drm/amdgpu: stop using TTM_MEMTYPE_FLAG_MAPPABLE

The driver does support some not-mapable resources, but
those are already handled correctly in the switch/case
statement in the code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378243/

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 44fa8bc..0dd5e80 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -84,7 +84,7 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
        switch (type) {
        case TTM_PL_SYSTEM:
                /* System memory */
-               man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
+               man->flags = 0;
                man->available_caching = TTM_PL_MASK_CACHING;
                man->default_caching = TTM_PL_FLAG_CACHED;
                break;
@@ -93,13 +93,12 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                man->func = &amdgpu_gtt_mgr_func;
                man->available_caching = TTM_PL_MASK_CACHING;
                man->default_caching = TTM_PL_FLAG_CACHED;
-               man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
+               man->flags = 0;
                break;
        case TTM_PL_VRAM:
                /* "On-card" video ram */
                man->func = &amdgpu_vram_mgr_func;
-               man->flags = TTM_MEMTYPE_FLAG_FIXED |
-                            TTM_MEMTYPE_FLAG_MAPPABLE;
+               man->flags = TTM_MEMTYPE_FLAG_FIXED;
                man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
                man->default_caching = TTM_PL_FLAG_WC;
                break;
@@ -796,7 +795,6 @@ memcpy:
  */
 static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
 {
-       struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
        struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
        struct drm_mm_node *mm_node = mem->mm_node;
 
@@ -805,8 +803,7 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
        mem->bus.size = mem->num_pages << PAGE_SHIFT;
        mem->bus.base = 0;
        mem->bus.is_iomem = false;
-       if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
-               return -EINVAL;
+
        switch (mem->mem_type) {
        case TTM_PL_SYSTEM:
                /* system memory */