/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2019 MediaTek Inc. */ #include #include #include #include "m4u_priv.h" #include "m4u_platform.h" #include "m4u_hw.h" #include #include #include #ifdef CONFIG_MTK_SMI_EXT #include "smi_public.h" #endif static struct m4u_domain gM4uDomain; static unsigned long gM4UBaseAddr[TOTAL_M4U_NUM]; static unsigned long gLarbBaseAddr[SMI_LARB_NR]; static unsigned long gPericfgBaseAddr; static unsigned int gM4UTagCount[] = {64}; /* static M4U_RANGE_DES_T gM4u0_seq[M4U0_SEQ_NR] = {{0}}; */ /* static M4U_RANGE_DES_T gM4u1_seq[M4U1_SEQ_NR] = {{0}}; */ static M4U_RANGE_DES_T *gM4USeq[] = {NULL, NULL}; /*static M4U_MAU_STATUS_T gM4u0_mau[M4U0_MAU_NR] = { {0} };*/ /*static int gMAU_candidate_id = M4U0_MAU_NR - 1;*/ static DEFINE_MUTEX(gM4u_seq_mutex); static M4U_PROG_DIST_T gM4U0_prog_pfh[M4U0_PROG_PFH_NR] = {{0} }; /* static M4U_PROG_DIST_T gM4u1_prog_pfh[M4U0_PROG_PFH_NR] = {{0}}; */ static M4U_PROG_DIST_T *gM4UProgPfh[] = {gM4U0_prog_pfh, NULL}; static DEFINE_MUTEX(gM4u_prog_pfh_mutex); #define TF_PROTECT_BUFFER_SIZE 128L int gM4U_L2_enable = 1; int gM4U_4G_DRAM_Mode; static spinlock_t gM4u_reg_lock; int gM4u_port_num = M4U_PORT_UNKNOWN; static DEFINE_MUTEX(m4u_larb0_mutex); int m4u_invalid_tlb(int m4u_id, int L2_en, int isInvAll, unsigned int mva_start, unsigned int mva_end) { unsigned int reg = 0; unsigned long m4u_base = gM4UBaseAddr[m4u_id]; if (mva_start >= mva_end) isInvAll = 1; if (!isInvAll) { mva_start = round_down(mva_start, SZ_4K); mva_end = round_up(mva_end, SZ_4K); } if (L2_en) reg = F_MMU_INV_EN_L2; reg |= F_MMU_INV_EN_L1; spin_lock(&gM4u_reg_lock); M4U_WriteReg32(m4u_base, REG_INVLID_SEL, reg); if (isInvAll) M4U_WriteReg32(m4u_base, REG_MMU_INVLD, F_MMU_INV_ALL); else { /*unsigned int type_start = m4u_get_pt_type(gPgd_nonsec, mva_start);*/ /*unsigned int type_end = m4u_get_pt_type(gPgd_nonsec, mva_end);*/ /*unsigned int type = max(type_start, type_end);*/ /*unsigned int alignment;*/ /*if (type > MMU_PT_TYPE_SUPERSECTION)*/ /*type = MMU_PT_TYPE_SUPERSECTION;*/ /*alignment = m4u_get_pt_type_size(type) - 1;*/ /*M4U_WriteReg32(m4u_base, REG_MMU_INVLD_SA, mva_start & (~alignment));*/ /*M4U_WriteReg32(m4u_base, REG_MMU_INVLD_EA, mva_end | alignment);*/ /*M4U_WriteReg32(m4u_base, REG_MMU_INVLD, F_MMU_INV_RANGE);*/ M4U_WriteReg32(m4u_base, REG_MMU_INVLD_SA, mva_start); M4U_WriteReg32(m4u_base, REG_MMU_INVLD_EA, mva_end); M4U_WriteReg32(m4u_base, REG_MMU_INVLD, F_MMU_INV_RANGE); } if (!isInvAll) { while (!M4U_ReadReg32(m4u_base, REG_MMU_CPE_DONE)) ; M4U_WriteReg32(m4u_base, REG_MMU_CPE_DONE, 0); } spin_unlock(&gM4u_reg_lock); return 0; } static void m4u_invalid_tlb_all(int m4u_id) { m4u_invalid_tlb(m4u_id, gM4U_L2_enable, 1, 0, 0); } void m4u_invalid_tlb_by_range(struct m4u_domain *m4u_domain, unsigned int mva_start, unsigned int mva_end) { int i; /* to-do: should get m4u connected to domain here */ for (i = 0; i < TOTAL_M4U_NUM; i++) m4u_invalid_tlb(i, gM4U_L2_enable, 0, mva_start, mva_end); /* m4u_invalid_tlb_all(0); */ /* m4u_invalid_tlb_all(1); */ } static int __m4u_dump_rs_info(unsigned int va[], unsigned int pa[], unsigned int st[], unsigned int pte[]) { int i; M4ULOG_MID("m4u dump RS information =====>\n"); M4ULOG_MID( "id mva valid port-id pa pte larb w/r other-status\n"); for (i = 0; i < MMU_TOTAL_RS_NR; i++) { M4ULOG_MID( "%d: 0x%8x %5d 0x%3x 0x%8x 0x%8x %d %d 0x%3x\n", i, F_MMU_RSx_VA_GET(va[i]), F_MMU_RSx_VA_VALID(va[i]), F_MMU_RSx_VA_PID(va[i]), pa[i], pte[i], F_MMU_RSx_ST_LID(st[i]), F_MMU_RSx_ST_WRT(st[i]), F_MMU_RSx_ST_OTHER(st[i])); } M4ULOG_MID("m4u dump RS information done =====>\n"); return 0; } int m4u_dump_rs_info(int m4u_index, int m4u_slave_id) { unsigned long m4u_base = gM4UBaseAddr[m4u_index]; int i; unsigned int va[MMU_TOTAL_RS_NR], pa[MMU_TOTAL_RS_NR], st[MMU_TOTAL_RS_NR], pte[MMU_TOTAL_RS_NR]; for (i = 0; i < MMU_TOTAL_RS_NR; i++) { va[i] = COM_ReadReg32( (m4u_base + REG_MMU_RSx_VA(m4u_slave_id, i))); pa[i] = COM_ReadReg32( (m4u_base + REG_MMU_RSx_PA(m4u_slave_id, i))); st[i] = COM_ReadReg32( (m4u_base + REG_MMU_RSx_ST(m4u_slave_id, i))); pte[i] = COM_ReadReg32( (m4u_base + REG_MMU_RSx_2ND_BASE(m4u_slave_id, i))); } M4ULOG_MID("m4u dump RS information index: %d=====>\n", m4u_slave_id); __m4u_dump_rs_info(va, pa, st, pte); M4ULOG_MID("m4u dump RS information done =====>\n"); return 0; } static inline void m4u_clear_intr(unsigned int m4u_id) { m4uHw_set_field_by_mask(gM4UBaseAddr[m4u_id], REG_MMU_INT_L2_CONTROL, F_INT_L2_CLR_BIT, F_INT_L2_CLR_BIT); } static inline void m4u_enable_intr(unsigned int m4u_id) { M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_INT_L2_CONTROL, 0x6f); M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_INT_MAIN_CONTROL, 0xffffffff); } static inline void m4u_disable_intr(unsigned int m4u_id) { M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_INT_L2_CONTROL, 0); M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_INT_MAIN_CONTROL, 0); } static inline void m4u_intr_modify_all(unsigned long enable) { int i; for (i = 0; i < TOTAL_M4U_NUM; i++) { if (enable) m4u_enable_intr(i); else m4u_disable_intr(i); } } struct mau_config_info { int m4u_id; int m4u_slave_id; int mau_set; unsigned int start; unsigned int end; unsigned int port_mask; unsigned int larb_mask; unsigned int write_monitor; /* :1; */ unsigned int virt; /* :1; */ unsigned int io; /* :1; */ unsigned int start_bit32; /* :1; */ unsigned int end_bit32; /* :1; */ }; int mau_start_monitor(unsigned int m4u_id, int m4u_slave_id, unsigned int mau_set, int wr, int vir, int io, int bit32, unsigned int start, unsigned int end, unsigned int port_mask, unsigned int larb_mask) { unsigned long m4u_base = gM4UBaseAddr[m4u_id]; if (m4u_base == 0) return -1; M4ULOG_HIGH( "%s [%d], start=0x%x, end=0x%x, write: %d, port_mask=0x%x, larb_mask=0x%x\n", __func__, mau_set, start, end, wr, port_mask, larb_mask); M4U_WriteReg32(m4u_base, REG_MMU_MAU_START(m4u_slave_id, mau_set), start); M4U_WriteReg32(m4u_base, REG_MMU_MAU_START_BIT32(m4u_slave_id, mau_set), !!(bit32)); M4U_WriteReg32(m4u_base, REG_MMU_MAU_END(m4u_slave_id, mau_set), end); M4U_WriteReg32(m4u_base, REG_MMU_MAU_END_BIT32(m4u_slave_id, mau_set), !!(bit32)); M4U_WriteReg32(m4u_base, REG_MMU_MAU_PORT_EN(m4u_slave_id, mau_set), port_mask); m4uHw_set_field_by_mask(m4u_base, REG_MMU_MAU_LARB_EN(m4u_slave_id), F_MAU_LARB_MSK(mau_set), F_MAU_LARB_VAL(mau_set, larb_mask)); m4uHw_set_field_by_mask(m4u_base, REG_MMU_MAU_IO(m4u_slave_id), F_MAU_BIT_VAL(1, mau_set), F_MAU_BIT_VAL(io, mau_set)); m4uHw_set_field_by_mask(m4u_base, REG_MMU_MAU_RW(m4u_slave_id), F_MAU_BIT_VAL(1, mau_set), F_MAU_BIT_VAL(wr, mau_set)); m4uHw_set_field_by_mask(m4u_base, REG_MMU_MAU_VA(m4u_slave_id), F_MAU_BIT_VAL(1, mau_set), F_MAU_BIT_VAL(vir, mau_set)); return 0; } #if 0 int config_mau(M4U_MAU_STRUCT mau) { int i; int free_id = -1; int m4u_id = m4u_port_2_m4u_id(mau.port); int larb = m4u_port_2_larb_id(mau.port); unsigned int MVAStart = mau.mva; unsigned int MVAEnd = mau.mva + mau.size; if (m4u_id != 0) return -1; for (i = 0; i < M4U0_MAU_NR; i++) { if (gM4u0_mau[i].Enabled != 0) { if (MVAStart >= gM4u0_mau[i].MVAStart && MVAEnd <= gM4u0_mau[i].MVAEnd) { /* no overlap */ if (mau.enable == 0) { gM4u0_mau[i].Enabled = 0; mau_start_monitor(0, 0, i, 0, 0, 0, 0, 0, 0, 0, 0); continue; } } } else free_id = i; } if (mau.enable == 0) return 0; if (free_id == -1) { if (mau.force == 0) return -1; free_id = gMAU_candidate_id; if (gMAU_candidate_id == 0) gMAU_candidate_id = M4U0_MAU_NR - 1; else gMAU_candidate_id--; } gM4u0_mau[free_id].Enabled = 1; gM4u0_mau[free_id].MVAStart = MVAStart; gM4u0_mau[free_id].MVAEnd = MVAEnd; gM4u0_mau[free_id].port = mau.port; mau_start_monitor(m4u_id, larb_2_m4u_slave_id(larb), free_id, (int)mau.write, 1, 0, 0, MVAStart, MVAEnd, 1 << m4u_port_2_larb_port(mau.port), 1 << larb); return free_id; } #endif /* notes: you must fill cfg->m4u_id/m4u_slave_id/mau_set before call this func. */ int mau_get_config_info(struct mau_config_info *cfg) { int m4u_id = cfg->m4u_id; int m4u_slave_id = cfg->m4u_slave_id; int mau_set = cfg->mau_set; unsigned long m4u_base = gM4UBaseAddr[m4u_id]; cfg->start = M4U_ReadReg32(m4u_base, REG_MMU_MAU_START(m4u_slave_id, mau_set)); cfg->end = M4U_ReadReg32(m4u_base, REG_MMU_MAU_END(m4u_slave_id, mau_set)); cfg->start_bit32 = M4U_ReadReg32( m4u_base, REG_MMU_MAU_START_BIT32(m4u_slave_id, mau_set)); cfg->end_bit32 = M4U_ReadReg32( m4u_base, REG_MMU_MAU_START_BIT32(m4u_slave_id, mau_set)); cfg->port_mask = M4U_ReadReg32( m4u_base, REG_MMU_MAU_PORT_EN(m4u_slave_id, mau_set)); cfg->larb_mask = m4uHw_get_field_by_mask( m4u_base, REG_MMU_MAU_LARB_EN(m4u_slave_id), F_MAU_LARB_MSK(mau_set)); cfg->io = !!