From: Tim Huang tim.huang@amd.com
commit f7f28f268b861c29dd18086bb636abedf0ff59ff upstream.
If the gfx imu is poweroff when suspend, then it need to be re-enabled when resume.
Signed-off-by: Tim Huang tim.huang@amd.com Reviewed-by: Yifan Zhang yifan1.zhang@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 40 +++++++++++++++++++++--------- 1 file changed, 28 insertions(+), 12 deletions(-)
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -161,10 +161,15 @@ int smu_get_dpm_freq_range(struct smu_co
int smu_set_gfx_power_up_by_imu(struct smu_context *smu) { - if (!smu->ppt_funcs || !smu->ppt_funcs->set_gfx_power_up_by_imu) - return -EOPNOTSUPP; + int ret = 0; + struct amdgpu_device *adev = smu->adev;
- return smu->ppt_funcs->set_gfx_power_up_by_imu(smu); + if (smu->ppt_funcs->set_gfx_power_up_by_imu) { + ret = smu->ppt_funcs->set_gfx_power_up_by_imu(smu); + if (ret) + dev_err(adev->dev, "Failed to enable gfx imu!\n"); + } + return ret; }
static u32 smu_get_mclk(void *handle, bool low) @@ -195,6 +200,19 @@ static u32 smu_get_sclk(void *handle, bo return clk_freq * 100; }
+static int smu_set_gfx_imu_enable(struct smu_context *smu) +{ + struct amdgpu_device *adev = smu->adev; + + if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) + return 0; + + if (amdgpu_in_reset(smu->adev) || adev->in_s0ix) + return 0; + + return smu_set_gfx_power_up_by_imu(smu); +} + static int smu_dpm_set_vcn_enable(struct smu_context *smu, bool enable) { @@ -1386,15 +1404,9 @@ static int smu_hw_init(void *handle) }
if (smu->is_apu) { - if ((smu->ppt_funcs->set_gfx_power_up_by_imu) && - likely(adev->firmware.load_type == AMDGPU_FW_LOAD_PSP)) { - ret = smu->ppt_funcs->set_gfx_power_up_by_imu(smu); - if (ret) { - dev_err(adev->dev, "Failed to Enable gfx imu!\n"); - return ret; - } - } - + ret = smu_set_gfx_imu_enable(smu); + if (ret) + return ret; smu_dpm_set_vcn_enable(smu, true); smu_dpm_set_jpeg_enable(smu, true); smu_set_gfx_cgpg(smu, true); @@ -1671,6 +1683,10 @@ static int smu_resume(void *handle) return ret; }
+ ret = smu_set_gfx_imu_enable(smu); + if (ret) + return ret; + smu_set_gfx_cgpg(smu, true);
smu->disable_uclk_switch = 0;