linux

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Samuel Holland 6427b5c0f0 riscv: Allow NOMMU kernels to access all of RAM [ Upstream commit `2c0391b29b` ] NOMMU kernels currently cannot access memory below the kernel link address. Remove this restriction by setting PAGE_OFFSET to the actual start of RAM, as determined from the devicetree. The kernel link address must be a constant, so keep using CONFIG_PAGE_OFFSET for that purpose. Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Jesse Taube <mr.bossman075@gmail.com> Link: https://lore.kernel.org/r/20241026171441.3047904-3-samuel.holland@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Sasha Levin <sashal@kernel.org>	History 2025-05-29 11:02:05 +02:00
..
asm	riscv: Allow NOMMU kernels to access all of RAM	2025-05-29 11:02:05 +02:00
uapi/asm	RISC-V: hwprobe: Add SCALAR to misaligned perf defines	2024-08-14 13:13:24 -07:00

Samuel Holland 6427b5c0f0 riscv: Allow NOMMU kernels to access all of RAM

[ Upstream commit 2c0391b29b ]

NOMMU kernels currently cannot access memory below the kernel link
address. Remove this restriction by setting PAGE_OFFSET to the actual
start of RAM, as determined from the devicetree. The kernel link address
must be a constant, so keep using CONFIG_PAGE_OFFSET for that purpose.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Jesse Taube <mr.bossman075@gmail.com>
Link: https://lore.kernel.org/r/20241026171441.3047904-3-samuel.holland@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

History

2025-05-29 11:02:05 +02:00

asm riscv: Allow NOMMU kernels to access all of RAM 2025-05-29 11:02:05 +02:00

uapi/asm RISC-V: hwprobe: Add SCALAR to misaligned perf defines 2024-08-14 13:13:24 -07:00