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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>, intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 10/26] drm/i915: add more clock gating for VLV, allow force wake at init
Date: Fri, 08 Mar 2013 15:39:55 +0200	[thread overview]
Message-ID: <87d2vaui1g.fsf@intel.com> (raw)
In-Reply-To: <1362175722-9281-10-git-send-email-jbarnes@virtuousgeek.org>

On Sat, 02 Mar 2013, Jesse Barnes <jbarnes@virtuousgeek.org> wrote:
> From: Ben Widawsky <ben@bwidawsk.net>
>
> Disable all Gunit clock gating and make set the "allow force wake" bit.
>
> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
> ---
>  drivers/gpu/drm/i915/i915_gem.c |    4 ++++
>  drivers/gpu/drm/i915/i915_reg.h |    1 +
>  drivers/gpu/drm/i915/intel_pm.c |   10 +++++++++-
>  3 files changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 8413ffc..dd67698 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -4010,7 +4010,11 @@ int i915_gem_init(struct drm_device *dev)
>  	int ret;
>  
>  	mutex_lock(&dev->struct_mutex);
> +
> +	/* VLVA0 (potential hack), BIOS isn't actually waking us */
> +	I915_WRITE(VLV_GTLC_WAKE_CTRL, 1);

Wrap that in if IS_VALLEYVIEW(dev)? Separate this from the other hunk
into a separate patch?

Jani.

>  	i915_gem_init_global_gtt(dev);
> +
>  	ret = i915_gem_init_hw(dev);
>  	mutex_unlock(&dev->struct_mutex);
>  	if (ret) {
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 539301d..6c037b2 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -4273,6 +4273,7 @@
>  #define  FORCEWAKE_ACK_VLV			0x1300b4
>  #define  FORCEWAKE_ACK_HSW			0x130044
>  #define  FORCEWAKE_ACK				0x130090
> +#define  VLV_GTLC_WAKE_CTRL			0x130090
>  #define  FORCEWAKE_MT				0xa188 /* multi-threaded */
>  #define   FORCEWAKE_KERNEL			0x1
>  #define   FORCEWAKE_USER			0x2
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 59ea12a..f29a1a2 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3987,7 +3987,15 @@ static void valleyview_init_clock_gating(struct drm_device *dev)
>  	 * Disable clock gating on th GCFG unit to prevent a delay
>  	 * in the reporting of vblank events.
>  	 */
> -	I915_WRITE(VLV_GUNIT_CLOCK_GATE, GCFG_DIS);
> +	/* VLVA0 HACK */
> +	I915_WRITE(VLV_GUNIT_CLOCK_GATE, 0xffffffff);
> +	I915_WRITE(0x9400, 0xffffffff);
> +	I915_WRITE(0x9404, 0xffffffff);
> +	I915_WRITE(0x9408, 0xffffffff);
> +	I915_WRITE(0x940c, 0xffffffff);
> +	I915_WRITE(0x9410, 0xffffffff);
> +	I915_WRITE(0x9414, 0xffffffff);
> +	I915_WRITE(0x9418, 0xffffffff);
>  }
>  
>  static void g4x_init_clock_gating(struct drm_device *dev)
> -- 
> 1.7.9.5
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

