diff options
Diffstat (limited to 'arch/parisc/kernel')
36 files changed, 380 insertions, 420 deletions
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile index fc0df5c44468..c232266b517c 100644 --- a/arch/parisc/kernel/Makefile +++ b/arch/parisc/kernel/Makefile @@ -14,10 +14,11 @@ obj-y := cache.o pacache.o setup.o pdt.o traps.o time.o irq.o \ ifdef CONFIG_FUNCTION_TRACER # Do not profile debug and lowlevel utilities -CFLAGS_REMOVE_ftrace.o = -pg -CFLAGS_REMOVE_cache.o = -pg -CFLAGS_REMOVE_perf.o = -pg -CFLAGS_REMOVE_unwind.o = -pg +CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_cache.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_perf.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_unwind.o = $(CC_FLAGS_FTRACE) +CFLAGS_REMOVE_patch.o = $(CC_FLAGS_FTRACE) endif obj-$(CONFIG_SMP) += smp.o diff --git a/arch/parisc/kernel/alternative.c b/arch/parisc/kernel/alternative.c index bf2274e01a96..ca1f5ca0540a 100644 --- a/arch/parisc/kernel/alternative.c +++ b/arch/parisc/kernel/alternative.c @@ -56,7 +56,8 @@ void __init_or_module apply_alternatives(struct alt_instr *start, * time IO-PDIR is changed in Ike/Astro. */ if ((cond & ALT_COND_NO_IOC_FDC) && - (boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC)) + ((boot_cpu_data.cpu_type <= pcxw_) || + (boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC))) continue; /* Want to replace pdtlb by a pdtlb,l instruction? */ diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c index dfff8a0d6fd1..aa79d35dedfa 100644 --- a/arch/parisc/kernel/asm-offsets.c +++ b/arch/parisc/kernel/asm-offsets.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Generate definitions needed by assembly language modules. * This code generates raw asm output which is post-processed to extract @@ -11,20 +12,6 @@ * Copyright (C) 2001 Richard Hirst <rhirst at parisc-linux.org> * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> * Copyright (C) 2003 James Bottomley <jejb at parisc-linux.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/types.h> diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c index 00a181f1ecc6..3b330e58a4f0 100644 --- a/arch/parisc/kernel/drivers.c +++ b/arch/parisc/kernel/drivers.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * drivers.c * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * Copyright (c) 1999 The Puffin Group * Copyright (c) 2001 Matthew Wilcox for Hewlett Packard * Copyright (c) 2001 Helge Deller <deller@gmx.de> diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index a1fc04570ade..3e430590c1e1 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Linux/PA-RISC Project (http://www.parisc-linux.org/) * @@ -6,20 +7,6 @@ * Copyright (C) 1999 SuSE GmbH Nuernberg * Copyright (C) 2000 Hewlett-Packard (John Marvin) * Copyright (C) 1999 Hewlett-Packard (Frank Rowand) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <asm/asm-offsets.h> @@ -2025,6 +2012,70 @@ ftrace_stub: #endif ENDPROC_CFI(mcount) +#ifdef CONFIG_DYNAMIC_FTRACE + +#ifdef CONFIG_64BIT +#define FTRACE_FRAME_SIZE (2*FRAME_SIZE) +#else +#define FTRACE_FRAME_SIZE FRAME_SIZE +#endif +ENTRY_CFI(ftrace_caller, caller,frame=FTRACE_FRAME_SIZE,CALLS,SAVE_RP,SAVE_SP) +ftrace_caller: + .global ftrace_caller + + STREG %r3, -FTRACE_FRAME_SIZE+1*REG_SZ(%sp) + ldo -FTRACE_FRAME_SIZE(%sp), %r3 + STREG %rp, -RP_OFFSET(%r3) + + /* Offset 0 is already allocated for %r1 */ + STREG %r23, 2*REG_SZ(%r3) + STREG %r24, 3*REG_SZ(%r3) + STREG %r25, 4*REG_SZ(%r3) + STREG %r26, 5*REG_SZ(%r3) + STREG %r28, 6*REG_SZ(%r3) + STREG %r29, 7*REG_SZ(%r3) +#ifdef CONFIG_64BIT + STREG %r19, 8*REG_SZ(%r3) + STREG %r20, 9*REG_SZ(%r3) + STREG %r21, 10*REG_SZ(%r3) + STREG %r22, 11*REG_SZ(%r3) + STREG %r27, 12*REG_SZ(%r3) + STREG %r31, 13*REG_SZ(%r3) + loadgp + ldo -16(%sp),%r29 +#endif + LDREG 0(%r3), %r25 + copy %rp, %r26 + ldo -8(%r25), %r25 + b,l ftrace_function_trampoline, %rp + copy %r3, %r24 + + LDREG -RP_OFFSET(%r3), %rp + LDREG 2*REG_SZ(%r3), %r23 + LDREG 3*REG_SZ(%r3), %r24 + LDREG 4*REG_SZ(%r3), %r25 + LDREG 5*REG_SZ(%r3), %r26 + LDREG 6*REG_SZ(%r3), %r28 + LDREG 7*REG_SZ(%r3), %r29 +#ifdef CONFIG_64BIT + LDREG 8*REG_SZ(%r3), %r19 + LDREG 9*REG_SZ(%r3), %r20 + LDREG 10*REG_SZ(%r3), %r21 + LDREG 11*REG_SZ(%r3), %r22 + LDREG 12*REG_SZ(%r3), %r27 + LDREG 13*REG_SZ(%r3), %r31 +#endif + LDREG 1*REG_SZ(%r3), %r3 + + LDREGM -FTRACE_FRAME_SIZE(%sp), %r1 + /* Adjust return point to jump back to beginning of traced function */ + ldo -4(%r1), %r1 + bv,n (%r1) + +ENDPROC_CFI(ftrace_caller) + +#endif + #ifdef CONFIG_FUNCTION_GRAPH_TRACER .align 8 ENTRY_CFI(return_to_handler, caller,frame=FRAME_SIZE) diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index