[PATCH i-g-t 0/5] DC states igt tests patch series v7

[PATCH i-g-t 0/5] DC states igt tests patch series v7

[Anshuman Gupta]

This patch series adds new tests to validate Display C states.
DC states like DC5 and DC6 are validated during PSR entry/exit
and during DPMS on/off cycle.
Sending new revision of patch series after addressing review comments and
other relevant changes.
 
1. Changing the name of test from pm_dc to i915_pm_dc alinged to other PM tests.
2. Changing the DC5/6 counter check timeout from 1 sec to 3 sec,
   as in case of PSR  it requires more than 2 second to disable DC
   power wells after vblank event.

Jyoti Yadav (5):
  lib/igt_pm: igt lib helper routines to support DC5/6 tests
  tests/pm_dc: Added new test to verify Display C States
  tests/pm_dc: Added test for DC6 during PSR
  tests/pm_dc: Added test for DC5 during DPMS
  tests/pm_dc: Added test for DC6 during DPMS

 lib/igt_pm.c             |  47 +++++++++
 lib/igt_pm.h             |   2 +
 tests/Makefile.sources   |   3 +
 tests/i915/i915_pm_dc.c  | 255 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/i915/i915_pm_rpm.c |  17 +---
 tests/meson.build        |   1 +
 6 files changed, 309 insertions(+), 16 deletions(-)
 create mode 100644 tests/i915/i915_pm_dc.c

-- 
2.7.4

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[igt-dev] [PATCH i-g-t 0/5] DC states igt tests patch series v7

[Anshuman Gupta]

This patch series adds new tests to validate Display C states.
DC states like DC5 and DC6 are validated during PSR entry/exit
and during DPMS on/off cycle.
Sending new revision of patch series after addressing review comments and
other relevant changes.
 
1. Changing the name of test from pm_dc to i915_pm_dc alinged to other PM tests.
2. Changing the DC5/6 counter check timeout from 1 sec to 3 sec,
   as in case of PSR  it requires more than 2 second to disable DC
   power wells after vblank event.

Jyoti Yadav (5):
  lib/igt_pm: igt lib helper routines to support DC5/6 tests
  tests/pm_dc: Added new test to verify Display C States
  tests/pm_dc: Added test for DC6 during PSR
  tests/pm_dc: Added test for DC5 during DPMS
  tests/pm_dc: Added test for DC6 during DPMS

 lib/igt_pm.c             |  47 +++++++++
 lib/igt_pm.h             |   2 +
 tests/Makefile.sources   |   3 +
 tests/i915/i915_pm_dc.c  | 255 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/i915/i915_pm_rpm.c |  17 +---
 tests/meson.build        |   1 +
 6 files changed, 309 insertions(+), 16 deletions(-)
 create mode 100644 tests/i915/i915_pm_dc.c

-- 
2.7.4

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[PATCH i-g-t 1/5] lib/igt_pm: igt lib helper routines to support DC5/6 tests

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

It will be used by new test pm_dc.c which will validate Display C States.
So moving the same to igt_pm library.

v2: Simplify the comment section.
v3: Remove . from the subject line.
v4: Rebased, resolve conflicts in pm_rpm.c
    Included patch set version change log.
v5: Listing actual change in patch set changelog to make review easier.
v6: igt's lib added support for disabling runtime suspend, change in commit log.
    rebased due to test name pm_rpm changed to i915_pm_rpm.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 lib/igt_pm.c             | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 lib/igt_pm.h             |  2 ++
 tests/i915/i915_pm_rpm.c | 17 +----------------
 3 files changed, 50 insertions(+), 16 deletions(-)

diff --git a/lib/igt_pm.c b/lib/igt_pm.c
index 4902723..0ed566f 100644
--- a/lib/igt_pm.c
+++ b/lib/igt_pm.c
@@ -38,6 +38,7 @@
 #include "drmtest.h"
 #include "igt_pm.h"
 #include "igt_aux.h"
+#include "igt_sysfs.h"
 
 /**
  * SECTION:igt_pm
@@ -486,6 +487,7 @@ void igt_restore_runtime_pm(void)
 	igt_pm_audio_restore_runtime_pm();
 }
 
+
 static void __igt_pm_runtime_exit_handler(int sig)
 {
 	__igt_restore_runtime_pm();
@@ -577,6 +579,24 @@ bool igt_setup_runtime_pm(void)
 	return true;
 }
 
+bool igt_disable_runtime_pm(void)
+{
+	int fd;
+	ssize_t size;
+	char buf[6];
+
+	/* We know we support runtime PM, let's try to disable it now. */
+	fd = open(POWER_DIR "/control", O_RDWR);
+	igt_assert_f(fd >= 0, "Can't open " POWER_DIR "/control\n");
+	size = write(fd, "on\n", 3);
+	igt_assert(size == 3);
+	lseek(fd, 0, SEEK_SET);
+	size = read(fd, buf, ARRAY_SIZE(buf));
+	igt_assert(size == 3);
+	igt_assert(strncmp(buf, "on\n", 3) == 0);
+	close(fd);
+	return true;
+}
 /**
  * igt_get_runtime_pm_status:
  *
@@ -620,3 +640,30 @@ bool igt_wait_for_pm_status(enum igt_runtime_pm_status status)
 {
 	return igt_wait(igt_get_runtime_pm_status() == status, 10000, 100);
 }
+
+/**
+ * dmc_loaded:
+ * @debugfs: fd to the debugfs dir.
+
+ * Check whether DMC FW is loaded or not. DMC FW is require for few Display C
+ * states like DC5 and DC6. FW does the Context Save and Restore during Display
+ * C States entry and exit.
+ *
+ * Returns:
+ * True if DMC FW is loaded otherwise false.
+ */
+bool igt_pm_dmc_loaded(int debugfs)
+{
+	igt_require(debugfs != -1);
+	char buf[15];
+	int len;
+
+	len = igt_sysfs_read(debugfs, "i915_dmc_info", buf, sizeof(buf) - 1);
+	if (len < 0)
+		return true; /* no CSR support, no DMC requirement */
+
+	buf[len] = '\0';
+
+	igt_info("DMC: %s\n", buf);
+	return strstr(buf, "fw loaded: yes");
+}
diff --git a/lib/igt_pm.h b/lib/igt_pm.h
index 10cc679..6c4617a 100644
--- a/lib/igt_pm.h
+++ b/lib/igt_pm.h
@@ -47,8 +47,10 @@ enum igt_runtime_pm_status {
 };
 
 bool igt_setup_runtime_pm(void);
+bool igt_disable_runtime_pm(void);
 void igt_restore_runtime_pm(void);
 enum igt_runtime_pm_status igt_get_runtime_pm_status(void);
 bool igt_wait_for_pm_status(enum igt_runtime_pm_status status);
+bool igt_pm_dmc_loaded(int debugfs);
 
 #endif /* IGT_PM_H */
diff --git a/tests/i915/i915_pm_rpm.c b/tests/i915/i915_pm_rpm.c
index be296f5..2d7cb5e 100644
--- a/tests/i915/i915_pm_rpm.c
+++ b/tests/i915/i915_pm_rpm.c
@@ -710,21 +710,6 @@ static void setup_pc8(void)
 	has_pc8 = true;
 }
 
