Merge git://github.com/davem330/sparc

[pandora-kernel.git] / drivers / gpu / drm / radeon / radeon_ttm.c

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 8389b4c..0b5468b 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -277,7 +277,12 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
                DRM_ERROR("Trying to move memory with CP turned off.\n");
                return -EINVAL;
        }
-       r = radeon_copy(rdev, old_start, new_start, new_mem->num_pages, fence);
+
+       BUILD_BUG_ON((PAGE_SIZE % RADEON_GPU_PAGE_SIZE) != 0);
+
+       r = radeon_copy(rdev, old_start, new_start,
+                       new_mem->num_pages * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE), /* GPU pages */
+                       fence);
        /* FIXME: handle copy error */
        r = ttm_bo_move_accel_cleanup(bo, (void *)fence, NULL,
                                      evict, no_wait_reserve, no_wait_gpu, new_mem);
@@ -450,6 +455,29 @@ static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
                        return -EINVAL;
                mem->bus.base = rdev->mc.aper_base;
                mem->bus.is_iomem = true;
+#ifdef __alpha__
+               /*
+                * Alpha: use bus.addr to hold the ioremap() return,
+                * so we can modify bus.base below.
+                */
+               if (mem->placement & TTM_PL_FLAG_WC)
+                       mem->bus.addr =
+                               ioremap_wc(mem->bus.base + mem->bus.offset,
+                                          mem->bus.size);
+               else
+                       mem->bus.addr =
+                               ioremap_nocache(mem->bus.base + mem->bus.offset,
+                                               mem->bus.size);
+
+               /*
+                * Alpha: Use just the bus offset plus
+                * the hose/domain memory base for bus.base.
+                * It then can be used to build PTEs for VRAM
+                * access, as done in ttm_bo_vm_fault().
+                */
+               mem->bus.base = (mem->bus.base & 0x0ffffffffUL) +
+                       rdev->ddev->hose->dense_mem_base;
+#endif
                break;
        default:
                return -EINVAL;
@@ -529,7 +557,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
                DRM_ERROR("Failed initializing VRAM heap.\n");
                return r;
        }
-       r = radeon_bo_create(rdev, NULL, 256 * 1024, PAGE_SIZE, true,
+       r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true,
                                RADEON_GEM_DOMAIN_VRAM,
                                &rdev->stollen_vga_memory);
        if (r) {
@@ -661,6 +689,7 @@ struct radeon_ttm_backend {
        unsigned long                   num_pages;
        struct page                     **pages;
        struct page                     *dummy_read_page;
+       dma_addr_t                      *dma_addrs;
        bool                            populated;
        bool                            bound;
        unsigned                        offset;
@@ -669,12 +698,14 @@ 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;
 
        gtt = container_of(backend, struct radeon_ttm_backend, backend);
        gtt->pages = pages;
+       gtt->dma_addrs = dma_addrs;
        gtt->num_pages = num_pages;
        gtt->dummy_read_page = dummy_read_page;
        gtt->populated = true;
@@ -687,6 +718,7 @@ static void radeon_ttm_backend_clear(struct ttm_backend *backend)
 
        gtt = container_of(backend, struct radeon_ttm_backend, backend);
        gtt->pages = NULL;
+       gtt->dma_addrs = NULL;
        gtt->num_pages = 0;
        gtt->dummy_read_page = NULL;
        gtt->populated = false;
@@ -707,7 +739,7 @@ static int radeon_ttm_backend_bind(struct ttm_backend *backend,
                     gtt->num_pages, bo_mem, backend);
        }
        r = radeon_gart_bind(gtt->rdev, gtt->offset,
-                            gtt->num_pages, gtt->pages);
+                            gtt->num_pages, gtt->pages, gtt->dma_addrs);
        if (r) {
                DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
                          gtt->num_pages, gtt->offset);