Commit Graph

3 Commits

Author SHA1 Message Date
Christoph Hellwig
372def1f93
riscv: don't read back satp in paging_init
init_mm.pgd (aka swapped_pgd) gets relocated like all other kernel
symbols by the elf loader, so there is no need to reload it from satp.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-01-30 19:16:07 -08:00
Christoph Hellwig
5ec9c4ff04
riscv: add ZONE_DMA32
This patch allows devices that require memory that can be addressed
using 32-bit addresses to work easily on RISC-V systems.  The newly
improved dma-direct ops will tap into this pool automatically for
32-bit addressing.

Based on an earlier patch from Wesley W. Terpstra.

CC: Wesley W. Terpstra <terpstra@sifive.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-01-30 19:14:27 -08:00
Palmer Dabbelt
76d2a0493a RISC-V: Init and Halt Code
This contains the various __init C functions, the initial assembly
kernel entry point, and the code to reset the system.  When a file was
init-related this patch contains the entire file.

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
2017-09-26 15:26:44 -07:00