From e55a5c9b5f5b80275a38293ac0fd38336dd2efdf Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Tue, 16 Oct 2018 10:04:08 +0200 Subject: drm/ttm: Rename ttm_bo_global_{init,release}() to ttm_bo_global_ref_{,}() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The functions ttm_bo_global_init() and ttm_bo_global_release() do not receive an argument of type struct ttm_bo_global. Both take a struct drm_global_reference that contains points to a struct ttm_bo_global_ref. Renaming them reflects this. Signed-off-by: Thomas Zimmermann Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 26b889f86670..9c2bb880491e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1522,16 +1522,16 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj) kfree(glob); } -void ttm_bo_global_release(struct drm_global_reference *ref) +void ttm_bo_global_ref_release(struct drm_global_reference *ref) { struct ttm_bo_global *glob = ref->object; kobject_del(&glob->kobj); kobject_put(&glob->kobj); } -EXPORT_SYMBOL(ttm_bo_global_release); +EXPORT_SYMBOL(ttm_bo_global_ref_release); -int ttm_bo_global_init(struct drm_global_reference *ref) +int ttm_bo_global_ref_init(struct drm_global_reference *ref) { struct ttm_bo_global_ref *bo_ref = container_of(ref, struct ttm_bo_global_ref, ref); @@ -1564,7 +1564,7 @@ out_no_drp: kfree(glob); return ret; } -EXPORT_SYMBOL(ttm_bo_global_init); +EXPORT_SYMBOL(ttm_bo_global_ref_init); int ttm_bo_device_release(struct ttm_bo_device *bdev) -- cgit From 105f20706fb5df8b763e3d9a9bfbfa73386391c3 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Tue, 16 Oct 2018 10:04:09 +0200 Subject: drm/ttm: Provide ttm_bo_global_{init/release}() for struct ttm_bo_global MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit So far, struct ttm_bo_global_ref was the only way of initializing a struct ttm_bo_global. Providing separate initializer and release functions for struct ttm_bo_global gives drivers the option of implementing their own init and release callbacks for drm_global_references of type DRM_GLOBAL_TTM_BO. The original functions for initializing and releasing via struct ttm_bo_global_ref are wrappers around the new interfaces. Signed-off-by: Thomas Zimmermann Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 16 +++++-------- include/drm/ttm/ttm_bo_driver.h | 53 ++++++++++++++++++++++++++++++++--------- 2 files changed, 48 insertions(+), 21 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 9c2bb880491e..9edece6510d3 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1522,26 +1522,22 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj) kfree(glob); } -void ttm_bo_global_ref_release(struct drm_global_reference *ref) +void ttm_bo_global_release(struct ttm_bo_global *glob) { - struct ttm_bo_global *glob = ref->object; - kobject_del(&glob->kobj); kobject_put(&glob->kobj); } -EXPORT_SYMBOL(ttm_bo_global_ref_release); +EXPORT_SYMBOL(ttm_bo_global_release); -int ttm_bo_global_ref_init(struct drm_global_reference *ref) +int ttm_bo_global_init(struct ttm_bo_global *glob, + struct ttm_mem_global *mem_glob) { - struct ttm_bo_global_ref *bo_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); - glob->mem_glob = bo_ref->mem_glob; + glob->mem_glob = mem_glob; glob->mem_glob->bo_glob = glob; glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32); @@ -1564,7 +1560,7 @@ out_no_drp: kfree(glob); return ret; } -EXPORT_SYMBOL(ttm_bo_global_ref_init); +EXPORT_SYMBOL(ttm_bo_global_init); int ttm_bo_device_release(struct ttm_bo_device *bdev) diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index c3c0751dec63..c6ee07d10281 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -384,15 +384,6 @@ struct ttm_bo_driver { void *buf, int len, int write); }; -/** - * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global. - */ - -struct ttm_bo_global_ref { - struct drm_global_reference ref; - struct ttm_mem_global *mem_glob; -}; - /** * struct ttm_bo_global - Buffer object driver global data. * @@ -578,8 +569,9 @@ void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); -void ttm_bo_global_ref_release(struct drm_global_reference *ref); -int ttm_bo_global_ref_init(struct drm_global_reference *ref); +void ttm_bo_global_release(struct ttm_bo_global *glob); +int ttm_bo_global_init(struct ttm_bo_global *glob, + struct ttm_mem_global *mem_glob); int ttm_bo_device_release(struct ttm_bo_device *bdev); @@ -897,4 +889,43 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp); extern const struct ttm_mem_type_manager_func ttm_bo_manager_func; +/** + * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global. + */ + +struct ttm_bo_global_ref { + struct drm_global_reference ref; + struct ttm_mem_global *mem_glob; +}; + +/** + * ttm_bo_global_ref_init + * + * @ref: DRM global reference + * + * Helper function that initializes a struct ttm_bo_global. This function + * is used as init call-back function for DRM global references of type + * DRM_GLOBAL_TTM_BO_REF. + */ +static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref) +{ + struct ttm_bo_global_ref *bo_ref = + container_of(ref, struct ttm_bo_global_ref, ref); + return ttm_bo_global_init(ref->object, bo_ref->mem_glob); +} + +/** + * ttm_bo_global_ref_release + * + * @ref: DRM global reference + * + * Helper function that releases a struct ttm_bo_global. This function + * is used as release call-back function for DRM global references of type + * DRM_GLOBAL_TTM_BO_REF. + */ +static inline void ttm_bo_global_ref_release(struct drm_global_reference *ref) +{ + ttm_bo_global_release(ref->object); +} + #endif -- cgit From 27eb1fa9130a98edd2b321d4dbce5c8b244ee7af Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 19 Oct 2018 13:49:05 +0200 Subject: drm/ttm: use a static ttm_mem_global instance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As the name says we only need one global instance of ttm_mem_global. Drop all the driver initialization and just use a single exported instance which is initialized during BO global initialization. Signed-off-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 44 ------------------------- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 1 - drivers/gpu/drm/ast/ast_drv.h | 1 - drivers/gpu/drm/ast/ast_ttm.c | 32 ++---------------- drivers/gpu/drm/bochs/bochs.h | 1 - drivers/gpu/drm/bochs/bochs_mm.c | 30 ++--------------- drivers/gpu/drm/cirrus/cirrus_drv.h | 1 - drivers/gpu/drm/cirrus/cirrus_ttm.c | 32 ++---------------- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 1 - drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 31 +++-------------- drivers/gpu/drm/mgag200/mgag200_drv.h | 1 - drivers/gpu/drm/mgag200/mgag200_ttm.c | 32 ++---------------- drivers/gpu/drm/nouveau/nouveau_drv.h | 1 - drivers/gpu/drm/nouveau/nouveau_ttm.c | 34 ++----------------- drivers/gpu/drm/qxl/qxl_drv.h | 1 - drivers/gpu/drm/qxl/qxl_ttm.c | 28 ---------------- drivers/gpu/drm/radeon/radeon.h | 1 - drivers/gpu/drm/radeon/radeon_ttm.c | 26 --------------- drivers/gpu/drm/ttm/ttm_bo.c | 10 ++++-- drivers/gpu/drm/ttm/ttm_memory.c | 5 +-- drivers/gpu/drm/virtio/virtgpu_drv.h | 1 - drivers/gpu/drm/virtio/virtgpu_ttm.c | 27 --------------- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 4 +-- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 3 +- drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c | 27 --------------- drivers/staging/vboxvideo/vbox_drv.h | 1 - drivers/staging/vboxvideo/vbox_ttm.c | 24 -------------- include/drm/ttm/ttm_bo_driver.h | 8 ++--- include/drm/ttm/ttm_memory.h | 4 +-- 29 files changed, 32 insertions(+), 380 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 3a6802846698..fda252022b15 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -65,33 +65,6 @@ static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev); * Global memory. */ -/** - * amdgpu_ttm_mem_global_init - Initialize and acquire reference to - * memory object - * - * @ref: Object for initialization. - * - * This is called by drm_global_item_ref() when an object is being - * initialized. - */ -static int amdgpu_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -/** - * amdgpu_ttm_mem_global_release - Drop reference to a memory object - * - * @ref: Object being removed - * - * This is called by drm_global_item_unref() when an object is being - * released. - */ -static void amdgpu_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - /** * amdgpu_ttm_global_init - Initialize global TTM memory reference structures. * @@ -108,20 +81,6 @@ static int amdgpu_ttm_global_init(struct amdgpu_device *adev) /* ensure reference is false in case init fails */ adev->mman.mem_global_referenced = false; - global_ref = &adev->mman.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &amdgpu_ttm_mem_global_init; - global_ref->release = &amdgpu_ttm_mem_global_release; - r = drm_global_item_ref(global_ref); - if (r) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - goto error_mem; - } - - adev->mman.bo_global_ref.mem_glob = - adev->mman.mem_global_ref.object; global_ref = &adev->mman.