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| author |  Olof Johansson <olof@lixom.net>
| 2020-01-06 15:20:24 -0800 |
|---|---|---|
| committer |  Palmer Dabbelt <palmerdabbelt@google.com>
| 2020-01-22 13:10:01 -0800 |
| commit | fc76324fa27fa4cab2cf115460d3a1d8e7e201ee (patch) | |
| tree | bb8c863a1ff39ea4ffaaa488c6188de454760437 /arch/riscv | |
| parent | kasan: Add riscv to KASAN documentation. (diff) | |
| download | linux-fc76324fa27fa4cab2cf115460d3a1d8e7e201ee.tar.gz linux-fc76324fa27fa4cab2cf115460d3a1d8e7e201ee.tar.bz2 linux-fc76324fa27fa4cab2cf115460d3a1d8e7e201ee.zip | |
riscv: keep 32-bit kernel to 32-bit phys_addr_t
While rv32 technically has 34-bit physical addresses, no current platforms
use it and it's likely to shake out driver bugs.
Let's keep 64-bit phys_addr_t off on 32-bit builds until one shows up,
since other work will be needed to make such a system useful anyway.
PHYS_ADDR_T_64BIT is def_bool 64BIT, so just remove the select.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Kconfig | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index d1d77c6d6721..b04692fd4a63 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -12,8 +12,6 @@ config 32BIT config RISCV def_bool y - # even on 32-bit, physical (and DMA) addresses are > 32-bits - select PHYS_ADDR_T_64BIT select OF select OF_EARLY_FLATTREE select OF_IRQ |