From: Rob Clark robdclark@chromium.org

Before open-coding this a 2nd time, add a helper.

Signed-off-by: Rob Clark robdclark@chromium.org --- drivers/gpu/drm/msm/msm_atomic.c | 21 ++++++--------------- drivers/gpu/drm/msm/msm_drv.c | 29 +++++++++++++++++++++++++++++ drivers/gpu/drm/msm/msm_drv.h | 22 ++++++++++++++++++++++ drivers/gpu/drm/msm/msm_kms.h | 3 +-- 4 files changed, 58 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index fab09e7c6efc..27c9ae563f2f 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -116,20 +116,10 @@ static void msm_atomic_async_commit(struct msm_kms *kms, int crtc_idx) trace_msm_atomic_async_commit_finish(crtc_mask); }

-static enum hrtimer_restart msm_atomic_pending_timer(struct hrtimer *t) -{ - struct msm_pending_timer *timer = container_of(t, - struct msm_pending_timer, timer); - - kthread_queue_work(timer->worker, &timer->work); - - return HRTIMER_NORESTART; -} - static void msm_atomic_pending_work(struct kthread_work *work) { struct msm_pending_timer *timer = container_of(work, - struct msm_pending_timer, work); + struct msm_pending_timer, work.work);

msm_atomic_async_commit(timer->kms, timer->crtc_idx); } @@ -139,8 +129,6 @@ int msm_atomic_init_pending_timer(struct msm_pending_timer *timer, { timer->kms = kms; timer->crtc_idx = crtc_idx; - hrtimer_init(&timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); - timer->timer.function = msm_atomic_pending_timer;

timer->worker = kthread_create_worker(0, "atomic-worker-%d", crtc_idx); if (IS_ERR(timer->worker)) { @@ -149,7 +137,10 @@ int msm_atomic_init_pending_timer(struct msm_pending_timer *timer, return ret; } sched_set_fifo(timer->worker->task); - kthread_init_work(&timer->work, msm_atomic_pending_work); + + msm_hrtimer_work_init(&timer->work, timer->worker, + msm_atomic_pending_work, + CLOCK_MONOTONIC, HRTIMER_MODE_ABS);

return 0; } @@ -258,7 +249,7 @@ void msm_atomic_commit_tail(struct drm_atomic_state *state) vsync_time = kms->funcs->vsync_time(kms, async_crtc); wakeup_time = ktime_sub(vsync_time, ms_to_ktime(1));

- hrtimer_start(&timer->timer, wakeup_time, + msm_hrtimer_queue_work(&timer->work, wakeup_time, HRTIMER_MODE_ABS); }

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 938765ad7109..624078b3adf2 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -200,6 +200,35 @@ void msm_rmw(void __iomem *addr, u32 mask, u32 or) msm_writel(val | or, addr); }

+static enum hrtimer_restart msm_hrtimer_worktimer(struct hrtimer *t) +{ + struct msm_hrtimer_work *work = container_of(t, + struct msm_hrtimer_work, timer); + + kthread_queue_work(work->worker, &work->work); + + return HRTIMER_NORESTART; +} + +void msm_hrtimer_queue_work(struct msm_hrtimer_work *work, + ktime_t wakeup_time, + enum hrtimer_mode mode) +{ + hrtimer_start(&work->timer, wakeup_time, mode); +} + +void msm_hrtimer_work_init(struct msm_hrtimer_work *work, + struct kthread_worker *worker, + kthread_work_func_t fn, + clockid_t clock_id, + enum hrtimer_mode mode) +{ + hrtimer_init(&work->timer, clock_id, mode); + work->timer.function = msm_hrtimer_worktimer; + work->worker = worker; + kthread_init_work(&work->work, fn); +} + static irqreturn_t msm_irq(int irq, void *arg) { struct drm_device *dev = arg; diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 8b005d1ac899..de062450add4 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -488,6 +488,28 @@ void msm_writel(u32 data, void __iomem *addr); u32 msm_readl(const void __iomem *addr); void msm_rmw(void __iomem *addr, u32 mask, u32 or);

+/** + * struct msm_hrtimer_work - a helper to combine an hrtimer with kthread_work + * + * @timer: hrtimer to control when the kthread work is triggered + * @work: the kthread work + * @worker: the kthread worker the work will be scheduled on + */ +struct msm_hrtimer_work { + struct hrtimer timer; + struct kthread_work work; + struct kthread_worker *worker; +}; + +void msm_hrtimer_queue_work(struct msm_hrtimer_work *work, + ktime_t wakeup_time, + enum hrtimer_mode mode); +void msm_hrtimer_work_init(struct msm_hrtimer_work *work, + struct kthread_worker *worker, + kthread_work_func_t fn, + clockid_t clock_id, + enum hrtimer_mode mode); + struct msm_gpu_submitqueue; int msm_submitqueue_init(struct drm_device *drm, struct msm_file_private *ctx); struct msm_gpu_submitqueue *msm_submitqueue_get(struct msm_file_private *ctx, diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h index de2bc3467bb5..6a42b819abc4 100644 --- a/drivers/gpu/drm/msm/msm_kms.h +++ b/drivers/gpu/drm/msm/msm_kms.h @@ -136,8 +136,7 @@ struct msm_kms; * shortly before vblank to flush pending async updates. */ struct msm_pending_timer { - struct hrtimer timer; - struct kthread_work work; + struct msm_hrtimer_work work; struct kthread_worker *worker; struct msm_kms *kms; unsigned crtc_idx;