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Merge tag 'loongarch-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen: - Better backtraces for humanization - Relay BCE exceptions to userland as SIGSEGV - Provide kernel fpu functions - Optimize memory ops (memset/memcpy/memmove) - Optimize checksum and crc32(c) calculation - Add ARCH_HAS_FORTIFY_SOURCE selection - Add function error injection support - Add ftrace with direct call support - Add basic perf tools support * tag 'loongarch-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (24 commits) tools/perf: Add basic support for LoongArch LoongArch: ftrace: Add direct call trampoline samples support LoongArch: ftrace: Add direct call support LoongArch: ftrace: Implement ftrace_find_callable_addr() to simplify code LoongArch: ftrace: Fix build error if DYNAMIC_FTRACE_WITH_REGS is not set LoongArch: ftrace: Abstract DYNAMIC_FTRACE_WITH_ARGS accesses LoongArch: Add support for function error injection LoongArch: Add ARCH_HAS_FORTIFY_SOURCE selection LoongArch: crypto: Add crc32 and crc32c hw acceleration LoongArch: Add checksum optimization for 64-bit system LoongArch: Optimize memory ops (memset/memcpy/memmove) LoongArch: Provide kernel fpu functions LoongArch: Relay BCE exceptions to userland as SIGSEGV with si_code=SEGV_BNDERR LoongArch: Tweak the BADV and CPUCFG.PRID lines in show_regs() LoongArch: Humanize the ESTAT line when showing registers LoongArch: Humanize the ECFG line when showing registers LoongArch: Humanize the EUEN line when showing registers LoongArch: Humanize the PRMD line when showing registers LoongArch: Humanize the CRMD line when showing registers LoongArch: Fix format of CSR lines during show_regs() ...
This commit is contained in:
Linus Torvalds
@@ -96,6 +96,40 @@ asm (
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#endif /* CONFIG_S390 */
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#ifdef CONFIG_LOONGARCH
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asm (
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" .pushsection .text, \"ax\", @progbits\n"
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" .type my_tramp1, @function\n"
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" .globl my_tramp1\n"
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" my_tramp1:\n"
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" addi.d $sp, $sp, -16\n"
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" st.d $t0, $sp, 0\n"
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" st.d $ra, $sp, 8\n"
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" bl my_direct_func1\n"
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" ld.d $t0, $sp, 0\n"
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" ld.d $ra, $sp, 8\n"
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" addi.d $sp, $sp, 16\n"
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" jr $t0\n"
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" .size my_tramp1, .-my_tramp1\n"
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" .type my_tramp2, @function\n"
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" .globl my_tramp2\n"
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" my_tramp2:\n"
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" addi.d $sp, $sp, -16\n"
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" st.d $t0, $sp, 0\n"
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" st.d $ra, $sp, 8\n"
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" bl my_direct_func2\n"
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" ld.d $t0, $sp, 0\n"
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" ld.d $ra, $sp, 8\n"
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" addi.d $sp, $sp, 16\n"
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" jr $t0\n"
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" .size my_tramp2, .-my_tramp2\n"
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" .popsection\n"
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);
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#endif /* CONFIG_LOONGARCH */
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static struct ftrace_ops direct;
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static unsigned long my_tramp = (unsigned long)my_tramp1;
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@@ -103,6 +103,47 @@ asm (
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#endif /* CONFIG_S390 */
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#ifdef CONFIG_LOONGARCH
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#include <asm/asm.h>
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asm (
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" .pushsection .text, \"ax\", @progbits\n"
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" .type my_tramp1, @function\n"
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" .globl my_tramp1\n"
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" my_tramp1:\n"
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" addi.d $sp, $sp, -32\n"
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" st.d $a0, $sp, 0\n"
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" st.d $t0, $sp, 8\n"
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" st.d $ra, $sp, 16\n"
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" move $a0, $t0\n"
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" bl my_direct_func1\n"
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" ld.d $a0, $sp, 0\n"
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" ld.d $t0, $sp, 8\n"
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" ld.d $ra, $sp, 16\n"
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" addi.d $sp, $sp, 32\n"
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" jr $t0\n"
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" .size my_tramp1, .-my_tramp1\n"
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" .type my_tramp2, @function\n"
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" .globl my_tramp2\n"
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" my_tramp2:\n"
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" addi.d $sp, $sp, -32\n"
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" st.d $a0, $sp, 0\n"
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" st.d $t0, $sp, 8\n"
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" st.d $ra, $sp, 16\n"
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" move $a0, $t0\n"
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" bl my_direct_func2\n"
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" ld.d $a0, $sp, 0\n"
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" ld.d $t0, $sp, 8\n"
