diff options
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 40 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 1 |
2 files changed, 23 insertions, 18 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 6309d27045a6..74e09dcae75f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1437,11 +1437,30 @@ static int etnaviv_gpu_clk_disable(struct etnaviv_gpu *gpu) return 0; } +int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms); + + do { + u32 idle = gpu_read(gpu, VIVS_HI_IDLE_STATE); + + if ((idle & gpu->idle_mask) == gpu->idle_mask) + return 0; + + if (time_is_before_jiffies(timeout)) { + dev_warn(gpu->dev, + "timed out waiting for idle: idle=0x%x\n", + idle); + return -ETIMEDOUT; + } + + udelay(5); + } while (1); +} + static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu) { if (gpu->buffer) { - unsigned long timeout; - /* Replace the last WAIT with END */ etnaviv_buffer_end(gpu); @@ -1450,22 +1469,7 @@ static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu) * happen quickly (as the WAIT is only 200 cycles). If * we fail, just warn and continue. */ - timeout = jiffies + msecs_to_jiffies(100); - do { - u32 idle = gpu_read(gpu, VIVS_HI_IDLE_STATE); - - if ((idle & gpu->idle_mask) == gpu->idle_mask) - break; - - if (time_is_before_jiffies(timeout)) { - dev_warn(gpu->dev, - "timed out waiting for idle: idle=0x%x\n", - idle); - break; - } - - udelay(5); - } while (1); + etnaviv_gpu_wait_idle(gpu, 100); } return etnaviv_gpu_clk_disable(gpu); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h index a69cdd526bf8..303450b1f981 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h @@ -214,6 +214,7 @@ struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf); int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu); void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu); +int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms); extern struct platform_driver etnaviv_gpu_driver; |