(m4uHw_get_field_by_mask(m4u_base, REG_MMU_MAU_IO(m4u_slave_id), F_MAU_BIT_VAL(1, mau_set))); cfg->write_monitor = !!m4uHw_get_field_by_mask( m4u_base, REG_MMU_MAU_RW(m4u_slave_id), F_MAU_BIT_VAL(1, mau_set)); cfg->virt = !!m4uHw_get_field_by_mask(m4u_base, REG_MMU_MAU_VA(m4u_slave_id), F_MAU_BIT_VAL(1, mau_set)); return 0; } int __mau_dump_status(int m4u_id, int m4u_slave_id, int mau) { unsigned long m4u_base; unsigned int status; unsigned int assert_id, assert_addr, assert_b32; int larb, port; struct mau_config_info mau_cfg; m4u_base = gM4UBaseAddr[m4u_id]; status = M4U_ReadReg32(m4u_base, REG_MMU_MAU_ASSERT_ST(m4u_slave_id)); if (status & (1 << mau)) { M4ULOG_HIGH("mau_assert in set %d\n", mau); assert_id = M4U_ReadReg32( m4u_base, REG_MMU_MAU_ASSERT_ID(m4u_slave_id, mau)); assert_addr = M4U_ReadReg32( m4u_base, REG_MMU_MAU_ADDR(m4u_slave_id, mau)); assert_b32 = M4U_ReadReg32( m4u_base, REG_MMU_MAU_ADDR_BIT32(m4u_slave_id, mau)); larb = F_MMU_MAU_ASSERT_ID_LARB(assert_id); port = F_MMU_MAU_ASSERT_ID_PORT(assert_id); M4ULOG_HIGH("id=0x%x(%s),addr=0x%x,b32=0x%x\n", assert_id, m4u_get_port_name(larb_port_2_m4u_port(larb, port)), assert_addr, assert_b32); M4U_WriteReg32(m4u_base, REG_MMU_MAU_CLR(m4u_slave_id), (1 << mau)); M4U_WriteReg32(m4u_base, REG_MMU_MAU_CLR(m4u_slave_id), 0); mau_cfg.m4u_id = m4u_id; mau_cfg.m4u_slave_id = m4u_slave_id; mau_cfg.mau_set = mau; mau_get_config_info(&mau_cfg); M4ULOG_HIGH( "mau_cfg: start=0x%x,end=0x%x,virt(%d),io(%d),wr(%d),s_b32(%d),e_b32(%d)\n", mau_cfg.start, mau_cfg.end, mau_cfg.virt, mau_cfg.io, mau_cfg.write_monitor, mau_cfg.start_bit32, mau_cfg.end_bit32); } else M4ULOG_MID("mau no assert in set %d\n", mau); return 0; } int mau_dump_status(int m4u_id, int m4u_slave_id) { int i; for (i = 0; i < MAU_NR_PER_M4U_SLAVE; i++) __mau_dump_status(m4u_id, m4u_slave_id, i); return 0; } int m4u_dump_reg(int m4u_index, unsigned int start, unsigned int end) { int i; M4UINFO("Register Start =======\n"); for (i = 0; i < 400 / 4; i += 4) { M4UINFO("0x%x=0x%x, 0x%x=0x%x, 0x%x=0x%x, 0x%x=0x%x\n", (start + 4 * i + 4 * 0), M4U_ReadReg32(gM4UBaseAddr[m4u_index], start + 4 * i + 4 * 0), (start + 4 * i + 4 * 1), M4U_ReadReg32(gM4UBaseAddr[m4u_index], start + 4 * i + 4 * 1), (start + 4 * i + 4 * 2), M4U_ReadReg32(gM4UBaseAddr[m4u_index], start + 4 * i + 4 * 2), (start + 4 * i + 4 * 3), M4U_ReadReg32(gM4UBaseAddr[m4u_index], start + 4 * i + 4 * 3)); } M4UINFO("0xc00=0x%x, 0c04=0x%x, 0xc08=0x%x, 0xc0c=0x%x\n", M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xc00), M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xc04), M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xc08), M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xc0c)); M4UINFO("0xb00=0x%x, 0xb04=0x%x, 0xb08=0x%x, 0xb0c=0x%x\n", M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xb00), M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xb04), M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xb08), M4U_ReadReg32(gM4UBaseAddr[m4u_index], 0xb0c)); M4UINFO("Register End ==========\n"); return 0; } unsigned int m4u_get_main_descriptor(int m4u_id, int m4u_slave_id, int idx) { unsigned int regValue = 0; unsigned long m4u_base = gM4UBaseAddr[m4u_id]; regValue = F_READ_ENTRY_EN | F_READ_ENTRY_MMx_MAIN(m4u_slave_id) | F_READ_ENTRY_MAIN_IDX(idx); M4U_WriteReg32(m4u_base, REG_MMU_READ_ENTRY, regValue); while (M4U_ReadReg32(m4u_base, REG_MMU_READ_ENTRY) & F_READ_ENTRY_EN) ; return M4U_ReadReg32(m4u_base, REG_MMU_DES_RDATA); } unsigned int m4u_get_main_tag(int m4u_id, int m4u_slave_id, int idx) { unsigned long m4u_base = gM4UBaseAddr[m4u_id]; return M4U_ReadReg32(m4u_base, REG_MMU_MAIN_TAG(m4u_slave_id, idx)); } void m4u_get_main_tlb(int m4u_id, int m4u_slave_id, int idx, mmu_tlb_t *pTlb) { pTlb->tag = m4u_get_main_tag(m4u_id, m4u_slave_id, idx); pTlb->desc = m4u_get_main_descriptor(m4u_id, m4u_slave_id, idx); } unsigned int m4u_get_pfh_tlb(int m4u_id, int set, int page, int way, mmu_tlb_t *pTlb) { unsigned int regValue = 0; unsigned long m4u_base = gM4UBaseAddr[m4u_id]; regValue = F_READ_ENTRY_EN | F_READ_ENTRY_PFH | F_READ_ENTRY_PFH_IDX(set) | F_READ_ENTRY_PFH_PAGE_IDX(page) | F_READ_ENTRY_PFH_WAY(way); M4U_WriteReg32(m4u_base, REG_MMU_READ_ENTRY, regValue); while (M4U_ReadReg32(m4u_base, REG_MMU_READ_ENTRY) & F_READ_ENTRY_EN) ; pTlb->desc = M4U_ReadReg32(m4u_base, REG_MMU_DES_RDATA); pTlb->tag = M4U_ReadReg32(m4u_base, REG_MMU_PFH_TAG_RDATA); return 0; } unsigned int m4u_get_pfh_tag(int m4u_id, int set, int page, int way) { mmu_tlb_t tlb; m4u_get_pfh_tlb(m4u_id, set, page, way, &tlb); return tlb.tag; } unsigned int m4u_get_pfh_descriptor(int m4u_id, int set, int page, int way) { mmu_tlb_t tlb; m4u_get_pfh_tlb(m4u_id, set, page, way, &tlb); return tlb.desc; } int m4u_dump_main_tlb(int m4u_id, int m4u_slave_id) { /* M4U related */ unsigned int i = 0; mmu_tlb_t tlb; M4ULOG_HIGH("dump main tlb: m4u %d ====>\n", m4u_id); for (i = 0; i < gM4UTagCount[m4u_id]; i++) { m4u_get_main_tlb(m4u_id, m4u_slave_id, i, &tlb); M4ULOG_HIGH("%d:0x%x:0x%x ", i, tlb.tag, tlb.desc); if ((i + 1) % 8 == 0) M4ULOG_HIGH("===\n"); } return 0; } int m4u_dump_invalid_main_tlb(int m4u_id, int m4u_slave_id) { unsigned int i = 0; mmu_tlb_t tlb; M4UMSG("dump inv main tlb=>\n"); for (i = 0; i < gM4UTagCount[m4u_id]; i++) { m4u_get_main_tlb(m4u_id, m4u_slave_id, i, &tlb); if ((tlb.tag & (F_MAIN_TLB_VALID_BIT | F_MAIN_TLB_INV_DES_BIT)) == (F_MAIN_TLB_VALID_BIT | F_MAIN_TLB_INV_DES_BIT)) M4ULOG_HIGH("%d:0x%x:0x%x ", i, tlb.tag, tlb.desc); } M4ULOG_HIGH("\n"); return 0; } static unsigned int imu_pfh_tag_to_va(int mmu, int set, int way, unsigned int tag) { unsigned int tmp; if (tag & F_PFH_TAG_LAYER_BIT) return F_PFH_TAG_VA_GET(mmu, tag) | ((set) << 15); tmp = F_PFH_TAG_VA_GET(mmu, tag); tmp &= F_MMU_PFH_TAG_VA_LAYER0_MSK(mmu); tmp |= (set) << 23; return tmp; } int m4u_dump_pfh_tlb(int m4u_id) { unsigned int regval; unsigned long m4u_base = gM4UBaseAddr[m4u_id]; int result = 0; int set_nr, way_nr, set, way; int valid; set_nr = MMU_SET_NR(m4u_id); way_nr = MMU_WAY_NR; M4ULOG_HIGH("dump pfh_tlb: m4u %d ====>\n", m4u_id); for (way = 0; way < way_nr; way++) { for (set = 0; set < set_nr; set++) { int page; mmu_tlb_t tlb; regval = M4U_ReadReg32( m4u_base, REG_MMU_PFH_VLD(m4u_id, set, way)); valid = !!(regval & F_MMU_PFH_VLD_BIT(set, way)); m4u_get_pfh_tlb(m4u_id, set, 0, way, &tlb); M4ULOG_HIGH( "va(0x%x) lay(%d) 16x(%d) sec(%d) pfh(%d) v(%d),set(%d),way(%d), 0x%x:", imu_pfh_tag_to_va(m4u_id, set, way, tlb.tag), !!(tlb.tag & F_PFH_TAG_LAYER_BIT), !!(tlb.tag & F_PFH_TAG_16X_BIT), !!(tlb.tag & F_PFH_TAG_SEC_BIT), !!