[PATCH v2 4/7] drm/xe/psmi: Add Wa_14020001231

[Lucas De Marchi]

From: Badal Nilawar <badal.nilawar at intel.com>

Enable Wa 14020001231 to block psmi interrupts during C6 entry exit
flow. It's only enabled if PSMI is enabled in runtime.

Signed-off-by: Badal Nilawar <badal.nilawar at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
v2:
 - Enable only when PSMI is enabled
---
 drivers/gpu/drm/xe/abi/guc_klvs_abi.h | 1 +
 drivers/gpu/drm/xe/xe_guc_ads.c       | 5 +++++
 drivers/gpu/drm/xe/xe_wa_oob.rules    | 4 ++++
 3 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
index 0366a9da59775..e52640d9ff8e8 100644
--- a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
+++ b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
@@ -390,6 +390,7 @@ enum  {
  */
 enum xe_guc_klv_ids {
 	GUC_WORKAROUND_KLV_BLOCK_INTERRUPTS_WHEN_MGSR_BLOCKED				= 0x9002,
+	GUC_WORKAROUND_KLV_DISABLE_PSMI_INTERRUPTS_AT_C6_ENTRY_RESTORE_AT_EXIT		= 0x9004,
 	GUC_WORKAROUND_KLV_ID_GAM_PFQ_SHADOW_TAIL_POLLING				= 0x9005,
 	GUC_WORKAROUND_KLV_ID_DISABLE_MTP_DURING_ASYNC_COMPUTE				= 0x9007,
 	GUC_WA_KLV_NP_RD_WRITE_TO_CLEAR_RCSM_AT_CGP_LATE_RESTORE			= 0x9008,
diff --git a/drivers/gpu/drm/xe/xe_guc_ads.c b/drivers/gpu/drm/xe/xe_guc_ads.c
index 131cfc56be00a..fa5861a1e5d55 100644
--- a/drivers/gpu/drm/xe/xe_guc_ads.c
+++ b/drivers/gpu/drm/xe/xe_guc_ads.c
@@ -382,6 +382,11 @@ static void guc_waklv_init(struct xe_guc_ads *ads)
 					GUC_WA_KLV_RESET_BB_STACK_PTR_ON_VF_SWITCH,
 					&offset, &remain);
 
+	if (XE_WA(gt, 14020001231))
+		guc_waklv_enable_simple(ads,
+					GUC_WORKAROUND_KLV_DISABLE_PSMI_INTERRUPTS_AT_C6_ENTRY_RESTORE_AT_EXIT,
+					&offset, &remain);
+
 	size = guc_ads_waklv_size(ads) - remain;
 	if (!size)
 		return;
diff --git a/drivers/gpu/drm/xe/xe_wa_oob.rules b/drivers/gpu/drm/xe/xe_wa_oob.rules
index e990f20eccfe3..ba58fa0ed8fcf 100644
--- a/drivers/gpu/drm/xe/xe_wa_oob.rules
+++ b/drivers/gpu/drm/xe/xe_wa_oob.rules
@@ -66,6 +66,10 @@ no_media_l3	MEDIA_VERSION(3000)
 		MEDIA_VERSION_RANGE(1300, 3000)
 		MEDIA_VERSION(3002)
 		GRAPHICS_VERSION(3003)
+14020001231	GRAPHICS_VERSION_RANGE(2001,2004), FUNC(xe_rtp_match_psmi_enabled)
+		MEDIA_VERSION(2000), FUNC(xe_rtp_match_psmi_enabled)
+		MEDIA_VERSION(3000), FUNC(xe_rtp_match_psmi_enabled)
+		MEDIA_VERSION(3002), FUNC(xe_rtp_match_psmi_enabled)
 
 # SoC workaround - currently applies to all platforms with the following
 # primary GT GMDID

-- 
2.50.1