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kernel_samsung_a34x-permissive/drivers/misc/mediatek/m4u/mt6765/m4u_hw.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2020 MediaTek Inc.
*/
#include <linux/slab.h>
#include <linux/interrupt.h>
#include "m4u_priv.h"
#include "m4u_hw.h"
#include "m4u_platform.h"
#include <linux/kmemleak.h>
#include <linux/of.h>
#include <linux/of_address.h>
#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 struct m4u_range_des gM4u0_seq[M4U0_SEQ_NR] = {{0}}; */
/* static struct m4u_range_des gM4u1_seq[M4U1_SEQ_NR] = {{0}}; */
static struct m4u_range_des *gM4USeq[] = { NULL, NULL };
/*static struct m4u_mau_status gM4u0_mau[M4U0_MAU_NR] = { {0} };*/
/*static unsigned int gMAU_candidate_id = M4U0_MAU_NR - 1;*/
static DEFINE_MUTEX(gM4u_seq_mutex);
static struct m4u_prog_dist gM4U0_prog_pfh[M4U0_PROG_PFH_NR] = { {0} };
/* static struct m4u_prog_dist gM4u1_prog_pfh[M4U0_PROG_PFH_NR] = {{0}}; */
static struct m4u_prog_dist *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 {
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;
m4u_mid_info("m4u dump RS information =====>\n");
m4u_mid_info("id mva valid port-id pa pte larb w/r other-status\n");
for (i = 0; i < MMU_TOTAL_RS_NR; i++) {
m4u_mid_info("%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]));
}
m4u_mid_info("m4u dump RS information done =====>\n");
return 0;
}
static 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];
unsigned int st[MMU_TOTAL_RS_NR], pte[MMU_TOTAL_RS_NR];
for (i = 0; i < MMU_TOTAL_RS_NR; i++) {
va[i] = M4U_ReadReg32(m4u_base,
REG_MMU_RSx_VA(m4u_slave_id, i));
pa[i] = M4U_ReadReg32(m4u_base,
REG_MMU_RSx_PA(m4u_slave_id, i));
st[i] = M4U_ReadReg32(m4u_base,
REG_MMU_RSx_ST(m4u_slave_id, i));
pte[i] = M4U_ReadReg32(m4u_base,
REG_MMU_RSx_2ND_BASE(m4u_slave_id, i));
}
m4u_mid_info("m4u dump RS information index: %d=====>\n", m4u_slave_id);
__m4u_dump_rs_info(va, pa, st, pte);
m4u_mid_info("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(int m4u_id, int m4u_slave_id, 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;
m4u_high_info("%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;
}
/* notes: 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)) {
m4u_high_info("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);
m4u_high_info("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);
m4u_high_info("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
m4u_mid_info("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;
unsigned long m4u_base = gM4UBaseAddr[m4u_index];
for (i = start; i < end; i += 16) {
m4u_info("0x%x=0x%x, 0x%x=0x%x, 0x%x=0x%x, 0x%x=0x%x\n",
(i + 4 * 0), M4U_ReadReg32(m4u_base, i + 4 * 0),
(i + 4 * 1), M4U_ReadReg32(m4u_base, i + 4 * 1),
(i + 4 * 2), M4U_ReadReg32(m4u_base, i + 4 * 2),
(i + 4 * 3), M4U_ReadReg32(m4u_base, i + 4 * 3));
}
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, struct iommu_tlb *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, struct iommu_tlb *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)
{
struct iommu_tlb 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)
{
struct iommu_tlb 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;
struct iommu_tlb tlb;
m4u_high_info("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);
m4u_high_info("%d:0x%x:0x%x ", i, tlb.tag, tlb.desc);
if ((i + 1) % 8 == 0)
m4u_high_info("===\n");
}
return 0;
}
int m4u_dump_invalid_main_tlb(int m4u_id, int m4u_slave_id)
{
unsigned int i = 0;
struct iommu_tlb tlb;
m4u_err("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))
m4u_high_info("%d:0x%x:0x%x\n", i, tlb.tag, tlb.desc);
