From 5a8c292f74c2b0dc84653c7b59323368a849a3ad Mon Sep 17 00:00:00 2001
From: Michal Wajdeczko <michal.wajdeczko@intel.com>
Date: Fri, 19 Apr 2024 14:35:42 +0200
Subject: [PATCH] drm/xe/guc: Update VF configuration KLVs definitions
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GuC firmware specification says that maximum value for the execution
quantum KLV is 100s and anything exceeding that will be clamped.
The same limitation applies to the preemption timeout KLV.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419123543.270-2-michal.wajdeczko@intel.com
---
drivers/gpu/drm/xe/abi/guc_klvs_abi.h | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
index 511cf974d585d..e53ffaee2fcde 100644
--- a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
+++ b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
@@ -201,7 +201,11 @@ enum {
* it to take effect. Such cases might typically happen on a 1PF+1VF
* Virtualization config enabled for heavier workloads like AI/ML.
*
+ * The max value for this KLV is 100 seconds, anything exceeding that
+ * will be clamped to the max.
+ *
* :0: infinite exec quantum (default)
+ * :100000: maximum exec quantum (100000ms == 100s)
*
* _`GUC_KLV_VF_CFG_PREEMPT_TIMEOUT` : 0x8A02
* This config sets the VF-preemption-timeout in microseconds.
@@ -219,7 +223,11 @@ enum {
* on a 1PF+1VF Virtualization config enabled for heavier workloads like
* AI/ML.
*
+ * The max value for this KLV is 100 seconds, anything exceeding that
+ * will be clamped to the max.
+ *
* :0: no preemption timeout (default)
+ * :100000000: maximum preemption timeout (100000000us == 100s)
*
* _`GUC_KLV_VF_CFG_THRESHOLD_CAT_ERR` : 0x8A03
* This config sets threshold for CAT errors caused by the VF.
@@ -291,9 +299,11 @@ enum {
#define GUC_KLV_VF_CFG_EXEC_QUANTUM_KEY 0x8a01
#define GUC_KLV_VF_CFG_EXEC_QUANTUM_LEN 1u
+#define GUC_KLV_VF_CFG_EXEC_QUANTUM_MAX_VALUE 100000u
-#define GUC_KLV_VF_CFG_PREEMPT_TIMEOUT_KEY 0x8a02
-#define GUC_KLV_VF_CFG_PREEMPT_TIMEOUT_LEN 1u
+#define GUC_KLV_VF_CFG_PREEMPT_TIMEOUT_KEY 0x8a02
+#define GUC_KLV_VF_CFG_PREEMPT_TIMEOUT_LEN 1u
+#define GUC_KLV_VF_CFG_PREEMPT_TIMEOUT_MAX_VALUE 100000000u
#define GUC_KLV_VF_CFG_THRESHOLD_CAT_ERR_KEY 0x8a03
#define GUC_KLV_VF_CFG_THRESHOLD_CAT_ERR_LEN 1u
--
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