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authorMa Jun2024-03-11 14:38:34 +0800
committerAlex Deucher2024-03-20 13:12:57 -0400
commit08ae9ef829b8055c2fdc8cfee37510c1f4721a07 (patch)
tree813f9984a9e959548cce5f7f338d7c09c397f47e /drivers
parent56b30ac84c517eefcfd5384339fee5d8a675f811 (diff)
drm/amdgpu/pm: Fix NULL pointer dereference when get power limit
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> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c14
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c16
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c14
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c14
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c14
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 e2ad2b972ab0..395718b48131 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 9b80f18ea6c3..7873f024d429 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);