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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH for-4.8 V2 05/10] powerpc: Call jump_label_init early
Date: Sat, 23 Jul 2016 14:42:38 +0530	[thread overview]
Message-ID: <1469265163-1491-6-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1469265163-1491-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>

Call jump_label_init early so that can use static keys for cpu and
mmu feature check. We should have finalzed all the cpu/mmu features when
we call setup_system and we also did feature fixup for ASM based code.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 arch/powerpc/lib/feature-fixups.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index defb2998b818..8b0b0b51e8aa 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -177,6 +177,12 @@ void apply_feature_fixups(void)
 			  &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup);
 #endif
 	do_final_fixups();
+	/*
+	 * init jump label so that cpu and mmu feature check can be optimized
+	 * using jump label. We should have all the cpu/mmu features finalized
+	 * by now.
+	 */
+	jump_label_init();
 }
 
 #ifdef CONFIG_FTR_FIXUP_SELFTEST
-- 
2.7.4

  parent reply	other threads:[~2016-07-23  9:13 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-23  9:12 [PATCH for-4.8 V2 00/10] Use jump label for cpu/mmu_has_feature Aneesh Kumar K.V
2016-07-23  9:12 ` [PATCH for-4.8 V2 01/10] powerpc/mm: Add __cpu/__mmu_has_feature Aneesh Kumar K.V
2016-07-25  5:26   ` Nicholas Piggin
2016-07-23  9:12 ` [PATCH for-4.8 V2 02/10] powerpc/mm: Convert early cpu/mmu feature check to use the new helpers Aneesh Kumar K.V
2016-07-23  9:12 ` [PATCH for-4.8 V2 03/10] powerpc/mm/radix: Add radix_set_pte to use in early init Aneesh Kumar K.V
2016-07-25  6:23   ` Nicholas Piggin
2016-07-25  8:33     ` Michael Ellerman
2016-07-25  8:36   ` Michael Ellerman
2016-07-25  8:56     ` Nicholas Piggin
2016-07-23  9:12 ` [PATCH for-4.8 V2 04/10] jump_label: make it possible for the archs to invoke jump_label_init() much earlier Aneesh Kumar K.V
2016-07-23  9:12 ` Aneesh Kumar K.V [this message]
2016-07-23  9:12 ` [PATCH for-4.8 V2 06/10] powerpc: kill mfvtb() Aneesh Kumar K.V
2016-07-23  9:12 ` [PATCH for-4.8 V2 07/10] powerpc: move the cpu_has_feature to a separate file Aneesh Kumar K.V
2016-07-23  9:12 ` [PATCH for-4.8 V2 08/10] powerpc: use the jump label for cpu_has_feature Aneesh Kumar K.V
2016-07-25  6:28   ` Nicholas Piggin
2016-07-25 11:30     ` Kevin Hao
2016-07-23  9:12 ` [PATCH for-4.8 V2 09/10] powerpc: use jump label for mmu_has_feature Aneesh Kumar K.V
2016-07-23  9:12 ` [PATCH for-4.8 V2 10/10] powerpc/mm: Catch the usage of cpu/mmu_has_feature before jump label init Aneesh Kumar K.V
2016-07-25  5:22 ` [PATCH for-4.8 V2 00/10] Use jump label for cpu/mmu_has_feature Nicholas Piggin
2016-07-25  6:25   ` Aneesh Kumar K.V
2016-07-25  6:37     ` Nicholas Piggin

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