Hi Atish, First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9f29bd8b2e7132b409178d1367dae1813017bd0e commit: e557793799c5a8406afb08aa170509619f7eac36 RISC-V: Fix maximum allowed phsyical memory for RV32 date: 6 days ago config: riscv-randconfig-r002-20210122 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bd3a387ee76f58caa0d7901f3f84e9bb3d006f27) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e557793799c5a8406afb08aa170509619f7eac36 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e557793799c5a8406afb08aa170509619f7eac36 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): arch/riscv/kernel/head.S: Assembler messages: >> arch/riscv/kernel/head.S:72: Error: illegal operands `li >> a1,CONFIG_PAGE_OFFSET' clang-12: error: assembler command failed with exit code 1 (use -v to see invocation) -- In file included from arch/riscv/kernel/soc.c:7: In file included from include/linux/pgtable.h:6: In file included from arch/riscv/include/asm/pgtable.h:64: >> arch/riscv/include/asm/pgtable-64.h:70:9: error: use of undeclared >> identifier 'UL' return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT); ^ include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) ^ arch/riscv/include/asm/pgtable.h:26:27: note: expanded from macro 'VMALLOC_START' #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/soc.c:7: In file included from include/linux/pgtable.h:6: In file included from arch/riscv/include/asm/pgtable.h:64: >> arch/riscv/include/asm/pgtable-64.h:70:9: error: use of undeclared >> identifier 'UL' include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:24:27: note: expanded from macro 'VMALLOC_SIZE' #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) ^ arch/riscv/include/asm/page.h:36:26: note: expanded from macro 'KERN_VIRT_SIZE' #define KERN_VIRT_SIZE (-PAGE_OFFSET) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/soc.c:7: In file included from include/linux/pgtable.h:6: >> arch/riscv/include/asm/pgtable.h:181:9: error: use of undeclared identifier >> 'UL' return pfn_to_page(pmd_val(pmd) >> _PAGE_PFN_SHIFT); ^ include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) ^ arch/riscv/include/asm/pgtable.h:26:27: note: expanded from macro 'VMALLOC_START' #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/soc.c:7: In file included from include/linux/pgtable.h:6: >> arch/riscv/include/asm/pgtable.h:181:9: error: use of undeclared identifier >> 'UL' include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:24:27: note: expanded from macro 'VMALLOC_SIZE' #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) ^ arch/riscv/include/asm/page.h:36:26: note: expanded from macro 'KERN_VIRT_SIZE' #define KERN_VIRT_SIZE (-PAGE_OFFSET) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ 4 errors generated. -- In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:15: In file included from include/linux/pgtable.h:6: In file included from arch/riscv/include/asm/pgtable.h:64: >> arch/riscv/include/asm/pgtable-64.h:70:9: error: use of undeclared >> identifier 'UL' return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT); ^ include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) ^ arch/riscv/include/asm/pgtable.h:26:27: note: expanded from macro 'VMALLOC_START' #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:15: In file included from include/linux/pgtable.h:6: In file included from arch/riscv/include/asm/pgtable.h:64: >> arch/riscv/include/asm/pgtable-64.h:70:9: error: use of undeclared >> identifier 'UL' include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:24:27: note: expanded from macro 'VMALLOC_SIZE' #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) ^ arch/riscv/include/asm/page.h:36:26: note: expanded from macro 