}
m4u_high_info("\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;
m4u_high_info("dump pfh_tlb: m4u %d ====>\n", m4u_id);
for (way = 0; way < way_nr; way++) {
for (set = 0; set < set_nr; set++) {
int page;
struct iommu_tlb 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);
m4u_high_info("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);
m4u_high_info("0x%x:", tlb.desc);
}
m4u_high_info("\n");
}
}
return result;
}
int m4u_get_pfh_tlb_all(int m4u_id, struct iommu_pfh_tlb *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;
struct iommu_tlb 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;
}
unsigned int
m4u_get_victim_tlb(int m4u_id, int page, int way, struct iommu_tlb *pTlb)
{
unsigned int regValue = 0;
unsigned long m4u_base = gM4UBaseAddr[m4u_id];
regValue = F_READ_ENTRY_EN
| F_READ_ENTRY_VICT_TLB_SEL
| 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;
}
static unsigned int
imu_victim_tag_to_va(int mmu, int way, unsigned int tag)
{
unsigned int tmp;
if (tag & F_PFH_TAG_LAYER_BIT)
return F_PFH_TAG_VA_GET(mmu, tag);
tmp = F_PFH_TAG_VA_GET(mmu, tag);
tmp &= F_MMU_PFH_TAG_VA_LAYER0_MSK(mmu);
return tmp;
}
int m4u_dump_victim_tlb(int m4u_id)
{
unsigned int regval;
unsigned long m4u_base = gM4UBaseAddr[m4u_id];
int result = 0;
int way_nr, way;
int valid;
way_nr = MMU_WAY_NR;
m4u_high_info("dump victim_tlb: m4u %d ====>\n", m4u_id);
for (way = 0; way < way_nr; way++) {
int page;
struct iommu_tlb tlb;
regval = M4U_ReadReg32(m4u_base, REG_MMU_VICT_VLD);
valid = !!(regval & F_MMU_VICT_VLD_BIT(way));
m4u_get_victim_tlb(m4u_id, 0, way, &tlb);
m4u_high_info("way(%d), v(%d),:", way, valid);
for (page = 0; page < MMU_PAGE_PER_LINE; page++) {
m4u_get_victim_tlb(m4u_id, page, way, &tlb);
m4u_high_info("va(0x%x) lay(%d) Bit32(%d) sec(%d) pfh(%d), 0x%x: 0x%x",
imu_victim_tag_to_va(m4u_id, 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),
tlb.tag, tlb.desc);
}
}
return result;
}
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))) {
m4u_err("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)) {
m4u_err("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;
unsigned int unit_sz = 0;
/* /> 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 && !!large)
/* layer = 1 large = 1 */
unit_sz = MMU_LARGE_PAGE_SIZE;
else if (!!layer && !large)
/* layer = 1 large = 0 */
unit_sz = PAGE_SIZE;
else if (!layer && !!large)
/* layer = 0 large = 1 */
unit_sz = MMU_SUPERSECTION_SIZE;
else
/* layer = 0 large = 0 */
unit_sz = MMU_SECTION_SIZE;
tag_e = tag_s + unit_sz * 8 - 1;
if (!((tag_e < sa) || (tag_s > ea))) {
m4u_err("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)) {
m4u_err("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)
{
return 0;
}
char *smi_clk_name[] = {
"m4u_smi_larb0", "m4u_smi_larb1", "m4u_smi_larb2", "m4u_smi_larb3"
};
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)
m4u_err("%s error: larb %d\n", __func__, larb);
#endif
return 0;
}
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)
m4u_err("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;
struct m4u_prog_dist *pProgPfh;
larb = m4u_port_2_larb_id(port);
larb_port = m4u_port_2_larb_port(port);
if (unlikely(larb >= SMI_LARB_NR)) {
m4u_err("%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)) {
m4u_err("m4u warning: cannot set two direction or difference distance in the same port.\n");
m4u_err("original value: module = %s, mm_id = %d, dir = %d, dist = %d, sel = %d.\n",
m4u_get_port_name(port), mm_id,
dir, dist, sel);
m4u_err("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) {
