diff options
Diffstat (limited to 'chip/mt_scp/mt8183/memmap.c')
| -rw-r--r-- | chip/mt_scp/mt8183/memmap.c | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/chip/mt_scp/mt8183/memmap.c b/chip/mt_scp/mt8183/memmap.c deleted file mode 100644 index 6d8f2b0c87..0000000000 --- a/chip/mt_scp/mt8183/memmap.c +++ /dev/null @@ -1,322 +0,0 @@ -/* Copyright 2018 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - * - * SCP memory map - */ - -#include "common.h" -#include "compile_time_macros.h" -#include "console.h" -#include "hooks.h" -#include "memmap.h" -#include "registers.h" -#include "util.h" - -/* - * Map SCP address (bits 31~28) to AP address - * - * SCP addr : AP addr - * 0x20000000 0x40000000 - * 0x30000000 0x50000000 - * 0x60000000 0x60000000 - * 0x70000000 0x70000000 - * 0x80000000 0x80000000 - * 0x90000000 0x00000000 - * 0xA0000000 0x10000000 - * 0xB0000000 0x20000000 - * 0xC0000000 0x30000000 - * 0xD0000000 0x10000000 - * 0xE0000000 0xA0000000 - * 0xF0000000 0x90000000 - */ - -#define MAP_INVALID 0xff - -static const uint8_t addr_map[16] = { - MAP_INVALID, /* 0x0: SRAM */ - MAP_INVALID, /* 0x1: Cached access (see below) */ - 0x4, 0x5, /* 0x2-0x3 */ - MAP_INVALID, MAP_INVALID, /* 0x4-0x5 (unmapped: registers) */ - 0x6, 0x7, 0x8, /* 0x6-0x8 */ - 0x0, 0x1, 0x2, 0x3, /* 0x9-0xc */ - 0x1, 0xa, 0x9 /* 0xd-0xf */ -}; - -/* - * AP addr : SCP cache addr - * 0x50000000 0x10000000 - */ -#define CACHE_TRANS_AP_ADDR 0x50000000 -#define CACHE_TRANS_SCP_CACHE_ADDR 0x10000000 -/* FIXME: This should be configurable */ -#define CACHE_TRANS_AP_SIZE 0x00400000 - -#ifdef CONFIG_DRAM_BASE -BUILD_ASSERT(CONFIG_DRAM_BASE_LOAD == CACHE_TRANS_AP_ADDR); -BUILD_ASSERT(CONFIG_DRAM_BASE == CACHE_TRANS_SCP_CACHE_ADDR); -#endif - -static void cpu_invalidate_icache(void) -{ - SCP_CACHE_OP(CACHE_ICACHE) &= ~SCP_CACHE_OP_OP_MASK; - SCP_CACHE_OP(CACHE_ICACHE) |= - OP_INVALIDATE_ALL_LINES | SCP_CACHE_OP_EN; - asm volatile("dsb; isb"); -} - -void cpu_invalidate_dcache(void) -{ - SCP_CACHE_OP(CACHE_DCACHE) &= ~SCP_CACHE_OP_OP_MASK; - SCP_CACHE_OP(CACHE_DCACHE) |= - OP_INVALIDATE_ALL_LINES | SCP_CACHE_OP_EN; - /* Read is necessary to confirm the invalidation finish. */ - REG32(CACHE_TRANS_SCP_CACHE_ADDR); - asm volatile("dsb;"); -} - -void cpu_invalidate_dcache_range(uintptr_t base, unsigned int length) -{ - size_t pos; - uintptr_t addr; - - for (pos = 0; pos < length; pos += SCP_CACHE_LINE_SIZE) { - addr = base + pos; - SCP_CACHE_OP(CACHE_DCACHE) = addr & SCP_CACHE_OP_TADDR_MASK; - SCP_CACHE_OP(CACHE_DCACHE) |= - OP_INVALIDATE_ONE_LINE_BY_ADDRESS | SCP_CACHE_OP_EN; - /* Read necessary to confirm the invalidation finish. */ - REG32(addr); - } - asm volatile("dsb;"); -} - -void cpu_clean_invalidate_dcache(void) -{ - SCP_CACHE_OP(CACHE_DCACHE) &= ~SCP_CACHE_OP_OP_MASK; - SCP_CACHE_OP(CACHE_DCACHE) |= - OP_CACHE_FLUSH_ALL_LINES | SCP_CACHE_OP_EN; - SCP_CACHE_OP(CACHE_DCACHE) &= ~SCP_CACHE_OP_OP_MASK; - SCP_CACHE_OP(CACHE_DCACHE) |= - OP_INVALIDATE_ALL_LINES | SCP_CACHE_OP_EN; - /* Read necessary to confirm the invalidation finish. */ - REG32(CACHE_TRANS_SCP_CACHE_ADDR); - asm volatile("dsb;"); -} - -void cpu_clean_invalidate_dcache_range(uintptr_t base, unsigned int length) -{ - size_t pos; - uintptr_t addr; - - for (pos = 0; pos < length; pos += SCP_CACHE_LINE_SIZE) { - addr = base + pos; - SCP_CACHE_OP(CACHE_DCACHE) = addr & SCP_CACHE_OP_TADDR_MASK; - SCP_CACHE_OP(CACHE_DCACHE) |= - OP_CACHE_FLUSH_ONE_LINE_BY_ADDRESS | SCP_CACHE_OP_EN; - SCP_CACHE_OP(CACHE_DCACHE) = addr & SCP_CACHE_OP_TADDR_MASK; - SCP_CACHE_OP(CACHE_DCACHE) |= - OP_INVALIDATE_ONE_LINE_BY_ADDRESS | SCP_CACHE_OP_EN; - /* Read necessary to confirm the invalidation finish. */ - REG32(addr); - } - asm volatile("dsb;"); -} - -static void scp_cache_init(void) -{ - int c; - const int region = 0; - - /* First make sure all caches are disabled, and reset stats. */ - for (c = 0; c < CACHE_COUNT; c++) { - /* - * Changing cache-size config may change the SRAM logical - * address in the mean time. This may break the loaded - * memory layout, and thus break the system. Cache-size - * should only be be configured in kernel driver before - * laoding the firmware. b/137920815#comment18 - */ - SCP_CACHE_CON(c) &= (SCP_CACHE_CON_CACHESIZE_MASK | - SCP_CACHE_CON_WAYEN); - SCP_CACHE_REGION_EN(c) = 0; - SCP_CACHE_ENTRY(c, region) = 0; - SCP_CACHE_END_ENTRY(c, region) = 0; - - /* Reset statistics. */ - SCP_CACHE_HCNT0U(c) = 0; - SCP_CACHE_HCNT0L(c) = 0; - SCP_CACHE_CCNT0U(c) = 0; - SCP_CACHE_CCNT0L(c) = 0; - } - - /* No "normal" remap. */ - SCP_L1_REMAP_CFG0 = 0; - SCP_L1_REMAP_CFG1 = 0; - SCP_L1_REMAP_CFG2 = 0; - SCP_L1_REMAP_CFG3 = 0; - /* - * Setup OTHER1: Remap register for addr msb 31 to 28 equal to 0x1 and - * not overlap with L1C_EXT_ADDR0 to L1C_EXT_ADDR7. - */ - SCP_L1_REMAP_OTHER = - (CACHE_TRANS_AP_ADDR >> SCP_L1_EXT_ADDR_OTHER_SHIFT) << 8; - - /* Disable sleep protect */ - SCP_SLP_PROTECT_CFG = SCP_SLP_PROTECT_CFG & - ~(P_CACHE_SLP_PROT_EN | D_CACHE_SLP_PROT_EN); - - /* Enable region 0 for both I-cache and D-cache. */ - for (c = 0; c < CACHE_COUNT; c++) { - SCP_CACHE_ENTRY(c, region) = CACHE_TRANS_SCP_CACHE_ADDR; - SCP_CACHE_END_ENTRY(c, region) = - CACHE_TRANS_SCP_CACHE_ADDR + CACHE_TRANS_AP_SIZE; - SCP_CACHE_ENTRY(c, region) |= SCP_CACHE_ENTRY_C; - - SCP_CACHE_REGION_EN(c) |= 1 << region; - - /* - * Enable cache. Note that cache size setting should have been - * done in kernel driver. b/137920815#comment18 - */ - SCP_CACHE_CON(c) |= SCP_CACHE_CON_MCEN | SCP_CACHE_CON_CNTEN0; - } - - cpu_invalidate_icache(); - cpu_invalidate_dcache(); -} - -static int command_cacheinfo(int argc, char **argv) -{ - const char cache_name[] = {'I', 'D'}; - int c; - - for (c = 0; c < 2; c++) { - uint64_t hit = ((uint64_t)SCP_CACHE_HCNT0U(c) << 32) | - SCP_CACHE_HCNT0L(c); - uint64_t access = ((uint64_t)SCP_CACHE_CCNT0U(c) << 32) | - SCP_CACHE_CCNT0L(c); - - ccprintf("%ccache hit count: %llu\n", cache_name[c], hit); - ccprintf("%ccache access count: %llu\n", cache_name[c], access); - } - - return EC_SUCCESS; -} -DECLARE_SAFE_CONSOLE_COMMAND(cacheinfo, command_cacheinfo, - NULL, - "Dump cache info"); - -void