'KERN_VIRT_SIZE' #define KERN_VIRT_SIZE (-PAGE_OFFSET) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:15: In file included from include/linux/pgtable.h:6: >> arch/riscv/include/asm/pgtable.h:181:9: error: use of undeclared identifier >> 'UL' return pfn_to_page(pmd_val(pmd) >> _PAGE_PFN_SHIFT); ^ include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) ^ arch/riscv/include/asm/pgtable.h:26:27: note: expanded from macro 'VMALLOC_START' #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:15: In file included from include/linux/pgtable.h:6: >> arch/riscv/include/asm/pgtable.h:181:9: error: use of undeclared identifier >> 'UL' include/asm-generic/memory_model.h:82:21: note: expanded from macro 'pfn_to_page' #define pfn_to_page __pfn_to_page ^ include/asm-generic/memory_model.h:54:29: note: expanded from macro '__pfn_to_page' #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^ arch/riscv/include/asm/pgtable.h:47:34: note: expanded from macro 'vmemmap' #define vmemmap ((struct page *)VMEMMAP_START) ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:24:27: note: expanded from macro 'VMALLOC_SIZE' #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) ^ arch/riscv/include/asm/page.h:36:26: note: expanded from macro 'KERN_VIRT_SIZE' #define KERN_VIRT_SIZE (-PAGE_OFFSET) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:149: >> include/asm-generic/io.h:556:9: error: use of undeclared identifier 'UL' return inb(addr); ^ arch/riscv/include/asm/io.h:55:65: note: expanded from macro 'inb' #define inb(c) ({ u8 __v; __io_pbr(); __v = readb_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ^ arch/riscv/include/asm/io.h:30:38: note: expanded from macro 'PCI_IOBASE' #define PCI_IOBASE ((void __iomem *)PCI_IO_START) ^ arch/riscv/include/asm/pgtable.h:51:27: note: expanded from macro 'PCI_IO_START' #define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) ^ arch/riscv/include/asm/pgtable.h:26:27: note: expanded from macro 'VMALLOC_START' #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:149: >> include/asm-generic/io.h:556:9: error: use of undeclared identifier 'UL' arch/riscv/include/asm/io.h:55:65: note: expanded from macro 'inb' #define inb(c) ({ u8 __v; __io_pbr(); __v = readb_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ^ arch/riscv/include/asm/io.h:30:38: note: expanded from macro 'PCI_IOBASE' #define PCI_IOBASE ((void __iomem *)PCI_IO_START) ^ arch/riscv/include/asm/pgtable.h:51:27: note: expanded from macro 'PCI_IO_START' #define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:24:27: note: expanded from macro 'VMALLOC_SIZE' #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) ^ arch/riscv/include/asm/page.h:36:26: note: expanded from macro 'KERN_VIRT_SIZE' #define KERN_VIRT_SIZE (-PAGE_OFFSET) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:149: include/asm-generic/io.h:564:9: error: use of undeclared identifier 'UL' return inw(addr); ^ arch/riscv/include/asm/io.h:56:65: note: expanded from macro 'inw' #define inw(c) ({ u16 __v; __io_pbr(); __v = readw_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ^ arch/riscv/include/asm/io.h:30:38: note: expanded from macro 'PCI_IOBASE' #define PCI_IOBASE ((void __iomem *)PCI_IO_START) ^ arch/riscv/include/asm/pgtable.h:51:27: note: expanded from macro 'PCI_IO_START' #define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) ^ arch/riscv/include/asm/pgtable.h:26:27: note: expanded from macro 'VMALLOC_START' #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:149: include/asm-generic/io.h:564:9: error: use of undeclared identifier 'UL' arch/riscv/include/asm/io.h:56:65: note: expanded from macro 'inw' #define inw(c) ({ u16 __v; __io_pbr(); __v = readw_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ^ arch/riscv/include/asm/io.h:30:38: note: expanded from macro 'PCI_IOBASE' #define PCI_IOBASE ((void __iomem *)PCI_IO_START) ^ arch/riscv/include/asm/pgtable.h:51:27: note: expanded from macro 'PCI_IO_START' #define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:24:27: note: expanded from macro 'VMALLOC_SIZE' #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) ^ arch/riscv/include/asm/page.h:36:26: note: expanded from macro 'KERN_VIRT_SIZE' #define KERN_VIRT_SIZE (-PAGE_OFFSET) ^ arch/riscv/include/asm/page.h:34:46: note: expanded from macro 'PAGE_OFFSET' #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) ^ In file included from arch/riscv/kernel/irq.c:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:149: include/asm-generic/io.h:572:9: error: use of undeclared identifier 'UL' return inl(addr); ^ arch/riscv/include/asm/io.h:57:65: note: expanded from macro 'inl' #define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ^ arch/riscv/include/asm/io.h:30:38: note: expanded from macro 'PCI_IOBASE' #define PCI_IOBASE ((void __iomem *)PCI_IO_START) ^ arch/riscv/include/asm/pgtable.h:51:27: note: expanded from macro 'PCI_IO_START' #define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/riscv/include/asm/pgtable.h:41:24: note: expanded from macro 'VMEMMAP_START' #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) .. vim +72 arch/riscv/kernel/head.S 0f327f2aaad6a873 Atish Patra 2019-06-06 67 e011995e826f85fb Atish Patra 2020-03-17 68 .align 2 e011995e826f85fb Atish Patra 2020-03-17 69 #ifdef CONFIG_MMU e011995e826f85fb Atish Patra 2020-03-17 70 relocate: e011995e826f85fb Atish Patra 2020-03-17 71 /* Relocate return address */ e011995e826f85fb Atish Patra 2020-03-17 @72 li a1, PAGE_OFFSET e011995e826f85fb Atish Patra 2020-03-17 73 la a2, _start e011995e826f85fb Atish Patra 2020-03-17 74 sub a1, a1, a2 e011995e826f85fb Atish Patra 2020-03-17 75 add ra, ra, a1 e011995e826f85fb Atish Patra 2020-03-17 76 e011995e826f85fb Atish Patra 2020-03-17 77 /* Point stvec to virtual address of intruction after satp write */ e011995e826f85fb Atish Patra 2020-03-17 78 la a2, 1f e011995e826f85fb Atish Patra 2020-03-17 79 add a2, a2, a1 e011995e826f85fb Atish Patra 2020-03-17 80 csrw CSR_TVEC, a2 e011995e826f85fb Atish Patra 2020-03-17 81 e011995e826f85fb Atish Patra 2020-03-17 82 /* Compute satp for kernel page tables, but don't load it yet */ e011995e826f85fb Atish Patra 2020-03-17 83 srl a2, a0, PAGE_SHIFT e011995e826f85fb Atish Patra 2020-03-17 84 li a1, SATP_MODE e011995e826f85fb Atish Patra 2020-03-17 85 or a2, a2, a1 e011995e826f85fb Atish Patra 2020-03-17 86 e011995e826f85fb Atish Patra 2020-03-17 87 /* e011995e826f85fb Atish Patra 2020-03-17 88 * Load trampoline page directory, which will cause us to trap to e011995e826f85fb Atish Patra 2020-03-17 89 * stvec if VA != PA, or simply fall through if VA == PA. We need a e011995e826f85fb Atish Patra 2020-03-17 90 * full fence here because setup_vm() just wrote these PTEs and we need e011995e826f85fb Atish Patra 2020-03-17 91 * to ensure the new translations are in use. e011995e826f85fb Atish Patra 2020-03-17 92 */ e011995e826f85fb Atish Patra 2020-03-17 93 la a0, trampoline_pg_dir e011995e826f85fb Atish Patra 2020-03-17 94 srl a0, a0, PAGE_SHIFT e011995e826f85fb Atish Patra 2020-03-17 95 or a0, a0, a1 e011995e826f85fb Atish Patra 2020-03-17 96 sfence.vma e011995e826f85fb Atish Patra 2020-03-17 97 csrw CSR_SATP, a0 e011995e826f85fb Atish Patra 2020-03-17 98 .align 2 e011995e826f85fb Atish Patra 2020-03-17 99 1: 76d4467a97bd8c4b Qiu Wenbo 2020-08-13 100 /* Set trap vector to spin forever to help debug */ 76d4467a97bd8c4b Qiu Wenbo 2020-08-13 101 la a0, .Lsecondary_park e011995e826f85fb Atish Patra 2020-03-17 102 csrw CSR_TVEC, a0 