2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
24 * Authors: Dave Airlie
28 #include <linux/kthread.h>
29 #include <linux/console.h>
30 #include <linux/slab.h>
31 #include <linux/debugfs.h>
33 #include <drm/drm_crtc_helper.h>
34 #include <drm/amdgpu_drm.h>
35 #include <linux/vgaarb.h>
36 #include <linux/vga_switcheroo.h>
37 #include <linux/efi.h>
39 #include "amdgpu_trace.h"
40 #include "amdgpu_i2c.h"
42 #include "amdgpu_atombios.h"
44 #ifdef CONFIG_DRM_AMDGPU_SI
47 #ifdef CONFIG_DRM_AMDGPU_CIK
51 #include "bif/bif_4_1_d.h"
52 #include <linux/pci.h>
53 #include <linux/firmware.h>
55 static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev);
56 static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev);
58 static const char *amdgpu_asic_name[] = {
80 bool amdgpu_device_is_px(struct drm_device *dev)
82 struct amdgpu_device *adev = dev->dev_private;
84 if (adev->flags & AMD_IS_PX)
90 * MMIO register access helper functions.
92 uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
97 if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) {
98 BUG_ON(in_interrupt());
99 return amdgpu_virt_kiq_rreg(adev, reg);
102 if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
103 ret = readl(((void __iomem *)adev->rmmio) + (reg * 4));
107 spin_lock_irqsave(&adev->mmio_idx_lock, flags);
108 writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4));
109 ret = readl(((void __iomem *)adev->rmmio) + (mmMM_DATA * 4));
110 spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
112 trace_amdgpu_mm_rreg(adev->pdev->device, reg, ret);
116 void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
119 trace_amdgpu_mm_wreg(adev->pdev->device, reg, v);
121 if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) {
122 BUG_ON(in_interrupt());
123 return amdgpu_virt_kiq_wreg(adev, reg, v);
126 if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
127 writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
131 spin_lock_irqsave(&adev->mmio_idx_lock, flags);
132 writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4));
133 writel(v, ((void __iomem *)adev->rmmio) + (mmMM_DATA * 4));
134 spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
138 u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg)
140 if ((reg * 4) < adev->rio_mem_size)
141 return ioread32(adev->rio_mem + (reg * 4));
143 iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
144 return ioread32(adev->rio_mem + (mmMM_DATA * 4));
148 void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
151 if ((reg * 4) < adev->rio_mem_size)
152 iowrite32(v, adev->rio_mem + (reg * 4));
154 iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
155 iowrite32(v, adev->rio_mem + (mmMM_DATA * 4));
160 * amdgpu_mm_rdoorbell - read a doorbell dword
162 * @adev: amdgpu_device pointer
163 * @index: doorbell index
165 * Returns the value in the doorbell aperture at the
166 * requested doorbell index (CIK).
168 u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
170 if (index < adev->doorbell.num_doorbells) {
171 return readl(adev->doorbell.ptr + index);
173 DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
179 * amdgpu_mm_wdoorbell - write a doorbell dword
181 * @adev: amdgpu_device pointer
182 * @index: doorbell index
185 * Writes @v to the doorbell aperture at the
186 * requested doorbell index (CIK).
188 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
190 if (index < adev->doorbell.num_doorbells) {
191 writel(v, adev->doorbell.ptr + index);
193 DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
198 * amdgpu_invalid_rreg - dummy reg read function
200 * @adev: amdgpu device pointer
201 * @reg: offset of register
203 * Dummy register read function. Used for register blocks
204 * that certain asics don't have (all asics).
205 * Returns the value in the register.
207 static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg)
209 DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
215 * amdgpu_invalid_wreg - dummy reg write function
217 * @adev: amdgpu device pointer
218 * @reg: offset of register
219 * @v: value to write to the register
221 * Dummy register read function. Used for register blocks
222 * that certain asics don't have (all asics).
224 static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
226 DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
232 * amdgpu_block_invalid_rreg - dummy reg read function
234 * @adev: amdgpu device pointer
235 * @block: offset of instance
236 * @reg: offset of register
238 * Dummy register read function. Used for register blocks
239 * that certain asics don't have (all asics).
240 * Returns the value in the register.
242 static uint32_t amdgpu_block_invalid_rreg(struct amdgpu_device *adev,
243 uint32_t block, uint32_t reg)
245 DRM_ERROR("Invalid callback to read register 0x%04X in block 0x%04X\n",
252 * amdgpu_block_invalid_wreg - dummy reg write function
254 * @adev: amdgpu device pointer
255 * @block: offset of instance
256 * @reg: offset of register
257 * @v: value to write to the register
259 * Dummy register read function. Used for register blocks
260 * that certain asics don't have (all asics).
262 static void amdgpu_block_invalid_wreg(struct amdgpu_device *adev,
264 uint32_t reg, uint32_t v)
266 DRM_ERROR("Invalid block callback to write register 0x%04X in block 0x%04X with 0x%08X\n",
271 static int amdgpu_vram_scratch_init(struct amdgpu_device *adev)
275 if (adev->vram_scratch.robj == NULL) {
276 r = amdgpu_bo_create(adev, AMDGPU_GPU_PAGE_SIZE,
277 PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM,
278 AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
279 AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
280 NULL, NULL, &adev->vram_scratch.robj);
286 r = amdgpu_bo_reserve(adev->vram_scratch.robj, false);
287 if (unlikely(r != 0))
289 r = amdgpu_bo_pin(adev->vram_scratch.robj,
290 AMDGPU_GEM_DOMAIN_VRAM, &adev->vram_scratch.gpu_addr);
292 amdgpu_bo_unreserve(adev->vram_scratch.robj);
295 r = amdgpu_bo_kmap(adev->vram_scratch.robj,
296 (void **)&adev->vram_scratch.ptr);
298 amdgpu_bo_unpin(adev->vram_scratch.robj);
299 amdgpu_bo_unreserve(adev->vram_scratch.robj);
304 static void amdgpu_vram_scratch_fini(struct amdgpu_device *adev)
308 if (adev->vram_scratch.robj == NULL) {
311 r = amdgpu_bo_reserve(adev->vram_scratch.robj, false);
312 if (likely(r == 0)) {
313 amdgpu_bo_kunmap(adev->vram_scratch.robj);
314 amdgpu_bo_unpin(adev->vram_scratch.robj);
315 amdgpu_bo_unreserve(adev->vram_scratch.robj);
317 amdgpu_bo_unref(&adev->vram_scratch.robj);
321 * amdgpu_program_register_sequence - program an array of registers.
323 * @adev: amdgpu_device pointer
324 * @registers: pointer to the register array
325 * @array_size: size of the register array
327 * Programs an array or registers with and and or masks.
328 * This is a helper for setting golden registers.
330 void amdgpu_program_register_sequence(struct amdgpu_device *adev,
331 const u32 *registers,
332 const u32 array_size)
334 u32 tmp, reg, and_mask, or_mask;
340 for (i = 0; i < array_size; i +=3) {
341 reg = registers[i + 0];
342 and_mask = registers[i + 1];
343 or_mask = registers[i + 2];
345 if (and_mask == 0xffffffff) {
356 void amdgpu_pci_config_reset(struct amdgpu_device *adev)
358 pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA);
362 * GPU doorbell aperture helpers function.
365 * amdgpu_doorbell_init - Init doorbell driver information.
367 * @adev: amdgpu_device pointer
369 * Init doorbell driver information (CIK)
370 * Returns 0 on success, error on failure.
372 static int amdgpu_doorbell_init(struct amdgpu_device *adev)
374 /* doorbell bar mapping */
375 adev->doorbell.base = pci_resource_start(adev->pdev, 2);
376 adev->doorbell.size = pci_resource_len(adev->pdev, 2);
378 adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),
379 AMDGPU_DOORBELL_MAX_ASSIGNMENT+1);
380 if (adev->doorbell.num_doorbells == 0)
383 adev->doorbell.ptr = ioremap(adev->doorbell.base, adev->doorbell.num_doorbells * sizeof(u32));
384 if (adev->doorbell.ptr == NULL) {
387 DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)adev->doorbell.base);
388 DRM_INFO("doorbell mmio size: %u\n", (unsigned)adev->doorbell.size);
394 * amdgpu_doorbell_fini - Tear down doorbell driver information.
396 * @adev: amdgpu_device pointer
398 * Tear down doorbell driver information (CIK)
400 static void amdgpu_doorbell_fini(struct amdgpu_device *adev)
402 iounmap(adev->doorbell.ptr);
403 adev->doorbell.ptr = NULL;
407 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
410 * @adev: amdgpu_device pointer
411 * @aperture_base: output returning doorbell aperture base physical address
412 * @aperture_size: output returning doorbell aperture size in bytes
413 * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
415 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
416 * takes doorbells required for its own rings and reports the setup to amdkfd.
417 * amdgpu reserved doorbells are at the start of the doorbell aperture.
419 void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
420 phys_addr_t *aperture_base,
421 size_t *aperture_size,
422 size_t *start_offset)
425 * The first num_doorbells are used by amdgpu.
426 * amdkfd takes whatever's left in the aperture.
428 if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {
429 *aperture_base = adev->doorbell.base;
430 *aperture_size = adev->doorbell.size;
431 *start_offset = adev->doorbell.num_doorbells * sizeof(u32);
441 * Writeback is the the method by which the the GPU updates special pages
442 * in memory with the status of certain GPU events (fences, ring pointers,
447 * amdgpu_wb_fini - Disable Writeback and free memory
449 * @adev: amdgpu_device pointer
451 * Disables Writeback and frees the Writeback memory (all asics).
452 * Used at driver shutdown.
454 static void amdgpu_wb_fini(struct amdgpu_device *adev)
456 if (adev->wb.wb_obj) {
457 amdgpu_bo_free_kernel(&adev->wb.wb_obj,
459 (void **)&adev->wb.wb);
460 adev->wb.wb_obj = NULL;
465 * amdgpu_wb_init- Init Writeback driver info and allocate memory
467 * @adev: amdgpu_device pointer
469 * Disables Writeback and frees the Writeback memory (all asics).
470 * Used at driver startup.
471 * Returns 0 on success or an -error on failure.
473 static int amdgpu_wb_init(struct amdgpu_device *adev)
477 if (adev->wb.wb_obj == NULL) {
478 r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t),
479 PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
480 &adev->wb.wb_obj, &adev->wb.gpu_addr,
481 (void **)&adev->wb.wb);
483 dev_warn(adev->dev, "(%d) create WB bo failed\n", r);
487 adev->wb.num_wb = AMDGPU_MAX_WB;
488 memset(&adev->wb.used, 0, sizeof(adev->wb.used));
490 /* clear wb memory */
491 memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t));
498 * amdgpu_wb_get - Allocate a wb entry
500 * @adev: amdgpu_device pointer
503 * Allocate a wb slot for use by the driver (all asics).