f01e102bbfa2..58cc08e7fd12 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * arch/parisc/kernel/firmware.c - safe PDC access routines * @@ -12,12 +13,6 @@ * Copyright 2003 Grant Grundler <grundler parisc-linux org> * Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org> * Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * */ /* I think it would be in everyone's best interest to follow this diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c index a28f915993b1..d784ccdd8fef 100644 --- a/arch/parisc/kernel/ftrace.c +++ b/arch/parisc/kernel/ftrace.c @@ -7,17 +7,17 @@ * Copyright (C) 2007-2008 Steven Rostedt <srostedt@redhat.com> * * future possible enhancements: - * - add CONFIG_DYNAMIC_FTRACE * - add CONFIG_STACK_TRACER */ #include <linux/init.h> #include <linux/ftrace.h> +#include <linux/uaccess.h> #include <asm/assembly.h> #include <asm/sections.h> #include <asm/ftrace.h> - +#include <asm/patch.h> #define __hot __attribute__ ((__section__ (".text.hot"))) @@ -50,13 +50,11 @@ void notrace __hot ftrace_function_trampoline(unsigned long parent, unsigned long self_addr, unsigned long org_sp_gr3) { - extern ftrace_func_t ftrace_trace_function; /* depends on CONFIG_DYNAMIC_FTRACE */ - - if (ftrace_trace_function != ftrace_stub) { - /* struct ftrace_ops *op, struct pt_regs *regs); */ - ftrace_trace_function(parent, self_addr, NULL, NULL); - return; - } +#ifndef CONFIG_DYNAMIC_FTRACE + extern ftrace_func_t ftrace_trace_function; +#endif + if (ftrace_trace_function != ftrace_stub) + ftrace_trace_function(self_addr, parent, NULL, NULL); #ifdef CONFIG_FUNCTION_GRAPH_TRACER if (ftrace_graph_return != (trace_func_graph_ret_t) ftrace_stub || @@ -75,3 +73,116 @@ void notrace __hot ftrace_function_trampoline(unsigned long parent, #endif } +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +int ftrace_enable_ftrace_graph_caller(void) +{ + return 0; +} + +int ftrace_disable_ftrace_graph_caller(void) +{ + return 0; +} +#endif + +#ifdef CONFIG_DYNAMIC_FTRACE + +int __init ftrace_dyn_arch_init(void) +{ + return 0; +} +int ftrace_update_ftrace_func(ftrace_func_t func) +{ + return 0; +} + +unsigned long ftrace_call_adjust(unsigned long addr) +{ + return addr+(FTRACE_PATCHABLE_FUNCTION_SIZE-1)*4; +} + +int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) +{ + u32 insn[FTRACE_PATCHABLE_FUNCTION_SIZE]; + u32 *tramp; + int size, ret, i; + void *ip; + +#ifdef CONFIG_64BIT + unsigned long addr2 = + (unsigned long)dereference_function_descriptor((void *)addr); + + u32 ftrace_trampoline[] = { + 0x73c10208, /* std,ma r1,100(sp) */ + 0x0c2110c1, /* ldd -10(r1),r1 */ + 0xe820d002, /* bve,n (r1) */ + addr2 >> 32, + addr2 & 0xffffffff, + 0xe83f1fd7, /* b,l,n .-14,r1 */ + }; + + u32 ftrace_trampoline_unaligned[] = { + addr2 >> 32, + addr2 & 0xffffffff, + 0x37de0200, /* ldo 100(sp),sp */ + 0x73c13e01, /* std r1,-100(sp) */ + 0x34213ff9, /* ldo -4(r1),r1 */ + 0x50213fc1, /* ldd -20(r1),r1 */ + 0xe820d002, /* bve,n (r1) */ + 0xe83f1fcf, /* b,l,n .-20,r1 */ + }; + + BUILD_BUG_ON(ARRAY_SIZE(ftrace_trampoline_unaligned) > + FTRACE_PATCHABLE_FUNCTION_SIZE); +#else + u32 ftrace_trampoline[] = { + (u32)addr, + 0x6fc10080, /* stw,ma r1,40(sp) */ + 0x48213fd1, /* ldw -18(r1),r1 */ + 0xe820c002, /* bv,n r0(r1) */ + 0xe83f1fdf, /* b,l,n .-c,r1 */ + }; +#endif + + BUILD_BUG_ON(ARRAY_SIZE(ftrace_trampoline) > + FTRACE_PATCHABLE_FUNCTION_SIZE); + + size = sizeof(ftrace_trampoline); + tramp = ftrace_trampoline; + +#ifdef CONFIG_64BIT + if (rec->ip & 0x4) { + size = sizeof(ftrace_trampoline_unaligned); + tramp = ftrace_trampoline_unaligned; + } +#endif + + ip = (void *)(rec->ip + 4 - size); + + ret = probe_kernel_read(insn, ip, size); + if (ret) + return ret; + + for (i = 0; i < size / 4; i++) { + if (insn[i] != INSN_NOP) + return -EINVAL; + } + + __patch_text_multiple(ip, tramp, size); + return 0; +} + +int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, + unsigned long addr) +{ + u32 insn[FTRACE_PATCHABLE_FUNCTION_SIZE]; + int i; + + for (i = 0; i < ARRAY_SIZE(insn); i++) + insn[i] = INSN_NOP; + + __patch_text_multiple((void *)rec->ip + 4 - sizeof(insn), + insn, sizeof(insn)); + return 0; +} +#endif diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c index a2058953a53f..98c5203c1ab0 100644 --- a/arch/parisc/kernel/hardware.c +++ b/arch/parisc/kernel/hardware.