On Tue, Aug 28, 2018 at 05:39:59PM -0700, Jeykumar Sankaran wrote:
Prep changes for state based resource management.
Moves all the hw block tracking for the crtc to the state
object.
Changes in v4...
Signed-off-by: Jeykumar Sankaran <jsanka@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 60
++++++++++++++++++--------------
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 22 ++++++------
2 files changed, 44 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index e061847..7ab320d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -163,9 +163,9 @@ static void _dpu_crtc_program_lm_output_roi(struct
drm_crtc *crtc)
crtc_state = to_dpu_crtc_state(crtc->state);
lm_horiz_position = 0;
- for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
+ for (lm_idx = 0; lm_idx < crtc_state->num_mixers; lm_idx++) {
const struct drm_rect *lm_roi =
&crtc_state->lm_bounds[lm_idx];
- struct dpu_hw_mixer *hw_lm =
dpu_crtc->mixers[lm_idx].hw_lm;
+ struct dpu_hw_mixer *hw_lm =
crtc_state->mixers[lm_idx].hw_lm;
struct dpu_hw_mixer_cfg cfg;
if (!lm_roi || !drm_rect_visible(lm_roi))
@@ -246,7 +246,7 @@ static void _dpu_crtc_blend_setup_mixer(struct
drm_crtc *crtc,
fb ? fb->modifier : 0);
/* blend config update */
- for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++)
{
+ for (lm_idx = 0; lm_idx < cstate->num_mixers; lm_idx++) {
_dpu_crtc_setup_blend_cfg(mixer + lm_idx,
pstate, format);
@@ -270,7 +270,7 @@ static void _dpu_crtc_blend_setup_mixer(struct
drm_crtc *crtc,
static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
{
struct dpu_crtc *dpu_crtc;
- struct dpu_crtc_state *dpu_crtc_state;
+ struct dpu_crtc_state *cstate;
struct dpu_crtc_mixer *mixer;
struct dpu_hw_ctl *ctl;
struct dpu_hw_mixer *lm;
@@ -281,17 +281,17 @@ static void _dpu_crtc_blend_setup(struct
drm_crtc
*crtc)
return;
dpu_crtc = to_dpu_crtc(crtc);
- dpu_crtc_state = to_dpu_crtc_state(crtc->state);
- mixer = dpu_crtc->mixers;
+ cstate = to_dpu_crtc_state(crtc->state);
+ mixer = cstate->mixers;
DPU_DEBUG("%s\n", dpu_crtc->name);
- if (dpu_crtc->num_mixers > CRTC_DUAL_MIXERS) {
- DPU_ERROR("invalid number mixers: %d\n",
dpu_crtc->num_mixers);
+ if (cstate->num_mixers > CRTC_DUAL_MIXERS) {
This is not possible.
+ DPU_ERROR("invalid number mixers: %d\n",
cstate->num_mixers);
return;
}
- for (i = 0; i < dpu_crtc->num_mixers; i++) {
+ for (i = 0; i < cstate->num_mixers; i++) {
if (!mixer[i].hw_lm || !mixer[i].hw_ctl) {
DPU_ERROR("invalid lm or ctl assigned to
mixer\n");
return;
@@ -308,7 +308,7 @@ static void _dpu_crtc_blend_setup(struct drm_crtc
*crtc)
_dpu_crtc_blend_setup_mixer(crtc, dpu_crtc, mixer);
- for (i = 0; i < dpu_crtc->num_mixers; i++) {
+ for (i = 0; i < cstate->num_mixers; i++) {
ctl = mixer[i].hw_ctl;
lm = mixer[i].hw_lm;
@@ -530,7 +530,7 @@ static void _dpu_crtc_setup_mixer_for_encoder(
struct drm_crtc *crtc,
struct drm_encoder *enc)
{
- struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+ struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
struct dpu_rm *rm = &dpu_kms->rm;
struct dpu_crtc_mixer *mixer;
@@ -542,8 +542,8 @@ static void _dpu_crtc_setup_mixer_for_encoder(
dpu_rm_init_hw_iter(&ctl_iter, enc->base.id, DPU_HW_BLK_CTL);
/* Set up all the mixers and ctls reserved by this encoder */
- for (i = dpu_crtc->num_mixers; i < ARRAY_SIZE(dpu_crtc->mixers);
i++) {
- mixer = &dpu_crtc->mixers[i];
+ for (i = cstate->num_mixers; i < ARRAY_SIZE(cstate->mixers); i++)
{
+ mixer = &cstate->mixers[i];
if (!dpu_rm_get_hw(rm, &lm_iter))
break;
@@ -568,7 +568,7 @@ static void _dpu_crtc_setup_mixer_for_encoder(
mixer->encoder = enc;
- dpu_crtc->num_mixers++;
+ cstate->num_mixers++;
DPU_DEBUG("setup mixer %d: lm %d\n",
i, mixer->hw_lm->idx - LM_0);
DPU_DEBUG("setup mixer %d: ctl %d\n",
@@ -579,11 +579,11 @@ static void _dpu_crtc_setup_mixer_for_encoder(
static void _dpu_crtc_setup_mixers(struct drm_crtc *crtc)
{
struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+ struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
struct drm_encoder *enc;
- dpu_crtc->num_mixers = 0;
- dpu_crtc->mixers_swapped = false;
- memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
+ cstate->num_mixers = 0;
+ memset(cstate->mixers, 0, sizeof(cstate->mixers));
Why is this necessary?
