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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-30 14:38:52 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-05-02 17:20:27 +0200 |
| commit | 1d3034aed4489ae96bc7eec5050096944fd181f6 (patch) | |
| tree | 1ed8b80757fb70be128d4e2ca6f7b453a2a5a882 /arch/powerpc/kernel | |
| parent | powerpc/32: move LOAD_MSR_KERNEL() into head_32.h and use it (diff) | |
| download | linux-1d3034aed4489ae96bc7eec5050096944fd181f6.tar.xz linux-1d3034aed4489ae96bc7eec5050096944fd181f6.zip | |
powerpc/32: make the 6xx/8xx EXC_XFER_TEMPLATE() similar to the 40x/booke one
6xx/8xx EXC_XFER_TEMPLATE() macro adds a i##n symbol which is
unused and can be removed.
40x and booke EXC_XFER_TEMPLATE() macros takes msr from the caller
while the 6xx/8xx version uses only MSR_KERNEL as msr value.
This patch modifies the 6xx/8xx version to make it similar to the
40x and booke versions.
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')
| -rw-r--r-- | arch/powerpc/kernel/head_32.h | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index cf3d00844597..985758cbf577 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -99,13 +99,12 @@ label: addi r3,r1,STACK_FRAME_OVERHEAD; \ xfer(n, hdlr) -#define EXC_XFER_TEMPLATE(n, hdlr, trap, copyee, tfer, ret) \ +#define EXC_XFER_TEMPLATE(hdlr, trap, msr, copyee, tfer, ret) \ li r10,trap; \ stw r10,_TRAP(r11); \ - LOAD_MSR_KERNEL(r10, MSR_KERNEL); \ + LOAD_MSR_KERNEL(r10, msr); \ copyee(r10, r9); \ bl tfer; \ -i##n: \ .long hdlr; \ .long ret @@ -113,19 +112,19 @@ i##n: \ #define NOCOPY(d, s) #define EXC_XFER_STD(n, hdlr) \ - EXC_XFER_TEMPLATE(n, hdlr, n, NOCOPY, transfer_to_handler_full, \ + EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, NOCOPY, transfer_to_handler_full, \ ret_from_except_full) #define EXC_XFER_LITE(n, hdlr) \ - EXC_XFER_TEMPLATE(n, hdlr, n+1, NOCOPY, transfer_to_handler, \ + EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, NOCOPY, transfer_to_handler, \ ret_from_except) #define EXC_XFER_EE(n, hdlr) \ - EXC_XFER_TEMPLATE(n, hdlr, n, COPY_EE, transfer_to_handler_full, \ + EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, COPY_EE, transfer_to_handler_full, \ ret_from_except_full) #define EXC_XFER_EE_LITE(n, hdlr) \ - EXC_XFER_TEMPLATE(n, hdlr, n+1, COPY_EE, transfer_to_handler, \ + EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, COPY_EE, transfer_to_handler, \ ret_from_except) #endif /* __HEAD_32_H__ */ |