* [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get power limit
@ 2024-03-13 10:59 Ma Jun
2024-03-13 10:59 ` [PATCH 2/2] drm/amdgpu/pm: Check the validity of overdiver " Ma Jun
2024-03-13 13:21 ` [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get " Alex Deucher
0 siblings, 2 replies; 3+ messages in thread
From: Ma Jun @ 2024-03-13 10:59 UTC (permalink / raw)
To: amd-gfx
Cc: Kenneth.Feng, Alexander.Deucher, kevinyang.wang, Ma Jun,
Yin Zhenguo, Lazar Lijo
Because powerplay_table initialization is skipped under
sriov case, We check and set default lower and upper OD
value if powerplay_table is NULL.
Fixes: 7968e9748fbb ("drm/amdgpu/pm: Fix the power1_min_cap value")
Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reported-by: Yin Zhenguo <zhenguo.yin@amd.com>
Suggested-by: Lazar Lijo <lijo.lazar@amd.com>
Suggested-by: Alex Deucher <Alexander.Deucher@amd.com>
---
.../gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 14 ++++++++------
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 16 +++++++++-------
.../drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 14 ++++++++------
.../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 14 ++++++++------
.../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 14 ++++++++------
5 files changed, 41 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index 1d96eb274d72..a406372e79d8 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -1286,7 +1286,7 @@ static int arcturus_get_power_limit(struct smu_context *smu,
struct smu_11_0_powerplay_table *powerplay_table =
(struct smu_11_0_powerplay_table *)smu->smu_table.power_play_table;
PPTable_t *pptable = smu->smu_table.driver_pptable;
- uint32_t power_limit, od_percent_upper, od_percent_lower;
+ uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
if (smu_v11_0_get_current_power_limit(smu, &power_limit)) {
/* the last hope to figure out the ppt limit */
@@ -1303,12 +1303,14 @@ static int arcturus_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
- if (smu->od_enabled)
- od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
- else
- od_percent_upper = 0;
+ if (powerplay_table) {
+ if (smu->od_enabled)
+ od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ else
+ od_percent_upper = 0;
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ }
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index ed189a3878eb..65bba5fc2335 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2339,7 +2339,7 @@ static int navi10_get_power_limit(struct smu_context *smu,
(struct smu_11_0_powerplay_table *)smu->smu_table.power_play_table;
struct smu_11_0_overdrive_table *od_settings = smu->od_settings;
PPTable_t *pptable = smu->smu_table.driver_pptable;
- uint32_t power_limit, od_percent_upper, od_percent_lower;
+ uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
if (smu_v11_0_get_current_power_limit(smu, &power_limit)) {
/* the last hope to figure out the ppt limit */
@@ -2356,13 +2356,15 @@ static int navi10_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
- if (smu->od_enabled &&
- navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT))
- od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
- else
- od_percent_upper = 0;
+ if (powerplay_table) {
+ if (smu->od_enabled &&
+ navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT))
+ od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ else
+ od_percent_upper = 0;
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ }
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index a405424dd699..9371e6e79c56 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -625,7 +625,7 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
{
struct smu_11_0_7_powerplay_table *powerplay_table =
(struct smu_11_0_7_powerplay_table *)smu->smu_table.power_play_table;
- uint32_t power_limit, od_percent_upper, od_percent_lower;
+ uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
uint16_t *table_member;
GET_PPTABLE_MEMBER(SocketPowerLimitAc, &table_member);
@@ -640,12 +640,14 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
- if (smu->od_enabled)
- od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
- else
- od_percent_upper = 0;
+ if (powerplay_table) {
+ if (smu->od_enabled)
+ od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
+ else
+ od_percent_upper = 0;
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
+ }
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
index 6a501d2661f5..f1e388c2863a 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -2356,7 +2356,7 @@ static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
(struct smu_13_0_0_powerplay_table *)table_context->power_play_table;
PPTable_t *pptable = table_context->driver_pptable;
SkuTable_t *skutable = &pptable->SkuTable;
- uint32_t power_limit, od_percent_upper, od_percent_lower;
+ uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
uint32_t msg_limit = skutable->MsgLimits.Power[PPT_THROTTLER_PPT0][POWER_SOURCE_AC];
if (smu_v13_0_get_current_power_limit(smu, &power_limit))
@@ -2369,12 +2369,14 @@ static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
- if (smu->od_enabled)
- od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
- else
- od_percent_upper = 0;
+ if (powerplay_table) {
+ if (smu->od_enabled)
+ od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+ else
