[PATCH v2 15/22] drm/xe: Add deadline Kconfig options

[Matthew Brost <matthew.brost@intel.com>]

Add Kconfig options to tune the deadline manager behavior.

CONFIG_DRM_XE_DEADLINE_WINDOW_US configures the deadline window. If a
fence is not signaled within this window prior to the programmed
deadline, deadline boosting is activated. The default is 3000 us,
allowing OEMs to tune deadline sensitivity.

CONFIG_DRM_XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT configures the
percentage of the deadline window during which priority boosting is
applied in addition to frequency boosting.

CONFIG_DRM_XE_DEADLINE_EXIT_DELAY_MS configures the delay from the last
deadline signaling until the boost mode is exited.

v2:
 - s/CONFIG_DRM_XE_DEADLINE_WINDOW/CONFIG_DRM_XE_DEADLINE_WINDOW_US
 - Add priority boost percent Kconfig

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/xe/Kconfig.profile   | 22 ++++++++++++++++++++++
 drivers/gpu/drm/xe/xe_deadline_mgr.c | 17 ++++++++++++++++-
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/Kconfig.profile b/drivers/gpu/drm/xe/Kconfig.profile
index 594acedf7b56..e01e7cc11c53 100644
--- a/drivers/gpu/drm/xe/Kconfig.profile
+++ b/drivers/gpu/drm/xe/Kconfig.profile
@@ -60,3 +60,25 @@ config DRM_XE_ENABLE_SCHEDTIMEOUT_LIMIT
 	  to apply to applicable user. For elevated user, all above MIN
 	  and MAX values will apply when this configuration is enable to
 	  apply limitation. By default limitation is applied.
+
+config DRM_XE_DEADLINE_WINDOW_US
+	int "Default deadline window (us)"
+	default 3000
+	help
+	  Specifies the deadline window in microseconds. If a fence has not
+	  been signaled when the current time is within this window of its
+	  programmed deadline, deadline boosting is enabled.
+
+config DRM_XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT
+	int "Percent of deadline window with priority boost"
+	default 60
+	range 0 100
+	help
+	  Specifies the percentage of the deadline window during which
+	  priority boosting is applied in addition to frequency boosting.
+
+config DRM_XE_DEADLINE_EXIT_DELAY_MS
+	int "Default deadline exit delay (ms)"
+	default 100
+	help
+	  Specifies the deadline exit delay in milliseconds.
diff --git a/drivers/gpu/drm/xe/xe_deadline_mgr.c b/drivers/gpu/drm/xe/xe_deadline_mgr.c
index 061664ed24e3..8ebecf92aa8c 100644
--- a/drivers/gpu/drm/xe/xe_deadline_mgr.c
+++ b/drivers/gpu/drm/xe/xe_deadline_mgr.c
@@ -11,9 +11,24 @@
 #include "xe_gt.h"
 #include "xe_hw_fence.h"
 
+#ifdef CONFIG_DRM_XE_DEADLINE_WINDOW_US
+#define XE_DEADLINE_WINDOW_US	CONFIG_DRM_XE_DEADLINE_WINDOW_US
+#else
 #define XE_DEADLINE_WINDOW_US			3000
-#define XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT	60
+#endif
+
+#ifdef CONFIG_DRM_XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT
+#define XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT	\
+	CONFIG_DRM_XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT
+#else
+#define XE_DEADLINE_PRIO_BOOST_WINDOW_PERCENT   60
+#endif
+
+#ifdef CONFIG_DRM_XE_DEADLINE_EXIT_DELAY_MS
+#define XE_DEADLINE_EXIT_DELAY_MS	CONFIG_DRM_XE_DEADLINE_EXIT_DELAY_MS
+#else
 #define XE_DEADLINE_EXIT_DELAY_MS		100
+#endif
 
 static ktime_t __xe_deadline_mgr_freq_boost_window(void)
 {
-- 
2.34.1