mutex_lock(&dpu_crtc->crtc_lock);
/* Check for mixers on all encoders attached to this crtc */
@@ -618,7 +618,7 @@ static void _dpu_crtc_setup_lm_bounds(struct
drm_crtc *crtc,
crtc_split_width = _dpu_crtc_get_mixer_width(dpu_crtc, cstate,
adj_mode);
- for (i = 0; i < dpu_crtc->num_mixers; i++) {
+ for (i = 0; i < cstate->num_mixers; i++) {
struct drm_rect *r = &cstate->lm_bounds[i];
r->x1 = crtc_split_width * i;
r->y1 = 0;
@@ -635,6 +635,7 @@ static void dpu_crtc_atomic_begin(struct drm_crtc
*crtc,
struct drm_crtc_state *old_state)
{
struct dpu_crtc *dpu_crtc;
+ struct dpu_crtc_state *cstate;
struct drm_encoder *encoder;
struct drm_device *dev;
unsigned long flags;
@@ -654,10 +655,11 @@ static void dpu_crtc_atomic_begin(struct
drm_crtc
*crtc,
DPU_DEBUG("crtc%d\n", crtc->base.id);
dpu_crtc = to_dpu_crtc(crtc);
+ cstate = to_dpu_crtc_state(crtc->state);
dev = crtc->dev;
smmu_state = &dpu_crtc->smmu_state;
- if (!dpu_crtc->num_mixers) {
+ if (!cstate->num_mixers) {
_dpu_crtc_setup_mixers(crtc);
_dpu_crtc_setup_lm_bounds(crtc, crtc->state);
}
@@ -684,7 +686,7 @@ static void dpu_crtc_atomic_begin(struct drm_crtc
*crtc,
* it means we are trying to flush a CRTC whose state is disabled:
* nothing else needs to be done.
*/
- if (unlikely(!dpu_crtc->num_mixers))
+ if (unlikely(!cstate->num_mixers))
return;
_dpu_crtc_blend_setup(crtc);
@@ -748,7 +750,7 @@ static void dpu_crtc_atomic_flush(struct drm_crtc
*crtc,
* it means we are trying to flush a CRTC whose state is disabled:
* nothing else needs to be done.
*/
- if (unlikely(!dpu_crtc->num_mixers))
+ if (unlikely(!cstate->num_mixers))
return;
/*
@@ -863,7 +865,7 @@ void dpu_crtc_commit_kickoff(struct drm_crtc
*crtc)
* it means we are trying to start a CRTC whose state is disabled:
* nothing else needs to be done.