+ od_percent_upper = 0;
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+ }
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
index 3dc7b60cb075..8abf0a772e6b 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
@@ -2320,7 +2320,7 @@ static int smu_v13_0_7_get_power_limit(struct smu_context *smu,
(struct smu_13_0_7_powerplay_table *)table_context->power_play_table;
PPTable_t *pptable = table_context->driver_pptable;
SkuTable_t *skutable = &pptable->SkuTable;
- uint32_t power_limit, od_percent_upper, od_percent_lower;
+ uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
uint32_t msg_limit = skutable->MsgLimits.Power[PPT_THROTTLER_PPT0][POWER_SOURCE_AC];
if (smu_v13_0_get_current_power_limit(smu, &power_limit))
@@ -2333,12 +2333,14 @@ static int smu_v13_0_7_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
- if (smu->od_enabled)
- od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
- else
- od_percent_upper = 0;
+ if (powerplay_table) {
+ if (smu->od_enabled)
+ od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
+ else
+ od_percent_upper = 0;
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
+ }
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);
--
2.34.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 2/2] drm/amdgpu/pm: Check the validity of overdiver power limit
2024-03-13 10:59 [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get power limit Ma Jun
@ 2024-03-13 10:59 ` Ma Jun
2024-03-13 13:21 ` [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get " Alex Deucher
1 sibling, 0 replies; 3+ messages in thread
From: Ma Jun @ 2024-03-13 10:59 UTC (permalink / raw)
To: amd-gfx; +Cc: Kenneth.Feng, Alexander.Deucher, kevinyang.wang, Ma Jun,
Lazar Lijo
Check the validity of overdriver power limit before using it.
Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Suggested-by: Lazar Lijo <lijo.lazar@amd.com>
Suggested-by: Alex Deucher <Alexander.Deucher@amd.com>
---
.../gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 11 +++++----
.../gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 9 ++++----
.../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 23 +++++++++++--------
.../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 10 ++++----
.../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 10 ++++----
5 files changed, 37 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index a406372e79d8..40ba7227cca5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -1285,6 +1285,7 @@ static int arcturus_get_power_limit(struct smu_context *smu,
{
struct smu_11_0_powerplay_table *powerplay_table =
(struct smu_11_0_powerplay_table *)smu->smu_table.power_play_table;
+ struct smu_11_0_overdrive_table *od_settings = smu->od_settings;
PPTable_t *pptable = smu->smu_table.driver_pptable;
uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
@@ -1304,12 +1305,14 @@ static int arcturus_get_power_limit(struct smu_context *smu,
*default_power_limit = power_limit;
if (powerplay_table) {
- if (smu->od_enabled)
+ if (smu->od_enabled &&
+ od_settings->cap[SMU_11_0_ODCAP_POWER_LIMIT]) {
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
- else
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ } else if (od_settings->cap[SMU_11_0_ODCAP_POWER_LIMIT]) {
od_percent_upper = 0;
-
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ }
}
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index 65bba5fc2335..836b1df79928 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2358,12 +2358,13 @@ static int navi10_get_power_limit(struct smu_context *smu,
if (powerplay_table) {
if (smu->od_enabled &&
- navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT))
+ navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT)) {
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
- else
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ } else if (navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT)) {
od_percent_upper = 0;
-
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
+ }
}
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index 9371e6e79c56..86315e1cf81b 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -617,6 +617,12 @@ static uint32_t sienna_cichlid_get_throttler_status_locked(struct smu_context *s
return throttler_status;
}
+static bool sienna_cichlid_is_od_feature_supported(struct smu_11_0_7_overdrive_table *od_table,
+ enum SMU_11_0_7_ODFEATURE_CAP cap)
+{
+ return od_table->cap[cap];
+}
+
static int sienna_cichlid_get_power_limit(struct smu_context *smu,
uint32_t *current_power_limit,
uint32_t *default_power_limit,
@@ -625,6 +631,7 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
{
struct smu_11_0_7_powerplay_table *powerplay_table =
(struct smu_11_0_7_powerplay_table *)smu->smu_table.power_play_table;
+ struct smu_11_0_7_overdrive_table *od_settings = smu->od_settings;
uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
uint16_t *table_member;
@@ -641,12 +648,14 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
*default_power_limit = power_limit;
if (powerplay_table) {
- if (smu->od_enabled)
+ if (smu->od_enabled &&
+ sienna_cichlid_is_od_feature_supported(od_settings, SMU_11_0_7_ODCAP_POWER_LIMIT)) {
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
- else
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
