Will be used to fetch the fan speeds when manual fan mode is set. v2: squash in a Coverity fix from Colin Ian King
Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/pm/inc/smu_v11_0.h | 3 +++ .../gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 21 +++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h index 8307e2b790da..1f9575a4dfe7 100644 --- a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h +++ b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h @@ -203,6 +203,9 @@ smu_v11_0_set_fan_control_mode(struct smu_context *smu, int smu_v11_0_set_fan_speed_rpm(struct smu_context *smu, uint32_t speed); +int smu_v11_0_get_fan_speed_rpm(struct smu_context *smu, + uint32_t *speed); + int smu_v11_0_set_xgmi_pstate(struct smu_context *smu, uint32_t pstate); diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c index 5abc06f7c9f3..f5aeb0b5cf97 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c @@ -1153,6 +1153,27 @@ int smu_v11_0_set_fan_speed_rpm(struct smu_context *smu, return ret; } +int smu_v11_0_get_fan_speed_rpm(struct smu_context *smu, + uint32_t *speed) +{ + struct amdgpu_device *adev = smu->adev; + uint32_t tach_period, crystal_clock_freq; + uint64_t tmp64; + + tach_period = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL), + CG_TACH_CTRL, TARGET_PERIOD); + if (!tach_period) + return -EINVAL; + + crystal_clock_freq = amdgpu_asic_get_xclk(adev); + + tmp64 = (uint64_t)crystal_clock_freq * 60 * 10000; + do_div(tmp64, (tach_period * 8)); + *speed = (uint32_t)tmp64; + + return 0; +} + int smu_v11_0_set_xgmi_pstate(struct smu_context *smu, uint32_t pstate) { -- 2.25.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
