diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index d08f78e8033b..31a9bceed32c 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -638,10 +638,8 @@ static void a5xx_cp_err_irq(struct msm_gpu *gpu) } } -static void a5xx_rbbm_err_irq(struct msm_gpu *gpu) +static void a5xx_rbbm_err_irq(struct msm_gpu *gpu, u32 status) { - u32 status = gpu_read(gpu, REG_A5XX_RBBM_INT_0_STATUS); - if (status & A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR) { u32 val = gpu_read(gpu, REG_A5XX_RBBM_AHB_ERROR_STATUS); @@ -653,6 +651,10 @@ static void a5xx_rbbm_err_irq(struct msm_gpu *gpu) /* Clear the error */ gpu_write(gpu, REG_A5XX_RBBM_AHB_CMD, (1 << 4)); + + /* Clear the interrupt */ + gpu_write(gpu, REG_A5XX_RBBM_INT_CLEAR_CMD, + A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR); } if (status & A5XX_RBBM_INT_0_MASK_RBBM_TRANSFER_TIMEOUT) @@ -704,10 +706,16 @@ static irqreturn_t a5xx_irq(struct msm_gpu *gpu) { u32 status = gpu_read(gpu, REG_A5XX_RBBM_INT_0_STATUS); - gpu_write(gpu, REG_A5XX_RBBM_INT_CLEAR_CMD, status); + /* + * Clear all the interrupts except RBBM_AHB_ERROR - if we clear it + * before the source is cleared the interrupt will storm. + */ + gpu_write(gpu, REG_A5XX_RBBM_INT_CLEAR_CMD, + status & ~A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR); + /* Pass status to a5xx_rbbm_err_irq because we've already cleared it */ if (status & RBBM_ERROR_MASK) - a5xx_rbbm_err_irq(gpu); + a5xx_rbbm_err_irq(gpu, status); if (status & A5XX_RBBM_INT_0_MASK_CP_HW_ERROR) a5xx_cp_err_irq(gpu); |