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| author | Sven Schnelle <svens@linux.ibm.com> | 2026-09-09 11:29:53 +0200 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2026-09-10 08:43:35 +0900 |
| commit | d22c3e0088e85be8131f7a9283f759cdbb20726d (patch) | |
| tree | 9668df2aa27b26f850d3ba5ba1287e443803675c /arch/powerpc/boot/gamecube-head.S | |
| download | linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.tar.gz linux-stable-d22c3e0088e85be8131f7a9283f759cdbb20726d.zip | |
selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tcgrafted
The current regex also matches symbols in modules, which makes the
test fail on s390 where name_show is present only once in the kernel,
but also multiple times in modules:
000001b1401cdc20 t name_show
000001b0c05e6c40 t name_show [mdev]
000001b0c0495f30 t name_show [i2c_core]
Fix this by changing the regular expression to only match the function
name.
Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/
Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'arch/powerpc/boot/gamecube-head.S')
| -rw-r--r-- | arch/powerpc/boot/gamecube-head.S | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/arch/powerpc/boot/gamecube-head.S b/arch/powerpc/boot/gamecube-head.S new file mode 100644 index 000000000..ccf5f1045 --- /dev/null +++ b/arch/powerpc/boot/gamecube-head.S @@ -0,0 +1,106 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * arch/powerpc/boot/gamecube-head.S + * + * Nintendo GameCube bootwrapper entry. + * Copyright (C) 2004-2009 The GameCube Linux Team + * Copyright (C) 2008,2009 Albert Herranz + */ + +#include "ppc_asm.h" + +/* + * The entry code does no assumptions regarding: + * - if the data and instruction caches are enabled or not + * - if the MMU is enabled or not + * + * We enable the caches if not already enabled, enable the MMU with an + * identity mapping scheme and jump to the start code. + */ + + .text + + .globl _zimage_start +_zimage_start: + + /* turn the MMU off */ + mfmsr 9 + rlwinm 9, 9, 0, ~((1<<4)|(1<<5)) /* MSR_DR|MSR_IR */ + bcl 20, 31, 1f +1: + mflr 8 + clrlwi 8, 8, 3 /* convert to a real address */ + addi 8, 8, _mmu_off - 1b + mtsrr0 8 + mtsrr1 9 + rfi +_mmu_off: + /* MMU disabled */ + + /* setup BATs */ + isync + li 8, 0 + mtspr 0x210, 8 /* IBAT0U */ + mtspr 0x212, 8 /* IBAT1U */ + mtspr 0x214, 8 /* IBAT2U */ + mtspr 0x216, 8 /* IBAT3U */ + mtspr 0x218, 8 /* DBAT0U */ + mtspr 0x21a, 8 /* DBAT1U */ + mtspr 0x21c, 8 /* DBAT2U */ + mtspr 0x21e, 8 /* DBAT3U */ + + li 8, 0x01ff /* first 16MiB */ + li 9, 0x0002 /* rw */ + mtspr 0x211, 9 /* IBAT0L */ + mtspr 0x210, 8 /* IBAT0U */ + mtspr 0x219, 9 /* DBAT0L */ + mtspr 0x218, 8 /* DBAT0U */ + + lis 8, 0x0c00 /* I/O mem */ + ori 8, 8, 0x3ff /* 32MiB */ + lis 9, 0x0c00 + ori 9, 9, 0x002a /* uncached, guarded, rw */ + mtspr 0x21b, 9 /* DBAT1L */ + mtspr 0x21a, 8 /* DBAT1U */ + + lis 8, 0x0100 /* next 8MiB */ + ori 8, 8, 0x00ff /* 8MiB */ + lis 9, 0x0100 + ori 9, 9, 0x0002 /* rw */ + mtspr 0x215, 9 /* IBAT2L */ + mtspr 0x214, 8 /* IBAT2U */ + mtspr 0x21d, 9 /* DBAT2L */ + mtspr 0x21c, 8 /* DBAT2U */ + + /* enable and invalidate the caches if not already enabled */ + mfspr 8, 0x3f0 /* HID0 */ + andi. 0, 8, (1<<15) /* HID0_ICE */ + bne 1f + ori 8, 8, (1<<15)|(1<<11) /* HID0_ICE|HID0_ICFI*/ +1: + andi. 0, 8, (1<<14) /* HID0_DCE */ + bne 1f + ori 8, 8, (1<<14)|(1<<10) /* HID0_DCE|HID0_DCFI*/ +1: + mtspr 0x3f0, 8 /* HID0 */ + isync + + /* initialize arguments */ + li 3, 0 + li 4, 0 + li 5, 0 + + /* turn the MMU on */ + bcl 20, 31, 1f +1: + mflr 8 + addi 8, 8, _mmu_on - 1b + mfmsr 9 + ori 9, 9, (1<<4)|(1<<5) /* MSR_DR|MSR_IR */ + mtsrr0 8 + mtsrr1 9 + sync + rfi +_mmu_on: + b _zimage_start_lib + |