504 * Returns 0 on success or -EINVAL on failure.
506 int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb)
508 unsigned long offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb);
509 if (offset < adev->wb.num_wb) {
510 __set_bit(offset, adev->wb.used);
519 * amdgpu_wb_free - Free a wb entry
521 * @adev: amdgpu_device pointer
524 * Free a wb slot allocated for use by the driver (all asics)
526 void amdgpu_wb_free(struct amdgpu_device *adev, u32 wb)
528 if (wb < adev->wb.num_wb)
529 __clear_bit(wb, adev->wb.used);
533 * amdgpu_vram_location - try to find VRAM location
534 * @adev: amdgpu device structure holding all necessary informations
535 * @mc: memory controller structure holding memory informations
536 * @base: base address at which to put VRAM
538 * Function will place try to place VRAM at base address provided
539 * as parameter (which is so far either PCI aperture address or
540 * for IGP TOM base address).
542 * If there is not enough space to fit the unvisible VRAM in the 32bits
543 * address space then we limit the VRAM size to the aperture.
545 * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
546 * this shouldn't be a problem as we are using the PCI aperture as a reference.
547 * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
550 * Note: we use mc_vram_size as on some board we need to program the mc to
551 * cover the whole aperture even if VRAM size is inferior to aperture size
552 * Novell bug 204882 + along with lots of ubuntu ones
554 * Note: when limiting vram it's safe to overwritte real_vram_size because
555 * we are not in case where real_vram_size is inferior to mc_vram_size (ie
556 * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu
559 * Note: IGP TOM addr should be the same as the aperture addr, we don't
560 * explicitly check for that thought.
562 * FIXME: when reducing VRAM size align new size on power of 2.
564 void amdgpu_vram_location(struct amdgpu_device *adev, struct amdgpu_mc *mc, u64 base)
566 uint64_t limit = (uint64_t)amdgpu_vram_limit << 20;
568 mc->vram_start = base;
569 if (mc->mc_vram_size > (adev->mc.mc_mask - base + 1)) {
570 dev_warn(adev->dev, "limiting VRAM to PCI aperture size\n");
571 mc->real_vram_size = mc->aper_size;
572 mc->mc_vram_size = mc->aper_size;
574 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
575 if (limit && limit < mc->real_vram_size)
576 mc->real_vram_size = limit;
577 dev_info(adev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
578 mc->mc_vram_size >> 20, mc->vram_start,
579 mc->vram_end, mc->real_vram_size >> 20);
583 * amdgpu_gtt_location - try to find GTT location
584 * @adev: amdgpu device structure holding all necessary informations
585 * @mc: memory controller structure holding memory informations
587 * Function will place try to place GTT before or after VRAM.
589 * If GTT size is bigger than space left then we ajust GTT size.
590 * Thus function will never fails.
592 * FIXME: when reducing GTT size align new size on power of 2.
594 void amdgpu_gtt_location(struct amdgpu_device *adev, struct amdgpu_mc *mc)
596 u64 size_af, size_bf;
598 size_af = ((adev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
599 size_bf = mc->vram_start & ~mc->gtt_base_align;
600 if (size_bf > size_af) {
601 if (mc->gtt_size > size_bf) {
602 dev_warn(adev->dev, "limiting GTT\n");
603 mc->gtt_size = size_bf;
605 mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
607 if (mc->gtt_size > size_af) {
608 dev_warn(adev->dev, "limiting GTT\n");
609 mc->gtt_size = size_af;
611 mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
613 mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
614 dev_info(adev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n",
615 mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
619 * GPU helpers function.
622 * amdgpu_need_post - check if the hw need post or not
624 * @adev: amdgpu_device pointer
626 * Check if the asic has been initialized (all asics) at driver startup
627 * or post is needed if hw reset is performed.
628 * Returns true if need or false if not.
630 bool amdgpu_need_post(struct amdgpu_device *adev)
634 if (adev->has_hw_reset) {
635 adev->has_hw_reset = false;
638 /* then check MEM_SIZE, in case the crtcs are off */
639 reg = RREG32(mmCONFIG_MEMSIZE);
648 static bool amdgpu_vpost_needed(struct amdgpu_device *adev)
650 if (amdgpu_sriov_vf(adev))
653 if (amdgpu_passthrough(adev)) {
654 /* for FIJI: In whole GPU pass-through virtualization case, after VM reboot
655 * some old smc fw still need driver do vPost otherwise gpu hang, while
656 * those smc fw version above 22.15 doesn't have this flaw, so we force
657 * vpost executed for smc version below 22.15
659 if (adev->asic_type == CHIP_FIJI) {
662 err = request_firmware(&adev->pm.fw, "amdgpu/fiji_smc.bin", adev->dev);
663 /* force vPost if error occured */
667 fw_ver = *((uint32_t *)adev->pm.fw->data + 69);
668 if (fw_ver < 0x00160e00)
672 return amdgpu_need_post(adev);
676 * amdgpu_dummy_page_init - init dummy page used by the driver
678 * @adev: amdgpu_device pointer
680 * Allocate the dummy page used by the driver (all asics).
681 * This dummy page is used by the driver as a filler for gart entries
682 * when pages are taken out of the GART
683 * Returns 0 on sucess, -ENOMEM on failure.
685 int amdgpu_dummy_page_init(struct amdgpu_device *adev)
687 if (adev->dummy_page.page)
689 adev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
690 if (adev->dummy_page.page == NULL)
692 adev->dummy_page.addr = pci_map_page(adev->pdev, adev->dummy_page.page,
693 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
694 if (pci_dma_mapping_error(adev->pdev, adev->dummy_page.addr)) {
695 dev_err(&adev->pdev->dev, "Failed to DMA MAP the dummy page\n");
696 __free_page(adev->dummy_page.page);
697 adev->dummy_page.page = NULL;
704 * amdgpu_dummy_page_fini - free dummy page used by the driver
706 * @adev: amdgpu_device pointer
708 * Frees the dummy page used by the driver (all asics).
710 void amdgpu_dummy_page_fini(struct amdgpu_device *adev)
712 if (adev->dummy_page.page == NULL)
714 pci_unmap_page(adev->pdev, adev->dummy_page.addr,
715 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
716 __free_page(adev->dummy_page.page);
717 adev->dummy_page.page = NULL;
721 /* ATOM accessor methods */
723 * ATOM is an interpreted byte code stored in tables in the vbios. The
724 * driver registers callbacks to access registers and the interpreter
725 * in the driver parses the tables and executes then to program specific
726 * actions (set display modes, asic init, etc.). See amdgpu_atombios.c,
727 * atombios.h, and atom.c
731 * cail_pll_read - read PLL register
733 * @info: atom card_info pointer
734 * @reg: PLL register offset
736 * Provides a PLL register accessor for the atom interpreter (r4xx+).
737 * Returns the value of the PLL register.
739 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
745 * cail_pll_write - write PLL register
747 * @info: atom card_info pointer
748 * @reg: PLL register offset
749 * @val: value to write to the pll register
751 * Provides a PLL register accessor for the atom interpreter (r4xx+).
753 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
759 * cail_mc_read - read MC (Memory Controller) register
761 * @info: atom card_info pointer
762 * @reg: MC register offset
764 * Provides an MC register accessor for the atom interpreter (r4xx+).
765 * Returns the value of the MC register.
767 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
773 * cail_mc_write - write MC (Memory Controller) register
775 * @info: atom card_info pointer
776 * @reg: MC register offset
777 * @val: value to write to the pll register
779 * Provides a MC register accessor for the atom interpreter (r4xx+).
781 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
787 * cail_reg_write - write MMIO register
789 * @info: atom card_info pointer
790 * @reg: MMIO register offset
791 * @val: value to write to the pll register
793 * Provides a MMIO register accessor for the atom interpreter (r4xx+).
795 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
797 struct amdgpu_device *adev = info->dev->dev_private;
803 * cail_reg_read - read MMIO register
805 * @info: atom card_info pointer
806 * @reg: MMIO register offset
808 * Provides an MMIO register accessor for the atom interpreter (r4xx+).
809 * Returns the value of the MMIO register.
811 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
813 struct amdgpu_device *adev = info->dev->dev_private;
821 * cail_ioreg_write - write IO register
823 * @info: atom card_info pointer
824 * @reg: IO register offset
825 * @val: value to write to the pll register
827 * Provides a IO register accessor for the atom interpreter (r4xx+).
829 static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
831 struct amdgpu_device *adev = info->dev->dev_private;
837 * cail_ioreg_read - read IO register
839 * @info: atom card_info pointer
840 * @reg: IO register offset
842 * Provides an IO register accessor for the atom interpreter (r4xx+).
843 * Returns the value of the IO register.
845 static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
847 struct amdgpu_device *adev = info->dev->dev_private;
855 * amdgpu_atombios_fini - free the driver info and callbacks for atombios
857 * @adev: amdgpu_device pointer
859 * Frees the driver info and register access callbacks for the ATOM
860 * interpreter (r4xx+).
861 * Called at driver shutdown.
863 static void amdgpu_atombios_fini(struct amdgpu_device *adev)
865 if (adev->mode_info.atom_context) {
866 kfree(adev->mode_info.atom_context->scratch);
867 kfree(adev->mode_info.atom_context->iio);
869 kfree(adev->mode_info.atom_context);
870 adev->mode_info.atom_context = NULL;
871 kfree(adev->mode_info.atom_card_info);
872 adev->mode_info.atom_card_info = NULL;
876 * amdgpu_atombios_init - init the driver info and callbacks for atombios
878 * @adev: amdgpu_device pointer
880 * Initializes the driver info and register access callbacks for the
881 * ATOM interpreter (r4xx+).
882 * Returns 0 on sucess, -ENOMEM on failure.
883 * Called at driver startup.
