drivers/memory/tegra/mc.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2014 NVIDIA CORPORATION.  All rights reserved.
   4  */
   5
   6 #ifndef MEMORY_TEGRA_MC_H
   7 #define MEMORY_TEGRA_MC_H
   8
   9 #include <linux/bits.h>
  10 #include <linux/io.h>
  11 #include <linux/types.h>
  12
  13 #include <soc/tegra/mc.h>
  14
  15 #define MC_INTSTATUS                                    0x00
  16 #define MC_INTMASK                                      0x04
  17 #define MC_ERR_STATUS                                   0x08
  18 #define MC_ERR_ADR                                      0x0c
  19 #define MC_GART_ERROR_REQ                               0x30
  20 #define MC_EMEM_ADR_CFG                                 0x54
  21 #define MC_DECERR_EMEM_OTHERS_STATUS                    0x58
  22 #define MC_SECURITY_VIOLATION_STATUS                    0x74
  23 #define MC_EMEM_ARB_CFG                                 0x90
  24 #define MC_EMEM_ARB_OUTSTANDING_REQ                     0x94
  25 #define MC_EMEM_ARB_TIMING_RCD                          0x98
  26 #define MC_EMEM_ARB_TIMING_RP                           0x9c
  27 #define MC_EMEM_ARB_TIMING_RC                           0xa0
  28 #define MC_EMEM_ARB_TIMING_RAS                          0xa4
  29 #define MC_EMEM_ARB_TIMING_FAW                          0xa8
  30 #define MC_EMEM_ARB_TIMING_RRD                          0xac
  31 #define MC_EMEM_ARB_TIMING_RAP2PRE                      0xb0
  32 #define MC_EMEM_ARB_TIMING_WAP2PRE                      0xb4
  33 #define MC_EMEM_ARB_TIMING_R2R                          0xb8
  34 #define MC_EMEM_ARB_TIMING_W2W                          0xbc
  35 #define MC_EMEM_ARB_TIMING_R2W                          0xc0
  36 #define MC_EMEM_ARB_TIMING_W2R                          0xc4
  37 #define MC_EMEM_ARB_MISC2                               0xc8
  38 #define MC_EMEM_ARB_DA_TURNS                            0xd0
  39 #define MC_EMEM_ARB_DA_COVERS                           0xd4
  40 #define MC_EMEM_ARB_MISC0                               0xd8
  41 #define MC_EMEM_ARB_MISC1                               0xdc
  42 #define MC_EMEM_ARB_RING1_THROTTLE                      0xe0
  43 #define MC_EMEM_ARB_OVERRIDE                            0xe8
  44 #define MC_TIMING_CONTROL_DBG                           0xf8
  45 #define MC_TIMING_CONTROL                               0xfc
  46 #define MC_ERR_VPR_STATUS                               0x654
  47 #define MC_ERR_VPR_ADR                                  0x658
  48 #define MC_ERR_SEC_STATUS                               0x67c
  49 #define MC_ERR_SEC_ADR                                  0x680
  50 #define MC_ERR_MTS_STATUS                               0x9b0
  51 #define MC_ERR_MTS_ADR                                  0x9b4
  52 #define MC_ERR_ROUTE_SANITY_STATUS                      0x9c0
  53 #define MC_ERR_ROUTE_SANITY_ADR                         0x9c4
  54 #define MC_ERR_GENERALIZED_CARVEOUT_STATUS              0xc00
  55 #define MC_ERR_GENERALIZED_CARVEOUT_ADR                 0xc04
  56 #define MC_GLOBAL_INTSTATUS                             0xf24
  57 #define MC_ERR_ADR_HI                                   0x11fc
  58
  59 #define MC_INT_DECERR_ROUTE_SANITY                      BIT(20)
  60 #define MC_INT_DECERR_GENERALIZED_CARVEOUT              BIT(17)
  61 #define MC_INT_DECERR_MTS                               BIT(16)
  62 #define MC_INT_SECERR_SEC                               BIT(13)
  63 #define MC_INT_DECERR_VPR                               BIT(12)
  64 #define MC_INT_INVALID_APB_ASID_UPDATE                  BIT(11)
  65 #define MC_INT_INVALID_SMMU_PAGE                        BIT(10)
  66 #define MC_INT_ARBITRATION_EMEM                         BIT(9)
  67 #define MC_INT_SECURITY_VIOLATION                       BIT(8)
  68 #define MC_INT_INVALID_GART_PAGE                        BIT(7)
  69 #define MC_INT_DECERR_EMEM                              BIT(6)
  70
  71 #define MC_ERR_STATUS_TYPE_SHIFT                        28
  72 #define MC_ERR_STATUS_TYPE_INVALID_SMMU_PAGE            (0x6 << 28)
  73 #define MC_ERR_STATUS_TYPE_MASK                         (0x7 << 28)
  74 #define MC_ERR_STATUS_READABLE                          BIT(27)
  75 #define MC_ERR_STATUS_WRITABLE                          BIT(26)
  76 #define MC_ERR_STATUS_NONSECURE                         BIT(25)
  77 #define MC_ERR_STATUS_ADR_HI_SHIFT                      20
  78 #define MC_ERR_STATUS_ADR_HI_MASK                       0x3
  79 #define MC_ERR_STATUS_SECURITY                          BIT(17)
