linux-stable/drivers/gpu/drm/radeon/rv770_smc.h
Alex Deucher fe78118c46 drm/radeon: protect concurrent smc register access with a spinlock
smc registers are access indirectly via the main mmio aperture, so
there may be problems with concurrent access.  This adds a spinlock
to protect access to this register space.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:28 -04:00

207 lines
6.6 KiB
C

/*
* Copyright 2011 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.
*
*/
#ifndef __RV770_SMC_H__
#define __RV770_SMC_H__
#include "ppsmc.h"
#pragma pack(push, 1)
#define RV770_SMC_TABLE_ADDRESS 0xB000
#define RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE 3
struct RV770_SMC_SCLK_VALUE
{
uint32_t vCG_SPLL_FUNC_CNTL;
uint32_t vCG_SPLL_FUNC_CNTL_2;
uint32_t vCG_SPLL_FUNC_CNTL_3;
uint32_t vCG_SPLL_SPREAD_SPECTRUM;
uint32_t vCG_SPLL_SPREAD_SPECTRUM_2;
uint32_t sclk_value;
};
typedef struct RV770_SMC_SCLK_VALUE RV770_SMC_SCLK_VALUE;
struct RV770_SMC_MCLK_VALUE
{
uint32_t vMPLL_AD_FUNC_CNTL;
uint32_t vMPLL_AD_FUNC_CNTL_2;
uint32_t vMPLL_DQ_FUNC_CNTL;
uint32_t vMPLL_DQ_FUNC_CNTL_2;
uint32_t vMCLK_PWRMGT_CNTL;
uint32_t vDLL_CNTL;
uint32_t vMPLL_SS;
uint32_t vMPLL_SS2;
uint32_t mclk_value;
};
typedef struct RV770_SMC_MCLK_VALUE RV770_SMC_MCLK_VALUE;
struct RV730_SMC_MCLK_VALUE
{
uint32_t vMCLK_PWRMGT_CNTL;
uint32_t vDLL_CNTL;
uint32_t vMPLL_FUNC_CNTL;
uint32_t vMPLL_FUNC_CNTL2;
uint32_t vMPLL_FUNC_CNTL3;
uint32_t vMPLL_SS;
uint32_t vMPLL_SS2;
uint32_t mclk_value;
};
typedef struct RV730_SMC_MCLK_VALUE RV730_SMC_MCLK_VALUE;
struct RV770_SMC_VOLTAGE_VALUE
{
uint16_t value;
uint8_t index;
uint8_t padding;
};
typedef struct RV770_SMC_VOLTAGE_VALUE RV770_SMC_VOLTAGE_VALUE;
union RV7XX_SMC_MCLK_VALUE
{
RV770_SMC_MCLK_VALUE mclk770;
RV730_SMC_MCLK_VALUE mclk730;
};
typedef union RV7XX_SMC_MCLK_VALUE RV7XX_SMC_MCLK_VALUE, *LPRV7XX_SMC_MCLK_VALUE;
struct RV770_SMC_HW_PERFORMANCE_LEVEL
{
uint8_t arbValue;
union{
uint8_t seqValue;
uint8_t ACIndex;
};
uint8_t displayWatermark;
uint8_t gen2PCIE;
uint8_t gen2XSP;
uint8_t backbias;
uint8_t strobeMode;
uint8_t mcFlags;
uint32_t aT;
uint32_t bSP;
RV770_SMC_SCLK_VALUE sclk;
RV7XX_SMC_MCLK_VALUE mclk;
RV770_SMC_VOLTAGE_VALUE vddc;
RV770_SMC_VOLTAGE_VALUE mvdd;
RV770_SMC_VOLTAGE_VALUE vddci;
uint8_t reserved1;
uint8_t reserved2;
uint8_t stateFlags;
uint8_t padding;
};
#define SMC_STROBE_RATIO 0x0F
#define SMC_STROBE_ENABLE 0x10
#define SMC_MC_EDC_RD_FLAG 0x01
#define SMC_MC_EDC_WR_FLAG 0x02
#define SMC_MC_RTT_ENABLE 0x04
#define SMC_MC_STUTTER_EN 0x08