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -140,8 +99,6 @@ static int amdgpu_ttm_global_init(struct amdgpu_device *adev) return 0; error_bo: - drm_global_item_unref(&adev->mman.mem_global_ref); -error_mem: return r; } @@ -150,7 +107,6 @@ static void amdgpu_ttm_global_fini(struct amdgpu_device *adev) if (adev->mman.mem_global_referenced) { mutex_destroy(&adev->mman.gtt_window_lock); drm_global_item_unref(&adev->mman.bo_global_ref.ref); - drm_global_item_unref(&adev->mman.mem_global_ref); adev->mman.mem_global_referenced = false; } } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index fe8f276e9811..e114f209b701 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -40,7 +40,6 @@ struct amdgpu_mman { struct ttm_bo_global_ref bo_global_ref; - struct drm_global_reference mem_global_ref; struct ttm_bo_device bdev; bool mem_global_referenced; bool initialized; diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index e6c4cd3dc50e..6ae11a477643 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -104,7 +104,6 @@ struct ast_private { int fb_mtrr; struct { - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index d21fbd26785a..8a59d6fc1160 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -36,37 +36,11 @@ ast_bdev(struct ttm_bo_device *bd) return container_of(bd, struct ast_private, ttm.bdev); } -static int -ast_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void -ast_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int ast_ttm_global_init(struct ast_private *ast) { struct drm_global_reference *global_ref; int r; - global_ref = &ast->ttm.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &ast_ttm_mem_global_init; - global_ref->release = &ast_ttm_mem_global_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - ast->ttm.bo_global_ref.mem_glob = - ast->ttm.mem_global_ref.object; global_ref = &ast->ttm.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -75,7 +49,6 @@ static int ast_ttm_global_init(struct ast_private *ast) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&ast->ttm.mem_global_ref); return r; } return 0; @@ -84,12 +57,11 @@ static int ast_ttm_global_init(struct ast_private *ast) static void ast_ttm_global_release(struct ast_private *ast) { - if (ast->ttm.mem_global_ref.release == NULL) + if (ast->ttm.bo_global_ref.ref.release == NULL) return; drm_global_item_unref(&ast->ttm.bo_global_ref.ref); - drm_global_item_unref(&ast->ttm.mem_global_ref); - ast->ttm.mem_global_ref.release = NULL; + ast->ttm.bo_global_ref.ref.release = NULL; } diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h index e7a69077e45a..a035257d1b56 100644 --- a/drivers/gpu/drm/bochs/bochs.h +++ b/drivers/gpu/drm/bochs/bochs.h @@ -76,7 +76,6 @@ struct bochs_device { /* ttm */ struct { - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; bool initialized; diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index 2d36179c0e83..c697d456656f 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -16,35 +16,11 @@ static inline struct bochs_device *bochs_bdev(struct ttm_bo_device *bd) return container_of(bd, struct bochs_device, ttm.bdev); } -static int bochs_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void bochs_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int bochs_ttm_global_init(struct bochs_device *bochs) { struct drm_global_reference *global_ref; int r; - global_ref = &bochs->ttm.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &bochs_ttm_mem_global_init; - global_ref->release = &bochs_ttm_mem_global_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - bochs->ttm.bo_global_ref.mem_glob = - bochs->ttm.mem_global_ref.object; global_ref = &bochs->ttm.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -53,7 +29,6 @@ static int bochs_ttm_global_init(struct bochs_device *bochs) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&bochs->ttm.mem_global_ref); return r; } @@ -62,12 +37,11 @@ static int bochs_ttm_global_init(struct bochs_device *bochs) static void bochs_ttm_global_release(struct bochs_device *bochs) { - if (bochs->ttm.mem_global_ref.release == NULL) + if (bochs->ttm.bo_global_ref.ref.release == NULL) return; drm_global_item_unref(&bochs->ttm.bo_global_ref.ref); - drm_global_item_unref(&bochs->ttm.mem_global_ref); - bochs->ttm.mem_global_ref.release = NULL; + bochs->ttm.bo_global_ref.ref.release = NULL; } diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h index a29f87e98d9d..01852fbda9da 100644 --- a/drivers/gpu/drm/cirrus/cirrus_drv.h +++ b/drivers/gpu/drm/cirrus/cirrus_drv.h @@ -136,7 +136,6 @@ struct cirrus_device { int fb_mtrr; struct { - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index 2e2141f26c5b..7801c56c3c9b 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -36,37 +36,11 @@ cirrus_bdev(struct ttm_bo_device *bd) return container_of(bd, struct cirrus_device, ttm.bdev); } -static int -cirrus_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void -cirrus_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int cirrus_ttm_global_init(struct cirrus_device *cirrus) { struct drm_global_reference *global_ref; int r; - global_ref = &cirrus->ttm.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &cirrus_ttm_mem_global_init; - global_ref->release = &cirrus_ttm_mem_global_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - cirrus->ttm.bo_global_ref.mem_glob = - cirrus->ttm.mem_global_ref.object; global_ref = &cirrus->ttm.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -75,7 +49,6 @@ static int cirrus_ttm_global_init(struct cirrus_device *cirrus) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&cirrus->ttm.mem_global_ref); return r; } return 0; @@ -84,12 +57,11 @@ static int cirrus_ttm_global_init(struct cirrus_device *cirrus) static void cirrus_ttm_global_release(struct cirrus_device *cirrus) { - if (cirrus->ttm.mem_global_ref.release == NULL) + if (cirrus->ttm.bo_global_ref.ref.release == NULL) return; drm_global_item_unref(&cirrus->ttm.bo_global_ref.ref); - drm_global_item_unref(&cirrus->ttm.mem_global_ref); - cirrus->ttm.mem_global_ref.release = NULL; + cirrus->ttm.bo_global_ref.ref.release = NULL; } diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h index 45c25a488f42..60479502e277 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h @@ -49,7 +49,6 @@ struct hibmc_drm_private { bool mode_config_initialized; /* ttm */ - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; bool initialized; diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c index 0454aa43ffc6..14071c849121 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c @@ -29,34 +29,10 @@ hibmc_bdev(struct ttm_bo_device *bd) return container_of(bd, struct hibmc_drm_private, bdev); } -static int -hibmc_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void -hibmc_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int hibmc_ttm_global_init(struct hibmc_drm_private *hibmc) { int ret; - hibmc->mem_global_ref.global_type = DRM_GLOBAL_TTM_MEM; - hibmc->mem_global_ref.size = sizeof(struct ttm_mem_global); - hibmc->mem_global_ref.init = &hibmc_ttm_mem_global_init; - hibmc->mem_global_ref.release = &hibmc_ttm_mem_global_release; - ret = drm_global_item_ref(&hibmc->mem_global_ref); - if (ret) { - DRM_ERROR("could not get ref on ttm global: %d\n", ret); - return ret; - } - - hibmc->bo_global_ref.mem_glob = - hibmc->mem_global_ref.object; hibmc->bo_global_ref.ref.global_type = DRM_GLOBAL_TTM_BO; hibmc->bo_global_ref.ref.size = sizeof(struct ttm_bo_global); hibmc->bo_global_ref.ref.init = &ttm_bo_global_ref_init; @@ -64,7 +40,6 @@ static int hibmc_ttm_global_init(struct hibmc_drm_private *hibmc) ret = drm_global_item_ref(&hibmc->bo_global_ref.ref); if (ret) { DRM_ERROR("failed setting up TTM BO subsystem: %d\n", ret); - drm_global_item_unref(&hibmc->mem_global_ref); return ret; } return 0; @@ -73,9 +48,11 @@ static int hibmc_ttm_global_init(struct hibmc_drm_private *hibmc) static void hibmc_ttm_global_release(struct hibmc_drm_private *hibmc) { + if (hibmc->bo_global_ref.ref.release == NULL) + return; + drm_global_item_unref(&hibmc->bo_global_ref.ref); - drm_global_item_unref(&hibmc->mem_global_ref); - hibmc->mem_global_ref.release = NULL; + hibmc->bo_global_ref.ref.release = NULL; } static void hibmc_bo_ttm_destroy(struct ttm_buffer_object *tbo) diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 04f1dfba12e5..e5348955a3cc 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -212,7 +212,6 @@ struct mga_device { int fb_mtrr; struct { - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 3444b539e7f4..11bdc8121a7d 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -36,37 +36,11 @@ mgag200_bdev(struct ttm_bo_device *bd) return container_of(bd, struct mga_device, ttm.bdev); } -static int -mgag200_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void -mgag200_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int mgag200_ttm_global_init(struct mga_device *ast) { struct drm_global_reference *global_ref; int r; - global_ref = &ast->ttm.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &mgag200_ttm_mem_global_init; - global_ref->release = &mgag200_ttm_mem_global_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - ast->ttm.bo_global_ref.mem_glob = - ast->ttm.mem_global_ref.object; global_ref = &ast->ttm.