(tlb.tag & F_PFH_TAG_AUTO_PFH), valid, set, way, tlb.desc); for (page = 1; page < MMU_PAGE_PER_LINE; page++) { m4u_get_pfh_tlb(m4u_id, set, page, way, &tlb); M4ULOG_HIGH("0x%x:", tlb.desc); } M4ULOG_HIGH("\n"); } } return result; } int m4u_get_pfh_tlb_all(int m4u_id, mmu_pfh_tlb_t *pfh_buf) { unsigned int regval; unsigned long m4u_base = gM4UBaseAddr[m4u_id]; int set_nr, way_nr, set, way; int valid; int pfh_id = 0; set_nr = MMU_SET_NR(m4u_id); way_nr = MMU_WAY_NR; for (way = 0; way < way_nr; way++) { for (set = 0; set < set_nr; set++) { int page; mmu_tlb_t tlb; regval = M4U_ReadReg32( m4u_base, REG_MMU_PFH_VLD(m4u_id, set, way)); valid = !!(regval & F_MMU_PFH_VLD_BIT(set, way)); m4u_get_pfh_tlb(m4u_id, set, 0, way, &tlb); pfh_buf[pfh_id].tag = tlb.tag; pfh_buf[pfh_id].va = imu_pfh_tag_to_va(m4u_id, set, way, tlb.tag); pfh_buf[pfh_id].layer = !!(tlb.tag & F_PFH_TAG_LAYER_BIT); pfh_buf[pfh_id].x16 = !!(tlb.tag & F_PFH_TAG_16X_BIT); pfh_buf[pfh_id].sec = !!(tlb.tag & F_PFH_TAG_SEC_BIT); pfh_buf[pfh_id].pfh = !!(tlb.tag & F_PFH_TAG_AUTO_PFH); pfh_buf[pfh_id].set = set; pfh_buf[pfh_id].way = way; pfh_buf[pfh_id].valid = valid; pfh_buf[pfh_id].desc[0] = tlb.desc; pfh_buf[pfh_id].page_size = pfh_buf[pfh_id].layer ? MMU_SMALL_PAGE_SIZE : MMU_SECTION_SIZE; for (page = 1; page < MMU_PAGE_PER_LINE; page++) { m4u_get_pfh_tlb(m4u_id, set, page, way, &tlb); pfh_buf[pfh_id].desc[page] = tlb.desc; } pfh_id++; } } return 0; } int m4u_confirm_main_range_invalidated(int m4u_index, int m4u_slave_id, unsigned int MVAStart, unsigned int MVAEnd) { unsigned int i; unsigned int regval; /* /> check Main TLB part */ for (i = 0; i < gM4UTagCount[m4u_index]; i++) { regval = m4u_get_main_tag(m4u_index, m4u_slave_id, i); if (regval & (F_MAIN_TLB_VALID_BIT)) { unsigned int tag_s, tag_e, sa, ea; int layer = regval & F_MAIN_TLB_LAYER_BIT; int large = regval & F_MAIN_TLB_16X_BIT; tag_s = regval & F_MAIN_TLB_VA_MSK; sa = MVAStart & (~(PAGE_SIZE - 1)); ea = MVAEnd | (PAGE_SIZE - 1); if (layer) { /* pte */ if (large) tag_e = tag_s + MMU_LARGE_PAGE_SIZE - 1; else tag_e = tag_s + PAGE_SIZE - 1; if (!((tag_e < sa) || (tag_s > ea))) { M4UERR("main: i=%d, idx=0x%x, MVAStart=0x%x, MVAEnd=0x%x, RegValue=0x%x\n", i, m4u_index, MVAStart, MVAEnd, regval); return -1; } } else { if (large) tag_e = tag_s + MMU_SUPERSECTION_SIZE - 1; else tag_e = tag_s + MMU_SECTION_SIZE - 1; if ((tag_s >= sa) && (tag_e <= ea)) { M4UERR("main: i=%d, idx=0x%x, MVAStart=0x%x, MVAEnd=0x%x, RegValue=0x%x\n", i, m4u_index, MVAStart, MVAEnd, regval); return -1; } } } } return 0; } int m4u_confirm_range_invalidated(int m4u_index, unsigned int MVAStart, unsigned int MVAEnd) { unsigned int i = 0; unsigned int regval; unsigned long m4u_base = gM4UBaseAddr[m4u_index]; int result = 0; int set_nr, way_nr, set, way; /* /> check Main TLB part */ result = m4u_confirm_main_range_invalidated(m4u_index, 0, MVAStart, MVAEnd); if (result < 0) return -1; if (m4u_index == 0) { result = m4u_confirm_main_range_invalidated(m4u_index, 1, MVAStart, MVAEnd); if (result < 0) return -1; } set_nr = MMU_SET_NR(m4u_index); way_nr = MMU_WAY_NR; for (way = 0; way < way_nr; way++) { for (set = 0; set < set_nr; set++) { regval = M4U_ReadReg32( m4u_base, REG_MMU_PFH_VLD(m4u_index, set, way)); if (regval & F_MMU_PFH_VLD_BIT(set, way)) { unsigned int tag = m4u_get_pfh_tag(m4u_index, set, 0, way); unsigned int tag_s, tag_e, sa, ea; int layer = tag & F_PFH_TAG_LAYER_BIT; int large = tag & F_PFH_TAG_16X_BIT; tag_s = imu_pfh_tag_to_va(m4u_index, set, way, tag); sa = MVAStart & (~(PAGE_SIZE - 1)); ea = MVAEnd | (PAGE_SIZE - 1); if (layer) { /* pte */ if (large) tag_e = tag_s + MMU_LARGE_PAGE_SIZE * 8 - 1; else tag_e = tag_s + PAGE_SIZE * 8 - 1; if (!((tag_e < sa) || (tag_s > ea))) { M4UERR("main: i=%d, idx=0x%x, MVAStart=0x%x, MVAEnd=0x%x, RegValue=0x%x\n", i, m4u_index, MVAStart, MVAEnd, regval); return -1; } } else { if (large) tag_e = tag_s + MMU_SUPERSECTION_SIZE * 8 - 1; else tag_e = tag_s + MMU_SECTION_SIZE * 8 - 1; /* if((tag_s>=sa)&&(tag_e<=ea)) */ if (!((tag_e < sa) || (tag_s > ea))) { M4UERR("main: i=%d, idx=0x%x, MVAStart=0x%x, MVAEnd=0x%x, RegValue=0x%x\n", i, m4u_index, MVAStart, MVAEnd, regval); return -1; } } } } } return result; } int m4u_confirm_main_all_invalid(int m4u_index, int m4u_slave_id) { unsigned int i; unsigned int regval; for (i = 0; i < gM4UTagCount[m4u_index]; i++) { regval = m4u_get_main_tag(m4u_index, m4u_slave_id, i); if (regval & (F_MAIN_TLB_VALID_BIT)) { M4UERR("main: i=%d, idx=0x%x, RegValue=0x%x\n", i, m4u_index, regval); return -1; } } return 0; } int m4u_confirm_pfh_all_invalid(int m4u_index) { unsigned int regval; unsigned long m4u_base = gM4UBaseAddr[m4u_index]; int set_nr, way_nr, set, way; set_nr = MMU_SET_NR(m4u_index); way_nr = MMU_WAY_NR; for (way = 0; way < way_nr; way++) { for (set = 0; set < set_nr; set++) { regval = M4U_ReadReg32( m4u_base, REG_MMU_PFH_VLD(m4u_index, set, way)); if (regval & F_MMU_PFH_VLD_BIT(set, way)) return -1; } } return 0; } int m4u_confirm_all_invalidated(int m4u_index) { if (m4u_confirm_main_all_invalid(m4u_index, 0)) return -1; if (m4u_index == 0) { if (m4u_confirm_main_all_invalid(m4u_index, 1)) return -1; } if (m4u_confirm_pfh_all_invalid(m4u_index)) return -1; return 0; } int m4u_power_on(int m4u_index) { return 0; } int m4u_power_off(int m4u_index) { return 0; } static int m4u_clock_on(void) { /* ret = clk_prepare_enable(gM4uDev->infra_m4u);*/ /* if (ret)*/ /* M4UMSG("error: prepare clk infra m4u fail!.\n");*/ return 0; } char *smi_clk_name[] = {"m4u_smi_larb0", "m4u_smi_larb1", "m4u_smi_larb2"}; static int larb_clock_on(int larb, bool config_mtcmos) { #ifdef CONFIG_MTK_SMI_EXT int ret = -1; if (larb < ARRAY_SIZE(smi_clk_name)) ret = smi_bus_prepare_enable(larb, smi_clk_name[larb]); if (ret != 0) M4UMSG("larb_clock_on error: larb %d\n", larb); #endif return 0; } static int larb_clock_off(int larb, bool config_mtcmos) { #ifdef CONFIG_MTK_SMI_EXT int ret = -1; if (larb < ARRAY_SIZE(smi_clk_name)) ret = smi_bus_disable_unprepare(larb, smi_clk_name[larb]); if (ret != 0) M4UMSG("larb_clock_on error: larb %d\n", larb); #endif return 0; } int m4u_enable_prog_dist_by_id(int port, int id) { unsigned long m4u_base = gM4UBaseAddr[m4u_port_2_m4u_id(port)]; spin_lock(&gM4u_reg_lock); m4uHw_set_field_by_mask(m4u_base, REG_MMU_PROG_DIST(id), F_PF_EN(1), 1); spin_unlock(&gM4u_reg_lock); return 0; } int m4u_disable_prog_dist_by_id(int port, int id) { unsigned long m4u_base = gM4UBaseAddr[m4u_port_2_m4u_id(port)]; spin_lock(&gM4u_reg_lock); m4uHw_set_field_by_mask(m4u_base, REG_MMU_PROG_DIST(id), F_PF_EN(1), 0); spin_unlock(&gM4u_reg_lock); return 0; } int m4u_config_prog_dist(M4U_PORT_ID port, int dir, int dist, int en, int mm_id, int sel) { int i, free_id = -1; int m4u_index = m4u_port_2_m4u_id(port); unsigned long m4u_base = gM4UBaseAddr[m4u_index]; unsigned long larb_base; unsigned int larb, larb_port; M4U_PROG_DIST_T *pProgPfh; larb = m4u_port_2_larb_id(port); larb_port = m4u_port_2_larb_port(port); if (unlikely(larb >= SMI_LARB_NR)) { M4UMSG("%s %d err port[%d]\n", __func__, __LINE__, port); return -1; } larb_base = gLarbBaseAddr[larb]; pProgPfh = gM4UProgPfh[m4u_index]; mutex_lock(&gM4u_prog_pfh_mutex); for (i = 0; i < M4U_PROG_PFH_NUM(m4u_index); i++) { if (pProgPfh[i].Enabled == 1) { if (port == pProgPfh[i].port && (sel == 0 || pProgPfh[i].sel == 0)) { M4UMSG("m4u warning: cannot set two direction or difference distance in the same port.\n"); M4UMSG("original value: module = %s, mm_id = %d, dir = %d, dist = %d, sel = %d.\n", m4u_get_port_name(port), mm_id, dir, dist, sel); M4UMSG("new value: module = %s, mm_id = %d, dir = %d, dist = %d, sel = %d.