diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2019-08-09 21:29:24 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-10 19:47:40 +0100 |
| commit | 14d1b9a6247c4548015d940ca92dbea05c0245bb (patch) | |
| tree | 2fb7c79a425eeb57ba6f5dbed109f2e6a674be6a /drivers/gpu/drm/i915/i915_globals.h | |
| parent | 05f219d709ec5775b631b383860d3b4c8691a45f (diff) | |
drm/i915: buddy allocator
Simple buddy allocator. We want to allocate properly aligned
power-of-two blocks to promote usage of huge-pages for the GTT, so 64K,
2M and possibly even 1G. While we do support allocating stuff at a
specific offset, it is more intended for preallocating portions of the
address space, say for an initial framebuffer, for other uses drm_mm is
probably a much better fit. Anyway, hopefully this can all be thrown
away if we eventually move to having the core MM manage device memory.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190809202926.14545-2-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_globals.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_globals.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_globals.h b/drivers/gpu/drm/i915/i915_globals.h index 2d199f411a4a..b2f5cd9b9b1a 100644 --- a/drivers/gpu/drm/i915/i915_globals.h +++ b/drivers/gpu/drm/i915/i915_globals.h @@ -27,6 +27,7 @@ void i915_globals_exit(void); /* constructors */ int i915_global_active_init(void); +int i915_global_buddy_init(void); int i915_global_context_init(void); int i915_global_gem_context_init(void); int i915_global_objects_init(void); |