openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/arch/arm
History
Florian Fainelli f6f9be1c30 ARM: 8725/1: Add Broadcom Brahma-B15 readahead cache support 
This patch adds support for the Broadcom Brahma-B15 CPU readahead cache
controller. This cache controller sits between the L2 and the memory bus
and its purpose is to provide a friendler burst size towards the DDR
interface than the native cache line size.

The readahead cache is mostly transparent, except for
flush_kern_cache_all, which is precisely what we are overriding here.

The readahead cache only intercepts reads, and does invalidate on
writes (IOW), as such, some data can remain stale in any of its buffers, such
that we need to flush it, which is an operation that needs to happen in
a particular order:

- disable the readahead cache
- flush it
- call the appropriate cache-v7.S function
- re-enable

This patch tries to minimize the impact to the cache-v7.S file by only
providing a stub in case CONFIG_CACHE_B15_RAC is enabled (default for
ARCH_BRCMSTB since it is the current user).

Signed-off-by: Alamy Liu <alamyliu@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 		2017-12-17 22:15:35 +00:00
..
boot ARM: verify size of zImage 2017-12-17 22:14:05 +00:00
common Merge branch 'pm-sleep' 2017-11-13 01:41:20 +01:00
configs ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
crypto License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
firmware
…
include ARM: 8725/1: Add Broadcom Brahma-B15 readahead cache support 2017-12-17 22:15:35 +00:00
kernel ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit code 2017-12-17 22:14:21 +00:00
kvm GICv4 Support for KVM/ARM for v4.15 2017-11-17 13:20:01 +01:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-actions ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-alpine License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-artpec
…
mach-asm9260
…
mach-aspeed
…
mach-at91 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-axxia License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-bcm ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-berlin
…
mach-clps711x License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-cns3xxx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-davinci ARM: Device-tree updates for 4.15 2017-11-16 15:48:26 -08:00
mach-digicolor License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-dove License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-ebsa110 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-efm32 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-ep93xx ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-exynos ARM: EXYNOS: Remove Exynos4212 related dead code 2017-10-08 13:52:09 +02:00
mach-footbridge Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
mach-gemini License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-highbank License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-hisi License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-imx ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-integrator ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-iop13xx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-iop32x treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mach-iop33x License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-ixp4xx treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
mach-keystone License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-ks8695 Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2017-11-14 17:52:21 -08:00
mach-lpc18xx
…
mach-lpc32xx
…
mach-mediatek ARM: mediatek: Cocci spatch "of_table" 2017-10-13 16:56:55 +02:00
mach-meson ARM: meson: enable MESON_IRQ_GPIO in Kconfig for meson8b 2017-10-29 08:40:08 -07:00
mach-mmp License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-moxart
…
mach-mv78xx0 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-mvebu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-mxs ARM: mxs: constify platform_suspend_ops 2017-09-20 22:21:08 +08:00
mach-netx
…
mach-nomadik
…
mach-nspire
…
mach-omap1 ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-omap2 ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-orion5x treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mach-oxnas
…
mach-picoxcell
…
mach-prima2 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-pxa This pull request contains the following core changes: 2017-11-22 20:46:06 -10:00
mach-qcom
…
mach-realview
…
mach-rockchip
…
mach-rpc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-s3c24xx ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-s3c64xx ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-s5pv210
…
mach-sa1100 Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2017-11-14 17:52:21 -08:00
mach-shmobile ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-socfpga License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-spear License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-sti
…
mach-stm32
…
mach-sunxi ARM: sunxi: add support for R40 SoC 2017-09-22 21:57:09 +02:00
mach-tango License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-tegra Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
mach-u300 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-uniphier kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
mach-ux500 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-versatile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-vexpress ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
mach-vt8500 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-w90x900 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-zx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-zynq License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm ARM: 8725/1: Add Broadcom Brahma-B15 readahead cache support 2017-12-17 22:15:35 +00:00
net
…
nwfpe License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
plat-iop License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
plat-omap ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
plat-orion
…
plat-pxa
…
plat-samsung ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
plat-versatile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
probes ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit code 2017-12-17 22:14:21 +00:00
tools License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
vfp
…
xen xen: re-introduce support for grant v2 interface 2017-11-06 15:50:17 -05:00
Kconfig ARM: 8723/2: always assume the "unified" syntax for assembly code 2017-12-17 22:14:21 +00:00
Kconfig-nommu Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2017-11-16 12:50:35 -08:00
Kconfig.debug Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm 2017-11-26 15:03:49 -08:00
Makefile ARM: 8723/2: always assume the "unified" syntax for assembly code 2017-12-17 22:14:21 +00:00