From fc9c8f5459f2dfa7f83bee3f388faaf570ef96ed Mon Sep 17 00:00:00 2001 From: Christian König Date: Thu, 29 Jun 2017 11:46:15 +0200 Subject: drm/amdgpu: add vm_needs_flush parameter to amdgpu_copy_buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This allows us to flush the system VM here. Signed-off-by: Christian König Reviewed-by: Alex Deucher Acked-by: Felix Kuehling --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 8ee69652be8c..c34cf2c1ae4e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -535,7 +535,7 @@ int amdgpu_bo_backup_to_shadow(struct amdgpu_device *adev, r = amdgpu_copy_buffer(ring, bo_addr, shadow_addr, amdgpu_bo_size(bo), resv, fence, - direct); + direct, false); if (!r) amdgpu_bo_fence(bo, *fence, true); @@ -588,7 +588,7 @@ int amdgpu_bo_restore_from_shadow(struct amdgpu_device *adev, r = amdgpu_copy_buffer(ring, shadow_addr, bo_addr, amdgpu_bo_size(bo), resv, fence, - direct); + direct, false); if (!r) amdgpu_bo_fence(bo, *fence, true); -- cgit v1.2.3 From 5327dd8acf05a48b01804af9e4fad90054c6cdb7 Mon Sep 17 00:00:00 2001 From: Christian König Date: Mon, 3 Jul 2017 15:21:42 +0200 Subject: drm/amdgpu: remove stale TODO comment MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit That is already fixed. Signed-off-by: Christian König Reviewed-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index c34cf2c1ae4e..a85e75327456 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -951,7 +951,6 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) size = bo->mem.num_pages << PAGE_SHIFT; offset = bo->mem.start << PAGE_SHIFT; - /* TODO: figure out how to map scattered VRAM to the CPU */ if ((offset + size) <= adev->mc.visible_vram_size) return 0; -- cgit v1.2.3 From 00f06b246a3056bbaa901a90a5a93c9f81ab8e36 Mon Sep 17 00:00:00 2001 From: John Brooks Date: Tue, 27 Jun 2017 22:33:18 -0400 Subject: drm/amdgpu: Throttle visible VRAM moves separately MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The BO move throttling code is designed to allow VRAM to fill quickly if it is relatively empty. However, this does not take into account situations where the visible VRAM is smaller than total VRAM, and total VRAM may not be close to full but the visible VRAM segment is under pressure. In such situations, visible VRAM would experience unrestricted swapping and performance would drop. Add a separate counter specifically for moves involving visible VRAM, and check it before moving BOs there. v2: Only perform calculations for separate counter if visible VRAM is smaller than total VRAM. (Michel Dänzer) v3: [Michel Dänzer] * Use BO's location rather than the AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED flag to determine whether to account a move for visible VRAM in most cases. * Use a single if (adev->mc.visible_vram_size < adev->mc.real_vram_size) { block in amdgpu_cs_get_threshold_for_moves. Fixes: 95844d20ae02 (drm/amdgpu: throttle buffer migrations at CS using a fixed MBps limit (v2)) Signed-off-by: John Brooks Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 +- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 92 ++++++++++++++++++++++++------ drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 12 +++- 3 files changed, 87 insertions(+), 23 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0d6b0617cdf0..c290b262d7da 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1117,7 +1117,9 @@ struct amdgpu_cs_parser { struct list_head validated; struct dma_fence *fence; uint64_t bytes_moved_threshold; + uint64_t bytes_moved_vis_threshold; uint64_t bytes_moved; + uint64_t bytes_moved_vis; struct amdgpu_bo_list_entry *evictable; /* user fence */ @@ -1555,6 +1557,7 @@ struct amdgpu_device { spinlock_t lock; s64 