885 static int amdgpu_atombios_init(struct amdgpu_device *adev)
887 struct card_info *atom_card_info =
888 kzalloc(sizeof(struct card_info), GFP_KERNEL);
893 adev->mode_info.atom_card_info = atom_card_info;
894 atom_card_info->dev = adev->ddev;
895 atom_card_info->reg_read = cail_reg_read;
896 atom_card_info->reg_write = cail_reg_write;
897 /* needed for iio ops */
899 atom_card_info->ioreg_read = cail_ioreg_read;
900 atom_card_info->ioreg_write = cail_ioreg_write;
902 DRM_INFO("PCI I/O BAR is not found. Using MMIO to access ATOM BIOS\n");
903 atom_card_info->ioreg_read = cail_reg_read;
904 atom_card_info->ioreg_write = cail_reg_write;
906 atom_card_info->mc_read = cail_mc_read;
907 atom_card_info->mc_write = cail_mc_write;
908 atom_card_info->pll_read = cail_pll_read;
909 atom_card_info->pll_write = cail_pll_write;
911 adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios);
912 if (!adev->mode_info.atom_context) {
913 amdgpu_atombios_fini(adev);
917 mutex_init(&adev->mode_info.atom_context->mutex);
918 amdgpu_atombios_scratch_regs_init(adev);
919 amdgpu_atom_allocate_fb_scratch(adev->mode_info.atom_context);
923 /* if we get transitioned to only one device, take VGA back */
925 * amdgpu_vga_set_decode - enable/disable vga decode
927 * @cookie: amdgpu_device pointer
928 * @state: enable/disable vga decode
930 * Enable/disable vga decode (all asics).
931 * Returns VGA resource flags.
933 static unsigned int amdgpu_vga_set_decode(void *cookie, bool state)
935 struct amdgpu_device *adev = cookie;
936 amdgpu_asic_set_vga_state(adev, state);
938 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
939 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
941 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
945 * amdgpu_check_pot_argument - check that argument is a power of two
947 * @arg: value to check
949 * Validates that a certain argument is a power of two (all asics).
950 * Returns true if argument is valid.
952 static bool amdgpu_check_pot_argument(int arg)
954 return (arg & (arg - 1)) == 0;
958 * amdgpu_check_arguments - validate module params
960 * @adev: amdgpu_device pointer
962 * Validates certain module parameters and updates
963 * the associated values used by the driver (all asics).
965 static void amdgpu_check_arguments(struct amdgpu_device *adev)
967 if (amdgpu_sched_jobs < 4) {
968 dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n",
970 amdgpu_sched_jobs = 4;
971 } else if (!amdgpu_check_pot_argument(amdgpu_sched_jobs)){
972 dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n",
974 amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
977 if (amdgpu_gart_size != -1) {
978 /* gtt size must be greater or equal to 32M */
979 if (amdgpu_gart_size < 32) {
980 dev_warn(adev->dev, "gart size (%d) too small\n",
982 amdgpu_gart_size = -1;
986 if (!amdgpu_check_pot_argument(amdgpu_vm_size)) {
987 dev_warn(adev->dev, "VM size (%d) must be a power of 2\n",
992 if (amdgpu_vm_size < 1) {
993 dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n",
999 * Max GPUVM size for Cayman, SI and CI are 40 bits.
1001 if (amdgpu_vm_size > 1024) {
1002 dev_warn(adev->dev, "VM size (%d) too large, max is 1TB\n",
1007 /* defines number of bits in page table versus page directory,
1008 * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
1009 * page table and the remaining bits are in the page directory */
1010 if (amdgpu_vm_block_size == -1) {
1012 /* Total bits covered by PD + PTs */
1013 unsigned bits = ilog2(amdgpu_vm_size) + 18;
1015 /* Make sure the PD is 4K in size up to 8GB address space.
1016 Above that split equal between PD and PTs */
1017 if (amdgpu_vm_size <= 8)
1018 amdgpu_vm_block_size = bits - 9;
1020 amdgpu_vm_block_size = (bits + 3) / 2;
1022 } else if (amdgpu_vm_block_size < 9) {
1023 dev_warn(adev->dev, "VM page table size (%d) too small\n",
1024 amdgpu_vm_block_size);
1025 amdgpu_vm_block_size = 9;
1028 if (amdgpu_vm_block_size > 24 ||
1029 (amdgpu_vm_size * 1024) < (1ull << amdgpu_vm_block_size)) {
1030 dev_warn(adev->dev, "VM page table size (%d) too large\n",
1031 amdgpu_vm_block_size);
1032 amdgpu_vm_block_size = 9;
1035 if (amdgpu_vram_page_split != -1 && (amdgpu_vram_page_split < 16 ||
1036 !amdgpu_check_pot_argument(amdgpu_vram_page_split))) {
1037 dev_warn(adev->dev, "invalid VRAM page split (%d)\n",
1038 amdgpu_vram_page_split);
1039 amdgpu_vram_page_split = 1024;
1044 * amdgpu_switcheroo_set_state - set switcheroo state
1046 * @pdev: pci dev pointer
1047 * @state: vga_switcheroo state
1049 * Callback for the switcheroo driver. Suspends or resumes the
1050 * the asics before or after it is powered up using ACPI methods.
1052 static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
1054 struct drm_device *dev = pci_get_drvdata(pdev);
1056 if (amdgpu_device_is_px(dev) && state == VGA_SWITCHEROO_OFF)
1059 if (state == VGA_SWITCHEROO_ON) {
1060 unsigned d3_delay = dev->pdev->d3_delay;
1062 printk(KERN_INFO "amdgpu: switched on\n");
1063 /* don't suspend or resume card normally */
1064 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1066 amdgpu_device_resume(dev, true, true);
1068 dev->pdev->d3_delay = d3_delay;
1070 dev->switch_power_state = DRM_SWITCH_POWER_ON;
1071 drm_kms_helper_poll_enable(dev);
1073 printk(KERN_INFO "amdgpu: switched off\n");
1074 drm_kms_helper_poll_disable(dev);
1075 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1076 amdgpu_device_suspend(dev, true, true);
1077 dev->switch_power_state = DRM_SWITCH_POWER_OFF;
1082 * amdgpu_switcheroo_can_switch - see if switcheroo state can change
1084 * @pdev: pci dev pointer
1086 * Callback for the switcheroo driver. Check of the switcheroo
1087 * state can be changed.
1088 * Returns true if the state can be changed, false if not.
1090 static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev)
1092 struct drm_device *dev = pci_get_drvdata(pdev);
1095 * FIXME: open_count is protected by drm_global_mutex but that would lead to
1096 * locking inversion with the driver load path. And the access here is
1097 * completely racy anyway. So don't bother with locking for now.
1099 return dev->open_count == 0;
1102 static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = {
1103 .set_gpu_state = amdgpu_switcheroo_set_state,
1105 .can_switch = amdgpu_switcheroo_can_switch,
1108 int amdgpu_set_clockgating_state(struct amdgpu_device *adev,
1109 enum amd_ip_block_type block_type,
1110 enum amd_clockgating_state state)
1114 for (i = 0; i < adev->num_ip_blocks; i++) {
1115 if (!adev->ip_blocks[i].status.valid)
1117 if (adev->ip_blocks[i].version->type == block_type) {
1118 r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
1128 int amdgpu_set_powergating_state(struct amdgpu_device *adev,
1129 enum amd_ip_block_type block_type,
1130 enum amd_powergating_state state)
1134 for (i = 0; i < adev->num_ip_blocks; i++) {
1135 if (!adev->ip_blocks[i].status.valid)
1137 if (adev->ip_blocks[i].version->type == block_type) {
1138 r = adev->ip_blocks[i].version->funcs->set_powergating_state((void *)adev,
1148 void amdgpu_get_clockgating_state(struct amdgpu_device *adev, u32 *flags)
1152 for (i = 0; i < adev->num_ip_blocks; i++) {
1153 if (!adev->ip_blocks[i].status.valid)
1155 if (adev->ip_blocks[i].version->funcs->get_clockgating_state)
1156 adev->ip_blocks[i].version->funcs->get_clockgating_state((void *)adev, flags);
1160 int amdgpu_wait_for_idle(struct amdgpu_device *adev,
1161 enum amd_ip_block_type block_type)
1165 for (i = 0; i < adev->num_ip_blocks; i++) {
1166 if (!adev->ip_blocks[i].status.valid)
1168 if (adev->ip_blocks[i].version->type == block_type) {
1169 r = adev->ip_blocks[i].version->funcs->wait_for_idle((void *)adev);
1179 bool amdgpu_is_idle(struct amdgpu_device *adev,
1180 enum amd_ip_block_type block_type)
1184 for (i = 0; i < adev->num_ip_blocks; i++) {
1185 if (!adev->ip_blocks[i].status.valid)
1187 if (adev->ip_blocks[i].version->type == block_type)
1188 return adev->ip_blocks[i].version->funcs->is_idle((void *)adev);
1194 struct amdgpu_ip_block * amdgpu_get_ip_block(struct amdgpu_device *adev,
1195 enum amd_ip_block_type type)
1199 for (i = 0; i < adev->num_ip_blocks; i++)
1200 if (adev->ip_blocks[i].version->type == type)
1201 return &adev->ip_blocks[i];
1207 * amdgpu_ip_block_version_cmp
1209 * @adev: amdgpu_device pointer
1210 * @type: enum amd_ip_block_type
1211 * @major: major version
1212 * @minor: minor version
1214 * return 0 if equal or greater
1215 * return 1 if smaller or the ip_block doesn't exist
1217 int amdgpu_ip_block_version_cmp(struct amdgpu_device *adev,
1218 enum amd_ip_block_type type,
1219 u32 major, u32 minor)
1221 struct amdgpu_ip_block *ip_block = amdgpu_get_ip_block(adev, type);
1223 if (ip_block && ((ip_block->version->major > major) ||
1224 ((ip_block->version->major == major) &&
1225 (ip_block->version->minor >= minor))))
1232 * amdgpu_ip_block_add
1234 * @adev: amdgpu_device pointer
1235 * @ip_block_version: pointer to the IP to add
1237 * Adds the IP block driver information to the collection of IPs
1240 int amdgpu_ip_block_add(struct amdgpu_device *adev,
1241 const struct amdgpu_ip_block_version *ip_block_version)
1243 if (!ip_block_version)
1246 adev->ip_blocks[adev->num_ip_blocks++].version = ip_block_version;
1251 static void amdgpu_device_enable_virtual_display(struct amdgpu_device *adev)
1253 adev->enable_virtual_display = false;
1255 if (amdgpu_virtual_display) {
1256 struct drm_device *ddev = adev->ddev;
1257 const char *pci_address_name = pci_name(ddev->pdev);
1258 char *pciaddstr, *pciaddstr_tmp, *pciaddname_tmp, *pciaddname;
1260 pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL);
1261 pciaddstr_tmp = pciaddstr;
