From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 5/8] arm64: use PC-relative reference for secondary_holding_pen_release
Date: Wed, 18 Mar 2015 15:55:24 +0100 [thread overview]
Message-ID: <1426690527-14258-6-git-send-email-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <1426690527-14258-1-git-send-email-ard.biesheuvel@linaro.org>
Replace the confusing virtual/physical address arithmetic with a simple
PC-relative reference.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
arch/arm64/kernel/head.S | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 7e8e746931af..65c7de889c8c 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -564,10 +564,6 @@ ENTRY(__boot_cpu_mode)
.popsection
#ifdef CONFIG_SMP
- .align 3
-1: .quad .
- .quad secondary_holding_pen_release
-
/*
* This provides a "holding pen" for platforms to hold all secondary
* cores are held until we're ready for them to initialise.
@@ -579,10 +575,7 @@ ENTRY(secondary_holding_pen)
mrs x0, mpidr_el1
ldr x1, =MPIDR_HWID_BITMASK
and x0, x0, x1
- adr x1, 1b
- ldp x2, x3, [x1]
- sub x1, x1, x2
- add x3, x3, x1
+ adr_l x3, secondary_holding_pen_release
pen: ldr x4, [x3]
cmp x4, x0
b.eq secondary_startup
--
1.8.3.2
next prev parent reply other threads:[~2015-03-18 14:55 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 14:55 [PATCH v5 0/8] arm64: head.S cleanup Ard Biesheuvel
2015-03-18 14:55 ` [PATCH v5 1/8] arm64: Get rid of struct cpu_table Ard Biesheuvel
2015-03-18 16:11 ` Mark Rutland
2015-03-23 17:11 ` Suzuki K. Poulose
2015-03-23 17:38 ` Will Deacon
2015-03-23 17:41 ` Suzuki K. Poulose
2015-03-18 14:55 ` [PATCH v5 2/8] arm64: add macros for common adrp usages Ard Biesheuvel
2015-03-18 17:54 ` Mark Rutland
2015-03-18 17:56 ` Ard Biesheuvel
2015-03-18 18:05 ` Mark Rutland
2015-03-18 18:06 ` Ard Biesheuvel
2015-03-18 14:55 ` [PATCH v5 3/8] arm64: remove processor_id Ard Biesheuvel
2015-03-18 14:55 ` [PATCH v5 4/8] arm64: remove __switch_data object from head.S Ard Biesheuvel
2015-03-18 14:55 ` Ard Biesheuvel [this message]
2015-03-18 14:55 ` [PATCH v5 6/8] arm64: merge __enable_mmu and __turn_mmu_on Ard Biesheuvel
2015-03-18 14:55 ` [PATCH v5 7/8] arm64: remove __calc_phys_offset Ard Biesheuvel
2015-03-18 14:55 ` [PATCH v5 8/8] arm64: enforce x1|x2|x3 == 0 upon kernel entry as per boot protocol Ard Biesheuvel
2015-03-18 18:13 ` Mark Rutland
2015-03-18 18:16 ` Ard Biesheuvel
2015-03-18 18:46 ` Ard Biesheuvel
2015-03-18 18:57 ` Mark Rutland
2015-03-18 19:55 ` Ard Biesheuvel
2015-03-18 20:24 ` Mark Rutland
2015-03-19 7:30 ` Ard Biesheuvel
2015-03-19 10:35 ` Mark Rutland
2015-03-19 10:38 ` Ard Biesheuvel
2015-03-19 10:41 ` Mark Rutland
2015-03-19 11:00 ` [PATCH v3] " Ard Biesheuvel
2015-03-19 13:36 ` Mark Rutland
2015-03-20 11:31 ` Ard Biesheuvel
2015-03-20 11:41 ` Mark Rutland
2015-03-20 11:45 ` Ard Biesheuvel
2015-03-20 12:25 ` Will Deacon
2015-03-20 12:50 ` Ard Biesheuvel
2015-03-18 22:26 ` [PATCH v5 8/8] " Peter Maydell
2015-03-18 18:23 ` [PATCH v5 0/8] arm64: head.S cleanup Mark Rutland
2015-03-18 18:28 ` Ard Biesheuvel
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