diff mbox

drm/i915: Display WA #0827 for NV12 to RGB switch

Message ID 1327d62b-3083-8761-dbed-7ae40004d1fb@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Maarten Lankhorst Feb. 6, 2018, 2:02 p.m. UTC
Hey,

Op 06-02-18 om 12:06 schreef Vidya Srinivas:
> From: Chandra Konduru <chandra.konduru@intel.com>
>
> Display WA #0827:
> Switching the plane format from NV12 to RGB and leaving system idle results
> in display underrun and corruption. WA: Set the bit 15 & bit 19 to 1b
> in the CLKGATE_DIS_PSL register for the pipe in which NV12 plane is enabled.
>
> Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
> Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>

Is it required to leave the workaround enabled all the time? And how can I reproduce it? I tried to write a
dumb testcase (below) to expose this issue, but didn't have much luck..
---

Comments

Srinivas, Vidya Feb. 7, 2018, 2:27 a.m. UTC | #1
Hi Maarten

Sorry, my bad. This was a wrong push from my end. I have changed the tag to Not applicable.
Apologies.

Have sent out the NV12 series separately.

Regards
Vidya

> -----Original Message-----

> From: Maarten Lankhorst [mailto:maarten.lankhorst@linux.intel.com]

> Sent: Tuesday, February 6, 2018 7:33 PM

> To: Srinivas, Vidya <vidya.srinivas@intel.com>; intel-

> gfx@lists.freedesktop.org

> Cc: Kamath, Sunil <sunil.kamath@intel.com>; Sharma, Shashank

> <shashank.sharma@intel.com>; Shankar, Uma <uma.shankar@intel.com>;

> Konduru, Chandra <chandra.konduru@intel.com>

> Subject: Re: [PATCH] drm/i915: Display WA #0827 for NV12 to RGB switch

> 

> Hey,

> 

> Op 06-02-18 om 12:06 schreef Vidya Srinivas:

> > From: Chandra Konduru <chandra.konduru@intel.com>

> >

> > Display WA #0827:

> > Switching the plane format from NV12 to RGB and leaving system idle

> > results in display underrun and corruption. WA: Set the bit 15 & bit

> > 19 to 1b in the CLKGATE_DIS_PSL register for the pipe in which NV12 plane

> is enabled.

> >

> > Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>

> > Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>

> 

> Is it required to leave the workaround enabled all the time? And how can I

> reproduce it? I tried to write a dumb testcase (below) to expose this issue,

> but didn't have much luck..

> ---

> diff --git a/tests/Makefile.sources b/tests/Makefile.sources index

> 870c9093550b..f536db0fa433 100644

> --- a/tests/Makefile.sources

> +++ b/tests/Makefile.sources

> @@ -192,6 +192,7 @@ TESTS_progs = \

>  	kms_legacy_colorkey \

>  	kms_mmap_write_crc \

>  	kms_mmio_vs_cs_flip \

> +	kms_nv12 \

>  	kms_panel_fitting \

>  	kms_pipe_b_c_ivb \

>  	kms_pipe_crc_basic \

> diff --git a/tests/kms_nv12.c b/tests/kms_nv12.c new file mode 100644

> index 000000000000..384a15afde52

> --- /dev/null

> +++ b/tests/kms_nv12.c

> @@ -0,0 +1,195 @@

> +/*

> + * Permission is hereby granted, free of charge, to any person

> +obtaining a

> + * copy of this software and associated documentation files (the

> +"Software"),

> + * to deal in the Software without restriction, including without

> +limitation

> + * the rights to use, copy, modify, merge, publish, distribute,

> +sublicense,

> + * and/or sell copies of the Software, and to permit persons to whom

> +the

> + * Software is furnished to do so, subject to the following conditions:

> + *

> + * The above copyright notice and this permission notice shall be

> +included in

> + * all copies or substantial portions of the Software.

> + *

> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY

> KIND,

> +EXPRESS OR

> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

> +MERCHANTABILITY,

> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO

> EVENT

> +SHALL THE

> + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

> DAMAGES OR

> +OTHER

> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

> OTHERWISE,

> +ARISING

> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE

> OR OTHER

> +DEALINGS

> + * IN THE SOFTWARE.

