From: Alexandre Ghiti <alexghiti@rivosinc.com> To: Randy Dunlap <rdunlap@infradead.org>, Stephen Rothwell <sfr@canb.auug.org.au>, Linux Next Mailing List <linux-next@vger.kernel.org>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Frederik Haxel <haxel@fzi.de>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Subject: [PATCH] riscv: Fix build error on rv32 + XIP Date: Thu, 18 Jan 2024 22:21:20 +0100 [thread overview] Message-ID: <20240118212120.2087803-1-alexghiti@rivosinc.com> (raw) commit 66f1e6809397 ("riscv: Make XIP bootable again") restricted page offset to the sv39 page offset instead of the default sv57, which makes sense since probably the platforms that target XIP kernels do not support anything else than sv39 and we do not try to find out the largest address space supported on XIP kernels (ie set_satp_mode()). But PAGE_OFFSET_L3 is not defined for rv32, so fix the build error by restoring the previous behaviour which picks CONFIG_PAGE_OFFSET for rv32. Fixes: 66f1e6809397 ("riscv: Make XIP bootable again") Reported-by: Randy Dunlap <rdunlap@infradead.org> Closes: https://lore.kernel.org/linux-riscv/344dca85-5c48-44e1-bc64-4fa7973edd12@infradead.org/T/#u Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> --- arch/riscv/mm/init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index f533dd667a83..32cad6a65ccd 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -1060,7 +1060,11 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) kernel_map.virt_addr = KERNEL_LINK_ADDR + kernel_map.virt_offset; #ifdef CONFIG_XIP_KERNEL +#ifdef CONFIG_64BIT kernel_map.page_offset = PAGE_OFFSET_L3; +#else + kernel_map.page_offset = _AC(CONFIG_PAGE_OFFSET, UL); +#endif kernel_map.xiprom = (uintptr_t)CONFIG_XIP_PHYS_ADDR; kernel_map.xiprom_sz = (uintptr_t)(&_exiprom) - (uintptr_t)(&_xiprom); -- 2.39.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
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From: Alexandre Ghiti <alexghiti@rivosinc.com> To: Randy Dunlap <rdunlap@infradead.org>, Stephen Rothwell <sfr@canb.auug.org.au>, Linux Next Mailing List <linux-next@vger.kernel.org>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Frederik Haxel <haxel@fzi.de>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Subject: [PATCH] riscv: Fix build error on rv32 + XIP Date: Thu, 18 Jan 2024 22:21:20 +0100 [thread overview] Message-ID: <20240118212120.2087803-1-alexghiti@rivosinc.com> (raw) commit 66f1e6809397 ("riscv: Make XIP bootable again") restricted page offset to the sv39 page offset instead of the default sv57, which makes sense since probably the platforms that target XIP kernels do not support anything else than sv39 and we do not try to find out the largest address space supported on XIP kernels (ie set_satp_mode()). But PAGE_OFFSET_L3 is not defined for rv32, so fix the build error by restoring the previous behaviour which picks CONFIG_PAGE_OFFSET for rv32. Fixes: 66f1e6809397 ("riscv: Make XIP bootable again") Reported-by: Randy Dunlap <rdunlap@infradead.org> Closes: https://lore.kernel.org/linux-riscv/344dca85-5c48-44e1-bc64-4fa7973edd12@infradead.org/T/#u Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> --- arch/riscv/mm/init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index f533dd667a83..32cad6a65ccd 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -1060,7 +1060,11 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) kernel_map.virt_addr = KERNEL_LINK_ADDR + kernel_map.virt_offset; #ifdef CONFIG_XIP_KERNEL +#ifdef CONFIG_64BIT kernel_map.page_offset = PAGE_OFFSET_L3; +#else + kernel_map.page_offset = _AC(CONFIG_PAGE_OFFSET, UL); +#endif kernel_map.xiprom = (uintptr_t)CONFIG_XIP_PHYS_ADDR; kernel_map.xiprom_sz = (uintptr_t)(&_exiprom) - (uintptr_t)(&_xiprom); -- 2.39.2
next reply other threads:[~2024-01-18 21:21 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-18 21:21 Alexandre Ghiti [this message] 2024-01-18 21:21 ` [PATCH] riscv: Fix build error on rv32 + XIP Alexandre Ghiti 2024-01-18 21:27 ` Randy Dunlap 2024-01-18 21:27 ` Randy Dunlap 2024-01-20 21:09 ` patchwork-bot+linux-riscv 2024-01-20 21:09 ` patchwork-bot+linux-riscv
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