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" ld.d $ra, $sp, 16\n"
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" addi.d $sp, $sp, 32\n"
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" jr $t0\n"
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" .size my_tramp2, .-my_tramp2\n"
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" .popsection\n"
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);
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#endif /* CONFIG_LOONGARCH */
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static unsigned long my_tramp = (unsigned long)my_tramp1;
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static unsigned long tramps[2] = {
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(unsigned long)my_tramp1,
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@@ -66,6 +66,31 @@ asm (
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#endif /* CONFIG_S390 */
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#ifdef CONFIG_LOONGARCH
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#include <asm/asm.h>
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asm (
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" .pushsection .text, \"ax\", @progbits\n"
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" .type my_tramp, @function\n"
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" .globl my_tramp\n"
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" my_tramp:\n"
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" addi.d $sp, $sp, -32\n"
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" st.d $a0, $sp, 0\n"
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" st.d $t0, $sp, 8\n"
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" st.d $ra, $sp, 16\n"
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" move $a0, $t0\n"
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" bl my_direct_func\n"
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" ld.d $a0, $sp, 0\n"
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" ld.d $t0, $sp, 8\n"
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" ld.d $ra, $sp, 16\n"
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" addi.d $sp, $sp, 32\n"
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" jr $t0\n"
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" .size my_tramp, .-my_tramp\n"
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" .popsection\n"
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);
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#endif /* CONFIG_LOONGARCH */
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static struct ftrace_ops direct;
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static int __init ftrace_direct_multi_init(void)
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@@ -70,6 +70,33 @@ asm (
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#endif /* CONFIG_S390 */
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#ifdef CONFIG_LOONGARCH
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asm (
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" .pushsection .text, \"ax\", @progbits\n"
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" .type my_tramp, @function\n"
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" .globl my_tramp\n"
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" my_tramp:\n"
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" addi.d $sp, $sp, -48\n"
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" st.d $a0, $sp, 0\n"
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" st.d $a1, $sp, 8\n"
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" st.d $a2, $sp, 16\n"
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" st.d $t0, $sp, 24\n"
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" st.d $ra, $sp, 32\n"
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" bl my_direct_func\n"
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" ld.d $a0, $sp, 0\n"
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" ld.d $a1, $sp, 8\n"
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" ld.d $a2, $sp, 16\n"
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" ld.d $t0, $sp, 24\n"
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" ld.d $ra, $sp, 32\n"
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" addi.d $sp, $sp, 48\n"
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" jr $t0\n"
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" .size my_tramp, .-my_tramp\n"
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" .popsection\n"
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);
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#endif /* CONFIG_LOONGARCH */
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static struct ftrace_ops direct;
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static int __init ftrace_direct_init(void)
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@@ -63,6 +63,29 @@ asm (
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#endif /* CONFIG_S390 */
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#ifdef CONFIG_LOONGARCH
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asm (
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" .pushsection .text, \"ax\", @progbits\n"
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" .type my_tramp, @function\n"
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" .globl my_tramp\n"
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" my_tramp:\n"
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" addi.d $sp, $sp, -32\n"
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" st.d $a0, $sp, 0\n"
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" st.d $t0, $sp, 8\n"
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" st.d $ra, $sp, 16\n"
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" bl my_direct_func\n"
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" ld.d $a0, $sp, 0\n"
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" ld.d $t0, $sp, 8\n"
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" ld.d $ra, $sp, 16\n"
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" addi.d $sp, $sp, 32\n"
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" jr $t0\n"
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" .size my_tramp, .-my_tramp\n"
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" .popsection\n"
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);
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#endif /* CONFIG_LOONGARCH */
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static struct ftrace_ops direct;
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static int __init ftrace_direct_init(void)
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