Rev 424 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 424 | giacomo | 1 | /** |
| 2 | * machine_specific_memory_setup - Hook for machine specific memory setup. |
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| 3 | * |
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| 4 | * Description: |
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| 5 | * This is included late in kernel/setup.c so that it can make |
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| 6 | * use of all of the static functions. |
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| 7 | **/ |
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| 8 | |||
| 9 | static inline char * __init machine_specific_memory_setup(void) |
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| 10 | { |
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| 11 | char *who; |
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| 12 | unsigned long low_mem_size, lower_high, higher_high; |
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| 13 | |||
| 14 | |||
| 15 | who = "BIOS (common area)"; |
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| 16 | |||
| 17 | low_mem_size = ((*(unsigned char *)__va(PC9800SCA_BIOS_FLAG) & 7) + 1) << 17; |
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| 18 | add_memory_region(0, low_mem_size, 1); |
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| 19 | lower_high = (__u32) *(__u8 *) bus_to_virt(PC9800SCA_EXPMMSZ) << 17; |
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| 20 | higher_high = (__u32) *(__u16 *) bus_to_virt(PC9800SCA_MMSZ16M) << 20; |
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| 21 | if (lower_high != 0x00f00000UL) { |
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| 22 | add_memory_region(HIGH_MEMORY, lower_high, 1); |
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| 23 | add_memory_region(0x01000000UL, higher_high, 1); |
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| 24 | } |
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| 25 | else |
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| 26 | add_memory_region(HIGH_MEMORY, lower_high + higher_high, 1); |
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| 27 | |||
| 28 | return who; |
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| 29 | } |