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    Subject[PATCH 5.9 325/391] drm/amdgpu: increase the reserved VM size to 2MB
    Date
    From: Christian König <christian.koenig@amd.com>

    commit 55bb919be4e4973cd037a04f527ecc6686800437 upstream.

    Ideally this should be a multiple of the VM block size.
    2MB should at least fit for Vega/Navi.

    Signed-off-by: Christian König <christian.koenig@amd.com>
    Reviewed-by: Madhav Chauhan <madhav.chauhan@amd.com>
    Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
    +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
    @@ -112,8 +112,8 @@ struct amdgpu_bo_list_entry;
    #define AMDGPU_MMHUB_0 1
    #define AMDGPU_MMHUB_1 2

    -/* hardcode that limit for now */
    -#define AMDGPU_VA_RESERVED_SIZE (1ULL << 20)
    +/* Reserve 2MB at top/bottom of address space for kernel use */
    +#define AMDGPU_VA_RESERVED_SIZE (2ULL << 20)

    /* max vmids dedicated for process */
    #define AMDGPU_VM_MAX_RESERVED_VMID 1

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