Instead of disabling and reenabling it later.
Change-Id: I90775202178f3b7695f42f39ce240bbfd51a1346
Signed-off-by: Evan Quan <evan.q...@amd.com>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 72 ++++++++++------------
1 file changed, 31 insertions(+), 41 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index d9a9d9723be1..b645bba1d201 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -110,28 +110,32 @@ static int smu_feature_update_enable_state(struct
smu_context *smu,
bool enabled)
{
struct smu_feature *feature = &smu->smu_feature;
- uint32_t feature_low = 0, feature_high = 0;
int ret = 0;
- feature_low = (feature_mask >> 0 ) & 0xffffffff;
- feature_high = (feature_mask >> 32) & 0xffffffff;
-
if (enabled) {
- ret = smu_send_smc_msg_with_param(smu,
SMU_MSG_EnableSmuFeaturesLow,
- feature_low, NULL);
+ ret = smu_send_smc_msg_with_param(smu,
+ SMU_MSG_EnableSmuFeaturesLow,
+ lower_32_bits(feature_mask),
+ NULL);
if (ret)
return ret;
- ret = smu_send_smc_msg_with_param(smu,
SMU_MSG_EnableSmuFeaturesHigh,
- feature_high, NULL);
+ ret = smu_send_smc_msg_with_param(smu,
+ SMU_MSG_EnableSmuFeaturesHigh,
+ upper_32_bits(feature_mask),
+ NULL);
if (ret)
return ret;
} else {
- ret = smu_send_smc_msg_with_param(smu,
SMU_MSG_DisableSmuFeaturesLow,
- feature_low, NULL);
+ ret = smu_send_smc_msg_with_param(smu,
+ SMU_MSG_DisableSmuFeaturesLow,
+ lower_32_bits(feature_mask),
+ NULL);
if (ret)
return ret;
- ret = smu_send_smc_msg_with_param(smu,
SMU_MSG_DisableSmuFeaturesHigh,
- feature_high, NULL);
+ ret = smu_send_smc_msg_with_param(smu,
+
SMU_MSG_DisableSmuFeaturesHigh,
+ upper_32_bits(feature_mask),
+ NULL);
if (ret)
return ret;
}
@@ -1305,6 +1309,7 @@ static int smu_hw_init(void *handle)
static int smu_disable_dpms(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
+ uint64_t features_to_disable;
int ret = 0;
bool use_baco = !smu->is_apu &&
((adev->in_gpu_reset &&
@@ -1336,36 +1341,21 @@ static int smu_disable_dpms(struct smu_context *smu)
return 0;
/*
- * Disable all enabled SMU features.
- * This should be handled in SMU FW, as a backup
- * driver can issue call to SMU FW until sequence
- * in SMU FW is operational.
- */
- ret = smu_system_features_control(smu, false);
- if (ret) {
- pr_err("Failed to disable smu features.\n");
- return ret;
- }
-
- /*
- * For baco, need to leave BACO feature enabled
- *
- * Correct the way for checking whether SMU_FEATURE_BACO_BIT
- * is supported.
- *
- * Since 'smu_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT)' will
- * always return false as the 'smu_system_features_control(smu, false)'
- * was just issued above which disabled all SMU features.
- *
- * Thus 'smu_feature_get_index(smu, SMU_FEATURE_BACO_BIT)' is used
- * now for the checking.
+ * For gpu reset, runpm and hibernation through BACO,
+ * BACO feature has to be kept enabled.
*/
- if (use_baco && (smu_feature_get_index(smu, SMU_FEATURE_BACO_BIT) >=
0)) {
- ret = smu_feature_set_enabled(smu, SMU_FEATURE_BACO_BIT, true);
- if (ret) {
- pr_warn("set BACO feature enabled failed, return %d\n",
ret);
- return ret;
- }
+ if (use_baco && smu_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT)) {
+ features_to_disable = U64_MAX &
+ ~(1ULL << smu_feature_get_index(smu,
SMU_FEATURE_BACO_BIT));
+ ret = smu_feature_update_enable_state(smu,
+ features_to_disable,
+ 0);
+ if (ret)
+ pr_err("Failed to disable smu features except BACO.\n");
+ } else {
+ ret = smu_system_features_control(smu, false);
+ if (ret)
+ pr_err("Failed to disable smu features.\n");
}
if (adev->asic_type >= CHIP_NAVI10 &&
--
2.27.0
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