/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_NOSPEC_ASM_H #define _ASM_S390_NOSPEC_ASM_H #include <asm/alternative-asm.h> #include <asm/asm-offsets.h> #ifdef __ASSEMBLY__ #ifdef CONFIG_EXPOLINE _LC_BR_R1 = __LC_BR_R1 /* * The expoline macros are used to create thunks in the same format * as gcc generates them. The 'comdat' section flag makes sure that * the various thunks are merged into a single copy. */ .macro __THUNK_PROLOG_NAME name .pushsection .text.\name,"axG",@progbits,\name,comdat .globl \name .hidden \name .type \name,@function \name: .cfi_startproc .endm .macro __THUNK_EPILOG .cfi_endproc .popsection .endm .macro __THUNK_PROLOG_BR r1,r2 __THUNK_PROLOG_NAME __s390x_indirect_jump_r\r2\()use_r\r1 .endm .macro __THUNK_PROLOG_BC d0,r1,r2 __THUNK_PROLOG_NAME __s390x_indirect_branch_\d0\()_\r2\()use_\r1 .endm .macro __THUNK_BR r1,r2 jg __s390x_indirect_jump_r\r2\()use_r\r1 .endm .macro __THUNK_BC d0,r1,r2 jg __s390x_indirect_branch_\d0\()_\r2\()use_\r1 .endm .macro __THUNK_BRASL r1,r2,r3 brasl \r1,__s390x_indirect_jump_r\r3\()use_r\r2 .endm .macro __DECODE_RR expand,reg,ruse .set __decode_fail,1 .irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \reg,%r\r1 .irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \ruse,%r\r2 \expand \r1,\r2 .set __decode_fail,0 .endif .endr .endif .endr .if __decode_fail == 1 .error "__DECODE_RR failed" .endif .endm .macro __DECODE_RRR expand,rsave,rtarget,ruse .set __decode_fail,1 .irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \rsave,%r\r1 .irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \rtarget,%r\r2 .irp r3,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \ruse,%r\r3 \expand \r1,\r2,\r3 .set __decode_fail,0 .endif .endr .endif .endr .endif .endr .if __decode_fail == 1 .error "__DECODE_RRR failed" .endif .endm .macro __DECODE_DRR expand,disp,reg,ruse .set __decode_fail,1 .irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \reg,%r\r1 .irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 .ifc \ruse,%r\r2 \expand \disp,\r1,\r2 .set __decode_fail,0 .endif .endr .endif .endr .if __decode_fail == 1 .error "__DECODE_DRR failed" .endif .endm .macro __THUNK_EX_BR reg,ruse # Be very careful when adding instructions to this macro! # The ALTERNATIVE replacement code has a .+10 which targets # the "br \reg" after the code has been patched. #ifdef CONFIG_HAVE_MARCH_Z10_FEATURES exrl 0,555f j . #else .ifc \reg,%r1 ALTERNATIVE "ex %r0,_LC_BR_R1", ".insn ril,0xc60000000000,0,.+10", 35 j . .else larl \ruse,555f ex 0,0(\ruse) j . .endif #endif 555: br \reg .endm .macro __THUNK_EX_BC disp,reg,ruse #ifdef CONFIG_HAVE_MARCH_Z10_FEATURES exrl 0,556f j . #else larl \ruse,556f ex 0,0(\ruse) j . #endif 556: b \disp(\reg) .endm .macro GEN_BR_THUNK reg,ruse=%r1 __DECODE_RR __THUNK_PROLOG_BR,\reg,\ruse __THUNK_EX_BR \reg,\ruse __THUNK_EPILOG .endm .macro GEN_B_THUNK disp,reg,ruse=%r1 __DECODE_DRR __THUNK_PROLOG_BC,\disp,\reg,\ruse __THUNK_EX_BC \disp,\reg,\ruse __THUNK_EPILOG .endm .macro BR_EX reg,ruse=%r1 557: __DECODE_RR __THUNK_BR,\reg,\ruse .pushsection .s390_indirect_branches,"a",@progbits .long 557b-. .popsection .endm .macro B_EX disp,reg,ruse=%r1 558: __DECODE_DRR __THUNK_BC,\disp,\reg,\ruse .pushsection .s390_indirect_branches,"a",@progbits .long 558b-. .popsection .endm .macro BASR_EX rsave,rtarget,ruse=%r1 559: __DECODE_RRR __THUNK_BRASL,\rsave,\rtarget,\ruse .pushsection .s390_indirect_branches,"a",@progbits .long 559b-. .popsection .endm #else .macro GEN_BR_THUNK reg,ruse=%r1 .endm .macro GEN_B_THUNK disp,reg,ruse=%r1 .endm .macro BR_EX reg,ruse=%r1 br \reg .endm .macro B_EX disp,reg,ruse=%r1 b \disp(\reg) .endm .macro BASR_EX rsave,rtarget,ruse=%r1 basr \rsave,\rtarget .endm #endif #endif /* __ASSEMBLY__ */ #endif /* _ASM_S390_NOSPEC_ASM_H */
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trace | Folder | 0755 |
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Kbuild | File | 557 B | 0644 |
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airq.h | File | 3.02 KB | 0644 |
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alternative-asm.h | File | 3.07 KB | 0644 |
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alternative.h | File | 4.99 KB | 0644 |
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ap.h | File | 9.9 KB | 0644 |
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appldata.h | File | 1.54 KB | 0644 |
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archrandom.h | File | 1.1 KB | 0644 |
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asm-prototypes.h | File | 227 B | 0644 |
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atomic.h | File | 5.1 KB | 0644 |
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atomic_ops.h | File | 4.02 KB | 0644 |
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barrier.h | File | 1.84 KB | 0644 |
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bitops.h | File | 10.13 KB | 0644 |
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bug.h | File | 1.49 KB | 0644 |
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cache.h | File | 387 B | 0644 |
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ccwdev.h | File | 7.99 KB | 0644 |
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ccwgroup.h | File | 2.53 KB | 0644 |
