From 58bd317e29f4abf7f950891339d2a6a78ddf7903 Mon Sep 17 00:00:00 2001 From: Macpaul Lin Date: Tue, 21 Sep 2010 15:13:34 +0800 Subject: xfree86: nds32: add nds32 support for compiler related mmio codes Add nds32 support for compiler related mmio codes. It includes byte-swap or non-swap operations. Signed-off-by: Macpaul Lin Acked-by: Tiago Vignatti Signed-off-by: Keith Packard --- hw/xfree86/common/compiler.h | 410 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 410 insertions(+) diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h index d037c8450..958f8d027 100644 --- a/hw/xfree86/common/compiler.h +++ b/hw/xfree86/common/compiler.h @@ -1018,6 +1018,355 @@ xf_outl(unsigned short port, unsigned int val) #define outw xf_outw #define outl xf_outl +# elif defined(__nds32__) + +/* + * Assume all port access are aligned. We need to revise this implementation + * if there is unaligned port access. For ldq_u, ldl_u, ldw_u, stq_u, stl_u and + * stw_u, they are assumed unaligned. + */ + +#define barrier() /* no barrier */ + +#define PORT_SIZE long + +static __inline__ unsigned char +xf86ReadMmio8(__volatile__ void *base, const unsigned long offset) +{ + return *(volatile unsigned char *)((unsigned char *)base + offset) ; +} + +static __inline__ void +xf86WriteMmio8(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + *(volatile unsigned char *)((unsigned char *)base + offset) = val ; + barrier(); +} + +static __inline__ void +xf86WriteMmio8NB(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + *(volatile unsigned char *)((unsigned char *)base + offset) = val ; +} + +static __inline__ unsigned short +xf86ReadMmio16Swap(__volatile__ void *base, const unsigned long offset) +{ + unsigned long addr = ((unsigned long)base) + offset; + unsigned short ret; + + __asm__ __volatile__( + "lhi %0, [%1];\n\t" + "wsbh %0, %0;\n\t" + : "=r" (ret) + : "r" (addr)); + return ret; +} + +static __inline__ unsigned short +xf86ReadMmio16(__volatile__ void *base, const unsigned long offset) +{ + return *(volatile unsigned short *)((char *)base + offset) ; +} + +static __inline__ void +xf86WriteMmio16Swap(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + unsigned long addr = ((unsigned long)base) + offset; + + __asm__ __volatile__( + "wsbh %0, %0;\n\t" + "shi %0, [%1];\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); + barrier(); +} + +static __inline__ void +xf86WriteMmio16(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + *(volatile unsigned short *)((unsigned char *)base + offset) = val ; + barrier(); +} + +static __inline__ void +xf86WriteMmio16SwapNB(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + unsigned long addr = ((unsigned long)base) + offset; + + __asm__ __volatile__( + "wsbh %0, %0;\n\t" + "shi %0, [%1];\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); +} + +static __inline__ void +xf86WriteMmio16NB(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + *(volatile unsigned short *)((unsigned char *)base + offset) = val ; +} + +static __inline__ unsigned int +xf86ReadMmio32Swap(__volatile__ void *base, const unsigned long offset) +{ + unsigned long addr = ((unsigned long)base) + offset; + unsigned int ret; + + __asm__ __volatile__( + "lwi %0, [%1];\n\t" + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + : "=r" (ret) + : "r" (addr)); + return ret; +} + +static __inline__ unsigned int +xf86ReadMmio32(__volatile__ void *base, const unsigned long offset) +{ + return *(volatile unsigned int *)((unsigned char *)base + offset) ; +} + +static __inline__ void +xf86WriteMmio32Swap(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + unsigned long addr = ((unsigned long)base) + offset; + + __asm__ __volatile__( + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + "swi %0, [%1];\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); + barrier(); +} + +static __inline__ void +xf86WriteMmio32(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + *(volatile unsigned int *)((unsigned char *)base + offset) = val ; + barrier(); +} + +static __inline__ void +xf86WriteMmio32SwapNB(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + unsigned long addr = ((unsigned long)base) + offset; + + __asm__ __volatile__( + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + "swi %0, [%1];\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); +} + +static __inline__ void +xf86WriteMmio32NB(__volatile__ void *base, const unsigned long offset, + const unsigned int val) +{ + *(volatile unsigned int *)((unsigned char *)base + offset) = val ; +} + +# if defined(NDS32_MMIO_SWAP) +static __inline__ void +outb(unsigned PORT_SIZE port, unsigned char val) +{ + xf86WriteMmio8(IOPortBase, port, val); +} + +static __inline__ void +outw(unsigned PORT_SIZE port, unsigned short val) +{ + xf86WriteMmio16Swap(IOPortBase, port, val); +} + +static __inline__ void +outl(unsigned PORT_SIZE port, unsigned int val) +{ + xf86WriteMmio32Swap(IOPortBase, port, val); +} + +static __inline__ unsigned int +inb(unsigned PORT_SIZE port) +{ + return xf86ReadMmio8(IOPortBase, port); +} + +static __inline__ unsigned int +inw(unsigned PORT_SIZE port) +{ + return xf86ReadMmio16Swap(IOPortBase, port); +} + +static __inline__ unsigned int +inl(unsigned PORT_SIZE port) +{ + return xf86ReadMmio32Swap(IOPortBase, port); +} + +static __inline__ unsigned long ldq_u(unsigned long *p) +{ + unsigned long addr = (unsigned long)p; + unsigned int ret; + + __asm__ __volatile__( + "lmw.bi %0, [%1], %0, 0;\n\t" + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + : "=r" (ret) + : "r" (addr)); + return ret; +} + +static __inline__ unsigned long ldl_u(unsigned int *p) +{ + unsigned long addr = (unsigned long)p; + unsigned int ret; + + __asm__ __volatile__( + "lmw.bi %0, [%1], %0, 0;\n\t" + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + : "=r" (ret) + : "r" (addr)); + return ret; +} + +static __inline__ void stq_u(unsigned long val, unsigned long *p) +{ + unsigned long addr = (unsigned long)p; + + __asm__ __volatile__( + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + "smw.bi %0, [%1], %0, 0;\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); +} + +static __inline__ void stl_u(unsigned long val, unsigned int *p) +{ + unsigned long addr = (unsigned long)p; + + __asm__ __volatile__( + "wsbh %0, %0;\n\t" + "rotri %0, %0, 16;\n\t" + "smw.bi %0, [%1], %0, 0;\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); +} + +# else /* !NDS32_MMIO_SWAP */ +static __inline__ void +outb(unsigned PORT_SIZE port, unsigned char val) +{ + *(volatile unsigned char*)(((unsigned PORT_SIZE)(port))) = val; + barrier(); +} + +static __inline__ void +outw(unsigned PORT_SIZE port, unsigned short val) +{ + *(volatile unsigned short*)(((unsigned PORT_SIZE)(port))) = val; + barrier(); +} + +static __inline__ void +outl(unsigned PORT_SIZE port, unsigned int val) +{ + *(volatile unsigned int*)(((unsigned PORT_SIZE)(port))) = val; + barrier(); +} +static __inline__ unsigned int +inb(unsigned PORT_SIZE port) +{ + return *(volatile unsigned char*)(((unsigned PORT_SIZE)(port))); +} + +static __inline__ unsigned int +inw(unsigned PORT_SIZE port) +{ + return *(volatile unsigned short*)(((unsigned PORT_SIZE)(port))); +} + +static __inline__ unsigned int +inl(unsigned PORT_SIZE port) +{ + return *(volatile unsigned int*)(((unsigned PORT_SIZE)(port))); +} + +static __inline__ unsigned long ldq_u(unsigned long *p) +{ + unsigned long addr = (unsigned long)p; + unsigned int ret; + + __asm__ __volatile__( + "lmw.bi %0, [%1], %0, 0;\n\t" + : "=r" (ret) + : "r" (addr)); + return