drm/amd/powerplay: add dpm force multiple levels on cz/tonga/fiji/polaris (v2)
Allows you to force multiple levels rather than just one via the new
sysfs interrface.
v2: squash in:
drm/amd/powerplay: ensure clock level set by user is valid.
From Rex.
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Eric Huang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 6d44d4a..589b36e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -362,16 +362,23 @@
struct amdgpu_device *adev = ddev->dev_private;
int ret;
long level;
+ uint32_t i, mask = 0;
+ char sub_str[2];
- ret = kstrtol(buf, 0, &level);
+ for (i = 0; i < strlen(buf) - 1; i++) {
+ sub_str[0] = *(buf + i);
+ sub_str[1] = '\0';
+ ret = kstrtol(sub_str, 0, &level);
- if (ret) {
- count = -EINVAL;
- goto fail;
+ if (ret) {
+ count = -EINVAL;
+ goto fail;
+ }
+ mask |= 1 << level;
}
if (adev->pp_enabled)
- amdgpu_dpm_force_clock_level(adev, PP_SCLK, level);
+ amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask);
fail:
return count;
}
@@ -399,16 +406,23 @@
struct amdgpu_device *adev = ddev->dev_private;
int ret;
long level;
+ uint32_t i, mask = 0;
+ char sub_str[2];
- ret = kstrtol(buf, 0, &level);
+ for (i = 0; i < strlen(buf) - 1; i++) {
+ sub_str[0] = *(buf + i);
+ sub_str[1] = '\0';
+ ret = kstrtol(sub_str, 0, &level);
- if (ret) {
- count = -EINVAL;
- goto fail;
+ if (ret) {
+ count = -EINVAL;
+ goto fail;
+ }
+ mask |= 1 << level;
}
if (adev->pp_enabled)
- amdgpu_dpm_force_clock_level(adev, PP_MCLK, level);
+ amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask);
fail:
return count;
}
@@ -436,16 +450,23 @@
struct amdgpu_device *adev = ddev->dev_private;
int ret;
long level;
+ uint32_t i, mask = 0;
+ char sub_str[2];
- ret = kstrtol(buf, 0, &level);
+ for (i = 0; i < strlen(buf) - 1; i++) {
+ sub_str[0] = *(buf + i);
+ sub_str[1] = '\0';
+ ret = kstrtol(sub_str, 0, &level);
- if (ret) {
- count = -EINVAL;
- goto fail;
+ if (ret) {
+ count = -EINVAL;
+ goto fail;
+ }
+ mask |= 1 << level;
}
if (adev->pp_enabled)
- amdgpu_dpm_force_clock_level(adev, PP_PCIE, level);
+ amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask);
fail:
return count;
}