scp_memmap_init(void) -{ - /* - * Default config, LARGE DRAM not active: - * REG32(0xA0001F00) & 0x2000 != 0 - */ - - /* - * SCP_REMAP_CFG1 - * EXT_ADDR3[29:24] remap register for addr msb 31~28 equal to 0x7 - * EXT_ADDR2[21:16] remap register for addr msb 31~28 equal to 0x6 - * EXT_ADDR1[13:8] remap register for addr msb 31~28 equal to 0x3 - * EXT_ADDR0[5:0] remap register for addr msb 31~28 equal to 0x2 - */ - SCP_REMAP_CFG1 = - (uint32_t)addr_map[0x7] << 24 | - (uint32_t)addr_map[0x6] << 16 | - (uint32_t)addr_map[0x3] << 8 | - (uint32_t)addr_map[0x2]; - - /* - * SCP_REMAP_CFG2 - * EXT_ADDR7[29:24] remap register for addr msb 31~28 equal to 0xb - * EXT_ADDR6[21:16] remap register for addr msb 31~28 equal to 0xa - * EXT_ADDR5[13:8] remap register for addr msb 31~28 equal to 0x9 - * EXT_ADDR4[5:0] remap register for addr msb 31~28 equal to 0x8 - */ - SCP_REMAP_CFG2 = - (uint32_t)addr_map[0xb] << 24 | - (uint32_t)addr_map[0xa] << 16 | - (uint32_t)addr_map[0x9] << 8 | - (uint32_t)addr_map[0x8]; - /* - * SCP_REMAP_CFG3 - * AUD_ADDR[31:28] remap register for addr msb 31~28 equal to 0xd - * EXT_ADDR10[21:16]remap register for addr msb 31~28 equal to 0xf - * EXT_ADDR9[13:8] remap register for addr msb 31~28 equal to 0xe - * EXT_ADDR8[5:0] remap register for addr msb 31~28 equal to 0xc - */ - SCP_REMAP_CFG3 = - (uint32_t)addr_map[0xd] << 28 | - (uint32_t)addr_map[0xf] << 16 | - (uint32_t)addr_map[0xe] << 8 | - (uint32_t)addr_map[0xc]; - - /* Initialize cache remapping. */ - scp_cache_init(); -} - -int memmap_ap_to_scp(uintptr_t ap_addr, uintptr_t *scp_addr) -{ - int i; - uint8_t msb = ap_addr >> SCP_REMAP_ADDR_SHIFT; - - for (i = 0; i < ARRAY_SIZE(addr_map); i++) { - if (addr_map[i] != msb) - continue; - - *scp_addr = (ap_addr & SCP_REMAP_ADDR_LSB_MASK) | - (i << SCP_REMAP_ADDR_SHIFT); - return EC_SUCCESS; - } - - return EC_ERROR_INVAL; -} - -int memmap_scp_to_ap(uintptr_t scp_addr, uintptr_t *ap_addr) -{ - int i = scp_addr >> SCP_REMAP_ADDR_SHIFT; - - if (addr_map[i] == MAP_INVALID) - return EC_ERROR_INVAL; - - *ap_addr = (scp_addr & SCP_REMAP_ADDR_LSB_MASK) | - (addr_map[i] << SCP_REMAP_ADDR_SHIFT); - return EC_SUCCESS; -} - -#ifdef CONFIG_DRAM_BASE -BUILD_ASSERT(CONFIG_DRAM_BASE_LOAD == CACHE_TRANS_AP_ADDR); -BUILD_ASSERT(CONFIG_DRAM_BASE == CACHE_TRANS_SCP_CACHE_ADDR); -#endif - -int memmap_ap_to_scp_cache(uintptr_t ap_addr, uintptr_t *scp_addr) -{ - uintptr_t lsb; - - if ((ap_addr & SCP_L1_EXT_ADDR_OTHER_MSB_MASK) != CACHE_TRANS_AP_ADDR) - return EC_ERROR_INVAL; - - lsb = ap_addr & SCP_L1_EXT_ADDR_OTHER_LSB_MASK; - if (lsb > CACHE_TRANS_AP_SIZE) - return EC_ERROR_INVAL; - - *scp_addr = CACHE_TRANS_SCP_CACHE_ADDR | lsb; - return EC_SUCCESS; -} - -int memmap_scp_cache_to_ap(uintptr_t scp_addr, uintptr_t *ap_addr) -{ - uintptr_t lsb; - - if ((scp_addr & SCP_L1_EXT_ADDR_OTHER_MSB_MASK) != - CACHE_TRANS_SCP_CACHE_ADDR) - return EC_ERROR_INVAL; - - lsb = scp_addr & SCP_L1_EXT_ADDR_OTHER_LSB_MASK; - if (lsb >= CACHE_TRANS_AP_SIZE) - return EC_ERROR_INVAL; - - *ap_addr = CACHE_TRANS_AP_ADDR | lsb; - return EC_SUCCESS; -} |