1 // SPDX-License-Identifier: GPL-2.0 2 /* Marvell OcteonTx2 RVU Admin Function driver 3 * 4 * Copyright (C) 2018 Marvell International Ltd. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #include <linux/module.h> 12 #include <linux/pci.h> 13 14 #include "rvu_struct.h" 15 #include "common.h" 16 #include "mbox.h" 17 #include "rvu.h" 18 19 struct reg_range { 20 u64 start; 21 u64 end; 22 }; 23 24 struct hw_reg_map { 25 u8 regblk; 26 u8 num_ranges; 27 u64 mask; 28 #define MAX_REG_RANGES 8 29 struct reg_range range[MAX_REG_RANGES]; 30 }; 31 32 static struct hw_reg_map txsch_reg_map[NIX_TXSCH_LVL_CNT] = { 33 {NIX_TXSCH_LVL_SMQ, 2, 0xFFFF, {{0x0700, 0x0708}, {0x1400, 0x14C8} } }, 34 {NIX_TXSCH_LVL_TL4, 3, 0xFFFF, {{0x0B00, 0x0B08}, {0x0B10, 0x0B18}, 35 {0x1200, 0x12E0} } }, 36 {NIX_TXSCH_LVL_TL3, 3, 0xFFFF, {{0x1000, 0x10E0}, {0x1600, 0x1608}, 37 {0x1610, 0x1618} } }, 38 {NIX_TXSCH_LVL_TL2, 2, 0xFFFF, {{0x0E00, 0x0EE0}, {0x1700, 0x1768} } }, 39 {NIX_TXSCH_LVL_TL1, 1, 0xFFFF, {{0x0C00, 0x0D98} } }, 40 }; 41 42 bool rvu_check_valid_reg(int regmap, int regblk, u64 reg) 43 { 44 int idx; 45 struct hw_reg_map *map; 46 47 /* Only 64bit offsets */ 48 if (reg & 0x07) 49 return false; 50 51 if (regmap == TXSCHQ_HWREGMAP) { 52 if (regblk >= NIX_TXSCH_LVL_CNT) 53 return false; 54 map = &txsch_reg_map[regblk]; 55 } else { 56 return false; 57 } 58 59 /* Should never happen */ 60 if (map->regblk != regblk) 61 return false; 62 63 reg &= map->mask; 64 65 for (idx = 0; idx < map->num_ranges; idx++) { 66 if (reg >= map->range[idx].start && 67 reg < map->range[idx].end) 68 return true; 69 } 70 return false; 71 } 72