[PATCH 2/7] drm/amdgpu/vce: Align VCPU BO to nearest power of two

["Timur Kristóf" <timur.kristof@gmail.com>]

VCE accesses memory, including its firmware, through a BAR.
It works slightly differently on each generation.
In case of VCE1, the start address of this BAR is zero
and we can't change it due to the firmware validation mechanism.

Align the VCE VCPU BO to the nearest power of two after the
byte size of the BO in order to prevent it from crossing the
boundaries of its BAR.

Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index efdebd9c0a1f3..0658f13f0bdf7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -218,7 +218,8 @@ int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size)
 	if (!adev->vce.fw)
 		return -ENOENT;
 
-	r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
+	r = amdgpu_bo_create_kernel(adev, size,
+				    roundup_pow_of_two(size),
 				    AMDGPU_GEM_DOMAIN_VRAM |
 				    AMDGPU_GEM_DOMAIN_GTT,
 				    &adev->vce.vcpu_bo,
-- 
2.53.0