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| author | Evan Quan <evan.quan@amd.com> | 2020-05-22 18:57:11 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-05-29 13:55:07 -0400 |
| commit | b265bdbd9f2811c2a674ea9d1161de821923897c (patch) | |
| tree | 624303118365a4bba34f2e90fe2a0f3c67fa4e28 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | bcdc7c05bd2dd8fa8afbd725110d5ec3075d4b42 (diff) | |
| download | linux-b265bdbd9f2811c2a674ea9d1161de821923897c.tar.bz2 | |
drm/amdgpu: added a sysfs interface for thermal throttling related V4
User can check and set the enablement of throttling logging and
the interval between each logging.
V2: simplify the sysfs interface(no string parsing)
V3: add proper lock protection on updating throttling_logging_rs.interval
V4: documentation cosmetic per Luben's suggestion
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 2f0e8da7bacf..e5b639a1575e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3035,6 +3035,17 @@ int amdgpu_device_init(struct amdgpu_device *adev, adev->gfx.gfx_off_req_count = 1; adev->pm.ac_power = power_supply_is_system_supplied() > 0; + atomic_set(&adev->throttling_logging_enabled, 1); + /* + * If throttling continues, logging will be performed every minute + * to avoid log flooding. "-1" is subtracted since the thermal + * throttling interrupt comes every second. Thus, the total logging + * interval is 59 seconds(retelimited printk interval) + 1(waiting + * for throttling interrupt) = 60 seconds. + */ + ratelimit_state_init(&adev->throttling_logging_rs, (60 - 1) * HZ, 1); + ratelimit_set_flags(&adev->throttling_logging_rs, RATELIMIT_MSG_ON_RELEASE); + /* Registers mapping */ /* TODO: block userspace mapping of io register */ if (adev->asic_type >= CHIP_BONAIRE) { |