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| author |   Imre Deak <imre.deak@intel.com> | 2015-04-15 16:52:30 -0700 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2015-04-24 00:24:54 +0300 |
| commit | b5f1c97f944482e98e6e39208af356630389d1ea (patch) | |
| tree | c9ee112e97f7adfb4b1aa176ce845a9eb85d26d3 /drivers | |
| parent | drm/i915: Workaround to avoid lite restore with HEAD==TAIL (diff) | |
| download | linux-dev-b5f1c97f944482e98e6e39208af356630389d1ea.tar.xz linux-dev-b5f1c97f944482e98e6e39208af356630389d1ea.zip | |
drm/i915: vlv: fix save/restore of GFX_MAX_REQ_COUNT reg
Due this typo we don't save/restore the GFX_MAX_REQ_COUNT register across
suspend/resume, so fix this.
This was introduced in
commit ddeea5b0c36f3665446518c609be91f9336ef674
Author: Imre Deak <imre.deak@intel.com>
Date: Mon May 5 15:19:56 2014 +0300
drm/i915: vlv: add runtime PM support
I noticed this only by reading the code. To my knowledge it shouldn't
cause any real problems at the moment, since the power well backing this
register remains on across a runtime s/r. This may change once
system-wide s0ix functionality is enabled in the kernel.
v2:
- resend after a missing git add -u :/
Cc: stable@vger.kernel.org
Signed-off-by: Imre Deak <imre.deak@intel.com>
Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 82f8be4b6745..9cc953e9b867 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1038,7 +1038,7 @@ static void vlv_save_gunit_s0ix_state(struct drm_i915_private *dev_priv) s->lra_limits[i] = I915_READ(GEN7_LRA_LIMITS_BASE + i * 4); s->media_max_req_count = I915_READ(GEN7_MEDIA_MAX_REQ_COUNT); - s->gfx_max_req_count = I915_READ(GEN7_MEDIA_MAX_REQ_COUNT); + s->gfx_max_req_count = I915_READ(GEN7_GFX_MAX_REQ_COUNT); s->render_hwsp = I915_READ(RENDER_HWS_PGA_GEN7); s->ecochk = I915_READ(GAM_ECOCHK); @@ -1119,7 +1119,7 @@ static void vlv_restore_gunit_s0ix_state(struct drm_i915_private *dev_priv) I915_WRITE(GEN7_LRA_LIMITS_BASE + i * 4, s->lra_limits[i]); I915_WRITE(GEN7_MEDIA_MAX_REQ_COUNT, s->media_max_req_count); - I915_WRITE(GEN7_MEDIA_MAX_REQ_COUNT, s->gfx_max_req_count); + I915_WRITE(GEN7_GFX_MAX_REQ_COUNT, s->gfx_max_req_count); I915_WRITE(RENDER_HWS_PGA_GEN7, s->render_hwsp); I915_WRITE(GAM_ECOCHK, s->ecochk); |