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kernel_samsung_a34x-permissive/drivers/misc/mediatek/m4u/mt6768/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) 2019 MediaTek Inc.
*/
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/sched/clock.h>
#include "m4u_priv.h"
#include "m4u_hw.h"
#include "m4u_platform.h"
#include <linux/of.h>
#include <linux/of_address.h>
#include <mt-plat/mtk_lpae.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];
#if (TOTAL_M4U_NUM > 1)
static unsigned long gPericfgBaseAddr;
#endif
static unsigned int gM4UTagCount[] = { 64 };
#ifdef M4U_MMU_SLAVE_SWITCH
static unsigned long gComBaseAddr;
#endif
/* static M4U_RANGE_DES_T gM4u0_seq[M4U0_SEQ_NR] = {{0}}; */
/* static M4U_RANGE_DES_T 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 * M4U_SLAVE_NUM(0)] = { {0} };
/* static M4U_PROG_DIST_T gM4u1_prog_pfh[
* M4U1_PROG_PFH_NR * M4U_SLAVE_NUM(1)] = {{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;
unsigned int g_translation_fault_debug;
static spinlock_t gM4u_reg_lock;
static DEFINE_MUTEX(m4u_larb0_mutex);
int m4u_invalid_tlb(unsigned int m4u_id, int L2_en,
int isInvAll, unsigned int mva_start, unsigned int mva_end)
{
unsigned int reg = 0;
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
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(unsigned int m4u_id)
{
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return;
}
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 = 0;
/* 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 = 0;
M4ULOG_MID("m4u dump RS information =====>\n");
M4ULOG_MID(
"id mva valid larb/port pa pte w/r other-status\n");
for (i = 0; i < MMU_TOTAL_RS_NR; i++) {
M4ULOG_MID(
"%d: 0x%8x %5d %d/%d 0x%8x 0x%8x %d 0x%3x\n",
i,
F_MMU_RSx_VA_GET(va[i]),
F_MMU_RSx_VA_VALID(va[i]),
F_MMU_RSx_ST_LARB(st[i]),
F_MMU_RSx_ST_PORT(st[i]),
pa[i], pte[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(unsigned int m4u_index, int m4u_slave_id)
{
unsigned long m4u_base = 0;
int i = 0;
unsigned int va[MMU_TOTAL_RS_NR];
unsigned int pa[MMU_TOTAL_RS_NR];
unsigned int st[MMU_TOTAL_RS_NR];
unsigned int pte[MMU_TOTAL_RS_NR];
if (unlikely(m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_index))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_index, m4u_slave_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
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)
{
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return;
}
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)
{
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return;
}
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)
{
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return;
}
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 = 0;
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;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
mau_set >= MAU_NR_PER_M4U_SLAVE ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d, mau=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id, mau_set);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
M4ULOG_HIGH(
"%s [%d], s=0x%x, e=0x%x, w/r:%d, port:0x%x, larb: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: 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)
{
unsigned int m4u_id = cfg->m4u_id;
unsigned int m4u_slave_id = cfg->m4u_slave_id;
unsigned int mau_set = cfg->mau_set;
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
mau_set >= MAU_NR_PER_M4U_SLAVE ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d, mau=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id, mau_set);
return -1;
}
