Sometimes we just want to see the atomic state, without getting so many
other debug traces. So add a new drm.debug bit for that.
Note: it would be nice to put the helpers for printing plane/crtc state
next to plane/crtc state structs.. so someone adding new stuff to the
state structs is more likely to remember to update the corresponding
print_state() fxn. But the header include order for that doesn't really
work out.
Also, just including the corresponding mdp bits as an example. Dumps
out something like:
[drm] plane[24]: RGB0
[drm] crtc=crtc-0
[drm] fb=35
[drm] crtc-pos=[0,0, 720x400]
[drm] src-pos=[0,0, 720x400]
[drm] rotation=0
[drm] premultiplied=0
[drm] zpos=1
[drm] alpha=255
[drm] stage=STAGE0
[drm] mode_changed=1
[drm] pending=0
[drm] crtc[27]: crtc-0
[drm] enable=1
[drm] active=0
[drm] planes_changed=1
[drm] mode_changed=1
[drm] active_changed=0
[drm] connectors_changed=1
[drm] color_mgmt_changed=0
[drm] plane_mask=1
[drm] connector_mask=1
[drm] encoder_mask=1
[drm] mode: 0:"1920x1080" 60 148500 1920 2008 2052 2200 1080 1084 1089 1125
0x48 0x5
---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 3 ++
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h | 28 ++++++++++++++++++
drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c | 4 ++-
include/drm/drmP.h | 47 ++++++++++++++++++++++++++++++-
4 files changed, 80 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index e42f62d..da84179 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -435,6 +435,9 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
DBG("%s: event: %p", mdp5_crtc->name, crtc->state->event);
+ DRM_DEBUG_STATE("crtc[%u]: %s\n", crtc->base.id, crtc->name);
+ drm_print_crtc_state(crtc->state);
+
WARN_ON(mdp5_crtc->event);
spin_lock_irqsave(&dev->event_lock, flags);
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
index e4b3fb3..466acbc 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
@@ -92,6 +92,22 @@ struct mdp5_plane_state {
#define to_mdp5_plane_state(x) \
container_of(x, struct mdp5_plane_state, base)
+static inline const char *stage2name(enum mdp_mixer_stage_id stage);
+
+static inline void
+mdp5_print_plane_state(const struct mdp5_plane_state *state)
+{
+ const struct drm_plane *plane = state->base.plane;
+ DRM_DEBUG_STATE("plane[%u]: %s\n", plane->base.id, plane->name);
+ drm_print_plane_state(&state->base);
+ DRM_DEBUG_STATE("\tpremultiplied=%u\n", state->premultiplied);
+ DRM_DEBUG_STATE("\tzpos=%u\n", state->zpos);
+ DRM_DEBUG_STATE("\talpha=%u\n", state->alpha);
+ DRM_DEBUG_STATE("\tstage=%s\n", stage2name(state->stage));
+ DRM_DEBUG_STATE("\tmode_changed=%u\n", state->mode_changed);
+ DRM_DEBUG_STATE("\tpending=%u\n", state->pending);
+}
+
enum mdp5_intf_mode {
MDP5_INTF_MODE_NONE = 0,
@@ -120,6 +136,18 @@ static inline u32 mdp5_read(struct mdp5_kms *mdp5_kms, u32
reg)
return msm_readl(mdp5_kms->mmio + reg);
}
+static inline const char *stage2name(enum mdp_mixer_stage_id stage)
+{
+ static const char *names[] = {
+#define NAME(n) [n] = #n
+ NAME(STAGE_UNUSED), NAME(STAGE_BASE),
+ NAME(STAGE0), NAME(STAGE1), NAME(STAGE2),
+ NAME(STAGE3), NAME(STAGE4), NAME(STAGE6),
+#undef NAME
+ };
+ return names[stage];
+}
+
static inline const char *pipe2name(enum mdp5_pipe pipe)
{
static const char *names[] = {
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
index 432c098..df301df 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
@@ -356,6 +356,8 @@ static void mdp5_plane_atomic_update(struct drm_plane
*plane,
DBG("%s: update", mdp5_plane->name);
+ mdp5_print_plane_state(to_mdp5_plane_state(state));
+
if (!plane_enabled(state)) {
to_mdp5_plane_state(state)->pending = true;
} else if (to_mdp5_plane_state(state)->mode_changed) {
@@ -904,7 +906,7 @@ struct drm_plane *mdp5_plane_init(struct drm_device *dev,
type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
ret = drm_universal_plane_init(dev, plane, 0xff, &mdp5_plane_funcs,
mdp5_plane->formats, mdp5_plane->nformats,
- type, NULL);
+ type, "%s", mdp5_plane->name);
if (ret)
goto fail;
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 28d341a..0ee0aa4 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -133,6 +133,7 @@ struct dma_buf_attachment;
#define DRM_UT_PRIME 0x08
#define DRM_UT_ATOMIC 0x10
#define DRM_UT_VBL 0x20
+#define DRM_UT_STATE 0x40
extern __printf(2, 3)
void drm_ut_debug_printk(const char *function_name,
@@ -193,6 +194,8 @@ void drm_err(const char *format, ...);
#define DRM_INFO_ONCE(fmt, ...) \
printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
+extern unsigned int drm_debug;
+
/**
* Debug output.
