dumb_size_available callback for drm_driver is implemented at I915.
Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm/i915/i915_drv.h | 3 +++
drivers/gpu/drm/i915/i915_gem.c | 17 +++++++++++++++++
3 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f7385abdd74b..8889e635d17d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2773,6 +2773,7 @@ static struct drm_driver driver = {
.get_scanout_position = i915_get_crtc_scanoutpos,
.dumb_create = i915_gem_dumb_create,
+ .dumb_size_available = i915_gem_dumb_size_available,
.dumb_map_offset = i915_gem_dumb_mmap_offset,
.ioctls = i915_ioctls,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e7be4c3e43c6..c6912453be67 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1865,6 +1865,9 @@ i915_mutex_lock_interruptible(struct drm_device *dev)
int i915_gem_dumb_create(struct drm_file *file_priv,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
+int i915_gem_dumb_size_available(struct drm_file *file_priv,
+ struct drm_device *dev,
+ uint64_t *avail_size);
int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 94f993e4c12f..b8fbc4af7e6d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -277,6 +277,23 @@ i915_gem_dumb_create(struct drm_file *file,
&args->size, &args->handle);
}
+int i915_gem_dumb_size_available(struct drm_file *file,
+ struct drm_device *dev, uint64_t *avail_size)
+{
+ enum intel_memory_type mem_type = HAS_LMEM(to_i915(dev)) ?
+ INTEL_MEMORY_LOCAL :
+ INTEL_MEMORY_SYSTEM;
+ struct intel_memory_region *mr;
+
+ mr = intel_memory_region_by_type(to_i915(dev), mem_type);
+ if (!mr)
+ return -EINVAL;
+
+ *avail_size = mr->avail;
+
+ return 0;
+}
+
/**
* Creates a new mm object and returns a handle to it.
* @dev: drm device pointer
--
2.20.1
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