diff mbox series

[v9,07/12] riscv: move boot alternatives to after fill_hwcap

Message ID 20220413030307.133807-8-heiko@sntech.de (mailing list archive)
State New, archived
Headers show
Series riscv: support for Svpbmt and D1 memory types | expand

Commit Message

Heiko Stübner April 13, 2022, 3:03 a.m. UTC
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>
---
 arch/riscv/kernel/setup.c   | 2 ++
 arch/riscv/kernel/smpboot.c | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

Comments

Guo Ren April 13, 2022, 5:46 a.m. UTC | #1
Reviewed-by: Guo Ren <guoren@kernel.org>

On Wed, Apr 13, 2022 at 11:03 AM Heiko Stuebner <heiko@sntech.de> wrote:
>
> 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>
> ---
>  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
>
Philipp Tomsich April 13, 2022, 9:15 a.m. UTC | #2
On Wed, 13 Apr 2022 at 05:03, Heiko Stuebner <heiko@sntech.de> wrote:
>
> 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>
diff mbox series

Patch

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)