 d88f3b8a42
			
		
	
	d88f3b8a42
	
	
	
		
			
			It's for *development* only as it doesn't work with lzma-loader due to bigger size. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
		
			
				
	
	
		
			494 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			494 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| --- a/arch/mips/include/asm/r4kcache.h
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| +++ b/arch/mips/include/asm/r4kcache.h
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| @@ -28,6 +28,38 @@
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|  extern void (*r4k_blast_dcache)(void);
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|  extern void (*r4k_blast_icache)(void);
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|  
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| +#if defined(CONFIG_BCM47XX) && !defined(CONFIG_CPU_MIPS32_R2)
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| +#include <asm/paccess.h>
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| +#include <linux/ssb/ssb.h>
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| +#define BCM4710_DUMMY_RREG() bcm4710_dummy_rreg()
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| +
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| +static inline unsigned long bcm4710_dummy_rreg(void)
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| +{
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| +      return *(volatile unsigned long *)(KSEG1ADDR(SSB_ENUM_BASE));
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| +}
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| +
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| +#define BCM4710_FILL_TLB(addr) bcm4710_fill_tlb((void *)(addr))
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| +
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| +static inline unsigned long bcm4710_fill_tlb(void *addr)
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| +{
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| +      return *(unsigned long *)addr;
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| +}
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| +
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| +#define BCM4710_PROTECTED_FILL_TLB(addr) bcm4710_protected_fill_tlb((void *)(addr))
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| +
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| +static inline void bcm4710_protected_fill_tlb(void *addr)
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| +{
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| +      unsigned long x;
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| +      get_dbe(x, (unsigned long *)addr);;
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| +}
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| +
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| +#else
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| +#define BCM4710_DUMMY_RREG()
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| +
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| +#define BCM4710_FILL_TLB(addr)
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| +#define BCM4710_PROTECTED_FILL_TLB(addr)
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| +#endif
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| +
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|  /*
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|   * This macro return a properly sign-extended address suitable as base address
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|   * for indexed cache operations.  Two issues here:
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| @@ -61,6 +93,7 @@ static inline void flush_icache_line_ind
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|  
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|  static inline void flush_dcache_line_indexed(unsigned long addr)
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|  {
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| +	BCM4710_DUMMY_RREG();
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|  	cache_op(Index_Writeback_Inv_D, addr);
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|  }
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|  
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| @@ -84,11 +117,13 @@ static inline void flush_icache_line(uns
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|  
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|  static inline void flush_dcache_line(unsigned long addr)
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|  {
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| +	BCM4710_DUMMY_RREG();
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|  	cache_op(Hit_Writeback_Inv_D, addr);
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|  }
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|  
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|  static inline void invalidate_dcache_line(unsigned long addr)
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|  {
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| +	BCM4710_DUMMY_RREG();
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|  	cache_op(Hit_Invalidate_D, addr);
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|  }
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|  
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| @@ -161,6 +196,7 @@ static inline int protected_flush_icache
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|  #ifdef CONFIG_EVA
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|  		return protected_cachee_op(Hit_Invalidate_I, addr);
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|  #else
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| +		BCM4710_DUMMY_RREG();
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|  		return protected_cache_op(Hit_Invalidate_I, addr);
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|  #endif
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|  	}
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| @@ -174,6 +210,7 @@ static inline int protected_flush_icache
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|   */
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|  static inline int protected_writeback_dcache_line(unsigned long addr)
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|  {
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| +	BCM4710_DUMMY_RREG();
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|  #ifdef CONFIG_EVA
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|  	return protected_cachee_op(Hit_Writeback_Inv_D, addr);
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|  #else
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| @@ -203,8 +240,51 @@ static inline void invalidate_tcache_pag
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|  	unroll(times, _cache_op, insn, op, (addr) + (i++ * (lsize)));	\
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|  } while (0)
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|  
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| +static inline void blast_dcache(void)
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| +{
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| +	unsigned long start = KSEG0;
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| +	unsigned long dcache_size = current_cpu_data.dcache.waysize * current_cpu_data.dcache.ways;
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| +	unsigned long end = (start + dcache_size);
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| +
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| +	do {
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| +		BCM4710_DUMMY_RREG();
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| +		cache_op(Index_Writeback_Inv_D, start);
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| +		start += current_cpu_data.dcache.linesz;
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| +	} while(start < end);
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| +}
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| +
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| +static inline void blast_dcache_page(unsigned long page)
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| +{
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| +	unsigned long start = page;
