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: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 08/15] powerpc/32: add helper to write into segment registers
Date: Thu, 10 Jan 2019 15:11:55 +0000 (UTC) [thread overview]
Message-ID: <597539a98a4ac4b01b465408a26fba6bc9935a97.1547132681.git.christophe.leroy@c-s.fr> (raw)
In-Reply-To: <cover.1547132681.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 1c98ef1f2d5b..a70cbaf5c26f 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1425,6 +1425,11 @@ 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:[~2019-01-10 15:27 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 15:11 [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 01/15] powerpc/mm/32: add base address to mmu_mapin_ram() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 02/15] powerpc/mm/32s: rework mmu_mapin_ram() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 03/15] powerpc/mm/32s: use generic mmu_mapin_ram() for all blocks Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 04/15] powerpc/32: always populate page tables for Abatron BDI Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 05/15] powerpc/wii: remove wii_mmu_mapin_mem2() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 06/15] powerpc/mm/32s: use _PAGE_EXEC in setbat() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 07/15] powerpc/mm/32s: add setibat() clearibat() and update_bats() Christophe Leroy
2019-01-10 15:11 ` Christophe Leroy [this message]
2019-01-10 15:11 ` [PATCH v2 09/15] powerpc/mmu: add is_strict_kernel_rwx() helper Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 10/15] powerpc/kconfig: define PAGE_SHIFT inside Kconfig Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 11/15] powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 12/15] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 13/15] powerpc/kconfig: make _etext and data areas alignment configurable on Book3s 32 Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 14/15] powerpc/8xx: don't disable large TLBs with CONFIG_STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 15/15] powerpc/kconfig: make _etext and data areas alignment configurable on 8xx Christophe Leroy
2019-01-13 18:16 ` [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX Jonathan Neuschäfer
2019-01-13 19:43 ` Christophe Leroy
2019-01-13 21:02 ` Jonathan Neuschäfer
2019-01-14 18:23 ` Christophe Leroy
2019-01-15 0:33 ` Jonathan Neuschäfer
2019-01-15 6:51 ` Christophe Leroy
2019-01-15 10:22 ` Michael Ellerman
2019-01-15 10:57 ` Christophe Leroy
2019-02-20 13:23 ` Michael Ellerman
2019-02-20 15:30 ` Christophe Leroy
2019-01-16 0:35 ` Jonathan Neuschäfer
2019-01-16 6:55 ` Christophe Leroy
2019-01-16 13:16 ` Jonathan Neuschäfer
2019-01-16 13:34 ` Christophe Leroy
2019-01-16 23:48 ` Jonathan Neuschäfer
2019-01-17 10:14 ` Christophe Leroy
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