last_update_us; s64 accum_us; /* accumulated microseconds */ + s64 accum_us_vis; /* for visible VRAM */ u32 log2_max_MBps; } mm_stats; @@ -1846,7 +1849,8 @@ void amdgpu_pci_config_reset(struct amdgpu_device *adev); bool amdgpu_need_post(struct amdgpu_device *adev); void amdgpu_update_display_priority(struct amdgpu_device *adev); -void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes); +void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes, + u64 num_vis_bytes); void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain); bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo); int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 5599c01b265d..33789510e663 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -223,10 +223,11 @@ static s64 bytes_to_us(struct amdgpu_device *adev, u64 bytes) * ticks. The accumulated microseconds (us) are converted to bytes and * returned. */ -static u64 amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev) +static void amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev, + u64 *max_bytes, + u64 *max_vis_bytes) { s64 time_us, increment_us; - u64 max_bytes; u64 free_vram, total_vram, used_vram; /* Allow a maximum of 200 accumulated ms. This is basically per-IB @@ -238,8 +239,11 @@ static u64 amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev) */ const s64 us_upper_bound = 200000; - if (!adev->mm_stats.log2_max_MBps) - return 0; + if (!adev->mm_stats.log2_max_MBps) { + *max_bytes = 0; + *max_vis_bytes = 0; + return; + } total_vram = adev->mc.real_vram_size - adev->vram_pin_size; used_vram = atomic64_read(&adev->vram_usage); @@ -280,23 +284,45 @@ static u64 amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev) adev->mm_stats.accum_us = max(min_us, adev->mm_stats.accum_us); } - /* This returns 0 if the driver is in debt to disallow (optional) + /* This is set to 0 if the driver is in debt to disallow (optional) * buffer moves. */ - max_bytes = us_to_bytes(adev, adev->mm_stats.accum_us); + *max_bytes = us_to_bytes(adev, adev->mm_stats.accum_us); + + /* Do the same for visible VRAM if half of it is free */ + if (adev->mc.visible_vram_size < adev->mc.real_vram_size) { + u64 total_vis_vram = adev->mc.visible_vram_size; + u64 used_vis_vram = atomic64_read(&adev->vram_vis_usage); + + if (used_vis_vram < total_vis_vram) { + u64 free_vis_vram = total_vis_vram - used_vis_vram; + adev->mm_stats.accum_us_vis = min(adev->mm_stats.accum_us_vis + + increment_us, us_upper_bound); + + if (free_vis_vram >= total_vis_vram / 2) + adev->mm_stats.accum_us_vis = + max(bytes_to_us(adev, free_vis_vram / 2), + adev->mm_stats.accum_us_vis); + } + + *max_vis_bytes = us_to_bytes(adev, adev->mm_stats.accum_us_vis); + } else { + *max_vis_bytes = 0; + } spin_unlock(&adev->mm_stats.lock); - return max_bytes; } /* Report how many bytes have really been moved for the last command * submission. This can result in a debt that can stop buffer migrations * temporarily. */ -void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes) +void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes, + u64 num_vis_bytes) { spin_lock(&adev->mm_stats.lock); adev->mm_stats.accum_us -= bytes_to_us(adev, num_bytes); + adev->mm_stats.accum_us_vis -= bytes_to_us(adev, num_vis_bytes); spin_unlock(&adev->mm_stats.lock); } @@ -304,7 +330,7 @@ static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p, struct amdgpu_bo *bo) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); - u64 initial_bytes_moved; + u64 initial_bytes_moved, bytes_moved; uint32_t domain; int r; @@ -314,17 +340,35 @@ static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p, /* Don't move this buffer if we have depleted our allowance * to move it. Don't move anything if the