[AMD Official Use Only - General]
> -Original Message-
> From: amd-gfx On Behalf Of
> Mario Limonciello
> Sent: Tuesday, February 28, 2023 12:43 PM
> To: amd-gfx@lists.freedesktop.org
> Cc: Peter Kopec ; Limonciello, Mario
>
> Subject: [PATCH v2 0/3] Adjust dGPU handling for BACO
>
> This series adjusts the handling for dGPUs when the system is going into
> s2idle. The intent is to match the following truth table below:
>
> +---+--+--
> +-+
> | | s2idle (no FADT) | s2idle (FADT)
> | deep
> |
> +---+--+--
> +-+
> | APU Prepare | 0| 0
> | 0 |
> | APU Suspend | Run | Run
> | Run
> |
> | BACO dGPU Prepare | 1 if suspended | 1 if suspended
> | 1
> if suspended |
> | BACO dGPU Suspend | Runtime suspend if prepare was 0 | Runtime
> suspend if prepare was 0 | S3 suspend if prepare was 0 |
> | BOCO dGPU Prepare | 1| 1
> | 1 if suspended
> |
For BOCO Prepare, it should be also "1 if suspsended" instead of "1" for s2idle
per patch1.
Do I miss anything?
BR
Evan
> | BOCO dGPU Suspend | Runtime suspend if prepare was 0 | Runtime
> suspend if prepare was 0 | S3 suspend if prepare was 0 |
> +---+--+--
> +-+
>
> That is BACO and BOCO are handled very similarly when system is doing
> s2idle.
>
> v1->v2:
> * Rework flags and flow
> * Try to do runtime suspend first, and if it fails do system suspend
>
> Mario Limonciello (3):
> drm/amd: Allow dGPUs that support BACO to use smart suspend
> drm/amd: Don't always set s3 for dGPUs in all sleep modes
> drm/amd: Add special handling for system s0ix state w/ dGPUs
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 11 +++---
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 44 +++-
>
> 2 files changed, 34 insertions(+), 21 deletions(-)
>
> --
> 2.34.1