-static bool dmc_loaded(void)
-{
-	char buf[15];
-	int len;
-
-	len = igt_sysfs_read(debugfs, "i915_dmc_info", buf, sizeof(buf) - 1);
-	if (len < 0)
-	    return true; /* no CSR support, no DMC requirement */
-
-	buf[len] = '\0';
-
-	igt_info("DMC: %s\n", buf);
-	return strstr(buf, "fw loaded: yes");
-}
-
 static void dump_file(int dir, const char *filename)
 {
 	char *contents;
@@ -761,7 +746,7 @@ static bool setup_environment(void)
 	igt_info("Runtime PM support: %d\n", has_runtime_pm);
 	igt_info("PC8 residency support: %d\n", has_pc8);
 	igt_require(has_runtime_pm);
-	igt_require(dmc_loaded());
+	igt_require(igt_pm_dmc_loaded(debugfs));
 
 out:
 	disable_all_screens(&ms_data);
-- 
2.7.4

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[igt-dev] [PATCH i-g-t 1/5] lib/igt_pm: igt lib helper routines to support DC5/6 tests

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

It will be used by new test pm_dc.c which will validate Display C States.
So moving the same to igt_pm library.

v2: Simplify the comment section.
v3: Remove . from the subject line.
v4: Rebased, resolve conflicts in pm_rpm.c
    Included patch set version change log.
v5: Listing actual change in patch set changelog to make review easier.
v6: igt's lib added support for disabling runtime suspend, change in commit log.
    rebased due to test name pm_rpm changed to i915_pm_rpm.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 lib/igt_pm.c             | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 lib/igt_pm.h             |  2 ++
 tests/i915/i915_pm_rpm.c | 17 +----------------
 3 files changed, 50 insertions(+), 16 deletions(-)

diff --git a/lib/igt_pm.c b/lib/igt_pm.c
index 4902723..0ed566f 100644
--- a/lib/igt_pm.c
+++ b/lib/igt_pm.c
@@ -38,6 +38,7 @@
 #include "drmtest.h"
 #include "igt_pm.h"
 #include "igt_aux.h"
+#include "igt_sysfs.h"
 
 /**
  * SECTION:igt_pm
@@ -486,6 +487,7 @@ void igt_restore_runtime_pm(void)
 	igt_pm_audio_restore_runtime_pm();
 }
 
+
 static void __igt_pm_runtime_exit_handler(int sig)
 {
 	__igt_restore_runtime_pm();
@@ -577,6 +579,24 @@ bool igt_setup_runtime_pm(void)
 	return true;
 }
 
+bool igt_disable_runtime_pm(void)
+{
+	int fd;
+	ssize_t size;
+	char buf[6];
+
+	/* We know we support runtime PM, let's try to disable it now. */
+	fd = open(POWER_DIR "/control", O_RDWR);
+	igt_assert_f(fd >= 0, "Can't open " POWER_DIR "/control\n");
+	size = write(fd, "on\n", 3);
+	igt_assert(size == 3);
+	lseek(fd, 0, SEEK_SET);
+	size = read(fd, buf, ARRAY_SIZE(buf));
+	igt_assert(size == 3);
+	igt_assert(strncmp(buf, "on\n", 3) == 0);
+	close(fd);
+	return true;
+}
 /**
  * igt_get_runtime_pm_status:
  *
@@ -620,3 +640,30 @@ bool igt_wait_for_pm_status(enum igt_runtime_pm_status status)
 {
 	return igt_wait(igt_get_runtime_pm_status() == status, 10000, 100);
 }
+
+/**
+ * dmc_loaded:
+ * @debugfs: fd to the debugfs dir.
+
+ * Check whether DMC FW is loaded or not. DMC FW is require for few Display C
+ * states like DC5 and DC6. FW does the Context Save and Restore during Display
+ * C States entry and exit.
+ *
+ * Returns:
+ * True if DMC FW is loaded otherwise false.
+ */
+bool igt_pm_dmc_loaded(int debugfs)
+{
+	igt_require(debugfs != -1);
+	char buf[15];
+	int len;
+
+	len = igt_sysfs_read(debugfs, "i915_dmc_info", buf, sizeof(buf) - 1);
+	if (len < 0)
+		return true; /* no CSR support, no DMC requirement */
+
+	buf[len] = '\0';
+
+	igt_info("DMC: %s\n", buf);
+	return strstr(buf, "fw loaded: yes");
+}
diff --git a/lib/igt_pm.h b/lib/igt_pm.h
index 10cc679..6c4617a 100644
--- a/lib/igt_pm.h
+++ b/lib/igt_pm.h
@@ -47,8 +47,10 @@ enum igt_runtime_pm_status {
 };
 
 bool igt_setup_runtime_pm(void);
+bool igt_disable_runtime_pm(void);
 void igt_restore_runtime_pm(void);
 enum igt_runtime_pm_status igt_get_runtime_pm_status(void);
 bool igt_wait_for_pm_status(enum igt_runtime_pm_status status);
+bool igt_pm_dmc_loaded(int debugfs);
 
 #endif /* IGT_PM_H */
diff --git a/tests/i915/i915_pm_rpm.c b/tests/i915/i915_pm_rpm.c
index be296f5..2d7cb5e 100644
--- a/tests/i915/i915_pm_rpm.c
+++ b/tests/i915/i915_pm_rpm.c
@@ -710,21 +710,6 @@ static void setup_pc8(void)
 	has_pc8 = true;
 }
 
-static bool dmc_loaded(void)
-{
-	char buf[15];
-	int len;
-
-	len = igt_sysfs_read(debugfs, "i915_dmc_info", buf, sizeof(buf) - 1);
-	if (len < 0)
-	    return true; /* no CSR support, no DMC requirement */
-
-	buf[len] = '\0';
-
-	igt_info("DMC: %s\n", buf);
-	return strstr(buf, "fw loaded: yes");
-}
-
 static void dump_file(int dir, const char *filename)
 {
 	char *contents;
@@ -761,7 +746,7 @@ static bool setup_environment(void)
 	igt_info("Runtime PM support: %d\n", has_runtime_pm);
 	igt_info("PC8 residency support: %d\n", has_pc8);
 	igt_require(has_runtime_pm);
-	igt_require(dmc_loaded());
+	igt_require(igt_pm_dmc_loaded(debugfs));
 
 out:
 	disable_all_screens(&ms_data);
-- 
2.7.4

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[PATCH i-g-t 2/5] tests/pm_dc: Added new test to verify Display C States

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Currently this test validates DC5 upon PSR entry for supported platforms.
Added new file for compilation inside Makefile and Meson.

