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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>
This commit is contained in:
Rex Zhu 2018-02-23 16:32:55 +08:00 committed by Alex Deucher
parent 31bc45de13
commit 40cee3b9e5
2 changed files with 18 additions and 0 deletions
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16
drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
View File

@ -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)
{

2
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
View File

@ -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