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drm/amdgpu/powerplay: add support for BACO on Iceland

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This adds BACO support for Iceland asics.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2019-02-15 11:56:56 -05:00
parent cefada559b
commit f07fb0244f
1 changed files with 48 additions and 6 deletions
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54
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_baco.c
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@@ -152,6 +152,36 @@ static const struct baco_cmd_entry clean_baco_tbl[] =
{ CMD_WRITE, mmBIOS_SCRATCH_7, 0, 0, 0, 0 }
};
static const struct baco_cmd_entry gpio_tbl_iceland[] =
{
{ CMD_WRITE, mmGPIOPAD_EN, 0, 0, 0, 0x0 },
{ CMD_WRITE, mmGPIOPAD_PD_EN, 0, 0, 0, 0x0 },
{ CMD_WRITE, mmGPIOPAD_PU_EN, 0, 0, 0, 0x0 },
{ CMD_WRITE, mmGPIOPAD_MASK, 0, 0, 0, 0xff77ffff }
};
static const struct baco_cmd_entry exit_baco_tbl_iceland[] =
{
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x01 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, BACO_CNTL__BACO_BCLK_OFF__SHIFT, 0, 0x00 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, BACO_CNTL__BACO_POWER_OFF__SHIFT, 0, 0x00 },
{ CMD_DELAY_MS, 0, 0, 0, 20, 0 },
{ CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_BF_MASK, 0, 0xffffffff, 0x200 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, BACO_CNTL__BACO_ISO_DIS__SHIFT, 0, 0x01 },
{ CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_MASK, 0, 5, 0x1c00 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, BACO_CNTL__BACO_ANA_ISO_DIS__SHIFT, 0, 0x01 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, BACO_CNTL__BACO_BIF_SCLK_SWITCH__SHIFT, 0, 0x00 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x00 },
{ CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__RCU_BIF_CONFIG_DONE_MASK, 0, 5, 0x100 },
{ CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_EN_MASK, BACO_CNTL__BACO_EN__SHIFT, 0, 0x00 },
{ CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_MODE_MASK, 0, 0xffffffff, 0x00 }
};
static const struct baco_cmd_entry clean_baco_tbl_iceland[] =
{
{ CMD_WRITE, mmBIOS_SCRATCH_7, 0, 0, 0, 0 }
};
int tonga_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap)
{
struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
@@ -195,7 +225,10 @@ int tonga_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state)
return 0;
if (state == BACO_STATE_IN) {
baco_program_registers(hwmgr, gpio_tbl, ARRAY_SIZE(gpio_tbl));
if (hwmgr->chip_id == CHIP_TOPAZ)
baco_program_registers(hwmgr, gpio_tbl_iceland, ARRAY_SIZE(gpio_tbl_iceland));
else
baco_program_registers(hwmgr, gpio_tbl, ARRAY_SIZE(gpio_tbl));
baco_program_registers(hwmgr, enable_fb_req_rej_tbl,
ARRAY_SIZE(enable_fb_req_rej_tbl));
baco_program_registers(hwmgr, use_bclk_tbl, ARRAY_SIZE(use_bclk_tbl));
@@ -209,11 +242,20 @@ int tonga_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state)
/* HW requires at least 20ms between regulator off and on */
msleep(20);
/* Execute Hardware BACO exit sequence */
if (baco_program_registers(hwmgr, exit_baco_tbl,
ARRAY_SIZE(exit_baco_tbl))) {
if (baco_program_registers(hwmgr, clean_baco_tbl,
ARRAY_SIZE(clean_baco_tbl)))
return 0;
if (hwmgr->chip_id == CHIP_TOPAZ) {
if (baco_program_registers(hwmgr, exit_baco_tbl_iceland,
ARRAY_SIZE(exit_baco_tbl_iceland))) {
if (baco_program_registers(hwmgr, clean_baco_tbl_iceland,
ARRAY_SIZE(clean_baco_tbl_iceland)))
return 0;
}
} else {
if (baco_program_registers(hwmgr, exit_baco_tbl,
ARRAY_SIZE(exit_baco_tbl))) {
if (baco_program_registers(hwmgr, clean_baco_tbl,
ARRAY_SIZE(clean_baco_tbl)))
return 0;
}
}
}