On 5/7/2022 10:09 AM, Dmitry Baryshkov wrote:
Handling the array of CRTC duplicate the struct msm_drm_private
duplicates a list of CRTCs in the drm_device. Drop it and use the
There seem to be two duplicates in the commit text :)
So this should just be "handling the array of CRTCs duplicates a list of
of CRTCs in the drm_device.
existing list for CRTC enumeration.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
Changes since v1:
- Intialize the index variable in msm_drm_init() / event thread
initialization.
---
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 +-
drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 2 +-
drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 2 +-
drivers/gpu/drm/msm/msm_drv.c | 29 ++++++++++++------------
drivers/gpu/drm/msm/msm_drv.h | 3 +--
5 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 2b9d931474e0..c84859fb2d9b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -808,7 +808,7 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
ret = PTR_ERR(crtc);
return ret;
}
- priv->crtcs[priv->num_crtcs++] = crtc;
+ priv->num_crtcs++;
}
/* All CRTCs are compatible with all encoders */
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
index fb48c8c19ec3..7449c1693e45 100644
--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
@@ -337,7 +337,7 @@ static int modeset_init(struct mdp4_kms *mdp4_kms)
goto fail;
}
- priv->crtcs[priv->num_crtcs++] = crtc;
+ priv->num_crtcs++;
}
/*
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 3d5621a68f85..36808990f840 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -497,7 +497,7 @@ static int modeset_init(struct mdp5_kms *mdp5_kms)
DRM_DEV_ERROR(dev->dev, "failed to construct crtc %d (%d)\n", i, ret);
goto fail;
}
- priv->crtcs[priv->num_crtcs++] = crtc;
+ priv->num_crtcs++;
}
/*
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 4a3dda23e3e0..db676a142ac1 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -144,7 +144,7 @@ static void msm_irq_uninstall(struct drm_device *dev)
struct msm_vblank_work {
struct work_struct work;
- int crtc_id;
+ struct drm_crtc *crtc;
bool enable;
struct msm_drm_private *priv;
};
@@ -157,15 +157,15 @@ static void vblank_ctrl_worker(struct work_struct *work)
struct msm_kms *kms = priv->kms;
if (vbl_work->enable)
- kms->funcs->enable_vblank(kms, priv->crtcs[vbl_work->crtc_id]);
+ kms->funcs->enable_vblank(kms, vbl_work->crtc);
else
- kms->funcs->disable_vblank(kms, priv->crtcs[vbl_work->crtc_id]);
+ kms->funcs->disable_vblank(kms, vbl_work->crtc);
kfree(vbl_work);
}
static int vblank_ctrl_queue_work(struct msm_drm_private *priv,
- int crtc_id, bool enable)
+ struct drm_crtc *crtc, bool enable)
{
struct msm_vblank_work *vbl_work;
@@ -175,7 +175,7 @@ static int vblank_ctrl_queue_work(struct msm_drm_private *priv,
INIT_WORK(&vbl_work->work, vblank_ctrl_worker);
- vbl_work->crtc_id = crtc_id;
+ vbl_work->crtc = crtc;
vbl_work->enable = enable;
vbl_work->priv = priv;
@@ -349,6 +349,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
struct msm_drm_private *priv = dev_get_drvdata(dev);
struct drm_device *ddev;
struct msm_kms *kms;
+ struct drm_crtc *crtc;
int ret, i;
if (drm_firmware_drivers_only())
@@ -422,12 +423,14 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
ddev->mode_config.funcs = &mode_config_funcs;
ddev->mode_config.helper_private = &mode_config_helper_funcs;
- for (i = 0; i < priv->num_crtcs; i++) {
+ drm_for_each_crtc(crtc, ddev) {
+ i = drm_crtc_index(crtc);
+
/* initialize event thread */
- priv->event_thread[i].crtc_id = priv->crtcs[i]->base.id;
+ priv->event_thread[i].crtc = crtc;
priv->event_thread[i].dev = ddev;
Do we really need 'i' here?
Can't we just do priv->event_thread[drm_crtc_index(crtc)]?
priv->event_thread[i].worker = kthread_create_worker(0,
- "crtc_event:%d", priv->event_thread[i].crtc_id);
+ "crtc_event:%d", priv->event_thread[i].crtc->base.id);
if (IS_ERR(priv->event_thread[i].worker)) {
ret = PTR_ERR(priv->event_thread[i].worker);
DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n");
@@ -558,25 +561,23 @@ static void msm_postclose(struct drm_device *dev, struct drm_file *file)
int msm_crtc_enable_vblank(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
- unsigned int pipe = crtc->index;
struct msm_drm_private *priv = dev->dev_private;
struct msm_kms *kms = priv->kms;
if (!kms)
return -ENXIO;
- drm_dbg_vbl(dev, "crtc=%u", pipe);
- return vblank_ctrl_queue_work(priv, pipe, true);
+ drm_dbg_vbl(dev, "crtc=%u", crtc->base.id);
+ return vblank_ctrl_queue_work(priv, crtc, true);
}
void msm_crtc_disable_vblank(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
- unsigned int pipe = crtc->index;
struct msm_drm_private *priv = dev->dev_private;
struct msm_kms *kms = priv->kms;
if (!kms)
return;
- drm_dbg_vbl(dev, "crtc=%u", pipe);
- vblank_ctrl_queue_work(priv, pipe, false);
+ drm_dbg_vbl(dev, "crtc=%u", crtc->base.id);
+ vblank_ctrl_queue_work(priv, crtc, false);
}
/*
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index fdbaad53eb84..2ba57c575e13 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -102,7 +102,7 @@ struct msm_display_topology {
/* Commit/Event thread specific structure */
struct msm_drm_thread {
struct drm_device *dev;
- unsigned int crtc_id;
+ struct drm_crtc *crtc;
struct kthread_worker *worker;
};
@@ -178,7 +178,6 @@ struct msm_drm_private {
struct workqueue_struct *wq;
unsigned int num_crtcs;
- struct drm_crtc *crtcs[MAX_CRTCS];
struct msm_drm_thread event_thread[MAX_CRTCS];