typedef struct RV770_SMC_HW_PERFORMANCE_LEVEL RV770_SMC_HW_PERFORMANCE_LEVEL;
struct RV770_SMC_SWSTATE
{
uint8_t flags;
uint8_t padding1;
uint8_t padding2;
uint8_t padding3;
RV770_SMC_HW_PERFORMANCE_LEVEL levels[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE];
};
typedef struct RV770_SMC_SWSTATE RV770_SMC_SWSTATE;
#define RV770_SMC_VOLTAGEMASK_VDDC 0
#define RV770_SMC_VOLTAGEMASK_MVDD 1
#define RV770_SMC_VOLTAGEMASK_VDDCI 2
#define RV770_SMC_VOLTAGEMASK_MAX 4
struct RV770_SMC_VOLTAGEMASKTABLE
{
uint8_t highMask[RV770_SMC_VOLTAGEMASK_MAX];
uint32_t lowMask[RV770_SMC_VOLTAGEMASK_MAX];
};
typedef struct RV770_SMC_VOLTAGEMASKTABLE RV770_SMC_VOLTAGEMASKTABLE;
#define MAX_NO_VREG_STEPS 32
struct RV770_SMC_STATETABLE
{
uint8_t thermalProtectType;
uint8_t systemFlags;
uint8_t maxVDDCIndexInPPTable;
uint8_t extraFlags;
uint8_t highSMIO[MAX_NO_VREG_STEPS];
uint32_t lowSMIO[MAX_NO_VREG_STEPS];
RV770_SMC_VOLTAGEMASKTABLE voltageMaskTable;
RV770_SMC_SWSTATE initialState;
RV770_SMC_SWSTATE ACPIState;
RV770_SMC_SWSTATE driverState;
RV770_SMC_SWSTATE ULVState;
};
typedef struct RV770_SMC_STATETABLE RV770_SMC_STATETABLE;
#define PPSMC_STATEFLAG_AUTO_PULSE_SKIP 0x01
#pragma pack(pop)
#define RV770_SMC_SOFT_REGISTERS_START 0x104
#define RV770_SMC_SOFT_REGISTER_mclk_chg_timeout 0x0
#define RV770_SMC_SOFT_REGISTER_baby_step_timer 0x8
#define RV770_SMC_SOFT_REGISTER_delay_bbias 0xC
#define RV770_SMC_SOFT_REGISTER_delay_vreg 0x10
#define RV770_SMC_SOFT_REGISTER_delay_acpi 0x2C
#define RV770_SMC_SOFT_REGISTER_seq_index 0x64
#define RV770_SMC_SOFT_REGISTER_mvdd_chg_time 0x68
#define RV770_SMC_SOFT_REGISTER_mclk_switch_lim 0x78
#define RV770_SMC_SOFT_REGISTER_mc_block_delay 0x90
#define RV770_SMC_SOFT_REGISTER_uvd_enabled 0x9C
#define RV770_SMC_SOFT_REGISTER_is_asic_lombok 0xA0
int rv770_copy_bytes_to_smc(struct radeon_device *rdev,
u16 smc_start_address, const u8 *src,
u16 byte_count, u16 limit);
void rv770_start_smc(struct radeon_device *rdev);
void rv770_reset_smc(struct radeon_device *rdev);
void rv770_stop_smc_clock(struct radeon_device *rdev);
void rv770_start_smc_clock(struct radeon_device *rdev);
bool rv770_is_smc_running(struct radeon_device *rdev);
PPSMC_Result rv770_send_msg_to_smc(struct radeon_device *rdev, PPSMC_Msg msg);
PPSMC_Result rv770_wait_for_smc_inactive(struct radeon_device *rdev);
int rv770_read_smc_sram_dword(struct radeon_device *rdev,
u16 smc_address, u32 *value, u16 limit);
int rv770_write_smc_sram_dword(struct radeon_device *rdev,
u16 smc_address, u32 value, u16 limit);
int rv770_load_smc_ucode(struct radeon_device *rdev,
u16 limit);
#endif