mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 05:04:09 +08:00
5bd2cc5666
By taking GENERIC_IOREMAP method, the generic ioremap_prot() and iounmap() are visible and available to arch. This change will simplify implementation by removing duplicated code with generic ioremap_prot() and iounmap(), and has the equivalent functioality. For hexagon, the current ioremap() and iounmap() are the same as generic version. After taking GENERIC_IOREMAP way, the old ioremap() and iounmap() can be completely removed. Link: https://lkml.kernel.org/r/20230706154520.11257-3-bhe@redhat.com Signed-off-by: Baoquan He <bhe@redhat.com> Cc: Brian Cain <bcain@quicinc.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Christoph Hellwig <hch@lst.de> Cc: Chris Zankel <chris@zankel.net> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Jonas Bonn <jonas@southpole.se> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Niklas Schnelle <schnelle@linux.ibm.com> Cc: Rich Felker <dalias@libc.org> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
146 lines
3.0 KiB
Plaintext
146 lines
3.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
# Hexagon configuration
|
|
comment "Linux Kernel Configuration for Hexagon"
|
|
|
|
config HEXAGON
|
|
def_bool y
|
|
select ARCH_32BIT_OFF_T
|
|
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
|
|
select ARCH_NO_PREEMPT
|
|
select DMA_GLOBAL_POOL
|
|
# Other pending projects/to-do items.
|
|
# select HAVE_REGS_AND_STACK_ACCESS_API
|
|
# select HAVE_HW_BREAKPOINT if PERF_EVENTS
|
|
# select ARCH_HAS_CPU_IDLE_WAIT
|
|
# select GPIOLIB
|
|
# select HAVE_CLK
|
|
# select GENERIC_PENDING_IRQ if SMP
|
|
select GENERIC_ATOMIC64
|
|
select HAVE_PERF_EVENTS
|
|
# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
|
|
select GENERIC_ALLOCATOR
|
|
select GENERIC_IRQ_SHOW
|
|
select HAVE_ARCH_KGDB
|
|
select HAVE_ARCH_TRACEHOOK
|
|
select NEED_SG_DMA_LENGTH
|
|
select NO_IOPORT_MAP
|
|
select GENERIC_IOMAP
|
|
select GENERIC_IOREMAP
|
|
select GENERIC_SMP_IDLE_THREAD
|
|
select STACKTRACE_SUPPORT
|
|
select GENERIC_CLOCKEVENTS_BROADCAST
|
|
select LOCK_MM_AND_FIND_VMA
|
|
select MODULES_USE_ELF_RELA
|
|
select GENERIC_CPU_DEVICES
|
|
select ARCH_WANT_LD_ORPHAN_WARN
|
|
select TRACE_IRQFLAGS_SUPPORT
|
|
help
|
|
Qualcomm Hexagon is a processor architecture designed for high
|
|
performance and low power across a wide variety of applications.
|
|
|
|
config HEXAGON_PHYS_OFFSET
|
|
def_bool y
|
|
help
|
|
Platforms that don't load the kernel at zero set this.
|
|
|
|
config FRAME_POINTER
|
|
def_bool y
|
|
|
|
config LOCKDEP_SUPPORT
|
|
def_bool y
|
|
|
|
config EARLY_PRINTK
|
|
def_bool y
|
|
|
|
config MMU
|
|
def_bool y
|
|
|
|
config GENERIC_CSUM
|
|
def_bool y
|
|
|
|
#
|
|
# Use the generic interrupt handling code in kernel/irq/:
|
|
#
|
|
config GENERIC_IRQ_PROBE
|
|
def_bool y
|
|
|
|
config GENERIC_HWEIGHT
|
|
def_bool y
|
|
|
|
config STACKTRACE_SUPPORT
|
|
def_bool y
|
|
select STACKTRACE
|
|
|
|
config GENERIC_BUG
|
|
def_bool y
|
|
depends on BUG
|
|
|
|
menu "Machine selection"
|
|
|
|
choice
|
|
prompt "System type"
|
|
default HEXAGON_COMET
|
|
|
|
config HEXAGON_COMET
|
|
bool "Comet Board"
|
|
help
|
|
Support for the Comet platform.
|
|
|
|
endchoice
|
|
|
|
config HEXAGON_ARCH_VERSION
|
|
int "Architecture version"
|
|
default 2
|
|
|
|
config CMDLINE
|
|
string "Default kernel command string"
|
|
default ""
|
|
help
|
|
On some platforms, there is currently no way for the boot loader
|
|
to pass arguments to the kernel. For these, you should supply some
|
|
command-line options at build time by entering them here. At a
|
|
minimum, you should specify the memory size and the root device
|
|
(e.g., mem=64M root=/dev/nfs).
|
|
|
|
config SMP
|
|
bool "Multi-Processing support"
|
|
help
|
|
Enables SMP support in the kernel. If unsure, say "Y"
|
|
|
|
config NR_CPUS
|
|
int "Maximum number of CPUs" if SMP
|
|
range 2 6 if SMP
|
|
default "1" if !SMP
|
|
default "6" if SMP
|
|
help
|
|
This allows you to specify the maximum number of CPUs which this
|
|
kernel will support. The maximum supported value is 6 and the
|
|
minimum value which makes sense is 2.
|
|
|
|
This is purely to save memory - each supported CPU adds
|
|
approximately eight kilobytes to the kernel image.
|
|
|
|
choice
|
|
prompt "Kernel page size"
|
|
default PAGE_SIZE_4KB
|
|
help
|
|
Changes the default page size; use with caution.
|
|
|
|
config PAGE_SIZE_4KB
|
|
bool "4KB"
|
|
|
|
config PAGE_SIZE_16KB
|
|
bool "16KB"
|
|
|
|
config PAGE_SIZE_64KB
|
|
bool "64KB"
|
|
|
|
config PAGE_SIZE_256KB
|
|
bool "256KB"
|
|
|
|
endchoice
|
|
|
|
source "kernel/Kconfig.hz"
|
|
|
|
endmenu
|