diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-03-18 09:48:21 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-20 11:48:13 +0100 |
| commit | aed242ff7ebb697e4dff912bd4dc7ec7192f7581 (patch) | |
| tree | 9bf4cf8bef001d27088e37d037f55f1149802964 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | edf4427b8055dc93eb5222d8174b07a75ba24fb5 (diff) | |
| download | linux-aed242ff7ebb697e4dff912bd4dc7ec7192f7581.tar.bz2 | |
drm/i915: Relax RPS contraints to allows setting minfreq on idle
When we idle, we set the GPU frequency to the hardware minimum (not user
minimum). We introduce a new variable to distinguish between the
different roles, and to allow easy tuning of the idle frequency without
impacting over aspects of RPS. Setting the minimum frequency should be a
safety blanket as the pcu on the GPU should be power gating itself
anyway. However, in order for us to do set the absolute minimum
frequency, we need to relax a few of our assertions that we do not
exceed the user limits.
v2: Add idle_freq
v3: Init idle_freq for vlv and add a bunch of WARNs
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Deepak S<deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 81f60b48def2..a06536cfce6d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1025,6 +1025,7 @@ struct intel_gen6_power_mgmt { u8 max_freq_softlimit; /* Max frequency permitted by the driver */ u8 max_freq; /* Maximum frequency, RP0 if not overclocking */ u8 min_freq; /* AKA RPn. Minimum frequency */ + u8 idle_freq; /* Frequency to request when we are idle */ u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */ u8 rp1_freq; /* "less than" RP0 power/freqency */ u8 rp0_freq; /* Non-overclocked max frequency. */ |