Merge tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux into drm-misc-next

Backmerging Dave's 'drm-for-v4.12' pull request now that it's landed. There are
a bunch of non-drm changes which are just random bits we hadn't yet picked up in
misc-next.

main drm pull request for 4.12 kernel

Signed-off-by: Sean Paul <seanpaul@chromium.org>

Link: http://patchwork.freedesktop.org/patch/msgid/CAPM=9ty0jHgzG18zOr5CYODyTqZfH55kOCOFqNnXiWnTb_uNWw@mail.gmail.com

8 files changed, 34 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index aefca0b03f38..c31e660e35db 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3295,7 +3295,7 @@ void r100_bandwidth_update(struct radeon_device *rdev)
 		mem_trp = ((temp >> 8) & 0x7) + 1;
 		mem_tras = ((temp >> 11) & 0xf) + 4;
 	} else if (rdev->family == CHIP_RV350 ||
-		   rdev->family <= CHIP_RV380) {
+		   rdev->family == CHIP_RV380) {
 		/* rv3x0 */
 		mem_trcd = (temp & 0x7) + 3;
 		mem_trp = ((temp >> 8) & 0x7) + 3;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 2e400dc414e3..c1c8e2208a21 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -499,6 +499,7 @@ struct radeon_bo {
 	u32				tiling_flags;
 	u32				pitch;
 	int				surface_reg;
+	unsigned			prime_shared_count;
 	/* list of all virtual address to which this bo
 	 * is associated to
 	 */
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index a8442f7196d6..df6b58c08544 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -164,6 +164,16 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
 			p->relocs[i].allowed_domains = domain;
 		}
 
+		/* Objects shared as dma-bufs cannot be moved to VRAM */
+		if (p->relocs[i].robj->prime_shared_count) {
+			p->relocs[i].allowed_domains &= ~RADEON_GEM_DOMAIN_VRAM;
+			if (!p->relocs[i].allowed_domains) {
+				DRM_ERROR("BO associated with dma-buf cannot "
+					  "be moved to VRAM\n");
+				return -EINVAL;
+			}
+		}
+
 		p->relocs[i].tv.bo = &p->relocs[i].robj->tbo;
 		p->relocs[i].tv.shared = !r->write_domain;
 
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 981385eb5389..17d3dafc8319 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1355,6 +1355,12 @@ radeon_user_framebuffer_create(struct drm_device *dev,
 		return ERR_PTR(-ENOENT);
 	}
 
+	/* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */
+	if (obj->import_attach) {
+		DRM_DEBUG_KMS("Cannot create framebuffer from imported dma_buf\n");
+		return ERR_PTR(-EINVAL);
+	}
+
 	radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
 	if (radeon_fb == NULL) {
 		drm_gem_object_unreference_unlocked(obj);
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 9b0b123ce079..dddb372de2b9 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -120,6 +120,10 @@ static int radeon_gem_set_domain(struct drm_gem_object *gobj,
 			return r;
 		}
 	}
+	if (domain == RADEON_GEM_DOMAIN_VRAM && robj->prime_shared_count) {
+		/* A BO that is associated with a dma-buf cannot be sensibly migrated to VRAM */
+		return -EINVAL;
+	}
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 74b276060c20..bec2ec056de4 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -352,6 +352,11 @@ int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain, u64 max_offset,
 
 		return 0;
 	}
+	if (bo->prime_shared_count && domain == RADEON_GEM_DOMAIN_VRAM) {
+		/* A BO shared as a dma-buf cannot be sensibly migrated to VRAM */
+		return -EINVAL;
+	}
+
 	radeon_ttm_placement_from_domain(bo, domain);
 	for (i = 0; i < bo->placement.num_placement; i++) {
 		/* force to pin into visible video ram */
diff --git a/drivers/gpu/drm/radeon/radeon_prime.c b/drivers/gpu/drm/radeon/radeon_prime.c
index f3609c97496b..7110d403322c 100644
--- a/drivers/gpu/drm/radeon/radeon_prime.c
+++ b/drivers/gpu/drm/radeon/radeon_prime.c
@@ -77,6 +77,7 @@ struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
 	list_add_tail(&bo->list, &rdev->gem.objects);
 	mutex_unlock(&rdev->gem.mutex);
 
+	bo->prime_shared_count = 1;
 	return &bo->gem_base;
 }
 
@@ -91,6 +92,9 @@ int radeon_gem_prime_pin(struct drm_gem_object *obj)
 
 	/* pin buffer into GTT */
 	ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL);
+	if (likely(ret == 0))
+		bo->prime_shared_count++;
+
 	radeon_bo_unreserve(bo);
 	return ret;
 }
@@ -105,6 +109,8 @@ void radeon_gem_prime_unpin(struct drm_gem_object *obj)
 		return;
 
 	radeon_bo_unpin(bo);
+	if (bo->prime_shared_count)
+		bo->prime_shared_count--;
 	radeon_bo_unreserve(bo);
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index aaa3e80fecb4..8b7623b5a624 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -873,6 +873,7 @@ static struct ttm_bo_driver radeon_bo_driver = {
 	.fault_reserve_notify = &radeon_bo_fault_reserve_notify,
 	.io_mem_reserve = &radeon_ttm_io_mem_reserve,
 	.io_mem_free = &radeon_ttm_io_mem_free,
+	.io_mem_pfn = ttm_bo_default_io_mem_pfn,
 };
 
 int radeon_ttm_init(struct radeon_device *rdev)