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Hardware descriptions for HP 9000 based hardware, including * system types, SCSI controllers, DMA controllers, HPPB controllers @@ -9,21 +10,6 @@ * * Copyright 1999 by Alex deVries <alex@onefishtwo.ca> * and copyright 1999 The Puffin Group Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S index fde654115564..81de5e2b391c 100644 --- a/arch/parisc/kernel/hpmc.S +++ b/arch/parisc/kernel/hpmc.S @@ -1,23 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * HPMC (High Priority Machine Check) handler. * * Copyright (C) 1999 Philipp Rumpf <prumpf@tux.org> * Copyright (C) 1999 Hewlett-Packard (Frank Rowand) * Copyright (C) 2000 Hewlett-Packard (John Marvin) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c index 3f4a91c0b805..9298f2285510 100644 --- a/arch/parisc/kernel/inventory.c +++ b/arch/parisc/kernel/inventory.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * inventory.c * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * Copyright (c) 1999 The Puffin Group (David Kennedy and Alex deVries) * Copyright (c) 2001 Matthew Wilcox for Hewlett-Packard * diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 23040a67583e..e5fcfb70cc7c 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Code to handle x86 style IRQs plus some generic interrupt stuff. * @@ -6,20 +7,6 @@ * Copyright (C) 1999 SuSE GmbH (Philipp Rumpf, prumpf@tux.org) * Copyright (C) 1999-2000 Grant Grundler * Copyright (c) 2005 Matthew Wilcox - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/bitops.h> #include <linux/errno.h> diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c index 43778420614b..ac5f34993b53 100644 --- a/arch/parisc/kernel/module.c +++ b/arch/parisc/kernel/module.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Kernel dynamically loadable module help for PARISC. * * The best reference for this stuff is probably the Processor- @@ -8,22 +9,6 @@ * Copyright (C) 2003 Randolph Chung <tausq at debian . org> * Copyright (C) 2008 Helge Deller <deller@gmx.de> * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * * Notes: * - PLT stub handling * On 32bit (and sometimes 64bit) and with big kernel modules like xfs or @@ -48,9 +33,9 @@ * However, SEGREL32 is used only for PARISC unwind entries, and we want * those entries to have an absolute address, and not just an offset. * - * The unwind table mechanism has the ability to specify an offset for + * The unwind table mechanism has the ability to specify an offset for * the unwind table; however, because we split off the init functions into - * a different piece of memory, it is not possible to do this using a + * a different piece of memory, it is not possible to do this using a * single offset. Instead, we use the above hack for now. */ @@ -68,12 +53,6 @@ #include <asm/unwind.h> #include <asm/sections.h> -#if 0 -#define DEBUGP printk -#else -#define DEBUGP(fmt...) -#endif - #define RELOC_REACHABLE(val, bits) \ (( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 ) || \ ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) ? \ @@ -315,7 +294,7 @@ unsigned int arch_mod_section_prepend(struct module *mod, * sizeof(struct stub_entry); } -#define CONST +#define CONST int module_frob_arch_sections(CONST Elf_Ehdr *hdr, CONST Elf_Shdr *sechdrs, CONST char *secstrings, @@ -401,7 +380,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend) got[i].addr = value; out: - DEBUGP("GOT ENTRY %d[%x] val %lx\n", i, i*sizeof(struct got_entry), + pr_debug("GOT ENTRY %d[%lx] val %lx\n", i, i*sizeof(struct got_entry), value); return i * sizeof(struct got_entry); } @@ -554,7 +533,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, //unsigned long dp = (unsigned long)$global$; register unsigned long dp asm ("r27"); - DEBUGP("Applying relocate section %u to %u\n", relsec, + pr_debug("Applying relocate section %u to %u\n", relsec, targetsec); for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { /* This is where to make the change */ @@ -578,7 +557,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, #if 0 #define r(t) ELF32_R_TYPE(rel[i].r_info)==t ? #t : - DEBUGP("Symbol %s loc 0x%x val 0x%x addend 0x%x: %s\n", + pr_debug("Symbol %s loc 0x%x val 0x%x addend 0x%x: %s\n", strtab + sym->st_name, (uint32_t)loc, val, addend, r(R_PARISC_PLABEL32) @@ -619,7 +598,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, /* See note about special handling of SEGREL32 at * the beginning of this file. */ - *loc = fsel(val, addend); + *loc = fsel(val, addend); break; case R_PARISC_SECREL32: /* 32-bit section relative address. */ @@ -698,7 +677,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, Elf_Addr loc0; unsigned int targetsec = sechdrs[relsec].sh_info; - DEBUGP("Applying relocate section %u to %u\n", relsec, + pr_debug("Applying relocate section %u to %u\n", relsec, targetsec); for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { /* This is where to make the change */ @@ -740,7 +719,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, case R_PARISC_LTOFF21L: /* LT-relative; left 21 bits */ val = get_got(me, val, addend); - DEBUGP("LTOFF21L Symbol %s loc %p val %lx\n", + pr_debug("LTOFF21L Symbol %s loc %p val %llx\n", strtab + sym->st_name, loc, val); val = lrsel(val, 0); @@ -751,14 +730,14 @@ int apply_relocate_add(Elf_Shdr *sechdrs, /* LT-relative; right 14 bits */ val = get_got(me, val, addend); val = rrsel(val, 0); - DEBUGP("LTOFF14R Symbol %s loc %p val %lx\n", + pr_debug("LTOFF14R Symbol %s loc %p val %llx\n", strtab + sym->st_name, loc, val); *loc = mask(*loc, 14) | reassemble_14(val); break; case R_PARISC_PCREL22F: /* PC-relative; 22 bits */ - DEBUGP("PCREL22F Symbol %s loc %p val %lx\n", + pr_debug("PCREL22F Symbol %s loc %p val %llx\n", strtab + sym->st_name, loc, val); val += addend; @@ -790,7 +769,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, val = get_stub(me, val, addend, ELF_STUB_GOT, loc0, targetsec); } - DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", + pr_debug("STUB FOR %s loc %px, val %llx+%llx at %llx\n", strtab + sym->st_name, loc, sym->st_value, addend, val); val = (val - dot - 8)/4; @@ -801,6 +780,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs, /* 32-bit PC relative address */ *loc = val - dot - 8 + addend; break; + case R_PARISC_PCREL64: + /* 64-bit PC relative address */ + *loc64 = val - dot - 8 + addend; + break; case R_PARISC_DIR64: /* 64-bit effective address */ *loc64 = val + addend; @@ -810,7 +793,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, /* See note about special handling of SEGREL32 at * the beginning of this file. */ - *loc = fsel(val, addend); + *loc = fsel(val, addend); break; case R_PARISC_SECREL32: /* 32-bit section relative address. */ @@ -820,14 +803,14 @@ int apply_relocate_add(Elf_Shdr *sechdrs, /* 64-bit function address */ if(in_local(me, (void *)(val + addend))) { *loc64 = get_fdesc(me, val+addend); - DEBUGP("FDESC for %s at %p points to %lx\n", + pr_debug("FDESC for %s at %llx points to %llx\n", strtab + sym->st_name, *loc64, ((Elf_Fdesc *)*loc64)->addr); } else { /* if the symbol is not local to this * module then val+addend is a pointer * to the function descriptor */ - DEBUGP("Non local FPTR64 Symbol %s loc %p val %lx\n", + pr_debug("Non local FPTR64 Symbol %s loc %p val %llx\n", strtab + sym->st_name, loc, val); *loc64 = val + addend; @@ -858,7 +841,7 @@ register_unwind_table(struct module *me, end = table + sechdrs[me->arch.unwind_section].sh_size; gp = (Elf_Addr)me->core_layout.base + me->arch.got_offset; - DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", + pr_debug("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", me->arch.unwind_section, table, end, gp); me->arch.unwind = unwind_table_add(me->name, 0, gp, table, end); } @@ -879,6 +862,7 @@ int module_finalize(const Elf_Ehdr *hdr, const char *strtab = NULL; const Elf_Shdr *s; char *secstrings; + int err, symindex = -1; Elf_Sym *newptr, *oldptr; Elf_Shdr *symhdr = NULL; #ifdef DEBUG @@ -905,6 +889,7 @@ int module_finalize(const Elf_Ehdr *hdr, if(sechdrs[i].sh_type == SHT_SYMTAB && (sechdrs[i].sh_flags & SHF_ALLOC)) { int strindex = sechdrs[i].sh_link; + symindex = i; /* FIXME: AWFUL HACK * The cast is to drop the const from * the sechdrs pointer */ @@ -914,7 +899,7 @@ int module_finalize(const Elf_Ehdr *hdr, } } - DEBUGP("module %s: strtab %p, symhdr %p\n", + pr_debug("module %s: strtab %p, symhdr %p\n", me->name, strtab, symhdr); if(me->arch.got_count > MAX_GOTS) { @@ -933,7 +918,7 @@ int module_finalize(const Elf_Ehdr *hdr, oldptr = (void *)symhdr->sh_addr; newptr = oldptr + 1; /* we start counting at 1 */ nsyms = symhdr->sh_size / sizeof(Elf_Sym); - DEBUGP("OLD num_symtab %lu\n", nsyms); + pr_debug("OLD num_symtab %lu\n", nsyms); for (i = 1; i < nsyms; i++) { oldptr++; /* note, count starts at 1 so preincrement */ @@ -948,7 +933,7 @@ int module_finalize(const Elf_Ehdr *hdr, } nsyms = newptr - (Elf_Sym *)symhdr->sh_addr; - DEBUGP("NEW num_symtab %lu\n", nsyms); + pr_debug("NEW num_symtab %lu\n", nsyms); symhdr->sh_size = nsyms * sizeof(Elf_Sym); /* find .altinstructions section */ @@ -960,8 +945,24 @@ int module_finalize(const Elf_Ehdr *hdr, if (!strcmp(".altinstructions", secname)) /* patch .altinstructions */ apply_alternatives(aseg, aseg + s->sh_size, me->name); - } + /* For 32 bit kernels we're compiling modules with + * -ffunction-sections so we must relocate the addresses in the + *__mcount_loc section. + */ + if (symindex != -1 && !strcmp(secname, "__mcount_loc")) { + if (s->sh_type == SHT_REL) + err = apply_relocate((Elf_Shdr *)sechdrs, + strtab, symindex, + s - sechdrs, me); + else if (s->sh_type == SHT_RELA) + err = apply_relocate_add((Elf_Shdr *)sechdrs, + strtab, symindex, + s - sechdrs, me); + if (err) + return err; + } + } return 0; } diff --git a/arch/parisc/kernel/module.lds b/arch/parisc/kernel/module.lds new file mode 100644 index 000000000000..1a9a92aca5c8 --- /dev/null +++ b/arch/parisc/kernel/module.lds @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +SECTIONS { + __mcount_loc : { + *(__patchable_function_entries) + } +} diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index 4e4e8eb25874..ba67893a1d72 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * PARISC TLB and cache flushing support * Copyright (C) 2000-2001 Hewlett-Packard (John Marvin) * Copyright (C) 2001 Matthew Wilcox (willy at parisc-linux.org) * Copyright (C) 2002 Richard Hirst (rhirst with parisc-linux.org) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index 174213b1716e..e8a6a751dfd8 100644 --- a/arch/parisc/kernel/parisc_ksyms.c +++ b/arch/parisc/kernel/parisc_ksyms.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Architecture-specific kernel symbols * @@ -8,20 +9,6 @@ * Copyright (C) 2002-2003 Matthew Wilcox <willy at parisc-linux.org> * Copyright (C) 2002 Randolph Chung <tausq at parisc-linux.org> * Copyright (C) 2002-2007 Helge Deller <deller with parisc-linux.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/module.h> diff --git a/arch/parisc/kernel/patch.c b/arch/parisc/kernel/patch.c index cdcd981278b3..80a0ab372802 100644 --- a/arch/parisc/kernel/patch.c +++ b/arch/parisc/kernel/patch.c @@ -17,15 +17,20 @@ struct patch { void *addr; - unsigned int insn; + u32 *insn; + unsigned int len; }; -static void __kprobes *patch_map(void *addr, int fixmap) +static DEFINE_RAW_SPINLOCK(patch_lock); + +static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags, + int *need_unmap) { unsigned long uintaddr = (uintptr_t) addr; bool module = !core_kernel_text(uintaddr); struct page *page; + *need_unmap = 0; if (module && IS_ENABLED(CONFIG_STRICT_MODULE_RWX)) page = vmalloc_to_page(addr); else if (!module && IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)) @@ -33,36 +38,74 @@ static void __kprobes *patch_map(void *addr, int fixmap) else return addr; + *need_unmap = 1; set_fixmap(fixmap, page_to_phys(page)); + if (flags) + raw_spin_lock_irqsave(&patch_lock, *flags); + else + __acquire(&patch_lock); return (void *) (__fix_to_virt(fixmap) + (uintaddr & ~PAGE_MASK)); } -static void __kprobes patch_unmap(int fixmap) +static void __kprobes patch_unmap(int fixmap, unsigned long *flags) { clear_fixmap(fixmap); + + if (flags) + raw_spin_unlock_irqrestore(&patch_lock, *flags); + else + __release(&patch_lock); +} + +void __kprobes __patch_text_multiple(void *addr, u32 *insn, unsigned int len) +{ + unsigned long start = (unsigned long)addr; + unsigned long end = (unsigned long)addr + len; + unsigned long flags; + u32 *p, *fixmap; + int mapped; + + /* Make sure we don't have any aliases in cache */ + flush_kernel_vmap_range(addr, len); + flush_icache_range(start, end); + + p = fixmap = patch_map(addr, FIX_TEXT_POKE0, &flags, &mapped); + + while (len >= 4) { + *p++ = *insn++; + addr += sizeof(u32); + len -= sizeof(u32); + if (len && offset_in_page(addr) == 0) { + /* + * We're crossing a page boundary, so + * need to remap + */ + flush_kernel_vmap_range((void *)fixmap, + (p-fixmap) * sizeof(*p)); + if (mapped) + patch_unmap(FIX_TEXT_POKE0, &flags); + p = fixmap = patch_map(addr, FIX_TEXT_POKE0, &flags, + &mapped); + } + } + + flush_kernel_vmap_range((void *)fixmap, (p-fixmap) * sizeof(*p)); + if (mapped) + patch_unmap(FIX_TEXT_POKE0, &flags); + flush_icache_range(start, end); } -void __kprobes __patch_text(void *addr, unsigned int insn) +void __kprobes __patch_text(void *addr, u32 insn) { - void *waddr = addr; - int size; - - waddr = patch_map(addr, FIX_TEXT_POKE0); - *(u32 *)waddr = insn; - size = sizeof(u32); - flush_kernel_vmap_range(waddr, size); - patch_unmap(FIX_TEXT_POKE0); - flush_icache_range((uintptr_t)(addr), - (uintptr_t)(addr) + size); + __patch_text_multiple(addr, &insn, sizeof(insn)); } static int __kprobes patch_text_stop_machine(void *data) { struct patch *patch = data; - __patch_text(patch->addr, patch->insn); - + __patch_text_multiple(patch->addr, patch->insn, patch->len); return 0; } @@ -70,7 +113,20 @@ void __kprobes patch_text(void *addr, unsigned int insn) { struct patch patch = { .addr = addr, + .insn = &insn, + .len = sizeof(insn), + }; + + stop_machine_cpuslocked(patch_text_stop_machine, &patch, NULL); +} + +void __kprobes patch_text_multiple(void *addr, u32 *insn, unsigned int len) +{ + + struct patch patch = { + .addr = addr, .insn = insn, + .len = len }; stop_machine_cpuslocked(patch_text_stop_machine, &patch, NULL); diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c index 239162355b58..ca35d9a76e50 100644 --- a/arch/parisc/kernel/pci-dma.c +++ b/arch/parisc/kernel/pci-dma.c @@ -394,17 +394,20 @@ pcxl_dma_init(void) __initcall(pcxl_dma_init); -static void *pcxl_dma_alloc(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs) +void *arch_dma_alloc(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) { unsigned long vaddr; unsigned long paddr; int order; + if (boot_cpu_data.cpu_type != pcxl2 && boot_cpu_data.cpu_type != pcxl) + return NULL; + order = get_order(size); size = 1 << (order + PAGE_SHIFT); vaddr = pcxl_alloc_range(size); - paddr = __get_free_pages(flag | __GFP_ZERO, order); + paddr = __get_free_pages(gfp | __GFP_ZERO, order); flush_kernel_dcache_range(paddr, size); paddr = __pa(paddr); map_uncached_pages(vaddr, size, paddr); @@ -421,44 +424,19 @@ static void *pcxl_dma_alloc(struct device *dev, size_t size, return (void *)vaddr; } -static void *pcx_dma_alloc(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs) -{ - void *addr; - - if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) - return NULL; - - addr = (void *)__get_free_pages(flag | __GFP_ZERO, get_order(size)); - if (addr) - *dma_handle = (dma_addr_t)virt_to_phys(addr); - - return addr; -} - -void *arch_dma_alloc(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) -{ - - if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) - return pcxl_dma_alloc(dev, size, dma_handle, gfp, attrs); - else - return pcx_dma_alloc(dev, size, dma_handle, gfp, attrs); -} - void arch_dma_free(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, unsigned long attrs) { int order = get_order(size); - if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) { - size = 1 << (order + PAGE_SHIFT); - unmap_uncached_pages((unsigned long)vaddr, size); - pcxl_free_range((unsigned long)vaddr, size); + WARN_ON_ONCE(boot_cpu_data.cpu_type != pcxl2 && + boot_cpu_data.cpu_type != pcxl); - vaddr = __va(dma_handle); - } - free_pages((unsigned long)vaddr, get_order(size)); + size = 1 << (order + PAGE_SHIFT); + unmap_uncached_pages((unsigned long)vaddr, size); + pcxl_free_range((unsigned long)vaddr, size); + + free_pages((unsigned long)__va(dma_handle), order); } void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr, diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c index 28e07482b0f1..75ae88d13909 100644 --- a/arch/parisc/kernel/pdc_chassis.c +++ b/arch/parisc/kernel/pdc_chassis.c @@ -1,22 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * interfaces to Chassis Codes via PDC (firmware) * * Copyright (C) 2002 Laurent Canet <canetl@esiee.fr> * Copyright (C) 2002-2006 Thibaut VARENE <varenet@parisc-linux.org> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * * TODO: poll chassis warns, trigger (configurable) machine shutdown when * needed. * Find out how to get Chassis warnings out of PAT boxes? diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index c46bf29ae412..7ed404c60a9e 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PDC Console support - ie use firmware to dump text via boot console * @@ -13,21 +14,6 @@ * Copyright (C) 2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org> * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> * Copyright (C) 2010 Guy Martin <gmsoft at tuxicoman.be> - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c index 0813359049ae..676683641d00 100644 --- a/arch/parisc/kernel/perf.c +++ b/arch/parisc/kernel/perf.c @@ -1,22 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Parisc performance counters * Copyright (C) 2001 Randolph Chung <tausq@debian.org> * * This code is derived, with permission, from HP/UX sources. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* diff --git a/arch/parisc/kernel/perf_asm.S b/arch/parisc/kernel/perf_asm.S index fa6ea99bb324..8fceabb1a832 100644 --- a/arch/parisc/kernel/perf_asm.S +++ b/arch/parisc/kernel/perf_asm.S @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* low-level asm for "intrigue" (PA8500-8700 CPU perf counters) * * Copyright (C) 2001 Randolph Chung <tausq at parisc-linux.org> * Copyright (C) 2001 Hewlett-Packard (Grant Grundler) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <asm/assembly.h> diff --git a/arch/parisc/kernel/perf_images.h b/arch/parisc/kernel/perf_images.h index c108fee989d9..7afa2fd550bf 100644 --- a/arch/parisc/kernel/perf_images.h +++ b/arch/parisc/kernel/perf_images.