[PATCH 20/28] drm/i915: mark stolen as private

Matthew Auld matthew.auld at intel.com
Wed Apr 7 13:02:33 UTC 2021


In the next patch we want to expose the supported regions to userspace,
which can then be fed into the gem_create_ext placement extensions. For
now treat stolen memory as private from userspace pov.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 3 +++
 drivers/gpu/drm/i915/intel_memory_region.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index 49a2dfcc8ba7..8744942c6bad 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -721,6 +721,9 @@ static int init_stolen(struct intel_memory_region *mem)
 			return -EIO;
 	}
 
+	/* For now opt for not exposing to userspace */
+	mem->private = true;
+
 	/*
 	 * Initialise stolen early so that we may reserve preallocated
 	 * objects for the BIOS to KMS transition.
diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
index 4c8ec15af55f..942fc4f68764 100644
--- a/drivers/gpu/drm/i915/intel_memory_region.h
+++ b/drivers/gpu/drm/i915/intel_memory_region.h
@@ -86,6 +86,7 @@ struct intel_memory_region {
 	u16 instance;
 	enum intel_region_id id;
 	char name[16];
+	bool private; /* not for userspace */
 
 	struct list_head reserved;
 
-- 
2.26.3



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