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54 | pj | 1 | #include <stdint.h> |
2 | |||
3 | #ifndef __alpha__ |
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4 | |||
5 | #define v_readb(addr) (*(volatile uint8_t *) (MMIO_POINTER+(addr))) |
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6 | #define v_readw(addr) (*(volatile uint16_t *) (MMIO_POINTER+(addr))) |
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7 | #define v_readl(addr) (*(volatile uint32_t *) (MMIO_POINTER+(addr))) |
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8 | |||
9 | #define v_writeb(b,addr) (*(volatile uint8_t *) (MMIO_POINTER+(addr)) = (b)) |
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10 | #define v_writew(b,addr) (*(volatile uint16_t *) (MMIO_POINTER+(addr)) = (b)) |
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11 | #define v_writel(b,addr) (*(volatile uint32_t *) (MMIO_POINTER+(addr)) = (b)) |
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12 | |||
13 | #else |
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14 | |||
15 | #define vip volatile int * |
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16 | #define vuip volatile unsigned int * |
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17 | #define vulp volatile unsigned long * |
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18 | |||
19 | #define mb() \ |
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20 | __asm__ __volatile__("mb": : :"memory") |
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21 | |||
22 | #define __kernel_extbl(val, shift) \ |
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23 | ({ unsigned long __kir; \ |
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24 | __asm__("extbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \ |
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25 | __kir; }) |
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26 | #define __kernel_extwl(val, shift) \ |
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27 | ({ unsigned long __kir; \ |
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28 | __asm__("extwl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \ |
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29 | __kir; }) |
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30 | |||
31 | static inline uint8_t v_readb(unsigned long addr) |
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32 | { |
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33 | unsigned long result; |
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34 | |||
35 | result = *(vip) ((addr << 5) + SPARSE_MMIO + 0x00); |
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36 | return __kernel_extbl(result, addr & 3); |
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37 | } |
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38 | |||
39 | static inline uint16_t v_readw(unsigned long addr) |
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40 | { |
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41 | unsigned long result; |
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42 | |||
43 | result = *(vip) ((addr << 5) + SPARSE_MMIO + 0x08); |
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44 | return __kernel_extwl(result, addr & 3); |
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45 | } |
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46 | |||
47 | static inline uint32_t v_readl(unsigned long addr) |
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48 | { |
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49 | return *(vuip) ((addr << 5) + SPARSE_MMIO + 0x18); |
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50 | } |
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51 | |||
52 | static inline void v_writeb(uint8_t b, unsigned long addr) |
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53 | { |
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54 | *(vuip) ((addr << 5) + SPARSE_MMIO + 0x00) = b * 0x01010101; |
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55 | mb(); |
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56 | } |
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57 | |||
58 | static inline void v_writew(uint16_t b, unsigned long addr) |
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59 | { |
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60 | *(vuip) ((addr << 5) + SPARSE_MMIO + 0x08) = b * 0x00010001; |
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61 | mb(); |
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62 | } |
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63 | |||
64 | static inline void v_writel(uint32_t b, unsigned long addr) |
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65 | { |
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66 | *(vuip) ((addr << 5) + SPARSE_MMIO + 0x18) = b; |
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67 | mb(); |
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68 | } |
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69 | |||
70 | #endif /* __alpha__ */ |