*/
- if (unlikely(!dpu_crtc->num_mixers))
+ if (unlikely(!cstate->num_mixers))
return;
DPU_ATRACE_BEGIN("crtc_commit");
@@ -1097,12 +1099,14 @@ static void dpu_crtc_handle_power_event(u32
event_type, void *arg)
struct drm_crtc *crtc = arg;
struct dpu_crtc *dpu_crtc;
struct drm_encoder *encoder;
+ struct dpu_crtc_state *cstate;
if (!crtc) {
DPU_ERROR("invalid crtc\n");
return;
}
dpu_crtc = to_dpu_crtc(crtc);
+ cstate = to_dpu_crtc_state(dpu_crtc->base.state);
mutex_lock(&dpu_crtc->crtc_lock);
@@ -1197,9 +1201,8 @@ static void dpu_crtc_disable(struct drm_crtc
*crtc)
dpu_power_handle_unregister_event(dpu_crtc->phandle,
dpu_crtc->power_event);
- memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
- dpu_crtc->num_mixers = 0;
- dpu_crtc->mixers_swapped = false;
+ memset(cstate->mixers, 0, sizeof(cstate->mixers));
Same question here, why is this necessary?
+ cstate->num_mixers = 0;
/* disable clk & bw control until clk & bw properties are set */
cstate->bw_control = false;
@@ -1547,6 +1550,8 @@ static int _dpu_debugfs_status_show(struct
seq_file *s, void *data)
dpu_crtc = s->private;
crtc = &dpu_crtc->base;
+
+ drm_modeset_lock(&crtc->mutex, NULL);
When I suggested this, I was hoping you'd put it in a separate patch.
Additionally, you'll probably want modeset_lock_all instead.
cstate = to_dpu_crtc_state(crtc->state);
mutex_lock(&dpu_crtc->crtc_lock);
@@ -1558,8 +1563,8 @@ static int _dpu_debugfs_status_show(struct
seq_file *s, void *data)
seq_puts(s, "\n");
- for (i = 0; i < dpu_crtc->num_mixers; ++i) {
- m = &dpu_crtc->mixers[i];
+ for (i = 0; i < cstate->num_mixers; ++i) {
+ m = &cstate->mixers[i];
if (!m->hw_lm)
seq_printf(s, "\tmixer[%d] has no lm\n", i);
else if (!m->hw_ctl)
@@ -1639,6 +1644,7 @@ static int _dpu_debugfs_status_show(struct
seq_file *s, void *data)
seq_printf(s, "vblank_enable:%d\n", dpu_crtc->vblank_requested);
mutex_unlock(&dpu_crtc->crtc_lock);
+ drm_modeset_unlock(&crtc->mutex);
return 0;
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index 5e4dc5c..7aa772f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -121,11 +121,6 @@ struct dpu_crtc_frame_event {
* struct dpu_crtc - virtualized CRTC data structure
* @base : Base drm crtc structure
* @name : ASCII description of this crtc
- * @num_ctls : Number of ctl paths in use
- * @num_mixers : Number of mixers in use
- * @mixers_swapped: Whether the mixers have been swapped for
left/right
update
- * especially in the case of DSC Merge.
- * @mixers : List of active mixers
* @event : Pointer to last received drm vblank event. If
there
is a
* pending vblank event, this will be non-null.
* @vsync_count : Running count of received vsync events
@@ -164,12 +159,6 @@ struct dpu_crtc {
struct drm_crtc base;
char name[DPU_CRTC_NAME_SIZE];
- /* HW Resources reserved for the crtc */
- u32 num_ctls;
- u32 num_mixers;
- bool mixers_swapped;
- struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
-
struct drm_pending_vblank_event *event;
u32 vsync_count;
@@ -221,6 +210,10 @@ struct dpu_crtc {
* @property_values: Current crtc property values
* @input_fence_timeout_ns : Cached input fence timeout, in ns
* @new_perf: new performance state being requested
+ * @num_mixers : Number of mixers in use
+ * @mixers : List of active mixers
+ * @num_ctls : Number of ctl paths in use
+ * @hw_ctls : List of active ctl paths
*/
struct dpu_crtc_state {
struct drm_crtc_state base;
@@ -232,6 +225,13 @@ struct dpu_crtc_state {
uint64_t input_fence_timeout_ns;
struct dpu_core_perf_params new_perf;
+
+ /* HW Resources reserved for the crtc */
+ u32 num_mixers;
+ struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
+
+ u32 num_ctls;
+ struct dpu_hw_ctl *hw_ctls[CRTC_DUAL_MIXERS];
};
#define to_dpu_crtc_state(x) \
--
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