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a3010a0465
linux/arch/arc
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Eugeniy Paltsev a3010a0465 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: 9ed68785f7 ("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>
2019-01-17 14:38:00 -08:00
..
boot ARC: [plat-hsdk] Enable DW APB GPIO support 2018-11-12 10:38:27 -08:00
configs ARC: change defconfig defaults to ARCv2 2018-11-30 10:54:01 -08:00
include arc: remove redundant kernel-space generic-y 2019-01-17 14:38:00 -08:00
kernel ARC: boot log: print Action point details 2019-01-17 14:38:00 -08:00
lib ARC: dw2 unwind: enable cfi pseudo ops in string lib 2016-09-30 14:48:22 -07:00
mm ARC: adjust memblock_reserve of kernel memory 2019-01-17 14:38:00 -08:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
plat-axs10x PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
plat-eznps arc: [plat-eznps] fix printk warning in arc/plat-eznps/mtm.c 2018-07-30 11:48:49 -07:00
plat-hsdk PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
plat-sim ARC: [plat-sim] Include this platform unconditionally 2017-08-04 13:49:47 +05:30
plat-tb10x arc: select GPIOLIB directly 2016-04-26 14:07:59 +02:00
Kbuild
Kconfig Kconfig file consolidation for v4.21 2018-12-29 13:40:29 -08:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile ARC: change defconfig defaults to ARCv2 2018-11-30 10:54:01 -08:00