mirror of
https://github.com/CTCaer/hekate
synced 2024-09-19 14:18:59 +00:00
9e41aa7759
- Allow ASID to be configured - Allow 34-bit PAs - Use special type for setting PDE/PTE config - Initialize all pages as non accessible - Add function for mapping 4MB regions directly - Add SMMU heap reset function - Correct address load OP to 32-bit and remove alignment on SMMU enable payload - Refactor all defines
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (c) 2018-2024 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <utils/types.h>
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#define MC_SMMU_AVPC_ASID 0x23C
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#define MC_SMMU_TSEC_ASID 0x294
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#define SMMU_NS BIT(0)
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#define SMMU_WRITE BIT(1)
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#define SMMU_READ BIT(2)
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#define SMMU_ATTR_ALL (SMMU_READ | SMMU_WRITE | SMMU_NS)
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typedef struct _pde_t {
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union {
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union {
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struct {
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u32 table:22;
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u32 rsvd:6;
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u32 next:1;
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u32 attr:3;
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} tbl;
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struct {
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u32 rsvd_:10;
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u32 page:12;
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u32 rsvd:6;
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u32 next:1;
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u32 attr:3;
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} huge;
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};
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u32 pde;
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};
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} pde_t;
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typedef struct _pte_t {
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u32 page:22;
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u32 rsvd:7;
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u32 attr:3;
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} pte_t;
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static_assert(sizeof(pde_t) == sizeof(u32), "pde_t size is wrong!");
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static_assert(sizeof(pte_t) == sizeof(u32), "pte_t size is wrong!");
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void *smmu_page_zalloc(u32 num);
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void smmu_flush_all();
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void smmu_init();
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void smmu_enable();
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void smmu_reset_heap();
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void *smmu_init_domain(u32 dev_base, u32 asid);
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void smmu_deinit_domain(u32 dev_base, u32 asid);
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void smmu_domain_bypass(u32 dev_base, bool bypass);
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void smmu_map(void *ptb, u32 iova, u64 iopa, u32 pages, u32 attr);
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void smmu_map_huge(void *ptb, u32 iova, u64 iopa, u32 regions, u32 attr);
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