Debug amdgpu_dm could be a complicated task, therefore, this commit adds
tracepoints in some convenient functions such as plane and connector
check inside amdgpu_dm.

Co-developed-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  17 ++
 .../amd/display/amdgpu_dm/amdgpu_dm_trace.h   | 287 ++++++++++++++++++
 2 files changed, 304 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index cb624ee70545..552ca67c2a71 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5424,6 +5424,8 @@ amdgpu_dm_connector_atomic_check(struct drm_connector 
*conn,
        struct drm_crtc_state *new_crtc_state;
        int ret;
 
+       trace_amdgpu_dm_connector_atomic_check(new_con_state);
+
        if (!crtc)
                return 0;
 
@@ -5542,6 +5544,8 @@ static int dm_crtc_helper_atomic_check(struct drm_crtc 
*crtc,
        struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
        int ret = -EINVAL;
 
+       trace_amdgpu_dm_crtc_atomic_check(state);
+
        dm_update_crtc_active_planes(crtc, state);
 
        if (unlikely(!dm_crtc_state->stream &&
@@ -5916,6 +5920,8 @@ static int dm_plane_atomic_check(struct drm_plane *plane,
        struct drm_crtc_state *new_crtc_state;
        int ret;
 
+       trace_amdgpu_dm_plane_atomic_check(state);
+
        dm_plane_state = to_dm_plane_state(state);
 
        if (!dm_plane_state->dc_state)
@@ -5956,6 +5962,8 @@ static void dm_plane_atomic_async_update(struct drm_plane 
*plane,
        struct drm_plane_state *old_state =
                drm_atomic_get_old_plane_state(new_state->state, plane);
 
+       trace_amdgpu_dm_atomic_update_cursor(new_state);
+
        swap(plane->state->fb, new_state->fb);
 
        plane->state->src_x = new_state->src_x;
@@ -7546,6 +7554,8 @@ static void amdgpu_dm_atomic_commit_tail(struct 
drm_atomic_state *state)
        int crtc_disable_count = 0;
        bool mode_set_reset_required = false;
 
+       trace_amdgpu_dm_atomic_commit_tail_begin(state);
+
        drm_atomic_helper_update_legacy_modeset_state(dev, state);
 
        dm_state = dm_atomic_get_new_state(state);
@@ -8616,6 +8626,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
        int ret, i;
        bool lock_and_validation_needed = false;
 
+       trace_amdgpu_dm_atomic_check_begin(state);
+
        ret = drm_atomic_helper_check_modeset(dev, state);
        if (ret)
                goto fail;
@@ -8912,6 +8924,9 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 
        /* Must be success */
        WARN_ON(ret);
+
+       trace_amdgpu_dm_atomic_check_finish(state, ret);
+
        return ret;
 
 fail:
@@ -8922,6 +8937,8 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
        else
                DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
 
+       trace_amdgpu_dm_atomic_check_finish(state, ret);
+
        return ret;
 }
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
index dd34e11b1079..5fb4c4a5c349 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
@@ -30,6 +30,12 @@
 #define _AMDGPU_DM_TRACE_H_
 
 #include <linux/tracepoint.h>
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_plane.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_encoder.h>
+#include <drm/drm_atomic.h>
 