v2: Used the debugfs entry for DC counters instead of Registers.
    Used shorter names for variables.
    Introduced timeout to read DC counters.
v3: one second timeout is introduced to read DC counters.
    Skip the subtest if counters are not available for that platform.
v4: Rebased, to fix compilation error in psr_enable(), psr_wait_entry()
    and replaced igt_display_init() by igt_display_require() in pm_rpm.c.
    Addressed the review comment by removing unused function display_init,
    removing redundant igt commit suggested by Imre.
    Fixed typo in read_dc_counter().
v5: Addressed the review comment by removing redundant read_dc_counter(),
    clubbed cleanup() function in test_dc_state_psr() suggested by Imre.
    Rearranged  preprocessor directives at one place.
    Fixed compilation warning by adding function prototype for
    dc_state_wait_entry() and check_dc_counter().
    Listing actual change in patch set changelog to make review easier.
v6: Fixed "i915_edp_psr_status" string to "Sink support: yes".
v7: Rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests, changed the DC5/6 counter check timeout to 3 second.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/Makefile.sources  |   3 +
 tests/i915/i915_pm_dc.c | 209 ++++++++++++++++++++++++++++++++++++++++++++++++
 tests/meson.build       |   1 +
 3 files changed, 213 insertions(+)
 create mode 100644 tests/i915/i915_pm_dc.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 71ccf00..5d6c449 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -492,6 +492,9 @@ i915_pm_rc6_residency_SOURCES = i915/i915_pm_rc6_residency.c
 TESTS_progs += i915_pm_rpm
 i915_pm_rpm_SOURCES = i915/i915_pm_rpm.c
 
+TESTS_progs += i915_pm_dc
+i915_pm_dc_SOURCES = i915/i915_pm_dc.c
+
 TESTS_progs += i915_pm_rps
 i915_pm_rps_SOURCES = i915/i915_pm_rps.c
 
diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
new file mode 100644
index 0000000..3bb8083
--- /dev/null
+++ b/tests/i915/i915_pm_dc.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ */
+
+#include "igt.h"
+#include "igt_sysfs.h"
+#include "igt_psr.h"
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include "intel_bufmgr.h"
+#include "intel_io.h"
+#include "limits.h"
+
+/* DC State Flags */
+#define CHECK_DC5	1
+#define CHECK_DC6	2
+
+typedef struct {
+	int drm_fd;
+	int debugfs_fd;
+	uint32_t devid;
+	igt_display_t display;
+	struct igt_fb fb_white;
+	enum psr_mode op_psr_mode;
+	drmModeModeInfo *mode;
+	igt_output_t *output;
+} data_t;
+
+bool dc_state_wait_entry(int, int, int);
+void check_dc_counter(int, int, uint32_t);
+
+static void setup_output(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	enum pipe pipe;
+
+	for_each_pipe_with_valid_output(display, pipe, output) {
+		drmModeConnectorPtr c = output->config.connector;
+
+		if (c->connector_type != DRM_MODE_CONNECTOR_eDP)
+			continue;
+
+		igt_output_set_pipe(output, pipe);
+		data->output = output;
+		data->mode = igt_output_get_mode(output);
+
+		return;
+	}
+}
+
+static void display_fini(data_t *data)
+{
+	igt_display_fini(&data->display);
+}
+
+static bool edp_psr_sink_support(data_t *data)
+{
+	char buf[512];
+
+	igt_debugfs_simple_read(data->debugfs_fd, "i915_edp_psr_status",
+			 buf, sizeof(buf));
+
+	return strstr(buf, "Sink support: yes");
+}
+
+static void cleanup(data_t *data)
+{
+	igt_plane_t *primary;
+
+	primary = igt_output_get_plane_type(data->output,
+					    DRM_PLANE_TYPE_PRIMARY);
+	igt_plane_set_fb(primary, NULL);
+	igt_display_commit(&data->display);
+	igt_remove_fb(data->drm_fd, &data->fb_white);
+}
+
+static void setup_primary(data_t *data)
+{
+	igt_plane_t *primary;
+
+	primary = igt_output_get_plane_type(data->output,
+					    DRM_PLANE_TYPE_PRIMARY);
+	igt_plane_set_fb(primary, NULL);
+	igt_create_color_fb(data->drm_fd,
+			    data->mode->hdisplay, data->mode->vdisplay,
+			    DRM_FORMAT_XRGB8888,
+			    LOCAL_I915_FORMAT_MOD_X_TILED,
+			    1.0, 1.0, 1.0,
+			    &data->fb_white);
+	igt_plane_set_fb(primary, &data->fb_white);
+	igt_display_commit(&data->display);
+}
+
+static uint32_t get_dc_counter(char *dc_data)
+{
+	char *e;
+	long ret;
+	char *s = strchr(dc_data, ':');
+
+	assert(s);
+	s++;
+	ret = strtol(s, &e, 10);
+	assert(((ret != LONG_MIN && ret != LONG_MAX) || errno != ERANGE) &&
+	       e > s && *e == '\n' && ret >= 0);
+	return ret;
+}
+
+static uint32_t read_dc_counter(uint32_t drm_fd, int dc_flag)
+{
+	char buf[4096];
+	char *str;
+
+	igt_debugfs_read(drm_fd, "i915_dmc_info", buf);
+
+	if (dc_flag & CHECK_DC5)
+		str = strstr(buf, "DC3 -> DC5 count");
+
+	else if (dc_flag & CHECK_DC6)
+		str = strstr(buf, "DC5 -> DC6 count");
+
+	/* Check DC5/DC6 counter is available for the platform.
+	 * Skip the test if counter is not available.
+	 */
+	igt_skip_on_f(str == NULL, "DC%d counter is not available\n",
+		      dc_flag & CHECK_DC5 ? 5 : 6);
+	return get_dc_counter(str);
+}
+
+bool dc_state_wait_entry(int drm_fd, int dc_flag, int prev_dc_count)
+{
+	return igt_wait(read_dc_counter(drm_fd, dc_flag) > prev_dc_count, 3000, 100);
+}
+
+void check_dc_counter(int drm_fd, int dc_flag, uint32_t prev_dc_count)
+{
+	igt_assert_f(dc_state_wait_entry(drm_fd, dc_flag, prev_dc_count),
+		     "DC%d state is not achieved\n",
+		     dc_flag & CHECK_DC5 ? 5 : 6);
+}
+
+static void test_dc_state_psr(data_t *data, int dc_flag)
+{
+	uint32_t dc_counter_before_psr;
+
+	dc_counter_before_psr = read_dc_counter(data->drm_fd, dc_flag);
+	setup_output(data);
+	setup_primary(data);
+	igt_assert(psr_wait_entry(data->debugfs_fd, data->op_psr_mode));
+	check_dc_counter(data->drm_fd, dc_flag, dc_counter_before_psr);
+	cleanup(data);
+}
+
+int main(int argc, char *argv[])
+{
+	bool has_runtime_pm;
+	data_t data = {};
+
+	igt_skip_on_simulation();
+	igt_subtest_init(argc, argv);
+	igt_fixture {
+		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		data.debugfs_fd = igt_debugfs_dir(data.drm_fd);
+		igt_require(data.debugfs_fd != -1);
+		kmstest_set_vt_graphics_mode();
+		data.devid = intel_get_drm_devid(data.drm_fd);
+		has_runtime_pm = igt_setup_runtime_pm();
+		igt_info("Runtime PM support: %d\n", has_runtime_pm);
+		igt_require(has_runtime_pm);
+		igt_require(igt_pm_dmc_loaded(data.debugfs_fd));
+		igt_display_require(&data.display, data.drm_fd);
+	}
+
+	igt_subtest("dc5-psr") {
+		data.op_psr_mode = PSR_MODE_1;
+		psr_enable(data.debugfs_fd, data.op_psr_mode);
+		igt_require_f(edp_psr_sink_support(&data),
+			      "Sink does not support PSR\n");
+		test_dc_state_psr(&data, CHECK_DC5);
+	}
+	igt_fixture {
+		close(data.debugfs_fd);
+		display_fini(&data);
+	}
+
+	igt_exit();
+}
diff --git a/tests/meson.build b/tests/meson.build
index 9015f80..9437fad 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -221,6 +221,7 @@ i915_progs = [
 	'i915_pm_lpsp',
 	'i915_pm_rc6_residency',
 	'i915_pm_rpm',
+	'i915_pm_dc',
 	'i915_pm_rps',
 	'i915_pm_sseu',
 	'i915_query',
-- 
2.7.4