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| +	unsigned long end = start + PAGE_SIZE;
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| +
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| +	BCM4710_FILL_TLB(start);
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| +	do {
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| +		BCM4710_DUMMY_RREG();
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| +		cache_op(Hit_Writeback_Inv_D, start);
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| +		start += current_cpu_data.dcache.linesz;
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| +	} while(start < end);
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| +}
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| +
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| +static inline void blast_dcache_page_indexed(unsigned long page)
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| +{
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| +	unsigned long start = page;
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| +	unsigned long end = start + PAGE_SIZE;
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| +	unsigned long ws_inc = 1UL << current_cpu_data.dcache.waybit;
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| +	unsigned long ws_end = current_cpu_data.dcache.ways <<
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| +	                       current_cpu_data.dcache.waybit;
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| +	unsigned long ws, addr;
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| +	for (ws = 0; ws < ws_end; ws += ws_inc) {
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| +		start = page + ws;
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| +		for (addr = start; addr < end; addr += current_cpu_data.dcache.linesz) {
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| +			BCM4710_DUMMY_RREG();
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| +			cache_op(Index_Writeback_Inv_D, addr);
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| +		}
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| +	}
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| +}
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| +
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|  /* build blast_xxx, blast_xxx_page, blast_xxx_page_indexed */
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| -#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, extra)	\
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| +#define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, extra, war) \
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|  static inline void extra##blast_##pfx##cache##lsize(void)		\
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|  {									\
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|  	unsigned long start = INDEX_BASE;				\
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| @@ -214,6 +294,7 @@ static inline void extra##blast_##pfx##c
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|  			       current_cpu_data.desc.waybit;		\
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|  	unsigned long ws, addr;						\
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|  									\
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| +	war								\
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|  	for (ws = 0; ws < ws_end; ws += ws_inc)				\
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|  		for (addr = start; addr < end; addr += lsize * 32)	\
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|  			cache_unroll(32, kernel_cache, indexop,		\
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| @@ -225,6 +306,7 @@ static inline void extra##blast_##pfx##c
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|  	unsigned long start = page;					\
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|  	unsigned long end = page + PAGE_SIZE;				\
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|  									\
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| +	war								\
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|  	do {								\
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|  		cache_unroll(32, kernel_cache, hitop, start, lsize);	\
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|  		start += lsize * 32;					\
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| @@ -241,32 +323,33 @@ static inline void extra##blast_##pfx##c
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|  			       current_cpu_data.desc.waybit;		\
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|  	unsigned long ws, addr;						\
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|  									\
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| +	war								\
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|  	for (ws = 0; ws < ws_end; ws += ws_inc)				\
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|  		for (addr = start; addr < end; addr += lsize * 32)	\
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|  			cache_unroll(32, kernel_cache, indexop,		\
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|  				     addr | ws, lsize);			\
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|  }
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|  
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| -__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16, )
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| -__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16, )
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| -__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16, )
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| -__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32, )
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| -__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32, )
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| -__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I_Loongson2, 32, loongson2_)
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| -__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32, )
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| -__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64, )
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| -__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64, )
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| -__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64, )
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| -__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 128, )
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| -__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 128, )
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| -__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128, )
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| -
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| -__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16, )
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| -__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32, )
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| -__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16, )
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| -__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32, )
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| -__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64, )
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| -__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128, )
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| +__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16, , )
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| +__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16, , BCM4710_FILL_TLB(start);)
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| +__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16, , )
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| +__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32, , )
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| +__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32, , BCM4710_FILL_TLB(start);)
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| +__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I_Loongson2, 32, loongson2_, BCM4710_FILL_TLB(start);)
