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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-30 12:39:00 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-05-03 01:20:27 +1000 |
| commit | 1ae99b4b924ab10452da653baed29d3883705519 (patch) | |
| tree | eac5781d3a307ef9e582f2abb50c5855ca2f4794 /arch/powerpc/kernel/head_32.h | |
| parent | powerpc/32: Enter exceptions with MSR_EE unset (diff) | |
| download | linux-dev-1ae99b4b924ab10452da653baed29d3883705519.tar.xz linux-dev-1ae99b4b924ab10452da653baed29d3883705519.zip | |
powerpc/32: get rid of COPY_EE in exception entry
EXC_XFER_TEMPLATE() is not called with COPY_EE anymore so
we can get rid of copyee parameters and related COPY_EE and NOCOPY
macros.
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[splited out from benh RFC patch]
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/head_32.h')
| -rw-r--r-- | arch/powerpc/kernel/head_32.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 8881b6887841..14cb0af2f494 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -103,28 +103,24 @@ label: addi r3,r1,STACK_FRAME_OVERHEAD; \ xfer(n, hdlr) -#define EXC_XFER_TEMPLATE(hdlr, trap, msr, copyee, tfer, ret) \ +#define EXC_XFER_TEMPLATE(hdlr, trap, msr, tfer, ret) \ li r10,trap; \ stw r10,_TRAP(r11); \ LOAD_MSR_KERNEL(r10, msr); \ - copyee(r10, r9); \ bl tfer; \ .long hdlr; \ .long ret -#define COPY_EE(d, s) rlwimi d,s,0,MSR_EE -#define NOCOPY(d, s) - #define EXC_XFER_STD(n, hdlr) \ - EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, NOCOPY, transfer_to_handler_full, \ + EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, transfer_to_handler_full, \ ret_from_except_full) #define EXC_XFER_LITE(n, hdlr) \ - EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, NOCOPY, transfer_to_handler, \ + EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, transfer_to_handler, \ ret_from_except) #define EXC_XFER_SYS(n, hdlr) \ - EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL | MSR_EE, NOCOPY, transfer_to_handler, \ + EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL | MSR_EE, transfer_to_handler, \ ret_from_except) #endif /* __HEAD_32_H__ */ |