1262 while ((pciaddname_tmp = strsep(&pciaddstr_tmp, ";"))) {
1263 pciaddname = strsep(&pciaddname_tmp, ",");
1264 if (!strcmp("all", pciaddname)
1265 || !strcmp(pci_address_name, pciaddname)) {
1269 adev->enable_virtual_display = true;
1272 res = kstrtol(pciaddname_tmp, 10,
1280 adev->mode_info.num_crtc = num_crtc;
1282 adev->mode_info.num_crtc = 1;
1288 DRM_INFO("virtual display string:%s, %s:virtual_display:%d, num_crtc:%d\n",
1289 amdgpu_virtual_display, pci_address_name,
1290 adev->enable_virtual_display, adev->mode_info.num_crtc);
1296 static int amdgpu_early_init(struct amdgpu_device *adev)
1300 amdgpu_device_enable_virtual_display(adev);
1302 switch (adev->asic_type) {
1306 case CHIP_POLARIS11:
1307 case CHIP_POLARIS10:
1308 case CHIP_POLARIS12:
1311 if (adev->asic_type == CHIP_CARRIZO || adev->asic_type == CHIP_STONEY)
1312 adev->family = AMDGPU_FAMILY_CZ;
1314 adev->family = AMDGPU_FAMILY_VI;
1316 r = vi_set_ip_blocks(adev);
1320 #ifdef CONFIG_DRM_AMDGPU_SI
1326 adev->family = AMDGPU_FAMILY_SI;
1327 r = si_set_ip_blocks(adev);
1332 #ifdef CONFIG_DRM_AMDGPU_CIK
1338 if ((adev->asic_type == CHIP_BONAIRE) || (adev->asic_type == CHIP_HAWAII))
1339 adev->family = AMDGPU_FAMILY_CI;
1341 adev->family = AMDGPU_FAMILY_KV;
1343 r = cik_set_ip_blocks(adev);
1349 /* FIXME: not supported yet */
1353 if (amdgpu_sriov_vf(adev)) {
1354 r = amdgpu_virt_request_full_gpu(adev, true);
1359 for (i = 0; i < adev->num_ip_blocks; i++) {
1360 if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
1361 DRM_ERROR("disabled ip block: %d\n", i);
1362 adev->ip_blocks[i].status.valid = false;
1364 if (adev->ip_blocks[i].version->funcs->early_init) {
1365 r = adev->ip_blocks[i].version->funcs->early_init((void *)adev);
1367 adev->ip_blocks[i].status.valid = false;
1369 DRM_ERROR("early_init of IP block <%s> failed %d\n",
1370 adev->ip_blocks[i].version->funcs->name, r);
1373 adev->ip_blocks[i].status.valid = true;
1376 adev->ip_blocks[i].status.valid = true;
1381 adev->cg_flags &= amdgpu_cg_mask;
1382 adev->pg_flags &= amdgpu_pg_mask;
1387 static int amdgpu_init(struct amdgpu_device *adev)
1391 for (i = 0; i < adev->num_ip_blocks; i++) {
1392 if (!adev->ip_blocks[i].status.valid)
1394 r = adev->ip_blocks[i].version->funcs->sw_init((void *)adev);
1396 DRM_ERROR("sw_init of IP block <%s> failed %d\n",
1397 adev->ip_blocks[i].version->funcs->name, r);
1400 adev->ip_blocks[i].status.sw = true;
1401 /* need to do gmc hw init early so we can allocate gpu mem */
1402 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
1403 r = amdgpu_vram_scratch_init(adev);
1405 DRM_ERROR("amdgpu_vram_scratch_init failed %d\n", r);
1408 r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
1410 DRM_ERROR("hw_init %d failed %d\n", i, r);
1413 r = amdgpu_wb_init(adev);
1415 DRM_ERROR("amdgpu_wb_init failed %d\n", r);
1418 adev->ip_blocks[i].status.hw = true;
1420 /* right after GMC hw init, we create CSA */
1421 if (amdgpu_sriov_vf(adev)) {
1422 r = amdgpu_allocate_static_csa(adev);
1424 DRM_ERROR("allocate CSA failed %d\n", r);
1431 for (i = 0; i < adev->num_ip_blocks; i++) {
1432 if (!adev->ip_blocks[i].status.sw)
1434 /* gmc hw init is done early */
1435 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC)
1437 r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
1439 DRM_ERROR("hw_init of IP block <%s> failed %d\n",
1440 adev->ip_blocks[i].version->funcs->name, r);
1443 adev->ip_blocks[i].status.hw = true;
1449 static int amdgpu_late_init(struct amdgpu_device *adev)
1453 for (i = 0; i < adev->num_ip_blocks; i++) {
1454 if (!adev->ip_blocks[i].status.valid)
1456 if (adev->ip_blocks[i].version->funcs->late_init) {
1457 r = adev->ip_blocks[i].version->funcs->late_init((void *)adev);
1459 DRM_ERROR("late_init of IP block <%s> failed %d\n",
1460 adev->ip_blocks[i].version->funcs->name, r);
1463 adev->ip_blocks[i].status.late_initialized = true;
1465 /* skip CG for VCE/UVD, it's handled specially */
1466 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
1467 adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE) {
1468 /* enable clockgating to save power */
1469 r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
1472 DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n",
1473 adev->ip_blocks[i].version->funcs->name, r);
1482 static int amdgpu_fini(struct amdgpu_device *adev)
1486 /* need to disable SMC first */
1487 for (i = 0; i < adev->num_ip_blocks; i++) {
1488 if (!adev->ip_blocks[i].status.hw)
1490 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
1491 /* ungate blocks before hw fini so that we can shutdown the blocks safely */
1492 r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
1493 AMD_CG_STATE_UNGATE);
1495 DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n",
1496 adev->ip_blocks[i].version->funcs->name, r);
1499 r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
1500 /* XXX handle errors */
1502 DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
1503 adev->ip_blocks[i].version->funcs->name, r);
1505 adev->ip_blocks[i].status.hw = false;
1510 for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1511 if (!adev->ip_blocks[i].status.hw)
1513 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
1514 amdgpu_wb_fini(adev);
1515 amdgpu_vram_scratch_fini(adev);
1518 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
1519 adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE) {
1520 /* ungate blocks before hw fini so that we can shutdown the blocks safely */
1521 r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
1522 AMD_CG_STATE_UNGATE);
1524 DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n",
1525 adev->ip_blocks[i].version->funcs->name, r);
1530 r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
1531 /* XXX handle errors */
1533 DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
1534 adev->ip_blocks[i].version->funcs->name, r);
1537 adev->ip_blocks[i].status.hw = false;
1540 for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1541 if (!adev->ip_blocks[i].status.sw)
1543 r = adev->ip_blocks[i].version->funcs->sw_fini((void *)adev);
1544 /* XXX handle errors */
1546 DRM_DEBUG("sw_fini of IP block <%s> failed %d\n",
1547 adev->ip_blocks[i].version->funcs->name, r);
1549 adev->ip_blocks[i].status.sw = false;
1550 adev->ip_blocks[i].status.valid = false;
1553 for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1554 if (!adev->ip_blocks[i].status.late_initialized)
1556 if (adev->ip_blocks[i].version->funcs->late_fini)
1557 adev->ip_blocks[i].version->funcs->late_fini((void *)adev);
1558 adev->ip_blocks[i].status.late_initialized = false;
1561 if (amdgpu_sriov_vf(adev)) {
1562 amdgpu_bo_free_kernel(&adev->virt.csa_obj, &adev->virt.csa_vmid0_addr, NULL);
1563 amdgpu_virt_release_full_gpu(adev, false);
1569 int amdgpu_suspend(struct amdgpu_device *adev)
1573 if (amdgpu_sriov_vf(adev))
1574 amdgpu_virt_request_full_gpu(adev, false);
1576 /* ungate SMC block first */
1577 r = amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_SMC,
1578 AMD_CG_STATE_UNGATE);
1580 DRM_ERROR("set_clockgating_state(ungate) SMC failed %d\n",r);
1583 for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1584 if (!adev->ip_blocks[i].status.valid)
1586 /* ungate blocks so that suspend can properly shut them down */
1587 if (i != AMD_IP_BLOCK_TYPE_SMC) {
1588 r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
1589 AMD_CG_STATE_UNGATE);
1591 DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n",
1592 adev->ip_blocks[i].version->funcs->name, r);
1595 /* XXX handle errors */
1596 r = adev->ip_blocks[i].version->funcs->suspend(adev);
1597 /* XXX handle errors */
1599 DRM_ERROR("suspend of IP block <%s> failed %d\n",
1600 adev->ip_blocks[i].version->funcs->name, r);
1604 if (amdgpu_sriov_vf(adev))
1605 amdgpu_virt_release_full_gpu(adev, false);
1610 static int amdgpu_sriov_reinit_early(struct amdgpu_device *adev)
1614 for (i = 0; i < adev->num_ip_blocks; i++) {
1615 if (!adev->ip_blocks[i].status.valid)
1618 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
1619 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
1620 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH)
1621 r = adev->ip_blocks[i].version->funcs->hw_init(adev);
1624 DRM_ERROR("resume of IP block <%s> failed %d\n",
1625 adev->ip_blocks[i].version->funcs->name, r);
1633 static int amdgpu_sriov_reinit_late(struct amdgpu_device *adev)
1637 for (i = 0; i < adev->num_ip_blocks; i++) {
1638 if (!adev->ip_blocks[i].status.valid)
1641 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
1642 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
1643 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH )
1646 r = adev->ip_blocks[i].version->funcs->hw_init(adev);
1648 DRM_ERROR("resume of IP block <%s> failed %d\n",
1649 adev->ip_blocks[i].version->funcs->name, r);
1657 static int amdgpu_resume(struct amdgpu_device *adev)
1661 for (i = 0; i < adev->num_ip_blocks; i++) {
1662 if (!adev->ip_blocks[i].status.valid)
1664 r = adev->ip_blocks[i].version->funcs->resume(adev);
1666 DRM_ERROR("resume of IP block <%s> failed %d\n",
1667 adev->ip_blocks[i].version->funcs->name, r);
1675 static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev)
1677 if (amdgpu_atombios_has_gpu_virtualization_table(adev))
1678 adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
1682 * amdgpu_device_init - initialize the driver
1684 * @adev: amdgpu_device pointer
1685 * @pdev: drm dev pointer
1686 * @pdev: pci dev pointer
1687 * @flags: driver flags
1689 * Initializes the driver info and hw (all asics).
1690 * Returns 0 for success or an error on failure.
1691 * Called at driver startup.