> + *

> + * Authors:

> + *    Maarten Lankhorst

> + */

> +#include "config.h"

> +

> +#include "igt.h"

> +#include

> +#include

> +#include

> +#include

> +#include

> +

> +typedef struct {

> +	igt_display_t display;

> +

> +	igt_pipe_crc_t *pipe_crc;

> +	struct igt_fb fb[4];

> +} data_t;

> +

> +static bool plane_supports_format(igt_plane_t *plane, uint32_t format)

> +{

> +	int i;

> +

> +	if (!igt_fb_supported_format(format))

> +		return false;

> +

> +	for (i = 0; i < plane->drm_plane->count_formats; i++)

> +		if (plane->drm_plane->formats[i] == format)

> +			return true;

> +

> +	return false;

> +}

> +

> +static bool pipe_supports_format(igt_display_t *display, enum pipe

> +pipe, uint32_t format) {

> +	igt_plane_t *plane;

> +

> +	for_each_plane_on_pipe(display, pipe, plane)

> +		if (plane_supports_format(plane, format))

> +			return true;

> +

> +	return false;

> +}

> +

> +static void remove_fbs(data_t *data)

> +{

> +	int i;

> +

> +	for (i = 0; i < ARRAY_SIZE(data->fb); i++)

> +		igt_remove_fb(data->display.drm_fd, &data->fb[i]); }

> +

> +static void prepare_crtc(data_t *data, enum pipe pipe, igt_output_t

> +*output) {

> +	igt_display_t *display = &data->display;

> +

> +	remove_fbs(data);

> +	igt_display_reset(display);

> +	igt_output_set_pipe(output, pipe);

> +	igt_display_commit2(display, COMMIT_ATOMIC);

> +

> +	igt_pipe_crc_free(data->pipe_crc);

> +	data->pipe_crc = igt_pipe_crc_new(display->drm_fd, pipe,

> +INTEL_PIPE_CRC_SOURCE_AUTO); }

> +

> +static void set_fb(igt_plane_t *plane, struct igt_fb *fb) {

> +	igt_plane_set_fb(plane, fb);

> +

> +	if (fb && fb->tiling == LOCAL_I915_FORMAT_MOD_Y_TILED) {

> +		igt_plane_set_rotation(plane, IGT_ROTATION_90);

> +		igt_plane_set_size(plane, fb->height, fb->width);

> +	} else

> +		igt_plane_set_rotation(plane, IGT_ROTATION_0); }

> +

> +static void nv12_rgb_switch(data_t *data, enum pipe pipe, igt_output_t

> +*output) {

> +	drmModeModeInfo *mode = igt_output_get_mode(output);

> +	igt_display_t *display = &data->display;

> +	igt_plane_t *plane;

> +	int i;

> +	igt_crc_t ref_crc[4], crc;

> +

> +	prepare_crtc(data, pipe, output);

> +

> +	igt_create_pattern_fb(display->drm_fd, mode->hdisplay, mode-

> >vdisplay,

> +			      DRM_FORMAT_NV12,

> LOCAL_I915_FORMAT_MOD_X_TILED,

> +			      &data->fb[0]);

> +

> +  	igt_create_pattern_fb(display->drm_fd, mode->vdisplay, mode-

> >hdisplay,

> +			      DRM_FORMAT_NV12,

> LOCAL_I915_FORMAT_MOD_Y_TILED,

> +			      &data->fb[1]);

> +

> +	igt_create_pattern_fb(display->drm_fd, mode->hdisplay, mode-

> >vdisplay,

> +			      DRM_FORMAT_XRGB8888,

> LOCAL_I915_FORMAT_MOD_X_TILED,

> +			      &data->fb[2]);

> +

> +	igt_create_pattern_fb(display->drm_fd, mode->vdisplay, mode-

> >hdisplay,

> +			      DRM_FORMAT_XRGB8888,

> LOCAL_I915_FORMAT_MOD_Y_TILED,

> +			      &data->fb[3]);

> +

> +	for_each_plane_on_pipe(display, pipe, plane)

> +		if (plane->type != DRM_PLANE_TYPE_CURSOR)

> +			set_fb(plane, &data->fb[3]);

> +

> +	for_each_plane_on_pipe(display, pipe, plane) {

> +		const int seq[] = {

> +			2, 0, 2, 1, 3, 1, 3

> +		};

> +

> +		if (!plane_supports_format(plane, DRM_FORMAT_NV12))

> +			continue;

> +

> +		/* Collect reference crc with toggle in between. */

> +		for (i = 0; i < ARRAY_SIZE(ref_crc); i++) {

> +			set_fb(plane, &data->fb[i]);

> +			igt_display_commit2(display, COMMIT_ATOMIC);

> +

> +			igt_pipe_crc_collect_crc(data->pipe_crc,

> &ref_crc[i]);

> +

> +			set_fb(plane, NULL);

> +			igt_display_commit2(display, COMMIT_ATOMIC);

> +		}

> +

> +		for (i = 0; i < ARRAY_SIZE(seq); i++) {

> +			int j = seq[i];

