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| author | Qinglin Pan <panqinglin2020@iscas.ac.cn> | 2022-01-27 10:48:41 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-02-14 16:32:39 -0800 |
| commit | d10efa21a9374829a662ec1377237e85f430c024 (patch) | |
| tree | d84406b277207ae9442e4785db251b2c20cdac98 /arch/riscv/mm/init.c | |
| parent | e783362eb54cd99b2cac8b3a9aeac942e6f6ac07 (diff) | |
| download | linux-d10efa21a9374829a662ec1377237e85f430c024.tar.bz2 | |
riscv: mm: Control p4d's folding by pgtable_l5_enabled
To determine pgtable level at boot time, we can not use helper functions
in include/asm-generic/pgtable-nop4d.h and must implement these
functions. This patch uses pgtable_l5_enabled variable instead of
including pgtable-nop4d.h to controle p4d's folding, and implements
corresponding helper functions.
Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/mm/init.c')
| -rw-r--r-- | arch/riscv/mm/init.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index cf4d018b7d66..9e4ed02e3d56 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -45,7 +45,9 @@ u64 satp_mode = SATP_MODE_32; EXPORT_SYMBOL(satp_mode); bool pgtable_l4_enabled = IS_ENABLED(CONFIG_64BIT) && !IS_ENABLED(CONFIG_XIP_KERNEL); +bool pgtable_l5_enabled = false; EXPORT_SYMBOL(pgtable_l4_enabled); +EXPORT_SYMBOL(pgtable_l5_enabled); phys_addr_t phys_ram_base __ro_after_init; EXPORT_SYMBOL(phys_ram_base); |