diff options
| author | Eric Huang <JinHuiEric.Huang@amd.com> | 2016-05-24 15:11:17 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-07-07 14:50:55 -0400 |
| commit | f2bdc05f773ea68d31e2d50b9e791b7c7dcd1dfa (patch) | |
| tree | c96bdf08a1ad3d8c22a8475779996aa8cb869ff7 /drivers/gpu/drm/amd/powerplay | |
| parent | 6bb6b2972d0affe1f86881d64c787627b916c17e (diff) | |
| download | linux-f2bdc05f773ea68d31e2d50b9e791b7c7dcd1dfa.tar.bz2 | |
drm/amdgpu: add the common code to support mclk OD
This implements mclk OverDrive(OD) through sysfs.
The new entry pp_mclk_od is read/write. The value of input/output
is an integer of the overclocking percentage.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 40 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 2 |
3 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index 8fa6f594d3ad..e931e87757de 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -848,6 +848,44 @@ static int pp_dpm_set_sclk_od(void *handle, uint32_t value) return hwmgr->hwmgr_func->set_sclk_od(hwmgr, value); } +static int pp_dpm_get_mclk_od(void *handle) +{ + struct pp_hwmgr *hwmgr; + + if (!handle) + return -EINVAL; + + hwmgr = ((struct pp_instance *)handle)->hwmgr; + + PP_CHECK_HW(hwmgr); + + if (hwmgr->hwmgr_func->get_mclk_od == NULL) { + printk(KERN_INFO "%s was not implemented.\n", __func__); + return 0; + } + + return hwmgr->hwmgr_func->get_mclk_od(hwmgr); +} + +static int pp_dpm_set_mclk_od(void *handle, uint32_t value) +{ + struct pp_hwmgr *hwmgr; + + if (!handle) + return -EINVAL; + + hwmgr = ((struct pp_instance *)handle)->hwmgr; + + PP_CHECK_HW(hwmgr); + + if (hwmgr->hwmgr_func->set_mclk_od == NULL) { + printk(KERN_INFO "%s was not implemented.\n", __func__); + return 0; + } + + return hwmgr->hwmgr_func->set_mclk_od(hwmgr, value); +} + const struct amd_powerplay_funcs pp_dpm_funcs = { .get_temperature = pp_dpm_get_temperature, .load_firmware = pp_dpm_load_fw, @@ -872,6 +910,8 @@ const struct amd_powerplay_funcs pp_dpm_funcs = { .print_clock_levels = pp_dpm_print_clock_levels, .get_sclk_od = pp_dpm_get_sclk_od, .set_sclk_od = pp_dpm_set_sclk_od, + .get_mclk_od = pp_dpm_get_mclk_od, + .set_mclk_od = pp_dpm_set_mclk_od, }; static int amd_pp_instance_init(struct amd_pp_init *pp_init, diff --git a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h index de1d6a81a6a4..d0dfaf9dfa06 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h +++ b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h @@ -345,6 +345,8 @@ struct amd_powerplay_funcs { int (*print_clock_levels)(void *handle, enum pp_clock_type type, char *buf); int (*get_sclk_od)(void *handle); int (*set_sclk_od)(void *handle, uint32_t value); + int (*get_mclk_od)(void *handle); + int (*set_mclk_od)(void *handle, uint32_t value); }; struct amd_powerplay { diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h index 3d9a413cf9c8..bcb224b01584 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h +++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h @@ -340,6 +340,8 @@ struct pp_hwmgr_func { int (*enable_per_cu_power_gating)(struct pp_hwmgr *hwmgr, bool enable); int (*get_sclk_od)(struct pp_hwmgr *hwmgr); int (*set_sclk_od)(struct pp_hwmgr *hwmgr, uint32_t value); + int (*get_mclk_od)(struct pp_hwmgr *hwmgr); + int (*set_mclk_od)(struct pp_hwmgr *hwmgr, uint32_t value); }; struct pp_table_func { |