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drm/msm/dpu: avoid querying for hw intf before assignment 

Resource manager assigns hw_intf blocks for the encoder only on
modeset. If queried for hw_intf objects during init, it will be
NULL. Since hw_intf objects are needed only after encoder enable,
defer the query to encoder enable which will be triggered after
modeset.

changes in v4:
	- Add details on commit text on why the change is needed (Sean)
changes in v5:
	- Reword commit text on the usage of hw_intf objects (Sean)

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jeykumar Sankaran 2018-09-05 19:08:18 -07:00 committed by Rob Clark
parent 3f4db2e2cc
commit 906216baa0
1 changed files with 16 additions and 37 deletions
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53
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
View File

@ -462,7 +462,7 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
{
struct msm_drm_private *priv;
struct dpu_encoder_phys_vid *vid_enc;
struct dpu_hw_intf *intf;
struct dpu_rm_hw_iter iter;
struct dpu_hw_ctl *ctl;
u32 flush_mask = 0;
@ -474,11 +474,20 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
priv = phys_enc->parent->dev->dev_private;
vid_enc = to_dpu_encoder_phys_vid(phys_enc);
intf = vid_enc->hw_intf;
ctl = phys_enc->hw_ctl;
if (!vid_enc->hw_intf || !phys_enc->hw_ctl) {
DPU_ERROR("invalid hw_intf %d hw_ctl %d\n",
vid_enc->hw_intf != 0, phys_enc->hw_ctl != 0);
dpu_rm_init_hw_iter(&iter, phys_enc->parent->base.id, DPU_HW_BLK_INTF);
while (dpu_rm_get_hw(&phys_enc->dpu_kms->rm, &iter)) {
struct dpu_hw_intf *hw_intf = (struct dpu_hw_intf *)iter.hw;
if (hw_intf->idx == phys_enc->intf_idx) {
vid_enc->hw_intf = hw_intf;
break;
}
}
if (!vid_enc->hw_intf) {
DPU_ERROR("hw_intf not assigned\n");
return;
}
@ -500,7 +509,7 @@ static void dpu_encoder_phys_vid_enable(struct dpu_encoder_phys *phys_enc)
!dpu_encoder_phys_vid_is_master(phys_enc))
goto skip_flush;
ctl->ops.get_bitmask_intf(ctl, &flush_mask, intf->idx);
ctl->ops.get_bitmask_intf(ctl, &flush_mask, vid_enc->hw_intf->idx);
ctl->ops.update_pending_flush(ctl, flush_mask);
skip_flush:
@ -531,22 +540,13 @@ static void dpu_encoder_phys_vid_get_hw_resources(
struct dpu_encoder_hw_resources *hw_res,
struct drm_connector_state *conn_state)
{
struct dpu_encoder_phys_vid *vid_enc;
if (!phys_enc || !hw_res) {
DPU_ERROR("invalid arg(s), enc %d hw_res %d conn_state %d\n",
phys_enc != 0, hw_res != 0, conn_state != 0);
return;
}
vid_enc = to_dpu_encoder_phys_vid(phys_enc);
if (!vid_enc->hw_intf) {
DPU_ERROR("invalid arg(s), hw_intf\n");
return;
}
DPU_DEBUG_VIDENC(vid_enc, "\n");
hw_res->intfs[vid_enc->hw_intf->idx - INTF_0] = INTF_MODE_VIDEO;
hw_res->intfs[phys_enc->intf_idx - INTF_0] = INTF_MODE_VIDEO;
}
static int _dpu_encoder_phys_vid_wait_for_vblank(
@ -781,7 +781,6 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init(
{
struct dpu_encoder_phys *phys_enc = NULL;
struct dpu_encoder_phys_vid *vid_enc = NULL;
struct dpu_rm_hw_iter iter;
struct dpu_encoder_irq *irq;
int i, ret = 0;
@ -801,26 +800,6 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init(
phys_enc->hw_mdptop = p->dpu_kms->hw_mdp;
phys_enc->intf_idx = p->intf_idx;
/**
* hw_intf resource permanently assigned to this encoder
* Other resources allocated at atomic commit time by use case
*/
dpu_rm_init_hw_iter(&iter, 0, DPU_HW_BLK_INTF);
while (dpu_rm_get_hw(&p->dpu_kms->rm, &iter)) {
struct dpu_hw_intf *hw_intf = (struct dpu_hw_intf *)iter.hw;
if (hw_intf->idx == p->intf_idx) {
vid_enc->hw_intf = hw_intf;
break;
}
}
if (!vid_enc->hw_intf) {
ret = -EINVAL;
DPU_ERROR("failed to get hw_intf\n");
goto fail;
}
DPU_DEBUG_VIDENC(vid_enc, "\n");
dpu_encoder_phys_vid_init_ops(&phys_enc->ops);