From: Jani Nikula <jani.nikula@linux.intel.com>
To: Damien Lespiau <damien.lespiau@intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/bdw: Implement WaForceContextSaveRestoreNonCoherent
Date: Wed, 28 Jan 2015 11:21:17 +0200 [thread overview]
Message-ID: <871tmfs1ki.fsf@intel.com> (raw)
In-Reply-To: <1422382393-27482-1-git-send-email-damien.lespiau@intel.com>
On Tue, 27 Jan 2015, Damien Lespiau <damien.lespiau@intel.com> wrote:
Missing commit message. I need some description to decide whether this
is required for fixes/stable or not.
BR,
Jani.
> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 1 +
> drivers/gpu/drm/i915/intel_ringbuffer.c | 2 ++
> 2 files changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index ae8ea42..47bc4e2 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -5253,6 +5253,7 @@ enum punit_power_well {
>
> /* GEN8 chicken */
> #define HDC_CHICKEN0 0x7300
> +#define HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT (1<<5)
> #define HDC_FORCE_NON_COHERENT (1<<4)
> #define HDC_DONOT_FETCH_MEM_WHEN_MASKED (1<<11)
> #define HDC_FENCE_DEST_SLM_DISABLE (1<<14)
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 36dad33..d393026 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -790,9 +790,11 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring)
> */
> /* WaForceEnableNonCoherent:bdw */
> /* WaHdcDisableFetchWhenMasked:bdw */
> + /* WaForceContextSaveRestoreNonCoherent:bdw */
> /* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
> WA_SET_BIT_MASKED(HDC_CHICKEN0,
> HDC_FORCE_NON_COHERENT |
> + HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT |
> HDC_DONOT_FETCH_MEM_WHEN_MASKED |
> (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
>
> --
> 1.8.3.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Jani Nikula, Intel Open Source Technology Center
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Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
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next prev parent reply other threads:[~2015-01-28 9:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-27 18:13 [PATCH] drm/i915/bdw: Implement WaForceContextSaveRestoreNonCoherent Damien Lespiau
2015-01-28 9:21 ` Jani Nikula [this message]
2015-01-29 11:03 ` Damien Lespiau
2015-01-29 16:06 ` shuang.he
2015-02-02 13:44 ` Ville Syrjälä
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