Am 21.06.2017 um 18:44 schrieb Alex Deucher:
> Use the kernel provided version.
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 19 +++----------------
> 1 file changed, 3 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 6c64551..b6efda1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -1032,19 +1032,6 @@ static unsigned int amdgpu_vga_set_decode(void *cookie, bool state)
> return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
> }
>
> -/**
> - * amdgpu_check_pot_argument - check that argument is a power of two
> - *
> - * @arg: value to check
> - *
> - * Validates that a certain argument is a power of two (all asics).
> - * Returns true if argument is valid.
> - */
> -static bool amdgpu_check_pot_argument(int arg)
> -{
> - return (arg & (arg - 1)) == 0;
> -}
> -
> static void amdgpu_check_block_size(struct amdgpu_device *adev)
> {
> /* defines number of bits in page table versus page directory,
> @@ -1078,7 +1065,7 @@ static void amdgpu_check_vm_size(struct amdgpu_device *adev)
> if (amdgpu_vm_size == -1)
> return;
>
> - if (!amdgpu_check_pot_argument(amdgpu_vm_size)) {
> + if (!is_power_of_2(amdgpu_vm_size)) {
> dev_warn(adev->dev, "VM size (%d) must be a power of 2\n",
> amdgpu_vm_size);
> goto def_value;
> @@ -1119,7 +1106,7 @@ static void amdgpu_check_arguments(struct amdgpu_device *adev)
> dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n",
> amdgpu_sched_jobs);
> amdgpu_sched_jobs = 4;
> - } else if (!amdgpu_check_pot_argument(amdgpu_sched_jobs)){
> + } else if (!is_power_of_2(amdgpu_sched_jobs)){
> dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n",
> amdgpu_sched_jobs);
> amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
> @@ -1139,7 +1126,7 @@ static void amdgpu_check_arguments(struct amdgpu_device *adev)
> amdgpu_check_block_size(adev);
>
> if (amdgpu_vram_page_split != -1 && (amdgpu_vram_page_split < 16 ||
> - !amdgpu_check_pot_argument(amdgpu_vram_page_split))) {
> + !is_power_of_2(amdgpu_vram_page_split))) {
> dev_warn(adev->dev, "invalid VRAM page split (%d)\n",
> amdgpu_vram_page_split);
> amdgpu_vram_page_split = 1024;
