Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-03 19:53:32 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
6f14293257
linux/arch/mips
History
Gregory CLEMENT 6f14293257 MIPS: Allow using more than 32-bit addresses for reset vectors when possible 
While most MIPS64 CPUs use 32-bit values for their VP Local Reset
Exception Base registers, some I6500 CPUs can utilize a 64-bit value,
allowing addressing up to 47 bits of physical memory.

For the EyeQ6H CPU, where physical memory addresses exceed the 4GB
limit, utilizing this feature is mandatory to enable SMP support.

Unfortunately, there is no way to detect this capability based solely
on the ID of the CPU. According to Imagination, which designed the
CPU, the only reliable method is to fill the reset base field with
0xFF and then read back its value. If the upper part of the read-back
value is zero, it indicates that the address space is limited to 32
bits.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2024-10-30 23:45:48 +01:00
..
alchemy MIPS: Remove unused function dump_au1000_dma_channel() in dma.c 2024-08-29 10:38:18 +02:00
ath25 MIPS: ath25: Constify static irq_domain_ops 2022-02-22 09:39:03 +01:00
ath79 MIPS: ath79: remove obsolete ATH79_DEV_* configs 2023-03-17 10:28:04 +01:00
bcm47xx mips: bmips: setup: make CBR address configurable 2024-06-27 10:44:32 +02:00
bcm63xx gpiolib: legacy: Kill GPIOF_INIT_* definitions 2024-09-02 11:47:06 +02:00
bmips mips: bmips: setup: make CBR address configurable 2024-06-27 10:44:32 +02:00
boot move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
cavium-octeon Just cleanups and fixes 2024-01-17 11:20:50 -08:00
cobalt MIPS: Cobalt: Fix missing prototypes 2024-01-22 10:32:21 +01:00
configs mips: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM 2024-09-10 00:36:52 +02:00
crypto move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
dec genirq: Convert kstat_irqs to a struct 2024-04-12 17:08:05 +02:00
fw MIPS: fw arc: Fix missing prototypes 2024-01-22 11:12:01 +01:00
generic mips: generic: add fdt fixup for Realtek reference board 2024-07-12 13:12:13 +02:00
include MIPS: Allow using more than 32-bit addresses for reset vectors when possible 2024-10-30 23:45:48 +01:00
ingenic MIPS: Kconfig: ingenic: Ensure MACH_INGENIC_GENERIC selects all SoCs 2021-06-01 11:44:47 +02:00
jazz mips/jazz: remove unused jazz_handle_int() declaration 2024-08-29 10:39:00 +02:00
kernel MIPS: Allow using more than 32-bit addresses for reset vectors when possible 2024-10-30 23:45:48 +01:00
kvm KVM: MIPS: Rename virtualization {en,dis}abling APIs to match common KVM 2024-09-04 11:02:33 -04:00
lantiq MIPS: lantiq: improve USB initialization 2024-07-12 13:04:24 +02:00
lib mips: implement xor_unlock_is_negative_byte 2023-10-18 14:34:17 -07:00
loongson2ef MIPS: Fix typos 2024-01-08 10:39:12 +01:00
loongson32 MIPS: loongson32: Remove dma.h and nand.h 2023-10-06 10:10:13 +02:00
loongson64 arch, mm: pull out allocation of NODE_DATA to generic code 2024-09-03 21:15:28 -07:00
math-emu MIPS: Fix comment typo 2022-09-12 15:33:24 +02:00
mm mm: make arch_get_unmapped_area() take vm_flags by default 2024-09-09 16:39:13 -07:00
mobileye MIPS: mobileye: Add EyeQ6H support 2024-06-11 10:15:50 +02:00
mti-malta vgacon: clean up global screen_info instances 2023-10-17 10:17:02 +02:00
n64 mips: Add N64 machine type 2021-01-22 11:40:00 +01:00
net bpf: Take return from set_memory_rox() into account with bpf_jit_binary_lock_ro() 2024-03-14 19:28:52 -07:00
pci MIPS: Octeron: remove source file executable bit 2024-07-09 10:38:08 +02:00
pic32 MIPS: Fixup explicit DT include clean-up 2023-07-28 11:41:09 +02:00
power mips: suspend: include linux/suspend.h as needed 2023-12-10 17:21:41 -08:00
ralink MIPS: ralink: Fix missing get_c0_perfcount_int prototype 2024-08-29 10:29:28 +02:00
rb532 MIPS: RB532: Declare prom_setup_cmdline() and rb532_gpio_init() static 2024-04-15 10:21:52 +02:00
sgi-ip22 mips: sgi-ip22: Replace "s[n]?printf" with sysfs_emit in sysfs callbacks 2024-10-30 23:45:17 +01:00
sgi-ip27 arch, mm: move definition of node_data to generic code 2024-09-03 21:15:28 -07:00
sgi-ip30 MIPS: ip30: ip30-console: Add missing include 2024-06-19 13:09:35 +02:00
sgi-ip32 MIPS: sgi-ip32: Fix missing prototypes 2024-01-22 11:12:19 +01:00
sibyte mips: sibyte: add missing MODULE_DESCRIPTION() macro 2024-07-23 09:47:40 +02:00
sni vgacon: clean up global screen_info instances 2023-10-17 10:17:02 +02:00
tools MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
txx9 mips: txx9: make txx9_sramc_subsys const 2024-02-20 13:36:34 +01:00
vdso Makefile: remove redundant tool coverage variables 2024-05-14 23:35:48 +09:00
Kbuild MIPS: Share generic kernel code with other architecture 2024-02-20 13:36:25 +01:00
Kbuild.platforms MIPS: mobileye: Add EyeQ6H support 2024-06-11 10:15:50 +02:00
Kconfig ALong with the usual shower of singleton patches, notable patch series in 2024-09-21 07:29:05 -07:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile MIPS: Fix fallback march for SB1 2024-07-15 18:16:23 +02:00
Makefile.postlink kbuild: remove ARCH_POSTLINK from module builds 2023-10-28 21:10:08 +09:00