大家帮我看看这几行代码，是不是数据类型有错或者是别的原因导致出现这样的错误

unsigned long hpi_vbase;
unsigned int *tmp;

hpi_vbase =  (unsigned long) ioremap_nocache (HPI_PHYSICAL_BASEADDR, HPI_PHYSICAL_size);

#define HPIA_LW                        (hpi_vbase+0x04)
#define HPIA_HW                        (hpi_vbase+0x06)
#define HPIA_LR                        (hpi_vbase+0x14)
#define HPIA_HR                        (hpi_vbase+0x16)

HPIA_LW和HPIA_LR的区别实际上就是一个是写使能有效，一个是读使能有效，转换成指针指向的外设空间是一样的

writew (0x1234, HPIA_LW);  写入1234
writew (0x5678, HPIA_HW);  写入5678    
*tmp++ = readw (HPIA_LR);  读出1212  , 应该读出1234
*tmp++ = readw (HPIA_HR);  读出5656， 应该读出5678


writel (0x1234, HPIA_LW);  写入1234
writel (0x5678, HPIA_HW);  写入5678    
*tmp++ = readw (HPIA_LR);  读出1234
*tmp++ = readw (HPIA_HR);  读出5656

writel (0x1234, HPIA_LW);  写入1234
writel (0x5678, HPIA_HW);  写入5678    
*tmp++ = readb (HPIA_LR);  读出12
*tmp++ = readb (HPIA_HR);  读出56


#define readw(c) ({ unsigned int __v = (*(volatile unsigned short *)((unsigned long)(c))); __v; })
#define writew(v,c)                (*(volatile unsigned short *)((unsigned long)(c))=v  
#define writel(v,c)                    (*(volatile unsigned int  *)((unsigned long)c))=v
#define readl(c) ({ unsigned int __v = (*(volatile unsigned int *)((unsigned long)(c))); __v; })

最好把错误信息贴出来

hpi_vbase =  (unsigned long) ioremap_nocache (HPI_PHYSICAL_BASEADDR, HPI_PHYSICAL_size); 

这代码是在函数体内吗?