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drm/msm: a6xx: fix version check for the A650 SQE microcode 

I suppose the microcode version check for a650 is incorrect. It checks
for the version 1.95, while the firmware released have major version of 0:
0.91 (vulnerable), 0.99 (fixing the issue).

Lower version requirements to accept firmware 0.99.

Fixes: 8490f02a3c ("drm/msm: a6xx: Make sure the SQE microcode is safe")
Cc: Akhil P Oommen <akhilpo@codeaurora.org>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Jordan Crouse <jordan@cosmicpenguin.net>
Message-Id: <20210331140223.3771449-1-dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Dmitry Baryshkov 2021-03-31 17:02:23 +03:00 committed by Rob Clark
parent 9fbd308835
commit 6ddbfa1f5a
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/msm/adreno/a6xx_gpu.c
View File

@ -567,17 +567,17 @@ static bool a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu,
} else {
/*
* a650 tier targets don't need whereami but still need to be
* equal to or newer than 1.95 for other security fixes
* equal to or newer than 0.95 for other security fixes
*/
if (adreno_is_a650(adreno_gpu)) {
if ((buf[0] & 0xfff) >= 0x195) {
if ((buf[0] & 0xfff) >= 0x095) {
ret = true;
goto out;
}
DRM_DEV_ERROR(&gpu->pdev->dev,
"a650 SQE ucode is too old. Have version %x need at least %x\n",
buf[0] & 0xfff, 0x195);
buf[0] & 0xfff, 0x095);
}
/*