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| author | Kamlesh Gurudasani <kamlesh@ti.com> | 2023-05-12 17:28:52 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-06-01 12:40:16 -0400 |
| commit | 0688ff3ae23cd71f0a8b4fd24152dce62d918ad2 (patch) | |
| tree | bb60d1c63a2d155082f5a43356ee272c6e496041 | |
| parent | 414cad08cb7bd3814aad7e800f861d5bffad0fd2 (diff) | |
| download | u-boot-0688ff3ae23cd71f0a8b4fd24152dce62d918ad2.zip u-boot-0688ff3ae23cd71f0a8b4fd24152dce62d918ad2.tar.gz u-boot-0688ff3ae23cd71f0a8b4fd24152dce62d918ad2.tar.bz2 | |
arm: mach-k3: arm64-mmu: do not map ATF and OPTEE regions in A53 MMU
ATF and OPTEE regions may be firewalled from non-secure entities.
If we still map them for non-secure A53, speculative access may happen,
which will not cause any faults and related error response will be ignored,
but it's better to not to map those regions for non-secure A53 as there
will be no actual access at all.
Create separate table as ATF region is at different locations for am64
and am62/am62a.
Signed-off-by: Kamlesh Gurudasani <kamlesh@ti.com>
| -rw-r--r-- | arch/arm/mach-k3/arm64-mmu.c | 64 |
1 files changed, 59 insertions, 5 deletions
diff --git a/arch/arm/mach-k3/arm64-mmu.c b/arch/arm/mach-k3/arm64-mmu.c index 88687c2..f8087d2 100644 --- a/arch/arm/mach-k3/arm64-mmu.c +++ b/arch/arm/mach-k3/arm64-mmu.c @@ -222,14 +222,13 @@ struct mm_region *mem_map = j721s2_mem_map; #endif /* CONFIG_SOC_K3_J721S2 */ -#if defined(CONFIG_SOC_K3_AM642) || defined(CONFIG_SOC_K3_AM625) || \ - defined(CONFIG_SOC_K3_AM62A7) +#if defined(CONFIG_SOC_K3_AM625) || defined(CONFIG_SOC_K3_AM62A7) /* NR_DRAM_BANKS + 32bit IO + 64bit IO + terminator */ -#define NR_MMU_REGIONS (CONFIG_NR_DRAM_BANKS + 3) +#define NR_MMU_REGIONS (CONFIG_NR_DRAM_BANKS + 4) /* ToDo: Add 64bit IO */ -struct mm_region am64_mem_map[NR_MMU_REGIONS] = { +struct mm_region am62_mem_map[NR_MMU_REGIONS] = { { .virt = 0x0UL, .phys = 0x0UL, @@ -240,10 +239,65 @@ struct mm_region am64_mem_map[NR_MMU_REGIONS] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, + .size = 0x1E780000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { + .virt = 0xA0000000UL, + .phys = 0xA0000000UL, + .size = 0x60000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + + }, { + .virt = 0x880000000UL, + .phys = 0x880000000UL, .size = 0x80000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, { + .virt = 0x500000000UL, + .phys = 0x500000000UL, + .size = 0x400000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, { + /* List terminator */ + 0, + } +}; + +struct mm_region *mem_map = am62_mem_map; +#endif /* CONFIG_SOC_K3_AM625 || CONFIG_SOC_K3_AM62A7 */ + +#ifdef CONFIG_SOC_K3_AM642 + +/* NR_DRAM_BANKS + 32bit IO + 64bit IO + terminator */ +#define NR_MMU_REGIONS (CONFIG_NR_DRAM_BANKS + 4) + +/* ToDo: Add 64bit IO */ +struct mm_region am64_mem_map[NR_MMU_REGIONS] = { + { + .virt = 0x0UL, + .phys = 0x0UL, + .size = 0x80000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, { + .virt = 0x80000000UL, + .phys = 0x80000000UL, + .size = 0x1E800000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { + .virt = 0xA0000000UL, + .phys = 0xA0000000UL, + .size = 0x60000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { .virt = 0x880000000UL, .phys = 0x880000000UL, .size = 0x80000000UL, @@ -263,4 +317,4 @@ struct mm_region am64_mem_map[NR_MMU_REGIONS] = { }; struct mm_region *mem_map = am64_mem_map; -#endif /* CONFIG_SOC_K3_AM642 || CONFIG_SOC_K3_AM625 || CONFIG_SOC_K3_AM62A7 */ +#endif /* CONFIG_SOC_K3_AM642 */ |