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| +__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32, , )
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| +__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64, , )
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| +__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64, , BCM4710_FILL_TLB(start);)
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| +__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64, , )
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| +__BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 128, , )
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| +__BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 128, , )
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| +__BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128, , )
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| +
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| +__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16, , )
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| +__BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32, , )
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| +__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16, , )
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| +__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32, , )
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| +__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64, , )
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| +__BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128, , )
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|  
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|  #define __BUILD_BLAST_USER_CACHE(pfx, desc, indexop, hitop, lsize) \
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|  static inline void blast_##pfx##cache##lsize##_user_page(unsigned long page) \
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| @@ -291,58 +374,29 @@ __BUILD_BLAST_USER_CACHE(d, dcache, Inde
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|  __BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
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|  
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|  /* build blast_xxx_range, protected_blast_xxx_range */
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| -#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra)	\
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| +#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra, war, war2)	\
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|  static inline void prot##extra##blast_##pfx##cache##_range(unsigned long start, \
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|  						    unsigned long end)	\
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|  {									\
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|  	unsigned long lsize = cpu_##desc##_line_size();			\
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| -	unsigned long lsize_2 = lsize * 2;				\
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| -	unsigned long lsize_3 = lsize * 3;				\
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| -	unsigned long lsize_4 = lsize * 4;				\
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| -	unsigned long lsize_5 = lsize * 5;				\
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| -	unsigned long lsize_6 = lsize * 6;				\
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| -	unsigned long lsize_7 = lsize * 7;				\
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| -	unsigned long lsize_8 = lsize * 8;				\
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|  	unsigned long addr = start & ~(lsize - 1);			\
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| -	unsigned long aend = (end + lsize - 1) & ~(lsize - 1);		\
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| -	int lines = (aend - addr) / lsize;				\
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| -									\
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| -	while (lines >= 8) {						\
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| -		prot##cache_op(hitop, addr);				\
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| -		prot##cache_op(hitop, addr + lsize);			\
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| -		prot##cache_op(hitop, addr + lsize_2);			\
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| -		prot##cache_op(hitop, addr + lsize_3);			\
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| -		prot##cache_op(hitop, addr + lsize_4);			\
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| -		prot##cache_op(hitop, addr + lsize_5);			\
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| -		prot##cache_op(hitop, addr + lsize_6);			\
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| -		prot##cache_op(hitop, addr + lsize_7);			\
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| -		addr += lsize_8;					\
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| -		lines -= 8;						\
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| -	}								\
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| -									\
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| -	if (lines & 0x4) {						\
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| -		prot##cache_op(hitop, addr);				\
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| -		prot##cache_op(hitop, addr + lsize);			\
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| -		prot##cache_op(hitop, addr + lsize_2);			\
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| -		prot##cache_op(hitop, addr + lsize_3);			\
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| -		addr += lsize_4;					\
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| -	}								\
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| +	unsigned long aend = (end - 1) & ~(lsize - 1);			\
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|  									\
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| -	if (lines & 0x2) {						\
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| -		prot##cache_op(hitop, addr);				\
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| -		prot##cache_op(hitop, addr + lsize);			\
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| -		addr += lsize_2;					\
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| -	}								\
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| +	war								\
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|  									\
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| -	if (lines & 0x1) {						\
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| +	while (1) {							\
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| +		war2							\
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|  		prot##cache_op(hitop, addr);				\
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| +		if (addr == aend)					\
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| +			break;						\
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| +		addr += lsize;						\
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|  	}								\
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|  }
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|  
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|  #ifndef CONFIG_EVA
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|  
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| -__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, )
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| -__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, )
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| +__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, , BCM4710_PROTECTED_FILL_TLB(addr); BCM4710_PROTECTED_FILL_TLB(aend);, BCM4710_DUMMY_RREG();)
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| +__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, , , )
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|  
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|  #else
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|  
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| @@ -376,15 +430,15 @@ __BUILD_PROT_BLAST_CACHE_RANGE(d, dcache
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|  __BUILD_PROT_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I)