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(unsigned int m4u_id,
int m4u_slave_id, unsigned 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;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
mau >= MAU_NR_PER_M4U_SLAVE ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d, mau=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id, mau);
return -1;
}
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(unsigned int m4u_id, unsigned int m4u_slave_id)
{
int i = 0;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id);
return -1;
}
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 = 0;
unsigned long m4u_base;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
for (i = start; i < end; i += 16) {
M4UINFO("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;
}
/*
int m4u_dump_reg(int m4u_index, unsigned int start)
{
//return __m4u_dump_reg(0, 0, 400);
return 0;
}*/
unsigned int m4u_get_main_descriptor(unsigned int m4u_id,
unsigned int m4u_slave_id, int idx)
{
unsigned int regValue = 0;
unsigned long m4u_base = gM4UBaseAddr[m4u_id];
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id);
return 0;
}
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(unsigned int m4u_id,
unsigned int m4u_slave_id, int idx)
{
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id);
return 0;
}
m4u_base = gM4UBaseAddr[m4u_id];
return M4U_ReadReg32(m4u_base, REG_MMU_MAIN_TAG(m4u_slave_id, idx));
}
void m4u_get_main_tlb(unsigned int m4u_id,
unsigned int m4u_slave_id, int idx, struct mmu_tlb *pTlb)
{
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id);
return;
}
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(unsigned int m4u_id,
int set, int page, int way, struct mmu_tlb *pTlb)
{
unsigned int regValue = 0;
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return 0;
}
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(unsigned int m4u_id, int set, int page, int way)
{
struct mmu_tlb tlb;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return 0;
}
m4u_get_pfh_tlb(m4u_id, set, page, way, &tlb);
return tlb.tag;
}
unsigned int m4u_get_pfh_descriptor(unsigned int m4u_id,
int set, int page, int way)
{
struct mmu_tlb tlb;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return 0;
}
m4u_get_pfh_tlb(m4u_id, set, page, way, &tlb);
return tlb.desc;
}
int m4u_dump_main_tlb(unsigned int m4u_id, int m4u_slave_id)
{
/* M4U related */
unsigned int i = 0;
struct mmu_tlb tlb;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id);
return -1;
}
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(unsigned int m4u_id, int m4u_slave_id)
{
unsigned int i = 0;
struct mmu_tlb tlb;
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_id))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_id, m4u_slave_id);
return 0;
}
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(unsigned int m4u_id)
{
unsigned int regval;
unsigned long m4u_base;
int result = 0;
int set_nr, way_nr, set, way;
int valid;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
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;
struct mmu_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);
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(unsigned int m4u_id, struct mmu_pfh_tlb *pfh_buf)
{
unsigned int regval;
unsigned long m4u_base;
int set_nr, way_nr, set, way;
int valid;
int pfh_id = 0;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
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 mmu_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(unsigned int m4u_id,
int page, int way, struct mmu_tlb *pTlb)
{
unsigned int regValue = 0;
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
