[PATCH] drm/amdgpu/gfx10: ignore rlc ucode validation

[Chen, Guchun]

Reviewed-by: Guchun Chen <guchun.chen at amd.com>

Regards,
Guchun

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
Sent: Thursday, September 29, 2022 3:31 AM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: [PATCH] drm/amdgpu/gfx10: ignore rlc ucode validation

There are apparently ucode versions in the wild with incorrect sizes specified in the header.  We never checked this before, so don't start now.

Bug: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fdrm%2Famd%2F-%2Fissues%2F2170&data=05%7C01%7Cguchun.chen%40amd.com%7C83b76835cb62401dd4a408daa18800ea%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637999902754962693%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=BvwLB%2BugxkJ11k%2Bu6Cz6MvdgUJsZ6sE77VETnIUD41s%3D&reserved=0
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 18809c3da178..af94ac580d3e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4061,9 +4061,14 @@ static int gfx_v10_0_init_microcode(struct amdgpu_device *adev)
 		err = request_firmware(&adev->gfx.rlc_fw, fw_name, adev->dev);
 		if (err)
 			goto out;
+		/* don't check this.  There are apparently firmwares in the wild with
+		 * incorrect size in the header
+		 */
 		err = amdgpu_ucode_validate(adev->gfx.rlc_fw);
 		if (err)
-			goto out;
+			dev_dbg(adev->dev,
+				"gfx10: amdgpu_ucode_validate() failed \"%s\"\n",
+				fw_name);
 		rlc_hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data;
 		version_major = le16_to_cpu(rlc_hdr->header.header_version_major);
 		version_minor = le16_to_cpu(rlc_hdr->header.header_version_minor);
--
2.37.3