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| author | Evan Quan <evan.quan@amd.com> | 2019-09-11 19:35:45 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-09-16 10:10:58 -0500 |
| commit | 0e0b89c0d7cd1d7a53d0e7538a9d07c5692cf04d (patch) | |
| tree | 7bd165bfdbc4cbb8db624aa4de7427ef2f930dd6 /drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | |
| parent | d950800e793cf06a8e261737d2d8b0114ab3351b (diff) | |
| download | linux-0e0b89c0d7cd1d7a53d0e7538a9d07c5692cf04d.tar.bz2 | |
drm/amd/powerplay: properly set mp1 state for SW SMU suspend/reset routine
Set mp1 state properly for SW SMU suspend/reset routine.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amdgpu_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index 03896e667c14..be01b88db3ec 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -1788,6 +1788,46 @@ int smu_force_clk_levels(struct smu_context *smu, return ret; } +int smu_set_mp1_state(struct smu_context *smu, + enum pp_mp1_state mp1_state) +{ + uint16_t msg; + int ret; + + /* + * The SMC is not fully ready. That may be + * expected as the IP may be masked. + * So, just return without error. + */ + if (!smu->pm_enabled) + return 0; + + switch (mp1_state) { + case PP_MP1_STATE_SHUTDOWN: + msg = SMU_MSG_PrepareMp1ForShutdown; + break; + case PP_MP1_STATE_UNLOAD: + msg = SMU_MSG_PrepareMp1ForUnload; + break; + case PP_MP1_STATE_RESET: + msg = SMU_MSG_PrepareMp1ForReset; + break; + case PP_MP1_STATE_NONE: + default: + return 0; + } + + /* some asics may not support those messages */ + if (smu_msg_get_index(smu, msg) < 0) + return 0; + + ret = smu_send_smc_msg(smu, msg); + if (ret) + pr_err("[PrepareMp1] Failed!\n"); + + return ret; +} + const struct amd_ip_funcs smu_ip_funcs = { .name = "smu", .early_init = smu_early_init, |