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|  
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|  #endif
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| -__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, )
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| +__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, , , )
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|  __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson2, \
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| -	protected_, loongson2_)
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| -__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , )
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| -__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, , )
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| -__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , )
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| +	protected_, loongson2_, , )
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| +__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , , BCM4710_FILL_TLB(addr); BCM4710_FILL_TLB(aend);, BCM4710_DUMMY_RREG();)
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| +__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, , , , )
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| +__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , , , )
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|  /* blast_inv_dcache_range */
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| -__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, , )
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| -__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, , )
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| +__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, , , , BCM4710_DUMMY_RREG();)
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| +__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, , , , )
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|  
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|  /* Currently, this is very specific to Loongson-3 */
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|  #define __BUILD_BLAST_CACHE_NODE(pfx, desc, indexop, hitop, lsize)	\
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| --- a/arch/mips/include/asm/stackframe.h
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| +++ b/arch/mips/include/asm/stackframe.h
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| @@ -429,6 +429,10 @@
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|  #else
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|  		.set	push
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|  		.set	arch=r4000
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| +#ifdef CONFIG_BCM47XX
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| +		nop
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| +		nop
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| +#endif
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|  		eret
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|  		.set	pop
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|  #endif
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| --- a/arch/mips/kernel/genex.S
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| +++ b/arch/mips/kernel/genex.S
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| @@ -22,6 +22,19 @@
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|  #include <asm/war.h>
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|  #include <asm/thread_info.h>
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|  
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| +#ifdef CONFIG_BCM47XX
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| +# ifdef eret
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| +#  undef eret
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| +# endif
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| +# define eret 					\
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| +	.set push;				\
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| +	.set noreorder;				\
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| +	 nop; 					\
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| +	 nop;					\
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| +	 eret;					\
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| +	.set pop;
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| +#endif
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| +
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|  	__INIT
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|  
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|  /*
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| @@ -33,6 +46,9 @@
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|  NESTED(except_vec3_generic, 0, sp)
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|  	.set	push
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|  	.set	noat
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| +#ifdef CONFIG_BCM47XX
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| +	nop
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| +#endif
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|  	mfc0	k1, CP0_CAUSE
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|  	andi	k1, k1, 0x7c
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|  #ifdef CONFIG_64BIT
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| @@ -53,6 +69,9 @@ NESTED(except_vec3_r4000, 0, sp)
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|  	.set	push
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|  	.set	arch=r4000
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|  	.set	noat
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| +#ifdef CONFIG_BCM47XX
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| +	nop
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| +#endif
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|  	mfc0	k1, CP0_CAUSE
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|  	li	k0, 31<<2
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|  	andi	k1, k1, 0x7c
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| --- a/arch/mips/mm/c-r4k.c
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| +++ b/arch/mips/mm/c-r4k.c
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| @@ -38,6 +38,9 @@
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|  #include <asm/dma-coherence.h>
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|  #include <asm/mips-cps.h>
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|  
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| +/* For enabling BCM4710 cache workarounds */
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| +static int bcm4710 = 0;
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| +
 | |
|  /*
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|   * Bits describing what cache ops an SMP callback function may perform.
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|   *
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| @@ -190,6 +193,9 @@ static void r4k_blast_dcache_user_page_s
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|  {
 | |
|  	unsigned long  dc_lsize = cpu_dcache_line_size();
 | |
|  
 | |
| +	if (bcm4710)
 | |
| +		r4k_blast_dcache_page = blast_dcache_page;
 | |
| +	else
 | |
|  	if (dc_lsize == 0)
 | |
|  		r4k_blast_dcache_user_page = (void *)cache_noop;
 | |
|  	else if (dc_lsize == 16)
 | |
| @@ -208,6 +214,9 @@ static void r4k_blast_dcache_page_indexe
 | |
|  {
 | |
|  	unsigned long dc_lsize = cpu_dcache_line_size();
 | |
|  
 | |
| +	if (bcm4710)
 | |
| +		r4k_blast_dcache_page_indexed = blast_dcache_page_indexed;
 | |
| +	else
 | |
|  	if (dc_lsize == 0)
 | |
|  		r4k_blast_dcache_page_indexed = (void *)cache_noop;
 | |
|  	else if (dc_lsize == 16)
 | |
| @@ -227,6 +236,9 @@ static void r4k_blast_dcache_setup(void)
 | |
|  {
 | |
|  	unsigned long dc_lsize = cpu_dcache_line_size();
 | |
|  
 | |
| +	if (bcm4710)
 | |
| +		r4k_blast_dcache = blast_dcache;
 | |
| +	else
 | |
|  	if (dc_lsize == 0)
 | |
|  		r4k_blast_dcache = (void *)cache_noop;
 | |
|  	else if (dc_lsize == 16)
 | |
| @@ -1818,6 +1830,17 @@ static void coherency_setup(void)
 | |
|  	 * silly idea of putting something else there ...
