From: Huang Rui <ray.huang-5C7GfCeVMHo@public.gmane.org>
To: Grazvydas Ignotas <notasas-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "Deucher,
Alexander" <Alexander.Deucher-5C7GfCeVMHo@public.gmane.org>,
"amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Subject: Re: [PATCH 3/3] drm/amdgpu: fix to clear ASIC INIT COMPLETE bit on resuming phase
Date: Tue, 11 Apr 2017 11:41:20 +0800 [thread overview]
Message-ID: <20170411034119.GB16914@hr-amur2> (raw)
In-Reply-To: <CANOLnOOcnUitqWAWjtTEa0U69pEj5mFMMJZSHrKz5S_TQEcoDA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Mon, Apr 10, 2017 at 08:09:17PM +0800, Grazvydas Ignotas wrote:
> On Mon, Apr 10, 2017 at 12:37 PM, Huang Rui <ray.huang@amd.com> wrote:
>
> ASIC_INIT_COMPLETE bit must be cleared during S3 resuming phase,
> because VBIOS will check the bit to decide if execute ASIC_Init
> posting via kernel driver.
>
> Signed-off-by: Huang Rui <ray.huang@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 5 ++++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 6 +++++-
> 2 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm
> /amd/amdgpu/amdgpu_atombios.c
> index ad43299..b0dd72a8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> @@ -1727,8 +1727,11 @@ void amdgpu_atombios_scratch_regs_restore(struct
> amdgpu_device *adev)
> {
> int i;
>
> - for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
> + for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++) {
> + if (i == 7)
> + adev->bios_scratch[i] &=
> ~ATOM_S7_ASIC_INIT_COMPLETE_MASK;
>
>
> Maybe move this line before the loop?
> A comment may also be useful so that somebody doesn't delete the code again in
> future.
>
OK. I'm fine to move it before this loop.
/*
* VBIOS will check ASIC_INIT_COMPLETE bit to decide if
* execute ASIC_Init posting via driver
*/
adev->bios_scratch[7] &= ~ATOM_S7_ASIC_INIT_COMPLETE_MASK;
Thanks,
Rui
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next prev parent reply other threads:[~2017-04-11 3:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 9:37 [PATCH 1/3] drm/amd/powerplay: fix suspend error on DPM disabled Huang Rui
[not found] ` <1491817071-17014-1-git-send-email-ray.huang-5C7GfCeVMHo@public.gmane.org>
2017-04-10 9:37 ` [PATCH 2/3] drm/amdgpu: do not free fence buf when driver probes Huang Rui
2017-04-10 9:37 ` [PATCH 3/3] drm/amdgpu: fix to clear ASIC INIT COMPLETE bit on resuming phase Huang Rui
[not found] ` <1491817071-17014-3-git-send-email-ray.huang-5C7GfCeVMHo@public.gmane.org>
2017-04-10 12:09 ` Grazvydas Ignotas
[not found] ` <CANOLnOOcnUitqWAWjtTEa0U69pEj5mFMMJZSHrKz5S_TQEcoDA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-11 3:41 ` Huang Rui [this message]
2017-04-10 14:55 ` Deucher, Alexander
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