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drm/i915: fix up ilk rc6 disabling confusion

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While creating the new enable/disable_gt_powersave functions in

commit 8090c6b9da
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sun Jun 24 16:42:32 2012 +0200

    drm/i915: wrap up gt powersave enabling functions

I've botched up the handling of ironlake_disable_rc6. Fix this up by
calling it at the right place. Note though that ironlake_disable_rc6
does a bit more than just disabling rc6 - it also tears down all the
allocated context objects.

Hence we need to move intel_teardown_rc6 out and directly call it from
intel_modeset_cleanup.

Also properly mark ironlake_enable_rc6 as static and kill the un-used
declaration in i915_drv.h.

Note: In review a question popped out why disable_rc6 also tears down
the backing object and why we should move that out - it's simply for
consistency with gen6+ rps code, which does it that way.

Cc: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-06-29 23:32:16 +02:00
parent 6590190d12
commit 930ebb4624
4 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1516,7 +1516,6 @@ extern bool intel_fbc_enabled(struct drm_device *dev);
extern void intel_disable_fbc(struct drm_device *dev);
extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
extern void ironlake_init_pch_refclk(struct drm_device *dev);
extern void ironlake_enable_rc6(struct drm_device *dev);
extern void gen6_set_rps(struct drm_device *dev, u8 val);
extern void intel_detect_pch(struct drm_device *dev);
extern int intel_trans_dp_port_sel(struct drm_crtc *crtc);

2
drivers/gpu/drm/i915/intel_display.c
View File

@ -7267,6 +7267,8 @@ void intel_modeset_cleanup(struct drm_device *dev)
intel_disable_gt_powersave(dev);
ironlake_teardown_rc6(dev);
if (IS_VALLEYVIEW(dev))
vlv_init_dpio(dev);

1
drivers/gpu/drm/i915/intel_drv.h
View File

@ -494,6 +494,7 @@ extern void intel_gpu_ips_teardown(void);
extern void intel_enable_gt_powersave(struct drm_device *dev);
extern void intel_disable_gt_powersave(struct drm_device *dev);
extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv);
extern void ironlake_teardown_rc6(struct drm_device *dev);
extern void intel_ddi_dpms(struct drm_encoder *encoder, int mode);
extern void intel_ddi_mode_set(struct drm_encoder *encoder,

14
drivers/gpu/drm/i915/intel_pm.c
View File

@ -2563,7 +2563,7 @@ static void gen6_update_ring_freq(struct drm_device *dev)
}
}
static void ironlake_teardown_rc6(struct drm_device *dev)
void ironlake_teardown_rc6(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@ -2580,7 +2580,7 @@ static void ironlake_teardown_rc6(struct drm_device *dev)
}
}
void ironlake_disable_rc6(struct drm_device *dev)
static void ironlake_disable_rc6(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@ -2596,8 +2596,6 @@ void ironlake_disable_rc6(struct drm_device *dev)
I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT);
POSTING_READ(RSTDBYCTL);
}
ironlake_teardown_rc6(dev);
}
static int ironlake_setup_rc6(struct drm_device *dev)
@ -2619,7 +2617,7 @@ static int ironlake_setup_rc6(struct drm_device *dev)
return 0;
}
void ironlake_enable_rc6(struct drm_device *dev)
static void ironlake_enable_rc6(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
@ -3241,10 +3239,12 @@ static void intel_init_emon(struct drm_device *dev)
void intel_disable_gt_powersave(struct drm_device *dev)
{
if (IS_IRONLAKE_M(dev))
if (IS_IRONLAKE_M(dev)) {
ironlake_disable_drps(dev);
else if (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev))
ironlake_disable_rc6(dev);
} else if (INTEL_INFO(dev)->gen >= 6 && !IS_VALLEYVIEW(dev)) {
gen6_disable_rps(dev);
}
}
void intel_enable_gt_powersave(struct drm_device *dev)