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From: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
Cc: Matthew Auld <matthew.auld@intel.com>
Subject: Re: [PATCH 4/5] drm/i915: cpu-map based dumb buffers
Date: Tue, 22 Oct 2019 10:52:55 +0300	[thread overview]
Message-ID: <96f79055-5f3a-7774-825e-00855105b7d4@linux.intel.com> (raw)
In-Reply-To: <157166491547.29536.1978879286617090513@skylake-alporthouse-com>



On 21/10/2019 16.35, Chris Wilson wrote:
> Quoting Abdiel Janulgue (2019-10-21 11:48:10)
>> +int
>> +i915_gem_mmap_dumb(struct drm_file *file,
>> +                 struct drm_device *dev,
>> +                 u32 handle,
>> +                 u64 *offset)
>> +{
>> +       return __assign_gem_object_mmap_data(file, handle, I915_MMAP_TYPE_WC,
> 
> It still needs to do boot_cpu_has(PAT),

So we probably need a special use-case for GTT mmaps in those kind of
hw, no?


 but it looks like
> kms_frontbuffer is not doing enough dirtyfb for its dumb buffer usage.
> Bad IGT (it's either a bug in the test for not adhering to the uabi
> for dumb buffers, or we have some tracking bug intel_frontbuffer).
> -Chris
> 
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  reply	other threads:[~2019-10-22  7:52 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-21 10:48 [PATCH 1/5] drm/i915: Allow i915 to manage the vma offset nodes instead of drm core Abdiel Janulgue
2019-10-21 10:48 ` [PATCH 2/5] drm/i915: define HAS_MAPPABLE_APERTURE Abdiel Janulgue
2019-10-21 10:48 ` [PATCH 3/5] drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET Abdiel Janulgue
2019-10-21 10:48 ` [PATCH 4/5] drm/i915: cpu-map based dumb buffers Abdiel Janulgue
2019-10-21 13:35   ` Chris Wilson
2019-10-22  7:52     ` Abdiel Janulgue [this message]
2019-10-22 10:37       ` Chris Wilson
2019-10-21 10:48 ` [PATCH 5/5] drm/i915: Add cpu fault handler for mmap_offset Abdiel Janulgue
2019-10-21 12:37 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/5] drm/i915: Allow i915 to manage the vma offset nodes instead of drm core Patchwork
2019-10-21 13:02 ` ✗ Fi.CI.BAT: failure " Patchwork
  -- strict thread matches above, loose matches on Subject: below --
2019-10-23  8:24 [PATCH 1/5] " Abdiel Janulgue
2019-10-23  8:24 ` [PATCH 4/5] drm/i915: cpu-map based dumb buffers Abdiel Janulgue
2019-10-23  8:30 [PATCH 1/5] drm/i915: Allow i915 to manage the vma offset nodes instead of drm core Abdiel Janulgue
2019-10-23  8:30 ` [PATCH 4/5] drm/i915: cpu-map based dumb buffers Abdiel Janulgue

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