[PATCH 2/7] drm/i915: Program RPCS for Broadwell

Tvrtko Ursulin
2018-09-05T14:22:34Z

From: Chris Wilson <chris@chris-wilson.co.uk>

Currently we only configure the power gating for Skylake and above, but
the configuration should equally apply to Broadwell and Braswell. Even
though, there is not as much variation as for later generations, we want
to expose control over the configuration to userspace and may want to
opt out of the "always-enabled" setting.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
drivers/gpu/drm/i915/intel_lrc.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 358fad63564c..3bdc1ac3e926 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2501,13 +2501,6 @@ make_rpcs(struct drm_i915_private *dev_priv)
u8 subslices = hweight8(INTEL_INFO(dev_priv)->sseu.subslice_mask[0]);
u32 rpcs = 0;

- /*
- * No explicit RPCS request is needed to ensure full
- * slice/subslice/EU enablement prior to Gen9.
- */
- if (INTEL_GEN(dev_priv) < 9)
- return 0;
-
/*
* Since the SScount bitfield in GEN8_R_PWR_CLK_STATE is only three bits
* wide and Icelake has up to eight subslices, specfial programming is
--
2.17.1