diff options
| author | Ashutosh Dixit <ashutosh.dixit@intel.com> | 2022-05-25 06:19:17 -0700 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-05-26 09:36:57 +0100 |
| commit | 26be7cd8aacdd3f0429834e78e3166286779f083 (patch) | |
| tree | 31270838edc201dc5cf7e8531f2b9314ecf0e643 /drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | |
| parent | 3304033a1e69cd81a2044b4422f0d7e593afb4e6 (diff) | |
drm/i915/gt: Add media freq factor to per-gt sysfs
Expose new sysfs to program and retrieve media freq factor. Factor values
of 0 (dynamic), 0.5 and 1.0 are supported via a u8.8 fixed point
representation (corresponding to integer values of 0, 128 and 256
respectively).
Media freq factor is converted to media_ratio_mode for GuC. It is
programmed into GuC using H2G SLPC interface. It is retrieved from GuC
through a register read. A cached media_ratio_mode is maintained to
preserve set values across GuC resets.
This patch adds the following sysfs files to gt/gtN sysfs:
* media_freq_factor
* media_freq_factor.scale
v2: Minor wording change in drm_warn (Tvrtko)
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Dale B Stimson <dale.b.stimson@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7ad7578335d8af9cba047b4bcf33d1887453d2e1.1653484574.git.ashutosh.dixit@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h index bf5b9a563c09..73d208123528 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h @@ -29,6 +29,9 @@ struct intel_guc_slpc { u32 min_freq_softlimit; u32 max_freq_softlimit; + /* cached media ratio mode */ + u32 media_ratio_mode; + /* Protects set/reset of boost freq * and value of num_waiters */ |