 | |
|  	 */
 | |
|  	switch (current_cpu_type()) {
 | |
| +	case CPU_BMIPS3300:
 | |
| +		{
 | |
| +			u32 cm;
 | |
| +			cm = read_c0_diag();
 | |
| +			/* Enable icache */
 | |
| +			cm |= (1 << 31);
 | |
| +			/* Enable dcache */
 | |
| +			cm |= (1 << 30);
 | |
| +			write_c0_diag(cm);
 | |
| +		}
 | |
| +		break;
 | |
|  	case CPU_R4000PC:
 | |
|  	case CPU_R4000SC:
 | |
|  	case CPU_R4000MC:
 | |
| @@ -1864,6 +1887,15 @@ void r4k_cache_init(void)
 | |
|  	extern void build_copy_page(void);
 | |
|  	struct cpuinfo_mips *c = ¤t_cpu_data;
 | |
|  
 | |
| +	/* Check if special workarounds are required */
 | |
| +#if defined(CONFIG_BCM47XX) && !defined(CONFIG_CPU_MIPS32_R2)
 | |
| +	if (current_cpu_data.cputype == CPU_BMIPS32 && (current_cpu_data.processor_id & 0xff) == 0) {
 | |
| +		printk("Enabling BCM4710A0 cache workarounds.\n");
 | |
| +		bcm4710 = 1;
 | |
| +	} else
 | |
| +#endif
 | |
| +		bcm4710 = 0;
 | |
| +
 | |
|  	probe_pcache();
 | |
|  	probe_vcache();
 | |
|  	setup_scache();
 | |
| @@ -1940,7 +1972,15 @@ void r4k_cache_init(void)
 | |
|  	 */
 | |
|  	local_r4k___flush_cache_all(NULL);
 | |
|  
 | |
| +#ifdef CONFIG_BCM47XX
 | |
| +	{
 | |
| +		static void (*_coherency_setup)(void);
 | |
| +		_coherency_setup = (void (*)(void)) KSEG1ADDR(coherency_setup);
 | |
| +		_coherency_setup();
 | |
| +	}
 | |
| +#else
 | |
|  	coherency_setup();
 | |
| +#endif
 | |
|  	board_cache_error_setup = r4k_cache_error_setup;
 | |
|  
 | |
|  	/*
 | |
| --- a/arch/mips/mm/tlbex.c
 | |
| +++ b/arch/mips/mm/tlbex.c
 | |
| @@ -984,6 +984,9 @@ void build_get_pgde32(u32 **p, unsigned
 | |
|  		uasm_i_srl(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
 | |
|  		uasm_i_addu(p, ptr, tmp, ptr);
 | |
|  #else
 | |
| +#ifdef CONFIG_BCM47XX
 | |
| +		uasm_i_nop(p);
 | |
| +#endif
 | |
|  		UASM_i_LA_mostly(p, ptr, pgdc);
 | |
|  #endif
 | |
|  		uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
 | |
| @@ -1345,6 +1348,9 @@ static void build_r4000_tlb_refill_handl
 | |
|  #ifdef CONFIG_64BIT
 | |
|  		build_get_pmde64(&p, &l, &r, K0, K1); /* get pmd in K1 */
 | |
|  #else
 | |
| +# ifdef CONFIG_BCM47XX
 | |
| +		uasm_i_nop(&p);
 | |
| +# endif
 | |
|  		build_get_pgde32(&p, K0, K1); /* get pgd in K1 */
 | |
|  #endif
 | |
|  
 | |
| @@ -1356,6 +1362,9 @@ static void build_r4000_tlb_refill_handl
 | |
|  		build_update_entries(&p, K0, K1);
 | |
|  		build_tlb_write_entry(&p, &l, &r, tlb_random);
 | |
|  		uasm_l_leave(&l, p);
 | |
| +#ifdef CONFIG_BCM47XX
 | |
| +		uasm_i_nop(&p);
 | |
| +#endif
 | |
|  		uasm_i_eret(&p); /* return from trap */
 | |
|  	}
 | |
|  #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
 | |
| @@ -2056,6 +2065,9 @@ build_r4000_tlbchange_handler_head(u32 *
 | |
|  #ifdef CONFIG_64BIT
 | |
|  	build_get_pmde64(p, l, r, wr.r1, wr.r2); /* get pmd in ptr */
 | |
|  #else
 | |
| +# ifdef CONFIG_BCM47XX
 | |
| +	uasm_i_nop(p);
 | |
| +# endif
 | |
|  	build_get_pgde32(p, wr.r1, wr.r2); /* get pgd in ptr */
 | |
|  #endif
 | |
|  
 | |
| @@ -2102,6 +2114,9 @@ build_r4000_tlbchange_handler_tail(u32 *
 | |
|  	build_tlb_write_entry(p, l, r, tlb_indexed);
 | |
|  	uasm_l_leave(l, *p);
 | |
|  	build_restore_work_registers(p);
 | |
| +#ifdef CONFIG_BCM47XX
 | |
| +	uasm_i_nop(p);
 | |
| +#endif
 | |
|  	uasm_i_eret(p); /* return from trap */
 | |
|  
 | |
|  #ifdef CONFIG_64BIT
 |