From f9820a46dd7888b05a36e81166fb1abcc47dcc3f Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 29 Nov 2010 13:52:18 -0500 Subject: ttm: Introduce a placeholder for DMA (bus) addresses. This is right now limited to only non-pool constructs. [v2: Fixed indentation issues, add review-by tag] Reviewed-by: Thomas Hellstrom Signed-off-by: Konrad Rzeszutek Wilk Tested-by: Ian Campbell --- include/drm/ttm/ttm_bo_driver.h | 2 ++ include/drm/ttm/ttm_page_alloc.h | 8 ++++++-- 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'include/drm/ttm') diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 8e0c848326b..6dc4fccda73 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -149,6 +149,7 @@ enum ttm_caching_state { * @swap_storage: Pointer to shmem struct file for swap storage. * @caching_state: The current caching state of the pages. * @state: The current binding state of the pages. + * @dma_address: The DMA (bus) addresses of the pages (if TTM_PAGE_FLAG_DMA32) * * This is a structure holding the pages, caching- and aperture binding * status for a buffer object that isn't backed by fixed (VRAM / AGP) @@ -173,6 +174,7 @@ struct ttm_tt { tt_unbound, tt_unpopulated, } state; + dma_addr_t *dma_address; }; #define TTM_MEMTYPE_FLAG_FIXED (1 << 0) /* Fixed (on-card) PCI memory */ diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h index 116821448c3..8062890f725 100644 --- a/include/drm/ttm/ttm_page_alloc.h +++ b/include/drm/ttm/ttm_page_alloc.h @@ -36,11 +36,13 @@ * @flags: ttm flags for page allocation. * @cstate: ttm caching state for the page. * @count: number of pages to allocate. + * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set). */ int ttm_get_pages(struct list_head *pages, int flags, enum ttm_caching_state cstate, - unsigned count); + unsigned count, + dma_addr_t *dma_address); /** * Put linked list of pages to pool. * @@ -49,11 +51,13 @@ int ttm_get_pages(struct list_head *pages, * count. * @flags: ttm flags for page allocation. * @cstate: ttm caching state. + * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set). */ void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags, - enum ttm_caching_state cstate); + enum ttm_caching_state cstate, + dma_addr_t *dma_address); /** * Initialize pool allocator. */ -- cgit v1.2.3-70-g09d2 From 27e8b237944af967e0a808580278d432cb028455 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Thu, 2 Dec 2010 10:24:13 -0500 Subject: ttm: Expand (*populate) to support an array of DMA addresses. We pass in the array of ttm pages to be populated in the GART/MM of the card (or AGP). Patch titled: "ttm: Utilize the DMA API for pages that have TTM_PAGE_FLAG_DMA32 set." uses the DMA API to make those pages have a proper DMA addresses (in the situation where page_to_phys or virt_to_phys do not give use the DMA (bus) address). Since we are using the DMA API on those pages, we should pass in the DMA address to this function so it can save it in its proper fields (later patches use it). [v2: Added reviewed-by tag] Reviewed-by: Thomas Hellstrom Signed-off-by: Konrad Rzeszutek Wilk Tested-by: Ian Campbell --- drivers/gpu/drm/nouveau/nouveau_sgdma.c | 3 ++- drivers/gpu/drm/radeon/radeon_ttm.c | 3 ++- drivers/gpu/drm/ttm/ttm_agp_backend.c | 3 ++- drivers/gpu/drm/ttm/ttm_tt.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c | 3 ++- include/drm/ttm/ttm_bo_driver.h | 4 +++- 6 files changed, 12 insertions(+), 6 deletions(-) (limited to 'include/drm/ttm') diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index 288bacac7e5..edc140ab4df 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -20,7 +20,8 @@ struct nouveau_sgdma_be { static int nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages, - struct page **pages, struct page *dummy_read_page) + struct page **pages, struct page *dummy_read_page, + dma_addr_t *dma_addrs) { struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; struct drm_device *dev = nvbe->dev; diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 01c2c736a1d..6f156e9d3f3 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -655,7 +655,8 @@ struct radeon_ttm_backend { static int radeon_ttm_backend_populate(struct ttm_backend *backend, unsigned long num_pages, struct page **pages, - struct page *dummy_read_page) + struct page *dummy_read_page, + dma_addr_t *dma_addrs) { struct radeon_ttm_backend *gtt; diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c index f999e36f30b..1c4a72f681c 100644 --- a/drivers/gpu/drm/ttm/ttm_agp_backend.c +++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c @@ -47,7 +47,8 @@ struct ttm_agp_backend { static int ttm_agp_populate(struct ttm_backend *backend, unsigned long num_pages, struct page **pages, - struct page *dummy_read_page) + struct page *dummy_read_page, + dma_addr_t *dma_addrs) { struct ttm_agp_backend *agp_be = container_of(backend, struct ttm_agp_backend, backend); diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 0d39001259f..86d5b1745a4 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -169,7 +169,7 @@ int ttm_tt_populate(struct ttm_tt *ttm) } be->func->populate(be, ttm->num_pages, ttm->pages, - ttm->dummy_read_page); + ttm->dummy_read_page, ttm->dma_address); ttm->state = tt_unbound; return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c index 80bc37b274e..87e43e0733b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c @@ -102,7 +102,8 @@ struct vmw_ttm_backend { static int vmw_ttm_populate(struct ttm_backend *backend, unsigned long num_pages, struct page **pages, - struct page *dummy_read_page) + struct page *dummy_read_page, + dma_addr_t *dma_addrs) { struct vmw_ttm_backend *vmw_be = container_of(backend, struct vmw_ttm_backend, backend); diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 6dc4fccda73..ebcd3dd7203 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -50,13 +50,15 @@ struct ttm_backend_func { * @pages: Array of pointers to ttm pages. * @dummy_read_page: Page to be used instead of NULL pages in the * array @pages. + * @dma_addrs: Array of DMA (bus) address of the ttm pages. * * Populate the backend with ttm pages. Depending on the backend, * it may or may not copy the @pages array. */ int (*populate) (struct ttm_backend *backend, unsigned long num_pages, struct page **pages, - struct page *dummy_read_page); + struct page *dummy_read_page, + dma_addr_t *dma_addrs); /** * struct ttm_backend_func member clear * -- cgit v1.2.3-70-g09d2 From 5a893fc28f0393adb7c885a871b8c59e623fd528 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Tue, 22 Feb 2011 13:24:32 -0500 Subject: ttm: Include the 'struct dev' when using the DMA API. This makes the accounting when using 'debug_dma_dump_mappings()' and CONFIG_DMA_API_DEBUG=y be assigned to the correct device instead of 'fallback'. No functional change - just cosmetic. Signed-off-by: Konrad Rzeszutek Wilk --- drivers/gpu/drm/nouveau/nouveau_mem.c | 1 + drivers/gpu/drm/radeon/radeon_ttm.c | 1 + drivers/gpu/drm/ttm/ttm_page_alloc.c | 11 ++++++----- drivers/gpu/drm/ttm/ttm_tt.c | 4 ++-- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 2 +- include/drm/ttm/ttm_bo_driver.h | 1 + include/drm/ttm/ttm_page_alloc.h | 8 ++++++-- 7 files changed, 18 insertions(+), 10 deletions(-) (limited to 'include/drm/ttm') diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index a163c7c612e..931b22142ed 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -559,6 +559,7 @@ nouveau_mem_vram_init(struct drm_device *dev) if (ret) return ret; + dev_priv->ttm.bdev.dev = dev->dev; ret = ttm_bo_device_init(&dev_priv->ttm.bdev, dev_priv->ttm.bo_global_ref.ref.object, &nouveau_bo_driver, DRM_FILE_PAGE_OFFSET, diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index ca045058e49..cfe223f2239 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -513,6 +513,7 @@ int radeon_ttm_init(struct radeon_device *rdev) if (r) { return r; } + rdev->mman.bdev.dev = rdev->dev; /* 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, diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index 737a2a2e46a..35849dbf3ab 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -664,7 +664,7 @@ out: */ int ttm_get_pages(struct list_head *pages, int flags, enum