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -75,7 +49,6 @@ static int mgag200_ttm_global_init(struct mga_device *ast) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&ast->ttm.mem_global_ref); return r; } return 0; @@ -84,12 +57,11 @@ static int mgag200_ttm_global_init(struct mga_device *ast) static void mgag200_ttm_global_release(struct mga_device *ast) { - if (ast->ttm.mem_global_ref.release == NULL) + if (ast->ttm.bo_global_ref.ref.release == NULL) return; drm_global_item_unref(&ast->ttm.bo_global_ref.ref); - drm_global_item_unref(&ast->ttm.mem_global_ref); - ast->ttm.mem_global_ref.release = NULL; + ast->ttm.bo_global_ref.ref.release = NULL; } diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 0b2191fa96f7..0f3bb1a11fc9 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -146,7 +146,6 @@ struct nouveau_drm { /* TTM interface support */ struct { - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; atomic_t validate_sequence; diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index a293383c8654..69448b02649e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -174,38 +174,12 @@ nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); } -static int -nouveau_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void -nouveau_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - int nouveau_ttm_global_init(struct nouveau_drm *drm) { struct drm_global_reference *global_ref; int ret; - global_ref = &drm->ttm.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &nouveau_ttm_mem_global_init; - global_ref->release = &nouveau_ttm_mem_global_release; - - ret = drm_global_item_ref(global_ref); - if (unlikely(ret != 0)) { - DRM_ERROR("Failed setting up TTM memory accounting\n"); - drm->ttm.mem_global_ref.release = NULL; - return ret; - } - - drm->ttm.bo_global_ref.mem_glob = global_ref->object; global_ref = &drm->ttm.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -215,8 +189,7 @@ nouveau_ttm_global_init(struct nouveau_drm *drm) ret = drm_global_item_ref(global_ref); if (unlikely(ret != 0)) { DRM_ERROR("Failed setting up TTM BO subsystem\n"); - drm_global_item_unref(&drm->ttm.mem_global_ref); - drm->ttm.mem_global_ref.release = NULL; + drm->ttm.bo_global_ref.ref.release = NULL; return ret; } @@ -226,12 +199,11 @@ nouveau_ttm_global_init(struct nouveau_drm *drm) void nouveau_ttm_global_release(struct nouveau_drm *drm) { - if (drm->ttm.mem_global_ref.release == NULL) + if (drm->ttm.bo_global_ref.ref.release == NULL) return; drm_global_item_unref(&drm->ttm.bo_global_ref.ref); - drm_global_item_unref(&drm->ttm.mem_global_ref); - drm->ttm.mem_global_ref.release = NULL; + drm->ttm.bo_global_ref.ref.release = NULL; } static int diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h index 8ff70a7281a7..52912e54e990 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.h +++ b/drivers/gpu/drm/qxl/qxl_drv.h @@ -128,7 +128,6 @@ struct qxl_output { struct qxl_mman { struct ttm_bo_global_ref bo_global_ref; - struct drm_global_reference mem_global_ref; bool mem_global_referenced; struct ttm_bo_device bdev; }; diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index db2a0036e9c4..bb8cc9b16780 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -46,37 +46,11 @@ static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev) return qdev; } -static int qxl_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void qxl_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int qxl_ttm_global_init(struct qxl_device *qdev) { struct drm_global_reference *global_ref; int r; - qdev->mman.mem_global_referenced = false; - global_ref = &qdev->mman.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &qxl_ttm_mem_global_init; - global_ref->release = &qxl_ttm_mem_global_release; - - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - qdev->mman.bo_global_ref.mem_glob = - qdev->mman.mem_global_ref.object; global_ref = &qdev->mman.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -85,7 +59,6 @@ static int qxl_ttm_global_init(struct qxl_device *qdev) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&qdev->mman.mem_global_ref); return r; } @@ -97,7 +70,6 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev) { if (qdev->mman.mem_global_referenced) { drm_global_item_unref(&qdev->mman.bo_global_ref.ref); - drm_global_item_unref(&qdev->mman.mem_global_ref); qdev->mman.mem_global_referenced = false; } } diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 1a6f6edb3515..06fb952b6290 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -449,7 +449,6 @@ struct radeon_surface_reg { */ struct radeon_mman { struct ttm_bo_global_ref bo_global_ref; - struct drm_global_reference mem_global_ref; struct ttm_bo_device bdev; bool mem_global_referenced; bool initialized; diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index dac4ec5a120b..2104429ddbac 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -64,36 +64,12 @@ static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev) /* * Global memory. */ -static int radeon_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void radeon_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int radeon_ttm_global_init(struct radeon_device *rdev) { struct drm_global_reference *global_ref; int r; rdev->mman.mem_global_referenced = false; - global_ref = &rdev->mman.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &radeon_ttm_mem_global_init; - global_ref->release = &radeon_ttm_mem_global_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - rdev->mman.bo_global_ref.mem_glob = - rdev->mman.mem_global_ref.object; global_ref = &rdev->mman.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -102,7 +78,6 @@ static int radeon_ttm_global_init(struct radeon_device *rdev) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&rdev->mman.mem_global_ref); return r; } @@ -114,7 +89,6 @@ static void radeon_ttm_global_fini(struct radeon_device *rdev) { if (rdev->mman.mem_global_referenced) { drm_global_item_unref(&rdev->mman.bo_global_ref.ref); - drm_global_item_unref(&rdev->mman.mem_global_ref); rdev->mman.mem_global_referenced = false; } } diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 9edece6510d3..3006050b1720 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1526,18 +1526,22 @@ void ttm_bo_global_release(struct ttm_bo_global *glob) { kobject_del(&glob->kobj); kobject_put(&glob->kobj); + ttm_mem_global_release(&ttm_mem_glob); } EXPORT_SYMBOL(ttm_bo_global_release); -int ttm_bo_global_init(struct ttm_bo_global *glob, - struct ttm_mem_global *mem_glob) +int ttm_bo_global_init(struct ttm_bo_global *glob) { int ret; unsigned i; + ret = ttm_mem_global_init(&ttm_mem_glob); + if (ret) + return ret; + mutex_init(&glob->device_list_mutex); spin_lock_init(&glob->lru_lock); - glob->mem_glob = mem_glob; + glob->mem_glob = &ttm_mem_glob; glob->mem_glob->bo_glob = glob; glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32); diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c index 450387c92b63..7704e17c402f 100644 --- a/drivers/gpu/drm/ttm/ttm_memory.c +++ b/drivers/gpu/drm/ttm/ttm_memory.c @@ -41,6 +41,9 @@ #define TTM_MEMORY_ALLOC_RETRIES 4 +struct ttm_mem_global ttm_mem_glob; +EXPORT_SYMBOL(ttm_mem_glob); + struct ttm_mem_zone { struct kobject kobj; struct ttm_mem_global *glob; @@ -464,7 +467,6 @@ out_no_zone: ttm_mem_global_release(glob); return ret; } -EXPORT_SYMBOL(ttm_mem_global_init); void ttm_mem_global_release(struct ttm_mem_global *glob) { @@ -486,7 +488,6 @@ void ttm_mem_global_release(struct ttm_mem_global *glob) kobject_del(&glob->kobj); kobject_put(&glob->kobj); } -EXPORT_SYMBOL(ttm_mem_global_release); static void ttm_check_swapping(struct ttm_mem_global *glob) { diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index d29f0c7c768c..d9756b59e329 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -143,7 +143,6 @@ struct virtio_gpu_fbdev { struct virtio_gpu_mman { struct ttm_bo_global_ref bo_global_ref; - struct drm_global_reference mem_global_ref; bool mem_global_referenced; struct ttm_bo_device bdev; }; diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c index 526a5e48dc3b..8510109e09da 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ttm.c +++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c @@ -50,37 +50,12 @@ virtio_gpu_device *virtio_gpu_get_vgdev(struct ttm_bo_device *bdev) return vgdev; } -static int virtio_gpu_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void virtio_gpu_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - static int virtio_gpu_ttm_global_init(struct virtio_gpu_device *vgdev) { struct drm_global_reference *global_ref; int r; vgdev->mman.mem_global_referenced = false; - global_ref = &vgdev->mman.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &virtio_gpu_ttm_mem_global_init; - global_ref->release = &virtio_gpu_ttm_mem_global_release; - - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM memory accounting " - "subsystem.\n"); - return r; - } - - vgdev->mman.bo_global_ref.mem_glob = - vgdev->mman.mem_global_ref.object; global_ref = &vgdev->mman.