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[igt-dev] [PATCH i-g-t 2/5] tests/pm_dc: Added new test to verify Display C States

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Currently this test validates DC5 upon PSR entry for supported platforms.
Added new file for compilation inside Makefile and Meson.

v2: Used the debugfs entry for DC counters instead of Registers.
    Used shorter names for variables.
    Introduced timeout to read DC counters.
v3: one second timeout is introduced to read DC counters.
    Skip the subtest if counters are not available for that platform.
v4: Rebased, to fix compilation error in psr_enable(), psr_wait_entry()
    and replaced igt_display_init() by igt_display_require() in pm_rpm.c.
    Addressed the review comment by removing unused function display_init,
    removing redundant igt commit suggested by Imre.
    Fixed typo in read_dc_counter().
v5: Addressed the review comment by removing redundant read_dc_counter(),
    clubbed cleanup() function in test_dc_state_psr() suggested by Imre.
    Rearranged  preprocessor directives at one place.
    Fixed compilation warning by adding function prototype for
    dc_state_wait_entry() and check_dc_counter().
    Listing actual change in patch set changelog to make review easier.
v6: Fixed "i915_edp_psr_status" string to "Sink support: yes".
v7: Rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests, changed the DC5/6 counter check timeout to 3 second.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/Makefile.sources  |   3 +
 tests/i915/i915_pm_dc.c | 209 ++++++++++++++++++++++++++++++++++++++++++++++++
 tests/meson.build       |   1 +
 3 files changed, 213 insertions(+)
 create mode 100644 tests/i915/i915_pm_dc.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 71ccf00..5d6c449 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -492,6 +492,9 @@ i915_pm_rc6_residency_SOURCES = i915/i915_pm_rc6_residency.c
 TESTS_progs += i915_pm_rpm
 i915_pm_rpm_SOURCES = i915/i915_pm_rpm.c
 
+TESTS_progs += i915_pm_dc
+i915_pm_dc_SOURCES = i915/i915_pm_dc.c
+
 TESTS_progs += i915_pm_rps
 i915_pm_rps_SOURCES = i915/i915_pm_rps.c
 
diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
new file mode 100644
index 0000000..3bb8083
--- /dev/null
+++ b/tests/i915/i915_pm_dc.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ */
+
+#include "igt.h"
+#include "igt_sysfs.h"
+#include "igt_psr.h"
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include "intel_bufmgr.h"
+#include "intel_io.h"
+#include "limits.h"
+
+/* DC State Flags */
+#define CHECK_DC5	1
+#define CHECK_DC6	2
+
+typedef struct {
+	int drm_fd;
+	int debugfs_fd;
+	uint32_t devid;
+	igt_display_t display;
+	struct igt_fb fb_white;
+	enum psr_mode op_psr_mode;
+	drmModeModeInfo *mode;
+	igt_output_t *output;
+} data_t;
+
+bool dc_state_wait_entry(int, int, int);
+void check_dc_counter(int, int, uint32_t);
+
+static void setup_output(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	enum pipe pipe;
+
+	for_each_pipe_with_valid_output(display, pipe, output) {
+		drmModeConnectorPtr c = output->config.connector;
+
+		if (c->connector_type != DRM_MODE_CONNECTOR_eDP)
+			continue;
+
+		igt_output_set_pipe(output, pipe);
+		data->output = output;
+		data->mode = igt_output_get_mode(output);
+
+		return;
+	}
+}
+
+static void display_fini(data_t *data)
+{
+	igt_display_fini(&data->display);
+}
+
+static bool edp_psr_sink_support(data_t *data)
+{
+	char buf[512];
+
+	igt_debugfs_simple_read(data->debugfs_fd, "i915_edp_psr_status",
+			 buf, sizeof(buf));
+
+	return strstr(buf, "Sink support: yes");
+}
+
+static void cleanup(data_t *data)
+{
+	igt_plane_t *primary;
+
+	primary = igt_output_get_plane_type(data->output,
+					    DRM_PLANE_TYPE_PRIMARY);
+	igt_plane_set_fb(primary, NULL);
+	igt_display_commit(&data->display);
+	igt_remove_fb(data->drm_fd, &data->fb_white);
+}
+
+static void setup_primary(data_t *data)
+{
+	igt_plane_t *primary;
+
+	primary = igt_output_get_plane_type(data->output,
+					    DRM_PLANE_TYPE_PRIMARY);
+	igt_plane_set_fb(primary, NULL);
+	igt_create_color_fb(data->drm_fd,
+			    data->mode->hdisplay, data->mode->vdisplay,
+			    DRM_FORMAT_XRGB8888,
+			    LOCAL_I915_FORMAT_MOD_X_TILED,
+			    1.0, 1.0, 1.0,
+			    &data->fb_white);
+	igt_plane_set_fb(primary, &data->fb_white);
+	igt_display_commit(&data->display);
+}
+
+static uint32_t get_dc_counter(char *dc_data)
+{
+	char *e;
+	long ret;
+	char *s = strchr(dc_data, ':');
+
+	assert(s);
+	s++;
+	ret = strtol(s, &e, 10);
+	assert(((ret != LONG_MIN && ret != LONG_MAX) || errno != ERANGE) &&
+	       e > s && *e == '\n' && ret >= 0);
+	return ret;
+}
+
+static uint32_t read_dc_counter(uint32_t drm_fd, int dc_flag)
+{
+	char buf[4096];
+	char *str;
+
+	igt_debugfs_read(drm_fd, "i915_dmc_info", buf);
+
+	if (dc_flag & CHECK_DC5)
+		str = strstr(buf, "DC3 -> DC5 count");
+
+	else if (dc_flag & CHECK_DC6)
+		str = strstr(buf, "DC5 -> DC6 count");
+
+	/* Check DC5/DC6 counter is available for the platform.
+	 * Skip the test if counter is not available.
+	 */
+	igt_skip_on_f(str == NULL, "DC%d counter is not available\n",
+		      dc_flag & CHECK_DC5 ? 5 : 6);
+	return get_dc_counter(str);
+}
+
+bool dc_state_wait_entry(int drm_fd, int dc_flag, int prev_dc_count)
+{
+	return igt_wait(read_dc_counter(drm_fd, dc_flag) > prev_dc_count, 3000, 100);
+}
+
+void check_dc_counter(int drm_fd, int dc_flag, uint32_t prev_dc_count)
+{
+	igt_assert_f(dc_state_wait_entry(drm_fd, dc_flag, prev_dc_count),
+		     "DC%d state is not achieved\n",
+		     dc_flag & CHECK_DC5 ? 5 : 6);
+}
+
+static void test_dc_state_psr(data_t *data, int dc_flag)
+{
+	uint32_t dc_counter_before_psr;
+
+	dc_counter_before_psr = read_dc_counter(data->drm_fd, dc_flag);
+	setup_output(data);
+	setup_primary(data);
+	igt_assert(psr_wait_entry(data->debugfs_fd, data->op_psr_mode));
+	check_dc_counter(data->drm_fd, dc_flag, dc_counter_before_psr);
+	cleanup(data);
+}
+
+int main(int argc, char *argv[])
+{
+	bool has_runtime_pm;
+	data_t data = {};
+
+	igt_skip_on_simulation();
+	igt_subtest_init(argc, argv);
+	igt_fixture {
+		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		data.debugfs_fd = igt_debugfs_dir(data.drm_fd);
+		igt_require(data.debugfs_fd != -1);
+		kmstest_set_vt_graphics_mode();
+		data.devid = intel_get_drm_devid(data.drm_fd);
+		has_runtime_pm = igt_setup_runtime_pm();
+		igt_info("Runtime PM support: %d\n", has_runtime_pm);
+		igt_require(has_runtime_pm);
+		igt_require(igt_pm_dmc_loaded(data.debugfs_fd));
+		igt_display_require(&data.display, data.drm_fd);
+	}
+
+	igt_subtest("dc5-psr") {
+		data.op_psr_mode = PSR_MODE_1;
+		psr_enable(data.debugfs_fd, data.op_psr_mode);
+		igt_require_f(edp_psr_sink_support(&data),
+			      "Sink does not support PSR\n");
+		test_dc_state_psr(&data, CHECK_DC5);
+	}
+	igt_fixture {
+		close(data.debugfs_fd);
+		display_fini(&data);
+	}
+
+	igt_exit();
+}
diff --git a/tests/meson.build b/tests/meson.build
index 9015f80..9437fad 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -221,6 +221,7 @@ i915_progs = [
 	'i915_pm_lpsp',
 	'i915_pm_rc6_residency',
 	'i915_pm_rpm',
+	'i915_pm_dc',
 	'i915_pm_rps',
 	'i915_pm_sseu',
 	'i915_query',
-- 
2.7.4

