[igt-dev] [PATCH i-g-t 2/4] lib: Make SLPC helper function per GT

[Vinay Belgaumkar <vinay.belgaumkar@intel.com>]

Use default of 0 where GT id is not being used.

Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
---
 lib/igt_pm.c             | 20 ++++++++++----------
 lib/igt_pm.h             |  2 +-
 tests/i915/i915_pm_rps.c |  6 +++---
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/lib/igt_pm.c b/lib/igt_pm.c
index 704acf7d..8ca7c181 100644
--- a/lib/igt_pm.c
+++ b/lib/igt_pm.c
@@ -1329,21 +1329,21 @@ void igt_pm_print_pci_card_runtime_status(void)
 	}
 }
 
-bool i915_is_slpc_enabled(int fd)
+bool i915_is_slpc_enabled(int drm_fd, int gt)
 {
-	int debugfs_fd = igt_debugfs_dir(fd);
-	char buf[4096] = {};
-	int len;
+	int debugfs_fd;
+	char buf[256] = {};
+
+	debugfs_fd = igt_debugfs_gt_open(drm_fd, gt, "uc/guc_slpc_info", O_RDONLY);
 
-	igt_require(debugfs_fd != -1);
+	/* if guc_slpc_info not present then return false */
+	if (debugfs_fd < 0)
+		return false;
+	read(debugfs_fd, buf, sizeof(buf)-1);
 
-	len = igt_debugfs_simple_read(debugfs_fd, "gt/uc/guc_slpc_info", buf, sizeof(buf));
 	close(debugfs_fd);
 
-	if (len < 0)
-		return false;
-	else
-		return strstr(buf, "SLPC state: running");
+	return strstr(buf, "SLPC state: running");
 }
 
 int igt_pm_get_runtime_suspended_time(struct pci_device *pci_dev)
diff --git a/lib/igt_pm.h b/lib/igt_pm.h
index d0d6d673..1b054dce 100644
--- a/lib/igt_pm.h
+++ b/lib/igt_pm.h
@@ -84,7 +84,7 @@ void igt_pm_set_d3cold_allowed(struct igt_device_card *card, const char *val);
 void igt_pm_setup_pci_card_runtime_pm(struct pci_device *pci_dev);
 void igt_pm_restore_pci_card_runtime_pm(void);
 void igt_pm_print_pci_card_runtime_status(void);
-bool i915_is_slpc_enabled(int fd);
+bool i915_is_slpc_enabled(int fd, int gt);
 int igt_pm_get_runtime_suspended_time(struct pci_device *pci_dev);
 int igt_pm_get_runtime_usage(struct pci_device *pci_dev);
 
diff --git a/tests/i915/i915_pm_rps.c b/tests/i915/i915_pm_rps.c
index d4ee2d58..85dae449 100644
--- a/tests/i915/i915_pm_rps.c
+++ b/tests/i915/i915_pm_rps.c
@@ -916,21 +916,21 @@ igt_main
 	}
 
 	igt_subtest("basic-api") {
-		igt_skip_on_f(i915_is_slpc_enabled(drm_fd),
+		igt_skip_on_f(i915_is_slpc_enabled(drm_fd, 0),
 			      "This subtest is not supported when SLPC is enabled\n");
 		min_max_config(basic_check, false);
 	}
 
 	/* Verify the constraints, check if we can reach idle */
 	igt_subtest("min-max-config-idle") {
-		igt_skip_on_f(i915_is_slpc_enabled(drm_fd),
+		igt_skip_on_f(i915_is_slpc_enabled(drm_fd, 0),
 			      "This subtest is not supported when SLPC is enabled\n");
 		min_max_config(idle_check, true);
 	}
 
 	/* Verify the constraints with high load, check if we can reach max */
 	igt_subtest("min-max-config-loaded") {
-		igt_skip_on_f(i915_is_slpc_enabled(drm_fd),
+		igt_skip_on_f(i915_is_slpc_enabled(drm_fd, 0),
 			      "This subtest is not supported when SLPC is enabled\n");
 		load_helper_run(HIGH);
 		min_max_config(loaded_check, false);
-- 
2.38.1