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -89,7 +64,6 @@ static int virtio_gpu_ttm_global_init(struct virtio_gpu_device *vgdev) r = drm_global_item_ref(global_ref); if (r != 0) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&vgdev->mman.mem_global_ref); return r; } @@ -101,7 +75,6 @@ static void virtio_gpu_ttm_global_fini(struct virtio_gpu_device *vgdev) { if (vgdev->mman.mem_global_referenced) { drm_global_item_unref(&vgdev->mman.bo_global_ref.ref); - drm_global_item_unref(&vgdev->mman.mem_global_ref); vgdev->mman.mem_global_referenced = false; } } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 61a84b958d67..67494148accd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -828,8 +828,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) goto out_err4; } - dev_priv->tdev = ttm_object_device_init - (dev_priv->mem_global_ref.object, 12, &vmw_prime_dmabuf_ops); + dev_priv->tdev = ttm_object_device_init(&ttm_mem_glob, 12, + &vmw_prime_dmabuf_ops); if (unlikely(dev_priv->tdev == NULL)) { DRM_ERROR("Unable to initialize TTM object management.\n"); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 59f614225bcd..252f202ae897 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -418,7 +418,6 @@ enum { struct vmw_private { struct ttm_bo_device bdev; struct ttm_bo_global_ref bo_global_ref; - struct drm_global_reference mem_global_ref; struct vmw_fifo_state fifo; @@ -1363,7 +1362,7 @@ vmw_bo_reference(struct vmw_buffer_object *buf) static inline struct ttm_mem_global *vmw_mem_glob(struct vmw_private *dev_priv) { - return (struct ttm_mem_global *) dev_priv->mem_global_ref.object; + return &ttm_mem_glob; } static inline void vmw_fifo_resource_inc(struct vmw_private *dev_priv) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c index f3ce43c41978..0ac473cd5136 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c @@ -43,36 +43,11 @@ int vmw_mmap(struct file *filp, struct vm_area_struct *vma) return ttm_bo_mmap(filp, vma, &dev_priv->bdev); } -static int vmw_ttm_mem_global_init(struct drm_global_reference *ref) -{ - DRM_INFO("global init.\n"); - return ttm_mem_global_init(ref->object); -} - -static void vmw_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - int vmw_ttm_global_init(struct vmw_private *dev_priv) { struct drm_global_reference *global_ref; int ret; - global_ref = &dev_priv->mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &vmw_ttm_mem_global_init; - global_ref->release = &vmw_ttm_mem_global_release; - - ret = drm_global_item_ref(global_ref); - if (unlikely(ret != 0)) { - DRM_ERROR("Failed setting up TTM memory accounting.\n"); - return ret; - } - - dev_priv->bo_global_ref.mem_glob = - dev_priv->mem_global_ref.object; global_ref = &dev_priv->bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -87,12 +62,10 @@ int vmw_ttm_global_init(struct vmw_private *dev_priv) return 0; out_no_bo: - drm_global_item_unref(&dev_priv->mem_global_ref); return ret; } void vmw_ttm_global_release(struct vmw_private *dev_priv) { drm_global_item_unref(&dev_priv->bo_global_ref.ref); - drm_global_item_unref(&dev_priv->mem_global_ref); } diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h index 73395a7536c5..dc257a892ecb 100644 --- a/drivers/staging/vboxvideo/vbox_drv.h +++ b/drivers/staging/vboxvideo/vbox_drv.h @@ -99,7 +99,6 @@ struct vbox_private { int fb_mtrr; struct { - struct drm_global_reference mem_global_ref; struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/staging/vboxvideo/vbox_ttm.c b/drivers/staging/vboxvideo/vbox_ttm.c index 344975579ea5..73b895328059 100644 --- a/drivers/staging/vboxvideo/vbox_ttm.c +++ b/drivers/staging/vboxvideo/vbox_ttm.c @@ -35,16 +35,6 @@ static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd) return container_of(bd, struct vbox_private, ttm.bdev); } -static int vbox_ttm_mem_global_init(struct drm_global_reference *ref) -{ - return ttm_mem_global_init(ref->object); -} - -static void vbox_ttm_mem_global_release(struct drm_global_reference *ref) -{ - ttm_mem_global_release(ref->object); -} - /** * Adds the vbox memory manager object/structures to the global memory manager. */ @@ -53,18 +43,6 @@ static int vbox_ttm_global_init(struct vbox_private *vbox) struct drm_global_reference *global_ref; int ret; - global_ref = &vbox->ttm.mem_global_ref; - global_ref->global_type = DRM_GLOBAL_TTM_MEM; - global_ref->size = sizeof(struct ttm_mem_global); - global_ref->init = &vbox_ttm_mem_global_init; - global_ref->release = &vbox_ttm_mem_global_release; - ret = drm_global_item_ref(global_ref); - if (ret) { - DRM_ERROR("Failed setting up TTM memory subsystem.\n"); - return ret; - } - - vbox->ttm.bo_global_ref.mem_glob = vbox->ttm.mem_global_ref.object; global_ref = &vbox->ttm.bo_global_ref.ref; global_ref->global_type = DRM_GLOBAL_TTM_BO; global_ref->size = sizeof(struct ttm_bo_global); @@ -74,7 +52,6 @@ static int vbox_ttm_global_init(struct vbox_private *vbox) ret = drm_global_item_ref(global_ref); if (ret) { DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - drm_global_item_unref(&vbox->ttm.mem_global_ref); return ret; } @@ -87,7 +64,6 @@ static int vbox_ttm_global_init(struct vbox_private *vbox) static void vbox_ttm_global_release(struct vbox_private *vbox) { drm_global_item_unref(&vbox->ttm.bo_global_ref.ref); - drm_global_item_unref(&vbox->ttm.mem_global_ref); } static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo) diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index c6ee07d10281..4ae6fc33f761 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -570,8 +570,7 @@ void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); void ttm_bo_global_release(struct ttm_bo_global *glob); -int ttm_bo_global_init(struct ttm_bo_global *glob, - struct ttm_mem_global *mem_glob); +int ttm_bo_global_init(struct ttm_bo_global *glob); int ttm_bo_device_release(struct ttm_bo_device *bdev); @@ -895,7 +894,6 @@ extern const struct ttm_mem_type_manager_func ttm_bo_manager_func; struct ttm_bo_global_ref { struct drm_global_reference ref; - struct ttm_mem_global *mem_glob; }; /** @@ -909,9 +907,7 @@ struct ttm_bo_global_ref { */ static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref) { - struct ttm_bo_global_ref *bo_ref = - container_of(ref, struct ttm_bo_global_ref, ref); - return ttm_bo_global_init(ref->object, bo_ref->mem_glob); + return ttm_bo_global_init(ref->object); } /** diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h index 737b5fed8003..3ff48a0a2d7b 100644 --- a/include/drm/ttm/ttm_memory.h +++ b/include/drm/ttm/ttm_memory.h @@ -63,7 +63,7 @@ #define TTM_MEM_MAX_ZONES 2 struct ttm_mem_zone; -struct ttm_mem_global { +extern struct ttm_mem_global { struct kobject kobj; struct ttm_bo_global *bo_glob; struct workqueue_struct *swap_queue; @@ -78,7 +78,7 @@ struct ttm_mem_global { #else struct ttm_mem_zone *zone_dma32; #endif -}; +} ttm_mem_glob; extern int ttm_mem_global_init(struct ttm_mem_global *glob); extern void ttm_mem_global_release(struct ttm_mem_global *glob); -- cgit From 56b3d20413587fab6a790cfc8bc075ca94bc8ed9 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 19 Oct 2018 14:09:24 +0200 Subject: drm/ttm: make the device list mutex static MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This way it can protect the whole BO global state. Signed-off-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 14 +++++++++----- include/drm/ttm/ttm_bo_driver.h | 1 - 2 files changed, 9 insertions(+), 6 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 3006050b1720..4ec368b2555a 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -45,6 +45,11 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj); +/** + * ttm_global_mutex - protecting the global BO state + */ +DEFINE_MUTEX(ttm_global_mutex); + static struct attribute ttm_bo_count = { .name = "bo_count", .mode = S_IRUGO @@ -1539,7 +1544,6 @@ int ttm_bo_global_init(struct ttm_bo_global *glob) if (ret) return ret; - mutex_init(&glob->device_list_mutex); spin_lock_init(&glob->lru_lock); glob->mem_glob = &ttm_mem_glob; glob->mem_glob->bo_glob = glob; @@ -1587,9 +1591,9 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev) } } - mutex_lock(&glob->device_list_mutex); + mutex_lock(&ttm_global_mutex); list_del(&bdev->device_list); - mutex_unlock(&glob->device_list_mutex); + mutex_unlock(&ttm_global_mutex); cancel_delayed_work_sync(&bdev->wq); @@ -1636,9 +1640,9 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev, bdev->dev_mapping = mapping; bdev->glob = glob; bdev->need_dma32 = need_dma32; - mutex_lock(&glob->device_list_mutex); + mutex_lock(&ttm_global_mutex); list_add_tail(&bdev->device_list, &glob->device_list); - mutex_unlock(&glob->device_list_mutex); + mutex_unlock(&ttm_global_mutex); return 0; out_no_sys: diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 4ae6fc33f761..9cec8835b88f 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -407,7 +407,6 @@ struct ttm_bo_global { struct kobject kobj; struct ttm_mem_global *mem_glob; struct page *dummy_read_page; - struct mutex device_list_mutex; spinlock_t lru_lock; /** -- cgit From 62b53b37e4b1500d4eb4624a44ad861cf8d3cd18 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 19 Oct 2018 15:06:06 +0200 Subject: drm/ttm: use a static ttm_bo_global instance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As the name says we only need one global instance of ttm_bo_global. Just use a single exported instance which is save to initialize multiple times. Signed-off-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 31 +++++++++++++++++++++++-------- include/drm/ttm/ttm_bo_driver.h | 15 ++++++++------- 2 files changed, 31 insertions(+), 15 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 4ec368b2555a..d89183f95570 