This replaces the usage of the subclassed atomic state (mdp5_state)
with a private_obj state embedded within drm_atomic_state. The latter
method is the preferred approach, since it's simpler to implement
and less prone to errors.
The new API replaces the older and equivalent mdp5_state usage in the
following pattern:
- References to "mdp5_kms->state" (i.e, the old/existing state) is
replaced with mdp5_get_existing_global_state(). In the atomic_check
path, this should be called with the glob_state_lock drm_modeset_lock
alredy taken.
- References to "mdp5_get_state()" are replaced with
mdp5_get_global_state(). This acquires glob_state_lock and uses
drm_atomic_get_private_obj_state() to create a new duplicated state.
Signed-off-by: Archit Taneja <arch...@codeaurora.org>
---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 10 ++++++++--
drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c | 12 ++++++------
drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c | 20 +++++++++++---------
drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c | 17 ++++++++++++-----
4 files changed, 37 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index dfc4d81124d5..dabb58ad068c 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -190,20 +190,26 @@ static void mdp5_prepare_commit(struct msm_kms *kms,
struct drm_atomic_state *st
{
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
struct device *dev = &mdp5_kms->pdev->dev;
+ struct mdp5_global_state *global_state;
+
+ global_state = mdp5_get_existing_global_state(mdp5_kms);
pm_runtime_get_sync(dev);
if (mdp5_kms->smp)
- mdp5_smp_prepare_commit(mdp5_kms->smp, &mdp5_kms->state->smp);
+ mdp5_smp_prepare_commit(mdp5_kms->smp, &global_state->smp);
}
static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state
*state)
{
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
struct device *dev = &mdp5_kms->pdev->dev;
+ struct mdp5_global_state *global_state;
+
+ global_state = mdp5_get_existing_global_state(mdp5_kms);
if (mdp5_kms->smp)
- mdp5_smp_complete_commit(mdp5_kms->smp, &mdp5_kms->state->smp);
+ mdp5_smp_complete_commit(mdp5_kms->smp, &global_state->smp);
pm_runtime_put_autosuspend(dev);
}
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
index 8a00991f03c7..113e6b569562 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.c
@@ -52,14 +52,14 @@ int mdp5_mixer_assign(struct drm_atomic_state *s, struct
drm_crtc *crtc,
{
struct msm_drm_private *priv = s->dev->dev_private;
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms));
- struct mdp5_state *state = mdp5_get_state(s);
+ struct mdp5_global_state *global_state = mdp5_get_global_state(s);
struct mdp5_hw_mixer_state *new_state;
int i;
- if (IS_ERR(state))
- return PTR_ERR(state);
+ if (IS_ERR(global_state))
+ return PTR_ERR(global_state);
- new_state = &state->hwmixer;
+ new_state = &global_state->hwmixer;
for (i = 0; i < mdp5_kms->num_hwmixers; i++) {
struct mdp5_hw_mixer *cur = mdp5_kms->hwmixers[i];
@@ -129,8 +129,8 @@ int mdp5_mixer_assign(struct drm_atomic_state *s, struct
drm_crtc *crtc,
void mdp5_mixer_release(struct drm_atomic_state *s, struct mdp5_hw_mixer
*mixer)
{
- struct mdp5_state *state = mdp5_get_state(s);
- struct mdp5_hw_mixer_state *new_state = &state->hwmixer;
+ struct mdp5_global_state *global_state = mdp5_get_global_state(s);
+ struct mdp5_hw_mixer_state *new_state = &global_state->hwmixer;
if (!mixer)
return;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c
index 2bfac3712685..88a8a86c95c7 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c
@@ -22,18 +22,20 @@ struct mdp5_hw_pipe *mdp5_pipe_assign(struct
drm_atomic_state *s,
{
struct msm_drm_private *priv = s->dev->dev_private;
