diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/radeon/sumo_smc.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/radeon/sumo_smc.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/radeon/sumo_smc.c b/kernel/drivers/gpu/drm/radeon/sumo_smc.c new file mode 100644 index 000000000..fb081d2ae --- /dev/null +++ b/kernel/drivers/gpu/drm/radeon/sumo_smc.c @@ -0,0 +1,221 @@ +/* + * 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 "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); +} + |