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -49,6 +49,9 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj); * ttm_global_mutex - protecting the global BO state */ DEFINE_MUTEX(ttm_global_mutex); +struct ttm_bo_global ttm_bo_glob = { + .use_count = 0 +}; static struct attribute ttm_bo_count = { .name = "bo_count", @@ -1527,22 +1530,35 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj) kfree(glob); } -void ttm_bo_global_release(struct ttm_bo_global *glob) +void ttm_bo_global_release(void) { + struct ttm_bo_global *glob = &ttm_bo_glob; + + mutex_lock(&ttm_global_mutex); + if (--glob->use_count > 0) + goto out; + kobject_del(&glob->kobj); kobject_put(&glob->kobj); ttm_mem_global_release(&ttm_mem_glob); +out: + mutex_unlock(&ttm_global_mutex); } EXPORT_SYMBOL(ttm_bo_global_release); -int ttm_bo_global_init(struct ttm_bo_global *glob) +int ttm_bo_global_init(void) { - int ret; + struct ttm_bo_global *glob = &ttm_bo_glob; + int ret = 0; unsigned i; + mutex_lock(&ttm_global_mutex); + if (++glob->use_count > 1) + goto out; + ret = ttm_mem_global_init(&ttm_mem_glob); if (ret) - return ret; + goto out; spin_lock_init(&glob->lru_lock); glob->mem_glob = &ttm_mem_glob; @@ -1551,7 +1567,7 @@ int ttm_bo_global_init(struct ttm_bo_global *glob) if (unlikely(glob->dummy_read_page == NULL)) { ret = -ENOMEM; - goto out_no_drp; + goto out; } for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) @@ -1563,9 +1579,8 @@ int ttm_bo_global_init(struct ttm_bo_global *glob) &glob->kobj, &ttm_bo_glob_kobj_type, ttm_get_kobj(), "buffer_objects"); if (unlikely(ret != 0)) kobject_put(&glob->kobj); - return ret; -out_no_drp: - kfree(glob); +out: + mutex_unlock(&ttm_global_mutex); return ret; } EXPORT_SYMBOL(ttm_bo_global_init); diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 9cec8835b88f..26be74939f10 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -398,7 +398,7 @@ struct ttm_bo_driver { * @swap_lru: Lru list of buffer objects used for swapping. */ -struct ttm_bo_global { +extern struct ttm_bo_global { /** * Constant after init. @@ -410,8 +410,9 @@ struct ttm_bo_global { spinlock_t lru_lock; /** - * Protected by device_list_mutex. + * Protected by ttm_global_mutex. */ + unsigned int use_count; struct list_head device_list; /** @@ -423,7 +424,7 @@ struct ttm_bo_global { * Internal protection. */ atomic_t bo_count; -}; +} ttm_bo_glob; #define TTM_NUM_MEM_TYPES 8 @@ -568,8 +569,8 @@ void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); -void ttm_bo_global_release(struct ttm_bo_global *glob); -int ttm_bo_global_init(struct ttm_bo_global *glob); +void ttm_bo_global_release(void); +int ttm_bo_global_init(void); int ttm_bo_device_release(struct ttm_bo_device *bdev); @@ -906,7 +907,7 @@ struct ttm_bo_global_ref { */ static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref) { - return ttm_bo_global_init(ref->object); + return ttm_bo_global_init(); } /** @@ -920,7 +921,7 @@ static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref) */ static inline void ttm_bo_global_ref_release(struct drm_global_reference *ref) { - ttm_bo_global_release(ref->object); + ttm_bo_global_release(); } #endif -- cgit From a64f784bb14a56bfdfad2dc397dd67e4564e3a29 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 19 Oct 2018 16:55:26 +0200 Subject: drm/ttm: initialize globals during device init (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make sure that the global BO state is always correctly initialized. This allows removing all the device code to initialize it. v2: fix up vbox (Alex) Signed-off-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 59 +------------------------ drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 1 - drivers/gpu/drm/ast/ast_drv.h | 1 - drivers/gpu/drm/ast/ast_ttm.c | 36 --------------- drivers/gpu/drm/bochs/bochs.h | 1 - drivers/gpu/drm/bochs/bochs_mm.c | 35 --------------- drivers/gpu/drm/cirrus/cirrus_drv.h | 1 - drivers/gpu/drm/cirrus/cirrus_ttm.c | 36 --------------- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 1 - drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 34 -------------- drivers/gpu/drm/mgag200/mgag200_drv.h | 1 - drivers/gpu/drm/mgag200/mgag200_ttm.c | 36 --------------- drivers/gpu/drm/nouveau/nouveau_drv.h | 1 - drivers/gpu/drm/nouveau/nouveau_ttm.c | 39 ---------------- drivers/gpu/drm/qxl/qxl_drv.h | 2 - drivers/gpu/drm/qxl/qxl_ttm.c | 33 -------------- drivers/gpu/drm/radeon/radeon.h | 2 - drivers/gpu/drm/radeon/radeon_ttm.c | 39 ---------------- drivers/gpu/drm/ttm/ttm_bo.c | 19 +++++--- drivers/gpu/drm/virtio/virtgpu_drv.h | 2 - drivers/gpu/drm/virtio/virtgpu_ttm.c | 35 --------------- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 11 +---- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 3 -- drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c | 27 ----------- drivers/staging/vboxvideo/vbox_drv.h | 1 - drivers/staging/vboxvideo/vbox_ttm.c | 41 +---------------- include/drm/ttm/ttm_bo_driver.h | 41 +---------------- 27 files changed, 17 insertions(+), 521 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index fda252022b15..31fe85dd0b50 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -61,56 +61,6 @@ static int amdgpu_map_buffer(struct ttm_buffer_object *bo, static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev); static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev); -/* - * Global memory. - */ - -/** - * amdgpu_ttm_global_init - Initialize global TTM memory reference structures. - * - * @adev: AMDGPU device for which the global structures need to be registered. - * - * This is called as part of the AMDGPU ttm init from amdgpu_ttm_init() - * during bring up. - */ -static int amdgpu_ttm_global_init(struct amdgpu_device *adev) -{ - struct drm_global_reference *global_ref; - int r; - - /* ensure reference is false in case init fails */ - adev->mman.mem_global_referenced = false; - - global_ref = &adev->mman.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - goto error_bo; - } - - mutex_init(&adev->mman.gtt_window_lock); - - adev->mman.mem_global_referenced = true; - - return 0; - -error_bo: - return r; -} - -static void amdgpu_ttm_global_fini(struct amdgpu_device *adev) -{ - if (adev->mman.mem_global_referenced) { - mutex_destroy(&adev->mman.gtt_window_lock); - drm_global_item_unref(&adev->mman.bo_global_ref.ref); - adev->mman.mem_global_referenced = false; - } -} - static int amdgpu_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) { return 0; @@ -1714,14 +1664,10 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) int r; u64 vis_vram_limit; - /* initialize global references for vram/gtt */ - r = amdgpu_ttm_global_init(adev); - if (r) { - return r; - } + mutex_init(&adev->mman.gtt_window_lock); + /* No others user of address space so set it to 0 */ r = ttm_bo_device_init(&adev->mman.bdev, - adev->mman.bo_global_ref.ref.object, &amdgpu_bo_driver, adev->ddev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -1878,7 +1824,6 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev) ttm_bo_clean_mm(&adev->mman.bdev, AMDGPU_PL_GWS); ttm_bo_clean_mm(&adev->mman.bdev, AMDGPU_PL_OA); ttm_bo_device_release(&adev->mman.bdev); - amdgpu_ttm_global_fini(adev); adev->mman.initialized = false; DRM_INFO("amdgpu: ttm finalized\n"); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index e114f209b701..b5b2d101f7db 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -39,7 +39,6 @@ #define AMDGPU_GTT_NUM_TRANSFER_WINDOWS 2 struct amdgpu_mman { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; bool mem_global_referenced; bool initialized; diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 6ae11a477643..bfc65040dfcb 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -104,7 +104,6 @@ struct ast_private { int fb_mtrr; struct { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index 8a59d6fc1160..c168d62fe8f9 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -36,35 +36,6 @@ ast_bdev(struct ttm_bo_device *bd) return container_of(bd, struct ast_private, ttm.bdev); } -static int ast_ttm_global_init(struct ast_private *ast) -{ - struct drm_global_reference *global_ref; - int r; - - global_ref = &ast->ttm.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - return 0; -} - -static void -ast_ttm_global_release(struct ast_private *ast) -{ - if (ast->ttm.bo_global_ref.ref.release == NULL) - return; - - drm_global_item_unref(&ast->ttm.bo_global_ref.ref); - ast->ttm.bo_global_ref.ref.release = NULL; -} - - static void ast_bo_ttm_destroy(struct ttm_buffer_object *tbo) { struct ast_bo *bo; @@ -204,12 +175,7 @@ int ast_mm_init(struct ast_private *ast) struct drm_device *dev = ast->dev; struct ttm_bo_device *bdev = &ast->ttm.bdev; - ret = ast_ttm_global_init(ast); - if (ret) - return ret; - ret = ttm_bo_device_init(&ast->ttm.bdev, - ast->ttm.bo_global_ref.ref.object, &ast_bo_driver, dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -240,8 +206,6 @@ void ast_mm_fini(struct ast_private *ast) ttm_bo_device_release(&ast->ttm.bdev); - ast_ttm_global_release(ast); - arch_phys_wc_del(ast->fb_mtrr); arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h index a035257d1b56..75e4cf6cda5d 100644 --- a/drivers/gpu/drm/bochs/bochs.h +++ b/drivers/gpu/drm/bochs/bochs.h @@ -76,7 +76,6 @@ struct bochs_device { /* ttm */ struct { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; bool initialized; } ttm; diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index c697d456656f..3bd773ef78dd 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -16,35 +16,6 @@ static inline struct bochs_device *bochs_bdev(struct ttm_bo_device *bd) return container_of(bd, struct bochs_device, ttm.bdev); } -static int bochs_ttm_global_init(struct bochs_device *bochs) -{ - struct drm_global_reference *global_ref; - int r; - - global_ref = &bochs->ttm.