[igt-dev] [PATCH i-g-t] tests/kms_cursor_crc: Fix user space read too slow error

Lisovskiy, Stanislav stanislav.lisovskiy at intel.com
Mon Dec 30 10:02:16 UTC 2019


On Wed, 2019-12-18 at 16:53 +0200, Juha-Pekka Heikkila wrote:
> Having crc running continuously cause this test sometime
> fill crc buffer, fix this problem as well as do some generic
> cleanups.
> 
> v2: Take out gem_sync()
> 
> v3: Use rendercopy if available, otherwise Cairo surface for
> restoring
>     test image
> 
> v4: take out useless assert and restructure a bit
> 
> Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>

> ---
>  tests/kms_cursor_crc.c | 220 ++++++++++++++++++++++++++++++++++-----
> ----------
>  1 file changed, 154 insertions(+), 66 deletions(-)
> 
> diff --git a/tests/kms_cursor_crc.c b/tests/kms_cursor_crc.c
> index 6475dea..630b9be 100644
> --- a/tests/kms_cursor_crc.c
> +++ b/tests/kms_cursor_crc.c
> @@ -48,11 +48,10 @@ IGT_TEST_DESCRIPTION(
>  typedef struct {
>  	int drm_fd;
>  	igt_display_t display;
> -	struct igt_fb primary_fb;
> +	struct igt_fb primary_fb[2];
>  	struct igt_fb fb;
>  	igt_output_t *output;
>  	enum pipe pipe;
> -	igt_crc_t ref_crc;
>  	int left, right, top, bottom;
>  	int screenw, screenh;
>  	int refresh;
> @@ -60,11 +59,24 @@ typedef struct {
>  	int cursor_max_w, cursor_max_h;
>  	igt_pipe_crc_t *pipe_crc;
>  	unsigned flags;
> +	igt_plane_t *primary;
> +	igt_plane_t *cursor;
> +	cairo_surface_t *surface;
> +	uint32_t devid;
> +	drm_intel_bufmgr *bufmgr;
> +	igt_render_copyfunc_t rendercopy;
> +	drm_intel_bo * drmibo[2];
> +	struct intel_batchbuffer *batch;
> +	struct igt_buf igtbo[2];
> +
>  } data_t;
>  
>  #define TEST_DPMS (1<<0)
>  #define TEST_SUSPEND (1<<1)
>  
> +#define FRONTBUFFER 0
> +#define RESTOREBUFFER 1
> +
>  static void draw_cursor(cairo_t *cr, int x, int y, int cw, int ch,
> double a)
>  {
>  	int wl, wr, ht, hb;
> @@ -89,23 +101,15 @@ static void draw_cursor(cairo_t *cr, int x, int
> y, int cw, int ch, double a)
>  
>  static void cursor_enable(data_t *data)
>  {
> -	igt_output_t *output = data->output;
> -	igt_plane_t *cursor =
> -		igt_output_get_plane_type(output,
> DRM_PLANE_TYPE_CURSOR);
> -
> -	igt_plane_set_fb(cursor, &data->fb);
> -	igt_plane_set_size(cursor, data->curw, data->curh);
> -	igt_fb_set_size(&data->fb, cursor, data->curw, data->curh);
> +	igt_plane_set_fb(data->cursor, &data->fb);
> +	igt_plane_set_size(data->cursor, data->curw, data->curh);
> +	igt_fb_set_size(&data->fb, data->cursor, data->curw, data-
> >curh);
>  }
>  
>  static void cursor_disable(data_t *data)
>  {
> -	igt_output_t *output = data->output;
> -	igt_plane_t *cursor =
> -		igt_output_get_plane_type(output,
> DRM_PLANE_TYPE_CURSOR);
> -
> -	igt_plane_set_fb(cursor, NULL);
> -	igt_plane_set_position(cursor, 0, 0);
> +	igt_plane_set_fb(data->cursor, NULL);
> +	igt_plane_set_position(data->cursor, 0, 0);
>  }
>  
>  static bool chv_cursor_broken(data_t *data, int x)
> @@ -144,36 +148,58 @@ static bool cursor_visible(data_t *data, int x,
> int y)
>  	return true;
>  }
>  
> +static void restore_image(data_t *data)
> +{
> +	cairo_t *cr;
> +
> +	if (data->rendercopy != NULL) {
> +		/* use rendercopy if available */
> +		data->rendercopy(data->batch, NULL,
> +				 &data->igtbo[RESTOREBUFFER], 0, 0,
