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From: Anup Patel <anup.patel@wdc.com>
To: Palmer Dabbelt <palmer@dabbelt.com>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Pavel Machek <pavel@ucw.cz>, Rob Herring <robh+dt@kernel.org>
Cc: Sandeep Tripathy <milun.tripathy@gmail.com>,
	Atish Patra <atish.patra@wdc.com>,
	Alistair Francis <Alistair.Francis@wdc.com>,
	Liush <liush@allwinnertech.com>, Anup Patel <anup@brainfault.org>,
	devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Anup Patel <anup.patel@wdc.com>
Subject: [RFC PATCH v4 2/8] RISC-V: Rename relocate() and make it global
Date: Mon, 17 May 2021 18:38:17 +0530	[thread overview]
Message-ID: <20210517130823.796963-3-anup.patel@wdc.com> (raw)
In-Reply-To: <20210517130823.796963-1-anup.patel@wdc.com>

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@wdc.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 89cc58ab52b4..a44c0bc9c2f3 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_virt_addr
 	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


  parent reply	other threads:[~2021-05-17 13:09 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-17 13:08 [RFC PATCH v4 0/8] RISC-V CPU Idle Support Anup Patel
2021-05-17 13:08 ` [RFC PATCH v4 1/8] RISC-V: Enable CPU_IDLE drivers Anup Patel
2021-05-17 13:08 ` Anup Patel [this message]
2021-05-17 13:08 ` [RFC PATCH v4 3/8] RISC-V: Add arch functions for non-retentive suspend entry/exit Anup Patel
2021-05-17 13:08 ` [RFC PATCH v4 4/8] RISC-V: Add SBI HSM suspend related defines Anup Patel
2021-05-17 13:08 ` [RFC PATCH v4 5/8] cpuidle: Factor-out power domain related code from PSCI domain driver Anup Patel
2021-05-24 18:01   ` Ulf Hansson
2021-05-25  5:39     ` Anup Patel
2021-05-25  9:05       ` Ulf Hansson
2021-05-28  9:26         ` Ulf Hansson
2021-05-17 13:08 ` [RFC PATCH v4 6/8] cpuidle: Add RISC-V SBI CPU idle driver Anup Patel
2021-05-17 13:08 ` [RFC PATCH v4 7/8] dt-bindings: Add common bindings for ARM and RISC-V idle states Anup Patel
2021-05-17 13:08 ` [RFC PATCH v4 8/8] RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine Anup Patel

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