ const struct dc_stream_status *status =
+ dc_stream_get_status(dm_new_crtc_state->stream);
+
+ if (!status)
+ DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc);
+ else
+ acrtc->otg_inst = status->primary_otg_inst;
+ }
+ }
+
+ /* Handle scaling and underscan changes*/
+ for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+ struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+ struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+ struct dc_stream_status *status = NULL;
+
+ if (acrtc)
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+
+ /* Skip any modesets/resets */
+ if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
+ continue;
+
+ /* Skip any thing not scale or underscan changes */
+ if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
+ continue;
+
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
+ dm_new_con_state, (struct dc_stream_state *)dm_new_crtc_state->stream);
+
+ if (!dm_new_crtc_state->stream)
+ continue;
+
+ status = dc_stream_get_status(dm_new_crtc_state->stream);
+ WARN_ON(!status);
+ WARN_ON(!status->plane_count);
+
+ /*TODO How it works with MPO ?*/
+ if (!dc_commit_planes_to_stream(
+ dm->dc,
+ status->plane_states,
+ status->plane_count,
+ dm_new_crtc_state->stream,
+ dm_state->context))
+ dm_error("%s: Failed to update stream scaling!\n", __func__);
+ }
+
+ for (i = 0; i < new_crtcs_count; i++) {
+ /*
+ * loop to enable interrupts on newly arrived crtc
+ */
+ struct amdgpu_crtc *acrtc = new_crtcs[i];
+
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ if (adev->dm.freesync_module)
+ mod_freesync_notify_mode_change(
+ adev->dm.freesync_module, &dm_new_crtc_state->stream, 1);
+
+ manage_dm_interrupts(adev, acrtc, true);
+ }
+
+ /* update planes when needed per crtc*/
+ for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) {
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ if (dm_new_crtc_state->stream)
+ amdgpu_dm_commit_planes(state, dev, dm, crtc, &wait_for_vblank);
+ }
+
+
+ /*
+ * send vblank event on all events not handled in flip and
+ * mark consumed event for drm_atomic_helper_commit_hw_done
+ */
+ spin_lock_irqsave(&adev->ddev->event_lock, flags);
+ for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+
+ if (new_crtc_state->event)
+ drm_send_event_locked(dev, &new_crtc_state->event->base);
+
+ new_crtc_state->event = NULL;
+ }
+ spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
+
+ /* Signal HW programming completion */
+ drm_atomic_helper_commit_hw_done(state);
+
+ if (wait_for_vblank)
+ drm_atomic_helper_wait_for_flip_done(dev, state);
+
+ drm_atomic_helper_cleanup_planes(dev, state);
+}
+
+
+static int dm_force_atomic_commit(struct drm_connector *connector)
+{
+ int ret = 0;
+ struct drm_device *ddev = connector->dev;
+ struct drm_atomic_state *state = drm_atomic_state_alloc(ddev);
+ struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
+ struct drm_plane *plane = disconnected_acrtc->base.primary;
+ struct drm_connector_state *conn_state;
+ struct drm_crtc_state *crtc_state;
+ struct drm_plane_state *plane_state;
+
+ if (!state)
+ return -ENOMEM;
+
+ state->acquire_ctx = ddev->mode_config.acquire_ctx;
+
+ /* Construct an atomic state to restore previous display setting */
+
+ /*
+ * Attach connectors to drm_atomic_state
+ */
+ conn_state = drm_atomic_get_connector_state(state, connector);
+
+ ret = PTR_ERR_OR_ZERO(conn_state);
+ if (ret)
+ goto err;
+
+ /* Attach crtc to drm_atomic_state*/
+ crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base);
+
+ ret = PTR_ERR_OR_ZERO(crtc_state);
+ if (ret)
+ goto err;
+
+ /* force a restore */
+ crtc_state->mode_changed = true;
+
+ /* Attach plane to drm_atomic_state */
+ plane_state = drm_atomic_get_plane_state(state, plane);
+
+ ret = PTR_ERR_OR_ZERO(plane_state);
+ if (ret)
+ goto err;
+
+
+ /* Call commit internally with the state we just constructed */
+ ret = drm_atomic_commit(state);
+ if (!ret)
+ return 0;
+
+err:
+ DRM_ERROR("Restoring old state failed with %i\n", ret);
+ drm_atomic_state_put(state);
+
+ return ret;
+}
+
+/*
+ * This functions handle all cases when set mode does not come upon hotplug.
