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| author |   Matthew Auld <matthew.auld@intel.com> | 2017-10-06 23:18:16 +0100 |
|---|---|---|
| committer |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-07 10:11:44 +0100 |
| commit | 2a9654b2cdd8f9ef51b91dfd4448973a47284825 (patch) | |
| tree | 6cfb621ca2ade1a4c39fbac1445d86ff7c337dfe /drivers/gpu/drm/i915/i915_gem_gtt.h | |
| parent | drm/i915/gemfs: enable THP (diff) | |
| download | linux-dev-2a9654b2cdd8f9ef51b91dfd4448973a47284825.tar.xz linux-dev-2a9654b2cdd8f9ef51b91dfd4448973a47284825.zip | |
drm/i915: introduce page_sizes field to dev_info
In preparation for huge gtt pages expose page_sizes as part of the
device info, to indicate the page sizes supported by the HW. Currently
only 4K is supported.
v2: s/page_size_mask/page_sizes/
v3: introduce I915_GTT_MAX_PAGE_SIZE
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-5-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-4-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 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index f62fb903dc24..50218c141c21 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -42,7 +42,13 @@ #include "i915_gem_request.h" #include "i915_selftest.h" -#define I915_GTT_PAGE_SIZE 4096UL +#define I915_GTT_PAGE_SIZE_4K BIT(12) +#define I915_GTT_PAGE_SIZE_64K BIT(16) +#define I915_GTT_PAGE_SIZE_2M BIT(21) + +#define I915_GTT_PAGE_SIZE I915_GTT_PAGE_SIZE_4K +#define I915_GTT_MAX_PAGE_SIZE I915_GTT_PAGE_SIZE_2M + #define I915_GTT_MIN_ALIGNMENT I915_GTT_PAGE_SIZE #define I915_FENCE_REG_NONE -1 |