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - - return 0; -} - -static void bochs_ttm_global_release(struct bochs_device *bochs) -{ - if (bochs->ttm.bo_global_ref.ref.release == NULL) - return; - - drm_global_item_unref(&bochs->ttm.bo_global_ref.ref); - bochs->ttm.bo_global_ref.ref.release = NULL; -} - - static void bochs_bo_ttm_destroy(struct ttm_buffer_object *tbo) { struct bochs_bo *bo; @@ -182,12 +153,7 @@ int bochs_mm_init(struct bochs_device *bochs) struct ttm_bo_device *bdev = &bochs->ttm.bdev; int ret; - ret = bochs_ttm_global_init(bochs); - if (ret) - return ret; - ret = ttm_bo_device_init(&bochs->ttm.bdev, - bochs->ttm.bo_global_ref.ref.object, &bochs_bo_driver, bochs->dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -214,7 +180,6 @@ void bochs_mm_fini(struct bochs_device *bochs) return; ttm_bo_device_release(&bochs->ttm.bdev); - bochs_ttm_global_release(bochs); bochs->ttm.initialized = false; } diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h index 01852fbda9da..f2b2e0d169fa 100644 --- a/drivers/gpu/drm/cirrus/cirrus_drv.h +++ b/drivers/gpu/drm/cirrus/cirrus_drv.h @@ -136,7 +136,6 @@ struct cirrus_device { int fb_mtrr; struct { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; bool mm_inited; diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index 7801c56c3c9b..e075810b4bd4 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -36,35 +36,6 @@ cirrus_bdev(struct ttm_bo_device *bd) return container_of(bd, struct cirrus_device, ttm.bdev); } -static int cirrus_ttm_global_init(struct cirrus_device *cirrus) -{ - struct drm_global_reference *global_ref; - int r; - - global_ref = &cirrus->ttm.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - return 0; -} - -static void -cirrus_ttm_global_release(struct cirrus_device *cirrus) -{ - if (cirrus->ttm.bo_global_ref.ref.release == NULL) - return; - - drm_global_item_unref(&cirrus->ttm.bo_global_ref.ref); - cirrus->ttm.bo_global_ref.ref.release = NULL; -} - - static void cirrus_bo_ttm_destroy(struct ttm_buffer_object *tbo) { struct cirrus_bo *bo; @@ -204,12 +175,7 @@ int cirrus_mm_init(struct cirrus_device *cirrus) struct drm_device *dev = cirrus->dev; struct ttm_bo_device *bdev = &cirrus->ttm.bdev; - ret = cirrus_ttm_global_init(cirrus); - if (ret) - return ret; - ret = ttm_bo_device_init(&cirrus->ttm.bdev, - cirrus->ttm.bo_global_ref.ref.object, &cirrus_bo_driver, dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -245,8 +211,6 @@ void cirrus_mm_fini(struct cirrus_device *cirrus) ttm_bo_device_release(&cirrus->ttm.bdev); - cirrus_ttm_global_release(cirrus); - arch_phys_wc_del(cirrus->fb_mtrr); cirrus->fb_mtrr = 0; arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h index 60479502e277..3c168ae77b0c 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h @@ -49,7 +49,6 @@ struct hibmc_drm_private { bool mode_config_initialized; /* ttm */ - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; bool initialized; diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c index 14071c849121..dd383267884c 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c @@ -29,32 +29,6 @@ hibmc_bdev(struct ttm_bo_device *bd) return container_of(bd, struct hibmc_drm_private, bdev); } -static int hibmc_ttm_global_init(struct hibmc_drm_private *hibmc) -{ - int ret; - - hibmc->bo_global_ref.ref.global_type = DRM_GLOBAL_TTM_BO; - hibmc->bo_global_ref.ref.size = sizeof(struct ttm_bo_global); - hibmc->bo_global_ref.ref.init = &ttm_bo_global_ref_init; - hibmc->bo_global_ref.ref.release = &ttm_bo_global_ref_release; - ret = drm_global_item_ref(&hibmc->bo_global_ref.ref); - if (ret) { - DRM_ERROR("failed setting up TTM BO subsystem: %d\n", ret); - return ret; - } - return 0; -} - -static void -hibmc_ttm_global_release(struct hibmc_drm_private *hibmc) -{ - if (hibmc->bo_global_ref.ref.release == NULL) - return; - - drm_global_item_unref(&hibmc->bo_global_ref.ref); - hibmc->bo_global_ref.ref.release = NULL; -} - static void hibmc_bo_ttm_destroy(struct ttm_buffer_object *tbo) { struct hibmc_bo *bo = container_of(tbo, struct hibmc_bo, bo); @@ -214,18 +188,12 @@ int hibmc_mm_init(struct hibmc_drm_private *hibmc) struct drm_device *dev = hibmc->dev; struct ttm_bo_device *bdev = &hibmc->bdev; - ret = hibmc_ttm_global_init(hibmc); - if (ret) - return ret; - ret = ttm_bo_device_init(&hibmc->bdev, - hibmc->bo_global_ref.ref.object, &hibmc_bo_driver, dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, true); if (ret) { - hibmc_ttm_global_release(hibmc); DRM_ERROR("error initializing bo driver: %d\n", ret); return ret; } @@ -233,7 +201,6 @@ int hibmc_mm_init(struct hibmc_drm_private *hibmc) ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, hibmc->fb_size >> PAGE_SHIFT); if (ret) { - hibmc_ttm_global_release(hibmc); DRM_ERROR("failed ttm VRAM init: %d\n", ret); return ret; } @@ -248,7 +215,6 @@ void hibmc_mm_fini(struct hibmc_drm_private *hibmc) return; ttm_bo_device_release(&hibmc->bdev); - hibmc_ttm_global_release(hibmc); hibmc->mm_inited = false; } diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index e5348955a3cc..0aaedc554879 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -212,7 +212,6 @@ struct mga_device { int fb_mtrr; struct { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 11bdc8121a7d..d96a9b32455e 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -36,35 +36,6 @@ mgag200_bdev(struct ttm_bo_device *bd) return container_of(bd, struct mga_device, ttm.bdev); } -static int mgag200_ttm_global_init(struct mga_device *ast) -{ - struct drm_global_reference *global_ref; - int r; - - global_ref = &ast->ttm.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - return 0; -} - -static void -mgag200_ttm_global_release(struct mga_device *ast) -{ - if (ast->ttm.bo_global_ref.ref.release == NULL) - return; - - drm_global_item_unref(&ast->ttm.bo_global_ref.ref); - ast->ttm.bo_global_ref.ref.release = NULL; -} - - static void mgag200_bo_ttm_destroy(struct ttm_buffer_object *tbo) { struct mgag200_bo *bo; @@ -204,12 +175,7 @@ int mgag200_mm_init(struct mga_device *mdev) struct drm_device *dev = mdev->dev; struct ttm_bo_device *bdev = &mdev->ttm.bdev; - ret = mgag200_ttm_global_init(mdev); - if (ret) - return ret; - ret = ttm_bo_device_init(&mdev->ttm.bdev, - mdev->ttm.bo_global_ref.ref.object, &mgag200_bo_driver, dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -240,8 +206,6 @@ void mgag200_mm_fini(struct mga_device *mdev) ttm_bo_device_release(&mdev->ttm.bdev); - mgag200_ttm_global_release(mdev); - arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); arch_phys_wc_del(mdev->fb_mtrr); diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 0f3bb1a11fc9..d20b9ba4b1c1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -146,7 +146,6 @@ struct nouveau_drm { /* TTM interface support */ struct { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; atomic_t validate_sequence; int (*move)(struct nouveau_channel *, diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 69448b02649e..1543c2f8d3d3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -174,38 +174,6 @@ nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); } -int -nouveau_ttm_global_init(struct nouveau_drm *drm) -{ - struct drm_global_reference *global_ref; - int ret; - - global_ref = &drm->ttm.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - - ret = drm_global_item_ref(global_ref); - if (unlikely(ret != 0)) { - DRM_ERROR("Failed setting up TTM BO subsystem\n"); - drm->ttm.bo_global_ref.ref.release = NULL; - return ret; - } - - return 0; -} - -void -nouveau_ttm_global_release(struct nouveau_drm *drm) -{ - if (drm->ttm.bo_global_ref.ref.release == NULL) - return; - - drm_global_item_unref(&drm->ttm.bo_global_ref.ref); - drm->ttm.bo_global_ref.ref.release = NULL; -} - static int nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind) { @@ -268,12 +236,7 @@ nouveau_ttm_init(struct nouveau_drm *drm) drm->agp.cma = pci->agp.cma; } - ret = nouveau_ttm_global_init(drm); - if (ret) - return ret; - ret = ttm_bo_device_init(&drm->ttm.bdev, - drm->ttm.bo_global_ref.ref.object, &nouveau_bo_driver, dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -328,8 +291,6 @@ nouveau_ttm_fini(struct nouveau_drm *drm) ttm_bo_device_release(&drm->ttm.bdev); - nouveau_ttm_global_release(drm); - arch_phys_wc_del(drm->ttm.mtrr); drm->ttm.mtrr = 0; arch_io_free_memtype_wc(device->func->resource_addr(device, 1), diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h index 52912e54e990..2310d6e9ff1f 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.h +++ b/drivers/gpu/drm/qxl/qxl_drv.h @@ -127,8 +127,6 @@ struct qxl_output { #define drm_encoder_to_qxl_output(x) container_of(x, struct qxl_output, enc) struct qxl_mman { - struct ttm_bo_global_ref bo_global_ref; - bool mem_global_referenced; struct ttm_bo_device bdev; }; diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index bb8cc9b16780..1468fddc19d0 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -46,34 +46,6 @@ static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev) return qdev; } -static int qxl_ttm_global_init(struct qxl_device *qdev) -{ - struct drm_global_reference *global_ref; - int r; - - global_ref = &qdev->mman.