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| author | Dale B Stimson <dale.b.stimson@intel.com> | 2022-10-13 18:45:22 +0300 |
|---|---|---|
| committer | Anshuman Gupta <anshuman.gupta@intel.com> | 2022-10-17 12:22:24 +0300 |
| commit | 99f55efb79114f7bc38e9c769f06f5bacb5e9d21 (patch) | |
| tree | 2399c840278f4927de1d71a7c5c396f7f4c8191f /Documentation | |
| parent | f8572bb675250ee527d9ba35fa1ce17480407399 (diff) | |
| download | linux-99f55efb79114f7bc38e9c769f06f5bacb5e9d21.tar.xz | |
drm/i915/hwmon: Power PL1 limit and TDP setting
Use i915 HWMON to display/modify dGfx power PL1 limit and TDP setting.
v2:
- Fix review comments (Ashutosh)
- Do not restore power1_max upon module unload/load sequence
because on production systems modules are always loaded
and not unloaded/reloaded (Ashutosh)
- Fix review comments (Jani)
- Remove endianness conversion (Ashutosh)
v3: Add power1_rated_max (Ashutosh)
v4:
- Use macro HWMON_CHANNEL_INFO to define power channel (Guenter)
- Update the date and kernel version in Documentation (Badal)
v5: Use hwm_ prefix for static functions (Ashutosh)
v6: Fix review comments (Ashutosh)
v7:
- Define PCU_PACKAGE_POWER_SKU for DG1,DG2 and move
PKG_PKG_TDP to intel_mchbar_regs.h (Anshuman)
- KernelVersion: 6.2, Date: February 2023 in doc (Tvrtko)
v8: Change contact to intel-gfx (Rodrigo)
Minor change to val_sku_unit init (Andi)
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dale B Stimson <dale.b.stimson@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Signed-off-by: Badal Nilawar <badal.nilawar@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221013154526.2105579-4-ashutosh.dixit@intel.com
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon index 5f4b136f0850..e0b1af4ec6d8 100644 --- a/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon +++ b/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon @@ -5,3 +5,23 @@ Contact: intel-gfx@lists.freedesktop.org Description: RO. Current Voltage in millivolt. Only supported for particular Intel i915 graphics platforms. + +What: /sys/devices/.../hwmon/hwmon<i>/power1_max +Date: February 2023 +KernelVersion: 6.2 +Contact: intel-gfx@lists.freedesktop.org +Description: RW. Card reactive sustained (PL1/Tau) power limit in microwatts. + + The power controller will throttle the operating frequency + if the power averaged over a window (typically seconds) + exceeds this limit. + + Only supported for particular Intel i915 graphics platforms. + +What: /sys/devices/.../hwmon/hwmon<i>/power1_rated_max +Date: February 2023 +KernelVersion: 6.2 +Contact: intel-gfx@lists.freedesktop.org +Description: RO. Card default power limit (default TDP setting). + + Only supported for particular Intel i915 graphics platforms. |