[PATCH 07/14] drm/amdgpu/si, cik, vi: Verify IP block when querying video codecs

["Timur Kristóf" <timur.kristof@gmail.com>]

Some harvested chips may not have any IP blocks,
or we may not have the firmware for the IP blocks.
In these cases, the query should return that no video
codec is supported.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 3 ++-
 drivers/gpu/drm/amd/amdgpu/cik.c        | 6 ++++++
 drivers/gpu/drm/amd/amdgpu/si.c         | 6 ++++++
 drivers/gpu/drm/amd/amdgpu/vi.c         | 6 ++++++
 4 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index b3e6b3fcdf2c..42b5da59d00f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -1263,7 +1263,8 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 			-EFAULT : 0;
 	}
 	case AMDGPU_INFO_VIDEO_CAPS: {
-		const struct amdgpu_video_codecs *codecs;
+		static const struct amdgpu_video_codecs no_codecs = {0};
+		const struct amdgpu_video_codecs *codecs = &no_codecs;
 		struct drm_amdgpu_info_video_caps *caps;
 		int r;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index 9cd63b4177bf..b755238c2c3d 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -130,6 +130,12 @@ static const struct amdgpu_video_codecs cik_video_codecs_decode =
 static int cik_query_video_codecs(struct amdgpu_device *adev, bool encode,
 				  const struct amdgpu_video_codecs **codecs)
 {
+	const enum amd_ip_block_type ip =
+		encode ? AMD_IP_BLOCK_TYPE_VCE : AMD_IP_BLOCK_TYPE_UVD;
+
+	if (!amdgpu_device_ip_is_valid(adev, ip))
+		return 0;
+
 	switch (adev->asic_type) {
 	case CHIP_BONAIRE:
 	case CHIP_HAWAII:
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c
index e0f139de7991..9468c03bdb1b 100644
--- a/drivers/gpu/drm/amd/amdgpu/si.c
+++ b/drivers/gpu/drm/amd/amdgpu/si.c
@@ -1003,6 +1003,12 @@ static const struct amdgpu_video_codecs hainan_video_codecs_decode =
 static int si_query_video_codecs(struct amdgpu_device *adev, bool encode,
 				 const struct amdgpu_video_codecs **codecs)
 {
+	const enum amd_ip_block_type ip =
+		encode ? AMD_IP_BLOCK_TYPE_VCE : AMD_IP_BLOCK_TYPE_UVD;
+
+	if (!amdgpu_device_ip_is_valid(adev, ip))
+		return 0;
+
 	switch (adev->asic_type) {
 	case CHIP_VERDE:
 	case CHIP_TAHITI:
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index a611a7345125..f0e4193cf722 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -256,6 +256,12 @@ static const struct amdgpu_video_codecs cz_video_codecs_decode =
 static int vi_query_video_codecs(struct amdgpu_device *adev, bool encode,
 				 const struct amdgpu_video_codecs **codecs)
 {
+	const enum amd_ip_block_type ip =
+		encode ? AMD_IP_BLOCK_TYPE_VCE : AMD_IP_BLOCK_TYPE_UVD;
+
+	if (!amdgpu_device_ip_is_valid(adev, ip))
+		return 0;
+
 	switch (adev->asic_type) {
 	case CHIP_TOPAZ:
 		if (encode)
-- 
2.51.0