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - - qdev->mman.mem_global_referenced = true; - return 0; -} - -static void qxl_ttm_global_fini(struct qxl_device *qdev) -{ - if (qdev->mman.mem_global_referenced) { - drm_global_item_unref(&qdev->mman.bo_global_ref.ref); - qdev->mman.mem_global_referenced = false; - } -} - static struct vm_operations_struct qxl_ttm_vm_ops; static const struct vm_operations_struct *ttm_vm_ops; @@ -345,12 +317,8 @@ int qxl_ttm_init(struct qxl_device *qdev) int r; int num_io_pages; /* != rom->num_io_pages, we include surface0 */ - r = qxl_ttm_global_init(qdev); - if (r) - return r; /* No others user of address space so set it to 0 */ r = ttm_bo_device_init(&qdev->mman.bdev, - qdev->mman.bo_global_ref.ref.object, &qxl_bo_driver, qdev->ddev.anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, 0); @@ -386,7 +354,6 @@ void qxl_ttm_fini(struct qxl_device *qdev) ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_VRAM); ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_PRIV); ttm_bo_device_release(&qdev->mman.bdev); - qxl_ttm_global_fini(qdev); DRM_INFO("qxl: ttm finalized\n"); } diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 06fb952b6290..32808e50be12 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -448,9 +448,7 @@ struct radeon_surface_reg { * TTM. */ struct radeon_mman { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; - bool mem_global_referenced; bool initialized; #if defined(CONFIG_DEBUG_FS) diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 2104429ddbac..9920a6fc11bf 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -60,39 +60,6 @@ static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev) return rdev; } - -/* - * Global memory. - */ -static int radeon_ttm_global_init(struct radeon_device *rdev) -{ - struct drm_global_reference *global_ref; - int r; - - rdev->mman.mem_global_referenced = false; - global_ref = &rdev->mman.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - - rdev->mman.mem_global_referenced = true; - return 0; -} - -static void radeon_ttm_global_fini(struct radeon_device *rdev) -{ - if (rdev->mman.mem_global_referenced) { - drm_global_item_unref(&rdev->mman.bo_global_ref.ref); - rdev->mman.mem_global_referenced = false; - } -} - static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) { return 0; @@ -821,13 +788,8 @@ int radeon_ttm_init(struct radeon_device *rdev) { int r; - r = radeon_ttm_global_init(rdev); - if (r) { - return r; - } /* No others user of address space so set it to 0 */ r = ttm_bo_device_init(&rdev->mman.bdev, - rdev->mman.bo_global_ref.ref.object, &radeon_bo_driver, rdev->ddev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, @@ -899,7 +861,6 @@ void radeon_ttm_fini(struct radeon_device *rdev) ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT); ttm_bo_device_release(&rdev->mman.bdev); radeon_gart_fini(rdev); - radeon_ttm_global_fini(rdev); rdev->mman.initialized = false; DRM_INFO("radeon: ttm finalized\n"); } diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index d89183f95570..df028805b7e2 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1530,7 +1530,7 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj) kfree(glob); } -void ttm_bo_global_release(void) +static void ttm_bo_global_release(void) { struct ttm_bo_global *glob = &ttm_bo_glob; @@ -1544,9 +1544,8 @@ void ttm_bo_global_release(void) out: mutex_unlock(&ttm_global_mutex); } -EXPORT_SYMBOL(ttm_bo_global_release); -int ttm_bo_global_init(void) +static int ttm_bo_global_init(void) { struct ttm_bo_global *glob = &ttm_bo_glob; int ret = 0; @@ -1583,8 +1582,6 @@ out: mutex_unlock(&ttm_global_mutex); return ret; } -EXPORT_SYMBOL(ttm_bo_global_init); - int ttm_bo_device_release(struct ttm_bo_device *bdev) { @@ -1623,18 +1620,25 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev) drm_vma_offset_manager_destroy(&bdev->vma_manager); + if (!ret) + ttm_bo_global_release(); + return ret; } EXPORT_SYMBOL(ttm_bo_device_release); int ttm_bo_device_init(struct ttm_bo_device *bdev, - struct ttm_bo_global *glob, struct ttm_bo_driver *driver, struct address_space *mapping, uint64_t file_page_offset, bool need_dma32) { - int ret = -EINVAL; + struct ttm_bo_global *glob = &ttm_bo_glob; + int ret; + + ret = ttm_bo_global_init(); + if (ret) + return ret; bdev->driver = driver; @@ -1661,6 +1665,7 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev, return 0; out_no_sys: + ttm_bo_global_release(); return ret; } EXPORT_SYMBOL(ttm_bo_device_init); diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index d9756b59e329..1acbf182536f 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -142,8 +142,6 @@ struct virtio_gpu_fbdev { }; struct virtio_gpu_mman { - struct ttm_bo_global_ref bo_global_ref; - bool mem_global_referenced; struct ttm_bo_device bdev; }; diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c index 8510109e09da..8fc088d5ef0d 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ttm.c +++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c @@ -50,35 +50,6 @@ virtio_gpu_device *virtio_gpu_get_vgdev(struct ttm_bo_device *bdev) return vgdev; } -static int virtio_gpu_ttm_global_init(struct virtio_gpu_device *vgdev) -{ - struct drm_global_reference *global_ref; - int r; - - vgdev->mman.mem_global_referenced = false; - global_ref = &vgdev->mman.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - r = drm_global_item_ref(global_ref); - if (r != 0) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return r; - } - - vgdev->mman.mem_global_referenced = true; - return 0; -} - -static void virtio_gpu_ttm_global_fini(struct virtio_gpu_device *vgdev) -{ - if (vgdev->mman.mem_global_referenced) { - drm_global_item_unref(&vgdev->mman.bo_global_ref.ref); - vgdev->mman.mem_global_referenced = false; - } -} - int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma) { struct drm_file *file_priv; @@ -356,12 +327,8 @@ int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev) { int r; - r = virtio_gpu_ttm_global_init(vgdev); - if (r) - return r; /* No others user of address space so set it to 0 */ r = ttm_bo_device_init(&vgdev->mman.bdev, - vgdev->mman.bo_global_ref.ref.object, &virtio_gpu_bo_driver, vgdev->ddev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, 0); @@ -380,13 +347,11 @@ int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev) err_mm_init: ttm_bo_device_release(&vgdev->mman.bdev); err_dev_init: - virtio_gpu_ttm_global_fini(vgdev); return r; } void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev) { ttm_bo_device_release(&vgdev->mman.bdev); - virtio_gpu_ttm_global_fini(vgdev); DRM_INFO("virtio_gpu: ttm finalized\n"); } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 67494148accd..b9c078860a7c 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -801,11 +801,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) DRM_INFO("MMIO at 0x%08x size is %u kiB\n", dev_priv->mmio_start, dev_priv->mmio_size / 1024); - ret = vmw_ttm_global_init(dev_priv); - if (unlikely(ret != 0)) - goto out_err0; - - vmw_master_init(&dev_priv->fbdev_master); ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); dev_priv->active_master = &dev_priv->fbdev_master; @@ -816,7 +811,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) if (unlikely(dev_priv->mmio_virt == NULL)) { ret = -ENOMEM; DRM_ERROR("Failed mapping MMIO.\n"); - goto out_err3; + goto out_err0; } /* Need mmio memory to check for fifo pitchlock cap. */ @@ -870,7 +865,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) } ret = ttm_bo_device_init(&dev_priv->bdev, - dev_priv->bo_global_ref.ref.object, &vmw_bo_driver, dev->anon_inode->i_mapping, VMWGFX_FILE_PAGE_OFFSET, @@ -992,8 +986,6 @@ out_no_device: ttm_object_device_release(&dev_priv->tdev); out_err4: memunmap(dev_priv->mmio_virt); -out_err3: - vmw_ttm_global_release(dev_priv); out_err0: for (i = vmw_res_context; i < vmw_res_max; ++i) idr_destroy(&dev_priv->res_idr[i]); @@ -1045,7 +1037,6 @@ static void vmw_driver_unload(struct drm_device *dev) memunmap(dev_priv->mmio_virt); if (dev_priv->ctx.staged_bindings) vmw_binding_state_free(dev_priv->ctx.staged_bindings); - vmw_ttm_global_release(dev_priv); for (i = vmw_res_context; i < vmw_res_max; ++i) idr_destroy(&dev_priv->res_idr[i]); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 252f202ae897..28df788da44e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -417,7 +417,6 @@ enum { struct vmw_private { struct ttm_bo_device bdev; - struct ttm_bo_global_ref bo_global_ref; struct vmw_fifo_state fifo; @@ -841,8 +840,6 @@ extern int vmw_fifo_flush(struct vmw_private *dev_priv, * TTM glue - vmwgfx_ttm_glue.c */ -extern int vmw_ttm_global_init(struct vmw_private *dev_priv); -extern void vmw_ttm_global_release(struct vmw_private *dev_priv); extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma); /** diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c index 0ac473cd5136..154eb09aa91e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c @@ -42,30 +42,3 @@ int vmw_mmap(struct file *filp, struct vm_area_struct *vma) dev_priv = vmw_priv(file_priv->minor->dev); return ttm_bo_mmap(filp, vma, &dev_priv->bdev); } - -int vmw_ttm_global_init(struct vmw_private *dev_priv) -{ - struct drm_global_reference *global_ref; - int ret; - - global_ref = &dev_priv->bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - ret = drm_global_item_ref(global_ref); - - if (unlikely(ret != 0)) { - DRM_ERROR("Failed setting up TTM buffer objects.