> +				 data->primary_fb[RESTOREBUFFER].width,
> +				 data-
> >primary_fb[RESTOREBUFFER].height,
> +				 &data->igtbo[FRONTBUFFER], 0, 0);
> +	} else {
> +		/* if rendercopy not implemented in igt use cairo */
> +		cr = igt_get_cairo_ctx(data->drm_fd,
> +				       &data->primary_fb[FRONTBUFFER]);
> +		cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
> +		cairo_set_source_surface(cr, data->surface, 0, 0);
> +		cairo_rectangle(cr, 0, 0, data->screenw, data-
> >screenh);
> +		cairo_fill(cr);
> +		igt_put_cairo_ctx(data->drm_fd,
> +				  &data->primary_fb[FRONTBUFFER], cr);
> +	}
> +	igt_dirty_fb(data->drm_fd, &data->primary_fb[FRONTBUFFER]);
> +}
> +
>  static void do_single_test(data_t *data, int x, int y)
>  {
>  	igt_display_t *display = &data->display;
>  	igt_pipe_crc_t *pipe_crc = data->pipe_crc;
>  	igt_crc_t crc, ref_crc;
> -	igt_plane_t *cursor =
> -		igt_output_get_plane_type(data->output,
> DRM_PLANE_TYPE_CURSOR);
>  	cairo_t *cr;
>  	int ret = 0;
>  
>  	igt_print_activity();
>  
>  	/* Hardware test */
> -	cr = igt_get_cairo_ctx(data->drm_fd, &data->primary_fb);
> -	igt_paint_test_pattern(cr, data->screenw, data->screenh);
> -	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +	restore_image(data);
>  
> +	igt_plane_set_position(data->cursor, x, y);
>  	cursor_enable(data);
> -	igt_plane_set_position(cursor, x, y);
>  
>  	if (chv_cursor_broken(data, x) && cursor_visible(data, x, y)) {
>  		ret = igt_display_try_commit2(display, COMMIT_LEGACY);
>  		igt_assert_eq(ret, -EINVAL);
> -		igt_plane_set_position(cursor, 0, y);
> +		igt_plane_set_position(data->cursor, 0, y);
>  
>  		return;
>  	}
>  
>  	igt_display_commit(display);
>  
> +	/* Extra vblank wait is because nonblocking cursor ioctl */
>  	igt_wait_for_vblank(data->drm_fd, data->pipe);
>  	igt_pipe_crc_get_current(data->drm_fd, pipe_crc, &crc);
>  
> @@ -205,45 +231,35 @@ static void do_single_test(data_t *data, int x,
> int y)
>  	}
>  
>  	cursor_disable(data);
> -	igt_display_commit(display);
>  
>  	/* Now render the same in software and collect crc */
> -	cr = igt_get_cairo_ctx(data->drm_fd, &data->primary_fb);
> +	cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER]);
>  	draw_cursor(cr, x, y, data->curw, data->curh, 1.0);
> -	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb[FRONTBUFFER], 
> cr);
>  	igt_display_commit(display);
> -
> +	igt_dirty_fb(data->drm_fd, &data->primary_fb[FRONTBUFFER]);
> +	/* Extra vblank wait is because nonblocking cursor ioctl */
>  	igt_wait_for_vblank(data->drm_fd, data->pipe);
> -	igt_pipe_crc_get_current(data->drm_fd, pipe_crc, &ref_crc);
>  
> +	igt_pipe_crc_get_current(data->drm_fd, pipe_crc, &ref_crc);
>  	igt_assert_crc_equal(&crc, &ref_crc);
> -
> -	/* Clear screen afterwards */
> -	cr = igt_get_cairo_ctx(data->drm_fd, &data->primary_fb);
> -	igt_paint_color(cr, 0, 0, data->screenw, data->screenh, 0.0,
> 0.0, 0.0);
> -	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
>  }
>  
>  static void do_fail_test(data_t *data, int x, int y, int expect)
>  {
>  	igt_display_t *display = &data->display;
> -	igt_plane_t *cursor =
> -		igt_output_get_plane_type(data->output,
> DRM_PLANE_TYPE_CURSOR);
> -	cairo_t *cr;
>  	int ret;
>  
>  	igt_print_activity();
