diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2018-02-23 16:32:55 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-05 15:39:36 -0500 |
| commit | 40cee3b9e50fd725e4fb3338814762cbf5013fbc (patch) | |
| tree | cfab5825f4608e3d4ac65e3aef41dcd801e6999d /drivers/gpu/drm/amd | |
| parent | 31bc45de132a2af9861622eb36764bf375c68cb4 (diff) | |
| download | linux-40cee3b9e50fd725e4fb3338814762cbf5013fbc.tar.bz2 | |
drm/amd/pp: Add a helper to set field in u32
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 2 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c index 2c7bb056e57d..aea107643859 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c @@ -64,6 +64,22 @@ uint16_t convert_to_vddc(uint8_t vid) return (uint16_t) ((6200 - (vid * 25)) / VOLTAGE_SCALE); } +uint32_t phm_set_field_to_u32(u32 offset, u32 original_data, u32 field, u32 size) +{ + u32 mask = 0; + u32 shift = 0; + + shift = (offset % 4) << 3; + if (size == sizeof(uint8_t)) + mask = 0xFF << shift; + else if (size == sizeof(uint16_t)) + mask = 0xFFFF << shift; + + original_data &= ~mask; + original_data |= (field << shift); + return original_data; +} + static int phm_thermal_l2h_irq(void *private_data, unsigned src_id, const uint32_t *iv_entry) { diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h index ae73956de533..2dc2e2c20a3a 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h +++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h @@ -829,6 +829,8 @@ extern int rv_init_function_pointers(struct pp_hwmgr *hwmgr); extern int phm_get_voltage_evv_on_sclk(struct pp_hwmgr *hwmgr, uint8_t voltage_type, uint32_t sclk, uint16_t id, uint16_t *voltage); +extern uint32_t phm_set_field_to_u32(u32 offset, u32 original_data, u32 field, u32 size); + #define PHM_ENTIRE_REGISTER_MASK 0xFFFFFFFFU #define PHM_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT |