From: James Zhu Date: Mon, 15 Aug 2022 20:55:02 +0000 (-0400) Subject: drm/amdgpu: support partition drm devices X-Git-Tag: v6.5-rc1~28^2~12^2~334 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=2c1c7ba457d4ecf475c0e220ac5359971355c6eb;p=linux-block.git drm/amdgpu: support partition drm devices Support partition drm devices on GC_HWIP IP_VERSION(9, 4, 3). This is a temporary solution and will be superceded. Signed-off-by: Christian König Signed-off-by: James Zhu Reviewed-and-tested-by: Philip Yang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index c2feaf2fd070..eb2fb968e3af 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -107,6 +107,7 @@ #include "amdgpu_fdinfo.h" #include "amdgpu_mca.h" #include "amdgpu_ras.h" +#include "amdgpu_xcp.h" #define MAX_GPU_INSTANCE 64 diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 0c6f983fb2ad..4d9c535bcb0c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -6065,6 +6065,7 @@ void amdgpu_device_halt(struct amdgpu_device *adev) struct pci_dev *pdev = adev->pdev; struct drm_device *ddev = adev_to_drm(adev); + amdgpu_xcp_dev_unplug(adev); drm_dev_unplug(ddev); amdgpu_irq_disable_all(adev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index aa466a9eb956..7300df2a342c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2185,6 +2185,10 @@ retry_init: goto err_pci; } + ret = amdgpu_xcp_dev_register(adev, ent); + if (ret) + goto err_pci; + /* * 1. don't init fbdev on hw without DCE * 2. don't init fbdev if there are no connectors @@ -2257,6 +2261,7 @@ amdgpu_pci_remove(struct pci_dev *pdev) struct drm_device *dev = pci_get_drvdata(pdev); struct amdgpu_device *adev = drm_to_adev(dev); + amdgpu_xcp_dev_unplug(adev); drm_dev_unplug(dev); if (adev->pm.rpm_mode != AMDGPU_RUNPM_NONE) { @@ -2840,6 +2845,33 @@ static const struct drm_driver amdgpu_kms_driver = { .patchlevel = KMS_DRIVER_PATCHLEVEL, }; +const struct drm_driver amdgpu_partition_driver = { + .driver_features = + DRIVER_GEM | DRIVER_RENDER | DRIVER_SYNCOBJ | + DRIVER_SYNCOBJ_TIMELINE, + .open = amdgpu_driver_open_kms, + .postclose = amdgpu_driver_postclose_kms, + .lastclose = amdgpu_driver_lastclose_kms, + .ioctls = amdgpu_ioctls_kms, + .num_ioctls = ARRAY_SIZE(amdgpu_ioctls_kms), + .dumb_create = amdgpu_mode_dumb_create, + .dumb_map_offset = amdgpu_mode_dumb_mmap, + .fops = &amdgpu_driver_kms_fops, + .release = &amdgpu_driver_release_kms, + + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_prime_import = amdgpu_gem_prime_import, + .gem_prime_mmap = drm_gem_prime_mmap, + + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = KMS_DRIVER_MAJOR, + .minor = KMS_DRIVER_MINOR, + .patchlevel = KMS_DRIVER_PATCHLEVEL, +}; + static struct pci_error_handlers amdgpu_pci_err_handler = { .error_detected = amdgpu_pci_error_detected, .mmio_enabled = amdgpu_pci_mmio_enabled, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.h index 8178323e4bef..5bc2cb661af7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.h @@ -42,6 +42,8 @@ #define DRIVER_DESC "AMD GPU" #define DRIVER_DATE "20150101" +extern const struct drm_driver amdgpu_partition_driver; + long amdgpu_drm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c index bca226cc4e0b..8b28b18e4291 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c @@ -22,6 +22,9 @@ */ #include "amdgpu.h" #include "amdgpu_xcp.h" +#include "amdgpu_drv.h" + +#include static int __amdgpu_xcp_run(struct amdgpu_xcp_mgr *xcp_mgr, struct amdgpu_xcp_ip *xcp_ip, int xcp_state) @@ -217,6 +220,31 @@ int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags) return mode; } +static int amdgpu_xcp_dev_alloc(struct amdgpu_device *adev) +{ + struct drm_device *p_ddev; + struct pci_dev *pdev; + struct drm_device *ddev; + int i; + + pdev = adev->pdev; + ddev = adev_to_drm(adev); + + for (i = 0; i < MAX_XCP; i++) { + p_ddev = drm_dev_alloc(&amdgpu_partition_driver, + &pci_upstream_bridge(pdev)->dev); + if (IS_ERR(p_ddev)) + return PTR_ERR(p_ddev); + + /* Redirect all IOCTLs to the primary device */ + p_ddev->render->dev = ddev; + p_ddev->vma_offset_manager = ddev->vma_offset_manager; + adev->xcp_mgr->xcp[i].ddev = p_ddev; + } + + return 0; +} + int amdgpu_xcp_mgr_init(struct amdgpu_device *adev, int init_mode, int init_num_xcps, struct amdgpu_xcp_mgr_funcs *xcp_funcs) @@ -242,7 +270,7 @@ int amdgpu_xcp_mgr_init(struct amdgpu_device *adev, int init_mode, adev->xcp_mgr = xcp_mgr; - return 0; + return amdgpu_xcp_dev_alloc(adev); } int amdgpu_xcp_get_partition(struct amdgpu_xcp_mgr *xcp_mgr, @@ -278,3 +306,32 @@ int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp, return 0; } + +int amdgpu_xcp_dev_register(struct amdgpu_device *adev, + const struct pci_device_id *ent) +{ + int i, ret; + + if (!adev->xcp_mgr) + return 0; + + for (i = 0; i < MAX_XCP; i++) { + ret = drm_dev_register(adev->xcp_mgr->xcp[i].ddev, ent->driver_data); + if (ret) + return ret; + } + + return 0; +} + +void amdgpu_xcp_dev_unplug(struct amdgpu_device *adev) +{ + int i; + + if (!adev->xcp_mgr) + return; + + for (i = 0; i < MAX_XCP; i++) + drm_dev_unplug(adev->xcp_mgr->xcp[i].ddev); +} + diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h index e1319b887bf3..dad0b98d1ae7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h @@ -70,6 +70,7 @@ struct amdgpu_xcp { uint8_t id; uint8_t mem_id; bool valid; + struct drm_device *ddev; }; struct amdgpu_xcp_mgr { @@ -115,6 +116,10 @@ int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp, enum AMDGPU_XCP_IP_BLOCK ip, uint32_t *inst_mask); +int amdgpu_xcp_dev_register(struct amdgpu_device *adev, + const struct pci_device_id *ent); +void amdgpu_xcp_dev_unplug(struct amdgpu_device *adev); + static inline int amdgpu_xcp_get_num_xcp(struct amdgpu_xcp_mgr *xcp_mgr) { if (!xcp_mgr)