From 1b0c0f9dc5ca6c0c8be21eeac92c7aa77bbf1d33 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Tue, 5 Sep 2017 14:36:44 +0200 Subject: [PATCH] drm/amdgpu: move userptr BOs to CPU domain during CS v2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Instead of moving them in the MMU notifier move them during CS. v2: still mark pages as accessed/dirty Signed-off-by: Christian König Reviewed-by: Felix Kuehling (v1) Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 ++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c | 5 +---- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 27 +++++++++++++++++-------- 4 files changed, 27 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index f3e561136597..134a049f87bd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1794,6 +1794,7 @@ 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); void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages); +void amdgpu_ttm_tt_mark_user_pages(struct ttm_tt *ttm); int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr, uint32_t flags); bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 4d3f8fbfa59d..4877df83b801 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -475,6 +475,12 @@ static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p, /* Check if we have user pages and nobody bound the BO already */ if (amdgpu_ttm_tt_userptr_needs_pages(bo->tbo.ttm) && lobj->user_pages) { + amdgpu_ttm_placement_from_domain(bo, + AMDGPU_GEM_DOMAIN_CPU); + r = ttm_bo_validate(&bo->tbo, &bo->placement, true, + false); + if (r) + return r; amdgpu_ttm_tt_set_user_pages(bo->tbo.ttm, lobj->user_pages); binding_userptr = true; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c index 6558a3ed57a7..df85a1314799 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c @@ -137,10 +137,7 @@ static void amdgpu_mn_invalidate_node(struct amdgpu_mn_node *node, if (r <= 0) DRM_ERROR("(%ld) failed to wait for user bo\n", r); - amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_CPU); - r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); - if (r) - DRM_ERROR("(%ld) failed to validate user bo\n", r); + amdgpu_ttm_tt_mark_user_pages(bo->tbo.ttm); amdgpu_bo_unreserve(bo); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index e67785191032..fe887f361be8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -685,6 +685,24 @@ void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages) } } +void amdgpu_ttm_tt_mark_user_pages(struct ttm_tt *ttm) +{ + struct amdgpu_ttm_tt *gtt = (void *)ttm; + unsigned i; + + for (i = 0; i < ttm->num_pages; ++i) { + struct page *page = ttm->pages[i]; + + if (!page) + continue; + + if (!(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY)) + set_page_dirty(page); + + mark_page_accessed(page); + } +} + static void amdgpu_trace_dma_map(struct ttm_tt *ttm) { struct amdgpu_device *adev = amdgpu_ttm_adev(ttm->bdev); @@ -740,7 +758,6 @@ static void amdgpu_ttm_tt_unpin_userptr(struct ttm_tt *ttm) { struct amdgpu_device *adev = amdgpu_ttm_adev(ttm->bdev); struct amdgpu_ttm_tt *gtt = (void *)ttm; - struct sg_page_iter sg_iter; int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY); enum dma_data_direction direction = write ? @@ -753,13 +770,7 @@ static void amdgpu_ttm_tt_unpin_userptr(struct ttm_tt *ttm) /* free the sg table and pages again */ dma_unmap_sg(adev->dev, ttm->sg->sgl, ttm->sg->nents, direction); - for_each_sg_page(ttm->sg->sgl, &sg_iter, ttm->sg->nents, 0) { - struct page *page = sg_page_iter_page(&sg_iter); - if (!(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY)) - set_page_dirty(page); - - mark_page_accessed(page); - } + amdgpu_ttm_tt_mark_user_pages(ttm); amdgpu_trace_dma_unmap(ttm); -- 2.30.2