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms));
- struct mdp5_state *state;
+ struct mdp5_global_state *new_global_state, *old_global_state;
struct mdp5_hw_pipe_state *old_state, *new_state;
struct mdp5_hw_pipe *hwpipe = NULL;
int i;
- state = mdp5_get_state(s);
- if (IS_ERR(state))
- return ERR_CAST(state);
+ new_global_state = mdp5_get_global_state(s);
+ if (IS_ERR(new_global_state))
+ return ERR_CAST(new_global_state);
- /* grab old_state after mdp5_get_state(), since now we hold lock: */
- old_state = &mdp5_kms->state->hwpipe;
- new_state = &state->hwpipe;
+ /* grab old_state after mdp5_get_global_state(), since now we hold
lock: */
+ old_global_state = mdp5_get_existing_global_state(mdp5_kms);
+
+ old_state = &old_global_state->hwpipe;
+ new_state = &new_global_state->hwpipe;
for (i = 0; i < mdp5_kms->num_hwpipes; i++) {
struct mdp5_hw_pipe *cur = mdp5_kms->hwpipes[i];
@@ -76,7 +78,7 @@ struct mdp5_hw_pipe *mdp5_pipe_assign(struct drm_atomic_state
*s,
int ret;
DBG("%s: alloc SMP blocks", hwpipe->name);
- ret = mdp5_smp_assign(mdp5_kms->smp, &state->smp,
+ ret = mdp5_smp_assign(mdp5_kms->smp, &new_global_state->smp,
hwpipe->pipe, blkcfg);
if (ret)
return ERR_PTR(-ENOMEM);
@@ -95,7 +97,7 @@ void mdp5_pipe_release(struct drm_atomic_state *s, struct
mdp5_hw_pipe *hwpipe)
{
struct msm_drm_private *priv = s->dev->dev_private;
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms));
- struct mdp5_state *state = mdp5_get_state(s);
+ struct mdp5_global_state *state = mdp5_get_global_state(s);
struct mdp5_hw_pipe_state *new_state = &state->hwpipe;
if (!hwpipe)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c
index ae4983d9d0a5..96c2b828dba4 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c
@@ -340,17 +340,20 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct
drm_printer *p)
struct mdp5_kms *mdp5_kms = get_kms(smp);
struct mdp5_hw_pipe_state *hwpstate;
struct mdp5_smp_state *state;
+ struct mdp5_global_state *global_state;
int total = 0, i, j;
drm_printf(p, "name\tinuse\tplane\n");
drm_printf(p, "----\t-----\t-----\n");
if (drm_can_sleep())
- drm_modeset_lock(&mdp5_kms->state_lock, NULL);
+ drm_modeset_lock(&mdp5_kms->glob_state_lock, NULL);
+
+ global_state = mdp5_get_existing_global_state(mdp5_kms);
/* grab these *after* we hold the state_lock */
- hwpstate = &mdp5_kms->state->hwpipe;
- state = &mdp5_kms->state->smp;
+ hwpstate = &global_state->hwpipe;
+ state = &global_state->smp;
for (i = 0; i < mdp5_kms->num_hwpipes; i++) {
struct mdp5_hw_pipe *hwpipe = mdp5_kms->hwpipes[i];
@@ -374,7 +377,7 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer
*p)
bitmap_weight(state->state, smp->blk_cnt));
if (drm_can_sleep())
- drm_modeset_unlock(&mdp5_kms->state_lock);
+ drm_modeset_unlock(&mdp5_kms->glob_state_lock);
}
void mdp5_smp_destroy(struct mdp5_smp *smp)
@@ -384,7 +387,8 @@ void mdp5_smp_destroy(struct mdp5_smp *smp)
struct mdp5_smp *mdp5_smp_init(struct mdp5_kms *mdp5_kms, const struct
mdp5_smp_block *cfg)
{
- struct mdp5_smp_state *state = &mdp5_kms->state->smp;
+ struct mdp5_smp_state *state;
+ struct mdp5_global_state *global_state;
struct mdp5_smp *smp = NULL;
int ret;
@@ -398,6 +402,9 @@ struct mdp5_smp *mdp5_smp_init(struct mdp5_kms *mdp5_kms,
const struct mdp5_smp_
smp->blk_cnt = cfg->mmb_count;
smp->blk_size = cfg->mmb_size;
+ global_state = mdp5_get_existing_global_state(mdp5_kms);
+ state = &global_state->smp;
+
/* statically tied MMBs cannot be re-allocated: */
bitmap_copy(state->state, cfg->reserved_state, smp->blk_cnt);
memcpy(smp->reserved, cfg->reserved, sizeof(smp->reserved));
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
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