From 17f0882d5080a2436e4351c2bf497b8e00bc8e74 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 31 Oct 2007 11:33:34 +1100 Subject: drm: add chipset flushing via agp support --- linux-core/drm_agpsupport.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index b68efc64..8c7f570e 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -650,4 +650,12 @@ struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev) } EXPORT_SYMBOL(drm_agp_init_ttm); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) +void drm_agp_flush_chipset(struct drm_device *dev) +{ + agp_flush_chipset(dev->agp->bridge); +} +EXPORT_SYMBOL(drm_agp_flush_chipset); +#endif + #endif /* __OS_HAS_AGP */ -- cgit v1.2.3 From 61cbcb5dbe487c6d4eba04794cbaa0279ab807b0 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 1 Nov 2007 10:34:11 +1100 Subject: drm/ttm: add support for cached un-snooped mappings. This mapping allows cached objects to be mapped in/out of the TT space with the appropriate flushing calls. It should put back the old CACHED functionality for snooped mappings --- linux-core/drm_agpsupport.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index 8c7f570e..7c50f411 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -541,11 +541,15 @@ static int drm_agp_bind_ttm(struct drm_ttm_backend *backend, container_of(backend, struct drm_agp_ttm_backend, backend); DRM_AGP_MEM *mem = agp_be->mem; int ret; + int snooped = (bo_mem->flags & DRM_BO_FLAG_CACHED) && !(bo_mem->flags & DRM_BO_FLAG_CACHED_MAPPED); DRM_DEBUG("drm_agp_bind_ttm\n"); mem->is_flushed = TRUE; - mem->type = (bo_mem->flags & DRM_BO_FLAG_CACHED) ? AGP_USER_CACHED_MEMORY : - AGP_USER_MEMORY; + mem->type = AGP_USER_MEMORY; + /* CACHED MAPPED implies not snooped memory */ + if (snooped) + mem->type = AGP_USER_CACHED_MEMORY; + ret = drm_agp_bind_memory(mem, bo_mem->mm_node->start); if (ret) { DRM_ERROR("AGP Bind memory failed\n"); -- cgit v1.2.3 From 7f6bf84c238a1859ffd409c0ef1f1ca7eb5e6e72 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 5 Nov 2007 12:42:22 +1000 Subject: drm: remove lots of spurious whitespace. Kernel "cleanfile" script run. --- linux-core/drm_agpsupport.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index 7c50f411..08ea7c48 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -506,7 +506,7 @@ static int drm_agp_needs_unbind_cache_adjust(struct drm_ttm_backend *backend) { static int drm_agp_populate(struct drm_ttm_backend *backend, unsigned long num_pages, struct page **pages) { - struct drm_agp_ttm_backend *agp_be = + struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); struct page **cur_page, **last_page = pages + num_pages; DRM_AGP_MEM *mem; @@ -562,7 +562,7 @@ static int drm_agp_bind_ttm(struct drm_ttm_backend *backend, static int drm_agp_unbind_ttm(struct drm_ttm_backend *backend) { - struct drm_agp_ttm_backend *agp_be = + struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); DRM_DEBUG("drm_agp_unbind_ttm\n"); @@ -574,7 +574,7 @@ static int drm_agp_unbind_ttm(struct drm_ttm_backend *backend) { static void drm_agp_clear_ttm(struct drm_ttm_backend *backend) { - struct drm_agp_ttm_backend *agp_be = + struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); DRM_AGP_MEM *mem = agp_be->mem; @@ -604,7 +604,7 @@ static void drm_agp_destroy_ttm(struct drm_ttm_backend *backend) { } } -static struct drm_ttm_backend_func agp_ttm_backend = +static struct drm_ttm_backend_func agp_ttm_backend = { .needs_ub_cache_adjust = drm_agp_needs_unbind_cache_adjust, .populate = drm_agp_populate, @@ -637,7 +637,7 @@ struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev) return NULL; } - + agp_be = drm_ctl_calloc(1, sizeof(*agp_be), DRM_MEM_TTM); if (!agp_be) return NULL; -- cgit v1.2.3 From b437c8ca0fe62a43661a31a3010284926d20f209 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 6 Nov 2007 12:12:10 +1000 Subject: drm/agp: kernel style fixes --- linux-core/drm_agpsupport.c | 39 ++++++++++++++++++--------------------- 1 file changed, 18 insertions(+), 21 deletions(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index 08ea7c48..438899e8 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -498,14 +498,15 @@ int drm_agp_unbind_memory(DRM_AGP_MEM * handle) #define AGP_REQUIRED_MAJOR 0 #define AGP_REQUIRED_MINOR 102 -static int drm_agp_needs_unbind_cache_adjust(struct drm_ttm_backend *backend) { +static int drm_agp_needs_unbind_cache_adjust(struct drm_ttm_backend *backend) +{ return ((backend->flags & DRM_BE_FLAG_BOUND_CACHED) ? 