[Intel-gfx] [PATCH 2/2] drm/i915/vlv: use parallel context restore when coming out of RC6

[S, Deepak]

Patches looks fine.

Reviewed-by: Deepak S <deepak.s at inel.com<mailto:jbarnes at virtuousgeek.org>>


From: Jesse Barnes <jbarnes at virtuousgeek.org<mailto:jbarnes at virtuousgeek.org>>
Date: Fri, Nov 15, 2013 at 11:02 PM
Subject: [Intel-gfx] [PATCH 2/2] drm/i915/vlv: use parallel context restore when coming out of RC6
To: intel-gfx at lists.freedesktop.org<mailto:intel-gfx at lists.freedesktop.org>


Setting this bit restores all ring contexts in parallel rather than
serially.  Matches current BWG recommendations.

Tested-by: "Meng, Mengmeng" <mengmeng.meng at intel.com<mailto:mengmeng.meng at intel.com>>
Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org<mailto:jbarnes at virtuousgeek.org>>
---
 drivers/gpu/drm/i915/i915_reg.h | 1 +
 drivers/gpu/drm/i915/intel_pm.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 849e595..40b1136 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4891,6 +4891,7 @@
 #define   GEN6_RC_CTL_RC6_ENABLE               (1<<18)
 #define   GEN6_RC_CTL_RC1e_ENABLE              (1<<20)
 #define   GEN6_RC_CTL_RC7_ENABLE               (1<<22)
+#define   VLV_RC_CTL_CTX_RST_PARALLEL          (1<<24)
 #define   GEN7_RC_CTL_TO_MODE                  (1<<28)
 #define   GEN6_RC_CTL_EI_MODE(x)               ((x)<<27)
 #define   GEN6_RC_CTL_HW_ENABLE                        (1<<31)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5d3912a..6a21d11 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4110,7 +4110,7 @@ static void valleyview_enable_rps(struct drm_device *dev)
                                      VLV_MEDIA_RC6_COUNT_EN |
                                      VLV_RENDER_RC6_COUNT_EN));
        if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE)
-               rc6_mode = GEN7_RC_CTL_TO_MODE;
+               rc6_mode = GEN7_RC_CTL_TO_MODE | VLV_RC_CTL_CTX_RST_PARALLEL;

        intel_print_rc6_info(dev, rc6_mode);

--
1.8.4.2

_______________________________________________
Intel-gfx mailing list
Intel-gfx at lists.freedesktop.org<mailto:Intel-gfx at lists.freedesktop.org>
http://lists.freedesktop.org/mailman/listinfo/intel-gfx



--
Deepak S
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20131128/b8d85490/attachment.html>