1693 int amdgpu_device_init(struct amdgpu_device *adev,
1694 struct drm_device *ddev,
1695 struct pci_dev *pdev,
1699 bool runtime = false;
1702 adev->shutdown = false;
1703 adev->dev = &pdev->dev;
1706 adev->flags = flags;
1707 adev->asic_type = flags & AMD_ASIC_MASK;
1708 adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT;
1709 adev->mc.gtt_size = 512 * 1024 * 1024;
1710 adev->accel_working = false;
1711 adev->num_rings = 0;
1712 adev->mman.buffer_funcs = NULL;
1713 adev->mman.buffer_funcs_ring = NULL;
1714 adev->vm_manager.vm_pte_funcs = NULL;
1715 adev->vm_manager.vm_pte_num_rings = 0;
1716 adev->gart.gart_funcs = NULL;
1717 adev->fence_context = dma_fence_context_alloc(AMDGPU_MAX_RINGS);
1719 adev->smc_rreg = &amdgpu_invalid_rreg;
1720 adev->smc_wreg = &amdgpu_invalid_wreg;
1721 adev->pcie_rreg = &amdgpu_invalid_rreg;
1722 adev->pcie_wreg = &amdgpu_invalid_wreg;
1723 adev->pciep_rreg = &amdgpu_invalid_rreg;
1724 adev->pciep_wreg = &amdgpu_invalid_wreg;
1725 adev->uvd_ctx_rreg = &amdgpu_invalid_rreg;
1726 adev->uvd_ctx_wreg = &amdgpu_invalid_wreg;
1727 adev->didt_rreg = &amdgpu_invalid_rreg;
1728 adev->didt_wreg = &amdgpu_invalid_wreg;
1729 adev->gc_cac_rreg = &amdgpu_invalid_rreg;
1730 adev->gc_cac_wreg = &amdgpu_invalid_wreg;
1731 adev->audio_endpt_rreg = &amdgpu_block_invalid_rreg;
1732 adev->audio_endpt_wreg = &amdgpu_block_invalid_wreg;
1735 DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n",
1736 amdgpu_asic_name[adev->asic_type], pdev->vendor, pdev->device,
1737 pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision);
1739 /* mutex initialization are all done here so we
1740 * can recall function without having locking issues */
1741 mutex_init(&adev->vm_manager.lock);
1742 atomic_set(&adev->irq.ih.lock, 0);
1743 mutex_init(&adev->pm.mutex);
1744 mutex_init(&adev->gfx.gpu_clock_mutex);
1745 mutex_init(&adev->srbm_mutex);
1746 mutex_init(&adev->grbm_idx_mutex);
1747 mutex_init(&adev->mn_lock);
1748 hash_init(adev->mn_hash);
1750 amdgpu_check_arguments(adev);
1752 /* Registers mapping */
1753 /* TODO: block userspace mapping of io register */
1754 spin_lock_init(&adev->mmio_idx_lock);
1755 spin_lock_init(&adev->smc_idx_lock);
1756 spin_lock_init(&adev->pcie_idx_lock);
1757 spin_lock_init(&adev->uvd_ctx_idx_lock);
1758 spin_lock_init(&adev->didt_idx_lock);
1759 spin_lock_init(&adev->gc_cac_idx_lock);
1760 spin_lock_init(&adev->audio_endpt_idx_lock);
1761 spin_lock_init(&adev->mm_stats.lock);
1763 INIT_LIST_HEAD(&adev->shadow_list);
1764 mutex_init(&adev->shadow_list_lock);
1766 INIT_LIST_HEAD(&adev->gtt_list);
1767 spin_lock_init(&adev->gtt_list_lock);
1769 if (adev->asic_type >= CHIP_BONAIRE) {
1770 adev->rmmio_base = pci_resource_start(adev->pdev, 5);
1771 adev->rmmio_size = pci_resource_len(adev->pdev, 5);
1773 adev->rmmio_base = pci_resource_start(adev->pdev, 2);
1774 adev->rmmio_size = pci_resource_len(adev->pdev, 2);
1777 adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size);
1778 if (adev->rmmio == NULL) {
1781 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base);
1782 DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size);
1784 if (adev->asic_type >= CHIP_BONAIRE)
1785 /* doorbell bar mapping */
1786 amdgpu_doorbell_init(adev);
1788 /* io port mapping */
1789 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
1790 if (pci_resource_flags(adev->pdev, i) & IORESOURCE_IO) {
1791 adev->rio_mem_size = pci_resource_len(adev->pdev, i);
1792 adev->rio_mem = pci_iomap(adev->pdev, i, adev->rio_mem_size);
1796 if (adev->rio_mem == NULL)
1797 DRM_INFO("PCI I/O BAR is not found.\n");
1799 /* early init functions */
1800 r = amdgpu_early_init(adev);
1804 /* if we have > 1 VGA cards, then disable the amdgpu VGA resources */
1805 /* this will fail for cards that aren't VGA class devices, just
1807 vga_client_register(adev->pdev, adev, NULL, amdgpu_vga_set_decode);
1809 if (amdgpu_runtime_pm == 1)
1811 if (amdgpu_device_is_px(ddev))
1813 vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime);
1815 vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
1818 if (!amdgpu_get_bios(adev)) {
1823 r = amdgpu_atombios_init(adev);
1825 dev_err(adev->dev, "amdgpu_atombios_init failed\n");
1829 /* detect if we are with an SRIOV vbios */
1830 amdgpu_device_detect_sriov_bios(adev);
1832 /* Post card if necessary */
1833 if (amdgpu_vpost_needed(adev)) {
1835 dev_err(adev->dev, "no vBIOS found\n");
1839 DRM_INFO("GPU posting now...\n");
1840 r = amdgpu_atom_asic_init(adev->mode_info.atom_context);
1842 dev_err(adev->dev, "gpu post error!\n");
1846 DRM_INFO("GPU post is not needed\n");
1849 /* Initialize clocks */
1850 r = amdgpu_atombios_get_clock_info(adev);
1852 dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n");
1855 /* init i2c buses */
1856 amdgpu_atombios_i2c_init(adev);
1859 r = amdgpu_fence_driver_init(adev);
1861 dev_err(adev->dev, "amdgpu_fence_driver_init failed\n");
1865 /* init the mode config */
1866 drm_mode_config_init(adev->ddev);
1868 r = amdgpu_init(adev);
1870 dev_err(adev->dev, "amdgpu_init failed\n");
1875 adev->accel_working = true;
1877 /* Initialize the buffer migration limit. */
1878 if (amdgpu_moverate >= 0)
1879 max_MBps = amdgpu_moverate;
1881 max_MBps = 8; /* Allow 8 MB/s. */
1882 /* Get a log2 for easy divisions. */
1883 adev->mm_stats.log2_max_MBps = ilog2(max(1u, max_MBps));
1885 r = amdgpu_ib_pool_init(adev);
1887 dev_err(adev->dev, "IB initialization failed (%d).\n", r);
1891 r = amdgpu_ib_ring_tests(adev);
1893 DRM_ERROR("ib ring test failed (%d).\n", r);
1895 amdgpu_fbdev_init(adev);
1897 r = amdgpu_gem_debugfs_init(adev);
1899 DRM_ERROR("registering gem debugfs failed (%d).\n", r);
1901 r = amdgpu_debugfs_regs_init(adev);
1903 DRM_ERROR("registering register debugfs failed (%d).\n", r);
1905 r = amdgpu_debugfs_firmware_init(adev);
1907 DRM_ERROR("registering firmware debugfs failed (%d).\n", r);
1909 if ((amdgpu_testing & 1)) {
1910 if (adev->accel_working)
1911 amdgpu_test_moves(adev);
1913 DRM_INFO("amdgpu: acceleration disabled, skipping move tests\n");
1915 if ((amdgpu_testing & 2)) {
1916 if (adev->accel_working)
1917 amdgpu_test_syncing(adev);
1919 DRM_INFO("amdgpu: acceleration disabled, skipping sync tests\n");
1921 if (amdgpu_benchmarking) {
1922 if (adev->accel_working)
1923 amdgpu_benchmark(adev, amdgpu_benchmarking);
1925 DRM_INFO("amdgpu: acceleration disabled, skipping benchmarks\n");
1928 /* enable clockgating, etc. after ib tests, etc. since some blocks require
1929 * explicit gating rather than handling it automatically.
1931 r = amdgpu_late_init(adev);
1933 dev_err(adev->dev, "amdgpu_late_init failed\n");
1941 vga_switcheroo_fini_domain_pm_ops(adev->dev);
1946 * amdgpu_device_fini - tear down the driver
1948 * @adev: amdgpu_device pointer
1950 * Tear down the driver info (all asics).
1951 * Called at driver shutdown.
1953 void amdgpu_device_fini(struct amdgpu_device *adev)
1957 DRM_INFO("amdgpu: finishing device.\n");
1958 adev->shutdown = true;
1959 drm_crtc_force_disable_all(adev->ddev);
1960 /* evict vram memory */
1961 amdgpu_bo_evict_vram(adev);
1962 amdgpu_ib_pool_fini(adev);
1963 amdgpu_fence_driver_fini(adev);
1964 amdgpu_fbdev_fini(adev);
1965 r = amdgpu_fini(adev);
1966 adev->accel_working = false;
1967 /* free i2c buses */
1968 amdgpu_i2c_fini(adev);
1969 amdgpu_atombios_fini(adev);
1972 vga_switcheroo_unregister_client(adev->pdev);
1973 if (adev->flags & AMD_IS_PX)
1974 vga_switcheroo_fini_domain_pm_ops(adev->dev);
1975 vga_client_register(adev->pdev, NULL, NULL, NULL);
1977 pci_iounmap(adev->pdev, adev->rio_mem);
1978 adev->rio_mem = NULL;
1979 iounmap(adev->rmmio);
1981 if (adev->asic_type >= CHIP_BONAIRE)
1982 amdgpu_doorbell_fini(adev);
1983 amdgpu_debugfs_regs_cleanup(adev);
1991 * amdgpu_device_suspend - initiate device suspend
1993 * @pdev: drm dev pointer
1994 * @state: suspend state
1996 * Puts the hw in the suspend state (all asics).
1997 * Returns 0 for success or an error on failure.
1998 * Called at driver suspend.