\n", m4u_get_port_name(pProgPfh[i].port), pProgPfh[i].mm_id, pProgPfh[i].dir, pProgPfh[i].dist, pProgPfh[i].sel); free_id = i; break; } } else { free_id = i; break; } } if (free_id == -1) { M4ULOG_MID("warning: can not find available prog pfh reg.\n"); mutex_unlock(&gM4u_prog_pfh_mutex); return -1; } pProgPfh[free_id].Enabled = 1; pProgPfh[free_id].port = port; pProgPfh[free_id].mm_id = mm_id; pProgPfh[free_id].dir = dir; pProgPfh[free_id].dist = dist; pProgPfh[free_id].en = en; pProgPfh[free_id].sel = sel; mutex_unlock(&gM4u_prog_pfh_mutex); spin_lock(&gM4u_reg_lock); m4uHw_set_field_by_mask(m4u_base, REG_MMU_PROG_DIST(free_id), F_PF_ID_COMP_SEL(1), F_PF_ID_COMP_SEL(!!(sel))); m4uHw_set_field_by_mask(m4u_base, REG_MMU_PROG_DIST(free_id), F_PF_DIR(1), F_PF_DIR(!!(dir))); m4uHw_set_field(m4u_base, REG_MMU_PROG_DIST(free_id), F_PF_DIST_MSB - F_PF_DIST_LSB + 1, F_PF_DIST_LSB, dist); m4uHw_set_field(m4u_base, REG_MMU_PROG_DIST(free_id), F_PF_ID_MSB - F_PF_ID_LSB + 1, F_PF_ID_LSB, F_PF_ID(larb, larb_port, mm_id)); m4uHw_set_field_by_mask(m4u_base, REG_MMU_PROG_DIST(free_id), F_PF_EN(1), F_PF_EN(!!(en))); spin_unlock(&gM4u_reg_lock); return free_id; } int m4u_invalid_prog_dist_by_id(int port) { int i; int m4u_index = m4u_port_2_m4u_id(port); int m4u_slave_id = m4u_port_2_m4u_slave_id(port); unsigned long m4u_base = gM4UBaseAddr[m4u_index]; M4U_PROG_DIST_T *pProgPfh = gM4UProgPfh[m4u_index] + M4U_PROG_PFH_NUM(m4u_index) * m4u_slave_id; mutex_lock(&gM4u_prog_pfh_mutex); for (i = 0; i < M4U_PROG_PFH_NUM(m4u_index); i++) { if (pProgPfh[i].Enabled == 1) { if (port == pProgPfh[i].port && pProgPfh[i].sel == 0) { pProgPfh[i].Enabled = 0; break; } } } mutex_unlock(&gM4u_prog_pfh_mutex); if (i == M4U_PROG_PFH_NUM(m4u_index)) { /* M4UMSG ("m4u info: m4u_invalid_prog_dist_by_id cannot found * proj dist set for port %d.\n", port); */ return -1; } spin_lock(&gM4u_reg_lock); /* set to default value */ M4U_WriteReg32(m4u_base, REG_MMU_PROG_DIST(i), 0x800); spin_unlock(&gM4u_reg_lock); return 0; } int m4u_insert_seq_range(M4U_PORT_ID port, unsigned int MVAStart, unsigned int MVAEnd) { int i, free_id = -1; unsigned int m4u_index = m4u_port_2_m4u_id(port); unsigned int m4u_slave_id = m4u_port_2_m4u_slave_id(port); M4U_RANGE_DES_T *pSeq = gM4USeq[m4u_index] + M4U_SEQ_NUM(m4u_index) * m4u_slave_id; M4ULOG_MID( "%s , module:%s, MVAStart:0x%x, MVAEnd:0x%x\n", __func__, m4u_get_port_name(port), MVAStart, MVAEnd); if (MVAEnd - MVAStart < PAGE_SIZE) { M4ULOG_MID( "too small size, skip to insert! module:%s, MVAStart:0x%x, size:%d\n", m4u_get_port_name(port), MVAStart, MVAEnd - MVAStart + 1); return free_id; } /* =============================================== */ /* every seq range has to align to 1M Bytes */ MVAStart &= ~M4U_SEQ_ALIGN_MSK; MVAEnd |= M4U_SEQ_ALIGN_MSK; mutex_lock(&gM4u_seq_mutex); /* ================================================================== */ /* check if the range is overlap with previous ones */ for (i = 0; i < M4U_SEQ_NUM(m4u_index); i++) { if (pSeq[i].Enabled == 1) { if (MVAEnd < pSeq[i].MVAStart || MVAStart > pSeq[i].MVAEnd) /* no overlap */ continue; else { M4ULOG_HIGH( "insert range overlap!: larb=%d,module=%s\n", m4u_port_2_larb_id(port), m4u_get_port_name(port)); M4ULOG_HIGH( "warning: tlb range overlapped with previous ranges, current process=%s,!\n", current->comm); M4ULOG_HIGH( "module=%s, mva_start=0x%x, mva_end=0x%x\n", m4u_get_port_name(port), MVAStart, MVAEnd); M4ULOG_HIGH( "overlapped range id=%d, module=%s, mva_start=0x%x, mva_end=0x%x\n", i, m4u_get_port_name(pSeq[i].port), pSeq[i].MVAStart, pSeq[i].MVAEnd); mutex_unlock(&gM4u_seq_mutex); return -1; } } else free_id = i; } if (free_id == -1) { M4ULOG_MID("warning: can not find available range\n"); mutex_unlock(&gM4u_seq_mutex); return -1; } /* record range information in array */ pSeq[free_id].Enabled = 1; pSeq[free_id].port = port; pSeq[free_id].MVAStart = MVAStart; pSeq[free_id].MVAEnd = MVAEnd; mutex_unlock(&gM4u_seq_mutex); /* set the range register */ MVAStart &= F_SQ_VA_MASK; MVAStart |= F_SQ_EN_BIT; /* align mva end to 1M */ MVAEnd |= ~F_SQ_VA_MASK; spin_lock(&gM4u_reg_lock); { M4U_WriteReg32(gM4UBaseAddr[m4u_index], REG_MMU_SQ_START(m4u_slave_id, free_id), MVAStart); M4U_WriteReg32(gM4UBaseAddr[m4u_index], REG_MMU_SQ_END(m4u_slave_id, free_id), MVAEnd); } spin_unlock(&gM4u_reg_lock); return free_id; } int m4u_invalid_seq_range_by_id(int port, int seq_id) { int m4u_index = m4u_port_2_m4u_id(port); int m4u_slave_id = m4u_port_2_m4u_slave_id(port); unsigned long m4u_base = gM4UBaseAddr[m4u_index]; M4U_RANGE_DES_T *pSeq = gM4USeq[m4u_index] + M4U_SEQ_NUM(m4u_index) * m4u_slave_id; int ret = 0; mutex_lock(&gM4u_seq_mutex); { pSeq[seq_id].Enabled = 0; } mutex_unlock(&gM4u_seq_mutex); spin_lock(&gM4u_reg_lock); M4U_WriteReg32(m4u_base, REG_MMU_SQ_START(m4u_slave_id, seq_id), 0); M4U_WriteReg32(m4u_base, REG_MMU_SQ_END(m4u_slave_id, seq_id), 0); spin_unlock(&gM4u_reg_lock); return ret; } #if 0 static int m4u_invalid_seq_range_by_mva(int m4u_index, int m4u_slave_id, unsigned int MVAStart, unsigned int MVAEnd) { unsigned int i; unsigned int m4u_base = gM4UBaseAddr[m4u_index]; M4U_RANGE_DES_T *pSeq = gM4USeq[m4u_index] + SEQ_NR_PER_M4U_SLAVE*m4u_slave_id; int ret = -1; MVAStart &= ~M4U_SEQ_ALIGN_MSK; MVAEnd |= M4U_SEQ_ALIGN_MSK; mutex_lock(&gM4u_seq_mutex); for (i = 0; i < SEQ_NR_PER_M4U_SLAVE; i++) { if (pSeq[i].Enabled == 1 && pSeq[i].MVAStart >= MVAStart && pSeq[i].MVAEnd <= MVAEnd) { pSeq[i].Enabled = 0; spin_lock(&gM4u_reg_lock); M4U_WriteReg32(m4u_base, REG_MMU_SQ_START(m4u_slave_id, i), 0); M4U_WriteReg32(m4u_base, REG_MMU_SQ_END(m4u_slave_id, i), 0); spin_unlock(&gM4u_reg_lock); break; } } mutex_unlock(&gM4u_seq_mutex); return ret; } #endif static int _m4u_config_port(int port, int virt, int sec, int dis, int dir) { int m4u_index = m4u_port_2_m4u_id(port); /* unsigned long m4u_base = gM4UBaseAddr[m4u_index]; */ unsigned long larb_base; unsigned int larb, larb_port; int ret = 0; if (virt == 0 || sec == 1) M4ULOG_HIGH("config_port:%s,v%d,s%d\n", m4u_get_port_name(port), virt, sec); mmprofile_log_ex(M4U_MMP_Events[M4U_MMP_CONFIG_PORT], MMPROFILE_FLAG_START, port, virt); /* Prefetch Distance & Direction, one bit for each port, 1:-, 0:+ */ if (dir != 0 || dis != 1) m4u_config_prog_dist(port, dir, dis, 1, 0, 0); else m4u_invalid_prog_dist_by_id(port); if (virt == 0) m4u_invalid_prog_dist_by_id(port); spin_lock(&gM4u_reg_lock); if (m4u_index == 0) { int mmu_en = 0; larb = m4u_port_2_larb_id(port); larb_port = m4u_port_2_larb_port(port); if (unlikely(larb >= SMI_LARB_NR)) { M4UMSG("%s %d err port[%d]\n", __func__, __LINE__, port); spin_unlock(&gM4u_reg_lock); return -1; } larb_base = gLarbBaseAddr[larb]; m4uHw_set_field_by_mask(larb_base, SMI_LARB_NON_SEC_CONx(larb_port), F_SMI_MMU_EN, !!(virt)); /* debug use */ mmu_en = m4uHw_get_field_by_mask( larb_base, SMI_LARB_NON_SEC_CONx(larb_port), F_SMI_MMU_EN); if (!!(mmu_en) != virt) { M4ULOG_HIGH( "%s error, port=%s, Virtuality=%d, mmu_en=%x (%x, %x)\n", __func__, m4u_get_port_name(port), virt, mmu_en, M4U_ReadReg32(larb_base, SMI_LARB_NON_SEC_CONx(larb_port)), F_SMI_MMU_EN); } } else { larb_port = m4u_port_2_larb_port(port); m4uHw_set_field_by_mask(gPericfgBaseAddr, REG_PERIAXI_BUS_CTL3, F_PERI_MMU_EN(larb_port, 1), F_PERI_MMU_EN(larb_port, !!