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(unsigned int m4u_id)
{
unsigned int regval;
int result = 0;
int way_nr, way;
int valid;
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
way_nr = MMU_WAY_NR;
M4ULOG_HIGH("dump victim_tlb: m4u %d ====>\n", m4u_id);
for (way = 0; way < way_nr; way++) {
int page;
struct mmu_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);
M4ULOG_HIGH
("way(%d), v(%d),:", way, valid);
for (page = 0; page < MMU_PAGE_PER_LINE; page++) {
m4u_get_victim_tlb(m4u_id, page, way, &tlb);
M4ULOG_HIGH(
"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 = 0;
unsigned int regval;
if (unlikely(m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_index))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_index, m4u_slave_id);
return -1;
}
/* /> 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(unsigned int m4u_index,
unsigned int MVAStart, unsigned int MVAEnd)
{
unsigned int i = 0;
unsigned int regval;
int result = 0;
int set_nr, way_nr, set, way;
unsigned long m4u_base;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
/* /> 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(unsigned int m4u_index, int m4u_slave_id)
{
unsigned int i = 0;
unsigned int regval;
if (unlikely(m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_SLAVE_NUM(m4u_index))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, m4u_index, m4u_slave_id);
return -1;
}
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(unsigned int m4u_index)
{
unsigned int regval;
int set_nr, way_nr, set, way;
unsigned long m4u_base;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
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(unsigned int m4u_index)
{
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return -1;
}
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[SMI_LARB_NR] = {
"m4u_smi_larb0", "m4u_smi_larb1",
"m4u_smi_larb2", "m4u_smi_larb3",
"m4u_smi_larb4"
};
int larb_clock_on(int larb, bool config_mtcmos)
{
#ifdef CONFIG_MTK_SMI_EXT
int ret = -1;
if ((unsigned int)larb < SMI_LARB_NR)
ret = smi_bus_prepare_enable(larb, smi_clk_name[larb]);
if (ret != 0)
M4UMSG("%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 ((unsigned int)larb < SMI_LARB_NR)
ret = smi_bus_disable_unprepare(larb, smi_clk_name[larb]);
if (ret != 0)
M4UMSG("%s error: larb %d\n", __func__, larb);
#endif
return 0;
}
int m4u_enable_prog_dist_by_id(unsigned int port, int id)
{
unsigned long m4u_base;
unsigned int m4u_id = m4u_port_2_m4u_id(port);
unsigned int m4u_slave_id = m4u_port_2_m4u_slave_id(port);
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_MAX_SLAVE)) {
M4UMSG("%s, invalid port=%d, slave=%d, m4u_id=%d\n",
__func__, port, m4u_slave_id, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
spin_lock(&gM4u_reg_lock);
m4uHw_set_field_by_mask(m4u_base,
REG_MMU_PROG_DIST(id, m4u_slave_id), F_PF_EN(1), 1);
spin_unlock(&gM4u_reg_lock);
return 0;
}
int m4u_disable_prog_dist_by_id(unsigned int port, int id)
{
unsigned long m4u_base;
unsigned int m4u_id = m4u_port_2_m4u_id(port);
unsigned int m4u_slave_id = m4u_port_2_m4u_slave_id(port);
if (unlikely(m4u_id >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_MAX_SLAVE)) {
M4UMSG("%s, invalid port=%d, slave=%d, m4u_id=%d\n",
__func__, port, m4u_slave_id, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
spin_lock(&gM4u_reg_lock);
m4uHw_set_field_by_mask(m4u_base,
REG_MMU_PROG_DIST(id, m4u_slave_id), F_PF_EN(1), 0);
spin_unlock(&gM4u_reg_lock);
return 0;
}
int m4u_config_prog_dist(unsigned int port,
int dir, int dist, int en, unsigned int mm_id, int sel)
{
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);