m4u_mid_info("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];
struct m4u_prog_dist *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))
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);
struct m4u_range_des *pSeq =
gM4USeq[m4u_index] + M4U_SEQ_NUM(m4u_index) * m4u_slave_id;
m4u_mid_info("%s: module:%s, MVAStart:0x%x, MVAEnd:0x%x\n",
__func__, m4u_get_port_name(port), MVAStart, MVAEnd);
if (MVAEnd - MVAStart < PAGE_SIZE) {
m4u_mid_info("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) {
/* no overlap */
if (MVAEnd < pSeq[i].MVAStart ||
MVAStart > pSeq[i].MVAEnd)
continue;
else {
m4u_high_info("insert range overlap![%s]: larb=%d,module=%s, mva_start=0x%x, mva_end=0x%x\n",
current->comm,
m4u_port_2_larb_id(port),
m4u_get_port_name(port),
MVAStart, MVAEnd);
m4u_high_info("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) {
m4u_mid_info("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];
struct m4u_range_des *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;
}
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)
m4u_high_info("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)) {
m4u_err("%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));
#ifdef M4U_GZ_SERVICE_ENABLE
if (virt == 1 && sec == 0)
m4uHw_set_field_by_mask(
larb_base,
SMI_LARB_NON_SEC_CONx(
larb_port),
F_SMI_BIT32,
0);
#endif
/* debug use */
mmu_en = m4uHw_get_field_by_mask(larb_base,
SMI_LARB_NON_SEC_CONx(larb_port), 0x1);
if (!!(mmu_en) != virt) {
m4u_high_info("m4u_config_port error, port=%s, Virtuality=%d, mmu_en=%x (%x, %x)\n",
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 */
m4u_high_info("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;
#if !defined(M4U_GZ_SERVICE_ENABLE) && defined(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);
#if !defined(M4U_GZ_SERVICE_ENABLE) && defined(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)));
*/
m4u_high_info("%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 (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,
int port, int m4u_en, int secure)
{
if (port >= M4U_PORT_NR || port < 0) {
m4u_err("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)
{
unsigned 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} };
#if !defined(M4U_GZ_SERVICE_ENABLE) && defined(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)) {
m4u_err("%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;
#if !defined(M4U_GZ_SERVICE_ENABLE) && defined(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);
#if !defined(M4U_GZ_SERVICE_ENABLE) && defined(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)) {
m4u_err("%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);
}
#ifdef M4U_GZ_SERVICE_ENABLE
if (regNew[larb][larb_port] == 1
&& (port_array->ports[port]
& M4U_PORT_ATTR_SEC) == 0) {
spin_lock(&gM4u_reg_lock);
m4uHw_set_field_by_mask(gLarbBaseAddr[larb],
SMI_LARB_NON_SEC_CONx(larb_port),
F_SMI_BIT32,
0);
spin_unlock(&gM4u_reg_lock);
}
#endif
}
}
/* 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, struct 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 count */
pM4U_perf_count->pfh_cnt =
M4U_ReadReg32(m4u_base, REG_MMU_PF_CNT);
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];
m4u_info("====%s: %d======\n", __func__, 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)
{
struct m4u_perf_count cnt;
int m4u_index = m4u_id;
unsigned long m4u_base = gM4UBaseAddr[m4u_index];
m4u_info("====%s: %d======\n", __func__, 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 */
m4u_mid_info("[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)
{
struct m4u_perf_count cnt;
