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drm/nouveau: use nvif_mmu_type to determine BAR1 caching

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2017-11-01 03:56:20 +10:00
parent 658c71f4e7
commit b34720200b
2 changed files with 3 additions and 2 deletions
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1
drivers/gpu/drm/nouveau/include/nvif/device.h
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@ -58,7 +58,6 @@ u64 nvif_device_time(struct nvif_device *);
#define nvxx_bios(a) nvxx_device(a)->bios
#define nvxx_fb(a) nvxx_device(a)->fb
#define nvxx_mmu(a) nvxx_device(a)->mmu
#define nvxx_bar(a) nvxx_device(a)->bar
#define nvxx_gpio(a) nvxx_device(a)->gpio
#define nvxx_clk(a) nvxx_device(a)->clk
#define nvxx_i2c(a) nvxx_device(a)->i2c

4
drivers/gpu/drm/nouveau/nouveau_bo.c
View File

@ -589,6 +589,7 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man)
{
struct nouveau_drm *drm = nouveau_bdev(bdev);
struct nvif_mmu *mmu = &drm->client.mmu;
switch (type) {
case TTM_PL_SYSTEM:
@ -605,7 +606,8 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
/* Some BARs do not support being ioremapped WC */
if (nvxx_bar(&drm->client.device)->iomap_uncached) {
const u8 type = mmu->type[drm->ttm.type_vram].type;
if (type & NVIF_MEM_UNCACHED) {
man->available_caching = TTM_PL_FLAG_UNCACHED;
man->default_caching = TTM_PL_FLAG_UNCACHED;
}