Am 30.08.2017 um 08:46 schrieb Michel Dänzer:
On 30/08/17 03:42 PM, Michel Dänzer wrote:
On 30/08/17 03:09 PM, Christian König wrote:
Am 29.08.2017 um 19:20 schrieb Deucher, Alexander:
From: amd-gfx [mailto:[email protected]] On Behalf
Of Christian König
@@ -89,6 +89,8 @@ extern "C" {
#define AMDGPU_GEM_CREATE_SHADOW (1 << 4)
/* Flag that allocating the BO should use linear VRAM */
#define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS (1 << 5)
+/* Flag that BO is local in the VM */
+#define AMDGPU_GEM_CREATE_LOCAL (1 << 6)
I'm not crazy about the name LOCAL. Maybe something like ALWAYS_VALID?
Works for me as well. Dave any other opinion?
If everybody is ok with ALWAYS_VALID I'm going to use that one.
FWIW, I like LOCAL better than ALWAYS_VALID. The latter suggests that
the BO is valid under any circumstances, whereas LOCAL indicates that it
cannot be used outside of the GPUVM it was created in.
I don't feel strongly about it though, feel free to go with either.
Another idea:
/* The BO can only be used in the VM it was created in */
#define AMDGPU_GEM_CREATE_UNSHAREABLE (1 << 6)
That in turn doesn't note that it is always available.
Additional to that I only limited sharing the BO because of the bad
performance and memory usage. In theory we could share them pretty well.
How about VM_LOCAL ?
Christian.
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