threshold is zero. */ - if (p->bytes_moved < p->bytes_moved_threshold) - domain = bo->prefered_domains; - else + if (p->bytes_moved < p->bytes_moved_threshold) { + if (adev->mc.visible_vram_size < adev->mc.real_vram_size && + (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)) { + /* And don't move a CPU_ACCESS_REQUIRED BO to limited + * visible VRAM if we've depleted our allowance to do + * that. + */ + if (p->bytes_moved_vis < p->bytes_moved_vis_threshold) + domain = bo->prefered_domains; + else + domain = bo->allowed_domains; + } else { + domain = bo->prefered_domains; + } + } else { domain = bo->allowed_domains; + } retry: amdgpu_ttm_placement_from_domain(bo, domain); initial_bytes_moved = atomic64_read(&adev->num_bytes_moved); r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); - p->bytes_moved += atomic64_read(&adev->num_bytes_moved) - - initial_bytes_moved; + bytes_moved = atomic64_read(&adev->num_bytes_moved) - + initial_bytes_moved; + p->bytes_moved += bytes_moved; + if (adev->mc.visible_vram_size < adev->mc.real_vram_size && + bo->tbo.mem.mem_type == TTM_PL_VRAM && + bo->tbo.mem.start < adev->mc.visible_vram_size >> PAGE_SHIFT) + p->bytes_moved_vis += bytes_moved; if (unlikely(r == -ENOMEM) && domain != bo->allowed_domains) { domain = bo->allowed_domains; @@ -350,7 +394,8 @@ static bool amdgpu_cs_try_evict(struct amdgpu_cs_parser *p, struct amdgpu_bo_list_entry *candidate = p->evictable; struct amdgpu_bo *bo = candidate->robj; struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); - u64 initial_bytes_moved; + u64 initial_bytes_moved, bytes_moved; + bool update_bytes_moved_vis; uint32_t other; /* If we reached our current BO we can forget it */ @@ -370,10 +415,17 @@ static bool amdgpu_cs_try_evict(struct amdgpu_cs_parser *p, /* Good we can try to move this BO somewhere else */ amdgpu_ttm_placement_from_domain(bo, other); + update_bytes_moved_vis = + adev->mc.visible_vram_size < adev->mc.real_vram_size && + bo->tbo.mem.mem_type == TTM_PL_VRAM && + bo->tbo.mem.start < adev->mc.visible_vram_size >> PAGE_SHIFT; initial_bytes_moved = atomic64_read(&adev->num_bytes_moved); r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); - p->bytes_moved += atomic64_read(&adev->num_bytes_moved) - + bytes_moved = atomic64_read(&adev->num_bytes_moved) - initial_bytes_moved; + p->bytes_moved += bytes_moved; + if (update_bytes_moved_vis) + p->bytes_moved_vis += bytes_moved; if (unlikely(r)) break; @@ -554,8 +606,10 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, list_splice(&need_pages, &p->validated); } - p->bytes_moved_threshold = amdgpu_cs_get_threshold_for_moves(p->adev); + amdgpu_cs_get_threshold_for_moves(p->adev, &p->bytes_moved_threshold, + &p->bytes_moved_vis_threshold); p->bytes_moved = 0; + p->bytes_moved_vis = 0; p->evictable = list_last_entry(&p->validated, struct amdgpu_bo_list_entry, tv.head); @@ -579,8 +633,8 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, goto error_validate; } - amdgpu_cs_report_moved_bytes(p->adev, p->bytes_moved); - + amdgpu_cs_report_moved_bytes(p->adev, p->bytes_moved, + p->bytes_moved_vis); fpriv->vm.last_eviction_counter = atomic64_read(&p->adev->num_evictions); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index a85e75327456..e429829ae93d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -322,7 +322,7 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, struct amdgpu_bo *bo; enum ttm_bo_type type; unsigned long page_align; - u64 initial_bytes_moved; + u64 initial_bytes_moved, bytes_moved; size_t acc_size; int r; @@ -398,8 +398,14 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, !kernel, NULL, acc_size, sg, resv, &amdgpu_ttm_bo_destroy); - amdgpu_cs_report_moved_bytes(adev, - atomic64_read(&adev->num_bytes_moved) - initial_bytes_moved); + bytes_moved = atomic64_read(&adev->num_bytes_moved) - + initial_bytes_moved; + if (adev->mc.visible_vram_size < adev->mc.real_vram_size && + bo->tbo.mem.mem_type == TTM_PL_VRAM && + bo->tbo.mem.start < adev->mc.visible_vram_size >> PAGE_SHIFT) + amdgpu_cs_report_moved_bytes(adev, bytes_moved, bytes_moved); + else + amdgpu_cs_report_moved_bytes(adev, bytes_moved, 0); if (unlikely(r != 0)) return r; -- cgit v1.2.3 From 96cf8271df546d0f4cfc9ddddbc42dce633e0190 Mon Sep 17 00:00:00 2001 From: John Brooks Date: Fri, 30 Jun 2017 11:31:08 -0400 Subject: drm/amdgpu: Set/clear CPU_ACCESS flag on page fault and move to VRAM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When a BO is moved to VRAM, clear AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED. This allows it to potentially later move to invisible VRAM if the CPU does not access it again. Setting the CPU_ACCESS flag in amdgpu_bo_fault_reserve_notify() also means that we can remove the loop to restrict lpfn to the end of visible VRAM, because amdgpu_ttm_placement_init() will do it for us. v3 [Michel Dänzer] * Use AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED instead of a new flag (Christian König) * Clear flag in amdgpu_bo_move instead of amdgpu_move_ram_vram (Christian) * Explicitly mention amdgpu_bo_fault_reserve_notify in amdgpu_bo_move * Also clear flag in amdgpu_bo_create_restricted Suggested-by: Michel Dänzer Signed-off-by: John Brooks Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 20 ++++++++++---------- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 +++++++++ 2 files changed, 19 insertions(+), 10 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index e429829ae93d..93601fbea695 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -432,6 +432,10 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev, trace_amdgpu_bo_create(bo); + /* Treat CPU_ACCESS_REQUIRED only as a hint if given by UMD */ + if (type == ttm_bo_type_device) + bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; + return 0; fail_unreserve: @@ -945,13 +949,17 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); struct amdgpu_bo *abo; - unsigned long offset, size, lpfn; - int i, r; + unsigned long offset, size; + int r; if (!amdgpu_ttm_bo_is_amdgpu_bo(bo)) return 0; abo = container_of(bo, struct amdgpu_bo, tbo); + + /* Remember that this BO was accessed by the CPU */ + abo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; + if (bo->mem.mem_type != TTM_PL_VRAM) return 0; @@ -967,14 +975,6 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) /* hurrah the memory is not visible ! */ atomic64_inc(&adev->num_vram_cpu_page_faults); amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM); - lpfn = adev->mc.visible_vram_size >> PAGE_SHIFT; - for (i = 0; i < abo->placement.num_placement; i++) { - /* Force into visible VRAM */ - if ((abo->placements[i].flags & TTM_PL_FLAG_VRAM) && - (!abo->placements[i].lpfn || - abo->placements[i].lpfn > lpfn)) - abo->placements[i].lpfn = lpfn; - } r = ttm_bo_validate(bo, &abo->placement, false, false); if (unlikely(r == -ENOMEM)) { amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index e238084b7142..9bbaffbd5f6a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -499,6 +499,15 @@ memcpy: } } + if (bo->type == ttm_bo_type_device && + new_mem->mem_type == TTM_PL_VRAM && + old_mem->mem_type != TTM_PL_VRAM) { + /* amdgpu_bo_fault_reserve_notify will re-set this if the CPU + * accesses the BO after it's moved. + */ + abo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; + } + /* update statistics */ atomic64_add((u64)bo->num_pages << PAGE_SHIFT, &adev->num_bytes_moved); return 0; -- cgit