2000 int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon)
2002 struct amdgpu_device *adev;
2003 struct drm_crtc *crtc;
2004 struct drm_connector *connector;
2007 if (dev == NULL || dev->dev_private == NULL) {
2011 adev = dev->dev_private;
2013 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
2016 drm_kms_helper_poll_disable(dev);
2018 /* turn off display hw */
2019 drm_modeset_lock_all(dev);
2020 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2021 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
2023 drm_modeset_unlock_all(dev);
2025 /* unpin the front buffers and cursors */
2026 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2027 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2028 struct amdgpu_framebuffer *rfb = to_amdgpu_framebuffer(crtc->primary->fb);
2029 struct amdgpu_bo *robj;
2031 if (amdgpu_crtc->cursor_bo) {
2032 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
2033 r = amdgpu_bo_reserve(aobj, false);
2035 amdgpu_bo_unpin(aobj);
2036 amdgpu_bo_unreserve(aobj);
2040 if (rfb == NULL || rfb->obj == NULL) {
2043 robj = gem_to_amdgpu_bo(rfb->obj);
2044 /* don't unpin kernel fb objects */
2045 if (!amdgpu_fbdev_robj_is_fb(adev, robj)) {
2046 r = amdgpu_bo_reserve(robj, false);
2048 amdgpu_bo_unpin(robj);
2049 amdgpu_bo_unreserve(robj);
2053 /* evict vram memory */
2054 amdgpu_bo_evict_vram(adev);
2056 amdgpu_fence_driver_suspend(adev);
2058 r = amdgpu_suspend(adev);
2060 /* evict remaining vram memory
2061 * This second call to evict vram is to evict the gart page table
2064 amdgpu_bo_evict_vram(adev);
2066 amdgpu_atombios_scratch_regs_save(adev);
2067 pci_save_state(dev->pdev);
2069 /* Shut down the device */
2070 pci_disable_device(dev->pdev);
2071 pci_set_power_state(dev->pdev, PCI_D3hot);
2073 r = amdgpu_asic_reset(adev);
2075 DRM_ERROR("amdgpu asic reset failed\n");
2080 amdgpu_fbdev_set_suspend(adev, 1);
2087 * amdgpu_device_resume - initiate device resume
2089 * @pdev: drm dev pointer
2091 * Bring the hw back to operating state (all asics).
2092 * Returns 0 for success or an error on failure.
2093 * Called at driver resume.
2095 int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon)
2097 struct drm_connector *connector;
2098 struct amdgpu_device *adev = dev->dev_private;
2099 struct drm_crtc *crtc;
2102 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
2109 pci_set_power_state(dev->pdev, PCI_D0);
2110 pci_restore_state(dev->pdev);
2111 r = pci_enable_device(dev->pdev);
2118 amdgpu_atombios_scratch_regs_restore(adev);
2121 if (amdgpu_need_post(adev)) {
2122 r = amdgpu_atom_asic_init(adev->mode_info.atom_context);
2124 DRM_ERROR("amdgpu asic init failed\n");
2127 r = amdgpu_resume(adev);
2129 DRM_ERROR("amdgpu_resume failed (%d).\n", r);
2131 amdgpu_fence_driver_resume(adev);
2134 r = amdgpu_ib_ring_tests(adev);
2136 DRM_ERROR("ib ring test failed (%d).\n", r);
2139 r = amdgpu_late_init(adev);
2147 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2148 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2150 if (amdgpu_crtc->cursor_bo) {
2151 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
2152 r = amdgpu_bo_reserve(aobj, false);
2154 r = amdgpu_bo_pin(aobj,
2155 AMDGPU_GEM_DOMAIN_VRAM,
2156 &amdgpu_crtc->cursor_addr);
2158 DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
2159 amdgpu_bo_unreserve(aobj);
2164 /* blat the mode back in */
2166 drm_helper_resume_force_mode(dev);
2167 /* turn on display hw */
2168 drm_modeset_lock_all(dev);
2169 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2170 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
2172 drm_modeset_unlock_all(dev);
2175 drm_kms_helper_poll_enable(dev);
2178 * Most of the connector probing functions try to acquire runtime pm
2179 * refs to ensure that the GPU is powered on when connector polling is
2180 * performed. Since we're calling this from a runtime PM callback,
2181 * trying to acquire rpm refs will cause us to deadlock.
2183 * Since we're guaranteed to be holding the rpm lock, it's safe to
2184 * temporarily disable the rpm helpers so this doesn't deadlock us.
2187 dev->dev->power.disable_depth++;
2189 drm_helper_hpd_irq_event(dev);
2191 dev->dev->power.disable_depth--;
2195 amdgpu_fbdev_set_suspend(adev, 0);
2202 static bool amdgpu_check_soft_reset(struct amdgpu_device *adev)
2205 bool asic_hang = false;
2207 for (i = 0; i < adev->num_ip_blocks; i++) {
2208 if (!adev->ip_blocks[i].status.valid)
2210 if (adev->ip_blocks[i].version->funcs->check_soft_reset)
2211 adev->ip_blocks[i].status.hang =
2212 adev->ip_blocks[i].version->funcs->check_soft_reset(adev);
2213 if (adev->ip_blocks[i].status.hang) {
2214 DRM_INFO("IP block:%s is hung!\n", adev->ip_blocks[i].version->funcs->name);
2221 static int amdgpu_pre_soft_reset(struct amdgpu_device *adev)
2225 for (i = 0; i < adev->num_ip_blocks; i++) {
2226 if (!adev->ip_blocks[i].status.valid)
2228 if (adev->ip_blocks[i].status.hang &&
2229 adev->ip_blocks[i].version->funcs->pre_soft_reset) {
2230 r = adev->ip_blocks[i].version->funcs->pre_soft_reset(adev);
2239 static bool amdgpu_need_full_reset(struct amdgpu_device *adev)
2243 for (i = 0; i < adev->num_ip_blocks; i++) {
2244 if (!adev->ip_blocks[i].status.valid)
2246 if ((adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) ||
2247 (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) ||
2248 (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) ||
2249 (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)) {
2250 if (adev->ip_blocks[i].status.hang) {
2251 DRM_INFO("Some block need full reset!\n");
2259 static int amdgpu_soft_reset(struct amdgpu_device *adev)
2263 for (i = 0; i < adev->num_ip_blocks; i++) {
2264 if (!adev->ip_blocks[i].status.valid)
2266 if (adev->ip_blocks[i].status.hang &&
2267 adev->ip_blocks[i].version->funcs->soft_reset) {
2268 r = adev->ip_blocks[i].version->funcs->soft_reset(adev);
2277 static int amdgpu_post_soft_reset(struct amdgpu_device *adev)
2281 for (i = 0; i < adev->num_ip_blocks; i++) {
2282 if (!adev->ip_blocks[i].status.valid)
2284 if (adev->ip_blocks[i].status.hang &&
2285 adev->ip_blocks[i].version->funcs->post_soft_reset)
2286 r = adev->ip_blocks[i].version->funcs->post_soft_reset(adev);
2294 bool amdgpu_need_backup(struct amdgpu_device *adev)
2296 if (adev->flags & AMD_IS_APU)
2299 return amdgpu_lockup_timeout > 0 ? true : false;
2302 static int amdgpu_recover_vram_from_shadow(struct amdgpu_device *adev,
2303 struct amdgpu_ring *ring,
2304 struct amdgpu_bo *bo,
2305 struct dma_fence **fence)
2313 r = amdgpu_bo_reserve(bo, false);
2316 domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
2317 /* if bo has been evicted, then no need to recover */
2318 if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
2319 r = amdgpu_bo_restore_from_shadow(adev, ring, bo,
2322 DRM_ERROR("recover page table failed!\n");
2327 amdgpu_bo_unreserve(bo);
2332 * amdgpu_sriov_gpu_reset - reset the asic
2334 * @adev: amdgpu device pointer
2335 * @voluntary: if this reset is requested by guest.
2336 * (true means by guest and false means by HYPERVISOR )
2338 * Attempt the reset the GPU if it has hung (all asics).
2340 * Returns 0 for success or an error on failure.
2342 int amdgpu_sriov_gpu_reset(struct amdgpu_device *adev, bool voluntary)
2346 struct amdgpu_bo *bo, *tmp;
2347 struct amdgpu_ring *ring;
2348 struct dma_fence *fence = NULL, *next = NULL;
2350 mutex_lock(&adev->virt.lock_reset);
2351 atomic_inc(&adev->gpu_reset_counter);
2352 adev->gfx.in_reset = true;
2355 resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
2357 /* block scheduler */
2358 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
2359 ring = adev->rings[i];
2361 if (!ring || !ring->sched.thread)
2364 kthread_park(ring->sched.thread);
2365 amd_sched_hw_job_reset(&ring->sched);
2368 /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
2369 amdgpu_fence_driver_force_completion(adev);
2371 /* request to take full control of GPU before re-initialization */
2373 amdgpu_virt_reset_gpu(adev);
2375 amdgpu_virt_request_full_gpu(adev, true);
2378 /* Resume IP prior to SMC */
2379 amdgpu_sriov_reinit_early(adev);
2381 /* we need recover gart prior to run SMC/CP/SDMA resume */
2382 amdgpu_ttm_recover_gart(adev);
2384 /* now we are okay to resume SMC/CP/SDMA */
2385 amdgpu_sriov_reinit_late(adev);
2387 amdgpu_irq_gpu_reset_resume_helper(adev);
2389 if (amdgpu_ib_ring_tests(adev))
2390 dev_err(adev->dev, "[GPU_RESET] ib ring test failed (%d).\n", r);
2392 /* release full control of GPU after ib test */
2393 amdgpu_virt_release_full_gpu(adev, true);
2395 DRM_INFO("recover vram bo from shadow\n");
2397 ring = adev->mman.buffer_funcs_ring;
2398 mutex_lock(&adev->shadow_list_lock);
2399 list_for_each_entry_safe(bo, tmp, &adev->shadow_list, shadow_list) {
2400 amdgpu_recover_vram_from_shadow(adev, ring, bo, &next);
2402 r = dma_fence_wait(fence, false);
2404 WARN(r, "recovery from shadow isn't completed\n");
2409 dma_fence_put(fence);
2412 mutex_unlock(&adev->shadow_list_lock);
2415 r = dma_fence_wait(fence, false);
2417 WARN(r, "recovery from shadow isn't completed\n");
2419 dma_fence_put(fence);
2421 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
2422 struct amdgpu_ring *ring = adev->rings[i];
2423 if (!ring || !ring->sched.thread)
2426 amd_sched_job_recovery(&ring->sched);
2427 kthread_unpark(ring->sched.thread);
2430 drm_helper_resume_force_mode(adev->ddev);
2431 ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched);
2433 /* bad news, how to tell it to userspace ? */
2434 dev_info(adev->dev, "GPU reset failed\n");
2437 adev->gfx.in_reset = false;
2438 mutex_unlock(&adev->virt.lock_reset);
2443 * amdgpu_gpu_reset - reset the asic
2445 * @adev: amdgpu device pointer
2447 * Attempt the reset the GPU if it has hung (all asics).
2448 * Returns 0 for success or an error on failure.
2450 int amdgpu_gpu_reset(struct amdgpu_device *adev)
2454 bool need_full_reset;
2456 if (amdgpu_sriov_vf(adev))
2457 return amdgpu_sriov_gpu_reset(adev, true);
2459 if (!amdgpu_check_soft_reset(adev)) {
2460 DRM_INFO("No hardware hang detected. Did some blocks stall?\n");
2464 atomic_inc(&adev->gpu_reset_counter);
2467 resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
2469 /* block scheduler */
2470 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
2471 struct amdgpu_ring *ring = adev->rings[i];
2475 kthread_park(ring->sched.thread);
2476 amd_sched_hw_job_reset(&ring->sched);
2478 /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
2479 amdgpu_fence_driver_force_completion(adev);
2481 need_full_reset = amdgpu_need_full_reset(adev);
2483 if (!need_full_reset) {
2484 amdgpu_pre_soft_reset(adev);
2485 r = amdgpu_soft_reset(adev);
2486 amdgpu_post_soft_reset(adev);
2487 if (r || amdgpu_check_soft_reset(adev)) {
2488 DRM_INFO("soft reset failed, will fallback to full reset!\n");
2489 need_full_reset = true;
2493 if (need_full_reset) {
2494 r = amdgpu_suspend(adev);
2497 /* Disable fb access */
2498 if (adev->mode_info.num_crtc) {
2499 struct amdgpu_mode_mc_save save;
2500 amdgpu_display_stop_mc_access(adev, &save);
2501 amdgpu_wait_for_idle(adev, AMD_IP_BLOCK_TYPE_GMC);
2503 amdgpu_atombios_scratch_regs_save(adev);
2504 r = amdgpu_asic_reset(adev);
2505 amdgpu_atombios_scratch_regs_restore(adev);
2507 amdgpu_atom_asic_init(adev->mode_info.atom_context);
2510 dev_info(adev->dev, "GPU reset succeeded, trying to resume\n");
2511 r = amdgpu_resume(adev);
2515 amdgpu_irq_gpu_reset_resume_helper(adev);
2516 if (need_full_reset && amdgpu_need_backup(adev)) {
2517 r = amdgpu_ttm_recover_gart(adev);
2519 DRM_ERROR("gart recovery failed!!!\n");
2521 r = amdgpu_ib_ring_tests(adev);
2523 dev_err(adev->dev, "ib ring test failed (%d).\n", r);
2524 r = amdgpu_suspend(adev);
2525 need_full_reset = true;
2529 * recovery vm page tables, since we cannot depend on VRAM is
2530 * consistent after gpu full reset.
2532 if (need_full_reset && amdgpu_need_backup(adev)) {
2533 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
2534 struct amdgpu_bo *bo, *tmp;
2535 struct dma_fence *fence = NULL, *next = NULL;
2537 DRM_INFO("recover vram bo from shadow\n");
2538 mutex_lock(&adev->shadow_list_lock);
2539 list_for_each_entry_safe(bo, tmp, &adev->shadow_list, shadow_list) {
2540 amdgpu_recover_vram_from_shadow(adev, ring, bo, &next);
2542 r = dma_fence_wait(fence, false);
2544 WARN(r, "recovery from shadow isn't completed\n");
2549 dma_fence_put(fence);
2552 mutex_unlock(&adev->shadow_list_lock);
2554 r = dma_fence_wait(fence, false);
2556 WARN(r, "recovery from shadow isn't completed\n");
2558 dma_fence_put(fence);
2560 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
2561 struct amdgpu_ring *ring = adev->rings[i];
2565 amd_sched_job_recovery(&ring->sched);
2566 kthread_unpark(ring->sched.thread);
2569 dev_err(adev->dev, "asic resume failed (%d).\n", r);
2570 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
2571 if (adev->rings[i]) {
2572 kthread_unpark(adev->rings[i]->sched.thread);
2577 drm_helper_resume_force_mode(adev->ddev);
2579 ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched);
2581 /* bad news, how to tell it to userspace ? */
2582 dev_info(adev->dev, "GPU reset failed\n");
2588 void amdgpu_get_pcie_info(struct amdgpu_device *adev)
2593 if (amdgpu_pcie_gen_cap)
2594 adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap;
2596 if (amdgpu_pcie_lane_cap)
2597 adev->pm.pcie_mlw_mask = amdgpu_pcie_lane_cap;
2599 /* covers APUs as well */
2600 if (pci_is_root_bus(adev->pdev->bus)) {
2601 if (adev->pm.pcie_gen_mask == 0)
2602 adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
2603 if (adev->pm.pcie_mlw_mask == 0)
2604 adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
2608 if (adev->pm.pcie_gen_mask == 0) {
2609 ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
2611 adev->pm.pcie_gen_mask = (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
2612 CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
2613 CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
2615 if (mask & DRM_PCIE_SPEED_25)
2616 adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
2617 if (mask & DRM_PCIE_SPEED_50)
2618 adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2;
2619 if (mask & DRM_PCIE_SPEED_80)
2620 adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3;
2622 adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
2625 if (adev->pm.pcie_mlw_mask == 0) {
2626 ret = drm_pcie_get_max_link_width(adev->ddev, &mask);
2630 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
2631 CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
2632 CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
2633 CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
2634 CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
2635 CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
2636 CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
2639 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
2640 CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
2641 CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
2642 CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
2643 CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
2644 CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
2647 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
2648 CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
2649 CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
2650 CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
2651 CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
2654 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
2655 CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
2656 CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
2657 CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
2660 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
2661 CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
2662 CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
2665 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
2666 CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
2669 adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
2675 adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
2683 int amdgpu_debugfs_add_files(struct amdgpu_device *adev,
2684 const struct drm_info_list *files,
2689 for (i = 0; i < adev->debugfs_count; i++) {
2690 if (adev->debugfs[i].files == files) {
2691 /* Already registered */
2696 i = adev->debugfs_count + 1;
2697 if (i > AMDGPU_DEBUGFS_MAX_COMPONENTS) {
2698 DRM_ERROR("Reached maximum number of debugfs components.\n");
2699 DRM_ERROR("Report so we increase "
2700 "AMDGPU_DEBUGFS_MAX_COMPONENTS.\n");
2703 adev->debugfs[adev->debugfs_count].files = files;
2704 adev->debugfs[adev->debugfs_count].num_files = nfiles;
2705 adev->debugfs_count = i;
2706 #if defined(CONFIG_DEBUG_FS)
2707 drm_debugfs_create_files(files, nfiles,
2708 adev->ddev->primary->debugfs_root,
2709 adev->ddev->primary);
2714 #if defined(CONFIG_DEBUG_FS)
2716 static ssize_t amdgpu_debugfs_regs_read(struct file *f, char __user *buf,
2717 size_t size, loff_t *pos)
2719 struct amdgpu_device *adev = file_inode(f)->i_private;
2722 bool pm_pg_lock, use_bank;
2723 unsigned instance_bank, sh_bank, se_bank;
2725 if (size & 0x3 || *pos & 0x3)
2728 /* are we reading registers for which a PG lock is necessary? */
2729 pm_pg_lock = (*pos >> 23) & 1;
2731 if (*pos & (1ULL << 62)) {
2732 se_bank = (*pos >> 24) & 0x3FF;
2733 sh_bank = (*pos >> 34) & 0x3FF;
2734 instance_bank = (*pos >> 44) & 0x3FF;
2736 if (se_bank == 0x3FF)
2737 se_bank = 0xFFFFFFFF;
2738 if (sh_bank == 0x3FF)
2739 sh_bank = 0xFFFFFFFF;
2740 if (instance_bank == 0x3FF)
2741 instance_bank = 0xFFFFFFFF;
2747 *pos &= (1UL << 22) - 1;
2750 if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) ||
2751 (se_bank != 0xFFFFFFFF && se_bank >= adev->gfx.config.max_shader_engines))
2753 mutex_lock(&adev->grbm_idx_mutex);
2754 amdgpu_gfx_select_se_sh(adev, se_bank,
2755 sh_bank, instance_bank);
2759 mutex_lock(&adev->pm.mutex);
2764 if (*pos > adev->rmmio_size)
2767 value = RREG32(*pos >> 2);
2768 r = put_user(value, (uint32_t *)buf);
2782 amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
2783 mutex_unlock(&adev->grbm_idx_mutex);
2787 mutex_unlock(&adev->pm.mutex);
2792 static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf,
2793 size_t size, loff_t *pos)
2795 struct amdgpu_device *adev = file_inode(f)->i_private;
2798 bool pm_pg_lock, use_bank;
2799 unsigned instance_bank, sh_bank, se_bank;
2801 if (size & 0x3 || *pos & 0x3)
2804 /* are we reading registers for which a PG lock is necessary? */
2805 pm_pg_lock = (*pos >> 23) & 1;
2807 if (*pos & (1ULL << 62)) {
2808 se_bank = (*pos >> 24) & 0x3FF;
2809 sh_bank = (*pos >> 34) & 0x3FF;
2810 instance_bank = (*pos >> 44) & 0x3FF;
2812 if (se_bank == 0x3FF)
2813 se_bank = 0xFFFFFFFF;
2814 if (sh_bank == 0x3FF)
2815 sh_bank = 0xFFFFFFFF;
2816 if (instance_bank == 0x3FF)
2817 instance_bank = 0xFFFFFFFF;
2823 *pos &= (1UL << 22) - 1;
2826 if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) ||
2827 (se_bank != 0xFFFFFFFF && se_bank >= adev->gfx.config.max_shader_engines))
2829 mutex_lock(&adev->grbm_idx_mutex);
2830 amdgpu_gfx_select_se_sh(adev, se_bank,
2831 sh_bank, instance_bank);
2835 mutex_lock(&adev->pm.mutex);
2840 if (*pos > adev->rmmio_size)
2843 r = get_user(value, (uint32_t *)buf);
2847 WREG32(*pos >> 2, value);
2856 amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
2857 mutex_unlock(&adev->grbm_idx_mutex);
2861 mutex_unlock(&adev->pm.mutex);
