From: Rex Zhu <Rex.Zhu@amd.com>
Date: Wed, 10 Jan 2018 18:42:36 +0800
Subject: drm/amdgpu: add custom power policy support in sysfs
Git-commit: 37c5c4dbf03b167b5ca68d4bbc7fb6c92a463fb4
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
when cat pp_power_profile_mode on Vega10
NUM MODE_NAME BUSY_SET_POINT FPS USE_RLC_BUSY MIN_ACTIVE_LEVEL
0 3D_FULL_SCREEN : 70 60 1 3
1 POWER_SAVING : 90 60 0 0
2 VIDEO*: 70 60 0 0
3 VR : 70 90 0 0
4 COMPUTER : 30 60 0 6
5 CUSTOM : 0 0 0 0
the result show all the profile mode we can support and custom mode.
user can echo the num(0-4) to pp_power_profile_mode to select the profile
mode or can echo "5 value value value value" to enter CUSTOM mode.
the four parameter is set_point/FPS/USER_RLC_BUSY/MIN_ACTIVE_LEVEL.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h | 8 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 81 ++++++++++++++++++++++++-
drivers/gpu/drm/amd/include/kgd_pp_interface.h | 12 +++
3 files changed, 99 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h
@@ -366,6 +366,14 @@ enum amdgpu_pcie_gen {
(adev)->powerplay.pp_handle, virtual_addr_low, \
virtual_addr_hi, mc_addr_low, mc_addr_hi, size)
+#define amdgpu_dpm_get_power_profile_mode(adev, buf) \
+ ((adev)->powerplay.pp_funcs->get_power_profile_mode(\
+ (adev)->powerplay.pp_handle, buf))
+
+#define amdgpu_dpm_set_power_profile_mode(adev, parameter, size) \
+ ((adev)->powerplay.pp_funcs->set_power_profile_mode(\
+ (adev)->powerplay.pp_handle, parameter, size))
+
struct amdgpu_dpm {
struct amdgpu_ps *ps;
/* number of valid power states */
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -582,6 +582,73 @@ fail:
return count;
}
+static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_device *ddev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = ddev->dev_private;
+
+ if (adev->powerplay.pp_funcs->get_power_profile_mode)
+ return amdgpu_dpm_get_power_profile_mode(adev, buf);
+
+ return snprintf(buf, PAGE_SIZE, "\n");
+}
+
+
+static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int ret = 0xff;
+ struct drm_device *ddev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = ddev->dev_private;
+ uint32_t parameter_size = 0;
+ long parameter[64];
+ char *sub_str, buf_cpy[128];
+ char *tmp_str;
+ uint32_t i = 0;
+ char tmp[2];
+ long int profile_mode = 0;
+ const char delimiter[3] = {' ', '\n', '\0'};
+
+ tmp[0] = *(buf);
+ tmp[1] = '\0';
+ ret = kstrtol(tmp, 0, &profile_mode);
+ if (ret)
+ goto fail;
+
+ if (profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
+ if (count < 2 || count > 127)
+ return -EINVAL;
+ while (isspace(*++buf))
+ i++;
+ memcpy(buf_cpy, buf, count-i);
+ tmp_str = buf_cpy;
+ while (tmp_str[0]) {
+ sub_str = strsep(&tmp_str, delimiter);
+ ret = kstrtol(sub_str, 0, ¶meter[parameter_size]);
+ if (ret) {
+ count = -EINVAL;
+ goto fail;
+ }
+ pr_info("value is %ld \n", parameter[parameter_size]);
+ parameter_size++;
+ while (isspace(*tmp_str))
+ tmp_str++;
+ }
+ }
+ parameter[parameter_size] = profile_mode;
+ if (adev->powerplay.pp_funcs->set_power_profile_mode)
+ ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);
+
+ if (!ret)
+ return count;
+fail:
+ return -EINVAL;
+}
+
static ssize_t amdgpu_get_pp_power_profile(struct device *dev,
char *buf, struct amd_pp_profile *query)
{
@@ -770,7 +837,9 @@ static DEVICE_ATTR(pp_gfx_power_profile,
static DEVICE_ATTR(pp_compute_power_profile, S_IRUGO | S_IWUSR,
amdgpu_get_pp_compute_power_profile,
amdgpu_set_pp_compute_power_profile);
-
+static DEVICE_ATTR(pp_power_profile_mode, S_IRUGO | S_IWUSR,
+ amdgpu_get_pp_power_profile_mode,
+ amdgpu_set_pp_power_profile_mode);
static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -1403,6 +1472,14 @@ int amdgpu_pm_sysfs_init(struct amdgpu_d
return ret;
}
+ ret = device_create_file(adev->dev,
+ &dev_attr_pp_power_profile_mode);
+ if (ret) {
+ DRM_ERROR("failed to create device file "
+ "pp_power_profile_mode\n");
+ return ret;
+ }
+
ret = amdgpu_debugfs_pm_init(adev);
if (ret) {
DRM_ERROR("Failed to register debugfs file for dpm!\n");
@@ -1438,6 +1515,8 @@ void amdgpu_pm_sysfs_fini(struct amdgpu_
&dev_attr_pp_gfx_power_profile);
device_remove_file(adev->dev,
&dev_attr_pp_compute_power_profile);
+ device_remove_file(adev->dev,
+ &dev_attr_pp_power_profile_mode);
}
void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -140,7 +140,15 @@ struct amd_pp_init {
uint32_t feature_mask;
};
-
+enum PP_SMC_POWER_PROFILE {
+ PP_SMC_POWER_PROFILE_FULLSCREEN3D = 0x0,
+ PP_SMC_POWER_PROFILE_POWERSAVING = 0x1,
+ PP_SMC_POWER_PROFILE_VIDEO = 0x2,
+ PP_SMC_POWER_PROFILE_VR = 0x3,
+ PP_SMC_POWER_PROFILE_COMPUTE = 0x4,
+ PP_SMC_POWER_PROFILE_CUSTOM = 0x5,
+ PP_SMC_POWER_PROFILE_AUTO = 0x6,
+};
enum {
PP_GROUP_UNKNOWN = 0,
@@ -289,6 +297,8 @@ struct amd_pm_funcs {
struct pp_display_clock_request *clock);
int (*get_display_mode_validation_clocks)(void *handle,
struct amd_pp_simple_clock_info *clocks);
+ int (*get_power_profile_mode)(void *handle, char *buf);
+ int (*set_power_profile_mode)(void *handle, long *input, uint32_t size);
};
#endif