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.
Signed-off-by: Antonino Maniscalco <antomani103@xxxxxxxxx>
Reviewed-by: Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx>
Tested-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> # on SM8650-QRD
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 +-
drivers/gpu/drm/msm/msm_ringbuffer.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index bcaec86ac67a..32a4faa93d7f 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1132,7 +1132,7 @@ 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 */
diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.h b/drivers/gpu/drm/msm/msm_ringbuffer.h
index 0d6beb8cd39a..40791b2ade46 100644
--- a/drivers/gpu/drm/msm/msm_ringbuffer.h
+++ b/drivers/gpu/drm/msm/msm_ringbuffer.h
@@ -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];
--
2.46.0
