Add support for unique_id and serial_number, as these are now
the same value, and will be for future ASICs as well.
v2: Explicitly create unique_id only for VG10/20/ARC
v3: Change set_unique_id to get_unique_id for clarity
Signed-off-by: Kent Russell <kent.russ...@amd.com>
Change-Id: I3b036a38b19cd84025399b0706b2dad9b7aff713
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 4 ++-
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 2 ++
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c | 32 +++++++++++++++++++
.../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 1 +
drivers/gpu/drm/amd/powerplay/smu_internal.h | 2 ++
5 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index b0dff9ecfb88..b2cdc8a1268f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -1940,7 +1940,9 @@ static int default_attr_update(struct amdgpu_device
*adev, struct amdgpu_device_
if (adev->flags & AMD_IS_APU)
*states = ATTR_STATE_UNSUPPORTED;
} else if (DEVICE_ATTR_IS(unique_id)) {
- if (!adev->unique_id)
+ if (asic_type != CHIP_VEGA10 &&
+ asic_type != CHIP_VEGA20 &&
+ asic_type != CHIP_ARCTURUS)
*states = ATTR_STATE_UNSUPPORTED;
} else if (DEVICE_ATTR_IS(pp_features)) {
if (adev->flags & AMD_IS_APU || asic_type < CHIP_VEGA10)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 5294aa7cdde1..847502faca90 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -793,6 +793,8 @@ static int smu_late_init(void *handle)
if (!smu->pm_enabled)
return 0;
+ smu_get_unique_id(smu);
+
smu_handle_task(&adev->smu,
smu->smu_dpm.dpm_level,
AMD_PP_TASK_COMPLETE_INIT,
diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index d66ac7457574..df7b408319f7 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -2262,6 +2262,37 @@ static void arcturus_i2c_eeprom_control_fini(struct
i2c_adapter *control)
i2c_del_adapter(control);
}
+static void arcturus_get_unique_id(struct smu_context *smu)
+{
+ struct amdgpu_device *adev = smu->adev;
+ uint32_t top32, bottom32, smu_version, size;
+ char sn[16];
+ uint64_t id;
+
+ if (smu_get_smc_version(smu, NULL, &smu_version)) {
+ pr_warn("Failed to get smu version, cannot get unique_id or
serial_number\n");
+ return;
+ }
+
+ /* PPSMC_MSG_ReadSerial* is supported by 54.23.0 and onwards */
+ if (smu_version < 0x361700) {
+ pr_warn("ReadSerial is only supported by PMFW 54.23.0 and
onwards\n");
+ return;
+ }
+
+ /* Get the SN to turn into a Unique ID */
+ smu_send_smc_msg(smu, SMU_MSG_ReadSerialNumTop32, &top32);
+ smu_send_smc_msg(smu, SMU_MSG_ReadSerialNumBottom32, &bottom32);
+
+ id = ((uint64_t)bottom32 << 32) | top32;
+ adev->unique_id = id;
+ /* For Arcturus-and-later, unique_id == serial_number, so convert it to
a
+ * 16-digit HEX string for convenience and backwards-compatibility
+ */
+ size = sprintf(sn, "%llx", id);
+ memcpy(adev->serial, &sn, size);
+}
+
static bool arcturus_is_baco_supported(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
@@ -2416,6 +2447,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
.dpm_set_uvd_enable = arcturus_dpm_set_uvd_enable,
.i2c_eeprom_init = arcturus_i2c_eeprom_control_init,
.i2c_eeprom_fini = arcturus_i2c_eeprom_control_fini,
+ .get_unique_id = arcturus_get_unique_id,
.init_microcode = smu_v11_0_init_microcode,
.load_microcode = smu_v11_0_load_microcode,
.init_smc_tables = smu_v11_0_init_smc_tables,
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 5bb1ac821aeb..13fc5773ba45 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -495,6 +495,7 @@ struct pptable_funcs {
int (*update_pcie_parameters)(struct smu_context *smu, uint32_t
pcie_gen_cap, uint32_t pcie_width_cap);
int (*i2c_eeprom_init)(struct i2c_adapter *control);
void (*i2c_eeprom_fini)(struct i2c_adapter *control);
+ void (*get_unique_id)(struct smu_context *smu);
int (*get_dpm_clock_table)(struct smu_context *smu, struct dpm_clocks
*clock_table);
int (*init_microcode)(struct smu_context *smu);
int (*load_microcode)(struct smu_context *smu);
diff --git a/drivers/gpu/drm/amd/powerplay/smu_internal.h
b/drivers/gpu/drm/amd/powerplay/smu_internal.h
index 6c59eeef2590..c9440c978402 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_internal.h
+++ b/drivers/gpu/drm/amd/powerplay/smu_internal.h
@@ -218,6 +218,8 @@ static inline int smu_send_smc_msg(struct smu_context *smu,
enum smu_message_typ
((smu)->ppt_funcs->i2c_eeprom_init ?
(smu)->ppt_funcs->i2c_eeprom_init((control)) : 0)
#define smu_i2c_eeprom_fini(smu, control) \
((smu)->ppt_funcs->i2c_eeprom_fini ?
(smu)->ppt_funcs->i2c_eeprom_fini((control)) : 0)
+#define smu_get_unique_id(smu) \
+ ((smu)->ppt_funcs->get_unique_id ?
(smu)->ppt_funcs->get_unique_id((smu)) : 0)
#define smu_log_thermal_throttling(smu) \
((smu)->ppt_funcs->log_thermal_throttling_event ?
(smu)->ppt_funcs->log_thermal_throttling_event((smu)) : 0)
--
2.17.1
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