(virt))); } spin_unlock(&gM4u_reg_lock); mmprofile_log_ex(M4U_MMP_Events[M4U_MMP_CONFIG_PORT], MMPROFILE_FLAG_END, dis, dir); return ret; } static inline void _m4u_port_clock_toggle(int m4u_index, int larb, int on) { unsigned long long start, end; mmprofile_log_ex(M4U_MMP_Events[M4U_MMP_TOGGLE_CG], MMPROFILE_FLAG_START, larb, on); if (m4u_index == 0) { start = sched_clock(); if (on) larb_clock_on(larb, 1); else larb_clock_off(larb, 1); end = sched_clock(); if (end - start > 50000000ULL) { /* unit is ns */ M4ULOG_HIGH("warn: larb%d clock %d time: %lld ns\n", larb, on, end - start); } } mmprofile_log_ex(M4U_MMP_Events[M4U_MMP_TOGGLE_CG], MMPROFILE_FLAG_END, 0, 0); } /* native */ int m4u_config_port(struct m4u_port_config_struct *pM4uPort) { M4U_PORT_ID PortID = (pM4uPort->ePortID); int m4u_index = m4u_port_2_m4u_id(PortID); unsigned int larb = m4u_port_2_larb_id(PortID); int ret; #ifdef M4U_TEE_SERVICE_ENABLE unsigned int larb_port, mmu_en = 0, sec_en = 0; #endif if (unlikely(larb >= SMI_LARB_NR)) { m4u_err("%s %d err port[%d]\n", __func__, __LINE__, PortID); return -1; } _m4u_port_clock_toggle(m4u_index, larb, 1); #ifdef M4U_TEE_SERVICE_ENABLE larb_port = m4u_port_2_larb_port(PortID); /* mmu_en = !!(m4uHw_get_field_by_mask(gLarbBaseAddr[larb], * SMI_LARB_MMU_EN, F_SMI_MMU_EN(larb_port, 1))); */ /* sec_en = !!(m4uHw_get_field_by_mask(gLarbBaseAddr[larb], * SMI_LARB_SEC_EN, F_SMI_SEC_EN(larb_port, 1))); */ M4ULOG_HIGH( "%s: %s, m4u_tee_en:%d, mmu_en: %d -> %d, sec_en:%d -> %d\n", __func__, m4u_get_port_name(PortID), m4u_tee_en, mmu_en, pM4uPort->Virtuality, sec_en, pM4uPort->Security); #if 0 if (mmu_en == pM4uPort->Virtuality && sec_en == pM4uPort->Security) { _m4u_port_clock_toggle(m4u_index, larb, 0); return 0; } #endif if (m4u_tee_en) m4u_config_port_tee(pM4uPort); else #endif { ret = _m4u_config_port(PortID, pM4uPort->Virtuality, pM4uPort->Security, pM4uPort->Distance, pM4uPort->Direction); } _m4u_port_clock_toggle(m4u_index, larb, 0); return 0; } int m4u_config_port_ext(struct m4u_port_config_struct *pM4uPort) { int ret = m4u_config_port(pM4uPort); return ret; } void m4u_port_array_init(struct m4u_port_array *port_array) { memset(port_array, 0, sizeof(struct m4u_port_array)); } int m4u_port_array_add(struct m4u_port_array *port_array, unsigned int port, int m4u_en, int secure) { if (port >= M4U_PORT_NR) { M4UMSG("error: port_array_add, port=%d, v(%d), s(%d)\n", port, m4u_en, secure); return -1; } port_array->ports[port] = M4U_PORT_ATTR_EN; if (m4u_en) port_array->ports[port] |= M4U_PORT_ATTR_VIRTUAL; if (secure) port_array->ports[port] |= M4U_PORT_ATTR_SEC; return 0; } int m4u_config_port_array(struct m4u_port_array *port_array) { int port, larb, larb_port; int ret = 0; int m4u_index; unsigned int config_larb[SMI_LARB_NR] = {0}; unsigned int regNew[SMI_LARB_NR][32] = {{0} }; #ifdef M4U_TEE_SERVICE_ENABLE unsigned char m4u_port_array[(M4U_PORT_NR + 1) / 2] = {0}; #endif for (port = 0; port < M4U_PORT_NR; port++) { if (port_array->ports[port] && M4U_PORT_ATTR_EN != 0) { unsigned int value; larb = m4u_port_2_larb_id(port); larb_port = m4u_port_2_larb_port(port); if (unlikely(larb >= SMI_LARB_NR)) { M4UMSG("%s %d err port[%d]\n", __func__, __LINE__, port); return -1; } config_larb[larb] |= (1 << larb_port); regNew[larb][larb_port] = value = !!port_array->ports[port] && !!M4U_PORT_ATTR_VIRTUAL; #ifdef M4U_TEE_SERVICE_ENABLE { unsigned char attr = ((!!value) << 1) | 0x1; if (port % 2) m4u_port_array[port / 2] |= (attr << 4); else m4u_port_array[port / 2] |= attr; } #endif } } /* enable larb clock */ for (larb = 0; larb < SMI_LARB_NR; larb++) if (config_larb[larb] != 0) _m4u_port_clock_toggle(0, larb, 1); #ifdef M4U_TEE_SERVICE_ENABLE if (m4u_tee_en) { m4u_config_port_array_tee(m4u_port_array); for (larb = 0; larb < SMI_LARB_NR; larb++) { if (config_larb[larb] != 0) _m4u_port_clock_toggle(0, larb, 0); } return ret; } #endif /* config port */ for (port = 0; port < gM4u_port_num; port++) { if ((port_array->ports[port] && M4U_PORT_ATTR_EN) == 0) continue; m4u_index = m4u_port_2_m4u_id(port); if (m4u_index == 0) { unsigned int orig_value; larb = m4u_port_2_larb_id(port); larb_port = m4u_port_2_larb_port(port); if (unlikely(larb >= SMI_LARB_NR)) { M4UMSG("%s %d err port[%d]\n", __func__, __LINE__, port); return -1; } orig_value = m4uHw_get_field_by_mask( gLarbBaseAddr[larb], SMI_LARB_NON_SEC_CONx(larb_port), F_SMI_NON_SEC_MMU_EN(1)); if (orig_value != regNew[larb][larb_port]) { spin_lock(&gM4u_reg_lock); m4uHw_set_field_by_mask( gLarbBaseAddr[larb], SMI_LARB_NON_SEC_CONx(larb_port), F_SMI_MMU_EN, F_SMI_NON_SEC_MMU_EN( !!(regNew[larb][larb_port]))); spin_unlock(&gM4u_reg_lock); } } } /* disable larb clock */ for (larb = 0; larb < SMI_LARB_NR; larb++) if (config_larb[larb] != 0) _m4u_port_clock_toggle(0, larb, 0); return ret; } void m4u_get_perf_counter(int m4u_index, int m4u_slave_id, M4U_PERF_COUNT *pM4U_perf_count) { unsigned long m4u_base = gM4UBaseAddr[m4u_index]; pM4U_perf_count->transaction_cnt = M4U_ReadReg32(m4u_base, REG_MMU_ACC_CNT(m4u_slave_id)); /* Transaction access count */ pM4U_perf_count->main_tlb_miss_cnt = M4U_ReadReg32(m4u_base, REG_MMU_MAIN_MSCNT(m4u_slave_id)); /* Main TLB miss count */ pM4U_perf_count->pfh_tlb_miss_cnt = M4U_ReadReg32( m4u_base, REG_MMU_PF_MSCNT); /* /> Prefetch TLB miss count */ pM4U_perf_count->pfh_cnt = M4U_ReadReg32(m4u_base, REG_MMU_PF_CNT); /* /> Prefetch count */ pM4U_perf_count->rs_perf_cnt = M4U_ReadReg32(m4u_base, REG_MMU_RS_PERF_CNT(m4u_slave_id)); } int m4u_monitor_start(int m4u_id) { unsigned long m4u_base = gM4UBaseAddr[m4u_id]; M4UINFO("====m4u_monitor_start: %d======\n", m4u_id); /* clear GMC performance counter */ m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_MONITOR_CLR(1), F_MMU_CTRL_MONITOR_CLR(1)); m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_MONITOR_CLR(1), F_MMU_CTRL_MONITOR_CLR(0)); /* enable GMC performance monitor */ m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_MONITOR_EN(1), F_MMU_CTRL_MONITOR_EN(1)); return 0; } int m4u_monitor_stop(int m4u_id) { M4U_PERF_COUNT cnt; int m4u_index = m4u_id; unsigned long m4u_base = gM4UBaseAddr[m4u_index]; M4UINFO("====m4u_monitor_stop: %d======\n", m4u_id); /* disable GMC performance monitor */ m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_MONITOR_EN(1), F_MMU_CTRL_MONITOR_EN(0)); m4u_get_perf_counter(m4u_index, 0, &cnt); /* read register get the count */ M4ULOG_MID( "[M4U%d-%d] total:%u, main miss:%u, pfh miss(walk):%u, auto pfh:%u\n", m4u_id, 0, cnt.transaction_cnt, cnt.main_tlb_miss_cnt, cnt.pfh_tlb_miss_cnt, cnt.pfh_cnt); return 0; } void m4u_print_perf_counter(int m4u_index, int m4u_slave_id, const char *msg) { M4U_PERF_COUNT cnt; M4UINFO("====m4u performance count for %s m4u%d_%d======\n", msg, m4u_index, m4u_slave_id); m4u_get_perf_counter(m4u_index, m4u_slave_id, &cnt); M4UINFO("total trans=%u, main_miss=%u, pfh_miss=%u, pfh_cnt=%u, rs_perf_cnt=%u\n", cnt.transaction_cnt, cnt.main_tlb_miss_cnt, cnt.pfh_tlb_miss_cnt, cnt.pfh_cnt, cnt.rs_perf_cnt); } #define M4U_REG_BACKUP_CNT (110) #define M4U_REG_BACKUP_SIZE (M4U_REG_BACKUP_CNT*sizeof(unsigned int)) static unsigned int *pM4URegBackUp; static unsigned int gM4u_reg_backup_real_size; #define __M4U_BACKUP(base, reg, back) ((back) = M4U_ReadReg32(base, reg)) void __M4U_RESTORE(unsigned long base, unsigned int reg, unsigned int back) { M4U_WriteReg32(base, reg, back); } int m4u_reg_backup(void) { unsigned int *pReg = pM4URegBackUp; unsigned long m4u_base; int m4u_id, m4u_slave; int seq, mau; unsigned int real_size; int dist; for (m4u_id = 0; m4u_id < TOTAL_M4U_NUM; m4u_id++) { m4u_base = gM4UBaseAddr[m4u_id]; __M4U_BACKUP(m4u_base, REG_MMUg_PT_BASE, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMUg_PT_BASE_SEC, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_SEC_ABORT_INFO, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_STANDARD_AXI_MODE, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_PRIORITY, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_DCM_DIS, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_WR_LEN, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_HW_DEBUG, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_NON_BLOCKING_DIS, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_LEGACY_4KB_MODE, *(pReg++)); for (dist = 0; dist < MMU_TOTAL_PROG_DIST_NR; dist++) __M4U_BACKUP(m4u_base, REG_MMU_PROG_DIST(dist), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_CTRL_REG, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_IVRP_PADDR, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_INT_L2_CONTROL, *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_INT_MAIN_CONTROL, *(pReg++)); for (m4u_slave = 0; m4u_slave < M4U_SLAVE_NUM(m4u_id); m4u_slave++) { for (seq = 0; seq < M4U_SEQ_NUM(m4u_id); seq++) { __M4U_BACKUP(m4u_base, REG_MMU_SQ_START(m4u_slave, seq), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_SQ_END(m4u_slave, seq), *(pReg++)); } for (mau = 0; mau < MAU_NR_PER_M4U_SLAVE; mau++) { __M4U_BACKUP(m4u_base, REG_MMU_MAU_START(m4u_slave, mau), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_START_BIT32( m4u_slave, mau), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_END(m4u_slave, mau), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_END_BIT32( m4u_slave, mau), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_PORT_EN( m4u_slave, mau), *(pReg++)); } __M4U_BACKUP(m4u_base, REG_MMU_MAU_LARB_EN(m4u_slave), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_IO(m4u_slave), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_RW(m4u_slave), *(pReg++)); __M4U_BACKUP(m4u_base, REG_MMU_MAU_VA(m4u_slave), *(pReg++)); } } /* check register size (to prevent overflow) * Notice: real_size equals to count, * NOT "count*sizeof(unsigned int)" !! */ real_size = (pReg - pM4URegBackUp); if (real_size > M4U_REG_BACKUP_CNT) m4u_aee_print("m4u_reg overflow! %d>%d\n", real_size, (int)M4U_REG_BACKUP_CNT); gM4u_reg_backup_real_size = real_size; return 0; } int m4u_reg_restore(void) { unsigned int *pReg = pM4URegBackUp; unsigned long m4u_base; int m4u_id, m4u_slave; int seq, mau; unsigned int real_size; int dist; for (m4u_id = 0; m4u_id < TOTAL_M4U_NUM; m4u_id++) { m4u_base = gM4UBaseAddr[m4u_id]; __M4U_RESTORE(m4u_base, REG_MMUg_PT_BASE, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMUg_PT_BASE_SEC, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_SEC_ABORT_INFO, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_STANDARD_AXI_MODE, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_PRIORITY, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_DCM_DIS, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_WR_LEN, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_HW_DEBUG, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_NON_BLOCKING_DIS, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_LEGACY_4KB_MODE, *(pReg++)); for (dist = 0; dist < MMU_TOTAL_PROG_DIST_NR; dist++) __M4U_RESTORE(m4u_base, REG_MMU_PROG_DIST(dist), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_CTRL_REG, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_IVRP_PADDR, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_INT_L2_CONTROL, *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_INT_MAIN_CONTROL, *(pReg++)); for (m4u_slave = 0; m4u_slave < M4U_SLAVE_NUM(m4u_id); m4u_slave++) { for (seq = 0; seq < M4U_SEQ_NUM(m4u_id); seq++) { __M4U_RESTORE(m4u_base, REG_MMU_SQ_START(m4u_slave, seq), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_SQ_END(m4u_slave, seq), *(pReg++)); } for (mau = 0; mau < MAU_NR_PER_M4U_SLAVE; mau++) { __M4U_RESTORE(m4u_base, REG_MMU_MAU_START(m4u_slave, mau), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_START_BIT32( m4u_slave, mau), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_END(m4u_slave, mau), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_END_BIT32( m4u_slave, mau), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_PORT_EN( m4u_slave, mau), *(pReg++)); } __M4U_RESTORE(m4u_base, REG_MMU_MAU_LARB_EN(m4u_slave), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_IO(m4u_slave), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_RW(m4u_slave), *(pReg++)); __M4U_RESTORE(m4u_base, REG_MMU_MAU_VA(m4u_slave), *(pReg++)); } m4uHw_set_field_by_mask(m4u_base, REG_MMU_DUMMY, F_REG_MMU_IDLE_ENABLE, 0); } /* check register size (to prevent overflow) */ real_size = (pReg - pM4URegBackUp); if (real_size != gM4u_reg_backup_real_size) m4u_aee_print("m4u_reg_retore %d!=%d\n", real_size, gM4u_reg_backup_real_size); return 0; } static unsigned int larb_reg_backup_buf[SMI_LARB_NR][64]; static void larb_backup(unsigned int larb_idx) { unsigned long larb_base; unsigned int i; if (larb_idx >= SMI_LARB_NR) { M4UMSG("error: %s larb_idx = %d\n", __func__, larb_idx); return; } larb_base = gLarbBaseAddr[larb_idx]; #ifdef M4U_TEE_SERVICE_ENABLE if (m4u_tee_en) /* m4u_larb_backup_sec(larb_idx); */ #endif { for (i = 0; i < 32; i++) __M4U_BACKUP(larb_base, SMI_LARB_NON_SEC_CONx(i), larb_reg_backup_buf[larb_idx][i]); } } static void larb_restore(unsigned int larb_idx) { unsigned long larb_base; unsigned int i; if (larb_idx >= SMI_LARB_NR) { M4UMSG("error: %s larb_idx = %d\n", __func__, larb_idx); return; } larb_base = gLarbBaseAddr[larb_idx]; #ifdef M4U_TEE_SERVICE_ENABLE if (m4u_tee_en) m4u_larb_restore_sec(larb_idx); else #endif { for (i = 0; i < 32; i++) __M4U_RESTORE(larb_base, SMI_LARB_NON_SEC_CONx(i), larb_reg_backup_buf[larb_idx][i]); } } static unsigned int larb0_cnt; void m4u_larb0_enable(char *name) { M4UMSG("m4u_larb0_enable, refcnt: %d, %s\n", larb0_cnt, name); mutex_lock(&m4u_larb0_mutex); larb_clock_on(0, 1); if (larb0_cnt == 0) larb_restore(0); larb0_cnt++; mutex_unlock(&m4u_larb0_mutex); } void m4u_larb0_disable(char *name) { M4UMSG("m4u_larb0_disable, refcnt: %d, %s\n", larb0_cnt, name); mutex_lock(&m4u_larb0_mutex); larb0_cnt--; if (larb0_cnt == 0) larb_backup(0); larb_clock_off(0, 1); mutex_unlock(&m4u_larb0_mutex); } void m4u_print_port_status(struct seq_file *seq, int only_print_active) { int port, mmu_en = 0; int m4u_index, larb, larb_port; unsigned long larb_base; M4U_PRINT_LOG_OR_SEQ(seq, "m4u_print_port_status ========>\n"); for (port = 0; port < gM4u_port_num; port++) { m4u_index = m4u_port_2_m4u_id(port); if (m4u_index == 0) { larb = m4u_port_2_larb_id(port); larb_port = m4u_port_2_larb_port(port); if (unlikely(larb >= SMI_LARB_NR)) { M4U_PRINT_LOG_OR_SEQ(seq, "%s %d err port[%d]\n", __func__, __LINE__, port); return; } larb_base = gLarbBaseAddr[larb]; mmu_en = m4uHw_get_field_by_mask( larb_base, SMI_LARB_NON_SEC_CONx(larb_port), F_SMI_NON_SEC_MMU_EN(1)); } else { larb_port = m4u_port_2_larb_port(port); mmu_en = m4uHw_get_field_by_mask( gPericfgBaseAddr, REG_PERIAXI_BUS_CTL3, F_PERI_MMU_EN(larb_port, 1)); } if (only_print_active && !mmu_en) continue; M4U_PRINT_LOG_OR_SEQ(seq, "%s(%d),", m4u_get_port_name(port), !!mmu_en); } M4U_PRINT_LOG_OR_SEQ(seq, "\n"); } #if 0 static int m4u_enable_prefetch(M4U_PORT_ID PortID) { unsigned long m4u_base = gM4UBaseAddr[m4u_port_2_m4u_id(PortID)]; m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_PFH_DIS(1), F_MMU_CTRL_PFH_DIS(0)); return 0; } static int m4u_disable_prefetch(M4U_PORT_ID PortID) { unsigned long m4u_base = gM4UBaseAddr[m4u_port_2_m4u_id(PortID)]; m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_PFH_DIS(1), F_MMU_CTRL_PFH_DIS(1)); return 0; } static int m4u_enable_error_hang(int m4u_id) { unsigned long m4u_base = gM4UBaseAddr[m4u_id]; m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_INT_HANG_en(1), F_MMU_CTRL_INT_HANG_en(1)); return 0; } static int m4u_disable_error_hang(int