From: Serge Semin <fancer.lancer@gmail.com>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Andrew Morton <akpm@linux-foundation.org>,
Mike Rapoport <rppt@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Tiezhu Yang <yangtiezhu@loongson.cn>,
Huacai Chen <chenhuacai@kernel.org>,
Yinglu Yang <yangyinglu@loongson.cn>,
Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Serge Semin <fancer.lancer@gmail.com>,
Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
Arnd Bergmann <arnd@arndb.de>,
Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>,
Aleksandar Rikalo <arikalo@gmail.com>,
Dragan Mladjenovic <dragan.mladjenovic@syrmia.com>,
Chao-ying Fu <cfu@wavecomp.com>, Marc Zyngier <maz@kernel.org>,
linux-mips@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/7] mips: dmi: Fix early remap on MIPS32
Date: Wed, 22 Nov 2023 21:23:59 +0300 [thread overview]
Message-ID: <20231122182419.30633-2-fancer.lancer@gmail.com> (raw)
In-Reply-To: <20231122182419.30633-1-fancer.lancer@gmail.com>
dmi_early_remap() has been defined as ioremap_cache() which on MIPS32 gets
to be converted to the VM-based mapping. DMI early remapping is performed
at the setup_arch() stage with no VM available. So calling the
dmi_early_remap() for MIPS32 causes the system to crash at the early boot
time. Fix that by converting dmi_early_remap() to the uncached remapping
which is always available on both 32 and 64-bits MIPS systems.
Fixes: be8fa1cb444c ("MIPS: Add support for Desktop Management Interface (DMI)")
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
---
arch/mips/include/asm/dmi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/dmi.h b/arch/mips/include/asm/dmi.h
index 27415a288adf..525aad1572d1 100644
--- a/arch/mips/include/asm/dmi.h
+++ b/arch/mips/include/asm/dmi.h
@@ -5,7 +5,7 @@
#include <linux/io.h>
#include <linux/memblock.h>
-#define dmi_early_remap(x, l) ioremap_cache(x, l)
+#define dmi_early_remap(x, l) ioremap_uc(x, l)
#define dmi_early_unmap(x, l) iounmap(x)
#define dmi_remap(x, l) ioremap_cache(x, l)
#define dmi_unmap(x) iounmap(x)
--
2.42.1
next prev parent reply other threads:[~2023-11-22 18:24 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-22 18:23 [PATCH 0/7] MIPS: mm: Fix some memory-related issues Serge Semin
2023-11-22 18:23 ` Serge Semin [this message]
2023-11-22 19:35 ` [PATCH 1/7] mips: dmi: Fix early remap on MIPS32 Arnd Bergmann
2023-11-23 9:32 ` Serge Semin
2023-11-23 12:13 ` Jiaxun Yang
2023-11-23 12:29 ` Thomas Bogendoerfer
2023-11-23 15:07 ` Jiaxun Yang
2023-11-23 16:07 ` Thomas Bogendoerfer
2023-11-23 17:33 ` Jiaxun Yang
2023-11-24 18:52 ` Serge Semin
2023-11-24 22:03 ` Jiaxun Yang
2023-11-27 16:23 ` Serge Semin
2023-11-27 21:08 ` Jiaxun Yang
2023-11-28 11:34 ` Serge Semin
2023-11-28 15:46 ` Jiaxun Yang
2023-11-30 19:16 ` Serge Semin
2023-12-01 0:13 ` Jiaxun Yang
2023-12-01 14:54 ` Serge Semin
2023-12-01 15:10 ` Jiaxun Yang
2023-12-01 18:26 ` Serge Semin
2023-11-28 12:41 ` Arnd Bergmann
2023-11-28 13:52 ` Serge Semin
2023-11-28 21:59 ` Arnd Bergmann
2023-11-30 19:26 ` Serge Semin
2023-11-24 22:34 ` Jiaxun Yang
2023-11-22 18:24 ` [PATCH 2/7] mips: Fix incorrect max_low_pfn adjustment Serge Semin
2023-11-22 18:24 ` [PATCH 3/7] mips: Fix max_mapnr being uninitialized on early stages Serge Semin
2023-11-22 18:24 ` [PATCH 4/7] mips: Optimize max_mapnr init procedure Serge Semin
2023-11-22 18:24 ` [PATCH 5/7] mm/mm_init.c: Extend init unavailable range doc info Serge Semin
2023-11-23 10:18 ` Mike Rapoport
2023-11-23 10:42 ` Serge Semin
2023-11-24 8:19 ` Mike Rapoport
2023-11-24 11:18 ` Serge Semin
2023-11-28 7:13 ` Mike Rapoport
2023-11-28 10:51 ` Serge Semin
2023-11-29 6:14 ` Mike Rapoport
2023-11-30 13:30 ` Serge Semin
2023-11-22 18:24 ` [PATCH 6/7] mm/mm_init.c: Append '\n' to the unavailable ranges log-message Serge Semin
2023-11-23 10:06 ` Mike Rapoport
2023-11-22 18:24 ` [PATCH 7/7] mips: Set dump-stack arch description Serge Semin
2023-11-22 18:29 ` [PATCH 0/7] MIPS: mm: Fix some memory-related issues Andrew Morton
2023-11-23 10:12 ` Serge Semin
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