diff options
| author | Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> | 2024-09-19 14:52:50 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-07 21:32:00 +0300 |
| commit | 212cc2411994c4a692c3e8c9d04592fd8b1b7108 (patch) | |
| tree | 63536c6f75c88ee52f4eb08b0e69a9cde6903434 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | |
| parent | 82e2ccaa46811356f1daaac2127da79ecd2442d4 (diff) | |
| download | linux-212cc2411994c4a692c3e8c9d04592fd8b1b7108.tar.xz | |
drm/amdgpu: Add PSP interface for NPS switch
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 8ef6bf7c6b65..cad153e333d8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -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; |