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[PATCH i-g-t 3/5] tests/pm_dc: Added test for DC6 during PSR

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

This patch add subtest to check DC6 entry on PSR for the supported
platforms.

v2: Rename the subtest with more meaningful name.
v3: Rebased.
v4: Rebased, to fix compilation error in psr_enable().
    Addressed review comment by fixing typo in comment description
    of DC6 PSR subtest.
v5: Addressed the review comment by removing redundant read_dc_counter(),
    clubbed cleanup() function in test_dc_state_psr() suggested by Imre.
    Listing actual change in patch set changelog to make review easier.
v6: Rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/i915_pm_dc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index 3bb8083..cf79790 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -200,6 +200,14 @@ int main(int argc, char *argv[])
 			      "Sink does not support PSR\n");
 		test_dc_state_psr(&data, CHECK_DC5);
 	}
+
+	igt_subtest("dc6-psr") {
+		data.op_psr_mode = PSR_MODE_1;
+		psr_enable(data.debugfs_fd, data.op_psr_mode);
+		igt_require_f(edp_psr_sink_support(&data),
+			      "Sink does not support PSR\n");
+		test_dc_state_psr(&data, CHECK_DC6);
+	}
 	igt_fixture {
 		close(data.debugfs_fd);
 		display_fini(&data);
-- 
2.7.4

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[igt-dev] [PATCH i-g-t 3/5] tests/pm_dc: Added test for DC6 during PSR

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

This patch add subtest to check DC6 entry on PSR for the supported
platforms.

v2: Rename the subtest with more meaningful name.
v3: Rebased.
v4: Rebased, to fix compilation error in psr_enable().
    Addressed review comment by fixing typo in comment description
    of DC6 PSR subtest.
v5: Addressed the review comment by removing redundant read_dc_counter(),
    clubbed cleanup() function in test_dc_state_psr() suggested by Imre.
    Listing actual change in patch set changelog to make review easier.
v6: Rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/i915_pm_dc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index 3bb8083..cf79790 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -200,6 +200,14 @@ int main(int argc, char *argv[])
 			      "Sink does not support PSR\n");
 		test_dc_state_psr(&data, CHECK_DC5);
 	}
+
+	igt_subtest("dc6-psr") {
+		data.op_psr_mode = PSR_MODE_1;
+		psr_enable(data.debugfs_fd, data.op_psr_mode);
+		igt_require_f(edp_psr_sink_support(&data),
+			      "Sink does not support PSR\n");
+		test_dc_state_psr(&data, CHECK_DC6);
+	}
 	igt_fixture {
 		close(data.debugfs_fd);
 		display_fini(&data);
-- 
2.7.4

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[PATCH i-g-t 4/5] tests/pm_dc: Added test for DC5 during DPMS

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Added new subtest for DC5 entry during DPMS on/off cycle.
During DPMS on/off cycle DC5 counter is incremented.

v2: Rename the subtest with meaningful name.
v3: Rebased.
v4: Addressed review comments by removing leftover code
    cleanup().
v5: Addressed the review comment by removing redundant
    read_dc_counter() suggested by Imre.
    Listing actual change in patch set changelog to make review easier.
v6: Three way patch applied, no functional change.
v7: Disabling runtime suspend for the platfrom which support, DC9.
    rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/i915_pm_dc.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index cf79790..813e38f 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -46,6 +46,7 @@ typedef struct {
 	enum psr_mode op_psr_mode;
 	drmModeModeInfo *mode;
 	igt_output_t *output;
+	bool runtime_suspend_disabled;
 } data_t;
 
 bool dc_state_wait_entry(int, int, int);
@@ -173,6 +174,33 @@ static void test_dc_state_psr(data_t *data, int dc_flag)
 	cleanup(data);
 }
 