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checksum.h | File | 3.24 KB | 0644 |
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chpid.h | File | 974 B | 0644 |
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cio.h | File | 8.01 KB | 0644 |
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clp.h | File | 1.32 KB | 0644 |
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cmb.h | File | 425 B | 0644 |
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cmpxchg.h | File | 1.76 KB | 0644 |
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compat.h | File | 7.9 KB | 0644 |
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cpacf.h | File | 16.8 KB | 0644 |
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cpcmd.h | File | 1.11 KB | 0644 |
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cpu.h | File | 549 B | 0644 |
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cpu_mf.h | File | 8.99 KB | 0644 |
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cpufeature.h | File | 963 B | 0644 |
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cputime.h | File | 805 B | 0644 |
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crw.h | File | 1.86 KB | 0644 |
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css_chars.h | File | 769 B | 0644 |
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ctl_reg.h | File | 2.89 KB | 0644 |
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current.h | File | 405 B | 0644 |
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debug.h | File | 8.1 KB | 0644 |
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delay.h | File | 721 B | 0644 |
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diag.h | File | 5.94 KB | 0644 |
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dis.h | File | 637 B | 0644 |
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dma-mapping.h | File | 621 B | 0644 |
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dma.h | File | 456 B | 0644 |
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eadm.h | File | 2.03 KB | 0644 |
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ebcdic.h | File | 1.41 KB | 0644 |
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elf.h | File | 10.36 KB | 0644 |
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exec.h | File | 269 B | 0644 |
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extable.h | File | 875 B | 0644 |
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extmem.h | File | 804 B | 0644 |
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facility.h | File | 2.44 KB | 0644 |
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fcx.h | File | 7.91 KB | 0644 |
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ftrace.h | File | 1.66 KB | 0644 |
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futex.h | File | 2.07 KB | 0644 |
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gmap.h | File | 4.93 KB | 0644 |
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hardirq.h | File | 670 B | 0644 |
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hugetlb.h | File | 2.82 KB | 0644 |
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hw_irq.h | File | 249 B | 0644 |
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idals.h | File | 5.22 KB | 0644 |
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idle.h | File | 709 B | 0644 |
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io.h | File | 2.03 KB | 0644 |
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ipl.h | File | 3.6 KB | 0644 |
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irq.h | File | 2.55 KB | 0644 |
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irqflags.h | File | 1.76 KB | 0644 |
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isc.h | File | 1000 B | 0644 |
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itcw.h | File | 950 B | 0644 |
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jump_label.h | File | 1.36 KB | 0644 |
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kdebug.h | File | 386 B | 0644 |
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kexec.h | File | 1.32 KB | 0644 |
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kprobes.h | File | 2.24 KB | 0644 |
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kvm_host.h | File | 22.24 KB | 0644 |
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kvm_para.h | File | 5.78 KB | 0644 |
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linkage.h | File | 633 B | 0644 |
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livepatch.h | File | 461 B | 0644 |
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lowcore.h | File | 6.29 KB | 0644 |
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mmu.h | File | 1.19 KB | 0644 |
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mmu_context.h | File | 3.84 KB | 0644 |
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mmzone.h | File | 316 B | 0644 |
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module.h | File | 802 B | 0644 |
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nmi.h | File | 3.44 KB | 0644 |
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nospec-branch.h | File | 342 B | 0644 |
