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-rw-r--r--drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c16
-rw-r--r--drivers/gpu/drm/amd/powerplay/inc/hwmgr.h2
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