linux-kernel - [PATCH v8 2/8] RISC-V: Rename relocate() and make it global

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Message-Id: <20211011081820.1135261-3-anup.patel@wdc.com>
Date:   Mon, 11 Oct 2021 13:48:14 +0530
From:   Anup Patel <anup.patel@....com>
To:     Palmer Dabbelt <palmer@...belt.com>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>
Cc:     Sandeep Tripathy <milun.tripathy@...il.com>,
        Atish Patra <atish.patra@....com>,
        Alistair Francis <Alistair.Francis@....com>,
        Liush <liush@...winnertech.com>,
        Anup Patel <anup@...infault.org>, devicetree@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Anup Patel <anup.patel@....com>
Subject: [PATCH v8 2/8] RISC-V: Rename relocate() and make it global

The low-level relocate() function enables mmu and relocates
execution to link-time addresses. We rename relocate() function
to relocate_enable_mmu() function which is more informative.

Also, the relocate_enable_mmu() function will be used in the
resume path when a CPU wakes-up from a non-retentive suspend
so we make it global symbol.

Signed-off-by: Anup Patel <anup.patel@....com>
---
 arch/riscv/kernel/head.S | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index fce5184b22c3..8ff8412db99f 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -79,7 +79,8 @@ pe_head_start:
 
 .align 2
 #ifdef CONFIG_MMU
-relocate:
+	.global relocate_enable_mmu
+relocate_enable_mmu:
 	/* Relocate return address */
 	la a1, kernel_map
 	XIP_FIXUP_OFFSET a1
@@ -174,7 +175,7 @@ secondary_start_common:
 	/* Enable virtual memory and relocate to virtual address */
 	la a0, swapper_pg_dir
 	XIP_FIXUP_OFFSET a0
-	call relocate
+	call relocate_enable_mmu
 #endif
 	call setup_trap_vector
 	tail smp_callin
@@ -311,7 +312,7 @@ clear_bss_done:
 #ifdef CONFIG_MMU
 	la a0, early_pg_dir
 	XIP_FIXUP_OFFSET a0
-	call relocate
+	call relocate_enable_mmu
 #endif /* CONFIG_MMU */
 
 	call setup_trap_vector
-- 
2.25.1