unsigned int larb = m4u_port_2_larb_id(port);
unsigned int larb_port = m4u_port_2_larb_port(port);
unsigned long m4u_base;
unsigned long larb_base;
struct M4U_PROG_DIST *pProgPfh;
if (unlikely(m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_MAX_SLAVE ||
larb >= SMI_LARB_NR)) {
M4UMSG("%s, invalid port=%d, larb=%d, m4u_id=%d\n",
__func__, port, larb, m4u_index);
return -1;
}
larb_base = gLarbBaseAddr[larb];
m4u_base = gM4UBaseAddr[m4u_index];
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 &&
(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, m4u_slave_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, m4u_slave_id), F_PF_DIR(1),
F_PF_DIR(!!(dir)));
m4uHw_set_field(m4u_base, REG_MMU_PROG_DIST(free_id, m4u_slave_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, m4u_slave_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, m4u_slave_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 = 0;
unsigned int m4u_index = m4u_port_2_m4u_id(port);
unsigned int m4u_slave_id = m4u_port_2_m4u_slave_id(port);
unsigned long m4u_base;
struct M4U_PROG_DIST *pProgPfh;
if (unlikely(m4u_index == 1 ||
m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_MAX_SLAVE)) {
M4UMSG("%s, invalid port=%d, m4u=%d\n",
__func__, port, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
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, m4u_slave_id), 0x800);
spin_unlock(&gM4u_reg_lock);
return 0;
}
int m4u_insert_seq_range(unsigned int 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;
if (unlikely(m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_MAX_SLAVE)) {
M4UMSG("%s, invalid port=%d, m4u=%d\n",
__func__, port, m4u_index);
return -1;
}
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) {
/* no overlap */
if (MVAEnd < pSeq[i].MVAStart ||
MVAStart > pSeq[i].MVAEnd)
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(unsigned int port, int seq_id)
{
unsigned int m4u_index = m4u_port_2_m4u_id(port);
unsigned int m4u_slave_id = m4u_port_2_m4u_slave_id(port);
unsigned long m4u_base;
struct M4U_RANGE_DES *pSeq;
int ret = 0;
if (unlikely(m4u_index >= TOTAL_M4U_NUM ||
m4u_slave_id >= M4U_MAX_SLAVE)) {
M4UMSG("%s, invalid port=%d, m4u=%d\n",
__func__, port, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
pSeq = gM4USeq[m4u_index] +
M4U_SEQ_NUM(m4u_index) * m4u_slave_id;
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)
{
unsigned 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 (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4UMSG("%s, invalid port=%d, m4u=%d\n",
__func__, port, m4u_index);
return -1;
}
#ifndef CONFIG_FPGA_EARLY_PORTING
if (virt == 0 || sec == 1)
#endif
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 ||
larb_port >= M4U_MAX_LARB_PORT)) {
M4UMSG("%s, invalid port=%d, larb=%d\n",
__func__, port, larb);
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);
#ifndef CONFIG_FPGA_EARLY_PORTING
if (!!(mmu_en) != virt) {
#endif
M4ULOG_HIGH(
"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);
#ifndef CONFIG_FPGA_EARLY_PORTING
}
#endif
#if (TOTAL_M4U_NUM > 1)
} else if (m4u_index == 1) {
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)));
#endif
}
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(
unsigned int m4u_index, int larb, int on)
{
unsigned long long start, end;
if (unlikely(m4u_index >= TOTAL_M4U_NUM || larb >= SMI_LARB_NR)) {
M4ULOG_HIGH("%s, %d, invalid id=%d, larb=%d\n",
__func__, __LINE__, m4u_index, larb);
return;
}
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)
{
unsigned int PortID = (pM4uPort->ePortID);
unsigned 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(m4u_index >= TOTAL_M4U_NUM ||
