From 5c1354bd30c118326236e13cfdc49db03d2b5855 Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Tue, 30 Aug 2016 16:13:10 +0800 Subject: [PATCH] drm/amdgpu: link all gtt when binding them V2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit V2: spin lock instead of mutex for gtt list Signed-off-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 ++++ drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++++ drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 +++++++++ 3 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 86762cd..829b0b4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -2121,6 +2121,10 @@ struct amdgpu_device { /* link all shadow bo */ struct list_head shadow_list; struct mutex shadow_list_lock; + /* link all gtt */ + spinlock_t gtt_list_lock; + struct list_head gtt_list; + }; bool amdgpu_device_is_px(struct drm_device *dev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index f95bcb8..bfdd445 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1577,6 +1577,9 @@ int amdgpu_device_init(struct amdgpu_device *adev, INIT_LIST_HEAD(&adev->shadow_list); mutex_init(&adev->shadow_list_lock); + INIT_LIST_HEAD(&adev->gtt_list); + spin_lock_init(&adev->gtt_list_lock); + if (adev->asic_type >= CHIP_BONAIRE) { adev->rmmio_base = pci_resource_start(adev->pdev, 5); adev->rmmio_size = pci_resource_len(adev->pdev, 5); @@ -1584,6 +1587,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, adev->rmmio_base = pci_resource_start(adev->pdev, 2); adev->rmmio_size = pci_resource_len(adev->pdev, 2); } + adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size); if (adev->rmmio == NULL) { return -ENOMEM; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 5447973..26ca3dd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -520,6 +520,7 @@ struct amdgpu_ttm_tt { spinlock_t guptasklock; struct list_head guptasks; atomic_t mmu_invalidations; + struct list_head list; }; int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages) @@ -666,6 +667,9 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm, ttm->num_pages, (unsigned)gtt->offset); return r; } + spin_lock(>t->adev->gtt_list_lock); + list_add_tail(>t->list, >t->adev->gtt_list); + spin_unlock(>t->adev->gtt_list_lock); return 0; } @@ -680,6 +684,10 @@ static int amdgpu_ttm_backend_unbind(struct ttm_tt *ttm) if (gtt->userptr) amdgpu_ttm_tt_unpin_userptr(ttm); + spin_lock(>t->adev->gtt_list_lock); + list_del_init(>t->list); + spin_unlock(>t->adev->gtt_list_lock); + return 0; } @@ -716,6 +724,7 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_bo_device *bdev, kfree(gtt); return NULL; } + INIT_LIST_HEAD(>t->list); return >t->ttm.ttm; } -- 2.7.4