m4u_id) { unsigned long m4u_base = gM4UBaseAddr[m4u_id]; m4uHw_set_field_by_mask(m4u_base, REG_MMU_CTRL_REG, F_MMU_CTRL_INT_HANG_en(1), F_MMU_CTRL_INT_HANG_en(0)); return 0; } #endif int m4u_register_reclaim_callback(int port, m4u_reclaim_mva_callback_t *fn, void *data) { if (port >= M4U_PORT_UNKNOWN) { M4UMSG("%s fail, port=%d\n", __func__, port); return -1; } gM4uPort[port].reclaim_fn = fn; gM4uPort[port].reclaim_data = data; return 0; } int m4u_unregister_reclaim_callback(int port) { if (port >= M4U_PORT_UNKNOWN) { M4UMSG("%s fail, port=%d\n", __func__, port); return -1; } gM4uPort[port].reclaim_fn = NULL; gM4uPort[port].reclaim_data = NULL; return 0; } int m4u_reclaim_notify(int port, unsigned int mva, unsigned int size) { int i; for (i = 0; i < M4U_PORT_UNKNOWN; i++) { if (gM4uPort[i].reclaim_fn) gM4uPort[i].reclaim_fn(port, mva, size, gM4uPort[i].reclaim_data); } return 0; } int m4u_register_fault_callback(int port, m4u_fault_callback_t *fn, void *data) { if (port >= M4U_PORT_UNKNOWN) { M4UMSG("%s fail, port=%d\n", __func__, port); return -1; } gM4uPort[port].fault_fn = fn; gM4uPort[port].fault_data = data; return 0; } int m4u_unregister_fault_callback(int port) { if (port >= M4U_PORT_UNKNOWN) { M4UMSG("%s fail, port=%d\n", __func__, port); return -1; } gM4uPort[port].fault_fn = NULL; gM4uPort[port].fault_data = NULL; return 0; } int m4u_enable_tf(int port, bool fgenable) { if (port < 0 || port >= M4U_PORT_UNKNOWN) { M4UMSG("%s fail,m port=%d\n", __func__, port); return -1; } gM4uPort[port].enable_tf = fgenable; return 0; } /* ============================================================================== */ static struct timer_list m4u_isr_pause_timer; static void m4u_isr_restart(struct timer_list *unused) { M4UMSG("restart m4u irq\n"); m4u_intr_modify_all(1); } static int m4u_isr_pause_timer_init(void) { timer_setup(&m4u_isr_pause_timer, m4u_isr_restart, 0); return 0; } static int m4u_isr_pause(int delay) { m4u_intr_modify_all(0); /* disable all intr */ m4u_isr_pause_timer.expires = jiffies + delay * HZ; /* delay seconds */ add_timer(&m4u_isr_pause_timer); M4UMSG("warning: stop m4u irq for %ds\n", delay); return 0; } static void m4u_isr_record(void) { static int m4u_isr_cnt; static unsigned long first_jiffies; /* we allow one irq in 1s, or we will disable them after 5s. */ if (!m4u_isr_cnt || time_after(jiffies, first_jiffies + m4u_isr_cnt * HZ)) { m4u_isr_cnt = 1; first_jiffies = jiffies; } else { m4u_isr_cnt++; if (m4u_isr_cnt >= 5) { /* 5 irqs come in 5s, too many ! */ /* disable irq for a while, to avoid HWT timeout */ m4u_isr_pause(10); m4u_isr_cnt = 0; } } } #define MMU_INT_REPORT(mmu, mmu_2nd_id, id) \ M4UMSG("iommu%d_%d " #id "(0x%x) int happens!!\n", mmu, mmu_2nd_id, id) irqreturn_t MTK_M4U_isr(int irq, void *dev_id) { unsigned long m4u_base; unsigned int m4u_index; if (irq == gM4uDev->irq_num[0]) { m4u_base = gM4UBaseAddr[0]; m4u_index = 0; } else { M4UMSG("MTK_M4U_isr(), Invalid irq number %d\n", irq); return -1; } { /* L2 interrupt */ unsigned int regval = M4U_ReadReg32(m4u_base, REG_MMU_L2_FAULT_ST); M4UMSG("m4u L2 interrupt sta=0x%x\n", regval); if (regval & F_INT_L2_MULTI_HIT_FAULT) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_MULTI_HIT_FAULT); if (regval & F_INT_L2_TABLE_WALK_FAULT) { unsigned int fault_va, layer; MMU_INT_REPORT(m4u_index, 0, F_INT_L2_TABLE_WALK_FAULT); fault_va = M4U_ReadReg32(m4u_base, REG_MMU_TBWALK_FAULT_VA); layer = fault_va & 1; fault_va &= (~1); m4u_aee_print( "L2 table walk fault: mva=0x%x, layer=%d\n", fault_va, layer); } if (regval & F_INT_L2_PFH_DMA_FIFO_OVERFLOW) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_PFH_DMA_FIFO_OVERFLOW); if (regval & F_INT_L2_MISS_DMA_FIFO_OVERFLOW) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_MISS_DMA_FIFO_OVERFLOW); if (regval & F_INT_L2_INVALD_DONE) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_INVALD_DONE); if (regval & F_INT_L2_PFH_OUT_FIFO_ERROR) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_PFH_OUT_FIFO_ERROR); if (regval & F_INT_L2_PFH_IN_FIFO_ERROR) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_PFH_IN_FIFO_ERROR); if (regval & F_INT_L2_MISS_OUT_FIFO_ERROR) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_MISS_OUT_FIFO_ERROR); if (regval & F_INT_L2_MISS_IN_FIFO_ERR) MMU_INT_REPORT(m4u_index, 0, F_INT_L2_MISS_IN_FIFO_ERR); } { unsigned int IntrSrc = M4U_ReadReg32(m4u_base, REG_MMU_MAIN_FAULT_ST); int m4u_slave_id; unsigned int regval; int layer, write, m4u_port; unsigned int fault_mva, fault_pa; M4UMSG("m4u main interrupt happened: sta=0x%x\n", IntrSrc); if (IntrSrc & (F_INT_MMU0_MAIN_MSK | F_INT_MMU0_MAU_MSK)) m4u_slave_id = 0; else if (IntrSrc & (F_INT_MMU1_MAIN_MSK | F_INT_MMU1_MAU_MSK)) m4u_slave_id = 1; else { M4UMSG("m4u interrupt error: status = 0x%x\n", IntrSrc); m4u_clear_intr(m4u_index); return 0; } /* read error info from registers */ fault_mva = M4U_ReadReg32(m4u_base, REG_MMU_FAULT_VA(m4u_slave_id)); layer = !!(fault_mva & F_MMU_FAULT_VA_LAYER_BIT); write = !!(fault_mva & F_MMU_FAULT_VA_WRITE_BIT); fault_mva &= F_MMU_FAULT_VA_MSK; fault_pa = M4U_ReadReg32(m4u_base, REG_MMU_INVLD_PA(m4u_slave_id)); regval = M4U_ReadReg32(m4u_base, REG_MMU_INT_ID(m4u_slave_id)); m4u_port = m4u_get_port_by_tf_id(m4u_index, regval); /* dump something quickly */ /* m4u_dump_rs_info(m4u_index, m4u_slave_id); */ m4u_dump_invalid_main_tlb(m4u_index, m4u_slave_id); /* m4u_dump_reg(m4u_index, 0x860); */ /* m4u_dump_main_tlb(m4u_index, 0); */ /* m4u_dump_pfh_tlb(m4u_index); */ if (IntrSrc & F_INT_TRANSLATION_FAULT(m4u_slave_id)) { int bypass_DISP_TF = 0; MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_TRANSLATION_FAULT(m4u_slave_id)); M4UMSG("fault: port=%s, mva=0x%x, pa=0x%x, layer=%d, wr=%d, 0x%x, protctPA 0x%x\n", m4u_get_port_name(m4u_port), fault_mva, fault_pa, layer, write, regval, M4U_ReadReg32(m4u_base, REG_MMU_IVRP_PADDR)); if (m4u_port == M4U_PORT_DISP_OVL0) { unsigned int valid_mva = 0; unsigned int valid_size = 0; unsigned int valid_mva_end = 0; m4u_query_mva_info(fault_mva - 1, 0, &valid_mva, &valid_size); if (valid_mva != 0 && valid_size != 0) valid_mva_end = valid_mva + valid_size; if (valid_mva_end != 0 && fault_mva < valid_mva_end + SZ_4K) { M4UMSG("bypass disp TF, valid mva=0x%x, size=0x%x, mva_end=0x%x\n", valid_mva, valid_size, valid_mva_end); bypass_DISP_TF = 1; } } if (gM4uPort[m4u_port].enable_tf == 1 && bypass_DISP_TF == 0) { m4u_dump_pte_nolock( m4u_get_domain_by_port(m4u_port), fault_mva); m4u_print_port_status(NULL, 1); /* call user's callback to dump user registers */ if (m4u_port < M4U_PORT_UNKNOWN && gM4uPort[m4u_port].fault_fn) { gM4uPort[m4u_port].fault_fn( m4u_port, fault_mva, gM4uPort[m4u_port].fault_data); } m4u_dump_buf_info(NULL); m4u_aee_print( "\nCRDISPATCH_KEY:M4U_%s\ntranslation fault: port=%s, mva=0x%x, pa=0x%x\n", m4u_get_port_name(m4u_port), m4u_get_port_name(m4u_port), fault_mva, fault_pa); } mmprofile_log_ex(M4U_MMP_Events[M4U_MMP_M4U_ERROR], MMPROFILE_FLAG_PULSE, m4u_port, fault_mva); } if (IntrSrc & F_INT_MAIN_MULTI_HIT_FAULT(m4u_slave_id)) { MMU_INT_REPORT( m4u_index, m4u_slave_id, F_INT_MAIN_MULTI_HIT_FAULT(m4u_slave_id)); } if (IntrSrc & F_INT_INVALID_PHYSICAL_ADDRESS_FAULT(m4u_slave_id)) { if (!