[PATCH 16/26] drm/amd/powerplay: add suspend and resume function for smu
Huang Rui
ray.huang at amd.com
Mon Feb 25 12:12:22 UTC 2019
From: Likun Gao <Likun.Gao at amd.com>
Functional the function of smu suspend and resume.
Modified the function of smu_smc_table_hw_init to make it useful for smu
resume.
Signed-off-by: Likun Gao <Likun.Gao at amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng at amd.com>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 156 ++++++++++++-------------
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 7 +-
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 27 +++--
3 files changed, 93 insertions(+), 97 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index fa0af71..f6e659e 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -533,7 +533,8 @@ static int smu_fini_fb_allocations(struct smu_context *smu)
return 0;
}
-static int smu_smc_table_hw_init(struct smu_context *smu)
+static int smu_smc_table_hw_init(struct smu_context *smu,
+ bool initialize)
{
int ret;
@@ -545,54 +546,56 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
if (ret)
return ret;
- ret = smu_read_pptable_from_vbios(smu);
- if (ret)
- return ret;
+ if (initialize) {
+ ret = smu_read_pptable_from_vbios(smu);
+ if (ret)
+ return ret;
- /* get boot_values from vbios to set revision, gfxclk, and etc. */
- ret = smu_get_vbios_bootup_values(smu);
- if (ret)
- return ret;
+ /* get boot_values from vbios to set revision, gfxclk, and etc. */
+ ret = smu_get_vbios_bootup_values(smu);
+ if (ret)
+ return ret;
- ret = smu_get_clk_info_from_vbios(smu);
- if (ret)
- return ret;
+ ret = smu_get_clk_info_from_vbios(smu);
+ if (ret)
+ return ret;
- /*
- * check if the format_revision in vbios is up to pptable header
- * version, and the structure size is not 0.
- */
- ret = smu_get_clk_info_from_vbios(smu);
- if (ret)
- return ret;
+ /*
+ * check if the format_revision in vbios is up to pptable header
+ * version, and the structure size is not 0.
+ */
+ ret = smu_get_clk_info_from_vbios(smu);
+ if (ret)
+ return ret;
- ret = smu_check_pptable(smu);
- if (ret)
- return ret;
+ ret = smu_check_pptable(smu);
+ if (ret)
+ return ret;
- /*
- * allocate vram bos to store smc table contents.
- */
- ret = smu_init_fb_allocations(smu);
- if (ret)
- return ret;
+ /*
+ * allocate vram bos to store smc table contents.
+ */
+ ret = smu_init_fb_allocations(smu);
+ if (ret)
+ return ret;
- /*
- * Parse pptable format and fill PPTable_t smc_pptable to
- * smu_table_context structure. And read the smc_dpm_table from vbios,
- * then fill it into smc_pptable.
- */
- ret = smu_parse_pptable(smu);
- if (ret)
- return ret;
+ /*
+ * Parse pptable format and fill PPTable_t smc_pptable to
+ * smu_table_context structure. And read the smc_dpm_table from vbios,
+ * then fill it into smc_pptable.
+ */
+ ret = smu_parse_pptable(smu);
+ if (ret)
+ return ret;
- /*
- * Send msg GetDriverIfVersion to check if the return value is equal
- * with DRIVER_IF_VERSION of smc header.
- */
- ret = smu_check_fw_version(smu);
- if (ret)
- return ret;
+ /*
+ * Send msg GetDriverIfVersion to check if the return value is equal
+ * with DRIVER_IF_VERSION of smc header.
+ */
+ ret = smu_check_fw_version(smu);
+ if (ret)
+ return ret;
+ }
/*
* Copy pptable bo in the vram to smc with SMU MSGs such as
@@ -628,25 +631,29 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
* gfxclk, memclk, dcefclk, and etc. And enable the DPM feature for each
* type of clks.
*/
- ret = smu_populate_smc_pptable(smu);
- if (ret)
- return ret;
+ if (initialize) {
+ ret = smu_populate_smc_pptable(smu);
+ if (ret)
+ return ret;
- ret = smu_init_max_sustainable_clocks(smu);
- if (ret)
- return ret;
+ ret = smu_init_max_sustainable_clocks(smu);
+ if (ret)
+ return ret;
+ }
- ret = smu_set_od8_default_settings(smu);
+ ret = smu_set_od8_default_settings(smu, initialize);
if (ret)
return ret;
- ret = smu_populate_umd_state_clk(smu);
- if (ret)
- return ret;
+ if (initialize) {
+ ret = smu_populate_umd_state_clk(smu);
+ if (ret)
+ return ret;
- ret = smu_get_power_limit(smu, &smu->default_power_limit, false);
- if (ret)
- return ret;
+ ret = smu_get_power_limit(smu, &smu->default_power_limit, false);
+ if (ret)
+ return ret;
+ }
/*
* Set PMSTATUSLOG table bo address with SetToolsDramAddr MSG for tools.
