diff options
| author | Graf Yang <graf.yang@analog.com> | 2009-01-07 23:14:39 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 23:14:39 +0800 |
| commit | 6b3087c64a92a36ae20d33479b4df6d7afc910d4 (patch) | |
| tree | 95984fc623658ebf150d0d912a7f6c5a0301a5a9 /arch/blackfin/mach-common/head.S | |
| parent | c51b4488cd5bff08ed5690a8f303ff7f0894da2a (diff) | |
Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to Blackfin header files
and machine common code
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/mach-common/head.S')
| -rw-r--r-- | arch/blackfin/mach-common/head.S | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S index c1dcaebbd3a..a621ae44481 100644 --- a/arch/blackfin/mach-common/head.S +++ b/arch/blackfin/mach-common/head.S @@ -13,6 +13,7 @@ #include <asm/blackfin.h> #include <asm/thread_info.h> #include <asm/trace.h> +#include <asm/asm-offsets.h> __INIT @@ -111,33 +112,26 @@ ENTRY(__start) * This happens here, since L1 gets clobbered * below */ - p0.l = _saved_retx; - p0.h = _saved_retx; + GET_PDA(p0, r0); + r7 = [p0 + PDA_RETX]; p1.l = _init_saved_retx; p1.h = _init_saved_retx; - r0 = [p0]; - [p1] = r0; + [p1] = r7; - p0.l = _saved_dcplb_fault_addr; - p0.h = _saved_dcplb_fault_addr; + r7 = [p0 + PDA_DCPLB]; p1.l = _init_saved_dcplb_fault_addr; p1.h = _init_saved_dcplb_fault_addr; - r0 = [p0]; - [p1] = r0; + [p1] = r7; - p0.l = _saved_icplb_fault_addr; - p0.h = _saved_icplb_fault_addr; + r7 = [p0 + PDA_ICPLB]; p1.l = _init_saved_icplb_fault_addr; p1.h = _init_saved_icplb_fault_addr; - r0 = [p0]; - [p1] = r0; + [p1] = r7; - p0.l = _saved_seqstat; - p0.h = _saved_seqstat; + r7 = [p0 + PDA_SEQSTAT]; p1.l = _init_saved_seqstat; p1.h = _init_saved_seqstat; - r0 = [p0]; - [p1] = r0; + [p1] = r7; #endif /* Initialize stack pointer */ @@ -255,6 +249,9 @@ ENTRY(_real_start) sp = sp + p1; usp = sp; fp = sp; + sp += -12; + call _init_pda + sp += 12; jump.l _start_kernel; ENDPROC(_real_start) |