linux-kernel - [PATCH v3 04/10] riscv: Add fixmap indices for GHES IRQ and SSE contexts

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Message-ID: <20260109090224.3105465-5-himanshu.chauhan@oss.qualcomm.com>
Date: Fri,  9 Jan 2026 14:32:18 +0530
From: Himanshu Chauhan <himanshu.chauhan@....qualcomm.com>
To: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-efi@...r.kernel.org,
        acpica-devel@...ts.linux.dev, paul.walmsley@...ive.com,
        palmer@...belt.com, lenb@...nel.org, james.morse@....com,
        tony.luck@...el.com, ardb@...nel.org, conor@...nel.org,
        cleger@...osinc.com, robert.moore@...el.com, sunilvl@....qualcomm.com,
        anup.patel@....qualcomm.com
Cc: Himanshu Chauhan <himanshu.chauhan@....qualcomm.com>
Subject: [PATCH v3 04/10] riscv: Add fixmap indices for GHES IRQ and SSE contexts

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 <himanshu.chauhan@....qualcomm.com>
Reviewed-By: Clément Léger <cleger@...osinc.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