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| author |  Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
| 2018-12-19 19:16:16 +0300 |
|---|---|---|
| committer |  Vineet Gupta <vgupta@synopsys.com>
| 2019-01-17 14:38:00 -0800 |
| commit | a3010a0465383300f909f62b8a83f83ffa7b2517 (patch) | |
| tree | 29b5b2a584829f388436256379efa6ee104615b2 /arch/arc/include | |
| parent | arc: remove redundant kernel-space generic-y (diff) | |
| download | linux-a3010a0465383300f909f62b8a83f83ffa7b2517.tar.gz linux-a3010a0465383300f909f62b8a83f83ffa7b2517.tar.bz2 linux-a3010a0465383300f909f62b8a83f83ffa7b2517.zip | |
ARC: adjust memblock_reserve of kernel memory
In setup_arch_memory we reserve the memory area wherein the kernel
is located. Current implementation may reserve more memory than
it actually required in case of CONFIG_LINUX_LINK_BASE is not
equal to CONFIG_LINUX_RAM_BASE. This happens because we calculate
start of the reserved region relatively to the CONFIG_LINUX_RAM_BASE
and end of the region relatively to the CONFIG_LINUX_RAM_BASE.
For example in case of HSDK board we wasted 256MiB of physical memory:
------------------->8------------------------------
Memory: 770416K/1048576K available (5496K kernel code,
240K rwdata, 1064K rodata, 2200K init, 275K bss,
278160K reserved, 0K cma-reserved)
------------------->8------------------------------
Fix that.
Fixes: 9ed68785f7f2b ("ARC: mm: Decouple RAM base address from kernel link addr")
Cc: stable@vger.kernel.org #4.14+
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include')
0 files changed, 0 insertions, 0 deletions