diff options
Diffstat (limited to 'drivers/gpu/arm/t72x/r29p0/backend/gpu/mali_kbase_device_hw.c')
| -rw-r--r-- | drivers/gpu/arm/t72x/r29p0/backend/gpu/mali_kbase_device_hw.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/gpu/arm/t72x/r29p0/backend/gpu/mali_kbase_device_hw.c b/drivers/gpu/arm/t72x/r29p0/backend/gpu/mali_kbase_device_hw.c index abb7c25b04fd..e93294a2c4ad 100644 --- a/drivers/gpu/arm/t72x/r29p0/backend/gpu/mali_kbase_device_hw.c +++ b/drivers/gpu/arm/t72x/r29p0/backend/gpu/mali_kbase_device_hw.c @@ -337,15 +337,24 @@ void kbase_gpu_interrupt(struct kbase_device *kbdev, u32 val) if (val & CLEAN_CACHES_COMPLETED) kbase_clean_caches_done(kbdev); - /* When 'platform_power_down_only' is enabled, the L2 cache is not - * powered down, but flushed before the GPU power down (which is done - * by the platform code). So the L2 state machine requests a cache - * flush. And when that flush completes, the L2 state machine needs to - * be re-invoked to proceed with the GPU power down. - */ - if (val & POWER_CHANGED_ALL || - (platform_power_down_only && (val & CLEAN_CACHES_COMPLETED))) + if (val & POWER_CHANGED_ALL) { kbase_pm_power_changed(kbdev); + } else if (val & CLEAN_CACHES_COMPLETED) { + /* When 'platform_power_down_only' is enabled, the L2 cache is + * not powered down, but flushed before the GPU power down + * (which is done by the platform code). So the L2 state machine + * requests a cache flush. And when that flush completes, the L2 + * state machine needs to be re-invoked to proceed with the GPU + * power down. + * If cache line evict messages can be lost when shader cores + * power down then we need to flush the L2 cache before powering + * down cores. When the flush completes, the shaders' state + * machine needs to be re-invoked to proceed with powering down + * cores. + */ + if (platform_power_down_only) + kbase_pm_power_changed(kbdev); + } KBASE_TRACE_ADD(kbdev, CORE_GPU_IRQ_DONE, NULL, NULL, 0u, val); } |