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Imagine for use with the Onyx (PCX-U) CPU interface * * Copyright (C) 2001 Randolph Chung <tausq at parisc-linux.org> * Copyright (C) 2001 Hewlett-Packard (Grant Grundler) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef PERF_IMAGES_H #define PERF_IMAGES_H diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 89e4f4497ffb..ecc5c2771208 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PARISC Architecture-dependent parts of process handling * based on the work for i386 @@ -15,21 +16,6 @@ * Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org> * Copyright (C) 2001-2014 Helge Deller <deller@gmx.de> * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <stdarg.h> diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c index e715871cd4ac..13f771f74ee3 100644 --- a/arch/parisc/kernel/processor.c +++ b/arch/parisc/kernel/processor.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Initial setup-routines for HP 9000 based hardware. * @@ -9,21 +10,6 @@ * Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net> * * Initial PA-RISC Version: 04-23-1999 by Helge Deller - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #include <linux/delay.h> #include <linux/init.h> diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index a3d2fb4e6dd2..f642ba378ffa 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -88,9 +88,9 @@ void user_enable_single_step(struct task_struct *task) ptrace_disable(task); /* Don't wake up the task, but let the parent know something happened. */ - force_sig_fault(SIGTRAP, TRAP_TRACE, - (void __user *) (task_regs(task)->iaoq[0] & ~3), - task); + force_sig_fault_to_task(SIGTRAP, TRAP_TRACE, + (void __user *) (task_regs(task)->iaoq[0] & ~3), + task); /* notify_parent(task, SIGCHLD); */ return; } diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c index e05cb2a5c16d..53a21ce927de 100644 --- a/arch/parisc/kernel/setup.c +++ b/arch/parisc/kernel/setup.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Initial setup-routines for HP 9000 based hardware. * @@ -9,21 +10,6 @@ * Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net> * * Initial PA-RISC Version: 04-23-1999 by Helge Deller - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #include <linux/kernel.h> diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 848c1934680b..02895a8f2c55 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -164,7 +164,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) give_sigsegv: DBG(1,"sys_rt_sigreturn: Sending SIGSEGV\n"); - force_sig(SIGSEGV, current); + force_sig(SIGSEGV); return; } diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c index e8ef3eb69449..9a5ba57ad94d 100644 --- a/arch/parisc/kernel/signal32.c +++ b/arch/parisc/kernel/signal32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Signal support for 32-bit kernel builds * * Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org> @@ -5,21 +6,6 @@ * * Code was mostly borrowed from kernel/signal.c. * See kernel/signal.c for additional Copyrights. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/compat.h> diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h index a271dc0976ce..f166250f2d06 100644 --- a/arch/parisc/kernel/signal32.h +++ b/arch/parisc/kernel/signal32.h @@ -1,20 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org> * Copyright (C) 2003 Carlos O'Donell <carlos at parisc-linux.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _PARISC64_KERNEL_SIGNAL32_H #define _PARISC64_KERNEL_SIGNAL32_H diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index d9e2d69c9e48..cbd074ba22da 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* ** SMP Support ** @@ -11,10 +12,6 @@ ** Thanks to John Curry and Ullas Ponnadi. I learned a lot from their work. ** -grant (1/12/2001) ** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. */ #include <linux/types.h> #include <linux/spinlock.h> diff --git a/arch/parisc/kernel/stacktrace.c b/arch/parisc/kernel/stacktrace.c index 6f0b9c8d8052..34bf6d6bf6e8 100644 --- a/arch/parisc/kernel/stacktrace.c +++ b/arch/parisc/kernel/stacktrace.