1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/include/asm/hardware/cache-l2x0.h 4 * 5 * Copyright (C) 2007 ARM Limited 6 */ 7 8 #ifndef __ASM_ARM_HARDWARE_L2X0_H 9 #define __ASM_ARM_HARDWARE_L2X0_H 10 11 #include <linux/errno.h> 12 13 #define L2X0_CACHE_ID 0x000 14 #define L2X0_CACHE_TYPE 0x004 15 #define L2X0_CTRL 0x100 16 #define L2X0_AUX_CTRL 0x104 17 #define L310_TAG_LATENCY_CTRL 0x108 18 #define L310_DATA_LATENCY_CTRL 0x10C 19 #define L2X0_EVENT_CNT_CTRL 0x200 20 #define L2X0_EVENT_CNT1_CFG 0x204 21 #define L2X0_EVENT_CNT0_CFG 0x208 22 #define L2X0_EVENT_CNT1_VAL 0x20C 23 #define L2X0_EVENT_CNT0_VAL 0x210 24 #define L2X0_INTR_MASK 0x214 25 #define L2X0_MASKED_INTR_STAT 0x218 26 #define L2X0_RAW_INTR_STAT 0x21C 27 #define L2X0_INTR_CLEAR 0x220 28 #define L2X0_CACHE_SYNC 0x730 29 #define L2X0_DUMMY_REG 0x740 30 #define L2X0_INV_LINE_PA 0x770 31 #define L2X0_INV_WAY 0x77C 32 #define L2X0_CLEAN_LINE_PA 0x7B0 33 #define L2X0_CLEAN_LINE_IDX 0x7B8 34 #define L2X0_CLEAN_WAY 0x7BC 35 #define L2X0_CLEAN_INV_LINE_PA 0x7F0 36 #define L2X0_CLEAN_INV_LINE_IDX 0x7F8 37 #define L2X0_CLEAN_INV_WAY 0x7FC 38 /* 39 * The lockdown registers repeat 8 times for L310, the L210 has only one 40 * D and one I lockdown register at 0x0900 and 0x0904. 41 */ 42 #define L2X0_LOCKDOWN_WAY_D_BASE 0x900 43 #define L2X0_LOCKDOWN_WAY_I_BASE 0x904 44 #define L2X0_LOCKDOWN_STRIDE 0x08 45 #define L310_ADDR_FILTER_START 0xC00 46 #define L310_ADDR_FILTER_END 0xC04 47 #define L2X0_TEST_OPERATION 0xF00 48 #define L2X0_LINE_DATA 0xF10 49 #define L2X0_LINE_TAG 0xF30 50 #define L2X0_DEBUG_CTRL 0xF40 51 #define L310_PREFETCH_CTRL 0xF60 52 #define L310_POWER_CTRL 0xF80 53 #define L310_DYNAMIC_CLK_GATING_EN (1 << 1) 54 #define L310_STNDBY_MODE_EN (1 << 0) 55 56 /* Registers shifts and masks */ 57 #define L2X0_CACHE_ID_PART_MASK (0xf << 6) 58 #define L2X0_CACHE_ID_PART_L210 (1 << 6) 59 #define L2X0_CACHE_ID_PART_L220 (2 << 6) 60 #define L2X0_CACHE_ID_PART_L310 (3 << 6) 61 #define L2X0_CACHE_ID_RTL_MASK 0x3f 62 #define L210_CACHE_ID_RTL_R0P2_02 0x00 63 #define L210_CACHE_ID_RTL_R0P1 0x01 64 #define L210_CACHE_ID_RTL_R0P2_01 0x02 65 #define L210_CACHE_ID_RTL_R0P3 0x03 66 #define L210_CACHE_ID_RTL_R0P4 0x0b 67 #define L210_CACHE_ID_RTL_R0P5 0x0f 68 #define L220_CACHE_ID_RTL_R1P7_01REL0 0x06 69 #define L310_CACHE_ID_RTL_R0P0 0x00 70 #define L310_CACHE_ID_RTL_R1P0 0x02 71 #define L310_CACHE_ID_RTL_R2P0 0x04 72 #define L310_CACHE_ID_RTL_R3P0 0x05 73 #define L310_CACHE_ID_RTL_R3P1 0x06 74 #define L310_CACHE_ID_RTL_R3P1_50REL0 0x07 75 #define L310_CACHE_ID_RTL_R3P2 0x08 76 #define L310_CACHE_ID_RTL_R3P3 0x09 77 78 #define L2X0_EVENT_CNT_CTRL_ENABLE BIT(0) 79 80 #define L2X0_EVENT_CNT_CFG_SRC_SHIFT 2 81 #define L2X0_EVENT_CNT_CFG_SRC_MASK 0xf 82 #define L2X0_EVENT_CNT_CFG_SRC_DISABLED 0 83 #define L2X0_EVENT_CNT_CFG_INT_DISABLED 0 84 #define L2X0_EVENT_CNT_CFG_INT_INCR 1 85 #define L2X0_EVENT_CNT_CFG_INT_OVERFLOW 2 86 87 /* L2C auxiliary control register - bits common to L2C-210/220/310 */ 88 #define L2C_AUX_CTRL_WAY_SIZE_SHIFT 17 89 #define L2C_AUX_CTRL_WAY_SIZE_MASK (7 << 17) 90 #define L2C_AUX_CTRL_WAY_SIZE(n) ((n) << 17) 91 #define L2C_AUX_CTRL_EVTMON_ENABLE BIT(20) 92 #define L2C_AUX_CTRL_PARITY_ENABLE BIT(21) 93 #define L2C_AUX_CTRL_SHARED_OVERRIDE BIT(22) 94 /* L2C-210/220 common bits */ 95 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0 96 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK (7 << 0) 97 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3 98 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (7 << 3) 99 #define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6 100 #define L2X0_AUX_CTRL_TAG_LATENCY_MASK (7 << 6) 101 #define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9 102 #define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (7 << 9) 103 #define L2X0_AUX_CTRL_ASSOC_SHIFT 13 104 #define L2X0_AUX_CTRL_ASSOC_MASK (15 << 13) 105 /* L2C-210 specific bits */ 106 #define L210_AUX_CTRL_WRAP_DISABLE BIT(12) 107 #define L210_AUX_CTRL_WA_OVERRIDE BIT(23) 108 #define L210_AUX_CTRL_EXCLUSIVE_ABORT BIT(24) 109 /* L2C-220 specific bits */ 110 #define L220_AUX_CTRL_EXCLUSIVE_CACHE BIT(12) 111 #define L220_AUX_CTRL_FWA_SHIFT 23 112 #define L220_AUX_CTRL_FWA_MASK (3 << 23) 113 #define L220_AUX_CTRL_NS_LOCKDOWN BIT(26) 114 #define L220_AUX_CTRL_NS_INT_CTRL BIT(27) 115 /* L2C-310 specific bits */ 116 #define L310_AUX_CTRL_FULL_LINE_ZERO BIT(0) /* R2P0+ */ 117 #define L310_AUX_CTRL_HIGHPRIO_SO_DEV BIT(10) /* R2P0+ */ 118 #define L310_AUX_CTRL_STORE_LIMITATION BIT(11) /* R2P0+ */ 119 #define L310_AUX_CTRL_EXCLUSIVE_CACHE BIT(12) 120 #define L310_AUX_CTRL_ASSOCIATIVITY_16 BIT(16) 121 #define L310_AUX_CTRL_CACHE_REPLACE_RR BIT(25) /* R2P0+ */ 122 #define L310_AUX_CTRL_NS_LOCKDOWN BIT(26) 123 #define L310_AUX_CTRL_NS_INT_CTRL BIT(27) 124 #define L310_AUX_CTRL_DATA_PREFETCH BIT(28) 125 #define L310_AUX_CTRL_INSTR_PREFETCH BIT(29) 126 #define L310_AUX_CTRL_EARLY_BRESP BIT(30) /* R2P0+ */ 127 128 #define L310_LATENCY_CTRL_SETUP(n) ((n) << 0) 129 #define L310_LATENCY_CTRL_RD(n) ((n) << 4) 130 #define L310_LATENCY_CTRL_WR(n) ((n) << 8) 131 132 #define L310_ADDR_FILTER_EN 1 133 134 #define L310_PREFETCH_CTRL_OFFSET_MASK 0x1f 135 #define L310_PREFETCH_CTRL_DBL_LINEFILL_INCR BIT(23) 136 #define L310_PREFETCH_CTRL_PREFETCH_DROP BIT(24) 137 #define L310_PREFETCH_CTRL_DBL_LINEFILL_WRAP BIT(27) 138 #define L310_PREFETCH_CTRL_DATA_PREFETCH BIT(28) 139 #define L310_PREFETCH_CTRL_INSTR_PREFETCH BIT(29) 140 #define L310_PREFETCH_CTRL_DBL_LINEFILL BIT(30) 141 142 #define L2X0_CTRL_EN 1 143 144 #define L2X0_WAY_SIZE_SHIFT 3 145 146 #ifndef __ASSEMBLY__ 147 extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask); 148 #if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF) 149 extern int l2x0_of_init(u32 aux_val, u32 aux_mask); 150 #else 151 static inline int l2x0_of_init(u32 aux_val, u32 aux_mask) 152 { 153 return -ENODEV; 154 } 155 #endif 156 157 #ifdef CONFIG_CACHE_L2X0_PMU 158 void l2x0_pmu_register(void __iomem *base, u32 part); 159 void l2x0_pmu_suspend(void); 160 void l2x0_pmu_resume(void); 161 #else 162 static inline void l2x0_pmu_register(void __iomem *base, u32 part) {} 163 static inline void l2x0_pmu_suspend(void) {} 164 static inline void l2x0_pmu_resume(void) {} 165 #endif 166 167 struct l2x0_regs { 168 unsigned long phy_base; 169 unsigned long aux_ctrl; 170 /* 171 * Whether the following registers need to be saved/restored 172 * depends on platform 173 */ 174 unsigned long tag_latency; 175 unsigned long data_latency; 176 unsigned long filter_start; 177 unsigned long filter_end; 178 unsigned long prefetch_ctrl; 179 unsigned long pwr_ctrl; 180 unsigned long ctrl; 181 unsigned long aux2_ctrl; 182 }; 183 184 extern struct l2x0_regs l2x0_saved_regs; 185 186 #endif /* __ASSEMBLY__ */ 187 188 #endif 189