From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 20 Mar 2012 21:18:38 +0000 (-0400)
Subject: drm/radeon/kms/vm: set vram base offset properly for TN
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=e71270fd80e99211a704c981c0f48d4e02a33473;p=~shefty%2Frdma-dev.git

drm/radeon/kms/vm: set vram base offset properly for TN

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 833892f1f48..bae3ec332b4 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1746,7 +1746,12 @@ int cayman_vm_init(struct radeon_device *rdev)
 	/* number of VMs */
 	rdev->vm_manager.nvm = 8;
 	/* base offset of vram pages */
-	rdev->vm_manager.vram_base_offset = 0;
+	if (rdev->flags & RADEON_IS_IGP) {
+		u64 tmp = RREG32(FUS_MC_VM_FB_OFFSET);
+		tmp <<= 22;
+		rdev->vm_manager.vram_base_offset = tmp;
+	} else
+		rdev->vm_manager.vram_base_offset = 0;
 	return 0;
 }