From 66257db7a5276d7f1aff8850388a0eb675ffa2e1 Mon Sep 17 00:00:00 2001 From: Nicolai Hähnle Date: Thu, 15 Dec 2016 17:23:49 +0100 Subject: drm/ttm: add evict parameter to ttm_bo_driver::move_notify MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Ensure that the driver can listen to evictions even when they don't take the path through ttm_bo_driver::move. This is crucial for amdgpu, which relies on an eviction counter to skip re-binding page tables when possible. Signed-off-by: Nicolai Hähnle Reviewed-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher --- include/drm/ttm/ttm_bo_driver.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'include/drm') diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index cdbdb40eb5bd..8b4bec7bd57b 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -431,9 +431,15 @@ struct ttm_bo_driver { int (*verify_access)(struct ttm_buffer_object *bo, struct file *filp); - /* hook to notify driver about a driver move so it - * can do tiling things */ + /** + * Hook to notify driver about a driver move so it + * can do tiling things and book-keeping. + * + * @evict: whether this move is evicting the buffer from the graphics + * address space + */ void (*move_notify)(struct ttm_buffer_object *bo, + bool evict, struct ttm_mem_reg *new_mem); /* notify the driver we are taking a fault on this BO * and have reserved it */ -- cgit v1.2.3 From cf6c467d67d319e239aec57d7ba31cb9946f29bf Mon Sep 17 00:00:00 2001 From: Christian König Date: Tue, 10 Jan 2017 14:08:28 +0100 Subject: drm/ttm: add BO priorities for the LRUs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This way the driver can specify a priority for a BO which has the effect that a BO is only evicted when all other BOs with a lower priority are evicted first. Reviewed-by: Sinclair Yeh Signed-off-by: Christian König Reviewed-by: Roger.He Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 +- drivers/gpu/drm/ttm/ttm_bo.c | 67 ++++++++++++++++++++++----------- include/drm/ttm/ttm_bo_api.h | 2 + include/drm/ttm/ttm_bo_driver.h | 6 ++- 4 files changed, 52 insertions(+), 27 deletions(-) (limited to 'include/drm') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 25568079fda4..d53445074897 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1166,8 +1166,8 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) struct amdgpu_mman_lru *lru = &adev->mman.log2_size[i]; for (j = 0; j < TTM_NUM_MEM_TYPES; ++j) - lru->lru[j] = &adev->mman.bdev.man[j].lru; - lru->swap_lru = &adev->mman.bdev.glob->swap_lru; + lru->lru[j] = &adev->mman.bdev.man[j].lru[0]; + lru->swap_lru = &adev->mman.bdev.glob->swap_lru[0]; } for (j = 0; j < TTM_NUM_MEM_TYPES; ++j) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 89bbcf0300f4..0b287d8947a4 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -242,13 +242,13 @@ EXPORT_SYMBOL(ttm_bo_move_to_lru_tail); struct list_head *ttm_bo_default_lru_tail(struct ttm_buffer_object *bo) { - return bo->bdev->man[bo->mem.mem_type].lru.prev; + return bo->bdev->man[bo->mem.mem_type].lru[bo->priority].prev; } EXPORT_SYMBOL(ttm_bo_default_lru_tail); struct list_head *ttm_bo_default_swap_lru_tail(struct ttm_buffer_object *bo) { - return bo->glob->swap_lru.prev; + return bo->glob->swap_lru[bo->priority].prev; } EXPORT_SYMBOL(ttm_bo_default_swap_lru_tail); @@ -741,20 +741,27 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev, struct ttm_mem_type_manager *man = &bdev->man[mem_type]; struct ttm_buffer_object *bo; int ret = -EBUSY, put_count; + unsigned i; spin_lock(&glob->lru_lock); - list_for_each_entry(bo, &man->lru, lru) { - ret = __ttm_bo_reserve(bo, false, true, NULL); - if (ret) - continue; + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) { + list_for_each_entry(bo, &man->lru[i], lru) { + ret = __ttm_bo_reserve(bo, false, true, NULL); + if (ret) + continue; - if (place && !bdev->driver->eviction_valuable(bo, place)) { - __ttm_bo_unreserve(bo); - ret = -EBUSY; - continue; + if (place && !bdev->driver->eviction_valuable(bo, + place)) { + __ttm_bo_unreserve(bo); + ret = -EBUSY; + continue; + } + + break; } - break; + if (!ret) + break; } if (ret) { @@ -1197,6 +1204,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, } atomic_inc(&bo->glob->bo_count); drm_vma_node_reset(&bo->vma_node); + bo->priority = 0; /* * For ttm_bo_type_device buffers, allocate @@ -1297,18 +1305,21 @@ static int ttm_bo_force_list_clean(struct ttm_bo_device *bdev, struct ttm_bo_global *glob = bdev->glob; struct dma_fence *fence; int ret; + unsigned i; /* * Can't use standard list traversal since we're unlocking. */ spin_lock(&glob->lru_lock); - while (!list_empty(&man->lru)) { - spin_unlock(&glob->lru_lock); - ret = ttm_mem_evict_first(bdev, mem_type, NULL, false, false); - if (ret) - return ret; - spin_lock(&glob->lru_lock); + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) { + while (!list_empty(&man->lru[i])) { + spin_unlock(&glob->lru_lock); + ret = ttm_mem_evict_first(bdev, mem_type, NULL, false, false); + if (ret) + return ret; + spin_lock(&glob->lru_lock); + } } spin_unlock(&glob->lru_lock); @@ -1385,6 +1396,7 @@ int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type, { int ret = -EINVAL; struct ttm_mem_type_manager *man; + unsigned i; BUG_ON(type >= TTM_NUM_MEM_TYPES); man = &bdev->man[type]; @@ -1410,7 +1422,8 @@ int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type, man->use_type = true; man->size = p_size; - INIT_LIST_HEAD(&man->lru); + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) + INIT_LIST_HEAD(&man->lru[i]); man->move = NULL; return 0; @@ -1442,6 +1455,7 @@ int ttm_bo_global_init(struct drm_global_reference *ref) container_of(ref, struct ttm_bo_global_ref, ref); struct ttm_bo_global *glob = ref->object; int ret; + unsigned i; mutex_init(&glob->device_list_mutex); spin_lock_init(&glob->lru_lock); @@ -1453,7 +1467,8 @@ int ttm_bo_global_init(struct drm_global_reference *ref) goto out_no_drp; } - INIT_LIST_HEAD(&glob->swap_lru); + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) + INIT_LIST_HEAD(&glob->swap_lru[i]); INIT_LIST_HEAD(&glob->device_list); ttm_mem_init_shrink(&glob->shrink, ttm_bo_swapout); @@ -1512,8 +1527,9 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev) if (list_empty(&bdev->ddestroy)) TTM_DEBUG("Delayed destroy list was clean\n"); - if (list_empty(&bdev->man[0].lru)) - TTM_DEBUG("Swap list was clean\n"); + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) + if (list_empty(&bdev->man[0].lru[0])) + TTM_DEBUG("Swap list %d was clean\n", i); spin_unlock(&glob->lru_lock); drm_vma_offset_manager_destroy(&bdev->vma_manager); @@ -1665,10 +1681,15 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink) int ret = -EBUSY; int put_count; uint32_t swap_placement = (TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM); + unsigned i; spin_lock(&glob->lru_lock); - list_for_each_entry(bo, &glob->swap_lru, swap) { - ret = __ttm_bo_reserve(bo, false, true, NULL); + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) { + list_for_each_entry(bo, &glob->swap_lru[i], swap) { + ret = __ttm_bo_reserve(bo, false, true, NULL); + if (!ret) + break; + } if (!ret) break; } diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 652e45be97c8..c356df40ac49 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -215,6 +215,8 @@ struct ttm_buffer_object { struct drm_vma_offset_node vma_node; + unsigned priority; + /** * Special members that are protected by the reserve lock * and the bo::lock when written to. Can be read with diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 8b4bec7bd57b..c8407e737542 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -42,6 +42,8 @@ #include #include +#define TTM_MAX_BO_PRIORITY 16 + struct ttm_backend_func { /** * struct ttm_backend_func member bind @@ -298,7 +300,7 @@ struct ttm_mem_type_manager { * Protected by the global->lru_lock. */ - struct list_head lru; + struct list_head lru[TTM_MAX_BO_PRIORITY]; /* * Protected by @move_lock. @@ -518,7 +520,7 @@ struct ttm_bo_global { /** * Protected by the lru_lock. */ - struct list_head swap_lru; + struct list_head swap_lru[TTM_MAX_BO_PRIORITY]; /** * Internal protection. -- cgit v1.2.3 From 260498f2cdfcf3a3a266b212a86c9059623ffa32 Mon Sep 17 00:00:00 2001 From: Christian König Date: Thu, 12 Jan 2017 11:50:13 +0100 Subject: drm/ttm: revert "implement LRU add callbacks v2" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The additional housekeeping had too much CPU overhead, let's use the BO priorities instead. agd: also revert hibmc changes Reviewed-by: Sinclair Yeh Signed-off-by: Christian König Reviewed-and-Tested-by: Roger.He Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 -- drivers/gpu/drm/ast/ast_ttm.c | 2 -- drivers/gpu/drm/bochs/bochs_mm.c | 2 -- drivers/gpu/drm/cirrus/cirrus_ttm.c | 2 -- drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 2 -- drivers/gpu/drm/mgag200/mgag200_ttm.c | 2 -- drivers/gpu/drm/nouveau/nouveau_bo.c | 2 -- drivers/gpu/drm/qxl/qxl_ttm.c | 2 -- drivers/gpu/drm/radeon/radeon_ttm.c | 2 -- drivers/gpu/drm/ttm/ttm_bo.c | 19 +++++-------------- drivers/gpu/drm/virtio/virtgpu_ttm.c | 2 -- drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c | 2 -- include/drm/ttm/ttm_bo_driver.h | 9 --------- 13 files changed, 5 insertions(+), 45 deletions(-) (limited to 'include/drm') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 6b1f85b1a1cb..eebfc1d19b29 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1086,8 +1086,6 @@ static struct ttm_bo_driver amdgpu_bo_driver = { .fault_reserve_notify = &amdgpu_bo_fault_reserve_notify, .io_mem_reserve = &amdgpu_ttm_io_mem_reserve, .io_mem_free = &amdgpu_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int amdgpu_ttm_init(struct amdgpu_device *adev) diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index 2a1368fac1d1..50c910efa13d 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -236,8 +236,6 @@ struct ttm_bo_driver ast_bo_driver = { .verify_access = ast_bo_verify_access, .io_mem_reserve = &ast_ttm_io_mem_reserve, .io_mem_free = &ast_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int ast_mm_init(struct ast_private *ast) diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index ceb1fecf02dd..857755ac2d70 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -205,8 +205,6 @@ struct ttm_bo_driver bochs_bo_driver = { .verify_access = bochs_bo_verify_access, .io_mem_reserve = &bochs_ttm_io_mem_reserve, .io_mem_free = &bochs_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int bochs_mm_init(struct bochs_device *bochs) diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index d6da848f7c6f..f53aa8f4a143 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -236,8 +236,6 @@ struct ttm_bo_driver cirrus_bo_driver = { .verify_access = cirrus_bo_verify_access, .io_mem_reserve = &cirrus_ttm_io_mem_reserve, .io_mem_free = &cirrus_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int cirrus_mm_init(struct cirrus_device *cirrus) diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c index 3c6f750389fb..20732b62d4c9 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c @@ -243,8 +243,6 @@ struct ttm_bo_driver hibmc_bo_driver = { .verify_access = hibmc_bo_verify_access, .io_mem_reserve = &hibmc_ttm_io_mem_reserve, .io_mem_free = NULL, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int hibmc_mm_init(struct hibmc_drm_private *hibmc) diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 5e20220ef4c6..657598bb1e6b 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -236,8 +236,6 @@ struct ttm_bo_driver mgag200_bo_driver = { .verify_access = mgag200_bo_verify_access, .io_mem_reserve = &mgag200_ttm_io_mem_reserve, .io_mem_free = &mgag200_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int mgag200_mm_init(struct mga_device *mdev) diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 2435183a625c..8a528ebe30f3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1571,8 +1571,6 @@ struct ttm_bo_driver nouveau_bo_driver = { .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify, .io_mem_reserve = &nouveau_ttm_io_mem_reserve, .io_mem_free = &nouveau_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; struct nvkm_vma * diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index 4ecf97af29c4..3dcc48431015 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -394,8 +394,6 @@ static struct ttm_bo_driver qxl_bo_driver = { .io_mem_reserve = &qxl_ttm_io_mem_reserve, .io_mem_free = &qxl_ttm_io_mem_free, .move_notify = &qxl_bo_move_notify, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int qxl_ttm_init(struct qxl_device *qdev) diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 1888144d0fed..7e3eb8e80095 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -871,8 +871,6 @@ static struct ttm_bo_driver radeon_bo_driver = { .fault_reserve_notify = &radeon_bo_fault_reserve_notify, .io_mem_reserve = &radeon_ttm_io_mem_reserve, .io_mem_free = &radeon_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int radeon_ttm_init(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 0b287d8947a4..8c5c64d52af2 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -163,6 +163,7 @@ static void ttm_bo_release_list(struct kref *list_kref) void ttm_bo_add_to_lru(struct ttm_buffer_object *bo) { struct ttm_bo_device *bdev = bo->bdev; + struct ttm_mem_type_manager *man; lockdep_assert_held(&bo->resv->lock.base); @@ -170,11 +171,13 @@ void ttm_bo_add_to_lru(struct ttm_buffer_object *bo) BUG_ON(!list_empty(&bo->lru)); - list_add(&bo->lru, bdev->driver->lru_tail(bo)); + man = &bdev->man[bo->mem.mem_type]; + list_add_tail(&bo->lru, &man->lru[bo->priority]); kref_get(&bo->list_kref); if (bo->ttm && !(bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) { - list_add(&bo->swap, bdev->driver->swap_lru_tail(bo)); + list_add_tail(&bo->swap, + &bo->glob->swap_lru[bo->priority]); kref_get(&bo->list_kref); } } @@ -240,18 +243,6 @@ void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo) } EXPORT_SYMBOL(ttm_bo_move_to_lru_tail); -struct list_head *ttm_bo_default_lru_tail(struct ttm_buffer_object *bo) -{ - return bo->bdev->man[bo->mem.mem_type].lru[bo->priority].prev; -} -EXPORT_SYMBOL(ttm_bo_default_lru_tail); - -struct list_head *ttm_bo_default_swap_lru_tail(struct ttm_buffer_object *bo) -{ - return bo->glob->swap_lru[bo->priority].prev; -} -EXPORT_SYMBOL(ttm_bo_default_swap_lru_tail); - /* * Call bo->mutex locked. */ diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c index 07b0de530cb9..9cc7079f7aca 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ttm.c +++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c @@ -434,8 +434,6 @@ static struct ttm_bo_driver virtio_gpu_bo_driver = { .io_mem_free = &virtio_gpu_ttm_io_mem_free, .move_notify = &virtio_gpu_bo_move_notify, .swap_notify = &virtio_gpu_bo_swap_notify, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c index caa279b6b56f..1de96693f2a7 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c @@ -859,6 +859,4 @@ struct ttm_bo_driver vmw_bo_driver = { .fault_reserve_notify = &vmw_ttm_fault_reserve_notify, .io_mem_reserve = &vmw_ttm_io_mem_reserve, .io_mem_free = &vmw_ttm_io_mem_free, - .lru_tail = &ttm_bo_default_lru_tail, - .swap_lru_tail = &ttm_bo_default_swap_lru_tail, }; diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index c8407e737542..f1b243f112aa 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -468,12 +468,6 @@ struct ttm_bo_driver { * Called with LRU lock held immediately before the removal. */ void (*lru_removal)(struct ttm_buffer_object *bo); - - /** - * Return the list_head after which a BO should be inserted in the LRU. - */ - struct list_head *(*lru_tail)(struct ttm_buffer_object *bo); - struct list_head *(*swap_lru_tail)(struct ttm_buffer_object *bo); }; /** @@ -788,9 +782,6 @@ extern void ttm_mem_io_unlock(struct ttm_mem_type_manager *man); extern void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo); extern void ttm_bo_add_to_lru(struct ttm_buffer_object *bo); -struct list_head *ttm_bo_default_lru_tail(struct ttm_buffer_object *bo); -struct list_head *ttm_bo_default_swap_lru_tail(struct ttm_buffer_object *bo); - /** * __ttm_bo_reserve: * -- cgit v1.2.3 From 896d630d240e90850fdb094f75445823fe0e0849 Mon Sep 17 00:00:00 2001 From: Christian König Date: Thu, 12 Jan 2017 11:54:11 +0100 Subject: drm/ttm: revert "add optional LRU removal callback v2" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Without the custom LRU management the callback is not used any more. agd: fix trivial warning Reviewed-by: Sinclair Yeh Signed-off-by: Christian König Reviewed-and-Tested-by: Roger.He Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 13 +++++-------- include/drm/ttm/ttm_bo_driver.h | 6 ------ 2 files changed, 5 insertions(+), 14 deletions(-) (limited to 'include/drm') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 8c5c64d52af2..e7ab0264001d 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -186,12 +186,8 @@ EXPORT_SYMBOL(ttm_bo_add_to_lru); int ttm_bo_del_from_lru(struct ttm_buffer_object *bo) { - struct ttm_bo_device *bdev = bo->bdev; int put_count = 0; - if (bdev->driver->lru_removal) - bdev->driver->lru_removal(bo); - if (!list_empty(&bo->swap)) { list_del_init(&bo->swap); ++put_count; @@ -201,6 +197,11 @@ int ttm_bo_del_from_lru(struct ttm_buffer_object *bo) ++put_count; } + /* + * TODO: Add a driver hook to delete from + * driver-specific LRU's here. + */ + return put_count; } @@ -229,14 +230,10 @@ EXPORT_SYMBOL(ttm_bo_del_sub_from_lru); void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo) { - struct ttm_bo_device *bdev = bo->bdev; int put_count = 0; lockdep_assert_held(&bo->resv->lock.base); - if (bdev->driver->lru_removal) - bdev->driver->lru_removal(bo); - put_count = ttm_bo_del_from_lru(bo); ttm_bo_list_ref_sub(bo, put_count, true); ttm_bo_add_to_lru(bo); diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index f1b243f112aa..7e75fa053473 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -462,12 +462,6 @@ struct ttm_bo_driver { struct ttm_mem_reg *mem); void (*io_mem_free)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem); - - /** - * Optional driver callback for when BO is removed from the LRU. - * Called with LRU lock held immediately before the removal. - */ - void (*lru_removal)(struct ttm_buffer_object *bo); }; /** -- cgit v1.2.3