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drm/msm: Fix bv_fence being used as bv_rptr

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The bv_fence field of rbmemptrs was being used incorrectly as the BV
rptr shadow pointer in some places.

Add a bv_rptr field and change the code to use that instead.

Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8450-HDK
Signed-off-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/618010/
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Antonino Maniscalco 2024-10-03 18:12:50 +02:00 committed by Rob Clark
parent 9852d85ec9
commit 76a28f4c0c
2 changed files with 2 additions and 1 deletions
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2
drivers/gpu/drm/msm/adreno/a6xx_gpu.c
View File

@ -1129,7 +1129,7 @@ static int hw_init(struct msm_gpu *gpu)
/* ..which means "always" on A7xx, also for BV shadow */
if (adreno_is_a7xx(adreno_gpu)) {
gpu_write64(gpu, REG_A7XX_CP_BV_RB_RPTR_ADDR,
rbmemptr(gpu->rb[0], bv_fence));
rbmemptr(gpu->rb[0], bv_rptr));
}
/* Always come up on rb 0 */

1
drivers/gpu/drm/msm/msm_ringbuffer.h
View File

@ -31,6 +31,7 @@ struct msm_rbmemptrs {
volatile uint32_t rptr;
volatile uint32_t fence;
/* Introduced on A7xx */
volatile uint32_t bv_rptr;
volatile uint32_t bv_fence;
volatile struct msm_gpu_submit_stats stats[MSM_GPU_SUBMIT_STATS_COUNT];