Contributors: 14
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Rob Clark |
969 |
80.75% |
17 |
47.22% |
| Kalyan Thota |
62 |
5.17% |
1 |
2.78% |
| Krishna Manikandan |
58 |
4.83% |
1 |
2.78% |
| Daniel Vetter |
38 |
3.17% |
5 |
13.89% |
| Stephen Boyd |
16 |
1.33% |
1 |
2.78% |
| Sean Paul |
16 |
1.33% |
2 |
5.56% |
| Jeykumar Sankaran |
10 |
0.83% |
1 |
2.78% |
| Archit Taneja |
10 |
0.83% |
2 |
5.56% |
| Jessica Zhang |
8 |
0.67% |
1 |
2.78% |
| Laurent Pinchart |
5 |
0.42% |
1 |
2.78% |
| Sam Ravnborg |
3 |
0.25% |
1 |
2.78% |
| Maarten Lankhorst |
2 |
0.17% |
1 |
2.78% |
| Thomas Gleixner |
2 |
0.17% |
1 |
2.78% |
| Liu Ying |
1 |
0.08% |
1 |
2.78% |
| Total |
1200 |
|
36 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_vblank.h>
#include "msm_atomic_trace.h"
#include "msm_drv.h"
#include "msm_gem.h"
#include "msm_kms.h"
/*
* Helpers to control vblanks while we flush.. basically just to ensure
* that vblank accounting is switched on, so we get valid seqn/timestamp
* on pageflip events (if requested)
*/
static void vblank_get(struct msm_kms *kms, unsigned crtc_mask)
{
struct drm_crtc *crtc;
for_each_crtc_mask(kms->dev, crtc, crtc_mask) {
if (!crtc->state->active)
continue;
drm_crtc_vblank_get(crtc);
}
}
static void vblank_put(struct msm_kms *kms, unsigned crtc_mask)
{
struct drm_crtc *crtc;
for_each_crtc_mask(kms->dev, crtc, crtc_mask) {
if (!crtc->state->active)
continue;
drm_crtc_vblank_put(crtc);
}
}
static void lock_crtcs(struct msm_kms *kms, unsigned int crtc_mask)
{
int crtc_index;
struct drm_crtc *crtc;
for_each_crtc_mask(kms->dev, crtc, crtc_mask) {
crtc_index = drm_crtc_index(crtc);
mutex_lock_nested(&kms->commit_lock[crtc_index], crtc_index);
}
}
static void unlock_crtcs(struct msm_kms *kms, unsigned int crtc_mask)
{
struct drm_crtc *crtc;
for_each_crtc_mask_reverse(kms->dev, crtc, crtc_mask)
mutex_unlock(&kms->commit_lock[drm_crtc_index(crtc)]);
}
static void msm_atomic_async_commit(struct msm_kms *kms, int crtc_idx)
{
unsigned crtc_mask = BIT(crtc_idx);
trace_msm_atomic_async_commit_start(crtc_mask);
lock_crtcs(kms, crtc_mask);
if (!(kms->pending_crtc_mask & crtc_mask)) {
unlock_crtcs(kms, crtc_mask);
goto out;
}
kms->pending_crtc_mask &= ~crtc_mask;
kms->funcs->enable_commit(kms);
vblank_get(kms, crtc_mask);
/*
* Flush hardware updates:
*/
trace_msm_atomic_flush_commit(crtc_mask);
kms->funcs->flush_commit(kms, crtc_mask);
/*
* Wait for flush to complete:
*/
trace_msm_atomic_wait_flush_start(crtc_mask);
kms->funcs->wait_flush(kms, crtc_mask);
trace_msm_atomic_wait_flush_finish(crtc_mask);
vblank_put(kms, crtc_mask);
kms->funcs->complete_commit(kms, crtc_mask);
unlock_crtcs(kms, crtc_mask);
kms->funcs->disable_commit(kms);
out:
trace_msm_atomic_async_commit_finish(crtc_mask);
}
static void msm_atomic_pending_work(struct kthread_work *work)
{
struct msm_pending_timer *timer = container_of(work,
struct msm_pending_timer, work.work);
msm_atomic_async_commit(timer->kms, timer->crtc_idx);
}
int msm_atomic_init_pending_timer(struct msm_pending_timer *timer,
struct msm_kms *kms, int crtc_idx)
{
timer->kms = kms;
timer->crtc_idx = crtc_idx;
timer->worker = kthread_create_worker(0, "atomic-worker-%d", crtc_idx);
if (IS_ERR(timer->worker)) {
int ret = PTR_ERR(timer->worker);
timer->worker = NULL;
return ret;
}
sched_set_fifo(timer->worker->task);
msm_hrtimer_work_init(&timer->work, timer->worker,
msm_atomic_pending_work,
CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
return 0;
}
void msm_atomic_destroy_pending_timer(struct msm_pending_timer *timer)
{
if (timer->worker)
kthread_destroy_worker(timer->worker);
}
static bool can_do_async(struct drm_atomic_state *state,
struct drm_crtc **async_crtc)
{
struct drm_connector_state *connector_state;
struct drm_connector *connector;
struct drm_crtc_state *crtc_state;
struct drm_crtc *crtc;
int i, num_crtcs = 0;
if (!(state->legacy_cursor_update || state->async_update))
return false;
/* any connector change, means slow path: */
for_each_new_connector_in_state(state, connector, connector_state, i)
return false;
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
if (drm_atomic_crtc_needs_modeset(crtc_state))
return false;
if (!crtc_state->active)
return false;
if (++num_crtcs > 1)
return false;
*async_crtc = crtc;
}
return true;
}
/* Get bitmask of crtcs that will need to be flushed. The bitmask
* can be used with for_each_crtc_mask() iterator, to iterate
* effected crtcs without needing to preserve the atomic state.
