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drm/amdgpu: Add PSP interface for NPS switch

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Implement PSP ring command interface for memory partitioning on the fly
on the supported asics.

Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rajneesh Bhardwaj
2024-09-19 17:22:50 +05:30
committed by Alex Deucher
parent 82e2ccaa46
commit 212cc24119
3 changed files with 37 additions and 3 deletions
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25
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@@ -1045,6 +1045,31 @@ static int psp_rl_load(struct amdgpu_device *adev)
return ret;
}
int psp_memory_partition(struct psp_context *psp, int mode)
{
struct psp_gfx_cmd_resp *cmd;
int ret;
if (amdgpu_sriov_vf(psp->adev))
return 0;
cmd = acquire_psp_cmd_buf(psp);
cmd->cmd_id = GFX_CMD_ID_FB_NPS_MODE;
cmd->cmd.cmd_memory_part.mode = mode;
dev_info(psp->adev->dev,
"Requesting %d memory partition change through PSP", mode);
ret = psp_cmd_submit_buf(psp, NULL, cmd, psp->fence_buf_mc_addr);
if (ret)
dev_err(psp->adev->dev,
"PSP request failed to change to NPS%d mode\n", mode);
release_psp_cmd_buf(psp);
return ret;
}
int psp_spatial_partition(struct psp_context *psp, int mode)
{
struct psp_gfx_cmd_resp *cmd;