From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
j.neuschaefer@gmx.net
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v1 08/13] powerpc/32: add helper to write into segment registers
Date: Thu, 29 Nov 2018 19:00:26 +0000 (UTC) [thread overview]
Message-ID: <df66f6ea0919350a5d1b583717b877ffe62fde5c.1543517818.git.christophe.leroy@c-s.fr> (raw)
In-Reply-To: <cover.1543517818.git.christophe.leroy@c-s.fr>
This patch add an helper which wraps 'mtsrin' instruction
to write into segment registers.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/include/asm/reg.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index de52c3166ba4..c9c382e57017 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1423,6 +1423,11 @@ static inline void msr_check_and_clear(unsigned long bits)
#define mfsrin(v) ({unsigned int rval; \
asm volatile("mfsrin %0,%1" : "=r" (rval) : "r" (v)); \
rval;})
+
+static inline void mtsrin(u32 val, u32 idx)
+{
+ asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx));
+}
#endif
#define proc_trap() asm volatile("trap")
--
2.13.3
next prev parent reply other threads:[~2018-11-29 19:01 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-29 19:00 [PATCH v1 00/13] powerpc/32s: Use BATs for STRICT_KERNEL_RWX Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 01/13] powerpc/mm: add exec protection on powerpc 603 Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 02/13] powerpc/mm/32: add base address to mmu_mapin_ram() Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 03/13] powerpc/mm/32s: rework mmu_mapin_ram() Christophe Leroy
2018-12-03 21:55 ` Jonathan Neuschäfer
2018-12-13 12:16 ` Christophe Leroy
2018-12-13 14:51 ` Christophe Leroy
2018-12-17 1:28 ` Jonathan Neuschäfer
2018-12-17 9:29 ` Christophe Leroy
2018-12-18 3:05 ` Jonathan Neuschäfer
2018-12-18 9:18 ` Christophe Leroy
2018-12-18 14:07 ` Jonathan Neuschäfer
2018-12-18 14:15 ` Christophe Leroy
2018-12-18 14:55 ` Christophe Leroy
2018-12-18 15:04 ` Christophe Leroy
2018-12-18 17:04 ` Jonathan Neuschäfer
2018-12-18 18:13 ` Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 04/13] powerpc/mm/32s: use generic mmu_mapin_ram() for all blocks Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 05/13] powerpc/wii: remove wii_mmu_mapin_mem2() Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 06/13] powerpc/mm/32s: use _PAGE_EXEC in setbat() Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 07/13] powerpc/mm/32s: add setibat() clearibat() and update_bats() Christophe Leroy
2018-11-29 19:00 ` Christophe Leroy [this message]
2018-11-29 19:00 ` [PATCH v1 09/13] powerpc/mmu: add is_strict_kernel_rwx() helper Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 10/13] powerpc/kconfig: define PAGE_SHIFT inside Kconfig Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 11/13] powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 12/13] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX Christophe Leroy
2018-11-29 19:00 ` [PATCH v1 13/13] powerpc/kconfig: make _etext and data areas alignment configurable on Book3s 32 Christophe Leroy
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