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Message-Id: <20250103-la-earlycon-fixed-map-v2-1-b328ec2564f7@flygoat.com> Date: Fri, 03 Jan 2025 11:36:51 +0000 From: Jiaxun Yang <jiaxun.yang@...goat.com> To: Huacai Chen <chenhuacai@...nel.org>, WANG Xuerui <kernel@...0n.name> Cc: loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org, Jiaxun Yang <jiaxun.yang@...goat.com> Subject: [PATCH v2] loongarch: Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled When ARCH_IOREMAP is enabled, we are using always accessible DMW for ioremap. It makes no sense to create a dedicated mapping for earlycon given that we can access the region via DMW. Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is selected. This can ease debugging for early mapping issues. Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com> --- Changes in v2: - Drop changes to fixedmap.h - Link to v1: https://lore.kernel.org/r/20250102-la-earlycon-fixed-map-v1-1-23fe3a6681c4@flygoat.com --- arch/loongarch/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 1c4d13aa677e2e04b9791882fba7523f93d6a69d..ad8a8cf75343799ea626be52f521fa75e7cbe07b 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -246,7 +246,7 @@ config MACH_LOONGSON64 def_bool 64BIT config FIX_EARLYCON_MEM - def_bool y + def_bool !ARCH_IOREMAP config PGTABLE_2LEVEL bool --- base-commit: 8155b4ef3466f0e289e8fcc9e6e62f3f4dceeac2 change-id: 20250102-la-earlycon-fixed-map-d6a48bd5b831 Best regards, -- Jiaxun Yang <jiaxun.yang@...goat.com>
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