[PATCH v3 1/4] drm/xe/bmg: Update Wa_14022085890

[Vinay Belgaumkar]

Set GT min frequency to 1200Mhz once driver load is
complete.

v2: Review comments (Rodrigo)
v3: Apply Wa earlier so user_req_min is not clobbered.

Cc: Matt Roper <matthew.d.roper at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar at intel.com>
---
 drivers/gpu/drm/xe/xe_guc_pc.c     | 5 +++++
 drivers/gpu/drm/xe/xe_wa_oob.rules | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_guc_pc.c b/drivers/gpu/drm/xe/xe_guc_pc.c
index 18c623992035..cb0563494fcc 100644
--- a/drivers/gpu/drm/xe/xe_guc_pc.c
+++ b/drivers/gpu/drm/xe/xe_guc_pc.c
@@ -51,6 +51,7 @@
 
 #define LNL_MERT_FREQ_CAP	800
 #define BMG_MERT_FREQ_CAP	2133
+#define BMG_MIN_FREQ		1200
 
 #define SLPC_RESET_TIMEOUT_MS 5 /* roughly 5ms, but no need for precision */
 #define SLPC_RESET_EXTENDED_TIMEOUT_MS 1000 /* To be used only at pc_start */
@@ -843,6 +844,9 @@ static int pc_adjust_freq_bounds(struct xe_guc_pc *pc)
 	if (pc_get_min_freq(pc) > pc->rp0_freq)
 		ret = pc_set_min_freq(pc, pc->rp0_freq);
 
+	if (XE_WA(pc_to_gt(pc), 14022085890))
+		ret = pc_set_min_freq(pc, max(BMG_MIN_FREQ, pc_get_min_freq(pc)));
+
 out:
 	return ret;
 }
@@ -879,6 +883,7 @@ static int pc_set_mert_freq_cap(struct xe_guc_pc *pc)
 		ret = xe_guc_pc_get_min_freq(pc, &pc->stashed_min_freq);
 		if (!ret)
 			ret = xe_guc_pc_get_max_freq(pc, &pc->stashed_max_freq);
+
 		if (ret)
 			return ret;
 
diff --git a/drivers/gpu/drm/xe/xe_wa_oob.rules b/drivers/gpu/drm/xe/xe_wa_oob.rules
index 9efc5accd43d..75fbdab68d44 100644
--- a/drivers/gpu/drm/xe/xe_wa_oob.rules
+++ b/drivers/gpu/drm/xe/xe_wa_oob.rules
@@ -59,3 +59,4 @@ no_media_l3	MEDIA_VERSION(3000)
 		MEDIA_VERSION_RANGE(1301, 3000)
 16026508708	GRAPHICS_VERSION_RANGE(1200, 3001)
 		MEDIA_VERSION_RANGE(1300, 3000)
+14022085890	GRAPHICS_VERSION(2001)
-- 
2.38.1