[v2] Add RAS support for RISC-V architecture

[RFC PATCH v2 04/10] riscv: Add fixmap indices for GHES IRQ and SSE contexts

Posted by Himanshu Chauhan 5 months, 1 week ago

GHES error handling requires fixmap entries for IRQ notifications.
Add fixmap indices for IRQ, SSE Low and High priority notifications.

Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
---
 arch/riscv/include/asm/fixmap.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/riscv/include/asm/fixmap.h b/arch/riscv/include/asm/fixmap.h
index 0a55099bb734..e874fd952286 100644
--- a/arch/riscv/include/asm/fixmap.h
+++ b/arch/riscv/include/asm/fixmap.h
@@ -38,6 +38,14 @@ enum fixed_addresses {
 	FIX_TEXT_POKE0,
 	FIX_EARLYCON_MEM_BASE,
 
+#ifdef CONFIG_ACPI_APEI_GHES
+	/* Used for GHES mapping from assorted contexts */
+	FIX_APEI_GHES_IRQ,
+#ifdef CONFIG_RISCV_SBI_SSE
+	FIX_APEI_GHES_SSE_LOW_PRIORITY,
+	FIX_APEI_GHES_SSE_HIGH_PRIORITY,
+#endif /* CONFIG_RISCV_SBI_SSE */
+#endif /* CONFIG_ACPI_APEI_GHES */
 	__end_of_permanent_fixed_addresses,
 	/*
 	 * Temporary boot-time mappings, used by early_ioremap(),
-- 
2.43.0

Re: [RFC PATCH v2 04/10] riscv: Add fixmap indices for GHES IRQ and SSE contexts

Posted by Clément Léger 5 months ago


On 10/29/25 12:26, Himanshu Chauhan wrote:
> GHES error handling requires fixmap entries for IRQ notifications.
> Add fixmap indices for IRQ, SSE Low and High priority notifications.
> 
> Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
> ---
>  arch/riscv/include/asm/fixmap.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/riscv/include/asm/fixmap.h b/arch/riscv/include/asm/fixmap.h
> index 0a55099bb734..e874fd952286 100644
> --- a/arch/riscv/include/asm/fixmap.h
> +++ b/arch/riscv/include/asm/fixmap.h
> @@ -38,6 +38,14 @@ enum fixed_addresses {
>  	FIX_TEXT_POKE0,
>  	FIX_EARLYCON_MEM_BASE,
>  
> +#ifdef CONFIG_ACPI_APEI_GHES
> +	/* Used for GHES mapping from assorted contexts */
> +	FIX_APEI_GHES_IRQ,
> +#ifdef CONFIG_RISCV_SBI_SSE
> +	FIX_APEI_GHES_SSE_LOW_PRIORITY,
> +	FIX_APEI_GHES_SSE_HIGH_PRIORITY,
> +#endif /* CONFIG_RISCV_SBI_SSE */
> +#endif /* CONFIG_ACPI_APEI_GHES */
>  	__end_of_permanent_fixed_addresses,
>  	/*
>  	 * Temporary boot-time mappings, used by early_ioremap(),

Hi Himanshu,

Reviewed-By: Clément Léger <cleger@rivosinc.com>

Thanks,

Clément