  reply	other threads:[~2013-03-08 13:39 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-01 22:08 [PATCH 01/26] drm/i915: sprite support for ValleyView Jesse Barnes
2013-03-01 22:08 ` [PATCH 02/26] drm/i915: add sprite assertion function for VLV Jesse Barnes
2013-03-01 22:08 ` [PATCH 03/26] drm/i915: add constant alpha support to sprite ioctl Jesse Barnes
2013-03-01 22:08 ` [PATCH 04/26] drm/i915: update VLV PLL and DPIO code Jesse Barnes
2013-03-01 22:19   ` Jesse Barnes
2013-03-01 22:19   ` Jesse Barnes
2013-03-03 16:21   ` Daniel Vetter
2013-03-05 15:05   ` Jani Nikula
2013-03-08 13:33   ` Jani Nikula
2013-03-08 16:52     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 05/26] drm/i915: panel power sequencing for VLV eDP Jesse Barnes
2013-03-08 13:51   ` Jani Nikula
2013-03-08 16:53     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 06/26] drm/i915: add more VLV IDs Jesse Barnes
2013-03-01 22:08 ` [PATCH 07/26] drm/i915: implement WaDisablePSDDualDispatchEnable on VLV Jesse Barnes
2013-03-06 18:20   ` Ville Syrjälä
2013-03-06 18:28     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 08/26] drm/i915: VLV has force wake Jesse Barnes
2013-03-01 22:08 ` [PATCH 09/26] drm/i915: add power context allocation and setup on VLV Jesse Barnes
2013-03-05 15:10   ` Jani Nikula
2013-03-07 22:56     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 10/26] drm/i915: add more clock gating for VLV, allow force wake at init Jesse Barnes
2013-03-08 13:39   ` Jani Nikula [this message]
2013-03-08 16:52     ` Jesse Barnes
2013-03-08 17:06       ` Ville Syrjälä
2013-03-08 17:08         ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 11/26] drm/i915: fix VLV limits and m/n/p calculations Jesse Barnes
2013-03-05 12:56   ` Daniel Vetter
2013-03-07 21:41     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 12/26] drm/i915: disable watermarks on VLV, pondicherry takes care of this Jesse Barnes
2013-03-01 22:08 ` [PATCH 13/26] drm/i915: use gen6 stolen check on VLV Jesse Barnes
2013-03-06 18:45   ` Ville Syrjälä
2013-03-06 19:07     ` Daniel Vetter
2013-03-01 22:08 ` [PATCH 14/26] drm/i915: add Punit read/write routines for VLV Jesse Barnes
2013-03-01 22:08 ` [PATCH 15/26] drm/i915: add media well to VLV force wake routines Jesse Barnes
2013-03-06 18:28   ` Ville Syrjälä
2013-03-06 18:33     ` Jesse Barnes
2013-03-06 18:52       ` Ville Syrjälä
2013-03-06 19:10       ` Daniel Vetter
2013-03-06 20:53         ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 16/26] drm/i915: turbo & RC6 support for VLV Jesse Barnes
2013-03-06 10:51   ` Rohit Jain
2013-03-07 22:27     ` Jesse Barnes
2013-03-11  6:21       ` Jain, Rohit
2013-03-01 22:08 ` [PATCH 17/26] drm/i915: remove VLV MSI IRQ hack Jesse Barnes
2013-04-26 21:40   ` Daniel Vetter
2013-03-01 22:08 ` [PATCH 18/26] drm/i915: don't enumerate VGA on VLV Jesse Barnes
2013-03-01 22:08 ` [PATCH 19/26] drm/i915: DSPFW and BLC regs are in the display offset range Jesse Barnes
2013-03-08 13:57   ` Jani Nikula
2013-03-08 16:54     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 20/26] drm/i915: don't use plane pipe select on VLV Jesse Barnes
2013-03-01 22:08 ` [PATCH 21/26] drm/i915: use VLV DIP routines " Jesse Barnes
2013-03-01 22:08 ` [PATCH 22/26] drm/i915: export intel_dpio_write for use in intel_dp.c Jesse Barnes
2013-03-01 22:08 ` [PATCH 23/26] drm/i915/dp: program VSwing and Preemphasis control settings on VLV Jesse Barnes
2013-03-01 22:08 ` [PATCH 24/26] drm/i915: VLV doesn't have HDMI on port C Jesse Barnes
2013-03-19 13:00   ` Ville Syrjälä
2013-03-19 15:27     ` Jesse Barnes
2013-03-01 22:08 ` [PATCH 25/26] drm/i915/dp: don't use ILK paths on VLV Jesse Barnes
2013-03-08 14:12   ` Jani Nikula
2013-03-08 14:57     ` Ville Syrjälä
2013-03-01 22:08 ` [PATCH 26/26] drm/i915/dp: add pre-PCH eDP checking to DP detect for VLV Jesse Barnes
2013-03-08 14:16 ` [PATCH 01/26] drm/i915: sprite support for ValleyView Jani Nikula

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