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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | // SPDX-License-Identifier: GPL-2.0-only /* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */ #include <linux/seq_file.h> #include "mtk_wed.h" #include "mtk_wed_regs.h" struct reg_dump { const char *name; u16 offset; u8 type; u8 base; }; enum { DUMP_TYPE_STRING, DUMP_TYPE_WED, DUMP_TYPE_WDMA, DUMP_TYPE_WPDMA_TX, DUMP_TYPE_WPDMA_TXFREE, }; #define DUMP_STR(_str) { _str, 0, DUMP_TYPE_STRING } #define DUMP_REG(_reg, ...) { #_reg, MTK_##_reg, __VA_ARGS__ } #define DUMP_RING(_prefix, _base, ...) \ { _prefix " BASE", _base, __VA_ARGS__ }, \ { _prefix " CNT", _base + 0x4, __VA_ARGS__ }, \ { _prefix " CIDX", _base + 0x8, __VA_ARGS__ }, \ { _prefix " DIDX", _base + 0xc, __VA_ARGS__ } #define DUMP_WED(_reg) DUMP_REG(_reg, DUMP_TYPE_WED) #define DUMP_WED_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WED) #define DUMP_WDMA(_reg) DUMP_REG(_reg, DUMP_TYPE_WDMA) #define DUMP_WDMA_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WDMA) #define DUMP_WPDMA_TX_RING(_n) DUMP_RING("WPDMA_TX" #_n, 0, DUMP_TYPE_WPDMA_TX, _n) #define DUMP_WPDMA_TXFREE_RING DUMP_RING("WPDMA_RX1", 0, DUMP_TYPE_WPDMA_TXFREE) static void print_reg_val(struct seq_file *s, const char *name, u32 val) { seq_printf(s, "%-32s %08x\n", name, val); } static void dump_wed_regs(struct seq_file *s, struct mtk_wed_device *dev, const struct reg_dump *regs, int n_regs) { const struct reg_dump *cur; u32 val; for (cur = regs; cur < ®s[n_regs]; cur++) { switch (cur->type) { case DUMP_TYPE_STRING: seq_printf(s, "%s======== %s:\n", cur > regs ? "\n" : "", cur->name); continue; case DUMP_TYPE_WED: val = wed_r32(dev, cur->offset); break; case DUMP_TYPE_WDMA: val = wdma_r32(dev, cur->offset); break; case DUMP_TYPE_WPDMA_TX: val = wpdma_tx_r32(dev, cur->base, cur->offset); break; case DUMP_TYPE_WPDMA_TXFREE: val = wpdma_txfree_r32(dev, cur->offset); break; } print_reg_val(s, cur->name, val); } } static int wed_txinfo_show(struct seq_file *s, void *data) { static const struct reg_dump regs[] = { DUMP_STR("WED TX"), DUMP_WED(WED_TX_MIB(0)), DUMP_WED_RING(WED_RING_TX(0)), DUMP_WED(WED_TX_MIB(1)), DUMP_WED_RING(WED_RING_TX(1)), DUMP_STR("WPDMA TX"), DUMP_WED(WED_WPDMA_TX_MIB(0)), DUMP_WED_RING(WED_WPDMA_RING_TX(0)), DUMP_WED(WED_WPDMA_TX_COHERENT_MIB(0)), DUMP_WED(WED_WPDMA_TX_MIB(1)), DUMP_WED_RING(WED_WPDMA_RING_TX(1)), DUMP_WED(WED_WPDMA_TX_COHERENT_MIB(1)), DUMP_STR("WPDMA TX"), DUMP_WPDMA_TX_RING(0), DUMP_WPDMA_TX_RING(1), DUMP_STR("WED WDMA RX"), DUMP_WED(WED_WDMA_RX_MIB(0)), DUMP_WED_RING(WED_WDMA_RING_RX(0)), DUMP_WED(WED_WDMA_RX_THRES(0)), DUMP_WED(WED_WDMA_RX_RECYCLE_MIB(0)), DUMP_WED(WED_WDMA_RX_PROCESSED_MIB(0)), DUMP_WED(WED_WDMA_RX_MIB(1)), DUMP_WED_RING(WED_WDMA_RING_RX(1)), DUMP_WED(WED_WDMA_RX_THRES(1)), DUMP_WED(WED_WDMA_RX_RECYCLE_MIB(1)), DUMP_WED(WED_WDMA_RX_PROCESSED_MIB(1)), DUMP_STR("WDMA RX"), DUMP_WDMA(WDMA_GLO_CFG), DUMP_WDMA_RING(WDMA_RING_RX(0)), DUMP_WDMA_RING(WDMA_RING_RX(1)), DUMP_STR("TX FREE"), DUMP_WED(WED_RX_MIB(0)), }; struct mtk_wed_hw *hw = s->private; struct mtk_wed_device *dev = hw->wed_dev; if (!dev) return 0; dump_wed_regs(s, dev, regs, ARRAY_SIZE(regs)); return 0; } DEFINE_SHOW_ATTRIBUTE(wed_txinfo); static int mtk_wed_reg_set(void *data, u64 val) { struct mtk_wed_hw *hw = data; regmap_write(hw->regs, hw->debugfs_reg, val); return 0; } static int mtk_wed_reg_get(void *data, u64 *val) { struct mtk_wed_hw *hw = data; unsigned int regval; int ret; ret = regmap_read(hw->regs, hw->debugfs_reg, ®val); if (ret) return ret; *val = regval; return 0; } DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mtk_wed_reg_get, mtk_wed_reg_set, "0x%08llx\n"); void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw) { struct dentry *dir; snprintf(hw->dirname, sizeof(hw->dirname), "wed%d", hw->index); dir = debugfs_create_dir(hw->dirname, NULL); if (!dir) return; hw->debugfs_dir = dir; debugfs_create_u32("regidx", 0600, dir, &hw->debugfs_reg); debugfs_create_file_unsafe("regval", 0600, dir, hw, &fops_regval); debugfs_create_file_unsafe("txinfo", 0400, dir, hw, &wed_txinfo_fops); } |