diff options
Diffstat (limited to 'src/sna/kgem.c')
| -rw-r--r-- | src/sna/kgem.c | 44 |
1 files changed, 36 insertions, 8 deletions
diff --git a/src/sna/kgem.c b/src/sna/kgem.c index 615e36fe..76451ecc 100644 --- a/src/sna/kgem.c +++ b/src/sna/kgem.c @@ -286,6 +286,7 @@ static void *__kgem_bo_map__gtt(struct kgem *kgem, struct kgem_bo *bo) DBG(("%s(handle=%d, size=%d)\n", __FUNCTION__, bo->handle, bytes(bo))); assert(bo->proxy == NULL); + assert(!bo->snoop); retry_gtt: VG_CLEAR(mmap_arg); @@ -848,7 +849,9 @@ static bool test_has_userptr(struct kgem *kgem) if (kgem->gen == 040) return false; - ptr = malloc(PAGE_SIZE); + if (posix_memalign(&ptr, PAGE_SIZE, PAGE_SIZE)) + return false; + handle = gem_userptr(kgem->fd, ptr, PAGE_SIZE, false); gem_close(kgem->fd, handle); free(ptr); @@ -4804,6 +4807,7 @@ struct kgem_bo *kgem_create_map(struct kgem *kgem, bool read_only) { struct kgem_bo *bo; + uintptr_t first_page, last_page; uint32_t handle; assert(MAP(ptr) == ptr); @@ -4811,22 +4815,44 @@ struct kgem_bo *kgem_create_map(struct kgem *kgem, if (!kgem->has_userptr) return NULL; - handle = gem_userptr(kgem->fd, ptr, size, read_only); + first_page = (uintptr_t)ptr; + last_page = first_page + size + PAGE_SIZE - 1; + + first_page &= ~(PAGE_SIZE-1); + last_page &= ~(PAGE_SIZE-1); + assert(last_page > first_page); + + handle = gem_userptr(kgem->fd, + (void *)first_page, last_page-first_page, + read_only); if (handle == 0) return NULL; - bo = __kgem_bo_alloc(handle, NUM_PAGES(size)); + bo = __kgem_bo_alloc(handle, (last_page - first_page) / PAGE_SIZE); if (bo == NULL) { gem_close(kgem->fd, handle); return NULL; } bo->snoop = !kgem->has_llc; - bo->map = MAKE_USER_MAP(ptr); debug_alloc__bo(kgem, bo); - DBG(("%s(ptr=%p, size=%d, pages=%d, read_only=%d) => handle=%d\n", - __FUNCTION__, ptr, size, NUM_PAGES(size), read_only, handle)); + if (first_page != (uintptr_t)ptr) { + struct kgem_bo *proxy; + + proxy = kgem_create_proxy(kgem, bo, + (uintptr_t)ptr - first_page, size); + kgem_bo_destroy(kgem, bo); + if (proxy == NULL) + return NULL; + + bo = proxy; + } + + bo->map = MAKE_USER_MAP(ptr); + + DBG(("%s(ptr=%p, size=%d, pages=%d, read_only=%d) => handle=%d (proxy? %d)\n", + __FUNCTION__, ptr, size, NUM_PAGES(size), read_only, handle, bo->proxy != NULL)); return bo; } @@ -4946,6 +4972,8 @@ struct kgem_bo *kgem_create_proxy(struct kgem *kgem, bo->dirty = target->dirty; bo->tiling = target->tiling; bo->pitch = target->pitch; + bo->flush = target->flush; + bo->snoop = target->snoop; assert(!bo->scanout); bo->proxy = kgem_bo_reference(target); @@ -5154,7 +5182,7 @@ free_cacheing: return NULL; //if (posix_memalign(&ptr, 64, ALIGN(size, 64))) - if (posix_memalign(&bo->mem, PAGE_SIZE, alloc *PAGE_SIZE)) { + if (posix_memalign(&bo->mem, PAGE_SIZE, alloc * PAGE_SIZE)) { free(bo); return NULL; } @@ -5757,7 +5785,7 @@ kgem_replace_bo(struct kgem *kgem, assert(src->tiling == I915_TILING_NONE); size = height * pitch; - size = PAGE_ALIGN(size) / PAGE_SIZE; + size = NUM_PAGES(size); dst = search_linear_cache(kgem, size, 0); if (dst == NULL) |