>  
>  	/* Hardware test */
> -	cr = igt_get_cairo_ctx(data->drm_fd, &data->primary_fb);
> -	igt_paint_test_pattern(cr, data->screenw, data->screenh);
> -	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +	restore_image(data);
>  
>  	cursor_enable(data);
> -	igt_plane_set_position(cursor, x, y);
> +	igt_plane_set_position(data->cursor, x, y);
>  	ret = igt_display_try_commit2(display, COMMIT_LEGACY);
>  
> -	igt_plane_set_position(cursor, 0, 0);
> +	igt_plane_set_position(data->cursor, 0, 0);
>  	cursor_disable(data);
>  	igt_display_commit(display);
>  
> @@ -355,31 +371,54 @@ static void cleanup_crtc(data_t *data)
>  	igt_pipe_crc_free(data->pipe_crc);
>  	data->pipe_crc = NULL;
>  
> -	igt_remove_fb(data->drm_fd, &data->primary_fb);
> +	cairo_surface_destroy(data->surface);
> +
> +	igt_plane_set_fb(data->primary, NULL);
> +	igt_display_commit(display);
> +
> +	igt_remove_fb(data->drm_fd, &data->primary_fb[FRONTBUFFER]);
> +	igt_remove_fb(data->drm_fd, &data->primary_fb[RESTOREBUFFER]);
>  
>  	igt_display_reset(display);
>  }
>  
> +static void scratch_buf_init(data_t *data, int buffer)
> +{
> +	data->igtbo[buffer].bo = data->drmibo[buffer];
> +	data->igtbo[buffer].stride = data-
> >primary_fb[buffer].strides[0];
> +	data->igtbo[buffer].tiling = data->primary_fb[buffer].modifier;
> +	data->igtbo[buffer].size = data->primary_fb[buffer].size;
> +	data->igtbo[buffer].bpp = data-
> >primary_fb[buffer].plane_bpp[0];
> +}
> +
>  static void prepare_crtc(data_t *data, igt_output_t *output,
>  			 int cursor_w, int cursor_h)
>  {
>  	drmModeModeInfo *mode;
>  	igt_display_t *display = &data->display;
> -	igt_plane_t *primary;
> +	cairo_t *cr;
>  
>  	/* select the pipe we want to use */
>  	igt_output_set_pipe(output, data->pipe);
>  
> -	/* create and set the primary plane fb */
> +	/* create and set the primary plane fbs */
>  	mode = igt_output_get_mode(output);
>  	igt_create_color_fb(data->drm_fd, mode->hdisplay, mode-
> >vdisplay,
>  			    DRM_FORMAT_XRGB8888,
>  			    LOCAL_DRM_FORMAT_MOD_NONE,
>  			    0.0, 0.0, 0.0,
> -			    &data->primary_fb);
> +			    &data->primary_fb[FRONTBUFFER]);
> +
> +	igt_create_color_fb(data->drm_fd, mode->hdisplay, mode-
> >vdisplay,
> +			    DRM_FORMAT_XRGB8888,
> +			    LOCAL_DRM_FORMAT_MOD_NONE,
> +			    0.0, 0.0, 0.0,
> +			    &data->primary_fb[RESTOREBUFFER]);
>  
> -	primary = igt_output_get_plane_type(output,
> DRM_PLANE_TYPE_PRIMARY);
> -	igt_plane_set_fb(primary, &data->primary_fb);
> +	data->primary = igt_output_get_plane_type(output,
> DRM_PLANE_TYPE_PRIMARY);
> +	data->cursor = igt_output_get_plane_type(output,
> DRM_PLANE_TYPE_CURSOR);
> +
> +	igt_plane_set_fb(data->primary, &data-
> >primary_fb[FRONTBUFFER]);
>  
>  	igt_display_commit(display);
>  
> @@ -398,9 +437,42 @@ static void prepare_crtc(data_t *data,
> igt_output_t *output,
>  	data->curh = cursor_h;
>  	data->refresh = mode->vrefresh;
>  
> -	/* get reference crc w/o cursor */
> +	data->surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24,
> data->screenw, data->screenh);
> +
> +	if (data->rendercopy == NULL) {
> +		/* store test image as cairo surface */
> +		cr = cairo_create(data->surface);
> +		cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
