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Commit fceffb32 authored by Rob Clark's avatar Rob Clark Committed by Sean Paul
Browse files

drm/atomic: add new drm_debug bit to dump atomic state 



The contents of drm_{plane,crtc,connector}_state is dumped before
commit.  If a driver extends any of the state structs, it can implement
the corresponding funcs->atomic_print_state() to add it's own driver
specific state.

Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
[seanpaul resolved conflict in drm_plane.h]
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
parent 1638d30c

drivers/gpu/drm/drm_atomic.c

+93 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <drm/drm_atomic.h>

#include <drm/drm_mode.h>

#include <drm/drm_plane_helper.h>

#include <drm/drm_print.h>



#include "drm_crtc_internal.h"
@@ -602,6 +603,28 @@ static int drm_atomic_crtc_check(struct drm_crtc *crtc, 
	return 0;

}



static void drm_atomic_crtc_print_state(struct drm_printer *p,

		const struct drm_crtc_state *state)

{

	struct drm_crtc *crtc = state->crtc;



	drm_printf(p, "crtc[%u]: %s\n", crtc->base.id, crtc->name);

	drm_printf(p, "\tenable=%d\n", state->enable);

	drm_printf(p, "\tactive=%d\n", state->active);

	drm_printf(p, "\tplanes_changed=%d\n", state->planes_changed);

	drm_printf(p, "\tmode_changed=%d\n", state->mode_changed);

	drm_printf(p, "\tactive_changed=%d\n", state->active_changed);

	drm_printf(p, "\tconnectors_changed=%d\n", state->connectors_changed);

	drm_printf(p, "\tcolor_mgmt_changed=%d\n", state->color_mgmt_changed);

	drm_printf(p, "\tplane_mask=%x\n", state->plane_mask);

	drm_printf(p, "\tconnector_mask=%x\n", state->connector_mask);

	drm_printf(p, "\tencoder_mask=%x\n", state->encoder_mask);

	drm_printf(p, "\tmode: " DRM_MODE_FMT "\n", DRM_MODE_ARG(&state->mode));



	if (crtc->funcs->atomic_print_state)

		crtc->funcs->atomic_print_state(p, state);

}



/**

 * drm_atomic_get_plane_state - get plane state

 * @state: global atomic state object
@@ -878,6 +901,38 @@ static int drm_atomic_plane_check(struct drm_plane *plane, 
	return 0;

}



static void drm_atomic_plane_print_state(struct drm_printer *p,

		const struct drm_plane_state *state)

{

	struct drm_plane *plane = state->plane;

	struct drm_rect src  = drm_plane_state_src(state);

	struct drm_rect dest = drm_plane_state_dest(state);



	drm_printf(p, "plane[%u]: %s\n", plane->base.id, plane->name);

	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");

	drm_printf(p, "\tfb=%u\n", state->fb ? state->fb->base.id : 0);

	if (state->fb) {

		struct drm_framebuffer *fb = state->fb;

		int i, n = drm_format_num_planes(fb->pixel_format);



		drm_printf(p, "\t\tformat=%s\n",

				drm_get_format_name(fb->pixel_format));

		drm_printf(p, "\t\tsize=%dx%d\n", fb->width, fb->height);

		drm_printf(p, "\t\tlayers:\n");

		for (i = 0; i < n; i++) {

			drm_printf(p, "\t\t\tpitch[%d]=%u\n", i, fb->pitches[i]);

			drm_printf(p, "\t\t\toffset[%d]=%u\n", i, fb->offsets[i]);

			drm_printf(p, "\t\t\tmodifier[%d]=0x%llx\n", i, fb->modifier[i]);

		}

	}

	drm_printf(p, "\tcrtc-pos=" DRM_RECT_FMT "\n", DRM_RECT_ARG(&dest));

	drm_printf(p, "\tsrc-pos=" DRM_RECT_FP_FMT "\n", DRM_RECT_FP_ARG(&src));

	drm_printf(p, "\trotation=%x\n", state->rotation);



	if (plane->funcs->atomic_print_state)

		plane->funcs->atomic_print_state(p, state);

}



/**

 * drm_atomic_get_connector_state - get connector state

 * @state: global atomic state object
@@ -993,6 +1048,18 @@ int drm_atomic_connector_set_property(struct drm_connector *connector, 
}

EXPORT_SYMBOL(drm_atomic_connector_set_property);



static void drm_atomic_connector_print_state(struct drm_printer *p,

		const struct drm_connector_state *state)