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Stack trace management functions * diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 4407ac4c1d84..5d458a44b09c 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PARISC specific syscalls @@ -6,21 +7,6 @@ * Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org> * Copyright (C) 2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org> * Copyright (C) 1999-2014 Helge Deller <deller@gmx.de> - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/uaccess.h> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index c9e377d59232..5022b9e179c2 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -430,3 +430,4 @@ 431 common fsconfig sys_fsconfig 432 common fsmount sys_fsmount 433 common fspick sys_fspick +434 common pidfd_open sys_pidfd_open diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 096e319adeb3..58dcf445e32f 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -275,7 +275,7 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err) static void handle_gdb_break(struct pt_regs *regs, int wot) { force_sig_fault(SIGTRAP, wot, - (void __user *) (regs->iaoq[0] & ~3), current); + (void __user *) (regs->iaoq[0] & ~3)); } static void handle_break(struct pt_regs *regs) @@ -609,13 +609,13 @@ void notrace handle_interruption(int code, struct pt_regs *regs) si_code = ILL_PRVREG; give_sigill: force_sig_fault(SIGILL, si_code, - (void __user *) regs->iaoq[0], current); + (void __user *) regs->iaoq[0]); return; case 12: /* Overflow Trap, let the userland signal handler do the cleanup */ force_sig_fault(SIGFPE, FPE_INTOVF, - (void __user *) regs->iaoq[0], current); + (void __user *) regs->iaoq[0]); return; case 13: @@ -627,7 +627,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) * to by si_addr. */ force_sig_fault(SIGFPE, FPE_CONDTRAP, - (void __user *) regs->iaoq[0], current); + (void __user *) regs->iaoq[0]); return; } /* The kernel doesn't want to handle condition codes */ @@ -739,7 +739,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) force_sig_fault(SIGSEGV, SEGV_MAPERR, (code == 7)? ((void __user *) regs->iaoq[0]) : - ((void __user *) regs->ior), current); + ((void __user *) regs->ior)); return; case 28: @@ -754,7 +754,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) task_pid_nr(current), current->comm); /* SIGBUS, for lack of a better one. */ force_sig_fault(SIGBUS, BUS_OBJERR, - (void __user *)regs->ior, current); + (void __user *)regs->ior); return; } pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC); @@ -770,7 +770,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs) code, fault_space, task_pid_nr(current), current->comm); force_sig_fault(SIGSEGV, SEGV_MAPERR, - (void __user *)regs->ior, current); + (void __user *)regs->ior); return; } } diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c index 932bfc0b7cd8..237d20dd5622 100644 --- a/arch/parisc/kernel/unaligned.c +++ b/arch/parisc/kernel/unaligned.c @@ -1,23 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Unaligned memory access handler * * Copyright (C) 2001 Randolph Chung <tausq@debian.org> * Significantly tweaked by LaMont Jones <lamont@debian.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #include <linux/jiffies.h> @@ -690,14 +676,14 @@ void handle_unaligned(struct pt_regs *regs) if (ret == ERR_PAGEFAULT) { force_sig_fault(SIGSEGV, SEGV_MAPERR, - (void __user *)regs->ior, current); + (void __user *)regs->ior); } else { force_sigbus: /* couldn't handle it ... */ force_sig_fault(SIGBUS, BUS_ADRALN, - (void __user *)regs->ior, current); + (void __user *)regs->ior); } return; diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index c3b1b9c24ede..99cd24f2ea01 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -18,6 +18,8 @@ *(.data..vm0.pgd) \ *(.data..vm0.pte) +#define CC_USING_PATCHABLE_FUNCTION_ENTRY + #include <asm-generic/vmlinux.lds.h> /* needed for the processor specific cache alignment size */ @@ -35,6 +37,15 @@ OUTPUT_FORMAT("elf64-hppa-linux") OUTPUT_ARCH(hppa:hppa2.0w) #endif +#define EXIT_TEXT_SECTIONS() .exit.text : { EXIT_TEXT } +#if !defined(CONFIG_64BIT) || defined(CONFIG_MLONGCALLS) +#define MLONGCALL_KEEP(x) +#define MLONGCALL_DISCARD(x) x +#else +#define MLONGCALL_KEEP(x) x +#define MLONGCALL_DISCARD(x) +#endif + ENTRY(parisc_kernel_start) #ifndef CONFIG_64BIT jiffies = jiffies_64 + 4; @@ -47,15 +58,11 @@ SECTIONS __init_begin = .; HEAD_TEXT_SECTION - INIT_TEXT_SECTION(8) + MLONGCALL_DISCARD(INIT_TEXT_SECTION(8)) . = ALIGN(PAGE_SIZE); INIT_DATA_SECTION(PAGE_SIZE) - /* we have to discard exit text and such at runtime, not link time */ - .exit.text : - { - EXIT_TEXT - } + MLONGCALL_DISCARD(EXIT_TEXT_SECTIONS()) .exit.data : { EXIT_DATA @@ -73,11 +80,12 @@ SECTIONS _text = .; /* Text and read-only data */ _stext = .; + MLONGCALL_KEEP(INIT_TEXT_SECTION(8)) .text ALIGN(PAGE_SIZE) : { TEXT_TEXT + LOCK_TEXT SCHED_TEXT CPUIDLE_TEXT - LOCK_TEXT KPROBES_TEXT IRQENTRY_TEXT SOFTIRQENTRY_TEXT @@ -92,6 +100,7 @@ SECTIONS *(.lock.text) /* out-of-line lock text */ *(.gnu.warning) } + MLONGCALL_KEEP(EXIT_TEXT_SECTIONS()) . = ALIGN(PAGE_SIZE); _etext = .; /* End of text section */ |