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MIPS: BMIPS: Fix compilation for BMIPS5000

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Commit 02b849f761 ("MIPS: Get rid of the
use of .macro in C code.") replaced the macro usage but missed
the accessors in bmips.h, causing the following build error:

  CC      arch/mips/kernel/smp-bmips.o
{standard input}: Assembler messages:
{standard input}:951: Error: Unrecognized opcode `_ssnop'
{standard input}:952: Error: Unrecognized opcode `_ssnop'
(...)
make[6]: *** [arch/mips/kernel/smp-bmips.o] Error 1

Fix by rewriting the inline assembler using existing inline functions.
The generated code should stay unchanged.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/5644/
Reviewed-by: Jonas Gorski <jogo@openwrt.org>
This commit is contained in:
Ralf Baechle 2013-08-08 10:49:29 +02:00
parent 7848ea7902
commit 43d3093903
1 changed files with 22 additions and 33 deletions
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55
arch/mips/include/asm/bmips.h
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@ -65,44 +65,33 @@ static inline unsigned long bmips_read_zscm_reg(unsigned int offset)
{
unsigned long ret;
__asm__ __volatile__(
".set push\n"
".set noreorder\n"
"cache %1, 0(%2)\n"
"sync\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
"mfc0 %0, $28, 3\n"
"_ssnop\n"
".set pop\n"
: "=&r" (ret)
: "i" (Index_Load_Tag_S), "r" (ZSCM_REG_BASE + offset)
: "memory");
barrier();
cache_op(Index_Load_Tag_S, ZSCM_REG_BASE + offset);
__sync();
_ssnop();
_ssnop();
_ssnop();
_ssnop();
_ssnop();
_ssnop();
_ssnop();
ret = read_c0_ddatalo();
_ssnop();
return ret;
}
static inline void bmips_write_zscm_reg(unsigned int offset, unsigned long data)
{
__asm__ __volatile__(
".set push\n"
".set noreorder\n"
"mtc0 %0, $28, 3\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
"cache %1, 0(%2)\n"
"_ssnop\n"
"_ssnop\n"
"_ssnop\n"
: /* no outputs */
: "r" (data),
"i" (Index_Store_Tag_S), "r" (ZSCM_REG_BASE + offset)
: "memory");
write_c0_ddatalo(data);
_ssnop();
_ssnop();
_ssnop();
cache_op(Index_Store_Tag_S, ZSCM_REG_BASE + offset);
_ssnop();
_ssnop();
_ssnop();
barrier();
}
#endif /* !defined(__ASSEMBLY__) */