larb >= SMI_LARB_NR)) {
M4ULOG_HIGH("%s, %d, invalid port=%d,id=%d\n",
__func__, __LINE__, PortID, m4u_index);
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(
l*arb_port, 1)));
*/
/* sec_en = !!(m4uHw_get_field_by_mask(
*gLarbBaseAddr[larb], SMI_LARB_SEC_EN, F_SMI_SEC_EN(
*larb_port, 1)));
*/
M4ULOG_HIGH(
"m4u_config_port: %s, m4u_tee_en:%d, mmu_en: %d -> %d, sec_en:%d -> %d\n",
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,
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)
{
unsigned int port, larb, larb_port;
int ret = 0;
unsigned int m4u_index;
unsigned long larb_base;
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 (larb >= SMI_LARB_NR ||
larb_port >= M4U_MAX_LARB_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 < M4U_PORT_NR; 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 (larb >= SMI_LARB_NR ||
larb_port >= M4U_MAX_LARB_PORT) {
M4UMSG("%s, larb %d is overflow\n",
__func__, larb);
ret = -1;
goto out;
}
larb_base = gLarbBaseAddr[larb];
orig_value =
m4uHw_get_field_by_mask(
larb_base,
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(
larb_base,
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(larb_base,
SMI_LARB_NON_SEC_CONx(larb_port),
F_SMI_BIT32,
0);
spin_unlock(&gM4u_reg_lock);
}
#endif
}
}
out:
/* 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(unsigned int m4u_index,
struct M4U_PERF_COUNT *pM4U_perf_count)
{
unsigned long m4u_base;
int i = 0;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return;
}
m4u_base = gM4UBaseAddr[m4u_index];
/* Main TLB performance count */
for (i = 0; i < M4U_SLAVE_NUM(m4u_index); i++) {
pM4U_perf_count->transaction_cnt[i] =
M4U_ReadReg32(m4u_base,
REG_MMU_ACC_CNT(i));
pM4U_perf_count->main_tlb_miss_cnt[i] =
M4U_ReadReg32(m4u_base,
REG_MMU_MAIN_MSCNT(i));
pM4U_perf_count->rs_perf_cnt[i] =
M4U_ReadReg32(m4u_base,
REG_MMU_RS_PERF_CNT(i));
}
/* Prefetch TLB performance count */
pM4U_perf_count->pfh_tlb_miss_cnt =
M4U_ReadReg32(m4u_base, REG_MMU_PF_MSCNT);
pM4U_perf_count->pfh_cnt =
M4U_ReadReg32(m4u_base, REG_MMU_PF_CNT);
}
int m4u_monitor_start(int m4u_id)
{
unsigned long m4u_base;
if (unlikely(m4u_id < 0 || m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
M4UINFO("====%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_index)
{
unsigned long m4u_base;
if (unlikely(m4u_index < 0 || m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
M4UINFO("====%s: %d======\n", __func__, m4u_index);
/* 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));
return 0;
}
void m4u_print_perf_counter(int m4u_index, int m4u_slave_id, const char *msg)
{
struct M4U_PERF_COUNT cnt = {{0, 0}, {0, 0}, 0, 0, {0, 0} };
unsigned int total_transaction_cnt = 0, total_cycle = 0;
unsigned int total_hit_rate, mmu_hit_rate, bandwidth, rs_perf;
int i = 0;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_index);
return;
}
M4UINFO(
"====m4u%d performance count dump for %s ======\n",
m4u_index, msg);
m4u_get_perf_counter(m4u_index, &cnt);
/* read register get the count */
for (i = 0; i < M4U_SLAVE_NUM(m4u_index); i++) {
total_transaction_cnt += cnt.transaction_cnt[i];
total_cycle += cnt.rs_perf_cnt[i];
M4UINFO(
"mmu%d perf: total:%u, miss:%u, rs:%u\n",
i,
cnt.transaction_cnt[i],
cnt.main_tlb_miss_cnt[i],
cnt.rs_perf_cnt[i]);
}
M4UINFO(
"pfh perf: miss(walk):%u, auto pfh:%u\n",
cnt.pfh_tlb_miss_cnt, cnt.pfh_cnt);
if (total_transaction_cnt > 0) {
total_hit_rate = (total_transaction_cnt -
cnt.pfh_tlb_miss_cnt) *
100 / total_transaction_cnt;
rs_perf = total_cycle / total_transaction_cnt;
} else {
total_hit_rate = 0;
rs_perf = 0;
}
bandwidth = (cnt.pfh_tlb_miss_cnt + cnt.pfh_cnt) * 32 / 33;
