linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: james.morse@arm.com (James Morse)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/6] arm64: kernel: preparatory: Move config_sctlr_el1
Date: Tue, 21 Jul 2015 13:23:27 +0100	[thread overview]
Message-ID: <1437481411-1595-3-git-send-email-james.morse@arm.com> (raw)
In-Reply-To: <1437481411-1595-1-git-send-email-james.morse@arm.com>

Later patches need config_sctlr_el1 to set/clear bits in the sctlr_el1
register.

This patch moves this function into header a file.

Signed-off-by: James Morse <james.morse@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/cputype.h     |  3 ---
 arch/arm64/include/asm/sysreg.h      | 12 ++++++++++++
 arch/arm64/kernel/armv8_deprecated.c | 11 +----------
 3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index a84ec605bed8..ee6403df9fe4 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -81,9 +81,6 @@
 #define ID_AA64MMFR0_BIGEND(mmfr0)	\
 	(((mmfr0) & ID_AA64MMFR0_BIGEND_MASK) >> ID_AA64MMFR0_BIGEND_SHIFT)
 
-#define SCTLR_EL1_CP15BEN	(0x1 << 5)
-#define SCTLR_EL1_SED		(0x1 << 8)
-
 #ifndef __ASSEMBLY__
 
 /*
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 5c89df0acbcb..56391fbae1e1 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -20,6 +20,9 @@
 #ifndef __ASM_SYSREG_H
 #define __ASM_SYSREG_H
 
+#define SCTLR_EL1_CP15BEN	(0x1 << 5)
+#define SCTLR_EL1_SED		(0x1 << 8)
+
 #define sys_reg(op0, op1, crn, crm, op2) \
 	((((op0)-2)<<19)|((op1)<<16)|((crn)<<12)|((crm)<<8)|((op2)<<5))
 
@@ -55,6 +58,15 @@ asm(
 "	.endm\n"
 );
 
+static inline void config_sctlr_el1(u32 clear, u32 set)
+{
+	u32 val;
+
+	asm volatile("mrs %0, sctlr_el1" : "=r" (val));
+	val &= ~clear;
+	val |= set;
+	asm volatile("msr sctlr_el1, %0" : : "r" (val));
+}
 #endif
 
 #endif	/* __ASM_SYSREG_H */
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index 7922c2e710ca..78d56bff91fd 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -16,6 +16,7 @@
 
 #include <asm/insn.h>
 #include <asm/opcodes.h>
+#include <asm/sysreg.h>
 #include <asm/system_misc.h>
 #include <asm/traps.h>
 #include <asm/uaccess.h>
@@ -504,16 +505,6 @@ ret:
 	return 0;
 }
 
-static inline void config_sctlr_el1(u32 clear, u32 set)
-{
-	u32 val;
-
-	asm volatile("mrs %0, sctlr_el1" : "=r" (val));
-	val &= ~clear;
-	val |= set;
-	asm volatile("msr sctlr_el1, %0" : : "r" (val));
-}
-
 static int cp15_barrier_set_hw_mode(bool enable)
 {
 	if (enable)
-- 
2.1.4

  parent reply	other threads:[~2015-07-21 12:23 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-21 12:23 [PATCH v3 0/6] arm64: kernel: Add support for Privileged Access Never James Morse
2015-07-21 12:23 ` [PATCH v3 1/6] arm64: kernel: Add cpuid_feature_extract_field() for 4bit sign extension James Morse
2015-07-21 12:32   ` Catalin Marinas
2015-07-21 12:23 ` James Morse [this message]
2015-07-21 12:23 ` [PATCH v3 3/6] arm64: kernel: Add cpufeature 'enable' callback James Morse
2015-07-21 12:23 ` [PATCH v3 4/6] arm64: kernel: Add min_field_value and use '>=' for feature detection James Morse
2015-07-21 12:33   ` Catalin Marinas
2015-07-21 12:23 ` [PATCH v3 5/6] arm64: kernel: Add optional CONFIG_ parameter to ALTERNATIVE() James Morse
2015-07-21 12:23 ` [PATCH v3 6/6] arm64: kernel: Add support for Privileged Access Never James Morse
2015-07-21 12:38   ` Catalin Marinas
2015-07-22 17:01     ` Will Deacon
2015-07-22 18:04       ` James Morse
2015-07-22 18:14         ` Will Deacon
2015-07-23  7:58           ` James Morse
2015-07-22 18:05       ` [PATCH v4] " James Morse
2015-07-23 13:07         ` Will Deacon
2015-07-24 15:14           ` James Morse
2015-07-24 16:56             ` Will Deacon
2015-07-23 12:00     ` [PATCH v3 6/6] " Will Deacon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1437481411-1595-3-git-send-email-james.morse@arm.com \
    --to=james.morse@arm.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).