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| author |   Matthew Auld <matthew.auld@intel.com> | 2017-10-06 23:18:25 +0100 |
|---|---|---|
| committer |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-07 10:11:56 +0100 |
| commit | aa095871e4a7ba9fcf87ffd762c044e1f9f634f1 (patch) | |
| tree | 6d707efaadc9e402ff3925ca7d1212c2402272e6 /drivers/gpu/drm/i915/i915_gem_gtt.h | |
| parent | drm/i915: support 2M pages for the 48b PPGTT (diff) | |
| download | linux-dev-aa095871e4a7ba9fcf87ffd762c044e1f9f634f1.tar.xz linux-dev-aa095871e4a7ba9fcf87ffd762c044e1f9f634f1.zip | |
drm/i915: add support for 64K scratch page
Before we can fully enable 64K pages, we need to first support a 64K
scratch page if we intend to support the case where we have object sizes
< 2M, since any scratch PTE must also point to a 64K region. Without
this our 64K usage is limited to objects which completely fill the
page-table, and therefore don't need any scratch.
v2: add reminder about why 48b PPGTT
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-14-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-13-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index b9d7036c3665..e9de3f05b0c9 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -215,6 +215,7 @@ struct i915_vma; struct i915_page_dma { struct page *page; + int order; union { dma_addr_t daddr; |