drm/radeon: Respect AGP cant_use_aperture flag.

Some AGP devices can't map the aperture, radeon needs to tell TTM this.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 4c087c1510d7..1227a97f5169 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -133,6 +133,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                 man->gpu_offset = 0;
                 man->available_caching = TTM_PL_MASK_CACHING;
                 man->default_caching = TTM_PL_FLAG_CACHED;
+                man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
 #if __OS_HAS_AGP
                 if (rdev->flags & RADEON_IS_AGP) {
                         if (!(drm_core_has_AGP(rdev->ddev) && rdev->ddev->agp)) {
@@ -143,8 +144,9 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                         man->io_offset = rdev->mc.agp_base;
                         man->io_size = rdev->mc.gtt_size;
                         man->io_addr = NULL;
-                        man->flags = TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
-                                     TTM_MEMTYPE_FLAG_MAPPABLE;
+                        if (!rdev->ddev->agp->cant_use_aperture)
+                                man->flags = TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
+                                             TTM_MEMTYPE_FLAG_MAPPABLE;
                         man->available_caching = TTM_PL_FLAG_UNCACHED |
                                                  TTM_PL_FLAG_WC;
                         man->default_caching = TTM_PL_FLAG_WC;
@@ -154,8 +156,6 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
                         man->io_offset = 0;
                         man->io_size = 0;
                         man->io_addr = NULL;
-                        man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
-                                     TTM_MEMTYPE_FLAG_CMA;
                 }
                 break;
         case TTM_PL_VRAM: