[igt-dev] [PATCH i-g-t v4 1/2] tests/i915/i915_pm_rpm: Enable PC8+ residency test for all Gen9+
Anshuman Gupta
anshuman.gupta at intel.com
Thu Mar 28 12:51:07 UTC 2019
Enabled has_pc8 global for ICL and Gen9+.
Modified PC8+ residency sub-test with all screen enabled.
v2:Fixed the issue of skipped test on HSW.
Improved the code comment for MSR_PKG_CST_CONFIG_CONTROL mask and PC8
bits, it holds good for SKL/ICL and Goldmont microarchitecture.
Code readabilty improvement.
v3:Removed the connected_screens global. [Ram]
Removed pc8_needs_screen_off from mode_set_data structure,
made it global, aligning to has_pc8 and has_runtime_pm globals. [Ram]
Reuse connector lcoal variable in init_modeset_params_for_all_screen(). [Ram]
Addressed Coding guide lines comments. [Ram]
v4:Improved the code comment for MSR_PKG_CST_CONFIG_CONTROL mask and PC8 bits. [Ram]
Introduced set_screens_mode_params() function to fix warning of line exceeding
80 char, fixed this warning at other places too. [Ram]
Using ms_data modset_data global structure. [Ram]
Introduced macros for timeout values, given to PC8+ residency check function. [Ram]
Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
---
tests/i915/i915_pm_rpm.c | 91 +++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 83 insertions(+), 8 deletions(-)
diff --git a/tests/i915/i915_pm_rpm.c b/tests/i915/i915_pm_rpm.c
index be296f5..70e8ac7 100644
--- a/tests/i915/i915_pm_rpm.c
+++ b/tests/i915/i915_pm_rpm.c
@@ -52,7 +52,11 @@
#include "igt_device.h"
#define MSR_PKG_CST_CONFIG_CONTROL 0xE2
-/* HSW/BDW: */
+/*
+ * Below PKG CST limit mask and PC8 bits are meant for
+ * HSW,BDW SKL,ICL and Goldmont Microarch.
+ * Refer IA S/W developers manual vol3c part3 chapter:35
+ */
#define PKG_CST_LIMIT_MASK 0xF
#define PKG_CST_LIMIT_C8 0x6
@@ -64,6 +68,10 @@
#define MAX_ENCODERS 32
#define MAX_CRTCS 16
+#define TIME_OUT_SEC_5 5
+#define TIME_OUT_SEC_10 10
+#define TIME_OUT_SEC_30 30
+
enum pc8_status {
PC8_ENABLED,
PC8_DISABLED
@@ -90,7 +98,7 @@ enum plane_type {
int drm_fd, msr_fd, pc8_status_fd;
int debugfs;
-bool has_runtime_pm, has_pc8;
+bool has_runtime_pm, has_pc8, pc8_needs_screen_off;
struct mode_set_data ms_data;
/* Stuff used when creating FBs and mode setting. */
@@ -121,9 +129,25 @@ struct modeset_params {
struct modeset_params lpsp_mode_params;
struct modeset_params non_lpsp_mode_params;
struct modeset_params *default_mode_params;
+struct modeset_params *screens_mode_params[MAX_CONNECTORS];
static int8_t *pm_data = NULL;
+static inline void set_screens_mode_param(drmModeConnectorPtr connector,
+ struct modeset_params *params)
+{
+ drmModeModeInfoPtr mode = NULL;
+
+ mode = &connector->modes[0];
+ igt_create_pattern_fb(drm_fd, mode->hdisplay, mode->vdisplay,
+ DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE,
+ ¶ms->fb);
+ params->crtc_id = kmstest_find_crtc_for_connector(drm_fd, ms_data.res,
+ connector, 0);
+ params->connector_id = connector->connector_id;
+ params->mode = mode;
+}
+
static int modprobe(const char *driver)
{
return igt_kmod_load(driver, NULL);
@@ -297,6 +321,28 @@ static bool init_modeset_params_for_type(struct mode_set_data *data,
return true;
}
+static void init_modeset_params_for_all_screen(void)
+{
+ drmModeConnectorPtr connector = NULL;
+ int screen = 0;
+
+ if (!ms_data.res)
+ return;
+
+ for (int i = 0; i < ms_data.res->count_connectors; i++) {
+ connector = ms_data.connectors[i];
+
+ if (connector->connection == DRM_MODE_CONNECTED
+ && connector->count_modes) {
+ screens_mode_params[screen] =
+ malloc(sizeof(struct modeset_params));
+ set_screens_mode_param(connector,
+ screens_mode_params[screen]);
+ screen++;
+ }
+ }
+}
+
static void init_modeset_cached_params(struct mode_set_data *data)
{
bool lpsp, non_lpsp;
@@ -305,6 +351,7 @@ static void init_modeset_cached_params(struct mode_set_data *data)
SCREEN_TYPE_LPSP);
non_lpsp = init_modeset_params_for_type(data, &non_lpsp_mode_params,
SCREEN_TYPE_NON_LPSP);
+ init_modeset_params_for_all_screen();
if (lpsp)
default_mode_params = &lpsp_mode_params;
@@ -353,6 +400,22 @@ static bool enable_one_screen_with_type(struct mode_set_data *data,
return set_mode_for_params(params);
}
+static void enable_all_screens(void)
+{
+ struct modeset_params *params = NULL;
+
+ /* SKIP if there are no connected screens. */
+ igt_require(screens_mode_params[0]);
+
+ for (int i = 0; i < MAX_CONNECTORS ; i++) {
+ params = screens_mode_params[i];
+ if (params)
+ set_mode_for_params(params);
+ else
+ break;
+ }
+}
+
static void enable_one_screen(struct mode_set_data *data)
{
/* SKIP if there are no connected screens. */
@@ -685,8 +748,12 @@ static void setup_pc8(void)
{
has_pc8 = false;
- /* Only Haswell supports the PC8 feature. */
- if (!IS_HASWELL(ms_data.devid) && !IS_BROADWELL(ms_data.devid))
+ if (IS_HASWELL(ms_data.devid) || IS_BROADWELL(ms_data.devid))
+ pc8_needs_screen_off = true;
+ else if (AT_LEAST_GEN(ms_data.devid, 9))
+ pc8_needs_screen_off = false;
+ /* Only Haswell supports the PC8 feature on lesser than GEN9. */
+ else
return;
/* Make sure our Kernel supports MSR and the module is loaded. */
@@ -803,14 +870,22 @@ static void pc8_residency_subtest(void)
/* Make sure PC8+ residencies move! */
disable_all_screens(&ms_data);
- igt_assert_f(pc8_plus_residency_changed(30),
+ igt_assert_f(pc8_plus_residency_changed(TIME_OUT_SEC_30),
"Machine is not reaching PC8+ states, please check its "
"configuration.\n");
/* Make sure PC8+ residencies stop! */
- enable_one_screen(&ms_data);
- igt_assert_f(!pc8_plus_residency_changed(10),
- "PC8+ residency didn't stop with screen enabled.\n");
+ if (pc8_needs_screen_off) {
+ enable_one_screen(&ms_data);
+ igt_assert_f(!pc8_plus_residency_changed(TIME_OUT_SEC_10),
+ "PC8+ residency didn't stop with "
+ "screen enabled.\n");
+ } else {
+ enable_all_screens();
+ igt_assert_f(pc8_plus_residency_changed(TIME_OUT_SEC_10),
+ "Machine is not reaching PC8+ states "
+ "with all screen enabled.\n");
+ }
}
static void modeset_subtest(enum screen_type type, int rounds, int wait_flags)
--
2.7.4
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