 DECLARE_EVENT_CLASS(amdgpu_dc_reg_template,
                    TP_PROTO(unsigned long *count, uint32_t reg, uint32_t 
value),
@@ -89,6 +95,287 @@ TRACE_EVENT(amdgpu_dc_performance,
                        (unsigned long)__entry->write_delta,
                        (unsigned long)__entry->writes)
 );
+
+TRACE_EVENT(amdgpu_dm_connector_atomic_check,
+           TP_PROTO(const struct drm_connector_state *state),
+           TP_ARGS(state),
+
+           TP_STRUCT__entry(
+                            __field(uint32_t, conn_id)
+                            __field(const struct drm_connector_state *, 
conn_state)
+                            __field(const struct drm_atomic_state *, state)
+                            __field(const struct drm_crtc_commit *, commit)
+                            __field(uint32_t, crtc_id)
+                            __field(uint32_t, best_encoder_id)
+                            __field(enum drm_link_status, link_status)
+                            __field(bool, self_refresh_aware)
+                            __field(enum hdmi_picture_aspect, 
picture_aspect_ratio)
+                            __field(unsigned int, content_type)
+                            __field(unsigned int, hdcp_content_type)
+                            __field(unsigned int, content_protection)
+                            __field(unsigned int, scaling_mode)
+                            __field(u32, colorspace)
+                            __field(u8, max_requested_bpc)
+                            __field(u8, max_bpc)
+           ),
+
+           TP_fast_assign(
+                          __entry->conn_id = state->connector->base.id;
+                          __entry->conn_state = state;
+                          __entry->state = state->state;
+                          __entry->commit = state->commit;
+                          __entry->crtc_id = state->crtc ? 
state->crtc->base.id : 0;
+                          __entry->best_encoder_id = state->best_encoder ?
+                                                     
state->best_encoder->base.id : 0;
+                          __entry->link_status = state->link_status;
+                          __entry->self_refresh_aware = 
state->self_refresh_aware;
+                          __entry->picture_aspect_ratio = 
state->picture_aspect_ratio;
+                          __entry->content_type = state->content_type;
+                          __entry->hdcp_content_type = 
state->hdcp_content_type;
+                          __entry->content_protection = 
state->content_protection;
+                          __entry->scaling_mode = state->scaling_mode;
+                          __entry->colorspace = state->colorspace;
+                          __entry->max_requested_bpc = 
state->max_requested_bpc;
+                          __entry->max_bpc = state->max_bpc;
+           ),
+
+           TP_printk("conn_id=%u conn_state=%p state=%p commit=%p crtc_id=%u "
+                     "best_encoder_id=%u link_status=%d self_refresh_aware=%d "
+                     "picture_aspect_ratio=%d content_type=%u "
+                     "hdcp_content_type=%u content_protection=%u 
scaling_mode=%u "
+                     "colorspace=%u max_requested_bpc=%u max_bpc=%u",
+                     __entry->conn_id, __entry->conn_state, __entry->state,
+                     __entry->commit, __entry->crtc_id, 
__entry->best_encoder_id,
+                     __entry->link_status, __entry->self_refresh_aware,
+                     __entry->picture_aspect_ratio, __entry->content_type,
+                     __entry->hdcp_content_type, __entry->content_protection,
+                     __entry->scaling_mode, __entry->colorspace,
+                     __entry->max_requested_bpc, __entry->max_bpc)
+);
+
+TRACE_EVENT(amdgpu_dm_crtc_atomic_check,
+           TP_PROTO(const struct drm_crtc_state *state),
+           TP_ARGS(state),
+
+           TP_STRUCT__entry(
+                            __field(const struct drm_atomic_state *, state)
+                            __field(const struct drm_crtc_state *, crtc_state)
+                            __field(const struct drm_crtc_commit *, commit)
+                            __field(uint32_t, crtc_id)
+                            __field(bool, enable)
+                            __field(bool, active)
+                            __field(bool, planes_changed)
+                            __field(bool, mode_changed)
+                            __field(bool, active_changed)
+                            __field(bool, connectors_changed)
+                            __field(bool, zpos_changed)
+                            __field(bool, color_mgmt_changed)
+                            __field(bool, no_vblank)
+                            __field(bool, async_flip)
+                            __field(bool, vrr_enabled)
+                            __field(bool, self_refresh_active)
+                            __field(u32, plane_mask)
+                            __field(u32, connector_mask)
+                            __field(u32, encoder_mask)
+           ),
+
+           TP_fast_assign(
+                          __entry->state = state->state;
+                          __entry->crtc_state = state;
+                          __entry->crtc_id = state->crtc->base.id;
+                          __entry->commit = state->commit;