(IntrSrc & F_INT_TRANSLATION_FAULT(m4u_slave_id))) { MMU_INT_REPORT( m4u_index, m4u_slave_id, F_INT_INVALID_PHYSICAL_ADDRESS_FAULT( m4u_slave_id)); } } if (IntrSrc & F_INT_ENTRY_REPLACEMENT_FAULT(m4u_slave_id)) { MMU_INT_REPORT( m4u_index, m4u_slave_id, F_INT_ENTRY_REPLACEMENT_FAULT(m4u_slave_id)); } if (IntrSrc & F_INT_TLB_MISS_FAULT(m4u_slave_id)) MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_TLB_MISS_FAULT(m4u_slave_id)); if (IntrSrc & F_INT_MISS_FIFO_ERR(m4u_slave_id)) MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_MISS_FIFO_ERR(m4u_slave_id)); if (IntrSrc & F_INT_PFH_FIFO_ERR(m4u_slave_id)) MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_PFH_FIFO_ERR(m4u_slave_id)); if (IntrSrc & F_INT_MAU(m4u_slave_id, 0)) { MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_MAU(m4u_slave_id, 0)); __mau_dump_status(m4u_index, m4u_slave_id, 0); } if (IntrSrc & F_INT_MAU(m4u_slave_id, 1)) { MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_MAU(m4u_slave_id, 1)); __mau_dump_status(m4u_index, m4u_slave_id, 1); } if (IntrSrc & F_INT_MAU(m4u_slave_id, 2)) { MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_MAU(m4u_slave_id, 2)); __mau_dump_status(m4u_index, m4u_slave_id, 2); } if (IntrSrc & F_INT_MAU(m4u_slave_id, 3)) { MMU_INT_REPORT(m4u_index, m4u_slave_id, F_INT_MAU(m4u_slave_id, 3)); __mau_dump_status(m4u_index, m4u_slave_id, 3); } m4u_clear_intr(m4u_index); m4u_isr_record(); } return IRQ_HANDLED; } struct m4u_domain *m4u_get_domain_by_port(M4U_PORT_ID port) { return &gM4uDomain; } struct m4u_domain *m4u_get_domain_by_id(int id) { return &gM4uDomain; } int m4u_get_domain_nr(void) { return 1; } int m4u_reg_init(struct m4u_domain *m4u_domain, unsigned long ProtectPA, int m4u_id) { unsigned int regval; int i; M4UMSG("m4u_reg_init, ProtectPA = 0x%lx\n", ProtectPA); /* m4u clock is in infra domain, we never close this clock. */ m4u_clock_on(); /* ============================================= */ /* SMI registers */ /* ============================================= */ /*bus selection:*/ /* control which m4u_slave each larb routes to.*/ /* this register is in smi_common domain*/ /* Threre is only one AXI channel in K2, so don't need to set*/ /* ========================================= */ /* larb init */ /* ========================================= */ if (m4u_id == 0) { struct device_node *node = NULL; for (i = 0; i < SMI_LARB_NR; i++) { node = of_find_compatible_node(NULL, NULL, gM4U_SMILARB[i]); if (node == NULL) { M4UMSG("init larb %d error!!!!!\n", i); continue; } gLarbBaseAddr[i] = (unsigned long)of_iomap(node, 0); /* set mm engine domain to 0x4 (default value) */ M4UINFO("init larb %d, 0x%lx\n", i, gLarbBaseAddr[i]); } } /* ========================================= */ /* perisys init */ /* ========================================= */ if (m4u_id == 1) { struct device_node *node = NULL; node = of_find_compatible_node(NULL, NULL, "mediatek,pericfg"); gPericfgBaseAddr = (unsigned long)of_iomap(node, 0); M4UINFO("gPericfgBaseAddr: 0x%lx\n", gPericfgBaseAddr); } /* ============================================= */ /* m4u registers */ /* ============================================= */ M4UMSG("m4u hw init id = %d, base address: 0x%lx, pgd_pa: 0x%x\n", m4u_id, gM4UBaseAddr[m4u_id], (unsigned int)m4u_domain->pgd_pa); { M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMUg_PT_BASE, (unsigned int)m4u_domain->pgd_pa); M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMUg_PT_BASE_SEC, (unsigned int)m4u_domain->pgd_pa); regval = M4U_ReadReg32(gM4UBaseAddr[m4u_id], REG_MMU_CTRL_REG); if (m4u_id == 0) { /* mm_iommu */ regval = regval | F_MMU_CTRL_PFH_DIS(0) | F_MMU_CTRL_MONITOR_EN(0) | F_MMU_CTRL_MONITOR_CLR(0) | F_MMU_CTRL_TF_PROTECT_SEL(2) | F_MMU_CTRL_INT_HANG_EN(0); } M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_CTRL_REG, regval); M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_MMU_COHERENCE_EN, 0x3); M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_MMU_TABLE_WALK_DIS, 0); /* enable all interrupts */ m4u_enable_intr(m4u_id); /* set translation fault proctection buffer address */ M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_IVRP_PADDR, (unsigned int)F_MMU_IVRP_PA_SET(ProtectPA)); /* enable DCM */ M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMU_DCM_DIS, 0); m4u_invalid_tlb_all(m4u_id); } /* special settings for mmu0 (multimedia iommu) */ if (m4u_id == 0) { unsigned long m4u_base = gM4UBaseAddr[0]; /* 2 disable in-order-write */ #ifdef CONFIG_MTK_SMI_EXT M4U_WriteReg32(m4u_base, REG_MMU_IN_ORDER_WR_EN, 0); #endif M4UMSG("m4u inorder setting: 0x%x\n", M4U_ReadReg32(m4u_base, REG_MMU_IN_ORDER_WR_EN)); /* 3 non-standard AXI mode */ M4U_WriteReg32(m4u_base, REG_MMU_STANDARD_AXI_MODE, 0); /* 4 write command throttling mode */ m4uHw_set_field_by_mask(m4u_base, REG_MMU_WR_LEN, F_MMU_WR_THROT_DIS, 0); m4uHw_set_field_by_mask(m4u_base, REG_MMU_DUMMY, F_REG_MMU_IDLE_ENABLE, 0); } return 0; } int m4u_domain_init(struct m4u_device *m4u_dev, void *priv_reserve) { M4UINFO("m4u_domain_init\n"); memset(&gM4uDomain, 0, sizeof(gM4uDomain)); gM4uDomain.pgsize_bitmap = M4U_PGSIZES; mutex_init(&gM4uDomain.pgtable_mutex); m4u_pgtable_init(m4u_dev, &gM4uDomain); m4u_mvaGraph_init(priv_reserve); return 0; } int m4u_reset(int m4u_id) { m4u_invalid_tlb_all(m4u_id); m4u_clear_intr(m4u_id); return 0; } int m4u_hw_init(struct m4u_device *m4u_dev, int m4u_id) { unsigned long pProtectVA; phys_addr_t ProtectPA; #ifdef M4U_4GBDRAM gM4U_4G_DRAM_Mode = enable_4G(); #endif M4UMSG("4G DRAM Mode is: %d\n", gM4U_4G_DRAM_Mode); gM4UBaseAddr[m4u_id] = m4u_dev->m4u_base[m4u_id]; pProtectVA = (unsigned long)kmalloc(TF_PROTECT_BUFFER_SIZE * 2, GFP_KERNEL | __GFP_ZERO); if ((void *)pProtectVA == NULL) { M4UMSG("Physical memory not available.\n"); return -1; } pProtectVA = (pProtectVA + (TF_PROTECT_BUFFER_SIZE - 1)) & (~(TF_PROTECT_BUFFER_SIZE - 1)); ProtectPA = virt_to_phys((void *)pProtectVA); if (ProtectPA & (TF_PROTECT_BUFFER_SIZE - 1)) { M4UMSG("protect buffer (0x%lx) not align.\n", (unsigned long)ProtectPA); return -1; } M4UMSG("protect memory va=0x%lx, pa=0x%lx.\n", pProtectVA, (unsigned long)ProtectPA); pM4URegBackUp = kmalloc(M4U_REG_BACKUP_SIZE, GFP_KERNEL | __GFP_ZERO); if (pM4URegBackUp == NULL) { M4UMSG("Physical memory not available size=%d.\n", (int)M4U_REG_BACKUP_SIZE); return -1; } spin_lock_init(&gM4u_reg_lock); m4u_reg_init(&gM4uDomain, ProtectPA, m4u_id); m4u_isr_pause_timer_init(); m4u_monitor_start(m4u_id); mau_start_monitor(0, 0, 0, 1, 1, 0, 0, 0x0, 0xfffff, 0xffffffff, 0xffffffff); mau_start_monitor(0, 0, 1, 0, 1, 0, 0, 0x0, 0xfffff, 0xffffffff, 0xffffffff); /* mau_start_monitor(0, 0, 1, 1, 1, 0, 0, 0x0, 0x1000, 0xffffffff, * 0xffffffff); */ /* mau_start_monitor(0, 0, 2, 0, 0, 0, 0, 0x0, 0x1000, 0xffffffff, * 0xffffffff); */ /* config MDP related port default use M4U */ if (m4u_id == 0) { struct m4u_port_config_struct port; port.Direction = 0; port.Distance = 1; port.domain = 0; port.Security = 0; port.Virtuality = 1; port.ePortID = M4U_PORT_MDP_RDMA0; m4u_config_port(&port); port.ePortID = M4U_PORT_MDP_WROT0; m4u_config_port(&port); port.ePortID = M4U_PORT_MDP_WROT0; m4u_config_port(&port); } if (request_irq(m4u_dev->irq_num[m4u_id], MTK_M4U_isr, IRQF_TRIGGER_NONE, "m4u", NULL)) { M4UERR("request M4U%d IRQ line failed\n", m4u_id); return -ENODEV; } M4UMSG("request_irq, irq_num=%d\n", m4u_dev->irq_num[m4u_id]); return 0; } int m4u_hw_deinit(struct m4u_device *m4u_dev, int m4u_id) { #if 1 free_irq(m4u_dev->irq_num[m4u_id], NULL); #else free_irq(MM_IOMMU_IRQ_B_ID, NULL); free_irq(PERISYS_IOMMU_IRQ_B_ID, NULL); #endif return 0; } int m4u_dump_reg_for_smi_hang_issue(void) { /*NOTES: m4u_monitor_start() must be called before using m4u */ /*please check m4u_hw_init() to ensure that */ M4UMSG("====== dump m4u reg start =======>\n"); if (gM4UBaseAddr[0] == 0) { M4UMSG("gM4UBaseAddr[0] is NULL\n"); return 0; } M4UMSG("0x44 = 0x%x\n", M4U_ReadReg32(gM4UBaseAddr[0], 0x44)); m4u_dump_reg(0, 0, 400); m4u_print_perf_counter(0, 0, "m4u"); m4u_dump_rs_info(0, 0); return 0; }