Hi Greg,

attached is the requested patch, rebased on top of current linux.3.15.y stable tree.

Thanks,
Christian.

Am 07.07.2014 19:57, schrieb [email protected]:
The patch below does not apply to the 3.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

 From 7dae77f8809a81b0dc5195debae8fd78cbbcc550 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <[email protected]>
Date: Wed, 2 Jul 2014 21:28:10 +0200
Subject: [PATCH] drm/radeon: page table BOs are kernel allocations
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Userspace shouldn't be able to access them.

Signed-off-by: Christian König <[email protected]>
Cc: [email protected]
Signed-off-by: Alex Deucher <[email protected]>

diff --git a/drivers/gpu/drm/radeon/radeon_vm.c 
b/drivers/gpu/drm/radeon/radeon_vm.c
index 899d9126cad6..eecff6bbd341 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -495,7 +495,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                mutex_unlock(&vm->mutex);
r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8,
-                                    RADEON_GPU_PAGE_SIZE, false,
+                                    RADEON_GPU_PAGE_SIZE, true,
                                     RADEON_GEM_DOMAIN_VRAM, NULL, &pt);
                if (r)
                        return r;
@@ -992,7 +992,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct 
radeon_vm *vm)
                return -ENOMEM;
        }
- r = radeon_bo_create(rdev, pd_size, align, false,
+       r = radeon_bo_create(rdev, pd_size, align, true,
                             RADEON_GEM_DOMAIN_VRAM, NULL,
                             &vm->page_directory);
        if (r)


>From 81bface470e3b6518249e331afc28246b6465be6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <[email protected]>
Date: Wed, 2 Jul 2014 21:28:10 +0200
Subject: [PATCH] drm/radeon: page table BOs are kernel allocations v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Userspace shouldn't be able to access them.

v2: rebased on 3.15

Signed-off-by: Christian König <[email protected]>
Cc: [email protected]
Signed-off-by: Alex Deucher <[email protected]>
---
 drivers/gpu/drm/radeon/radeon_vm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index c11b71d..c8c48aa 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -493,7 +493,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
 		mutex_unlock(&vm->mutex);
 
 		r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8,
-				     RADEON_GPU_PAGE_SIZE, false, 
+				     RADEON_GPU_PAGE_SIZE, true,
 				     RADEON_GEM_DOMAIN_VRAM, NULL, &pt);
 		if (r)
 			return r;
@@ -913,7 +913,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
 		return -ENOMEM;
 	}
 
-	r = radeon_bo_create(rdev, pd_size, RADEON_VM_PTB_ALIGN_SIZE, false,
+	r = radeon_bo_create(rdev, pd_size, RADEON_VM_PTB_ALIGN_SIZE, true,
 			     RADEON_GEM_DOMAIN_VRAM, NULL,
 			     &vm->page_directory);
 	if (r)
-- 
1.9.1

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