m4u_info("====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);
m4u_info("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_SIZE (100*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) */
real_size = (pReg - pM4URegBackUp);
if (real_size > M4U_REG_BACKUP_SIZE)
m4u_aee_err("m4u_reg overflow! %d>%d\n",
real_size, (int)M4U_REG_BACKUP_SIZE);
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_err("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) {
m4u_err("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) {
m4u_err("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)
{
m4u_err("%s, refcnt: %d, %s\n", __func__, 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)
{
m4u_err("%s, refcnt: %d, %s\n", __func__, 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;
unsigned int m4u_index, larb, larb_port;
unsigned long larb_base;
M4U_PRINT_SEQ(seq, "%s ========>\n", __func__);
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_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_SEQ(seq, "%s(%d),",
m4u_get_port_name(port),
!!mmu_en);
}
M4U_PRINT_SEQ(seq, "\n");
}
void m4u_print_port_status_ext(struct seq_file *seq, int tf_port)
{
int mmu_en = 0;
unsigned int m4u_index, larb, l_port;
unsigned long larb_base;
M4U_PRINT_SEQ(seq, "port_status_ext larb %d========>\n", tf_port);
m4u_index = m4u_port_2_m4u_id(tf_port);
larb = m4u_port_2_larb_id(tf_port);
if (unlikely(larb >= SMI_LARB_NR)) {
M4U_PRINT_SEQ(seq, "%s %d err port[%d]\n",
__func__, __LINE__, tf_port);
return;
}
if (m4u_index == 0) {
l_port = m4u_port_2_larb_port(tf_port);
larb_base = gLarbBaseAddr[larb];
mmu_en = m4uHw_get_field_by_mask(larb_base,
SMI_LARB_NON_SEC_CONx(l_port),
F_SMI_NON_SEC_MMU_EN(1));
}
M4U_PRINT_SEQ(seq, "%s(%d)\n", m4u_get_port_name(tf_port), !!mmu_en);
}
int m4u_register_reclaim_callback(int port,
m4u_reclaim_mva_callback_t *fn, void *data)
{
if (port >= M4U_PORT_UNKNOWN || port < M4U_PORT_DISP_OVL0) {
m4u_err("%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 || port < M4U_PORT_DISP_OVL0) {
m4u_err("%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 || port < M4U_PORT_DISP_OVL0) {
m4u_err("%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 || port < M4U_PORT_DISP_OVL0) {
m4u_err("%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) {
m4u_err("%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)
{
m4u_err("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);
m4u_isr_pause_timer.expires = jiffies + delay * HZ;
add_timer(&m4u_isr_pause_timer);
m4u_err("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) \
m4u_err("iommu%d_%d " #id "(0x%x) int happens!!\n", mmu, mmu_2nd_id, id)
#define m4u_translation_log_format \
"\nCRDISPATCH_KEY:M4U_%s\ntranslation fault:port=%s,mva=0x%x,pa=0x%x\n"
struct m4u_domain *m4u_get_domain_by_port(M4U_PORT_ID port);
void dump_pgd_info(unsigned int mva)
{
unsigned long pa;
m4u_dump_pgtable(m4u_get_domain_by_port(0), NULL);
pa = m4u_mva_to_pa(NULL, 0, mva);
m4u_err("(1) mva:0x%x pa:0x%lx\n", mva, pa);
}
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 {
m4u_err("%s: Invalid irq number %d\n", __func__, irq);
return -1;
}
{
/* L2 interrupt */
unsigned int regval = M4U_ReadReg32(m4u_base,
REG_MMU_L2_FAULT_ST);
m4u_err("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_err("L2 table walk err: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_INVALID_DONE)
MMU_INT_REPORT(m4u_index, 0,
F_INT_L2_INVALID_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;
int larb_index = 0;
unsigned int regval;
int layer, write, m4u_port;
unsigned int fault_mva, fault_pa;
m4u_err("m4u main interrupt happened: sta=0x%x\n", IntrSrc);
