drm/i915: use i915_enable_rc6 on SNB too
For debug & testing.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 463f753..e99ae3b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6959,7 +6959,7 @@
{
u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
- u32 pcu_mbox;
+ u32 pcu_mbox, rc6_mask = 0;
int cur_freq, min_freq, max_freq;
int i;
@@ -6990,9 +6990,12 @@
I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
+ if (i915_enable_rc6)
+ rc6_mask = GEN6_RC_CTL_RC6p_ENABLE |
+ GEN6_RC_CTL_RC6_ENABLE;
+
I915_WRITE(GEN6_RC_CONTROL,
- GEN6_RC_CTL_RC6p_ENABLE |
- GEN6_RC_CTL_RC6_ENABLE |
+ rc6_mask |
GEN6_RC_CTL_EI_MODE(1) |
GEN6_RC_CTL_HW_ENABLE);