+static void dpms_off_on(data_t *data)
+{
+	for (int i = 0; i < data->display.n_outputs; i++) {
+		kmstest_set_connector_dpms(data->drm_fd, data->display.outputs[i].config.connector,
+					   DRM_MODE_DPMS_OFF);
+	}
+	if (!data->runtime_suspend_disabled)
+		igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+	for (int i = 0; i < data->display.n_outputs; i++) {
+		kmstest_set_connector_dpms(data->drm_fd, data->display.outputs[i].config.connector,
+				   DRM_MODE_DPMS_ON);
+	}
+	igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_ACTIVE));
+}
+
+static void test_dc_state_dpms(data_t *data, int dc_flag)
+{
+	uint32_t dc_counter;
+
+	dc_counter = read_dc_counter(data->drm_fd, dc_flag);
+	if (IS_BROXTON(data->devid) && IS_GEMINILAKE(data->devid) &&
+		AT_LEAST_GEN(data->devid, 11))
+		data->runtime_suspend_disabled = igt_disable_runtime_pm();
+	dpms_off_on(data);
+	check_dc_counter(data->drm_fd, dc_flag, dc_counter);
+}
+
 int main(int argc, char *argv[])
 {
 	bool has_runtime_pm;
@@ -189,6 +217,7 @@ int main(int argc, char *argv[])
 		has_runtime_pm = igt_setup_runtime_pm();
 		igt_info("Runtime PM support: %d\n", has_runtime_pm);
 		igt_require(has_runtime_pm);
+		data.runtime_suspend_disabled = false;
 		igt_require(igt_pm_dmc_loaded(data.debugfs_fd));
 		igt_display_require(&data.display, data.drm_fd);
 	}
@@ -208,6 +237,11 @@ int main(int argc, char *argv[])
 			      "Sink does not support PSR\n");
 		test_dc_state_psr(&data, CHECK_DC6);
 	}
+
+	igt_subtest("dc5-dpms") {
+		test_dc_state_dpms(&data, CHECK_DC5);
+	}
+
 	igt_fixture {
 		close(data.debugfs_fd);
 		display_fini(&data);
-- 
2.7.4

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[igt-dev] [PATCH i-g-t 4/5] tests/pm_dc: Added test for DC5 during DPMS

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Added new subtest for DC5 entry during DPMS on/off cycle.
During DPMS on/off cycle DC5 counter is incremented.

v2: Rename the subtest with meaningful name.
v3: Rebased.
v4: Addressed review comments by removing leftover code
    cleanup().
v5: Addressed the review comment by removing redundant
    read_dc_counter() suggested by Imre.
    Listing actual change in patch set changelog to make review easier.
v6: Three way patch applied, no functional change.
v7: Disabling runtime suspend for the platfrom which support, DC9.
    rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/i915_pm_dc.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index cf79790..813e38f 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -46,6 +46,7 @@ typedef struct {
 	enum psr_mode op_psr_mode;
 	drmModeModeInfo *mode;
 	igt_output_t *output;
+	bool runtime_suspend_disabled;
 } data_t;
 
 bool dc_state_wait_entry(int, int, int);
@@ -173,6 +174,33 @@ static void test_dc_state_psr(data_t *data, int dc_flag)
 	cleanup(data);
 }
 
+static void dpms_off_on(data_t *data)
+{
+	for (int i = 0; i < data->display.n_outputs; i++) {
+		kmstest_set_connector_dpms(data->drm_fd, data->display.outputs[i].config.connector,
+					   DRM_MODE_DPMS_OFF);
+	}
+	if (!data->runtime_suspend_disabled)
+		igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+	for (int i = 0; i < data->display.n_outputs; i++) {
+		kmstest_set_connector_dpms(data->drm_fd, data->display.outputs[i].config.connector,
+				   DRM_MODE_DPMS_ON);
+	}
+	igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_ACTIVE));
+}
+
+static void test_dc_state_dpms(data_t *data, int dc_flag)
+{
+	uint32_t dc_counter;
+
+	dc_counter = read_dc_counter(data->drm_fd, dc_flag);
+	if (IS_BROXTON(data->devid) && IS_GEMINILAKE(data->devid) &&
+		AT_LEAST_GEN(data->devid, 11))
+		data->runtime_suspend_disabled = igt_disable_runtime_pm();
+	dpms_off_on(data);
+	check_dc_counter(data->drm_fd, dc_flag, dc_counter);
+}
+
 int main(int argc, char *argv[])
 {
 	bool has_runtime_pm;
@@ -189,6 +217,7 @@ int main(int argc, char *argv[])
 		has_runtime_pm = igt_setup_runtime_pm();
 		igt_info("Runtime PM support: %d\n", has_runtime_pm);
 		igt_require(has_runtime_pm);
+		data.runtime_suspend_disabled = false;
 		igt_require(igt_pm_dmc_loaded(data.debugfs_fd));
 		igt_display_require(&data.display, data.drm_fd);
 	}
@@ -208,6 +237,11 @@ int main(int argc, char *argv[])
 			      "Sink does not support PSR\n");
 		test_dc_state_psr(&data, CHECK_DC6);
 	}
+
+	igt_subtest("dc5-dpms") {
+		test_dc_state_dpms(&data, CHECK_DC5);
+	}
+
 	igt_fixture {
 		close(data.debugfs_fd);
 		display_fini(&data);
-- 
2.7.4

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[PATCH i-g-t 5/5] tests/pm_dc: Added test for DC6 during DPMS

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Added new subtest for DC6 entry during DPMS on/off cycle.
During DPMS on/off cycle DC6 counter is incremented.

v2: Renamed the subtest name.
v3: Rebased.
v4: Addressed review comment by replacing igt_display_init() to
    igt_display_require(), changes got done in patch set 2.
v5: Addressed the review comment by removing redundant read_dc_counter()
    suggested by Imre.
    Listing actual change in patch set changelog to make review easier.
v6: Rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/i915_pm_dc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index 813e38f..975e976 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -242,6 +242,10 @@ int main(int argc, char *argv[])
 		test_dc_state_dpms(&data, CHECK_DC5);
 	}
 
+	igt_subtest("dc6-dpms") {
+		test_dc_state_dpms(&data, CHECK_DC6);
+	}
+
 	igt_fixture {
 		close(data.debugfs_fd);
 		display_fini(&data);
-- 
2.7.4

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[Intel-gfx] [PATCH i-g-t 5/5] tests/pm_dc: Added test for DC6 during DPMS

[Anshuman Gupta]

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Added new subtest for DC6 entry during DPMS on/off cycle.
During DPMS on/off cycle DC6 counter is incremented.

v2: Renamed the subtest name.
v3: Rebased.
v4: Addressed review comment by replacing igt_display_init() to
    igt_display_require(), changes got done in patch set 2.
v5: Addressed the review comment by removing redundant read_dc_counter()
    suggested by Imre.
    Listing actual change in patch set changelog to make review easier.
v6: Rebased due to test name pm_dc changed to i915_pm_dc, aligning to
    other PM tests.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/i915_pm_dc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index 813e38f..975e976 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -242,6 +242,10 @@ int main(int argc, char *argv[])
 		test_dc_state_dpms(&data, CHECK_DC5);
 	}
 
+	igt_subtest("dc6-dpms") {
+		test_dc_state_dpms(&data, CHECK_DC6);
+	}
+
 	igt_fixture {
 		close(data.debugfs_fd);
 		display_fini(&data);
-- 
2.7.4

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[igt-dev] ✓ Fi.CI.BAT: success for DC states igt tests patch series (rev4)

[Patchwork]