0 : 1); } -static int drm_agp_populate(struct drm_ttm_backend *backend, unsigned long num_pages, - struct page **pages) { - +static int drm_agp_populate(struct drm_ttm_backend *backend, + unsigned long num_pages, struct page **pages) +{ struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); struct page **cur_page, **last_page = pages + num_pages; @@ -521,15 +522,14 @@ static int drm_agp_populate(struct drm_ttm_backend *backend, unsigned long num_p mem = drm_agp_allocate_memory(agp_be->bridge, num_pages, AGP_USER_MEMORY); #endif if (!mem) { - drm_free_memctl(num_pages *sizeof(void *)); + drm_free_memctl(num_pages * sizeof(void *)); return -1; } DRM_DEBUG("Current page count is %ld\n", (long) mem->page_count); mem->page_count = 0; - for (cur_page = pages; cur_page < last_page; ++cur_page) { + for (cur_page = pages; cur_page < last_page; ++cur_page) mem->memory[mem->page_count++] = phys_to_gart(page_to_phys(*cur_page)); - } agp_be->mem = mem; return 0; } @@ -551,17 +551,17 @@ static int drm_agp_bind_ttm(struct drm_ttm_backend *backend, mem->type = AGP_USER_CACHED_MEMORY; ret = drm_agp_bind_memory(mem, bo_mem->mm_node->start); - if (ret) { + if (ret) DRM_ERROR("AGP Bind memory failed\n"); - } + DRM_FLAG_MASKED(backend->flags, (bo_mem->flags & DRM_BO_FLAG_CACHED) ? DRM_BE_FLAG_BOUND_CACHED : 0, DRM_BE_FLAG_BOUND_CACHED); return ret; } -static int drm_agp_unbind_ttm(struct drm_ttm_backend *backend) { - +static int drm_agp_unbind_ttm(struct drm_ttm_backend *backend) +{ struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); @@ -572,8 +572,8 @@ static int drm_agp_unbind_ttm(struct drm_ttm_backend *backend) { return 0; } -static void drm_agp_clear_ttm(struct drm_ttm_backend *backend) { - +static void drm_agp_clear_ttm(struct drm_ttm_backend *backend) +{ struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); DRM_AGP_MEM *mem = agp_be->mem; @@ -583,29 +583,27 @@ static void drm_agp_clear_ttm(struct drm_ttm_backend *backend) { unsigned long num_pages = mem->page_count; backend->func->unbind(backend); agp_free_memory(mem); - drm_free_memctl(num_pages *sizeof(void *)); + drm_free_memctl(num_pages * sizeof(void *)); } agp_be->mem = NULL; } -static void drm_agp_destroy_ttm(struct drm_ttm_backend *backend) { - +static void drm_agp_destroy_ttm(struct drm_ttm_backend *backend) +{ struct drm_agp_ttm_backend *agp_be; if (backend) { DRM_DEBUG("drm_agp_destroy_ttm\n"); agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); if (agp_be) { - if (agp_be->mem) { + if (agp_be->mem) backend->func->clear(backend); - } drm_ctl_free(agp_be, sizeof(*agp_be), DRM_MEM_TTM); } } } -static struct drm_ttm_backend_func agp_ttm_backend = -{ +static struct drm_ttm_backend_func agp_ttm_backend = { .needs_ub_cache_adjust = drm_agp_needs_unbind_cache_adjust, .populate = drm_agp_populate, .clear = drm_agp_clear_ttm, @@ -647,7 +645,6 @@ struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev) agp_be->bridge = dev->agp->bridge; agp_be->populated = FALSE; agp_be->backend.func = &agp_ttm_backend; - // agp_be->backend.mem_type = DRM_BO_MEM_TT; agp_be->backend.dev = dev; return &agp_be->backend; -- cgit v1.2.3 From 5dc5c36e624e5393b5427a159ad34e5fc358cc9f Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 22 Nov 2007 16:10:36 +1000 Subject: drm: major whitespace/coding style realignment with kernel --- linux-core/drm_agpsupport.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index 438899e8..cb665009 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -48,7 +48,7 @@ * Verifies the AGP device has been initialized and acquired and fills in the * drm_agp_info structure with the information in drm_agp_head::agp_info. */ -int drm_agp_info(struct drm_device * dev, struct drm_agp_info *info) +int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info) { DRM_AGP_KERN *kern; @@ -130,7 +130,7 @@ EXPORT_SYMBOL(drm_agp_acquire); int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - return drm_agp_acquire( (struct drm_device *) file_priv->head->dev ); + return drm_agp_acquire((struct drm_device *) file_priv->head->dev); } /** @@ -426,7 +426,7 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev) if (!