*/
static unsigned get_crtc_mask(struct drm_atomic_state *state)
{
struct drm_crtc_state *crtc_state;
struct drm_crtc *crtc;
unsigned i, mask = 0;
for_each_new_crtc_in_state(state, crtc, crtc_state, i)
mask |= drm_crtc_mask(crtc);
return mask;
}
int msm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
{
struct drm_crtc_state *old_crtc_state, *new_crtc_state;
struct drm_crtc *crtc;
int i;
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
if ((old_crtc_state->ctm && !new_crtc_state->ctm) ||
(!old_crtc_state->ctm && new_crtc_state->ctm)) {
new_crtc_state->mode_changed = true;
state->allow_modeset = true;
}
}
return drm_atomic_helper_check(dev, state);
}
void msm_atomic_commit_tail(struct drm_atomic_state *state)
{
struct drm_device *dev = state->dev;
struct msm_drm_private *priv = dev->dev_private;
struct msm_kms *kms = priv->kms;
struct drm_crtc *async_crtc = NULL;
unsigned crtc_mask = get_crtc_mask(state);
bool async = can_do_async(state, &async_crtc);
trace_msm_atomic_commit_tail_start(async, crtc_mask);
kms->funcs->enable_commit(kms);
/*
* Ensure any previous (potentially async) commit has
* completed:
*/
lock_crtcs(kms, crtc_mask);
trace_msm_atomic_wait_flush_start(crtc_mask);
kms->funcs->wait_flush(kms, crtc_mask);
trace_msm_atomic_wait_flush_finish(crtc_mask);
/*
* Now that there is no in-progress flush, prepare the
* current update:
*/
if (kms->funcs->prepare_commit)
kms->funcs->prepare_commit(kms, state);
/*
* Push atomic updates down to hardware:
*/
drm_atomic_helper_commit_modeset_disables(dev, state);
drm_atomic_helper_commit_planes(dev, state, 0);
drm_atomic_helper_commit_modeset_enables(dev, state);
if (async) {
struct msm_pending_timer *timer =
&kms->pending_timers[drm_crtc_index(async_crtc)];
/* async updates are limited to single-crtc updates: */
WARN_ON(crtc_mask != drm_crtc_mask(async_crtc));
/*
* Start timer if we don't already have an update pending
* on this crtc:
*/
if (!(kms->pending_crtc_mask & crtc_mask)) {
ktime_t vsync_time, wakeup_time;
kms->pending_crtc_mask |= crtc_mask;
if (drm_crtc_next_vblank_start(async_crtc, &vsync_time))
goto fallback;
wakeup_time = ktime_sub(vsync_time, ms_to_ktime(1));
msm_hrtimer_queue_work(&timer->work, wakeup_time,
HRTIMER_MODE_ABS);
}
kms->funcs->disable_commit(kms);
unlock_crtcs(kms, crtc_mask);
/*
* At this point, from drm core's perspective, we
* are done with the atomic update, so we can just
* go ahead and signal that it is done:
*/
drm_atomic_helper_commit_hw_done(state);
drm_atomic_helper_cleanup_planes(dev, state);
trace_msm_atomic_commit_tail_finish(async, crtc_mask);
return;
}
fallback:
/*
* If there is any async flush pending on updated crtcs, fold
* them into the current flush.
*/
kms->pending_crtc_mask &= ~crtc_mask;
vblank_get(kms, crtc_mask);
/*
* Flush hardware updates:
*/
trace_msm_atomic_flush_commit(crtc_mask);
kms->funcs->flush_commit(kms, crtc_mask);
unlock_crtcs(kms, crtc_mask);
/*
* Wait for flush to complete:
*/
trace_msm_atomic_wait_flush_start(crtc_mask);
kms->funcs->wait_flush(kms, crtc_mask);
trace_msm_atomic_wait_flush_finish(crtc_mask);
vblank_put(kms, crtc_mask);
lock_crtcs(kms, crtc_mask);
kms->funcs->complete_commit(kms, crtc_mask);
unlock_crtcs(kms, crtc_mask);
kms->funcs->disable_commit(kms);
drm_atomic_helper_commit_hw_done(state);
drm_atomic_helper_cleanup_planes(dev, state);
trace_msm_atomic_commit_tail_finish(async, crtc_mask);
}