== Series Details ==

Series: DC states igt tests patch series (rev4)
URL   : https://patchwork.freedesktop.org/series/56713/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_5714 -> IGTPW_2567
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://patchwork.freedesktop.org/api/1.0/series/56713/revisions/4/mbox/

Known issues
------------

  Here are the changes found in IGTPW_2567 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_basic@cs-compute:
    - fi-kbl-8809g:       NOTRUN -> FAIL [fdo#108094]

  * igt@amdgpu/amd_basic@query-info:
    - fi-bsw-kefka:       NOTRUN -> SKIP [fdo#109271] +55

  * igt@gem_exec_basic@basic-bsd2:
    - fi-kbl-7500u:       NOTRUN -> SKIP [fdo#109271] +9

  * igt@gem_exec_basic@gtt-bsd:
    - fi-bwr-2160:        NOTRUN -> SKIP [fdo#109271] +103

  * igt@i915_selftest@live_execlists:
    - fi-apl-guc:         NOTRUN -> INCOMPLETE [fdo#103927] / [fdo#109720]

  * igt@kms_busy@basic-flip-c:
    - fi-skl-6770hq:      PASS -> SKIP [fdo#109271] / [fdo#109278] +2
    - fi-bwr-2160:        NOTRUN -> SKIP [fdo#109271] / [fdo#109278]
    - fi-blb-e6850:       NOTRUN -> SKIP [fdo#109271] / [fdo#109278]
    - fi-byt-j1900:       NOTRUN -> SKIP [fdo#109271] / [fdo#109278]
    - fi-bsw-kefka:       NOTRUN -> SKIP [fdo#109271] / [fdo#109278]

  * igt@kms_chamelium@dp-crc-fast:
    - fi-kbl-7500u:       NOTRUN -> DMESG-WARN [fdo#103841]

  * igt@kms_chamelium@hdmi-crc-fast:
    - fi-byt-j1900:       NOTRUN -> SKIP [fdo#109271] +52

  * igt@kms_chamelium@vga-edid-read:
    - fi-skl-6600u:       NOTRUN -> SKIP [fdo#109271] +41

  * igt@kms_flip@basic-flip-vs-dpms:
    - fi-skl-6770hq:      PASS -> SKIP [fdo#109271] +33

  * igt@kms_force_connector_basic@force-load-detect:
    - fi-bxt-j4205:       NOTRUN -> SKIP [fdo#109271] +47

  * igt@kms_pipe_crc_basic@hang-read-crc-pipe-c:
    - fi-blb-e6850:       NOTRUN -> SKIP [fdo#109271] +20

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b:
    - fi-blb-e6850:       NOTRUN -> INCOMPLETE [fdo#107718]

  * igt@kms_psr@primary_page_flip:
    - fi-apl-guc:         NOTRUN -> SKIP [fdo#109271] +50

  * igt@runner@aborted:
    - fi-kbl-7500u:       NOTRUN -> FAIL [fdo#103841]
    - fi-apl-guc:         NOTRUN -> FAIL [fdo#108622] / [fdo#109720]

  
#### Possible fixes ####

  * igt@amdgpu/amd_basic@userptr:
    - fi-kbl-8809g:       DMESG-WARN [fdo#108965] -> PASS

  * igt@gem_exec_suspend@basic-s4-devices:
    - fi-blb-e6850:       INCOMPLETE [fdo#107718] -> PASS

  * igt@kms_busy@basic-flip-a:
    - fi-gdg-551:         FAIL [fdo#103182] -> PASS

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence:
    - fi-byt-clapper:     FAIL [fdo#103191] / [fdo#107362] -> PASS

  
  [fdo#103182]: https://bugs.freedesktop.org/show_bug.cgi?id=103182
  [fdo#103191]: https://bugs.freedesktop.org/show_bug.cgi?id=103191
  [fdo#103841]: https://bugs.freedesktop.org/show_bug.cgi?id=103841
  [fdo#103927]: https://bugs.freedesktop.org/show_bug.cgi?id=103927
  [fdo#107362]: https://bugs.freedesktop.org/show_bug.cgi?id=107362
  [fdo#107718]: https://bugs.freedesktop.org/show_bug.cgi?id=107718
  [fdo#108094]: https://bugs.freedesktop.org/show_bug.cgi?id=108094
  [fdo#108622]: https://bugs.freedesktop.org/show_bug.cgi?id=108622
  [fdo#108965]: https://bugs.freedesktop.org/show_bug.cgi?id=108965
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109278]: https://bugs.freedesktop.org/show_bug.cgi?id=109278
  [fdo#109720]: https://bugs.freedesktop.org/show_bug.cgi?id=109720


Participating hosts (40 -> 40)
------------------------------

  Additional (7): fi-byt-j1900 fi-bwr-2160 fi-apl-guc fi-kbl-7500u fi-bxt-j4205 fi-bsw-kefka fi-skl-6600u 
  Missing    (7): fi-kbl-soraka fi-hsw-4770r fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-skl-6260u fi-ctg-p8600 


Build changes
-------------

    * IGT: IGT_4876 -> IGTPW_2567

  CI_DRM_5714: f0591e61349e96e8faba5348515043884e5ba542 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_2567: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2567/
  IGT_4876: 51b8d4cfde8d5b0176180b9683accea91474c7ff @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools



== Testlist changes ==

+igt@i915_pm_dc@dc5-dpms
+igt@i915_pm_dc@dc5-psr
+igt@i915_pm_dc@dc6-dpms
+igt@i915_pm_dc@dc6-psr

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2567/
_______________________________________________
igt-dev mailing list
igt-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/igt-dev

[igt-dev] ✓ Fi.CI.IGT: success for DC states igt tests patch series (rev4)

[Patchwork]

== Series Details ==

Series: DC states igt tests patch series (rev4)
URL   : https://patchwork.freedesktop.org/series/56713/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_5714_full -> IGTPW_2567_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://patchwork.freedesktop.org/api/1.0/series/56713/revisions/4/mbox/

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in IGTPW_2567_full:

### IGT changes ###

#### Possible regressions ####

  * {igt@i915_pm_dc@dc5-dpms} (NEW):
    - shard-glk:          NOTRUN -> FAIL
    - shard-apl:          NOTRUN -> FAIL

  * {igt@i915_pm_dc@dc6-dpms} (NEW):
    - shard-kbl:          NOTRUN -> FAIL

  
New tests
---------

  New tests have been introduced between CI_DRM_5714_full and IGTPW_2567_full:

### New IGT tests (4) ###

  * igt@i915_pm_dc@dc5-dpms:
    - Statuses : 2 fail(s) 1 pass(s) 2 skip(s)
    - Exec time: [0.0, 3.78] s

  * igt@i915_pm_dc@dc5-psr:
    - Statuses : 5 skip(s)
    - Exec time: [0.0] s

  * igt@i915_pm_dc@dc6-dpms:
    - Statuses : 1 fail(s) 4 skip(s)
    - Exec time: [0.0, 3.63] s

  * igt@i915_pm_dc@dc6-psr:
    - Statuses : 5 skip(s)
    - Exec time: [0.0] s

  

