[PATCH 1/5] drm/amdgpu: use gmc_v7_0_is_idle() since it is available under GMC7

[Alex Deucher]

Applied 1-4 with some minor fixes.

Alex

On Sat, Mar 22, 2025 at 3:03 PM Alexandre Demers
<alexandre.f.demers at gmail.com> wrote:
>
> gmc_v7_0_is_idle() does exactly what we need, so use it.
>
> Signed-off-by: Alexandre Demers <alexandre.f.demers at gmail.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 9 +--------
>  1 file changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> index b6016f11956e..1a8df3caedb1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> @@ -1156,17 +1156,10 @@ static bool gmc_v7_0_is_idle(void *handle)
>  static int gmc_v7_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
>  {
>         unsigned int i;
> -       u32 tmp;
>         struct amdgpu_device *adev = ip_block->adev;
>
>         for (i = 0; i < adev->usec_timeout; i++) {
> -               /* read MC_STATUS */
> -               tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
> -                                              SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
> -                                              SRBM_STATUS__MCC_BUSY_MASK |
> -                                              SRBM_STATUS__MCD_BUSY_MASK |
> -                                              SRBM_STATUS__VMC_BUSY_MASK);
> -               if (!tmp)
> +               if (gmc_v7_0_is_idle(adev))
>                         return 0;
>                 udelay(1);
>         }
> --
> 2.49.0
>