+ } else if ((sienna_cichlid_is_od_feature_supported(od_settings, SMU_11_0_7_ODCAP_POWER_LIMIT))) {
od_percent_upper = 0;
-
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
+ }
}
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
@@ -1252,12 +1261,6 @@ static bool sienna_cichlid_is_support_fine_grained_dpm(struct smu_context *smu,
return dpm_desc->SnapToDiscrete == 0;
}
-static bool sienna_cichlid_is_od_feature_supported(struct smu_11_0_7_overdrive_table *od_table,
- enum SMU_11_0_7_ODFEATURE_CAP cap)
-{
- return od_table->cap[cap];
-}
-
static void sienna_cichlid_get_od_setting_range(struct smu_11_0_7_overdrive_table *od_table,
enum SMU_11_0_7_ODSETTING_ID setting,
uint32_t *min, uint32_t *max)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
index f1e388c2863a..b64057032548 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -2370,12 +2370,14 @@ static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
*default_power_limit = power_limit;
if (powerplay_table) {
- if (smu->od_enabled)
+ if (smu->od_enabled &&
+ smu_v13_0_0_is_od_feature_supported(smu, PP_OD_FEATURE_PPT_BIT)) {
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
- else
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+ } else if (smu_v13_0_0_is_od_feature_supported(smu, PP_OD_FEATURE_PPT_BIT)) {
od_percent_upper = 0;
-
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+ }
}
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
index 8abf0a772e6b..7318964f1f14 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
@@ -2334,12 +2334,14 @@ static int smu_v13_0_7_get_power_limit(struct smu_context *smu,
*default_power_limit = power_limit;
if (powerplay_table) {
- if (smu->od_enabled)
+ if (smu->od_enabled &&
+ (smu_v13_0_7_is_od_feature_supported(smu, PP_OD_FEATURE_PPT_BIT))) {
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
- else
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
+ } else if (smu_v13_0_7_is_od_feature_supported(smu, PP_OD_FEATURE_PPT_BIT)) {
od_percent_upper = 0;
-
- od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
+ od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
+ }
}
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
--
2.34.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get power limit
2024-03-13 10:59 [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get power limit Ma Jun
2024-03-13 10:59 ` [PATCH 2/2] drm/amdgpu/pm: Check the validity of overdiver " Ma Jun
@ 2024-03-13 13:21 ` Alex Deucher
1 sibling, 0 replies; 3+ messages in thread
From: Alex Deucher @ 2024-03-13 13:21 UTC (permalink / raw)
To: Ma Jun
Cc: amd-gfx, Kenneth.Feng, Alexander.Deucher, kevinyang.wang,
Yin Zhenguo, Lazar Lijo
On Wed, Mar 13, 2024 at 7:07 AM Ma Jun <Jun.Ma2@amd.com> wrote:
>
> Because powerplay_table initialization is skipped under
> sriov case, We check and set default lower and upper OD
> value if powerplay_table is NULL.
>
> Fixes: 7968e9748fbb ("drm/amdgpu/pm: Fix the power1_min_cap value")
> Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
> Reported-by: Yin Zhenguo <zhenguo.yin@amd.com>
> Suggested-by: Lazar Lijo <lijo.lazar@amd.com>
> Suggested-by: Alex Deucher <Alexander.Deucher@amd.com>
Series is:
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
> ---
> .../gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 14 ++++++++------
> drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 16 +++++++++-------
> .../drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 14 ++++++++------
> .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 14 ++++++++------
> .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 14 ++++++++------
> 5 files changed, 41 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
> index 1d96eb274d72..a406372e79d8 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
> @@ -1286,7 +1286,7 @@ static int arcturus_get_power_limit(struct smu_context *smu,
> struct smu_11_0_powerplay_table *powerplay_table =
> (struct smu_11_0_powerplay_table *)smu->smu_table.power_play_table;
> PPTable_t *pptable = smu->smu_table.driver_pptable;
> - uint32_t power_limit, od_percent_upper, od_percent_lower;
> + uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
>
> if (smu_v11_0_get_current_power_limit(smu, &power_limit)) {
> /* the last hope to figure out the ppt limit */
> @@ -1303,12 +1303,14 @@ static int arcturus_get_power_limit(struct smu_context *smu,
> if (default_power_limit)
> *default_power_limit = power_limit;
>
> - if (smu->od_enabled)
> - od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> - else
> - od_percent_upper = 0;
> + if (powerplay_table) {
> + if (smu->od_enabled)
> + od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> + else
> + od_percent_upper = 0;
>
> - od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> + od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> + }
>
> dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
> od_percent_upper, od_percent_lower, power_limit);
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
> index ed189a3878eb..65bba5fc2335 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
> @@ -2339,7 +2339,7 @@ static int navi10_get_power_limit(struct smu_context *smu,
> (struct smu_11_0_powerplay_table *)smu->smu_table.power_play_table;
> struct smu_11_0_overdrive_table *od_settings = smu->od_settings;
> PPTable_t *pptable = smu->smu_table.driver_pptable;
