diff options
| author | Abdiel Janulgue <abdiel.janulgue@linux.intel.com> | 2021-01-27 16:14:13 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 21:30:36 +0300 |
| commit | adeca641bcb64f9e4fd477c0d1fe482f18934e90 (patch) | |
| tree | 61d8e68afc9437d79984d0d2db64d117e4d2a9a9 /drivers/gpu/drm/i915/intel_memory_region.c | |
| parent | 7f2aa5b3014a5f294b968283695b48acf6dbe883 (diff) | |
| download | linux-adeca641bcb64f9e4fd477c0d1fe482f18934e90.tar.xz | |
drm/i915: introduce mem->reserved
In the following patch we need to reserve regions unaccessible to the
driver during initialization, so add mem->reserved for collecting such
regions.
v2: turn into an actual intel_memory_region_reserve api
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
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/20210127131417.393872-4-matthew.auld@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_memory_region.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_memory_region.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c index b1b610bfff09..49d306b5532f 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.c +++ b/drivers/gpu/drm/i915/intel_memory_region.c @@ -156,9 +156,22 @@ int intel_memory_region_init_buddy(struct intel_memory_region *mem) void intel_memory_region_release_buddy(struct intel_memory_region *mem) { + i915_buddy_free_list(&mem->mm, &mem->reserved); i915_buddy_fini(&mem->mm); } +int intel_memory_region_reserve(struct intel_memory_region *mem, + u64 offset, u64 size) +{ + int ret; + + mutex_lock(&mem->mm_lock); + ret = i915_buddy_alloc_range(&mem->mm, &mem->reserved, offset, size); + mutex_unlock(&mem->mm_lock); + + return ret; +} + struct intel_memory_region * intel_memory_region_create(struct drm_i915_private *i915, resource_size_t start, @@ -185,6 +198,7 @@ intel_memory_region_create(struct drm_i915_private *i915, mutex_init(&mem->objects.lock); INIT_LIST_HEAD(&mem->objects.list); INIT_LIST_HEAD(&mem->objects.purgeable); + INIT_LIST_HEAD(&mem->reserved); mutex_init(&mem->mm_lock); |