M4UINFO("total hit=%u, perf=%ucycle/tran, bw=%uB/ms\n",
total_hit_rate, rs_perf, bandwidth);
for (i = 0; i < M4U_SLAVE_NUM(m4u_index); i++) {
if (cnt.transaction_cnt[i] > 0)
mmu_hit_rate = (cnt.transaction_cnt[i] -
cnt.main_tlb_miss_cnt[i])
* 100 / cnt.transaction_cnt[i];
else
mmu_hit_rate = 0;
M4UINFO("mmu%d hit rate=%u\n", i, mmu_hit_rate);
}
}
#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++));
__M4U_BACKUP(m4u_base, REG_MMU_IN_ORDER_WR_EN, *(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 (dist = 0; dist < MMU_TOTAL_PROG_DIST_NR; dist++)
__M4U_BACKUP(m4u_base,
REG_MMU_PROG_DIST(dist, m4u_slave), *(pReg++));
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++));
__M4U_RESTORE(m4u_base, REG_MMU_IN_ORDER_WR_EN, *(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 (dist = 0; dist < MMU_TOTAL_PROG_DIST_NR; dist++)
__M4U_RESTORE(m4u_base,
REG_MMU_PROG_DIST(dist, m4u_slave), *(pReg++));
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 = 0;
if (unlikely(larb_idx >= SMI_LARB_NR)) {
M4UMSG("error: %s larb_idx = %d\n", __func__, larb_idx);
return;
}
larb_base = gLarbBaseAddr[larb_idx];
if (unlikely(larb_base == 0)) {
M4UMSG("%s, invalid larb=%d, addr=0x%lx\n",
__func__, larb_idx, larb_base);
return;
}
#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 = 0;
if (unlikely(larb_idx >= SMI_LARB_NR)) {
M4UMSG("error: %s larb_idx = %d\n", __func__, larb_idx);
return;
}
larb_base = gLarbBaseAddr[larb_idx];
if (unlikely(larb_base == 0)) {
M4UMSG("%s, invalid larb=%d, addr=0x%lx\n",
__func__, larb_idx, larb_base);
return;
}
#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("%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)
{
M4UMSG("%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);
}
/* will use larb_clock_on to open clock,
* however, this api maybe sleep, SO, shouldn't use it in IRQ
*/
void m4u_print_port_status(struct seq_file *seq, int only_print_active)
{
unsigned int port, mmu_en = 0;
unsigned int m4u_index, larb, last_larb = M4U_PORT_NR, larb_port;
unsigned long larb_base;
M4U_PRINT_SEQ(seq, "%s of larb ========>\n",
__func__);
for (port = 0; port < M4U_PORT_NR; port++) {
m4u_index = m4u_port_2_m4u_id(port);
if (m4u_index == 0) {
larb = m4u_port_2_larb_id(port);
if (unlikely(larb >= SMI_LARB_NR))
continue;
larb_base = gLarbBaseAddr[larb];
if (unlikely(larb_base == 0)) {
M4U_PRINT_SEQ(seq,
"%s, invalid larb=%u, addr=0x%lx\n",
__func__, larb, larb_base);
continue;
}
if (larb != last_larb) {
larb_clock_on(larb, 1);
if (last_larb < SMI_LARB_NR)
larb_clock_off(last_larb, 1);
last_larb = larb;
}
larb_port = m4u_port_2_larb_port(port);
mmu_en =
m4uHw_get_field_by_mask(
larb_base,
SMI_LARB_NON_SEC_CONx(larb_port),
F_SMI_NON_SEC_MMU_EN(1));
#if (TOTAL_M4U_NUM > 1)
} else if (m4u_index == 1) {
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));
#endif
} else {
M4U_PRINT_SEQ(seq, "invalid port=%d, m4u=%d\n",
port, m4u_index);
return;
}
if (only_print_active && !mmu_en)
continue;
M4U_PRINT_SEQ(seq,
"%s(%d),", m4u_get_port_name(port),
!!mmu_en);
}
if (m4u_index == 0 &&
last_larb < SMI_LARB_NR)
larb_clock_off(last_larb, 1);
M4U_PRINT_SEQ(seq, "\n");
}
#if 0
static int m4u_enable_prefetch(unsigned int PortID)
{
unsigned int m4u_index = m4u_port_2_m4u_id(PortID);
unsigned long m4u_base;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid port=%d,id=%d\n",
__func__, __LINE__, PortID, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
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(unsigned int PortID)
{
unsigned int m4u_index = m4u_port_2_m4u_id(PortID);
unsigned long m4u_base;
if (unlikely(m4u_index >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid port=%d,id=%d\n",
__func__, __LINE__, PortID, m4u_index);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_index];
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(unsigned int m4u_id)
{
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
M4UINFO("====%s: %d======\n", __func__, 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(unsigned int m4u_id)
{
unsigned long m4u_base;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_base = gM4UBaseAddr[m4u_id];
M4UINFO("====%s: %d======\n", __func__, 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
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 (m4u_index >= TOTAL_M4U_NUM ||
larb >= SMI_LARB_NR) {
M4U_PRINT_SEQ(seq, "port_status_ext errror larb %d\n", larb);
return;
}
if (m4u_index == 0) {
l_port = m4u_port_2_larb_port(tf_port);
if (l_port >= 32) {
M4U_PRINT_SEQ(seq,
"%s, invalid tf_port=%d, l_port=%d\n",
__func__, tf_port, l_port);
return;
}
larb_base = gLarbBaseAddr[larb];
if (unlikely(larb_base == 0)) {
M4U_PRINT_SEQ(seq,
"%s, invalid larb=%d, addr=0x%lx\n",
__func__, larb, larb_base);
return;
}
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 < 0 || 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 < 0 || 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(unsigned int port, unsigned int mva, unsigned int size)
{
int i = 0;
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 ((unsigned int)port >= (unsigned int)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 ((unsigned int)port >= (unsigned int)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)
#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(unsigned int 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);
M4UMSG("(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;
unsigned long larb_base;
if (irq == gM4uDev->irq_num[0]) {
m4u_base = gM4UBaseAddr[0];
m4u_index = 0;
} else {
M4UMSG("%s(), Invalid irq number %d\n", __func__, 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_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);
unsigned int m4u_slave_id, larb_index = 0, larb_port = 0;
unsigned int regval;
int layer, write, m4u_port, i;
unsigned int fault_mva, fault_pa, fault_pa_b33_32, fault_catch;
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_pa_b33_32 = !!(fault_mva & F_MMU_FAULT_PA_B33_32);
fault_catch = !!(fault_mva &
(F_MMU_FAULT_CATCH_INVPA | F_MMU_FAULT_CATCH_TF));
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);
larb_port = m4u_port_2_larb_port(m4u_port);
if (unlikely(larb_index >= SMI_LARB_NR)) {
M4UMSG("%s, invalid larb=%d, port=%d\n",
__func__, larb_index, m4u_port);
} else {
larb_base = gLarbBaseAddr[larb_index];
M4UMSG("larb%d, port%s, Nsec:0x%x\n",
larb_index, m4u_get_port_name(m4u_port),
M4U_ReadReg32(larb_base,
SMI_LARB_NON_SEC_CONx(larb_port))
);
}
/* 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:mva=0x%x,pa=0x%x,4g=0x%x,catch=0x%x,",
fault_mva, fault_pa,
fault_pa_b33_32, fault_catch);
M4UMSG("layer=%d,wr=%d,REG_MMU_INIT=0x%x\n",
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) {
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_ext(NULL, m4u_port);
/* 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));
for (i = 0; i < MAU_NR_PER_M4U_SLAVE; i++) {
if (IntrSrc & F_INT_MAU(m4u_slave_id, i)) {
MMU_INT_REPORT(m4u_index, m4u_slave_id,
F_INT_MAU(m4u_slave_id, i));
__mau_dump_status(m4u_index, m4u_slave_id, i);
}
}
m4u_clear_intr(m4u_index);
m4u_isr_record();
}
return IRQ_HANDLED;
}
struct m4u_domain *m4u_get_domain_by_port(unsigned int port)
{
return &gM4uDomain;
}
