[PATCH 4/4] drm/amdgpu/jpeg: allow type 4 commands

[Benjamin Cheng <benjamin.cheng@amd.com>]

Packet type 4 is used for conditional memory write and can be used to
allow a memory write from within the IB. Now that the vmid's are set up
correctly (IB_WR_VMID is set to the job's vmid), we can enable this with
no issues.

Signed-off-by: Benjamin Cheng <benjamin.cheng@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
index 87f879a2e4f4..2b0e658b63b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
@@ -595,6 +595,12 @@ int amdgpu_jpeg_dec_parse_cs(struct amdgpu_cs_parser *parser,
 				return -EINVAL;
 			}
 			break;
+		case PACKETJ_TYPE4:
+			if (!amdgpu_jpeg_reg_valid(reg)) {
+				dev_err(adev->dev, "Invalid packet [0x%08x]!\n", ib->ptr[i]);
+				return -EINVAL;
+			}
+			break;
 		case PACKETJ_TYPE6:
 			if (ib->ptr[i] == CP_PACKETJ_NOP)
 				continue;
-- 
2.56.0