> - uint32_t power_limit, od_percent_upper, od_percent_lower;
> + uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
>
> if (smu_v11_0_get_current_power_limit(smu, &power_limit)) {
> /* the last hope to figure out the ppt limit */
> @@ -2356,13 +2356,15 @@ static int navi10_get_power_limit(struct smu_context *smu,
> if (default_power_limit)
> *default_power_limit = power_limit;
>
> - if (smu->od_enabled &&
> - navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT))
> - od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> - else
> - od_percent_upper = 0;
> + if (powerplay_table) {
> + if (smu->od_enabled &&
> + navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT))
> + od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> + else
> + od_percent_upper = 0;
>
> - od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> + od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
> + }
>
> dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
> od_percent_upper, od_percent_lower, power_limit);
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
> index a405424dd699..9371e6e79c56 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
> @@ -625,7 +625,7 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
> {
> struct smu_11_0_7_powerplay_table *powerplay_table =
> (struct smu_11_0_7_powerplay_table *)smu->smu_table.power_play_table;
> - uint32_t power_limit, od_percent_upper, od_percent_lower;
> + uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
> uint16_t *table_member;
>
> GET_PPTABLE_MEMBER(SocketPowerLimitAc, &table_member);
> @@ -640,12 +640,14 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
> if (default_power_limit)
> *default_power_limit = power_limit;
>
> - if (smu->od_enabled)
> - od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
> - else
> - od_percent_upper = 0;
> + if (powerplay_table) {
> + if (smu->od_enabled)
> + od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
> + else
> + od_percent_upper = 0;
>
> - od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
> + od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
> + }
>
> dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
> od_percent_upper, od_percent_lower, power_limit);
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
> index 6a501d2661f5..f1e388c2863a 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
> @@ -2356,7 +2356,7 @@ static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
> (struct smu_13_0_0_powerplay_table *)table_context->power_play_table;
> PPTable_t *pptable = table_context->driver_pptable;
> SkuTable_t *skutable = &pptable->SkuTable;
> - uint32_t power_limit, od_percent_upper, od_percent_lower;
> + uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
> uint32_t msg_limit = skutable->MsgLimits.Power[PPT_THROTTLER_PPT0][POWER_SOURCE_AC];
>
> if (smu_v13_0_get_current_power_limit(smu, &power_limit))
> @@ -2369,12 +2369,14 @@ static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
> if (default_power_limit)
> *default_power_limit = power_limit;
>
> - if (smu->od_enabled)
> - od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
> - else
> - od_percent_upper = 0;
> + if (powerplay_table) {
> + if (smu->od_enabled)
> + od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
> + else
> + od_percent_upper = 0;
>
> - od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
> + od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
> + }
>
> dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
> od_percent_upper, od_percent_lower, power_limit);
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
> index 3dc7b60cb075..8abf0a772e6b 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
> @@ -2320,7 +2320,7 @@ static int smu_v13_0_7_get_power_limit(struct smu_context *smu,
> (struct smu_13_0_7_powerplay_table *)table_context->power_play_table;
> PPTable_t *pptable = table_context->driver_pptable;
> SkuTable_t *skutable = &pptable->SkuTable;
> - uint32_t power_limit, od_percent_upper, od_percent_lower;
> + uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
> uint32_t msg_limit = skutable->MsgLimits.Power[PPT_THROTTLER_PPT0][POWER_SOURCE_AC];
>
> if (smu_v13_0_get_current_power_limit(smu, &power_limit))
> @@ -2333,12 +2333,14 @@ static int smu_v13_0_7_get_power_limit(struct smu_context *smu,
> if (default_power_limit)
> *default_power_limit = power_limit;
>
> - if (smu->od_enabled)
> - od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
> - else
> - od_percent_upper = 0;
> + if (powerplay_table) {
> + if (smu->od_enabled)
> + od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
> + else
> + od_percent_upper = 0;
>
> - od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
> + od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
> + }
>
> dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
> od_percent_upper, od_percent_lower, power_limit);
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-03-13 13:21 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-03-13 10:59 [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get power limit Ma Jun
2024-03-13 10:59 ` [PATCH 2/2] drm/amdgpu/pm: Check the validity of overdiver " Ma Jun
2024-03-13 13:21 ` [PATCH 1/2] drm/amdgpu/pm: Fix NULL pointer dereference when get " Alex Deucher
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