From: Christian König Date: Tue, 30 Aug 2016 15:26:04 +0000 (+0200) Subject: drm/ttm: make eviction decision a driver callback v2 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a2ab19fed9d1dc5a7a2ced44f4b289885c522a8f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/ttm: make eviction decision a driver callback v2 This way the driver can decide if it is valuable to evict a BO or not. The current implementation is added as default to all existing drivers. v2: fix some typos found during internal testing Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 414fa8fa8488..fb646c44faae 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1109,6 +1109,7 @@ static struct ttm_bo_driver amdgpu_bo_driver = { .ttm_tt_unpopulate = &amdgpu_ttm_tt_unpopulate, .invalidate_caches = &amdgpu_invalidate_caches, .init_mem_type = &amdgpu_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = &amdgpu_evict_flags, .move = &amdgpu_bo_move, .verify_access = &amdgpu_verify_access, diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index 608df4c90520..7134fdf49210 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -230,6 +230,7 @@ struct ttm_bo_driver ast_bo_driver = { .ttm_tt_populate = ast_ttm_tt_populate, .ttm_tt_unpopulate = ast_ttm_tt_unpopulate, .init_mem_type = ast_bo_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = ast_bo_evict_flags, .move = NULL, .verify_access = ast_bo_verify_access, diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index 269cfca9ca06..099a3c688c26 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -199,6 +199,7 @@ struct ttm_bo_driver bochs_bo_driver = { .ttm_tt_populate = ttm_pool_populate, .ttm_tt_unpopulate = ttm_pool_unpopulate, .init_mem_type = bochs_bo_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = bochs_bo_evict_flags, .move = NULL, .verify_access = bochs_bo_verify_access, diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index bb2438dd8733..de52b20800e1 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -230,6 +230,7 @@ struct ttm_bo_driver cirrus_bo_driver = { .ttm_tt_populate = cirrus_ttm_tt_populate, .ttm_tt_unpopulate = cirrus_ttm_tt_unpopulate, .init_mem_type = cirrus_bo_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = cirrus_bo_evict_flags, .move = NULL, .verify_access = cirrus_bo_verify_access, diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 919b35f2ad24..83272b456329 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -230,6 +230,7 @@ struct ttm_bo_driver mgag200_bo_driver = { .ttm_tt_populate = mgag200_ttm_tt_populate, .ttm_tt_unpopulate = mgag200_ttm_tt_unpopulate, .init_mem_type = mgag200_bo_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = mgag200_bo_evict_flags, .move = NULL, .verify_access = mgag200_bo_verify_access, diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 343b8659472c..e395cb6f511f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1561,6 +1561,7 @@ struct ttm_bo_driver nouveau_bo_driver = { .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate, .invalidate_caches = nouveau_bo_invalidate_caches, .init_mem_type = nouveau_bo_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = nouveau_bo_evict_flags, .move_notify = nouveau_bo_move_ntfy, .move = nouveau_bo_move, diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index e26c82db948b..11761330a6b8 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -387,6 +387,7 @@ static struct ttm_bo_driver qxl_bo_driver = { .ttm_tt_unpopulate = &qxl_ttm_tt_unpopulate, .invalidate_caches = &qxl_invalidate_caches, .init_mem_type = &qxl_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = &qxl_evict_flags, .move = &qxl_bo_move, .verify_access = &qxl_verify_access, diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 3de5e6e21662..0cf03ccbf0a7 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -863,6 +863,7 @@ static struct ttm_bo_driver radeon_bo_driver = { .ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate, .invalidate_caches = &radeon_invalidate_caches, .init_mem_type = &radeon_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = &radeon_evict_flags, .move = &radeon_bo_move, .verify_access = &radeon_verify_access, diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index fc6217dfe401..31fcf11a2831 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -717,6 +717,20 @@ out: return ret; } +bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo, + const struct ttm_place *place) +{ + /* Don't evict this BO if it's outside of the + * requested placement range + */ + if (place->fpfn >= (bo->mem.start + bo->mem.size) || + (place->lpfn && place->lpfn <= bo->mem.start)) + return false; + + return true; +} +EXPORT_SYMBOL(ttm_bo_eviction_valuable); + static int ttm_mem_evict_first(struct ttm_bo_device *bdev, uint32_t mem_type, const struct ttm_place *place, @@ -731,21 +745,16 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev, spin_lock(&glob->lru_lock); list_for_each_entry(bo, &man->lru, lru) { ret = __ttm_bo_reserve(bo, false, true, NULL); - if (!ret) { - if (place && (place->fpfn || place->lpfn)) { - /* Don't evict this BO if it's outside of the - * requested placement range - */ - if (place->fpfn >= (bo->mem.start + bo->mem.size) || - (place->lpfn && place->lpfn <= bo->mem.start)) { - __ttm_bo_unreserve(bo); - ret = -EBUSY; - continue; - } - } + if (ret) + continue; - break; + if (place && !bdev->driver->eviction_valuable(bo, place)) { + __ttm_bo_unreserve(bo); + ret = -EBUSY; + continue; } + + break; } if (ret) { diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c index 80482ac5f95d..4a1de9f81193 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ttm.c +++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c @@ -425,6 +425,7 @@ static struct ttm_bo_driver virtio_gpu_bo_driver = { .ttm_tt_unpopulate = &virtio_gpu_ttm_tt_unpopulate, .invalidate_caches = &virtio_gpu_invalidate_caches, .init_mem_type = &virtio_gpu_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = &virtio_gpu_evict_flags, .move = &virtio_gpu_bo_move, .verify_access = &virtio_gpu_verify_access, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c index 78b75ee3c931..c894a48a74a6 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c @@ -849,6 +849,7 @@ struct ttm_bo_driver vmw_bo_driver = { .ttm_tt_unpopulate = &vmw_ttm_unpopulate, .invalidate_caches = vmw_invalidate_caches, .init_mem_type = vmw_init_mem_type, + .eviction_valuable = ttm_bo_eviction_valuable, .evict_flags = vmw_evict_flags, .move = NULL, .verify_access = vmw_verify_access, diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 9eb940d6755f..bb6a3357a817 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -47,6 +47,8 @@ struct drm_mm_node; struct ttm_placement; +struct ttm_place; + /** * struct ttm_bus_placement * @@ -395,6 +397,17 @@ extern int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev); extern void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched); +/** + * ttm_bo_eviction_valuable + * + * @bo: The buffer object to evict + * @place: the placement we need to make room for + * + * Check if it is valuable to evict the BO to make room for the given placement. + */ +bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo, + const struct ttm_place *place); + /** * ttm_bo_synccpu_write_grab * diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 7a76663d4045..d3d83dfe89e2 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -374,6 +374,18 @@ struct ttm_bo_driver { int (*invalidate_caches)(struct ttm_bo_device *bdev, uint32_t flags); int (*init_mem_type)(struct ttm_bo_device *bdev, uint32_t type, struct ttm_mem_type_manager *man); + + /** + * struct ttm_bo_driver member eviction_valuable + * + * @bo: the buffer object to be evicted + * @place: placement we need room for + * + * Check with the driver if it is valuable to evict a BO to make room + * for a certain placement. + */ + bool (*eviction_valuable)(struct ttm_buffer_object *bo, + const struct ttm_place *place); /** * struct ttm_bo_driver member evict_flags: *