diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c index d21d05279..714b494f6 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/gk20a.c @@ -545,15 +545,29 @@ int gk20a_sim_esc_read(struct gk20a *g, char *path, u32 index, u32 count, u32 *d static irqreturn_t gk20a_intr_isr_stall(int irq, void *dev_id) { struct gk20a *g = dev_id; + irqreturn_t ret; - return g->ops.mc.isr_stall(g); + ret = g->ops.mc.isr_stall(g); + if (ret == IRQ_WAKE_THREAD) { + /* balanced in gk20a_intr_thread_stall() */ + gk20a_busy_noresume(g->dev); + } + + return ret; } static irqreturn_t gk20a_intr_isr_nonstall(int irq, void *dev_id) { struct gk20a *g = dev_id; + irqreturn_t ret; - return g->ops.mc.isr_nonstall(g); + ret = g->ops.mc.isr_nonstall(g); + if (ret == IRQ_WAKE_THREAD) { + /* balanced in gk20a_intr_thread_nonstall() */ + gk20a_busy_noresume(g->dev); + } + + return ret; } void gk20a_pbus_isr(struct gk20a *g) @@ -593,13 +607,27 @@ void gk20a_pbus_isr(struct gk20a *g) static irqreturn_t gk20a_intr_thread_stall(int irq, void *dev_id) { struct gk20a *g = dev_id; - return g->ops.mc.isr_thread_stall(g); + irqreturn_t ret; + + ret = g->ops.mc.isr_thread_stall(g); + + /* refcount taken in gk20a_intr_isr_stall() */ + gk20a_idle_nosuspend(g->dev); + + return ret; } static irqreturn_t gk20a_intr_thread_nonstall(int irq, void *dev_id) { struct gk20a *g = dev_id; - return g->ops.mc.isr_thread_nonstall(g); + irqreturn_t ret; + + ret = g->ops.mc.isr_thread_nonstall(g); + + /* refcount taken in gk20a_intr_isr_nonstall() */ + gk20a_idle_nosuspend(g->dev); + + return ret; } void gk20a_remove_support(struct device *dev) @@ -1842,6 +1870,11 @@ fail: return ret < 0 ? ret : 0; } +void gk20a_idle_nosuspend(struct device *dev) +{ + pm_runtime_put_noidle(dev); +} + void gk20a_idle(struct device *dev) { #ifdef CONFIG_PM diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h index b7f3f6f15..c7d12f862 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/gk20a.h @@ -1060,6 +1060,7 @@ void gk20a_remove_sysfs(struct device *dev); void gk20a_busy_noresume(struct device *dev); int __must_check gk20a_busy(struct device *dev); +void gk20a_idle_nosuspend(struct device *dev); void gk20a_idle(struct device *dev); void gk20a_disable(struct gk20a *g, u32 units); void gk20a_enable(struct gk20a *g, u32 units);