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bdk: smmu: powergate ccplex after enabling smmu

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CTCaer 2024-03-13 01:44:58 +02:00
parent fb31cb2926
commit 3a4fa12f42
4 changed files with 19 additions and 39 deletions
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38
bdk/mem/smmu.c
View file

@ -23,27 +23,18 @@
#include <soc/t210.h>
#include <mem/mc_t210.h>
#include <mem/smmu.h>
#include <utils/aarch64_util.h>
bool smmu_used = false;
u8 *_pageheap = (u8 *)SMMU_HEAP_ADDR;
// Enabling SMMU requires a TZ secure write: MC(MC_SMMU_CONFIG) = 1;
u8 smmu_payload[] __attribute__((aligned(16))) = {
0x41, 0x01, 0x00, 0x58, // 0x00: LDR X1, =0x70019010
0xC1, 0x00, 0x00, 0x58, // 0x00: LDR X1, =0x70019010
0x20, 0x00, 0x80, 0xD2, // 0x04: MOV X0, #0x1
0x20, 0x00, 0x00, 0xB9, // 0x08: STR W0, [X1]
0x1F, 0x71, 0x08, 0xD5, // 0x0C: IC IALLUIS
0x9F, 0x3B, 0x03, 0xD5, // 0x10: DSB ISH
0xFE, 0xFF, 0xFF, 0x17, // 0x14: B loop
0x00, 0x00, 0x80, 0xD2, // 0x18: MOV X0, #0x0
0x20, 0x00, 0x00, 0xB9, // 0x1C: STR W0, [X1]
0x80, 0x00, 0x00, 0x58, // 0x20: LDR X0, =0x4002B000
0x00, 0x00, 0x1F, 0xD6, // 0x28: BR X0
0x10, 0x90, 0x01, 0x70, // 0x28: MC_SMMU_CONFIG
0x00, 0x00, 0x00, 0x00, // 0x2C:
0x00, 0x00, 0x00, 0x00, // 0x30: secmon address
0x00, 0x00, 0x00, 0x00 // 0x34:
0x10, 0x90, 0x01, 0x70, // 0x18: MC_SMMU_CONFIG
};
void *page_alloc(u32 num)
@ -76,7 +67,7 @@ void smmu_flush_all()
smmu_flush_regs();
}
void smmu_init(u32 secmon_base)
void smmu_init()
{
MC(MC_SMMU_PTB_ASID) = 0;
MC(MC_SMMU_PTB_DATA) = 0;
@ -84,31 +75,22 @@ void smmu_init(u32 secmon_base)
MC(MC_SMMU_PTC_CONFIG) = 0x28000F3F;
MC(MC_SMMU_PTC_FLUSH) = 0;
MC(MC_SMMU_TLB_FLUSH) = 0;
// Set the secmon address
*(u32 *)(smmu_payload + 0x30) = secmon_base;
}
void smmu_enable()
{
if (smmu_used)
static bool enabled = false;
if (enabled)
return;
ccplex_boot_cpu0((u32)smmu_payload, true);
smmu_used = true;
msleep(150);
ccplex_boot_cpu0((u32)smmu_payload, false);
msleep(100);
ccplex_powergate_cpu0();
smmu_flush_all();
}
bool smmu_is_used()
{
return smmu_used;
}
void smmu_exit()
{
*(u32 *)(smmu_payload + 0x14) = _NOP();
enabled = true;
}
u32 *smmu_init_domain4(u32 dev_base, u32 asid)

5
bdk/mem/smmu.h
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2024 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@ -72,10 +73,8 @@ void *page_alloc(u32 num);
u32 *smmu_alloc_pdir();
void smmu_flush_regs();
void smmu_flush_all();
void smmu_init(u32 secmon_base);
void smmu_init();
void smmu_enable();
bool smmu_is_used();
void smmu_exit();
u32 *smmu_init_domain4(u32 dev_base, u32 asid);
u32 *smmu_get_pte(u32 *pdir, u32 iova);
void smmu_map(u32 *pdir, u32 addr, u32 page, int cnt, u32 attr);

8
bdk/sec/tsec.c
View file

@ -1,6 +1,6 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2023 CTCaer
* Copyright (c) 2018-2024 CTCaer
* Copyright (c) 2018 balika011
*
* This program is free software; you can redistribute it and/or modify it
@ -146,9 +146,9 @@ int tsec_query(void *tsec_keys, tsec_ctxt_t *tsec_ctxt)
{
// Init SMMU translation for TSEC.
pdir = smmu_init_for_tsec();
smmu_init(tsec_ctxt->secmon_base);
// Enable SMMU
if (!smmu_is_used())
smmu_init();
// Enable SMMU.
smmu_enable();
// Clock reset controller.

3
bdk/sec/tsec.h
View file

@ -1,6 +1,6 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2021 CTCaer
* Copyright (c) 2018-2024 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@ -35,7 +35,6 @@ typedef struct _tsec_ctxt_t
u32 type;
void *pkg1;
u32 pkg11_off;
u32 secmon_base;
} tsec_ctxt_t;
int tsec_query(void *tsec_keys, tsec_ctxt_t *tsec_ctxt);