e011995e826f85fb Atish Patra 2020-03-17 103 e011995e826f85fb Atish Patra 2020-03-17 104 /* Reload the global pointer */ e011995e826f85fb Atish Patra 2020-03-17 105 .option push e011995e826f85fb Atish Patra 2020-03-17 106 .option norelax e011995e826f85fb Atish Patra 2020-03-17 107 la gp, __global_pointer$ e011995e826f85fb Atish Patra 2020-03-17 108 .option pop e011995e826f85fb Atish Patra 2020-03-17 109 e011995e826f85fb Atish Patra 2020-03-17 110 /* e011995e826f85fb Atish Patra 2020-03-17 111 * Switch to kernel page tables. A full fence is necessary in order to e011995e826f85fb Atish Patra 2020-03-17 112 * avoid using the trampoline translations, which are only correct for e011995e826f85fb Atish Patra 2020-03-17 113 * the first superpage. Fetching the fence is guarnteed to work e011995e826f85fb Atish Patra 2020-03-17 114 * because that first superpage is translated the same way. e011995e826f85fb Atish Patra 2020-03-17 115 */ e011995e826f85fb Atish Patra 2020-03-17 116 csrw CSR_SATP, a2 e011995e826f85fb Atish Patra 2020-03-17 117 sfence.vma e011995e826f85fb Atish Patra 2020-03-17 118 e011995e826f85fb Atish Patra 2020-03-17 119 ret e011995e826f85fb Atish Patra 2020-03-17 120 #endif /* CONFIG_MMU */ e011995e826f85fb Atish Patra 2020-03-17 121 #ifdef CONFIG_SMP cfafe260137418d0 Atish Patra 2020-03-17 122 .global secondary_start_sbi cfafe260137418d0 Atish Patra 2020-03-17 123 secondary_start_sbi: cfafe260137418d0 Atish Patra 2020-03-17 124 /* Mask all interrupts */ cfafe260137418d0 Atish Patra 2020-03-17 125 csrw CSR_IE, zero cfafe260137418d0 Atish Patra 2020-03-17 126 csrw CSR_IP, zero cfafe260137418d0 Atish Patra 2020-03-17 127 cfafe260137418d0 Atish Patra 2020-03-17 128 /* Load the global pointer */ cfafe260137418d0 Atish Patra 2020-03-17 129 .option push cfafe260137418d0 Atish Patra 2020-03-17 130 .option norelax cfafe260137418d0 Atish Patra 2020-03-17 131 la gp, __global_pointer$ cfafe260137418d0 Atish Patra 2020-03-17 132 .option pop cfafe260137418d0 Atish Patra 2020-03-17 133 cfafe260137418d0 Atish Patra 2020-03-17 134 /* cfafe260137418d0 Atish Patra 2020-03-17 135 * Disable FPU to detect illegal usage of cfafe260137418d0 Atish Patra 2020-03-17 136 * floating point in kernel space cfafe260137418d0 Atish Patra 2020-03-17 137 */ cfafe260137418d0 Atish Patra 2020-03-17 138 li t0, SR_FS cfafe260137418d0 Atish Patra 2020-03-17 139 csrc CSR_STATUS, t0 cfafe260137418d0 Atish Patra 2020-03-17 140 e011995e826f85fb Atish Patra 2020-03-17 141 /* Set trap vector to spin forever to help debug */ e011995e826f85fb Atish Patra 2020-03-17 142 la a3, .Lsecondary_park e011995e826f85fb Atish Patra 2020-03-17 143 csrw CSR_TVEC, a3 e011995e826f85fb Atish Patra 2020-03-17 144 e011995e826f85fb Atish Patra 2020-03-17 145 slli a3, a0, LGREG cfafe260137418d0 Atish Patra 2020-03-17 146 la a4, __cpu_up_stack_pointer cfafe260137418d0 Atish Patra 2020-03-17 147 la a5, __cpu_up_task_pointer cfafe260137418d0 Atish Patra 2020-03-17 148 add a4, a3, a4 cfafe260137418d0 Atish Patra 2020-03-17 149 add a5, a3, a5 cfafe260137418d0 Atish Patra 2020-03-17 150 REG_L sp, (a4) cfafe260137418d0 Atish Patra 2020-03-17 151 REG_L tp, (a5) cfafe260137418d0 Atish Patra 2020-03-17 152 e011995e826f85fb Atish Patra 2020-03-17 153 .global secondary_start_common e011995e826f85fb Atish Patra 2020-03-17 154 secondary_start_common: e011995e826f85fb Atish Patra 2020-03-17 155 :::::: The code at line 72 was first introduced by commit :::::: e011995e826f85fbe55dc7d4ce649461163d1052 RISC-V: Move relocate and few other functions out of __init :::::: TO: Atish Patra <atish.pa...@wdc.com> :::::: CC: Palmer Dabbelt <palmerdabb...@google.com> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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