ret; +} + +static __inline__ unsigned long ldl_u(unsigned int *p) +{ + unsigned long addr = (unsigned long)p; + unsigned int ret; + + __asm__ __volatile__( + "lmw.bi %0, [%1], %0, 0;\n\t" + : "=r" (ret) + : "r" (addr)); + return ret; +} + + +static __inline__ void stq_u(unsigned long val, unsigned long *p) +{ + unsigned long addr = (unsigned long)p; + + __asm__ __volatile__( + "smw.bi %0, [%1], %0, 0;\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); +} + +static __inline__ void stl_u(unsigned long val, unsigned int *p) +{ + unsigned long addr = (unsigned long)p; + + __asm__ __volatile__( + "smw.bi %0, [%1], %0, 0;\n\t" + : /* No outputs */ + : "r" (val), "r" (addr)); +} +# endif /* NDS32_MMIO_SWAP */ + +# if (((X_BYTE_ORDER == X_BIG_ENDIAN) && !defined(NDS32_MMIO_SWAP)) || ((X_BYTE_ORDER != X_BIG_ENDIAN) && defined(NDS32_MMIO_SWAP))) +# define ldw_u(p) ((*(unsigned char *)(p)) << 8 | \ + (*((unsigned char *)(p)+1))) +# define stw_u(v,p) (*(unsigned char *)(p)) = ((v) >> 8); \ + (*((unsigned char *)(p)+1)) = (v) +# else +# define ldw_u(p) ((*(unsigned char *)(p)) | \ + (*((unsigned char *)(p)+1)<<8)) +# define stw_u(v,p) (*(unsigned char *)(p)) = (v); \ + (*((unsigned char *)(p)+1)) = ((v) >> 8) +# endif + +# define mem_barrier() /* XXX: nop for now */ +# define write_mem_barrier() /* XXX: nop for now */ + # else /* ix86 */ # if !defined(__SUNPRO_C) @@ -1338,6 +1687,67 @@ extern _X_EXPORT void xf86SlowBCopyToBus(unsigned char *, unsigned char *, int); # define MMIO_MOVE32(base, offset, val) \ xf86WriteMmio32Be(base, offset, (CARD32)(val)) +# elif defined(__nds32__) + /* + * we provide byteswapping and no byteswapping functions here + * with no byteswapping as default; when endianness of CPU core + * and I/O devices don't match, byte swapping is necessary + * drivers that need byteswapping should define NDS32_MMIO_SWAP + */ +# define MMIO_IN8(base, offset) xf86ReadMmio8(base, offset) +# define MMIO_OUT8(base, offset, val) \ + xf86WriteMmio8(base, offset, (CARD8)(val)) +# define MMIO_ONB8(base, offset, val) \ + xf86WriteMmioNB8(base, offset, (CARD8)(val)) + +# if defined(NDS32_MMIO_SWAP) /* byteswapping */ +# define MMIO_IN16(base, offset) xf86ReadMmio16Swap(base, offset) +# define MMIO_IN32(base, offset) xf86ReadMmio32Swap(base, offset) +# define MMIO_OUT16(base, offset, val) \ + xf86WriteMmio16Swap(base, offset, (CARD16)(val)) +# define MMIO_OUT32(base, offset, val) \ + xf86WriteMmio32Swap(base, offset, (CARD32)(val)) +# define MMIO_ONB16(base, offset, val) \ + xf86WriteMmioNB16Swap(base, offset, (CARD16)(val)) +# define MMIO_ONB32(base, offset, val) \ + xf86WriteMmioNB32Swap(base, offset, (CARD32)(val)) +# else /* no byteswapping is the default */ +# define MMIO_IN16(base, offset) xf86ReadMmio16(base, offset) +# define MMIO_IN32(base, offset) xf86ReadMmio32(base, offset) +# define MMIO_OUT16(base, offset, val) \ + xf86WriteMmio16(base, offset, (CARD16)(val)) +# define MMIO_OUT32(base, offset, val) \ + xf86WriteMmio32(base, offset, (CARD32)(val)) +# define MMIO_ONB16(base, offset, val) \ + xf86WriteMmioNB16(base, offset, (CARD16)(val)) +# define MMIO_ONB32(base, offset, val) \ + xf86WriteMmioNB32(base, offset, (CARD32)(val)) +# endif + +# define MMIO_MOVE32(base, offset, val) \ + xf86WriteMmio32(base, offset, (CARD32)(val)) + +#ifdef N1213_HC /* for NDS32 N1213 hardcore */ +static __inline__ void nds32_flush_icache(char *addr) +{ + __asm__ volatile ( + "isync %0;" + "msync;" + "isb;" + "cctl %0,L1I_VA_INVAL;" + "isb;" + : : "r"(addr) : "memory"); +} +#else +static __inline__ void nds32_flush_icache(char *addr) +{ + __asm__ volatile ( + "isync %0;" + "isb;" + : : "r"(addr) : "memory"); +} +#endif + # else /* !__alpha__ && !__powerpc__ && !__sparc__ */ # define MMIO_IN8(base, offset) \ -- cgit v1.2.3