Known issues
------------

  Here are the changes found in IGTPW_2567_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * {igt@i915_pm_dc@dc5-dpms} (NEW):
    - shard-hsw:          NOTRUN -> SKIP [fdo#109271] +3

  * {igt@i915_pm_dc@dc6-dpms} (NEW):
    - shard-apl:          NOTRUN -> SKIP [fdo#109271] +17

  * {igt@i915_pm_dc@dc6-psr} (NEW):
    - shard-kbl:          NOTRUN -> SKIP [fdo#109271] +1

  * igt@i915_pm_rpm@gem-execbuf-stress-extra-wait:
    - shard-snb:          NOTRUN -> SKIP [fdo#109271] +102

  * igt@kms_busy@extended-modeset-hang-newfb-render-f:
    - shard-glk:          NOTRUN -> SKIP [fdo#109271] / [fdo#109278]

  * igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b:
    - shard-snb:          PASS -> DMESG-WARN [fdo#107956]
    - shard-hsw:          PASS -> DMESG-WARN [fdo#107956]

  * igt@kms_busy@extended-modeset-hang-oldfb-with-reset-render-c:
    - shard-snb:          NOTRUN -> SKIP [fdo#109271] / [fdo#109278] +10

  * igt@kms_ccs@pipe-a-crc-sprite-planes-basic:
    - shard-glk:          PASS -> FAIL [fdo#108145] +1

  * igt@kms_color@pipe-a-gamma:
    - shard-kbl:          PASS -> FAIL [fdo#104782]

  * igt@kms_color@pipe-c-ctm-max:
    - shard-apl:          PASS -> FAIL [fdo#108147]

  * igt@kms_color@pipe-c-legacy-gamma:
    - shard-apl:          PASS -> FAIL [fdo#104782]

  * igt@kms_cursor_crc@cursor-size-change:
    - shard-glk:          PASS -> FAIL [fdo#103232]
    - shard-apl:          PASS -> FAIL [fdo#103232] +2

  * igt@kms_flip@flip-vs-expired-vblank-interruptible:
    - shard-glk:          PASS -> FAIL [fdo#105363]

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-mmap-cpu:
    - shard-apl:          PASS -> FAIL [fdo#103167]

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-fullscreen:
    - shard-kbl:          PASS -> FAIL [fdo#103167]

  * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-spr-indfb-onoff:
    - shard-glk:          PASS -> FAIL [fdo#103167] +11

  * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-pwrite:
    - shard-glk:          NOTRUN -> SKIP [fdo#109271] +7

  * igt@kms_plane_multiple@atomic-pipe-a-tiling-y:
    - shard-apl:          PASS -> FAIL [fdo#103166] +2

  * igt@kms_plane_multiple@atomic-pipe-b-tiling-none:
    - shard-glk:          PASS -> FAIL [fdo#103166] +9

  * igt@kms_rotation_crc@multiplane-rotation-cropping-top:
    - shard-kbl:          PASS -> FAIL [fdo#109016] +1

  * igt@kms_universal_plane@universal-plane-gen9-features-pipe-d:
    - shard-apl:          NOTRUN -> SKIP [fdo#109271] / [fdo#109278]

  * igt@kms_vblank@pipe-b-ts-continuation-dpms-suspend:
    - shard-kbl:          PASS -> FAIL [fdo#104894]
    - shard-apl:          PASS -> FAIL [fdo#104894]

  * igt@kms_vblank@pipe-b-wait-forked:
    - shard-snb:          PASS -> SKIP [fdo#109271]

  
#### Possible fixes ####

  * igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-a:
    - shard-snb:          DMESG-WARN [fdo#107956] -> PASS +1
    - shard-hsw:          DMESG-WARN [fdo#107956] -> PASS

  * igt@kms_cursor_crc@cursor-256x256-sliding:
    - shard-kbl:          FAIL [fdo#103232] -> PASS

  * igt@kms_cursor_crc@cursor-256x85-onscreen:
    - shard-apl:          FAIL [fdo#103232] -> PASS +5

  * igt@kms_cursor_crc@cursor-64x64-suspend:
    - shard-apl:          FAIL [fdo#103191] / [fdo#103232] -> PASS
    - shard-kbl:          FAIL [fdo#103191] / [fdo#103232] -> PASS

  * igt@kms_flip@flip-vs-expired-vblank:
    - shard-glk:          FAIL [fdo#102887] -> PASS

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-pwrite:
    - shard-apl:          FAIL [fdo#103167] -> PASS +1

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-render:
    - shard-kbl:          FAIL [fdo#103167] -> PASS

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-move:
    - shard-glk:          FAIL [fdo#103167] -> PASS

  * igt@kms_plane_multiple@atomic-pipe-a-tiling-x:
    - shard-glk:          FAIL [fdo#103166] -> PASS

  * igt@kms_setmode@basic:
    - shard-kbl:          FAIL [fdo#99912] -> PASS

  * igt@kms_universal_plane@universal-plane-pipe-b-functional:
    - shard-apl:          FAIL [fdo#103166] -> PASS +2

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-apl:          FAIL [fdo#104894] -> PASS +3

  * igt@kms_vblank@pipe-c-ts-continuation-modeset:
    - shard-kbl:          FAIL [fdo#104894] -> PASS +1

  * igt@perf_pmu@rc6-runtime-pm:
    - shard-apl:          FAIL [fdo#105010] -> PASS
    - shard-kbl:          FAIL [fdo#105010] -> PASS

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#102887]: https://bugs.freedesktop.org/show_bug.cgi?id=102887
  [fdo#103166]: https://bugs.freedesktop.org/show_bug.cgi?id=103166
  [fdo#103167]: https://bugs.freedesktop.org/show_bug.cgi?id=103167
  [fdo#103191]: https://bugs.freedesktop.org/show_bug.cgi?id=103191
  [fdo#103232]: https://bugs.freedesktop.org/show_bug.cgi?id=103232
  [fdo#104782]: https://bugs.freedesktop.org/show_bug.cgi?id=104782
  [fdo#104894]: https://bugs.freedesktop.org/show_bug.cgi?id=104894
  [fdo#105010]: https://bugs.freedesktop.org/show_bug.cgi?id=105010
  [fdo#105363]: https://bugs.freedesktop.org/show_bug.cgi?id=105363
  [fdo#107956]: https://bugs.freedesktop.org/show_bug.cgi?id=107956
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#108147]: https://bugs.freedesktop.org/show_bug.cgi?id=108147
  [fdo#109016]: https://bugs.freedesktop.org/show_bug.cgi?id=109016
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109278]: https://bugs.freedesktop.org/show_bug.cgi?id=109278
  [fdo#99912]: https://bugs.freedesktop.org/show_bug.cgi?id=99912


Participating hosts (7 -> 5)
------------------------------

  Missing    (2): shard-skl shard-iclb 


Build changes
-------------

    * IGT: IGT_4876 -> IGTPW_2567
    * Piglit: piglit_4509 -> None

  CI_DRM_5714: f0591e61349e96e8faba5348515043884e5ba542 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGTPW_2567: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2567/
  IGT_4876: 51b8d4cfde8d5b0176180b9683accea91474c7ff @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2567/
_______________________________________________
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