drm/msm/adreno: Make adreno quirks not overwrite each other

commit 13ef096e342b00e30b95a90c6c13eee1f0bec4c5 upstream.

So far the adreno quirks have all been assigned with an OR operator,
which is problematic, because they were assigned consecutive integer
values, which makes checking them with an AND operator kind of no bueno..

Switch to using BIT(n) so that only the quirks that the programmer chose
are taken into account when evaluating info->quirks & ADRENO_QUIRK_...

Fixes: 370063ee427a ("drm/msm/adreno: Add A540 support")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/516456/
Link: https://lore.kernel.org/r/20230102100201.77286-1-konrad.dybcio@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 225c277..588722e 100644 (file)
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -29,11 +29,9 @@ enum {
        ADRENO_FW_MAX,
 };
 
-enum adreno_quirks {
-       ADRENO_QUIRK_TWO_PASS_USE_WFI = 1,
-       ADRENO_QUIRK_FAULT_DETECT_MASK = 2,
-       ADRENO_QUIRK_LMLOADKILL_DISABLE = 3,
-};
+#define ADRENO_QUIRK_TWO_PASS_USE_WFI          BIT(0)
+#define ADRENO_QUIRK_FAULT_DETECT_MASK         BIT(1)
+#define ADRENO_QUIRK_LMLOADKILL_DISABLE                BIT(2)
 
 struct adreno_rev {
        uint8_t  core;
@@ -65,7 +63,7 @@ struct adreno_info {
        const char *name;
        const char *fw[ADRENO_FW_MAX];
        uint32_t gmem;
-       enum adreno_quirks quirks;
+       u64 quirks;
        struct msm_gpu *(*init)(struct drm_device *dev);
        const char *zapfw;
        u32 inactive_period;