2866 static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf,
2867 size_t size, loff_t *pos)
2869 struct amdgpu_device *adev = file_inode(f)->i_private;
2873 if (size & 0x3 || *pos & 0x3)
2879 value = RREG32_PCIE(*pos >> 2);
2880 r = put_user(value, (uint32_t *)buf);
2893 static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user *buf,
2894 size_t size, loff_t *pos)
2896 struct amdgpu_device *adev = file_inode(f)->i_private;
2900 if (size & 0x3 || *pos & 0x3)
2906 r = get_user(value, (uint32_t *)buf);
2910 WREG32_PCIE(*pos >> 2, value);
2921 static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
2922 size_t size, loff_t *pos)
2924 struct amdgpu_device *adev = file_inode(f)->i_private;
2928 if (size & 0x3 || *pos & 0x3)
2934 value = RREG32_DIDT(*pos >> 2);
2935 r = put_user(value, (uint32_t *)buf);
2948 static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user *buf,
2949 size_t size, loff_t *pos)
2951 struct amdgpu_device *adev = file_inode(f)->i_private;
2955 if (size & 0x3 || *pos & 0x3)
2961 r = get_user(value, (uint32_t *)buf);
2965 WREG32_DIDT(*pos >> 2, value);
2976 static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
2977 size_t size, loff_t *pos)
2979 struct amdgpu_device *adev = file_inode(f)->i_private;
2983 if (size & 0x3 || *pos & 0x3)
2989 value = RREG32_SMC(*pos);
2990 r = put_user(value, (uint32_t *)buf);
3003 static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *buf,
3004 size_t size, loff_t *pos)
3006 struct amdgpu_device *adev = file_inode(f)->i_private;
3010 if (size & 0x3 || *pos & 0x3)
3016 r = get_user(value, (uint32_t *)buf);
3020 WREG32_SMC(*pos, value);
3031 static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf,
3032 size_t size, loff_t *pos)
3034 struct amdgpu_device *adev = file_inode(f)->i_private;
3037 uint32_t *config, no_regs = 0;
3039 if (size & 0x3 || *pos & 0x3)
3042 config = kmalloc_array(256, sizeof(*config), GFP_KERNEL);
3046 /* version, increment each time something is added */
3047 config[no_regs++] = 3;
3048 config[no_regs++] = adev->gfx.config.max_shader_engines;
3049 config[no_regs++] = adev->gfx.config.max_tile_pipes;
3050 config[no_regs++] = adev->gfx.config.max_cu_per_sh;
3051 config[no_regs++] = adev->gfx.config.max_sh_per_se;
3052 config[no_regs++] = adev->gfx.config.max_backends_per_se;
3053 config[no_regs++] = adev->gfx.config.max_texture_channel_caches;
3054 config[no_regs++] = adev->gfx.config.max_gprs;
3055 config[no_regs++] = adev->gfx.config.max_gs_threads;
3056 config[no_regs++] = adev->gfx.config.max_hw_contexts;
3057 config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_frontend;
3058 config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_backend;
3059 config[no_regs++] = adev->gfx.config.sc_hiz_tile_fifo_size;
3060 config[no_regs++] = adev->gfx.config.sc_earlyz_tile_fifo_size;
3061 config[no_regs++] = adev->gfx.config.num_tile_pipes;
3062 config[no_regs++] = adev->gfx.config.backend_enable_mask;
3063 config[no_regs++] = adev->gfx.config.mem_max_burst_length_bytes;
3064 config[no_regs++] = adev->gfx.config.mem_row_size_in_kb;
3065 config[no_regs++] = adev->gfx.config.shader_engine_tile_size;
3066 config[no_regs++] = adev->gfx.config.num_gpus;
3067 config[no_regs++] = adev->gfx.config.multi_gpu_tile_size;
3068 config[no_regs++] = adev->gfx.config.mc_arb_ramcfg;
3069 config[no_regs++] = adev->gfx.config.gb_addr_config;
3070 config[no_regs++] = adev->gfx.config.num_rbs;
3073 config[no_regs++] = adev->rev_id;
3074 config[no_regs++] = adev->pg_flags;
3075 config[no_regs++] = adev->cg_flags;
3078 config[no_regs++] = adev->family;
3079 config[no_regs++] = adev->external_rev_id;
3082 config[no_regs++] = adev->pdev->device;
3083 config[no_regs++] = adev->pdev->revision;
3084 config[no_regs++] = adev->pdev->subsystem_device;
3085 config[no_regs++] = adev->pdev->subsystem_vendor;
3087 while (size && (*pos < no_regs * 4)) {
3090 value = config[*pos >> 2];
3091 r = put_user(value, (uint32_t *)buf);
3107 static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf,
3108 size_t size, loff_t *pos)
3110 struct amdgpu_device *adev = file_inode(f)->i_private;
3111 int idx, x, outsize, r, valuesize;
3112 uint32_t values[16];
3114 if (size & 3 || *pos & 0x3)
3117 if (amdgpu_dpm == 0)
3120 /* convert offset to sensor number */
3123 valuesize = sizeof(values);
3124 if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor)
3125 r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &values[0], &valuesize);
3126 else if (adev->pm.funcs && adev->pm.funcs->read_sensor)
3127 r = adev->pm.funcs->read_sensor(adev, idx, &values[0],
3132 if (size > valuesize)
3139 r = put_user(values[x++], (int32_t *)buf);
3146 return !r ? outsize : r;
3149 static ssize_t amdgpu_debugfs_wave_read(struct file *f, char __user *buf,
3150 size_t size, loff_t *pos)
3152 struct amdgpu_device *adev = f->f_inode->i_private;
3155 uint32_t offset, se, sh, cu, wave, simd, data[32];
3157 if (size & 3 || *pos & 3)
3161 offset = (*pos & 0x7F);
3162 se = ((*pos >> 7) & 0xFF);
3163 sh = ((*pos >> 15) & 0xFF);
3164 cu = ((*pos >> 23) & 0xFF);
3165 wave = ((*pos >> 31) & 0xFF);
3166 simd = ((*pos >> 37) & 0xFF);
3168 /* switch to the specific se/sh/cu */
3169 mutex_lock(&adev->grbm_idx_mutex);
3170 amdgpu_gfx_select_se_sh(adev, se, sh, cu);
3173 if (adev->gfx.funcs->read_wave_data)
3174 adev->gfx.funcs->read_wave_data(adev, simd, wave, data, &x);
3176 amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
3177 mutex_unlock(&adev->grbm_idx_mutex);
3182 while (size && (offset < x * 4)) {
3185 value = data[offset >> 2];
3186 r = put_user(value, (uint32_t *)buf);
3199 static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
3200 size_t size, loff_t *pos)
3202 struct amdgpu_device *adev = f->f_inode->i_private;
3205 uint32_t offset, se, sh, cu, wave, simd, thread, bank, *data;
3207 if (size & 3 || *pos & 3)
3211 offset = (*pos & 0xFFF); /* in dwords */
3212 se = ((*pos >> 12) & 0xFF);
3213 sh = ((*pos >> 20) & 0xFF);
3214 cu = ((*pos >> 28) & 0xFF);
3215 wave = ((*pos >> 36) & 0xFF);
3216 simd = ((*pos >> 44) & 0xFF);
3217 thread = ((*pos >> 52) & 0xFF);
3218 bank = ((*pos >> 60) & 1);
3220 data = kmalloc_array(1024, sizeof(*data), GFP_KERNEL);
3224 /* switch to the specific se/sh/cu */
3225 mutex_lock(&adev->grbm_idx_mutex);
3226 amdgpu_gfx_select_se_sh(adev, se, sh, cu);
3229 if (adev->gfx.funcs->read_wave_vgprs)
3230 adev->gfx.funcs->read_wave_vgprs(adev, simd, wave, thread, offset, size>>2, data);
3232 if (adev->gfx.funcs->read_wave_sgprs)
3233 adev->gfx.funcs->read_wave_sgprs(adev, simd, wave, offset, size>>2, data);
3236 amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
3237 mutex_unlock(&adev->grbm_idx_mutex);
3242 value = data[offset++];
3243 r = put_user(value, (uint32_t *)buf);
3259 static const struct file_operations amdgpu_debugfs_regs_fops = {
3260 .owner = THIS_MODULE,
3261 .read = amdgpu_debugfs_regs_read,
3262 .write = amdgpu_debugfs_regs_write,
3263 .llseek = default_llseek
3265 static const struct file_operations amdgpu_debugfs_regs_didt_fops = {
3266 .owner = THIS_MODULE,
3267 .read = amdgpu_debugfs_regs_didt_read,
3268 .write = amdgpu_debugfs_regs_didt_write,
3269 .llseek = default_llseek
3271 static const struct file_operations amdgpu_debugfs_regs_pcie_fops = {
3272 .owner = THIS_MODULE,
3273 .read = amdgpu_debugfs_regs_pcie_read,
3274 .write = amdgpu_debugfs_regs_pcie_write,
3275 .llseek = default_llseek
3277 static const struct file_operations amdgpu_debugfs_regs_smc_fops = {
3278 .owner = THIS_MODULE,
3279 .read = amdgpu_debugfs_regs_smc_read,
3280 .write = amdgpu_debugfs_regs_smc_write,
3281 .llseek = default_llseek
3284 static const struct file_operations amdgpu_debugfs_gca_config_fops = {
3285 .owner = THIS_MODULE,
3286 .read = amdgpu_debugfs_gca_config_read,
3287 .llseek = default_llseek
3290 static const struct file_operations amdgpu_debugfs_sensors_fops = {
3291 .owner = THIS_MODULE,
3292 .read = amdgpu_debugfs_sensor_read,
3293 .llseek = default_llseek
3296 static const struct file_operations amdgpu_debugfs_wave_fops = {
3297 .owner = THIS_MODULE,
3298 .read = amdgpu_debugfs_wave_read,
3299 .llseek = default_llseek
3301 static const struct file_operations amdgpu_debugfs_gpr_fops = {
3302 .owner = THIS_MODULE,
3303 .read = amdgpu_debugfs_gpr_read,
3304 .llseek = default_llseek
3307 static const struct file_operations *debugfs_regs[] = {
3308 &amdgpu_debugfs_regs_fops,
3309 &amdgpu_debugfs_regs_didt_fops,
3310 &amdgpu_debugfs_regs_pcie_fops,
3311 &amdgpu_debugfs_regs_smc_fops,
3312 &amdgpu_debugfs_gca_config_fops,
3313 &amdgpu_debugfs_sensors_fops,
3314 &amdgpu_debugfs_wave_fops,
3315 &amdgpu_debugfs_gpr_fops,
3318 static const char *debugfs_regs_names[] = {
3323 "amdgpu_gca_config",
3329 static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
3331 struct drm_minor *minor = adev->ddev->primary;
3332 struct dentry *ent, *root = minor->debugfs_root;
3335 for (i = 0; i < ARRAY_SIZE(debugfs_regs); i++) {
3336 ent = debugfs_create_file(debugfs_regs_names[i],
3337 S_IFREG | S_IRUGO, root,
3338 adev, debugfs_regs[i]);
3340 for (j = 0; j < i; j++) {
3341 debugfs_remove(adev->debugfs_regs[i]);
3342 adev->debugfs_regs[i] = NULL;
3344 return PTR_ERR(ent);
3348 i_size_write(ent->d_inode, adev->rmmio_size);
3349 adev->debugfs_regs[i] = ent;
3355 static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev)
3359 for (i = 0; i < ARRAY_SIZE(debugfs_regs); i++) {
3360 if (adev->debugfs_regs[i]) {
3361 debugfs_remove(adev->debugfs_regs[i]);
3362 adev->debugfs_regs[i] = NULL;
3367 int amdgpu_debugfs_init(struct drm_minor *minor)
3372 static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
3376 static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { }