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From: Heiko Stuebner <heiko@sntech.de>
To: palmer@dabbelt.com, paul.walmsley@sifive.com, aou@eecs.berkeley.edu
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	wefu@redhat.com, liush@allwinnertech.com, guoren@kernel.org,
	atishp@atishpatra.org, anup@brainfault.org, drew@beagleboard.org,
	hch@lst.de, arnd@arndb.de, wens@csie.org, maxime@cerno.tech,
	gfavor@ventanamicro.com, andrea.mondelli@huawei.com,
	behrensj@mit.edu, xinhaoqu@huawei.com, mick@ics.forth.gr,
	allen.baum@esperantotech.com, jscheid@ventanamicro.com,
	rtrauben@gmail.com, samuel@sholland.org, cmuellner@linux.com,
	philipp.tomsich@vrull.eu, Heiko Stuebner <heiko@sntech.de>
Subject: [PATCH 07/12] riscv: move boot alternatives to after fill_hwcap
Date: Wed, 11 May 2022 21:29:16 +0200	[thread overview]
Message-ID: <20220511192921.2223629-8-heiko@sntech.de> (raw)
In-Reply-To: <20220511192921.2223629-1-heiko@sntech.de>

Move the application of boot alternatives to after the hw-capabilities
are populated. This allows to check for available extensions when
determining which alternatives to apply and also makes it actually
work if CONFIG_SMP is disabled for whatever reason.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Guo Ren <guoren@kernel.org>
---
 arch/riscv/kernel/setup.c   | 2 ++
 arch/riscv/kernel/smpboot.c | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index f4f4a64bc3a0..9162e9a824d2 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -21,6 +21,7 @@
 #include <linux/efi.h>
 #include <linux/crash_dump.h>
 
+#include <asm/alternative.h>
 #include <asm/cpu_ops.h>
 #include <asm/early_ioremap.h>
 #include <asm/pgtable.h>
@@ -295,6 +296,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 	riscv_fill_hwcap();
+	apply_boot_alternatives();
 }
 
 static int __init topology_init(void)
diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c
index a6d13dca1403..f1e4948a4b52 100644
--- a/arch/riscv/kernel/smpboot.c
+++ b/arch/riscv/kernel/smpboot.c
@@ -32,7 +32,6 @@
 #include <asm/sections.h>
 #include <asm/sbi.h>
 #include <asm/smp.h>
-#include <asm/alternative.h>
 
 #include "head.h"
 
@@ -41,7 +40,6 @@ static DECLARE_COMPLETION(cpu_running);
 void __init smp_prepare_boot_cpu(void)
 {
 	init_cpu_topology();
-	apply_boot_alternatives();
 }
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
-- 
2.35.1


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  parent reply	other threads:[~2022-05-11 19:29 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-11 19:29 [PATCH v10 00/12] riscv: support for Svpbmt and D1 memory types Heiko Stuebner
2022-05-11 19:29 ` [PATCH 01/12] riscv: integrate alternatives better into the main architecture Heiko Stuebner
2022-05-16  6:01   ` Christoph Hellwig
2022-05-16  6:45   ` Guo Ren
2022-05-11 19:29 ` [PATCH 02/12] riscv: allow different stages with alternatives Heiko Stuebner
2022-05-16  6:01   ` Christoph Hellwig
2022-05-16  6:51   ` Guo Ren
2022-05-11 19:29 ` [PATCH 03/12] riscv: implement module alternatives Heiko Stuebner
2022-05-16  6:02   ` Christoph Hellwig
2022-05-16  6:54   ` Guo Ren
2022-05-11 19:29 ` [PATCH 04/12] riscv: implement ALTERNATIVE_2 macro Heiko Stuebner
2022-05-16  6:03   ` Christoph Hellwig
2022-05-16  6:54   ` Guo Ren
2022-05-11 19:29 ` [PATCH 05/12] riscv: extend concatenated alternatives-lines to the same length Heiko Stuebner
2022-05-16  6:03   ` Christoph Hellwig
2022-05-16  6:55   ` Guo Ren
2022-05-11 19:29 ` [PATCH 06/12] riscv: prevent compressed instructions in alternatives Heiko Stuebner
2022-05-16  6:04   ` Christoph Hellwig
2022-05-16  6:55   ` Guo Ren
2022-05-11 19:29 ` Heiko Stuebner [this message]
2022-05-11 19:29 ` [PATCH 08/12] riscv: Fix accessing pfn bits in PTEs for non-32bit variants Heiko Stuebner
2022-05-16  6:04   ` Christoph Hellwig
2022-05-16  6:55   ` Guo Ren
2022-05-23 14:03   ` Alexandre Ghiti
2022-05-25 15:22     ` Heiko Stübner
2022-05-28  8:15       ` Alexandre Ghiti
2022-05-11 19:29 ` [PATCH 09/12] riscv: add RISC-V Svpbmt extension support Heiko Stuebner
2022-05-16  6:10   ` Christoph Hellwig
2022-05-16  9:09     ` Philipp Tomsich
2022-05-16 10:30       ` Heiko Stübner
2022-05-11 19:29 ` [PATCH 10/12] riscv: remove FIXMAP_PAGE_IO and fall back to its default value Heiko Stuebner
2022-05-11 19:29 ` [PATCH 11/12] riscv: don't use global static vars to store alternative data Heiko Stuebner
2022-05-16  6:15   ` Christoph Hellwig
2022-05-11 19:29 ` [PATCH 12/12] riscv: add memory-type errata for T-Head Heiko Stuebner
2022-05-13 13:37   ` Guo Ren
2022-05-13  3:32 ` [PATCH v10 00/12] riscv: support for Svpbmt and D1 memory types Palmer Dabbelt
2022-05-13 21:41   ` Heiko Stuebner

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