*
@@ -230,6 +233,49 @@ void drm_err(const char *format, ...);
if (unlikely(drm_debug & DRM_UT_VBL)) \
drm_ut_debug_printk(__func__, fmt, ##args); \
} while (0)
+#define DRM_DEBUG_STATE(fmt, args...) \
+ do { \
+ if (unlikely(drm_debug & DRM_UT_STATE)) \
+ DRM_INFO(fmt, ##args); \
+ } while (0)
+
+
+static inline void
+drm_print_crtc_state(const struct drm_crtc_state *state)
+{
+ const struct drm_display_mode *mode = &state->mode;
+
+ DRM_DEBUG_STATE("\tenable=%d\n", state->enable);
+ DRM_DEBUG_STATE("\tactive=%d\n", state->active);
+ DRM_DEBUG_STATE("\tplanes_changed=%d\n", state->planes_changed);
+ DRM_DEBUG_STATE("\tmode_changed=%d\n", state->mode_changed);
+ DRM_DEBUG_STATE("\tactive_changed=%d\n", state->active_changed);
+ DRM_DEBUG_STATE("\tconnectors_changed=%d\n", state->connectors_changed);
+ DRM_DEBUG_STATE("\tcolor_mgmt_changed=%d\n", state->color_mgmt_changed);
+ DRM_DEBUG_STATE("\tplane_mask=%x\n", state->plane_mask);
+ DRM_DEBUG_STATE("\tconnector_mask=%x\n", state->connector_mask);
+ DRM_DEBUG_STATE("\tencoder_mask=%x\n", state->encoder_mask);
+ DRM_DEBUG_STATE("\tmode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x
0x%x\n",
+ mode->base.id, mode->name, mode->vrefresh, mode->clock,
+ mode->hdisplay, mode->hsync_start,
+ mode->hsync_end, mode->htotal,
+ mode->vdisplay, mode->vsync_start,
+ mode->vsync_end, mode->vtotal, mode->type, mode->flags);
+}
+
+static inline void
+drm_print_plane_state(const struct drm_plane_state *state)
+{
+ DRM_DEBUG_STATE("\tcrtc=%s\n", state->crtc ? state->crtc->name :
"(null)");
+ DRM_DEBUG_STATE("\tfb=%d\n", state->fb ? state->fb->base.id : -1);
+ DRM_DEBUG_STATE("\tcrtc-pos=[%d,%d, %ux%u]\n",
+ state->crtc_x, state->crtc_y,
+ state->crtc_w, state->crtc_h);
+ DRM_DEBUG_STATE("\tsrc-pos=[%u,%u, %ux%u]\n",
+ state->src_x >> 16, state->src_y >> 16,
+ state->src_w >> 16, state->src_h >> 16);
+ DRM_DEBUG_STATE("\trotation=%x\n", state->rotation);
+}
/*@}*/
@@ -988,7 +1034,6 @@ static inline wait_queue_head_t
*drm_crtc_vblank_waitqueue(struct drm_crtc *crtc
/* drm_drv.c */
void drm_put_dev(struct drm_device *dev);
void drm_unplug_dev(struct drm_device *dev);
-extern unsigned int drm_debug;
/* Debugfs support */
#if defined(CONFIG_DEBUG_FS)
--
2.7.4