v1.2.3 From 41d9a6a728ea34d697dc74bc5fea1b6f6c5fce80 Mon Sep 17 00:00:00 2001 From: John Brooks Date: Tue, 27 Jun 2017 22:33:21 -0400 Subject: drm/amdgpu: Don't force BOs into visible VRAM for page faults MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is no need for page faults to force BOs into visible VRAM if it's full, and the time it takes to do so is great enough to cause noticeable stuttering. Add GTT as a possible placement so that if visible VRAM is full, page faults move BOs to GTT instead of evicting other BOs from VRAM. Suggested-by: Michel Dänzer Signed-off-by: John Brooks Reviewed-by: Michel Dänzer Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 93601fbea695..6e24339ecc46 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -974,18 +974,21 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) /* hurrah the memory is not visible ! */ atomic64_inc(&adev->num_vram_cpu_page_faults); - amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM); + amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM | + AMDGPU_GEM_DOMAIN_GTT); + + /* Avoid costly evictions; only set GTT as a busy placement */ + abo->placement.num_busy_placement = 1; + abo->placement.busy_placement = &abo->placements[1]; + r = ttm_bo_validate(bo, &abo->placement, false, false); - if (unlikely(r == -ENOMEM)) { - amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT); - return ttm_bo_validate(bo, &abo->placement, false, false); - } else if (unlikely(r != 0)) { + if (unlikely(r != 0)) return r; - } offset = bo->mem.start << PAGE_SHIFT; /* this should never happen */ - if ((offset + size) > adev->mc.visible_vram_size) + if (bo->mem.mem_type == TTM_PL_VRAM && + (offset + size) > adev->mc.visible_vram_size) return -EINVAL; return 0; -- cgit v1.2.3 From 6375bbb4d259416ad867ab887333ee88d1b90323 Mon Sep 17 00:00:00 2001 From: Christian König Date: Tue, 11 Jul 2017 17:25:49 +0200 Subject: drm/amdgpu: make sure BOs are always kunmapped MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When a BO is moved or destroyed it shouldn't be kmapped any more. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 6e24339ecc46..a019556a8e71 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -93,6 +93,7 @@ static void amdgpu_ttm_bo_destroy(struct ttm_buffer_object *tbo) bo = container_of(tbo, struct amdgpu_bo, tbo); + amdgpu_bo_kunmap(bo); amdgpu_update_memory_usage(adev, &bo->tbo.mem, NULL); drm_gem_object_release(&bo->gem_base); @@ -931,6 +932,8 @@ void amdgpu_bo_move_notify(struct ttm_buffer_object *bo, abo = container_of(bo, struct amdgpu_bo, tbo); amdgpu_vm_bo_invalidate(adev, abo); + amdgpu_bo_kunmap(abo); + /* remember the eviction */ if (evict) atomic64_inc(&adev->num_evictions); -- cgit v1.2.3 From 07306b4f5f7a8ba6a9de96420d3524dcc8698b00 Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Wed, 12 Jul 2017 12:36:47 +0800 Subject: drm/amdgpu: ttm_bind only when user needs gpu_addr in bo pin MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index a019556a8e71..3ec43cf9ad78 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -735,15 +735,16 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain, dev_err(adev->dev, "%p pin failed\n", bo); goto error; } - r = amdgpu_ttm_bind(&bo->tbo, &bo->tbo.mem); - if (unlikely(r)) { - dev_err(adev->dev, "%p bind failed\n", bo); - goto error; - } bo->pin_count = 1; - if (gpu_addr != NULL) + if (gpu_addr != NULL) { + r = amdgpu_ttm_bind(&bo->tbo, &bo->tbo.mem); + if (unlikely(r)) { + dev_err(adev->dev, "%p bind failed\n", bo); + goto error; + } *gpu_addr = amdgpu_bo_gpu_offset(bo); + } if (domain == AMDGPU_GEM_DOMAIN_VRAM) { adev->vram_pin_size += amdgpu_bo_size(bo); if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) -- cgit v1.2.3