AuxXxilium/linux_dsm_epyc7002
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e1b2ecb562
linux_dsm_epyc7002/arch
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Atish Patra e1b2ecb562 RISC-V: Set current memblock limit 
[ Upstream commit abb8e86b269604e906a6a4af7a09f04b72dbb862 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27 11:55:04 +01:00
..
alpha local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
arc arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC 2021-01-19 18:27:26 +01:00
arm xen: Fix event channel callback via INTX/GSI 2021-01-27 11:55:00 +01:00
arm64 arm64: make atomic helpers __always_inline 2021-01-27 11:55:00 +01:00
c6x arch-cleanup-2020-10-22 2020-10-23 10:06:38 -07:00
csky local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
h8300 local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
hexagon local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
ia64 local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
m68k local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
microblaze local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
mips MIPS: relocatable: fix possible boot hangup with KASLR enabled 2021-01-19 18:27:20 +01:00
nds32 local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
nios2 sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
openrisc sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
parisc local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
powerpc powerpc/32s: Fix RTAS machine check with VMAP stack 2021-01-17 14:16:52 +01:00
riscv RISC-V: Set current memblock limit 2021-01-27 11:55:04 +01:00
s390 local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
sh local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
sparc local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
um um: ubd: Submit all data segments atomically 2021-01-06 14:56:55 +01:00
x86 x86/xen: Fix xen_hvm_smp_init() when vector callback not available 2021-01-27 11:55:01 +01:00
xtensa local64.h: make <asm/local64.h> mandatory 2021-01-12 20:18:16 +01:00
.gitignore
Kconfig fanotify: Fix sys_fanotify_mark() on native x86-32 2021-01-17 14:16:59 +01:00