for (larb_index = 0; larb_index < SMI_LARB_NR; larb_index++) {
m4u_err("larb%d: NON_SEC_CON:0x%x\n", larb_index,
M4U_ReadReg32(gLarbBaseAddr[larb_index],
SMI_LARB_NON_SEC_CONx(larb_index)));
}
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 {
m4u_err("%s %d: interrupt error: status = 0x%x\n",
__func__, __LINE__, 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);
larb_index = m4u_port_2_larb_id(m4u_port);
/* dump something quickly */
///m4u_dump_rs_info(m4u_index, 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));
m4u_err("fault: port=%s, larb=%d, mva=0x%x, pa=0x%x, layer=%d, wr=%d, 0x%x\n",
m4u_get_port_name(m4u_port), larb_index,
fault_mva, fault_pa, layer, write, regval);
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) {
m4u_err("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 ((m4u_port < gM4u_port_num) &&
(m4u_port >= M4U_PORT_DISP_OVL0) &&
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_ext(NULL, m4u_port);
/* call user's callback */
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_err("\nCRDISPATCH_KEY:M4U_%s\ntranslation fault:mva=0x%x, pa=0x%x\n",
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_INV_PHYADDR_FAULT(m4u_slave_id)) {
if (!(IntrSrc &
F_INT_TRANSLATION_FAULT(m4u_slave_id))) {
MMU_INT_REPORT(m4u_index, m4u_slave_id,
F_INT_INV_PHYADDR_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;
m4u_err("%s, ProtectPA = 0x%lx\n", __func__, 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)
m4u_info("init larb %d error\n", i);
gLarbBaseAddr[i] = (unsigned long)of_iomap(node, 0);
m4u_info("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);
m4u_info("gPericfgBaseAddr: 0x%lx\n", gPericfgBaseAddr);
}
/* ============================================= */
/* m4u registers */
/* ============================================= */
m4u_err("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
m4u_err("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(3),
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)
{
m4u_info("%s\n", __func__);
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
m4u_err("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)
return -ENOMEM;
else
kmemleak_ignore((void *)pProtectVA); //ignored by kmemleak tool
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)) {
m4u_err("protect buffer (0x%lx) not align.\n",
(unsigned long)ProtectPA);
return -1;
}
m4u_err("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)
return -ENOMEM;
spin_lock_init(&gM4u_reg_lock);
m4u_reg_init(&gM4uDomain, ProtectPA, m4u_id);
if (request_irq(m4u_dev->irq_num[m4u_id],
MTK_M4U_isr, IRQF_TRIGGER_NONE, "m4u", NULL)) {
m4u_err("request M4U%d IRQ line failed\n", m4u_id);
return -ENODEV;
}
m4u_err("request_irq, irq_num=%d\n", m4u_dev->irq_num[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, 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);
}
m4u_err("config port, done\n");
return 0;
}
int m4u_hw_deinit(struct m4u_device *m4u_dev, int m4u_id)
{
free_irq(m4u_dev->irq_num[m4u_id], NULL);
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 */
m4u_err("====== dump m4u reg start =======>\n");
if (gM4UBaseAddr[0] == 0) {
m4u_err("gM4UBaseAddr[0] is NULL\n");
return 0;
}
m4u_err("0x44 = 0x%x\n", M4U_ReadReg32(gM4UBaseAddr[0], 0x44));
m4u_dump_reg(0, 0, 400);
m4u_dump_reg(0, 0x500, 0x5fc);
m4u_dump_reg(0, 0xb00, 0xb0c);
m4u_dump_reg(0, 0xc00, 0xc0c);
m4u_dump_reg(0, 0x380, 0x3fc);
m4u_dump_reg(0, 0x680, 0x6fc);
m4u_print_perf_counter(0, 0, "m4u");
m4u_dump_rs_info(0, 0);
m4u_err("====== dump m4u reg end =======>\n");
return 0;
}
Reference in a new issue Copy permalink