[PATCH libdrm 3/4] amdgpu: use the high VA range if possible v2

[ckoenig.leichtzumerken@xxxxxxxxx (Christian König)]

Retire the low range on Vega10 this frees up everything below 0xffff800000000000 for HMM.

v2: keep the 32bit range working.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 amdgpu/amdgpu_device.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/amdgpu/amdgpu_device.c b/amdgpu/amdgpu_device.c
index d7077184..a0d01727 100644
--- a/amdgpu/amdgpu_device.c
+++ b/amdgpu/amdgpu_device.c
@@ -264,13 +264,23 @@ int amdgpu_device_initialize(int fd,
 		goto cleanup;
 	}
 
-	start = dev->dev_info.virtual_address_offset;
-	max = MIN2(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 = dev->dev_info.virtual_address_offset;
+		max = dev->dev_info.virtual_address_max;
+	}
+
+	max = MIN2(max, (start & ~0xffffffff) + 0x100000000ULL);
 	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);
+	start = max;
+	if (dev->dev_info.high_va_offset && dev->dev_info.high_va_max)
+		max = dev->dev_info.high_va_max;
+	else
+		max = dev->dev_info.virtual_address_max;
 	amdgpu_vamgr_init(&dev->vamgr, start, max,
 			  dev->dev_info.virtual_address_alignment);
 
-- 
2.11.0