+ * This include when the same display is unplugged then plugged back into the
+ * same port and when we are running without usermode desktop manager supprot
+ */
+void dm_restore_drm_connector_state(struct drm_device *dev,
+ struct drm_connector *connector)
+{
+ struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+ struct amdgpu_crtc *disconnected_acrtc;
+ struct dm_crtc_state *acrtc_state;
+
+ if (!aconnector->dc_sink || !connector->state || !connector->encoder)
+ return;
+
+ disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
+ if (!disconnected_acrtc)
+ return;
+
+ acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state);
+ if (!acrtc_state->stream)
+ return;
+
+ /*
+ * If the previous sink is not released and different from the current,
+ * we deduce we are in a state where we can not rely on usermode call
+ * to turn on the display, so we do it here
+ */
+ if (acrtc_state->stream->sink != aconnector->dc_sink)
+ dm_force_atomic_commit(&aconnector->base);
+}
+
+/*`
+ * Grabs all modesetting locks to serialize against any blocking commits,
+ * Waits for completion of all non blocking commits.
+ */
+static int do_aquire_global_lock(struct drm_device *dev,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_commit *commit;
+ long ret;
+
+ /* Adding all modeset locks to aquire_ctx will
+ * ensure that when the framework release it the
+ * extra locks we are locking here will get released to
+ */
+ ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);
+ if (ret)
+ return ret;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ spin_lock(&crtc->commit_lock);
+ commit = list_first_entry_or_null(&crtc->commit_list,
+ struct drm_crtc_commit, commit_entry);
+ if (commit)
+ drm_crtc_commit_get(commit);
+ spin_unlock(&crtc->commit_lock);
+
+ if (!commit)
+ continue;
+
+ /* Make sure all pending HW programming completed and
+ * page flips done
+ */
+ ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ);
+
+ if (ret > 0)
+ ret = wait_for_completion_interruptible_timeout(
+ &commit->flip_done, 10*HZ);
+
+ if (ret == 0)
+ DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done "
+ "timed out\n", crtc->base.id, crtc->name);
+
+ drm_crtc_commit_put(commit);
+ }
+
+ return ret < 0 ? ret : 0;
+}
+
+static int dm_update_crtcs_state(struct dc *dc,
+ struct drm_atomic_state *state,
+ bool enable,
+ bool *lock_and_validation_needed)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ int i;
+ struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
+ struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+ struct dc_stream_state *new_stream;
+ int ret = 0;
+
+ /*TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set */
+ /* update changed items */
+ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ struct amdgpu_crtc *acrtc = NULL;
+ struct amdgpu_dm_connector *aconnector = NULL;
+ struct drm_connector_state *new_con_state = NULL;
+ struct dm_connector_state *dm_conn_state = NULL;
+
+ new_stream = NULL;
+
+ dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+ acrtc = to_amdgpu_crtc(crtc);
+
+ aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc);
+
+ /* TODO This hack should go away */
+ if (aconnector && enable) {
+ // Make sure fake sink is created in plug-in scenario
+ new_con_state = drm_atomic_get_connector_state(state,
+ &aconnector->base);
+
+ if (IS_ERR(new_con_state)) {
+ ret = PTR_ERR_OR_ZERO(new_con_state);
+ break;
+ }
+
+ dm_conn_state = to_dm_connector_state(new_con_state);
+
+ new_stream = create_stream_for_sink(aconnector,
+ &new_crtc_state->mode,
+ dm_conn_state);
+
+ /*
+ * we can have no stream on ACTION_SET if a display
+ * was disconnected during S3, in this case it not and
+ * error, the OS will be updated after detection, and
+ * do the right thing on next atomic commit
+ */
+
+ if (!new_stream) {
+ DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
+ __func__, acrtc->base.base.id);
+ break;
+ }
+ }
+
+ if (enable && dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
+ dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) {
+
+ new_crtc_state->mode_changed = false;
+
+ DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d",
+ new_crtc_state->mode_changed);
+ }
+
+
+ if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
+ goto next_crtc;
+
+ DRM_DEBUG_DRIVER(
+ "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
+ "planes_changed:%d, mode_changed:%d,active_changed:%d,"
+ "connectors_changed:%d\n",
+ acrtc->crtc_id,
+ new_crtc_state->enable,
+ new_crtc_state->active,
+ new_crtc_state->planes_changed,
+ new_crtc_state->mode_changed,
+ new_crtc_state->active_changed,
+ new_crtc_state->connectors_changed);
+
+ /* Remove stream for any changed/disabled CRTC */
+ if (!enable) {
+
+ if (!dm_old_crtc_state->stream)
+ goto next_crtc;
+
+ DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n",
+ crtc->base.id);
+
+ /* i.e. reset mode */
+ if (dc_remove_stream_from_ctx(
+ dc,
+ dm_state->context,
+ dm_old_crtc_state->stream) != DC_OK) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ dc_stream_release(dm_old_crtc_state->stream);
+ dm_new_crtc_state->stream = NULL;
+
+ *lock_and_validation_needed = true;
+
+ } else {/* Add stream for any updated/enabled CRTC */
+ /*
+ * Quick fix to prevent NULL pointer on new_stream when
+ * added MST connectors not found in existing crtc_state in the chained mode
+ * TODO: need to dig out the root cause of that
+ */
+ if (!aconnector || (!aconnector->dc_sink && aconnector->mst_port))
+ goto next_crtc;
+
+ if (modereset_required(new_crtc_state))
+ goto next_crtc;
+
+ if (modeset_required(new_crtc_state, new_stream,
+ dm_old_crtc_state->stream)) {
+
+ WARN_ON(dm_new_crtc_state->stream);
+
+ dm_new_crtc_state->stream = new_stream;
+ dc_stream_retain(new_stream);
+
+ DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n",
+ crtc->base.id);
+
+ if (dc_add_stream_to_ctx(
+ dc,
+ dm_state->context,
+ dm_new_crtc_state->stream) != DC_OK) {
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ *lock_and_validation_needed = true;
+ }
+ }
+
+next_crtc:
+ /* Release extra reference */
+ if (new_stream)
+ dc_stream_release(new_stream);
+ }
+
+ return ret;
+
+fail:
+ if (new_stream)
+ dc_stream_release(new_stream);
+ return ret;
+}
+
+static int dm_update_planes_state(struct dc *dc,
+ struct drm_atomic_state *state,
+ bool enable,
+ bool *lock_and_validation_needed)
+{
+ struct drm_crtc *new_plane_crtc, *old_plane_crtc;
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ struct drm_plane *plane;
+ struct drm_plane_state *old_plane_state, *new_plane_state;
+ struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state;
+ struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+ struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state;
+ int i ;
+ /* TODO return page_flip_needed() function */
+ bool pflip_needed = !state->allow_modeset;
+ int ret = 0;
+
+ if (pflip_needed)
+ return ret;
+
+ /* Add new planes */
+ for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+ new_plane_crtc = new_plane_state->crtc;
+ old_plane_crtc = old_plane_state->crtc;
+ dm_new_plane_state = to_dm_plane_state(new_plane_state);
+ dm_old_plane_state = to_dm_plane_state(old_plane_state);
+
+ /*TODO Implement atomic check for cursor plane */
+ if (plane->type == DRM_PLANE_TYPE_CURSOR)
+ continue;
+
+ /* Remove any changed/removed planes */
+ if (!enable) {
+
+ if (!old_plane_crtc)
+ continue;
+
+ old_crtc_state = drm_atomic_get_old_crtc_state(
+ state, old_plane_crtc);
+ dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
+
+ if (!dm_old_crtc_state->stream)
+ continue;
+
+ DRM_DEBUG_DRIVER("Disabling DRM plane: %d on DRM crtc %d\n",
+ plane->base.id, old_plane_crtc->base.id);
+
+ if (!dc_remove_plane_from_context(
+ dc,
+ dm_old_crtc_state->stream,
+ dm_old_plane_state->dc_state,
+ dm_state->context)) {
+
+ ret = EINVAL;
+ return ret;
+ }
+
+
+ dc_plane_state_release(dm_old_plane_state->dc_state);
+ dm_new_plane_state->dc_state = NULL;
+
+ *lock_and_validation_needed = true;
+
+ } else { /* Add new planes */
+
+ if (drm_atomic_plane_disabling(plane->state, new_plane_state))
+ continue;
+
+ if (!new_plane_crtc)
+ continue;
+
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc);
+ dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