> +

> +			set_fb(plane, &data->fb[j]);

> +			igt_display_commit2(display, COMMIT_ATOMIC);

> +

> +			igt_pipe_crc_collect_crc(data->pipe_crc, &crc);

> +			igt_assert_crc_equal(&ref_crc[j], &crc);

> +		}

> +	}

> +}

> +

> +static void run_tests_for_pipe(data_t *data, enum pipe pipe) {

> +	igt_output_t *output;

> +	igt_display_t *display = &data->display;

> +

> +	igt_fixture {

> +		igt_display_require_output_on_pipe(display, pipe);

> +		igt_require(pipe_supports_format(display, pipe,

> DRM_FORMAT_NV12));

> +	}

> +

> +	igt_subtest_f("pipe-%s-nv12-rgb-switch",

> kmstest_pipe_name(pipe))

> +		for_each_valid_output_on_pipe(display, pipe, output)

> +			nv12_rgb_switch(data, pipe, output); }

> +

> +igt_main

> +{

> +	data_t data = {};

> +	enum pipe pipe;

> +

> +	igt_skip_on_simulation();

> +

> +	igt_fixture {

> +		data.display.drm_fd =

> drm_open_driver_master(DRIVER_ANY);

> +

> +		kmstest_set_vt_graphics_mode();

> +		igt_display_init(&data.display, data.display.drm_fd);

> +		igt_require(data.display.is_atomic);

> +	}

> +

> +	for_each_pipe_static(pipe)

> +		igt_subtest_group

> +			run_tests_for_pipe(&data, pipe);

> +

> +	igt_fixture {

> +		igt_display_fini(&data.display);

> +		close(data.display.drm_fd);

