drm/amdgpu: implement the allocation range (v3)

Pass a ttm_placement pointer to amdgpu_bo_create_restricted
add min_offset to amdgpu_bo_pin_restricted.  This makes it
easier to allocate memory with address restrictions.  With
this patch we can also enable 2-ended allocation again.

v2: fix rebase conflicts
v3: memset placements before using

Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 80f0bea52e33..8eb5c5529304 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -43,6 +43,7 @@
 #include <ttm/ttm_execbuf_util.h>
 
 #include <drm/drm_gem.h>
+#include <drm/amdgpu_drm.h>
 
 #include "amd_shared.h"
 #include "amdgpu_family.h"
@@ -542,12 +543,14 @@ struct amdgpu_bo_va {
         struct amdgpu_bo                *bo;
 };
 
+#define AMDGPU_GEM_DOMAIN_MAX           0x3
+
 struct amdgpu_bo {
         /* Protected by gem.mutex */
         struct list_head                list;
         /* Protected by tbo.reserved */
         u32                             initial_domain;
-        struct ttm_place                placements[4];
+        struct ttm_place                placements[AMDGPU_GEM_DOMAIN_MAX + 1];
         struct ttm_placement            placement;
         struct ttm_buffer_object        tbo;
         struct ttm_bo_kmap_obj          kmap;