If the GPU isn't idle after signalling pm_runtime_mark_last_busy() plus
waiting for the autosuspend delay there's likely something wrong with
the way we check idleness so warn about that.
Signed-off-by: Guido Günther <a...@sigxcpu.org>
---
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index da24e433f82a..4fd16b8f8a7a 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1824,8 +1824,11 @@ static int etnaviv_gpu_rpm_suspend(struct device *dev)
mask = gpu->idle_mask & ~(VIVS_HI_IDLE_STATE_FE |
VIVS_HI_IDLE_STATE_MC);
idle = gpu_read(gpu, VIVS_HI_IDLE_STATE) & mask;
- if (idle != mask)
+ if (idle != mask) {
+ dev_warn_ratelimited(dev, "GPU not yet idle, mask: 0x%08x\n",
+ idle);
return -EBUSY;
+ }
return etnaviv_gpu_hw_suspend(gpu);
}
--
2.23.0
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