> +		igt_paint_test_pattern(cr, data->screenw, data-
> >screenh);
> +		cairo_destroy(cr);
> +	} else {
> +		/* store test image as fb if rendercopy is available */
> +		cr = igt_get_cairo_ctx(data->drm_fd,
> +		                       &data-
> >primary_fb[RESTOREBUFFER]);
> +		cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
> +		igt_paint_test_pattern(cr, data->screenw, data-
> >screenh);
> +		igt_put_cairo_ctx(data->drm_fd,
> +				  &data->primary_fb[RESTOREBUFFER],
> cr);
> +
> +		data->drmibo[FRONTBUFFER] =
> gem_handle_to_libdrm_bo(data->bufmgr,
> +								    dat
> a->drm_fd,
> +								    "",
> data->primary_fb[FRONTBUFFER].gem_handle);
> +		igt_assert(data->drmibo[FRONTBUFFER]);
> +
> +		data->drmibo[RESTOREBUFFER] =
> gem_handle_to_libdrm_bo(data->bufmgr,
> +								      d
> ata->drm_fd,
> +								      "
> ", data->primary_fb[RESTOREBUFFER].gem_handle);
> +		igt_assert(data->drmibo[RESTOREBUFFER]);
> +
> +		scratch_buf_init(data, RESTOREBUFFER);
> +		scratch_buf_init(data, FRONTBUFFER);
> +
> +		data->batch = intel_batchbuffer_alloc(data->bufmgr,
> +						      data->devid);
> +		igt_assert(data->batch);
> +	}
> +
>  	igt_pipe_crc_start(data->pipe_crc);
> -	igt_pipe_crc_get_current(data->drm_fd, data->pipe_crc, &data-
> >ref_crc);
>  }
>  
>  static void test_cursor_alpha(data_t *data, double a)
> @@ -432,9 +504,9 @@ static void test_cursor_alpha(data_t *data,
> double a)
>  	igt_remove_fb(data->drm_fd, &data->fb);
>  
>  	/*Software Test*/
> -	cr = igt_get_cairo_ctx(data->drm_fd, &data->primary_fb);
> +	cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER]);
>  	igt_paint_color_alpha(cr, 0, 0, curw, curh, 1.0, 1.0, 1.0, a);
> -	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb[FRONTBUFFER], 
> cr);
>  
>  	igt_display_commit(display);
>  	igt_wait_for_vblank(data->drm_fd, data->pipe);
> @@ -442,10 +514,10 @@ static void test_cursor_alpha(data_t *data,
> double a)
>  	igt_assert_crc_equal(&crc, &ref_crc);
>  
>  	/*Clear Screen*/
> -	cr = igt_get_cairo_ctx(data->drm_fd, &data->primary_fb);
> +	cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER]);
>  	igt_paint_color(cr, 0, 0, data->screenw, data->screenh,
>  			0.0, 0.0, 0.0);
> -	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +	igt_put_cairo_ctx(data->drm_fd, &data->primary_fb[FRONTBUFFER], 
> cr);
>  }
>  
>  static void test_cursor_transparent(data_t *data)
> @@ -521,8 +593,6 @@ static void test_cursor_size(data_t *data)
>  	uint32_t fb_id;
>  	int i, size;
>  	int cursor_max_size = data->cursor_max_w;
> -	igt_plane_t *cursor =
> -		igt_output_get_plane_type(data->output,
> DRM_PLANE_TYPE_CURSOR);
>  
>  	/* Create a maximum size cursor, then change the size in flight
> to
>  	 * smaller ones to see that the size is applied correctly
> @@ -541,8 +611,8 @@ static void test_cursor_size(data_t *data)
>  	cursor_enable(data);
>  	for (i = 0, size = cursor_max_size; size >= 64; size /= 2, i++)
> {
>  		/* Change size in flight: */
> -		igt_plane_set_size(cursor, size, size);
> -		igt_fb_set_size(&data->fb, cursor, size, size);
> +		igt_plane_set_size(data->cursor, size, size);
> +		igt_fb_set_size(&data->fb, data->cursor, size, size);
>  		igt_display_commit(display);
>  		igt_wait_for_vblank(data->drm_fd, data->pipe);
