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/*
* Copyright 2012 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <drm/drmP.h>
#include "radeon.h"
#include "sumod.h"
#include "sumo_dpm.h"
#include "ppsmc.h"
#define SUMO_SMU_SERVICE_ROUTINE_PG_INIT 1
#define SUMO_SMU_SERVICE_ROUTINE_ALTVDDNB_NOTIFY 27
#define SUMO_SMU_SERVICE_ROUTINE_GFX_SRV_ID_20 20
struct sumo_power_info *sumo_get_pi(struct radeon_device *rdev);
static void sumo_send_msg_to_smu(struct radeon_device *rdev, u32 id)
{
u32 gfx_int_req;
int i;
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(GFX_INT_STATUS) & INT_DONE)
break;
udelay(1);
}
gfx_int_req = SERV_INDEX(id) | INT_REQ;
WREG32(GFX_INT_REQ, gfx_int_req);
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(GFX_INT_REQ) & INT_REQ)
break;
udelay(1);
}
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(GFX_INT_STATUS) & INT_ACK)
break;
udelay(1);
}
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(GFX_INT_STATUS) & INT_DONE)
break;
udelay(1);
}
gfx_int_req &= ~INT_REQ;
WREG32(GFX_INT_REQ, gfx_int_req);
}
void sumo_initialize_m3_arb(struct radeon_device *rdev)
{
struct sumo_power_info *pi = sumo_get_pi(rdev);
u32 i;
if (!pi->enable_dynamic_m3_arbiter)
return;
for (i = 0; i < NUMBER_OF_M3ARB_PARAM_SETS; i++)
WREG32_RCU(MCU_M3ARB_PARAMS + (i * 4),
pi->sys_info.csr_m3_arb_cntl_default[i]);
for (; i < NUMBER_OF_M3ARB_PARAM_SETS * 2; i++)
WREG32_RCU(MCU_M3ARB_PARAMS + (i * 4),
pi->sys_info.csr_m3_arb_cntl_uvd[i % NUMBER_OF_M3ARB_PARAM_SETS]);
for (; i < NUMBER_OF_M3ARB_PARAM_SETS * 3; i++)
WREG32_RCU(MCU_M3ARB_PARAMS + (i * 4),
pi->sys_info.csr_m3_arb_cntl_fs3d[i % NUMBER_OF_M3ARB_PARAM_SETS]);
}
static bool sumo_is_alt_vddnb_supported(struct radeon_device *rdev)
{
struct sumo_power_info *pi = sumo_get_pi(rdev);
bool return_code = false;
if (!pi->enable_alt_vddnb)
return return_code;
if ((rdev->family == CHIP_SUMO) || (rdev->family == CHIP_SUMO2)) {
if (pi->fw_version >= 0x00010C00)
return_code = true;
}
return return_code;
}
void sumo_smu_notify_alt_vddnb_change(struct radeon_device *rdev,
bool powersaving, bool force_nbps1)
{
u32 param = 0;
if (!sumo_is_alt_vddnb_supported(rdev))
return;
if (powersaving)
param |= 1;
if (force_nbps1)
param |= 2;
WREG32_RCU(RCU_ALTVDDNB_NOTIFY, param);
sumo_send_msg_to_smu(rdev, SUMO_SMU_SERVICE_ROUTINE_ALTVDDNB_NOTIFY);
}
void sumo_smu_pg_init(struct radeon_device *rdev)
{
sumo_send_msg_to_smu(rdev, SUMO_SMU_SERVICE_ROUTINE_PG_INIT);
}
static u32 sumo_power_of_4(u32 unit)
{
u32 ret = 1;
u32 i;
for (i = 0; i < unit; i++)
ret *= 4;
return ret;
}
void sumo_enable_boost_timer(struct radeon_device *rdev)
{
struct sumo_power_info *pi = sumo_get_pi(rdev);
u32 period, unit, timer_value;
u32 xclk = radeon_get_xclk(rdev);
unit = (RREG32_RCU(RCU_LCLK_SCALING_CNTL) & LCLK_SCALING_TIMER_PRESCALER_MASK)
>> LCLK_SCALING_TIMER_PRESCALER_SHIFT;
period = 100 * (xclk / 100 / sumo_power_of_4(unit));
timer_value = (period << 16) | (unit << 4);
WREG32_RCU(RCU_GNB_PWR_REP_TIMER_CNTL, timer_value);
WREG32_RCU(RCU_BOOST_MARGIN, pi->sys_info.sclk_dpm_boost_margin);
WREG32_RCU(RCU_THROTTLE_MARGIN, pi->sys_info.sclk_dpm_throttle_margin);
WREG32_RCU(GNB_TDP_LIMIT, pi->sys_info.gnb_tdp_limit);
WREG32_RCU(RCU_SclkDpmTdpLimitPG, pi->sys_info.sclk_dpm_tdp_limit_pg);
sumo_send_msg_to_smu(rdev, SUMO_SMU_SERVICE_ROUTINE_GFX_SRV_ID_20);
}
void sumo_set_tdp_limit(struct radeon_device *rdev, u32 index, u32 tdp_limit)
{
u32 regoffset = 0;
u32 shift = 0;
u32 mask = 0xFFF;
u32 sclk_dpm_tdp_limit;
switch (index) {
case 0:
regoffset = RCU_SclkDpmTdpLimit01;
shift = 16;
break;
case 1:
regoffset = RCU_SclkDpmTdpLimit01;
shift = 0;
break;
case 2:
regoffset = RCU_SclkDpmTdpLimit23;
shift = 16;
break;
case 3:
regoffset = RCU_SclkDpmTdpLimit23;
shift = 0;
break;
case 4:
regoffset = RCU_SclkDpmTdpLimit47;
shift = 16;
break;
case 7:
regoffset = RCU_SclkDpmTdpLimit47;
shift = 0;
break;
default:
break;
}
sclk_dpm_tdp_limit = RREG32_RCU(regoffset);
sclk_dpm_tdp_limit &= ~(mask << shift);
sclk_dpm_tdp_limit |= (tdp_limit << shift);
WREG32_RCU(regoffset, sclk_dpm_tdp_limit);
}
void sumo_boost_state_enable(struct radeon_device *rdev, bool enable)
{
u32 boost_disable = RREG32_RCU(RCU_GPU_BOOST_DISABLE);
boost_disable &= 0xFFFFFFFE;
boost_disable |= (enable ? 0 : 1);
WREG32_RCU(RCU_GPU_BOOST_DISABLE, boost_disable);
}
u32 sumo_get_running_fw_version(struct radeon_device *rdev)
{
return RREG32_RCU(RCU_FW_VERSION);
}
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