+
+ if (!dm_new_crtc_state->stream)
+ continue;
+
+
+ WARN_ON(dm_new_plane_state->dc_state);
+
+ dm_new_plane_state->dc_state = dc_create_plane_state(dc);
+
+ DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n",
+ plane->base.id, new_plane_crtc->base.id);
+
+ if (!dm_new_plane_state->dc_state) {
+ ret = -EINVAL;
+ return ret;
+ }
+
+ ret = fill_plane_attributes(
+ new_plane_crtc->dev->dev_private,
+ dm_new_plane_state->dc_state,
+ new_plane_state,
+ new_crtc_state,
+ false);
+ if (ret)
+ return ret;
+
+
+ if (!dc_add_plane_to_context(
+ dc,
+ dm_new_crtc_state->stream,
+ dm_new_plane_state->dc_state,
+ dm_state->context)) {
+
+ ret = -EINVAL;
+ return ret;
+ }
+
+ *lock_and_validation_needed = true;
+ }
+ }
+
+
+ return ret;
+}
+
+static int amdgpu_dm_atomic_check(struct drm_device *dev,
+ struct drm_atomic_state *state)
+{
+ int i;
+ int ret;
+ struct amdgpu_device *adev = dev->dev_private;
+ struct dc *dc = adev->dm.dc;
+ struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
+ struct drm_connector *connector;
+ struct drm_connector_state *old_con_state, *new_con_state;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+
+ /*
+ * This bool will be set for true for any modeset/reset
+ * or plane update which implies non fast surface update.
+ */
+ bool lock_and_validation_needed = false;
+
+ ret = drm_atomic_helper_check_modeset(dev, state);
+ if (ret)
+ goto fail;
+
+ /*
+ * legacy_cursor_update should be made false for SoC's having
+ * a dedicated hardware plane for cursor in amdgpu_dm_atomic_commit(),
+ * otherwise for software cursor plane,
+ * we should not add it to list of affected planes.
+ */
+ if (state->legacy_cursor_update) {
+ for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+ if (new_crtc_state->color_mgmt_changed) {
+ ret = drm_atomic_add_affected_planes(state, crtc);
+ if (ret)
+ goto fail;
+ }
+ }
+ } else {
+ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
+ !new_crtc_state->color_mgmt_changed)
+ continue;
+
+ if (!new_crtc_state->enable)
+ continue;
+
+ ret = drm_atomic_add_affected_connectors(state, crtc);
+ if (ret)
+ return ret;
+
+ ret = drm_atomic_add_affected_planes(state, crtc);
+ if (ret)
+ goto fail;
+ }
+ }
+
+ dm_state->context = dc_create_state();
+ ASSERT(dm_state->context);
+ dc_resource_state_copy_construct_current(dc, dm_state->context);
+
+ /* Remove exiting planes if they are modified */
+ ret = dm_update_planes_state(dc, state, false, &lock_and_validation_needed);
+ if (ret) {
+ goto fail;
+ }
+
+ /* Disable all crtcs which require disable */
+ ret = dm_update_crtcs_state(dc, state, false, &lock_and_validation_needed);
+ if (ret) {
+ goto fail;
+ }
+
+ /* Enable all crtcs which require enable */
+ ret = dm_update_crtcs_state(dc, state, true, &lock_and_validation_needed);
+ if (ret) {
+ goto fail;
+ }
+
+ /* Add new/modified planes */
+ ret = dm_update_planes_state(dc, state, true, &lock_and_validation_needed);
+ if (ret) {
+ goto fail;
+ }
+
+ /* Run this here since we want to validate the streams we created */
+ ret = drm_atomic_helper_check_planes(dev, state);
+ if (ret)
+ goto fail;
+
+ /* Check scaling and underscan changes*/
+ /*TODO Removed scaling changes validation due to inability to commit
+ * new stream into context w\o causing full reset. Need to
+ * decide how to handle.
+ */
+ for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+ struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
+ struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+
+ /* Skip any modesets/resets */
+ if (!acrtc || drm_atomic_crtc_needs_modeset(
+ drm_atomic_get_new_crtc_state(state, &acrtc->base)))
+ continue;
+
+ /* Skip any thing not scale or underscan changes */
+ if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
+ continue;
+
+ lock_and_validation_needed = true;
+ }
+
+ /*
+ * For full updates case when
+ * removing/adding/updating streams on once CRTC while flipping
+ * on another CRTC,
+ * acquiring global lock will guarantee that any such full
+ * update commit
+ * will wait for completion of any outstanding flip using DRMs
+ * synchronization events.