(head->bridge = agp_backend_acquire(dev->pdev))) { drm_free(head, sizeof(*head), DRM_MEM_AGPLISTS); return NULL; - } + } agp_copy_info(head->bridge, &head->agp_info); agp_backend_release(head->bridge); } else { -- cgit v1.2.3 From dc338921f94daad17055105a38214483d5ac33e1 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 29 Nov 2007 09:37:51 +1000 Subject: drm: more cleanups --- linux-core/drm_agpsupport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index cb665009..b5dcbb35 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -522,7 +522,7 @@ static int drm_agp_populate(struct drm_ttm_backend *backend, mem = drm_agp_allocate_memory(agp_be->bridge, num_pages, AGP_USER_MEMORY); #endif if (!mem) { - drm_free_memctl(num_pages * sizeof(void *)); + drm_free_memctl(num_pages *sizeof(void *)); return -1; } @@ -652,7 +652,7 @@ struct drm_ttm_backend *drm_agp_init_ttm(struct drm_device *dev) EXPORT_SYMBOL(drm_agp_init_ttm); #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) -void drm_agp_flush_chipset(struct drm_device *dev) +void drm_agp_chipset_flush(struct drm_device *dev) { agp_flush_chipset(dev->agp->bridge); } -- cgit v1.2.3 From 4602b6687ebb0dcf5047f2c3d88dccd751558c81 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 29 Nov 2007 09:46:02 +1000 Subject: drm: oops not a cleanup.. --- linux-core/drm_agpsupport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index b5dcbb35..e8bfaea4 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -522,7 +522,7 @@ static int drm_agp_populate(struct drm_ttm_backend *backend, mem = drm_agp_allocate_memory(agp_be->bridge, num_pages, AGP_USER_MEMORY); #endif if (!mem) { - drm_free_memctl(num_pages *sizeof(void *)); + drm_free_memctl(num_pages * sizeof(void *)); return -1; } -- cgit v1.2.3 From 37fb2ac4071f62bad2c36cc9ca84f9c8feee6bf5 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 16 Dec 2007 01:47:51 -0800 Subject: Use dummy_read_page for unpopulated kernel-allocated ttm pages. Previously, dummy_read_page was used only for read-only user allocations; it filled in pages that were not present in the user address map (presumably, these were allocated but never written to pages). This patch allows them to be used for read-only ttms allocated from the kernel, so that applications can over-allocate buffers without forcing every page to be allocated. --- linux-core/drm_agpsupport.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'linux-core/drm_agpsupport.c') diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c index e8bfaea4..02187017 100644 --- a/linux-core/drm_agpsupport.c +++ b/linux-core/drm_agpsupport.c @@ -505,12 +505,14 @@ static int drm_agp_needs_unbind_cache_adjust(struct drm_ttm_backend *backend) static int drm_agp_populate(struct drm_ttm_backend *backend, - unsigned long num_pages, struct page **pages) + unsigned long num_pages, struct page **pages, + struct page *dummy_read_page) { struct drm_agp_ttm_backend *agp_be = container_of(backend, struct drm_agp_ttm_backend, backend); struct page **cur_page, **last_page = pages + num_pages; DRM_AGP_MEM *mem; + int dummy_page_count = 0; if (drm_alloc_memctl(num_pages * sizeof(void *))) return -1; @@ -528,8 +530,16 @@ static int drm_agp_populate(struct drm_ttm_backend *backend, DRM_DEBUG("Current page count is %ld\n", (long) mem->page_count); mem->page_count = 0; - for (cur_page = pages; cur_page < last_page; ++cur_page) - mem->memory[mem->page_count++] = phys_to_gart(page_to_phys(*cur_page)); + for (cur_page = pages; cur_page < last_page; ++cur_page) { + struct page *page = *cur_page; + if (!page) { + page = dummy_read_page; + ++dummy_page_count; + } + mem->memory[mem->page_count++] = phys_to_gart(page_to_phys(page)); + } + if (dummy_page_count) + DRM_DEBUG("Mapped %d dummy pages\n", dummy_page_count); agp_be->mem = mem; return 0; } -- cgit v1.2.3