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amdgpu: use the high VA range if possible 

This frees up the low range for HMM.

Signed-off-by: Christian König <christian.koenig@amd.com>
main
Christian König 2017-11-07 15:31:45 +01:00
parent 944f6665de
commit 6c0ea4b0c5
2 changed files with 11 additions and 2 deletions
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9
amdgpu/amdgpu_device.c
View File

@ -275,8 +275,13 @@ int amdgpu_device_initialize(int fd,
amdgpu_vamgr_init(&dev->vamgr_32, start, max,
dev->dev_info.virtual_address_alignment);
start = MAX2(dev->dev_info.virtual_address_offset, 0x100000000ULL);
max = MAX2(dev->dev_info.virtual_address_max, 0x100000000ULL);
if (dev->dev_info.high_va_offset && dev->dev_info.high_va_max) {
start = dev->dev_info.high_va_offset;
max = dev->dev_info.high_va_max;
} else {
start = MAX2(dev->dev_info.virtual_address_offset, 0x100000000ULL);
max = MAX2(dev->dev_info.virtual_address_max, 0x100000000ULL);
}
amdgpu_vamgr_init(&dev->vamgr, start, max,
dev->dev_info.virtual_address_alignment);

4
include/drm/amdgpu_drm.h
View File

@ -869,6 +869,10 @@ struct drm_amdgpu_info_device {
__u32 _pad1;
/* always on cu bitmap */
__u32 cu_ao_bitmap[4][4];
/** Starting high virtual address for UMDs. */
__u64 high_va_offset;
/** The maximum high virtual address */
__u64 high_va_max;
};
struct drm_amdgpu_info_hw_ip {