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swh:1:snp:49cd9498d6cccc5e78252c27dcb645bcf7bf0c91
Revision abb8e86b269604e906a6a4af7a09f04b72dbb862 authored by Atish Patra on 11 January 2021, 23:45:02 UTC, committed by Palmer Dabbelt on 16 January 2021, 05:35:47 UTC 
RISC-V: Set current memblock limit
 
Currently, linux kernel can not use last 4k bytes of addressable space
because IS_ERR_VALUE macro treats those as an error. This will be an issue
for RV32 as any memblock allocator potentially allocate chunk of memory
from the end of DRAM (2GB) leading bad address error even though the
address was technically valid.

Fix this issue by limiting the memblock if available memory spans the
entire address space.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
1 parent 797f037
History
Tip revision: 644e9524388a5dbc6d4f58c492ee9ef7bd4ddf4d authored by Linus Torvalds on 26 November 2022, 02:02:49 UTC
Merge tag 'for-v6.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Tip revision: 644e952
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.clang-format -rw-r--r-- 16.3 KB
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