+ */
+
+ if (lock_and_validation_needed) {
+
+ ret = do_aquire_global_lock(dev, state);
+ if (ret)
+ goto fail;
+
+ if (dc_validate_global_state(dc, dm_state->context) != DC_OK) {
+ ret = -EINVAL;
+ goto fail;
+ }
+ }
+
+ /* Must be success */
+ WARN_ON(ret);
+ return ret;
+
+fail:
+ if (ret == -EDEADLK)
+ DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n");
+ else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS)
+ DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n");
+ else
+ DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
+
+ return ret;
+}
+
+static bool is_dp_capable_without_timing_msa(struct dc *dc,
+ struct amdgpu_dm_connector *amdgpu_dm_connector)
+{
+ uint8_t dpcd_data;
+ bool capable = false;
+
+ if (amdgpu_dm_connector->dc_link &&
+ dm_helpers_dp_read_dpcd(
+ NULL,
+ amdgpu_dm_connector->dc_link,
+ DP_DOWN_STREAM_PORT_COUNT,
+ &dpcd_data,
+ sizeof(dpcd_data))) {
+ capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false;
+ }
+
+ return capable;
+}
+void amdgpu_dm_add_sink_to_freesync_module(struct drm_connector *connector,
+ struct edid *edid)
+{
+ int i;
+ uint64_t val_capable;
+ bool edid_check_required;
+ struct detailed_timing *timing;
+ struct detailed_non_pixel *data;
+ struct detailed_data_monitor_range *range;
+ struct amdgpu_dm_connector *amdgpu_dm_connector =
+ to_amdgpu_dm_connector(connector);
+
+ struct drm_device *dev = connector->dev;
+ struct amdgpu_device *adev = dev->dev_private;
+
+ edid_check_required = false;
+ if (!amdgpu_dm_connector->dc_sink) {
+ DRM_ERROR("dc_sink NULL, could not add free_sync module.\n");
+ return;
+ }
+ if (!adev->dm.freesync_module)
+ return;
+ /*
+ * if edid non zero restrict freesync only for dp and edp
+ */
+ if (edid) {
+ if (amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT
+ || amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_EDP) {
+ edid_check_required = is_dp_capable_without_timing_msa(
+ adev->dm.dc,
+ amdgpu_dm_connector);
+ }
+ }
+ val_capable = 0;
+ if (edid_check_required == true && (edid->version > 1 ||
+ (edid->version == 1 && edid->revision > 1))) {
+ for (i = 0; i < 4; i++) {
+
+ timing = &edid->detailed_timings[i];
+ data = &timing->data.other_data;
+ range = &data->data.range;
+ /*
+ * Check if monitor has continuous frequency mode
+ */
+ if (data->type != EDID_DETAIL_MONITOR_RANGE)
+ continue;
+ /*
+ * Check for flag range limits only. If flag == 1 then
+ * no additional timing information provided.
+ * Default GTF, GTF Secondary curve and CVT are not
+ * supported
+ */
+ if (range->flags != 1)
+ continue;
+
+ amdgpu_dm_connector->min_vfreq = range->min_vfreq;
+ amdgpu_dm_connector->max_vfreq = range->max_vfreq;
+ amdgpu_dm_connector->pixel_clock_mhz =
+ range->pixel_clock_mhz * 10;
+ break;
+ }
+
+ if (amdgpu_dm_connector->max_vfreq -
+ amdgpu_dm_connector->min_vfreq > 10) {
+ amdgpu_dm_connector->caps.supported = true;
+ amdgpu_dm_connector->caps.min_refresh_in_micro_hz =
+ amdgpu_dm_connector->min_vfreq * 1000000;
+ amdgpu_dm_connector->caps.max_refresh_in_micro_hz =
+ amdgpu_dm_connector->max_vfreq * 1000000;
+ val_capable = 1;
+ }
+ }
+
+ /*
+ * TODO figure out how to notify user-mode or DRM of freesync caps
+ * once we figure out how to deal with freesync in an upstreamable
+ * fashion
+ */
+
+}
+
+void amdgpu_dm_remove_sink_from_freesync_module(struct drm_connector *connector)
+{
+ /*
+ * TODO fill in once we figure out how to deal with freesync in
+ * an upstreamable fashion
+ */
+}
projects / linux-block.git / commitdiff