ttm_caching_state cstate, unsigned count, - dma_addr_t *dma_address) + dma_addr_t *dma_address, struct device *dev) { struct ttm_page_pool *pool = ttm_get_pool(flags, cstate); struct page *p = NULL; @@ -685,7 +685,7 @@ int ttm_get_pages(struct list_head *pages, int flags, for (r = 0; r < count; ++r) { if ((flags & TTM_PAGE_FLAG_DMA32) && dma_address) { void *addr; - addr = dma_alloc_coherent(NULL, PAGE_SIZE, + addr = dma_alloc_coherent(dev, PAGE_SIZE, &dma_address[r], gfp_flags); if (addr == NULL) @@ -730,7 +730,7 @@ int ttm_get_pages(struct list_head *pages, int flags, printk(KERN_ERR TTM_PFX "Failed to allocate extra pages " "for large request."); - ttm_put_pages(pages, 0, flags, cstate, NULL); + ttm_put_pages(pages, 0, flags, cstate, NULL, NULL); return r; } } @@ -741,7 +741,8 @@ int ttm_get_pages(struct list_head *pages, int flags, /* Put all pages in pages list to correct pool to wait for reuse */ void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags, - enum ttm_caching_state cstate, dma_addr_t *dma_address) + enum ttm_caching_state cstate, dma_addr_t *dma_address, + struct device *dev) { unsigned long irq_flags; struct ttm_page_pool *pool = ttm_get_pool(flags, cstate); @@ -757,7 +758,7 @@ void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags, void *addr = page_address(p); WARN_ON(!addr || !dma_address[r]); if (addr) - dma_free_coherent(NULL, PAGE_SIZE, + dma_free_coherent(dev, PAGE_SIZE, addr, dma_address[r]); dma_address[r] = 0; diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 86d5b1745a4..0f8fc9ff0c5 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -110,7 +110,7 @@ static struct page *__ttm_tt_get_page(struct ttm_tt *ttm, int index) INIT_LIST_HEAD(&h); ret = ttm_get_pages(&h, ttm->page_flags, ttm->caching_state, 1, - &ttm->dma_address[index]); + &ttm->dma_address[index], ttm->be->bdev->dev); if (ret != 0) return NULL; @@ -304,7 +304,7 @@ static void ttm_tt_free_alloced_pages(struct ttm_tt *ttm) } } ttm_put_pages(&h, count, ttm->page_flags, ttm->caching_state, - ttm->dma_address); + ttm->dma_address, ttm->be->bdev->dev); ttm->state = tt_unpopulated; ttm->first_himem_page = ttm->num_pages; ttm->last_lomem_page = -1; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 10ca97ee020..4a8c7893e8f 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -322,7 +322,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); dev_priv->active_master = &dev_priv->fbdev_master; - + dev_priv->bdev.dev = dev->dev; ret = ttm_bo_device_init(&dev_priv->bdev, dev_priv->bo_global_ref.ref.object, &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET, diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index ebcd3dd7203..4d97014e8c8 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -533,6 +533,7 @@ struct ttm_bo_device { struct list_head device_list; struct ttm_bo_global *glob; struct ttm_bo_driver *driver; + struct device *dev; rwlock_t vm_lock; struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES]; /* diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h index 8062890f725..ccb6b7a240e 100644 --- a/include/drm/ttm/ttm_page_alloc.h +++ b/include/drm/ttm/ttm_page_alloc.h @@ -37,12 +37,14 @@ * @cstate: ttm caching state for the page. * @count: number of pages to allocate. * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set). + * @dev: struct device for appropiate DMA accounting. */ int ttm_get_pages(struct list_head *pages, int flags, enum ttm_caching_state cstate, unsigned count, - dma_addr_t *dma_address); + dma_addr_t *dma_address, + struct device *dev); /** * Put linked list of pages to pool. * @@ -52,12 +54,14 @@ int ttm_get_pages(struct list_head *pages, * @flags: ttm flags for page allocation. * @cstate: ttm caching state. * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set). + * @dev: struct device for appropiate DMA accounting. */ void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags, enum ttm_caching_state cstate, - dma_addr_t *dma_address); + dma_addr_t *dma_address, + struct device *dev); /** * Initialize pool allocator. */ -- cgit v1.2.3-70-g09d2