  80 #define MC_ERR_STATUS_RW                                BIT(16)
  81
  82 #define MC_EMEM_ADR_CFG_EMEM_NUMDEV                     BIT(0)
  83
  84 #define MC_EMEM_ARB_CFG_CYCLES_PER_UPDATE(x)            ((x) & 0x1ff)
  85 #define MC_EMEM_ARB_CFG_CYCLES_PER_UPDATE_MASK          0x1ff
  86
  87 #define MC_EMEM_ARB_OUTSTANDING_REQ_MAX_MASK            0x1ff
  88 #define MC_EMEM_ARB_OUTSTANDING_REQ_HOLDOFF_OVERRIDE    BIT(30)
  89 #define MC_EMEM_ARB_OUTSTANDING_REQ_LIMIT_ENABLE        BIT(31)
  90
  91 #define MC_EMEM_ARB_OVERRIDE_EACK_MASK                  0x3
  92
  93 #define MC_TIMING_UPDATE                                BIT(0)
  94
  95 #define MC_BROADCAST_CHANNEL                            ~0
  96
  97 static inline u32 tegra_mc_scale_percents(u64 val, unsigned int percents)
  98 {
  99         val = val * percents;
 100         do_div(val, 100);
 101
 102         return min_t(u64, val, U32_MAX);
 103 }
 104
 105 static inline struct tegra_mc *
 106 icc_provider_to_tegra_mc(struct icc_provider *provider)
 107 {
 108         return container_of(provider, struct tegra_mc, provider);
 109 }
 110
 111 static inline u32 mc_ch_readl(const struct tegra_mc *mc, int ch,
 112                               unsigned long offset)
 113 {
 114         if (!mc->bcast_ch_regs)
 115                 return 0;
 116
 117         if (ch == MC_BROADCAST_CHANNEL)
 118                 return readl_relaxed(mc->bcast_ch_regs + offset);
 119
 120         return readl_relaxed(mc->ch_regs[ch] + offset);
 121 }
 122
 123 static inline void mc_ch_writel(const struct tegra_mc *mc, int ch,
 124                                 u32 value, unsigned long offset)
 125 {
 126         if (!mc->bcast_ch_regs)
 127                 return;
 128
 129         if (ch == MC_BROADCAST_CHANNEL)
 130                 writel_relaxed(value, mc->bcast_ch_regs + offset);
 131         else
 132                 writel_relaxed(value, mc->ch_regs[ch] + offset);
 133 }
 134
 135 static inline u32 mc_readl(const struct tegra_mc *mc, unsigned long offset)
 136 {
 137         return readl_relaxed(mc->regs + offset);
 138 }
 139
 140 static inline void mc_writel(const struct tegra_mc *mc, u32 value,
 141                              unsigned long offset)
 142 {
 143         writel_relaxed(value, mc->regs + offset);
 144 }
 145
 146 extern const struct tegra_mc_reset_ops tegra_mc_reset_ops_common;
 147
 148 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
 149 extern const struct tegra_mc_soc tegra20_mc_soc;
 150 #endif
 151
 152 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
 153 extern const struct tegra_mc_soc tegra30_mc_soc;
 154 #endif
 155
 156 #ifdef CONFIG_ARCH_TEGRA_114_SOC
 157 extern const struct tegra_mc_soc tegra114_mc_soc;
 158 #endif
 159
 160 #ifdef CONFIG_ARCH_TEGRA_124_SOC
 161 extern const struct tegra_mc_soc tegra124_mc_soc;
 162 #endif
 163
 164 #ifdef CONFIG_ARCH_TEGRA_132_SOC
 165 extern const struct tegra_mc_soc tegra132_mc_soc;
 166 #endif
 167
 168 #ifdef CONFIG_ARCH_TEGRA_210_SOC
 169 extern const struct tegra_mc_soc tegra210_mc_soc;
 170 #endif
 171
 172 #ifdef CONFIG_ARCH_TEGRA_186_SOC
 173 extern const struct tegra_mc_soc tegra186_mc_soc;
 174 #endif
 175
 176 #ifdef CONFIG_ARCH_TEGRA_194_SOC
 177 extern const struct tegra_mc_soc tegra194_mc_soc;
 178 #endif
 179
 180 #ifdef CONFIG_ARCH_TEGRA_234_SOC
 181 extern const struct tegra_mc_soc tegra234_mc_soc;
 182 #endif
 183
 184 #if defined(CONFIG_ARCH_TEGRA_3x_SOC) || \
 185     defined(CONFIG_ARCH_TEGRA_114_SOC) || \
 186     defined(CONFIG_ARCH_TEGRA_124_SOC) || \
 187     defined(CONFIG_ARCH_TEGRA_132_SOC) || \
 188     defined(CONFIG_ARCH_TEGRA_210_SOC)
 189 int tegra30_mc_probe(struct tegra_mc *mc);
 190 extern const struct tegra_mc_ops tegra30_mc_ops;
 191 #endif
 192
 193 #if defined(CONFIG_ARCH_TEGRA_186_SOC) || \
 194     defined(CONFIG_ARCH_TEGRA_194_SOC) || \
 195     defined(CONFIG_ARCH_TEGRA_234_SOC)
 196 extern const struct tegra_mc_ops tegra186_mc_ops;
 197 #endif
 198
 199 irqreturn_t tegra30_mc_handle_irq(int irq, void *data);
 200 extern const char * const tegra_mc_status_names[32];
 201 extern const char * const tegra_mc_error_names[8];
 202
 203 /*
 204  * These IDs are for internal use of Tegra ICC drivers. The ID numbers are
 205  * chosen such that they don't conflict with the device-tree ICC node IDs.
 206  */
 207 #define TEGRA_ICC_MC            1000
 208 #define TEGRA_ICC_EMC           1001
 209 #define TEGRA_ICC_EMEM          1002
 210
 211 #endif /* MEMORY_TEGRA_MC_H */