struct m4u_domain *m4u_get_domain_by_id(int id)
{
return &gM4uDomain;
}
int m4u_get_domain_nr(void)
{
return 1;
}
#ifdef M4U_MMU_SLAVE_SWITCH
void m4u_switch_larb_slave(unsigned int larb_idx, unsigned int slave_idx)
{
if (unlikely(larb_idx >= SMI_LARB_NR ||
slave_idx >= M4U_SLAVE_NUM(0))) {
M4ULOG_HIGH("%s, %d, invalid id=%d, slave=%d\n",
__func__, __LINE__, larb_idx, slave_idx);
return;
}
m4uHw_set_field_by_mask(gComBaseAddr,
SMI_COMMON_LARB_BUS_SEL,
F_SMI_LARB_BUS(0x3, larb_idx),
F_SMI_LARB_BUS(slave_idx, larb_idx));
}
#endif
int m4u_reg_init(struct m4u_domain *m4u_domain,
unsigned long ProtectPA, unsigned int m4u_id)
{
unsigned int regval = 0;
int i = 0;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
M4UINFO("====%s: %d======\n", __func__, m4u_id);
M4UMSG("%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;
#ifdef M4U_MMU_SLAVE_SWITCH
node =
of_find_compatible_node(NULL,
NULL, "mediatek,smi_common");
if (node == NULL)
M4UINFO("init common error\n");
gComBaseAddr = (unsigned long)of_iomap(node, 0);
#endif
for (i = 0; i < SMI_LARB_NR; i++) {
node =
of_find_compatible_node(NULL,
NULL, gM4U_SMILARB[i]);
if (node == NULL)
M4UINFO("init larb %d error\n", i);
gLarbBaseAddr[i] = (unsigned long)of_iomap(node, 0);
M4UINFO("init larb %d, 0x%lx\n", i, gLarbBaseAddr[i]);
}
}
/* ========================================= */
/* perisys init */
/* ========================================= */
#if (TOTAL_M4U_NUM > 1)
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);
}
#endif
/* ============================================= */
/* m4u registers */
/* ============================================= */
M4UMSG(
"%s id = %d, base address: 0x%lx, pgd_pa: 0x%lx\n",
__func__, m4u_id,
gM4UBaseAddr[m4u_id], (unsigned long)m4u_domain->pgd_pa);
{
unsigned int pgd_pa_reg = m4u_domain->pgd_pa & F_MMUg_PT_VA_MSK;
if (m4u_domain->pgd_pa > 0xffffffffL) {
if (!!(m4u_domain->pgd_pa & 0x100000000LL))
pgd_pa_reg |= F_PGD_REG_BIT32;
if (!!(m4u_domain->pgd_pa & 0x200000000LL))
pgd_pa_reg |= F_PGD_REG_BIT33;
}
M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMUg_PT_BASE,
pgd_pa_reg);
M4U_WriteReg32(gM4UBaseAddr[m4u_id], REG_MMUg_PT_BASE_SEC,
pgd_pa_reg);
M4UMSG("%s id:%d, pg_base:0x%x\n",
__func__, m4u_id, M4U_ReadReg32(gM4UBaseAddr[m4u_id],
REG_MMUg_PT_BASE));
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(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)
{
M4UINFO("%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(unsigned int m4u_id)
{
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
m4u_invalid_tlb_all(m4u_id);
m4u_clear_intr(m4u_id);
return 0;
}
int m4u_hw_init(struct m4u_device *m4u_dev, unsigned int m4u_id)
{
unsigned long pProtectVA;
phys_addr_t ProtectPA;
if (unlikely(m4u_id >= TOTAL_M4U_NUM)) {
M4ULOG_HIGH("%s, %d, invalid id=%d\n",
__func__, __LINE__, m4u_id);
return -1;
}
#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;
}
if (ProtectPA > 0xffffffffL) {
if (ProtectPA & 0x100000000LL)
ProtectPA |= F_RP_PA_REG_BIT32;
if (ProtectPA & 0x200000000LL)
ProtectPA |= F_RP_PA_REG_BIT33;
}
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);
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]);
m4u_isr_pause_timer_init();
m4u_monitor_start(m4u_id);
//only 1set MAU of each slave
mau_start_monitor(0, 0, 0, 1, 1,
0, 0, 0x0, 0xfffff, 0xffffffff, 0xffffffff);
mau_start_monitor(0, 1, 0, 1, 1,
0, 0, 0x0, 0xfffff, 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);
}
g_translation_fault_debug = 0;
return 0;
}
int m4u_hw_deinit(struct m4u_device *m4u_dev, unsigned 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 */
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