From: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, mpe@ellerman.id.au
Cc: anton@samba.org, paulus@samba.org, npiggin@gmail.com,
linuxppc-dev@lists.ozlabs.org,
Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Subject: [PATCH v5 04/12] powerpc: Add soft_enabled manipulation functions
Date: Wed, 4 Jan 2017 17:19:42 +0530 [thread overview]
Message-ID: <1483530590-30274-5-git-send-email-maddy@linux.vnet.ibm.com> (raw)
In-Reply-To: <1483530590-30274-1-git-send-email-maddy@linux.vnet.ibm.com>
Add new soft_enabled_* manipulation function and implement
arch_local_* using the soft_enabled_* wrappers.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/hw_irq.h | 32 ++++++++++++++------------------
1 file changed, 14 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 88f6a8e2b5e3..c292ef4b4bc5 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -62,21 +62,7 @@ static inline notrace void soft_enabled_set(unsigned long enable)
: "memory");
}
-static inline notrace unsigned long soft_enabled_set_return(unsigned long enable)
-{
- unsigned long flags;
-
- asm volatile(
- "lbz %0,%1(13); stb %2,%1(13)"
- : "=r" (flags)
- : "i" (offsetof(struct paca_struct, soft_enabled)),\
- "r" (enable)
- : "memory");
-
- return flags;
-}
-
-static inline unsigned long arch_local_save_flags(void)
+static inline notrace unsigned long soft_enabled_return(void)
{
unsigned long flags;
@@ -88,20 +74,30 @@ static inline unsigned long arch_local_save_flags(void)
return flags;
}
-static inline unsigned long arch_local_irq_disable(void)
+static inline notrace unsigned long soft_enabled_set_return(unsigned long enable)
{
unsigned long flags, zero;
asm volatile(
- "li %1,%3; lbz %0,%2(13); stb %1,%2(13)"
+ "mr %1,%3; lbz %0,%2(13); stb %1,%2(13)"
: "=r" (flags), "=&r" (zero)
: "i" (offsetof(struct paca_struct, soft_enabled)),\
- "i" (IRQ_DISABLE_MASK_LINUX)
+ "r" (enable)
: "memory");
return flags;
}
+static inline unsigned long arch_local_save_flags(void)
+{
+ return soft_enabled_return();
+}
+
+static inline unsigned long arch_local_irq_disable(void)
+{
+ return soft_enabled_set_return(IRQ_DISABLE_MASK_LINUX);
+}
+
extern void arch_local_irq_restore(unsigned long);
static inline void arch_local_irq_enable(void)
--
2.7.4
next prev parent reply other threads:[~2017-01-04 11:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-04 11:49 [PATCH v5 00/12]powerpc: "paca->soft_enabled" based local atomic operation implementation Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 01/12] powerpc: Add #defs for paca->soft_enabled flags Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 02/12] powerpc: move set_soft_enabled() and rename Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 03/12] powerpc: Use soft_enabled_set api to update paca->soft_enabled Madhavan Srinivasan
2017-01-04 11:49 ` Madhavan Srinivasan [this message]
2017-01-04 11:49 ` [PATCH v5 05/12] powerpc: reverse the soft_enable logic Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 06/12] powerpc: Avoid using EXCEPTION_PROLOG_1 macro in MASKABLE_* Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 07/12] Add support to take additional parameter in MASKABLE_* macro Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 08/12] powerpc: Add support to mask perf interrupts and replay them Madhavan Srinivasan
2017-01-04 12:38 ` Nicholas Piggin
2017-01-04 16:51 ` Madhavan Srinivasan
2017-01-05 6:05 ` Nicholas Piggin
2017-01-04 11:49 ` [PATCH v5 09/12] powerpc:Add new kconfig IRQ_DEBUG_SUPPORT Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 10/12] powerpc: Add new set of soft_enabled_ functions Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 11/12] powerpc: rewrite local_t using soft_irq Madhavan Srinivasan
2017-01-04 11:49 ` [PATCH v5 12/12] powerpc: Rename soft_enabled to soft_disabled_mask Madhavan Srinivasan
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=1483530590-30274-5-git-send-email-maddy@linux.vnet.ibm.com \
--to=maddy@linux.vnet.ibm.com \
--cc=anton@samba.org \
--cc=benh@kernel.crashing.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=npiggin@gmail.com \
--cc=paulus@samba.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).