{

	struct drm_connector *connector = state->connector;



	drm_printf(p, "connector[%u]: %s\n", connector->base.id, connector->name);

	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");



	if (connector->funcs->atomic_print_state)

		connector->funcs->atomic_print_state(p, state);

}



/**

 * drm_atomic_connector_get_property - get property value from connector state

 * @connector: the drm connector to set a property on
@@ -1487,6 +1554,29 @@ int drm_atomic_nonblocking_commit(struct drm_atomic_state *state) 
}

EXPORT_SYMBOL(drm_atomic_nonblocking_commit);



static void drm_atomic_print_state(const struct drm_atomic_state *state)

{

	struct drm_printer p = drm_info_printer(state->dev->dev);

	struct drm_plane *plane;

	struct drm_plane_state *plane_state;

	struct drm_crtc *crtc;

	struct drm_crtc_state *crtc_state;

	struct drm_connector *connector;

	struct drm_connector_state *connector_state;

	int i;



	DRM_DEBUG_ATOMIC("checking %p\n", state);



	for_each_plane_in_state(state, plane, plane_state, i)

		drm_atomic_plane_print_state(&p, plane_state);



	for_each_crtc_in_state(state, crtc, crtc_state, i)

		drm_atomic_crtc_print_state(&p, crtc_state);



	for_each_connector_in_state(state, connector, connector_state, i)

		drm_atomic_connector_print_state(&p, connector_state);

}



/*

 * The big monstor ioctl

 */
@@ -1776,6 +1866,9 @@ int drm_mode_atomic_ioctl(struct drm_device *dev, 
	} else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) {

		ret = drm_atomic_nonblocking_commit(state);

	} else {

		if (unlikely(drm_debug & DRM_UT_STATE))

			drm_atomic_print_state(state);



		ret = drm_atomic_commit(state);

	}

include/drm/drmP.h

+1 −0
Original line number Diff line number Diff line
@@ -135,6 +135,7 @@ 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(6, 7)

void drm_dev_printk(const struct device *dev, const char *level,

include/drm/drm_connector.h

+13 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ struct drm_crtc; 
struct drm_encoder;

struct drm_property;

struct drm_property_blob;

struct drm_printer;

struct edid;



enum drm_connector_force {
@@ -481,6 +482,18 @@ struct drm_connector_funcs { 
				   const struct drm_connector_state *state,

				   struct drm_property *property,

				   uint64_t *val);



	/**

	 * @atomic_print_state:

	 *

	 * If driver subclasses struct &drm_connector_state, it should implement

	 * this optional hook for printing additional driver specific state.

	 *

	 * Do not call this directly, use drm_atomic_connector_print_state()

	 * instead.

	 */

	void (*atomic_print_state)(struct drm_printer *p,

				   const struct drm_connector_state *state);

};



/* mode specified on the command line */

include/drm/drm_crtc.h

+13 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ struct drm_device; 
struct drm_mode_set;

struct drm_file;

struct drm_clip_rect;

struct drm_printer;

struct device_node;

struct dma_fence;

struct edid;
@@ -594,6 +595,18 @@ struct drm_crtc_funcs { 
	 */

	int (*set_crc_source)(struct drm_crtc *crtc, const char *source,

			      size_t *values_cnt);



	/**

	 * @atomic_print_state:

	 *

	 * If driver subclasses struct &drm_crtc_state, it should implement

	 * this optional hook for printing additional driver specific state.

	 *

	 * Do not call this directly, use drm_atomic_crtc_print_state()

	 * instead.

	 */

	void (*atomic_print_state)(struct drm_printer *p,

				   const struct drm_crtc_state *state);

};



/**

include/drm/drm_plane.h

+13 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <drm/drm_mode_object.h>



struct drm_crtc;

struct drm_printer;



/**

 * struct drm_plane_state - mutable plane state
@@ -370,6 +371,18 @@ struct drm_plane_funcs { 
	 * before data structures are torndown.

	 */

	void (*early_unregister)(struct drm_plane *plane);



	/**

	 * @atomic_print_state:

	 *

	 * If driver subclasses struct &drm_plane_state, it should implement

	 * this optional hook for printing additional driver specific state.

	 *

	 * Do not call this directly, use drm_atomic_plane_print_state()

	 * instead.

	 */

	void (*atomic_print_state)(struct drm_printer *p,

				   const struct drm_plane_state *state);

};



/**