+                          __entry->enable = state->enable;
+                          __entry->active = state->active;
+                          __entry->planes_changed = state->planes_changed;
+                          __entry->mode_changed = state->mode_changed;
+                          __entry->active_changed = state->active_changed;
+                          __entry->connectors_changed = 
state->connectors_changed;
+                          __entry->zpos_changed = state->zpos_changed;
+                          __entry->color_mgmt_changed = 
state->color_mgmt_changed;
+                          __entry->no_vblank = state->no_vblank;
+                          __entry->async_flip = state->async_flip;
+                          __entry->vrr_enabled = state->vrr_enabled;
+                          __entry->self_refresh_active = 
state->self_refresh_active;
+                          __entry->plane_mask = state->plane_mask;
+                          __entry->connector_mask = state->connector_mask;
+                          __entry->encoder_mask = state->encoder_mask;
+           ),
+
+           TP_printk("crtc_id=%u crtc_state=%p state=%p commit=%p changed("
+                     "planes=%d mode=%d active=%d conn=%d zpos=%d 
color_mgmt=%d) "
+                     "state(enable=%d active=%d async_flip=%d vrr_enabled=%d "
+                     "self_refresh_active=%d no_vblank=%d) mask(plane=%x 
conn=%x "
+                     "enc=%x)",
+                     __entry->crtc_id, __entry->crtc_state, __entry->state,
+                     __entry->commit, __entry->planes_changed,
+                     __entry->mode_changed, __entry->active_changed,
+                     __entry->connectors_changed, __entry->zpos_changed,
+                     __entry->color_mgmt_changed, __entry->enable, 
__entry->active,
+                     __entry->async_flip, __entry->vrr_enabled,
+                     __entry->self_refresh_active, __entry->no_vblank,
+                     __entry->plane_mask, __entry->connector_mask,
+                     __entry->encoder_mask)
+);
+
+DECLARE_EVENT_CLASS(amdgpu_dm_plane_state_template,
+           TP_PROTO(const struct drm_plane_state *state),
+           TP_ARGS(state),
+           TP_STRUCT__entry(
+                            __field(uint32_t, plane_id)
+                            __field(enum drm_plane_type, plane_type)
+                            __field(const struct drm_plane_state *, 
plane_state)
+                            __field(const struct drm_atomic_state *, state)
+                            __field(uint32_t, crtc_id)
+                            __field(uint32_t, fb_id)
+                            __field(uint32_t, fb_format)
+                            __field(uint8_t, fb_planes)
+                            __field(uint64_t, fb_modifier)
+                            __field(const struct dma_fence *, fence)
+                            __field(int32_t, crtc_x)
+                            __field(int32_t, crtc_y)
+                            __field(uint32_t, crtc_w)
+                            __field(uint32_t, crtc_h)
+                            __field(uint32_t, src_x)
+                            __field(uint32_t, src_y)
+                            __field(uint32_t, src_w)
+                            __field(uint32_t, src_h)
+                            __field(u32, alpha)
+                            __field(uint32_t, pixel_blend_mode)
+                            __field(unsigned int, rotation)
+                            __field(unsigned int, zpos)
+                            __field(unsigned int, normalized_zpos)
+                            __field(enum drm_color_encoding, color_encoding)
+                            __field(enum drm_color_range, color_range)
+                            __field(bool, visible)
+           ),
+
+           TP_fast_assign(
+                          __entry->plane_id = state->plane->base.id;
+                          __entry->plane_type = state->plane->type;
+                          __entry->plane_state = state;
+                          __entry->state = state->state;
+                          __entry->crtc_id = state->crtc ? 
state->crtc->base.id : 0;
+                          __entry->fb_id = state->fb ? state->fb->base.id : 0;
+                          __entry->fb_format = state->fb ? 
state->fb->format->format : 0;
+                          __entry->fb_planes = state->fb ? 
state->fb->format->num_planes : 0;
+                          __entry->fb_modifier = state->fb ? 
state->fb->modifier : 0;
+                          __entry->fence = state->fence;
+                          __entry->crtc_x = state->crtc_x;
+                          __entry->crtc_y = state->crtc_y;
+                          __entry->crtc_w = state->crtc_w;
+                          __entry->crtc_h = state->crtc_h;
+                          __entry->src_x = state->src_x >> 16;
+                          __entry->src_y = state->src_y >> 16;
+                          __entry->src_w = state->src_w >> 16;
+                          __entry->src_h = state->src_h >> 16;
+                          __entry->alpha = state->alpha;
+                          __entry->pixel_blend_mode = state->pixel_blend_mode;
+                          __entry->rotation = state->rotation;
+                          __entry->zpos = state->zpos;