>  		igt_pipe_crc_get_current(data->drm_fd, pipe_crc,
> &crc[i]);
> @@ -553,18 +623,18 @@ static void test_cursor_size(data_t *data)
>  	/* Software test loop */
>  	for (i = 0, size = cursor_max_size; size >= 64; size /= 2, i++)
> {
>  		/* Now render the same in software and collect crc */
> -		cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb);
> +		cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER]);
>  		igt_paint_color_alpha(cr, 0, 0, size, size, 1.0, 1.0,
> 1.0, 1.0);
> -		igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +		igt_put_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER], cr);
>  
>  		igt_display_commit(display);
>  		igt_wait_for_vblank(data->drm_fd, data->pipe);
>  		igt_pipe_crc_get_current(data->drm_fd, pipe_crc,
> &ref_crc);
>  		/* Clear screen afterwards */
> -		cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb);
> +		cr = igt_get_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER]);
>  		igt_paint_color(cr, 0, 0, data->screenw, data->screenh,
>  				0.0, 0.0, 0.0);
> -		igt_put_cairo_ctx(data->drm_fd, &data->primary_fb, cr);
> +		igt_put_cairo_ctx(data->drm_fd, &data-
> >primary_fb[FRONTBUFFER], cr);
>  		igt_assert_crc_equal(&crc[i], &ref_crc);
>  	}
>  }
> @@ -575,26 +645,24 @@ static void test_rapid_movement(data_t *data)
>  	int x = 0, y = 0;
>  	long usec;
>  	igt_display_t *display = &data->display;
> -	igt_plane_t *cursor =
> -		igt_output_get_plane_type(data->output,
> DRM_PLANE_TYPE_CURSOR);
>  
>  	cursor_enable(data);
>  
>  	gettimeofday(&start, NULL);
>  	for ( ; x < 100; x++) {
> -		igt_plane_set_position(cursor, x, y);
> +		igt_plane_set_position(data->cursor, x, y);
>  		igt_display_commit(display);
>  	}
>  	for ( ; y < 100; y++) {
> -		igt_plane_set_position(cursor, x, y);
> +		igt_plane_set_position(data->cursor, x, y);
>  		igt_display_commit(display);
>  	}
>  	for ( ; x > 0; x--) {
> -		igt_plane_set_position(cursor, x, y);
> +		igt_plane_set_position(data->cursor, x, y);
>  		igt_display_commit(display);
>  	}
>  	for ( ; y > 0; y--) {
> -		igt_plane_set_position(cursor, x, y);
> +		igt_plane_set_position(data->cursor, x, y);
>  		igt_display_commit(display);
>  	}
>  	gettimeofday(&end, NULL);
> @@ -736,6 +804,16 @@ igt_main
>  		igt_require_pipe_crc(data.drm_fd);
>  
>  		igt_display_require(&data.display, data.drm_fd);
> +
> +		if (is_i915_device(data.drm_fd)) {
> +			data.bufmgr =
> drm_intel_bufmgr_gem_init(data.drm_fd, 4096);
> +			igt_assert(data.bufmgr);
> +			drm_intel_bufmgr_gem_enable_reuse(data.bufmgr);
> +
> +			data.devid = intel_get_drm_devid(data.drm_fd);
> +			data.rendercopy =
> igt_get_render_copyfunc(data.devid);
> +		}
> +		igt_debug("Using %s for restoring test image\n",
> (data.rendercopy == NULL)?"Cairo":"rendercopy");
>  	}
>  
>  	data.cursor_max_w = cursor_width;
> @@ -746,6 +824,16 @@ igt_main
>  			run_tests_on_pipe(&data, pipe);
>  
>  	igt_fixture {
> +		if (data.pipe_crc != NULL) {
> +			igt_pipe_crc_stop(data.pipe_crc);
> +			igt_pipe_crc_free(data.pipe_crc);
> +		}
> +
> +		if (data.bufmgr != NULL) {
> +			intel_batchbuffer_free(data.batch);
> +			drm_intel_bufmgr_destroy(data.bufmgr);
> +		}
> +
>  		igt_display_fini(&data.display);
>  	}
>  }


More information about the igt-dev mailing list