@@ -718,6 +725,7 @@ static int smu_free_memory_pool(struct smu_context *smu)
return ret;
}
+
static int smu_hw_init(void *handle)
{
int ret;
@@ -745,7 +753,7 @@ static int smu_hw_init(void *handle)
if (ret)
goto failed;
- ret = smu_smc_table_hw_init(smu);
+ ret = smu_smc_table_hw_init(smu, true);
if (ret)
goto failed;
@@ -838,11 +846,19 @@ int smu_reset(struct smu_context *smu)
static int smu_suspend(void *handle)
{
+ int ret;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ struct smu_context *smu = &adev->smu;
if (!is_support_sw_smu(adev))
return -EINVAL;
+ ret = smu_feature_disable_all(smu);
+ if (ret)
+ return ret;
+
+ smu->watermarks_bitmap &= ~(WATERMARKS_LOADED);
+
return 0;
}
@@ -857,37 +873,13 @@ static int smu_resume(void *handle)
pr_info("SMU is resuming...\n");
- if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
- ret = smu_load_microcode(smu);
- if (ret)
- return ret;
- }
-
- ret = smu_check_fw_status(smu);
- if (ret) {
- pr_err("SMC firmware status is not correct\n");
- return ret;
- }
-
mutex_lock(&smu->mutex);
- ret = smu_set_tool_table_location(smu);
- if (ret)
- goto failed;
-
- ret = smu_write_pptable(smu);
+ ret = smu_smc_table_hw_init(smu, false);
if (ret)
goto failed;
- ret = smu_write_watermarks_table(smu);
- if (ret)
- goto failed;
-
- ret = smu_set_last_dcef_min_deep_sleep_clk(smu);
- if (ret)
- goto failed;
-
- ret = smu_system_features_control(smu, true);
+ ret = smu_start_thermal_control(smu);
if (ret)
goto failed;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index dde3c93..87d3320 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -523,7 +523,8 @@ struct smu_funcs
int (*notify_smu_enable_pwe)(struct smu_context *smu);
int (*set_watermarks_for_clock_ranges)(struct smu_context *smu,
struct dm_pp_wm_sets_with_clock_ranges_soc15 *clock_ranges);
- int (*set_od8_default_settings)(struct smu_context *smu);
+ int (*set_od8_default_settings)(struct smu_context *smu,
+ bool initialize);
int (*get_activity_monitor_coeff)(struct smu_context *smu,
uint8_t *table,
uint16_t workload_type);
@@ -592,8 +593,8 @@ struct smu_funcs
((smu)->funcs->system_features_control ? (smu)->funcs->system_features_control((smu), (en)) : 0)
#define smu_init_max_sustainable_clocks(smu) \
((smu)->funcs->init_max_sustainable_clocks ? (smu)->funcs->init_max_sustainable_clocks((smu)) : 0)
-#define smu_set_od8_default_settings(smu) \
- ((smu)->funcs->set_od8_default_settings ? (smu)->funcs->set_od8_default_settings((smu)) : 0)
+#define smu_set_od8_default_settings(smu, initialize) \
+ ((smu)->funcs->set_od8_default_settings ? (smu)->funcs->set_od8_default_settings((smu), (initialize)) : 0)
#define smu_update_od8_settings(smu, index, value) \
((smu)->funcs->update_od8_settings ? (smu)->funcs->update_od8_settings((smu), (index), (value)) : 0)
#define smu_get_current_rpm(smu, speed) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index ea5de6e..3faf8fa 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1437,26 +1437,29 @@ static uint32_t smu_v11_0_dpm_get_mclk(struct smu_context *smu, bool low)
return (mem_clk * 100);
}
-static int smu_v11_0_set_od8_default_settings(struct smu_context *smu)
+static int smu_v11_0_set_od8_default_settings(struct smu_context *smu,
+ bool initialize)
{
struct smu_table_context *table_context = &smu->smu_table;
int ret;
- if (table_context->overdrive_table)
- return -EINVAL;
+ if (initialize) {
+ if (table_context->overdrive_table)
+ return -EINVAL;
- table_context->overdrive_table = kzalloc(sizeof(OverDriveTable_t), GFP_KERNEL);
+ table_context->overdrive_table = kzalloc(sizeof(OverDriveTable_t), GFP_KERNEL);
- if (!table_context->overdrive_table)
- return -ENOMEM;
+ if (!table_context->overdrive_table)
+ return -ENOMEM;
- ret = smu_update_table(smu, TABLE_OVERDRIVE, table_context->overdrive_table, false);
- if (ret) {
- pr_err("Failed to export over drive table!\n");
- return ret;
- }
+ ret = smu_update_table(smu, TABLE_OVERDRIVE, table_context->overdrive_table, false);
+ if (ret) {
+ pr_err("Failed to export over drive table!\n");
+ return ret;
+ }
- smu_set_default_od8_settings(smu);
+ smu_set_default_od8_settings(smu);
+ }
ret = smu_update_table(smu, TABLE_OVERDRIVE, table_context->overdrive_table, true);
if (ret) {
--
2.7.4
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