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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-12 13:50:41 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 04:22:09 +0200 |
| commit | 4c0104a83fc3990a76a01a2f4e504251fa9814c4 (patch) | |
| tree | 5e98d03e8e6148c3e75828a511eb13f158f693f9 /arch/powerpc/kernel/entry_32.S | |
| parent | powerpc/32: Only restore non volatile registers when required (diff) | |
| download | linux-4c0104a83fc3990a76a01a2f4e504251fa9814c4.tar.xz linux-4c0104a83fc3990a76a01a2f4e504251fa9814c4.zip | |
powerpc/32: Dismantle EXC_XFER_STD/LITE/TEMPLATE
In order to get more control in exception prolog, dismantle
all non standard exception macros, finishing with EXC_XFER_STD
and EXC_XFER_LITE and EXC_XFER_TEMPLATE.
Also remove transfer_to_handler_full and ret_from_except and
ret_from_except_full as they are not used anymore.
Last parameter of EXCEPTION() is now ignored, will be removed
in a later patch to avoid too much churn.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ca5795d04a220586b7037dbbbe6951dfa9e768eb.1615552867.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index e6adb6882bde..bcf8452ebb58 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -48,30 +48,6 @@ */ .align 12 -#ifdef CONFIG_BOOKE - .globl mcheck_transfer_to_handler -mcheck_transfer_to_handler: - /* fall through */ -_ASM_NOKPROBE_SYMBOL(mcheck_transfer_to_handler) - - .globl debug_transfer_to_handler -debug_transfer_to_handler: - /* fall through */ -_ASM_NOKPROBE_SYMBOL(debug_transfer_to_handler) - - .globl crit_transfer_to_handler -crit_transfer_to_handler: - /* fall through */ -_ASM_NOKPROBE_SYMBOL(crit_transfer_to_handler) -#endif - -#ifdef CONFIG_40x - .globl crit_transfer_to_handler -crit_transfer_to_handler: - /* fall through */ -_ASM_NOKPROBE_SYMBOL(crit_transfer_to_handler) -#endif - /* * This code finishes saving the registers to the exception frame * and jumps to the appropriate handler for the exception, turning @@ -79,13 +55,6 @@ _ASM_NOKPROBE_SYMBOL(crit_transfer_to_handler) * Note that we rely on the caller having set cr0.eq iff the exception * occurred in kernel mode (i.e. MSR:PR = 0). */ - .globl transfer_to_handler_full -transfer_to_handler_full: -_ASM_NOKPROBE_SYMBOL(transfer_to_handler_full) - /* fall through */ - - .globl transfer_to_handler -transfer_to_handler: .globl prepare_transfer_to_handler prepare_transfer_to_handler: SAVE_NVGPRS(r11) @@ -136,7 +105,6 @@ transfer_to_handler_cont: b fast_exception_return #endif _ASM_NOKPROBE_SYMBOL(prepare_transfer_to_handler) -_ASM_NOKPROBE_SYMBOL(transfer_to_handler) _ASM_NOKPROBE_SYMBOL(transfer_to_handler_cont) .globl transfer_to_syscall @@ -352,18 +320,10 @@ _ASM_NOKPROBE_SYMBOL(fast_exception_return) 3: li r10,-1 stw r10,_TRAP(r11) - bl transfer_to_handler_full + prepare_transfer_to_handler bl unrecoverable_exception trap /* should not get here */ - .globl ret_from_except_full -ret_from_except_full: - /* fall through */ - - .globl ret_from_except -ret_from_except: -_ASM_NOKPROBE_SYMBOL(ret_from_except) - .globl interrupt_return interrupt_return: lwz r4,_MSR(r1) |