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756d6d836d
linux/arch/mips
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Maciej W. Rozycki 756d6d836d
MIPS: SiByte: Enable ZONE_DMA32 for LittleSur 
The LittleSur board is marked for high memory support and therefore
clearly must provide a way to have enough memory installed for some to
be present outside the low 4GiB physical address range.  With the memory
map of the BCM1250 SOC it has been built around it means over 1GiB of
actual DRAM, as only the first 1GiB is mapped in the low 4GiB physical
address range[1].

Complement commit cce335ae47 ("[MIPS] 64-bit Sibyte kernels need
DMA32.") then and also enable ZONE_DMA32 for LittleSur.

References:

[1] "BCM1250/BCM1125/BCM1125H User Manual", Revision 1250_1125-UM100-R,
    Broadcom Corporation, 21 Oct 2002, Section 3: "System Overview",
    "Memory Map", pp. 34-38

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Patchwork: https://patchwork.linux-mips.org/patch/21107/
Fixes: cce335ae47 ("[MIPS] 64-bit Sibyte kernels need DMA32.")
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
2018-11-15 10:57:52 -08:00
..
alchemy mtd: rawnand: Move platform_nand_xxx definitions out of rawnand.h 2018-10-03 11:12:25 +02:00
ar7 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
ath25 mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
ath79 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
bcm47xx MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3 2018-08-29 11:11:00 -07:00
bcm63xx mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
bmips mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
boot MIPS: Boston: Disable EG20T prefetch 2018-11-09 17:20:17 -08:00
cavium-octeon mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
cobalt MIPS: Cobalt: Fix typo 2016-08-03 08:16:30 +02:00
configs MIPS: DEC: Add 64-bit DECstation defconfig 2018-11-06 15:37:24 -08:00
crypto MIPS: crypto: Add crc32 and crc32c hw accelerated module 2018-02-19 20:50:36 +00:00
dec mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
emma mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
fw mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
generic MIPS: mscc: add PCB120 to the ocelot fitImage 2018-10-09 10:38:29 -07:00
include MIPS: Use Kconfig to select CPU_NO_EFFICIENT_FFS 2018-11-12 14:26:16 -08:00
jazz mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
jz4740 JFFS2 changes: 2018-08-14 10:57:44 -07:00
kernel MIPS: Don't dump Hi & Lo regs on >= MIPSr6 2018-11-09 17:20:12 -08:00
kvm MIPS: Introduce CONFIG_MIPS_FP_SUPPORT 2018-11-09 10:23:15 -08:00
lantiq mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
lasat mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
lib MIPS: lib: Use kernel_pref & user_pref in memcpy() 2018-10-15 23:11:14 -07:00
loongson32 MIPS: Loongson: Merge load addresses 2018-07-30 18:59:01 -07:00
loongson64 MIPS: Simplify FP context initialization 2018-11-09 10:23:13 -08:00
math-emu MIPS: Ensure emulated FP sets PF_USED_MATH 2018-11-09 10:23:14 -08:00
mm mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
mti-malta mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
net bpf, mips: remove unused function 2018-05-14 19:11:45 -07:00
netlogic mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
oprofile MIPS: perf: More robustly probe for the presence of per-tc counters 2018-05-15 15:16:16 +01:00
paravirt mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
pci MIPS: SiByte: Set 32-bit bus mask for BCM1250 PCI 2018-11-15 10:57:44 -08:00
pic32 mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
pistachio License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pmcs-msp71xx MIPS: Remove no-op/identity casts 2018-08-31 11:49:20 -07:00
pnx833x mtd: rawnand: Move platform_nand_xxx definitions out of rawnand.h 2018-10-03 11:12:25 +02:00
power License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ralink mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
rb532 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sgi-ip22 MIPS: Remove no-op/identity casts 2018-08-31 11:49:20 -07:00
sgi-ip27 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sgi-ip32 MIPS: IP32: use generic dma noncoherent ops 2018-06-24 09:27:27 -07:00
sibyte mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sni MIPS: sni: Remove the read_persistent_clock() 2018-05-14 23:58:25 +01:00
tools MIPS: Use a custom elf-entry program to find kernel entry point 2018-08-30 09:39:22 -07:00
txx9 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
vdso kbuild: replace cc-name test with CONFIG_CC_IS_CLANG 2018-11-02 22:49:00 +09:00
vr41xx MIPS: Annotate cpu_wait implementations with __cpuidle 2018-06-28 14:18:54 -07:00
Kbuild MIPS: Disable Werror when W= is set 2017-04-10 11:56:07 +02:00
Kbuild.platforms MIPS: Xilfpga: Switch to using generic defconfigs 2017-11-08 22:54:14 +00:00
Kconfig MIPS: SiByte: Enable ZONE_DMA32 for LittleSur 2018-11-15 10:57:52 -08:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile MIPS: Don't compile math-emu when CONFIG_MIPS_FP_SUPPORT=n 2018-11-09 10:23:18 -08:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00