\n"); - goto out_no_bo; - } - - return 0; -out_no_bo: - return ret; -} - -void vmw_ttm_global_release(struct vmw_private *dev_priv) -{ - drm_global_item_unref(&dev_priv->bo_global_ref.ref); -} diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h index dc257a892ecb..fa933d422951 100644 --- a/drivers/staging/vboxvideo/vbox_drv.h +++ b/drivers/staging/vboxvideo/vbox_drv.h @@ -99,7 +99,6 @@ struct vbox_private { int fb_mtrr; struct { - struct ttm_bo_global_ref bo_global_ref; struct ttm_bo_device bdev; } ttm; diff --git a/drivers/staging/vboxvideo/vbox_ttm.c b/drivers/staging/vboxvideo/vbox_ttm.c index 73b895328059..b36ec019c332 100644 --- a/drivers/staging/vboxvideo/vbox_ttm.c +++ b/drivers/staging/vboxvideo/vbox_ttm.c @@ -35,37 +35,6 @@ static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd) return container_of(bd, struct vbox_private, ttm.bdev); } -/** - * Adds the vbox memory manager object/structures to the global memory manager. - */ -static int vbox_ttm_global_init(struct vbox_private *vbox) -{ - struct drm_global_reference *global_ref; - int ret; - - global_ref = &vbox->ttm.bo_global_ref.ref; - global_ref->global_type = DRM_GLOBAL_TTM_BO; - global_ref->size = sizeof(struct ttm_bo_global); - global_ref->init = &ttm_bo_global_ref_init; - global_ref->release = &ttm_bo_global_ref_release; - - ret = drm_global_item_ref(global_ref); - if (ret) { - DRM_ERROR("Failed setting up TTM BO subsystem.\n"); - return ret; - } - - return 0; -} - -/** - * Removes the vbox memory manager object from the global memory manager. - */ -static void vbox_ttm_global_release(struct vbox_private *vbox) -{ - drm_global_item_unref(&vbox->ttm.bo_global_ref.ref); -} - static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo) { struct vbox_bo *bo; @@ -203,18 +172,13 @@ int vbox_mm_init(struct vbox_private *vbox) struct drm_device *dev = &vbox->ddev; struct ttm_bo_device *bdev = &vbox->ttm.bdev; - ret = vbox_ttm_global_init(vbox); - if (ret) - return ret; - ret = ttm_bo_device_init(&vbox->ttm.bdev, - vbox->ttm.bo_global_ref.ref.object, &vbox_bo_driver, dev->anon_inode->i_mapping, DRM_FILE_PAGE_OFFSET, true); if (ret) { DRM_ERROR("Error initialising bo driver; %d\n", ret); - goto err_ttm_global_release; + return ret; } ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, @@ -236,8 +200,6 @@ int vbox_mm_init(struct vbox_private *vbox) err_device_release: ttm_bo_device_release(&vbox->ttm.bdev); -err_ttm_global_release: - vbox_ttm_global_release(vbox); return ret; } @@ -251,7 +213,6 @@ void vbox_mm_fini(struct vbox_private *vbox) arch_phys_wc_del(vbox->fb_mtrr); #endif ttm_bo_device_release(&vbox->ttm.bdev); - vbox_ttm_global_release(vbox); } void vbox_ttm_placement(struct vbox_bo *bo, int domain) diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 26be74939f10..6fb589f64633 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -569,9 +569,6 @@ void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem); -void ttm_bo_global_release(void); -int ttm_bo_global_init(void); - int ttm_bo_device_release(struct ttm_bo_device *bdev); /** @@ -589,7 +586,7 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev); * Returns: * !0: Failure. */ -int ttm_bo_device_init(struct ttm_bo_device *bdev, struct ttm_bo_global *glob, +int ttm_bo_device_init(struct ttm_bo_device *bdev, struct ttm_bo_driver *driver, struct address_space *mapping, uint64_t file_page_offset, bool need_dma32); @@ -888,40 +885,4 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp); extern const struct ttm_mem_type_manager_func ttm_bo_manager_func; -/** - * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global. - */ - -struct ttm_bo_global_ref { - struct drm_global_reference ref; -}; - -/** - * ttm_bo_global_ref_init - * - * @ref: DRM global reference - * - * Helper function that initializes a struct ttm_bo_global. This function - * is used as init call-back function for DRM global references of type - * DRM_GLOBAL_TTM_BO_REF. - */ -static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref) -{ - return ttm_bo_global_init(); -} - -/** - * ttm_bo_global_ref_release - * - * @ref: DRM global reference - * - * Helper function that releases a struct ttm_bo_global. This function - * is used as release call-back function for DRM global references of type - * DRM_GLOBAL_TTM_BO_REF. - */ -static inline void ttm_bo_global_ref_release(struct drm_global_reference *ref) -{ - ttm_bo_global_release(); -} - #endif -- cgit From 30f33126feca0fe16df9e9302ffc28a953e2eb37 Mon Sep 17 00:00:00 2001 From: Trigger Huang Date: Tue, 6 Nov 2018 19:37:58 +0800 Subject: drm/ttm: Fix bo_global and mem_global kfree error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ttm_bo_glob and ttm_mem_glob are defined as structure instance, while not allocated by kzalloc, so kfree should not be invoked to release them anymore. Otherwise, it will cause the following kernel BUG when unloading amdgpu module [ 48.419294] kernel BUG at /build/linux-5s7Xkn/linux-4.15.0/mm/slub.c:3894! [ 48.419352] invalid opcode: 0000 [#1] SMP PTI [ 48.419387] Modules linked in: amdgpu(OE-) amdchash(OE) amdttm(OE) amd_sched(OE) amdkcl(OE) amd_iommu_v2 drm_kms_helper drm i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi pcbc snd_seq snd_seq_device snd_timer aesni_intel snd soundcore joydev aes_x86_64 crypto_simd glue_helper cryptd input_leds mac_hid serio_raw binfmt_misc nfsd auth_rpcgss nfs_acl lockd grace sunrpc sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 8139too psmouse i2c_piix4 8139cp mii floppy pata_acpi [ 48.419782] CPU: 1 PID: 1281 Comm: modprobe Tainted: G OE 4.15.0-20-generic #21-Ubuntu [ 48.419838] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 [ 48.419901] RIP: 0010:kfree+0x137/0x180 [ 48.419934] RSP: 0018:ffffb02101273bf8 EFLAGS: 00010246 [ 48.419974] RAX: ffffeee1418ad7e0 RBX: ffffffffc075f100 RCX: ffff8fed7fca7ed0 [ 48.420025] RDX: 0000000000000000 RSI: 000000000003440e RDI: 0000000022400000 [ 48.420073] RBP: ffffb02101273c10 R08: 0000000000000010 R09: ffff8fed7ffd3680 [ 48.420121] R10: ffffeee1418ad7c0 R11: ffff8fed7ffd3000 R12: ffffffffc075e2c0 [ 48.420169] R13: ffffffffc074ec10 R14: ffff8fed73063900 R15: ffff8fed737428e8 [ 48.420216] FS: 00007fdc912ec540(0000) GS:ffff8fed7fc80000(0000) knlGS:0000000000000000 [ 48.420267] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.420308] CR2: 000055fa40c30060 CR3: 000000023470a006 CR4: 00000000003606e0 [ 48.420358] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.420405] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.420452] Call Trace: [ 48.420485] ttm_bo_global_kobj_release+0x20/0x30 [amdttm] [ 48.420528] kobject_release+0x6a/0x180 [ 48.420562] kobject_put+0x28/0x50 [ 48.420595] ttm_bo_global_release+0x36/0x50 [amdttm] [ 48.420636] amdttm_bo_device_release+0x119/0x180 [amdttm] [ 48.420678] ? amdttm_bo_clean_mm+0xa6/0xf0 [amdttm] [ 48.420760] amdgpu_ttm_fini+0xc9/0x180 [amdgpu] [ 48.420821] amdgpu_bo_fini+0x12/0x40 [amdgpu] [ 48.420889] gmc_v9_0_sw_fini+0x40/0x50 [amdgpu] [ 48.420947] amdgpu_device_fini+0x36f/0x4c0 [amdgpu] [ 48.421007] amdgpu_driver_unload_kms+0xb4/0x150 [amdgpu] [ 48.421058] drm_dev_unregister+0x46/0xf0 [drm] [ 48.421102] drm_dev_unplug+0x12/0x70 [drm] Signed-off-by: Trigger Huang Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/ttm/ttm_bo.c | 1 - drivers/gpu/drm/ttm/ttm_memory.c | 9 --------- 2 files changed, 10 deletions(-) (limited to 'drivers/gpu/drm/ttm/ttm_bo.c') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index df028805b7e2..01c6d14a005d 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1527,7 +1527,6 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj) container_of(kobj, struct ttm_bo_global, kobj); __free_page(glob->dummy_read_page); - kfree(glob); } static void ttm_bo_global_release(void) diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c index 7704e17c402f..f1567c353b54 100644 --- a/drivers/gpu/drm/ttm/ttm_memory.c +++ b/drivers/gpu/drm/ttm/ttm_memory.c @@ -219,14 +219,6 @@ static ssize_t ttm_mem_global_store(struct kobject *kobj, return size; } -static void ttm_mem_global_kobj_release(struct kobject *kobj) -{ - struct ttm_mem_global *glob = - container_of(kobj, struct ttm_mem_global, kobj); - - kfree(glob); -} - static struct attribute *ttm_mem_global_attrs[] = { &ttm_mem_global_lower_mem_limit, NULL @@ -238,7 +230,6 @@ static const struct sysfs_ops ttm_mem_global_ops = { }; static struct kobj_type ttm_mem_glob_kobj_type = { - .release = &ttm_mem_global_kobj_release, .sysfs_ops = &ttm_mem_global_ops, .default_attrs = ttm_mem_global_attrs, }; -- cgit