> +	}

> +}

> diff --git a/tests/meson.build b/tests/meson.build index

> 521a4c425a68..cfcd476ccd10 100644

> --- a/tests/meson.build

> +++ b/tests/meson.build

> @@ -170,6 +170,7 @@ test_progs = [

>  	'kms_legacy_colorkey',

>  	'kms_mmap_write_crc',

>  	'kms_mmio_vs_cs_flip',

> +	'kms_nv12',

>  	'kms_panel_fitting',

>  	'kms_pipe_b_c_ivb',

>  	'kms_pipe_crc_basic',
diff mbox

Patch

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 870c9093550b..f536db0fa433 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -192,6 +192,7 @@  TESTS_progs = \
 	kms_legacy_colorkey \
 	kms_mmap_write_crc \
 	kms_mmio_vs_cs_flip \
+	kms_nv12 \
 	kms_panel_fitting \
 	kms_pipe_b_c_ivb \
 	kms_pipe_crc_basic \
diff --git a/tests/kms_nv12.c b/tests/kms_nv12.c
new file mode 100644
index 000000000000..384a15afde52
--- /dev/null
+++ b/tests/kms_nv12.c
@@ -0,0 +1,195 @@ 
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Maarten Lankhorst 
+ */
+#include "config.h"
+
+#include "igt.h"
+#include 
+#include 
+#include 
+#include 
+#include 
+
+typedef struct {
+	igt_display_t display;
+
+	igt_pipe_crc_t *pipe_crc;
+	struct igt_fb fb[4];
+} data_t;
+
+static bool plane_supports_format(igt_plane_t *plane, uint32_t format)
+{
+	int i;
+
+	if (!igt_fb_supported_format(format))
+		return false;
+
+	for (i = 0; i < plane->drm_plane->count_formats; i++)
+		if (plane->drm_plane->formats[i] == format)
+			return true;
+
+	return false;
+}
+
+static bool pipe_supports_format(igt_display_t *display, enum pipe pipe, uint32_t format)
+{
+	igt_plane_t *plane;
+
+	for_each_plane_on_pipe(display, pipe, plane)
+		if (plane_supports_format(plane, format))
+			return true;
+
+	return false;
+}
+
+static void remove_fbs(data_t *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(data->fb); i++)
+		igt_remove_fb(data->display.drm_fd, &data->fb[i]);
+}
+
+static void prepare_crtc(data_t *data, enum pipe pipe, igt_output_t *output)
+{
+	igt_display_t *display = &data->display;
+
+	remove_fbs(data);
+	igt_display_reset(display);
+	igt_output_set_pipe(output, pipe);
+	igt_display_commit2(display, COMMIT_ATOMIC);
+
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = igt_pipe_crc_new(display->drm_fd, pipe, INTEL_PIPE_CRC_SOURCE_AUTO);
+}
+
+static void set_fb(igt_plane_t *plane, struct igt_fb *fb)
+{
+	igt_plane_set_fb(plane, fb);
+
+	if (fb && fb->tiling == LOCAL_I915_FORMAT_MOD_Y_TILED) {
+		igt_plane_set_rotation(plane, IGT_ROTATION_90);
+		igt_plane_set_size(plane, fb->height, fb->width);
+	} else
+		igt_plane_set_rotation(plane, IGT_ROTATION_0);
+}
+
+static void nv12_rgb_switch(data_t *data, enum pipe pipe, igt_output_t *output)
+{
+	drmModeModeInfo *mode = igt_output_get_mode(output);
+	igt_display_t *display = &data->display;
+	igt_plane_t *plane;
+	int i;
+	igt_crc_t ref_crc[4], crc;
+
+	prepare_crtc(data, pipe, output);
+
+	igt_create_pattern_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+			      DRM_FORMAT_NV12, LOCAL_I915_FORMAT_MOD_X_TILED,
+			      &data->fb[0]);
+
+  	igt_create_pattern_fb(display->drm_fd, mode->vdisplay, mode->hdisplay,
+			      DRM_FORMAT_NV12, LOCAL_I915_FORMAT_MOD_Y_TILED,
+			      &data->fb[1]);
+
+	igt_create_pattern_fb(display->drm_fd, mode->hdisplay, mode->vdisplay,
+			      DRM_FORMAT_XRGB8888, LOCAL_I915_FORMAT_MOD_X_TILED,
+			      &data->fb[2]);
+
+	igt_create_pattern_fb(display->drm_fd, mode->vdisplay, mode->hdisplay,
+			      DRM_FORMAT_XRGB8888, LOCAL_I915_FORMAT_MOD_Y_TILED,
+			      &data->fb[3]);
+
+	for_each_plane_on_pipe(display, pipe, plane)
+		if (plane->type != DRM_PLANE_TYPE_CURSOR)
+			set_fb(plane, &data->fb[3]);
+
+	for_each_plane_on_pipe(display, pipe, plane) {
+		const int seq[] = {
+			2, 0, 2, 1, 3, 1, 3
+		};
+
+		if (!plane_supports_format(plane, DRM_FORMAT_NV12))
+			continue;
+
+		/* Collect reference crc with toggle in between. */
+		for (i = 0; i < ARRAY_SIZE(ref_crc); i++) {
+			set_fb(plane, &data->fb[i]);
+			igt_display_commit2(display, COMMIT_ATOMIC);
+
+			igt_pipe_crc_collect_crc(data->pipe_crc, &ref_crc[i]);
+
+			set_fb(plane, NULL);
+			igt_display_commit2(display, COMMIT_ATOMIC);
+		}
+
+		for (i = 0; i < ARRAY_SIZE(seq); i++) {
+			int j = seq[i];
+
+			set_fb(plane, &data->fb[j]);
+			igt_display_commit2(display, COMMIT_ATOMIC);
+
+			igt_pipe_crc_collect_crc(data->pipe_crc, &crc);
+			igt_assert_crc_equal(&ref_crc[j], &crc);
+		}
+	}
+}
+
+static void run_tests_for_pipe(data_t *data, enum pipe pipe)
+{
+	igt_output_t *output;
+	igt_display_t *display = &data->display;
+
+	igt_fixture {
+		igt_display_require_output_on_pipe(display, pipe);
+		igt_require(pipe_supports_format(display, pipe, DRM_FORMAT_NV12));
+	}
+
+	igt_subtest_f("pipe-%s-nv12-rgb-switch", kmstest_pipe_name(pipe))
+		for_each_valid_output_on_pipe(display, pipe, output)
+			nv12_rgb_switch(data, pipe, output);
+}
+
+igt_main
+{
+	data_t data = {};
+	enum pipe pipe;
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		data.display.drm_fd = drm_open_driver_master(DRIVER_ANY);
+
+		kmstest_set_vt_graphics_mode();
+		igt_display_init(&data.display, data.display.drm_fd);
+		igt_require(data.display.is_atomic);
+	}
+
+	for_each_pipe_static(pipe)
+		igt_subtest_group
+			run_tests_for_pipe(&data, pipe);
+
+	igt_fixture {
+		igt_display_fini(&data.display);
+		close(data.display.drm_fd);
+	}
+}
diff --git a/tests/meson.build b/tests/meson.build
index 521a4c425a68..cfcd476ccd10 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -170,6 +170,7 @@  test_progs = [
 	'kms_legacy_colorkey',
 	'kms_mmap_write_crc',
 	'kms_mmio_vs_cs_flip',
+	'kms_nv12',
 	'kms_panel_fitting',
 	'kms_pipe_b_c_ivb',
 	'kms_pipe_crc_basic',