[PATCH v2 05/14] drm/msm/adreno: Disable has_cached_coherent for A610/A619_holi

From: Konrad Dybcio
Date: Tue Feb 14 2023 - 12:32:27 EST


These SKUs don't support the feature. Disable it to make the GPU stop
crashing after almost each and every submission - the received data on
the GPU end was simply incomplete in garbled, resulting in almost nothing
being executed properly.

Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 36f062c7582f..82757f005a1a 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -540,7 +540,13 @@ static int adreno_bind(struct device *dev, struct device *master, void *data)
config.rev.minor, config.rev.patchid);

priv->is_a2xx = config.rev.core == 2;
- priv->has_cached_coherent = config.rev.core >= 6;
+
+ if (config.rev.core >= 6) {
+ /* Exclude A610 and A619_holi */
+ if (!(adreno_cmp_rev(ADRENO_REV(6, 1, 0, ANY_ID), config.rev) ||
+ adreno_cmp_rev(ADRENO_REV(6, 1, 9, 1), config.rev)))
+ priv->has_cached_coherent = true;
+ }

gpu = info->init(drm);
if (IS_ERR(gpu)) {
--
2.39.1