Logo
Explore Help
Register Sign In
leandrof/linux
1
0
Fork 0
You've already forked linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Files
7677f7fd8be76659cd2d0db8ff4093bbb51c20e5
linux/arch/arm/include/asm/krait-l2-accessors.h

10 lines
231 B
C
Raw Normal View History

ARM: Add Krait L2 register accessor functions Krait CPUs have a handful of L2 cache controller registers that live behind a cp15 based indirection register. First you program the indirection register (l2cpselr) to point the L2 'window' register (l2cpdr) at what you want to read/write. Then you read/write the 'window' register to do what you want. The l2cpselr register is not banked per-cpu so we must lock around accesses to it to prevent other CPUs from re-pointing l2cpdr underneath us. Cc: Mark Rutland <mark.rutland@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Sricharan R <sricharan@codeaurora.org> Tested-by: Craig Tatlor <ctatlor97@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-08-14 17:42:20 +05:30
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASMARM_KRAIT_L2_ACCESSORS_H
#define __ASMARM_KRAIT_L2_ACCESSORS_H
extern void krait_set_l2_indirect_reg(u32 addr, u32 val);
extern u32 krait_get_l2_indirect_reg(u32 addr);
#endif
Reference in New Issue Copy Permalink
Powered by Gitea Version: 1.25.1 Page: 595ms Template: 1ms
English
Bahasa Indonesia Deutsch English Español Français Gaeilge Italiano Latviešu Magyar nyelv Nederlands Polski Português de Portugal Português do Brasil Suomi Svenska Türkçe Čeština Ελληνικά Български Русский Українська فارسی മലയാളം 日本語 简体中文 繁體中文(台灣) 繁體中文(香港) 한국어
Licenses API