+                          __entry->normalized_zpos = state->normalized_zpos;
+                          __entry->color_encoding = state->color_encoding;
+                          __entry->color_range = state->color_range;
+                          __entry->visible = state->visible;
+           ),
+
+           TP_printk("plane_id=%u plane_type=%d plane_state=%p state=%p "
+                     "crtc_id=%u fb(id=%u fmt=%c%c%c%c planes=%u mod=%llu) "
+                     "fence=%p crtc_x=%d crtc_y=%d crtc_w=%u crtc_h=%u "
+                     "src_x=%u src_y=%u src_w=%u src_h=%u alpha=%u "
+                     "pixel_blend_mode=%u rotation=%u zpos=%u "
+                     "normalized_zpos=%u color_encoding=%d color_range=%d "
+                     "visible=%d",
+                     __entry->plane_id, __entry->plane_type, 
__entry->plane_state,
+                     __entry->state, __entry->crtc_id, __entry->fb_id,
+                     (__entry->fb_format & 0xff) ? (__entry->fb_format & 0xff) 
: 'N',
+                     ((__entry->fb_format >> 8) & 0xff) ? ((__entry->fb_format 
>> 8) & 0xff) : 'O',
+                     ((__entry->fb_format >> 16) & 0xff) ? 
((__entry->fb_format >> 16) & 0xff) : 'N',
+                     ((__entry->fb_format >> 24) & 0x7f) ? 
((__entry->fb_format >> 24) & 0x7f) : 'E',
+                     __entry->fb_planes,
+                     __entry->fb_modifier, __entry->fence, __entry->crtc_x,
+                     __entry->crtc_y, __entry->crtc_w, __entry->crtc_h,
+                     __entry->src_x, __entry->src_y, __entry->src_w, 
__entry->src_h,
+                     __entry->alpha, __entry->pixel_blend_mode, 
__entry->rotation,
+                     __entry->zpos, __entry->normalized_zpos,
+                     __entry->color_encoding, __entry->color_range,
+                     __entry->visible)
+);
+
+DEFINE_EVENT(amdgpu_dm_plane_state_template, amdgpu_dm_plane_atomic_check,
+            TP_PROTO(const struct drm_plane_state *state),
+            TP_ARGS(state));
+
+DEFINE_EVENT(amdgpu_dm_plane_state_template, amdgpu_dm_atomic_update_cursor,
+            TP_PROTO(const struct drm_plane_state *state),
+            TP_ARGS(state));
+
+TRACE_EVENT(amdgpu_dm_atomic_state_template,
+           TP_PROTO(const struct drm_atomic_state *state),
+           TP_ARGS(state),
+
+           TP_STRUCT__entry(
+                            __field(const struct drm_atomic_state *, state)
+                            __field(bool, allow_modeset)
+                            __field(bool, legacy_cursor_update)
+                            __field(bool, async_update)
+                            __field(bool, duplicated)
+                            __field(int, num_connector)
+                            __field(int, num_private_objs)
+           ),
+
+           TP_fast_assign(
+                          __entry->state = state;
+                          __entry->allow_modeset = state->allow_modeset;
+                          __entry->legacy_cursor_update = 
state->legacy_cursor_update;
+                          __entry->async_update = state->async_update;
+                          __entry->duplicated = state->duplicated;
+                          __entry->num_connector = state->num_connector;
+                          __entry->num_private_objs = state->num_private_objs;
+           ),
+
+           TP_printk("state=%p allow_modeset=%d legacy_cursor_update=%d "
+                     "async_update=%d duplicated=%d num_connector=%d "
+                     "num_private_objs=%d",
+                     __entry->state, __entry->allow_modeset, 
__entry->legacy_cursor_update,
+                     __entry->async_update, __entry->duplicated, 
__entry->num_connector,
+                     __entry->num_private_objs)
+);
+
+DEFINE_EVENT(amdgpu_dm_atomic_state_template, 
amdgpu_dm_atomic_commit_tail_begin,
+            TP_PROTO(const struct drm_atomic_state *state),
+            TP_ARGS(state));
+
+DEFINE_EVENT(amdgpu_dm_atomic_state_template, 
amdgpu_dm_atomic_commit_tail_finish,
+            TP_PROTO(const struct drm_atomic_state *state),
+            TP_ARGS(state));
+
+DEFINE_EVENT(amdgpu_dm_atomic_state_template, amdgpu_dm_atomic_check_begin,
+            TP_PROTO(const struct drm_atomic_state *state),
+            TP_ARGS(state));
+
+TRACE_EVENT(amdgpu_dm_atomic_check_finish,
+           TP_PROTO(const struct drm_atomic_state *state, int res),
+           TP_ARGS(state, res),
+
+           TP_STRUCT__entry(
+                            __field(const struct drm_atomic_state *, state)
+                            __field(int, res)
+                            __field(bool, async_update)
+                            __field(bool, allow_modeset)
+           ),
+
+           TP_fast_assign(
+                          __entry->state = state;
+                          __entry->res = res;
+                          __entry->async_update = state->async_update;
+                          __entry->allow_modeset = state->allow_modeset;
+           ),
+
+           TP_printk("state=%p res=%d async_update=%d allow_modeset=%d",
+                     __entry->state, __entry->res,
+                     __entry->async_update, __entry->allow_modeset)
+);
+
 #endif /* _AMDGPU_DM_TRACE_H_ */
 
 #undef TRACE_INCLUDE_PATH
-- 
2.28.0

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