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nospec-insn.h | File | 3.81 KB | 0644 |
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numa.h | File | 730 B | 0644 |
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os_info.h | File | 1.1 KB | 0644 |
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page-states.h | File | 486 B | 0644 |
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page.h | File | 5.12 KB | 0644 |
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pci.h | File | 6.26 KB | 0644 |
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pci_clp.h | File | 4.25 KB | 0644 |
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pci_debug.h | File | 608 B | 0644 |
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pci_dma.h | File | 5.7 KB | 0644 |
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pci_insn.h | File | 2.59 KB | 0644 |
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pci_io.h | File | 4.58 KB | 0644 |
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percpu.h | File | 6.43 KB | 0644 |
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perf_event.h | File | 2.71 KB | 0644 |
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pgalloc.h | File | 4.32 KB | 0644 |
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pgtable.h | File | 47.7 KB | 0644 |
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pkey.h | File | 4.23 KB | 0644 |
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preempt.h | File | 3.25 KB | 0644 |
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processor.h | File | 10.42 KB | 0644 |
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ptrace.h | File | 5.27 KB | 0644 |
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qdio.h | File | 11.67 KB | 0644 |
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reset.h | File | 471 B | 0644 |
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runtime_instr.h | File | 1.76 KB | 0644 |
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schid.h | File | 525 B | 0644 |
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sclp.h | File | 3.38 KB | 0644 |
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scsw.h | File | 24.1 KB | 0644 |
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seccomp.h | File | 516 B | 0644 |
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sections.h | File | 155 B | 0644 |
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segment.h | File | 93 B | 0644 |
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serial.h | File | 147 B | 0644 |
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set_memory.h | File | 779 B | 0644 |
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setup.h | File | 4.44 KB | 0644 |
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shmparam.h | File | 285 B | 0644 |
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signal.h | File | 644 B | 0644 |
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sigp.h | File | 1.8 KB | 0644 |
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smp.h | File | 2.45 KB | 0644 |
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sparsemem.h | File | 214 B | 0644 |
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spinlock.h | File | 3.53 KB | 0644 |
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spinlock_types.h | File | 437 B | 0644 |
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stp.h | File | 1.26 KB | 0644 |
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string.h | File | 4.5 KB | 0644 |
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switch_to.h | File | 1.37 KB | 0644 |
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syscall.h | File | 2.63 KB | 0644 |
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sysinfo.h | File | 4.22 KB | 0644 |
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termios.h | File | 685 B | 0644 |
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thread_info.h | File | 3.15 KB | 0644 |
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timex.h | File | 6.15 KB | 0644 |
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tlb.h | File | 5.71 KB | 0644 |
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tlbflush.h | File | 3.52 KB | 0644 |
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topology.h | File | 2.69 KB | 0644 |
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uaccess.h | File | 6.57 KB | 0644 |
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unistd.h | File | 1.03 KB | 0644 |
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uprobes.h | File | 588 B | 0644 |
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user.h | File | 3.3 KB | 0644 |
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vdso.h | File | 1.8 KB | 0644 |
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vga.h | File | 170 B | 0644 |
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vtime.h | File | 182 B | 0644 |
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vtimer.h | File | 866 B | 0644 |
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vx-insn.h | File | 10.66 KB | 0644 |
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xor.h | File | 454 B | 0644 |
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