Last change
on this file since 652 was
347,
checked in by cfuguet, 12 years ago
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Introducing dcache line invalidation mechanism in the boot_ioc_read
function, when using platform without cache coherency.
Introducing two parameters in the defs_platform.h file:
CACHE_COHERENCE
Equals to 0 when no cache coherency
CACHE_LINE_SIZE
Number of bytes in a cache line
- TODO: Use the config register of the cache models to get
this size
Adding new platform configuration file for the
caba_vgsb_xicu_mmu SOCLIB platform.
|
File size:
1.4 KB
|
Line | |
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1 | #ifndef BOOT_IOC_H |
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2 | #define BOOT_IOC_H |
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3 | |
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4 | #ifndef SOCLIB_IOC |
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5 | #include <sdcard.h> |
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6 | #include <spi.h> |
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7 | #else |
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8 | #include <block_device.h> |
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9 | #endif |
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10 | |
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11 | #include <defs.h> |
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12 | #include <boot_tty.h> |
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13 | #include <io.h> |
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14 | |
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15 | /** |
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16 | * boot_ioc_read() |
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17 | * |
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18 | * Transfer data from a file on the block device to a memory buffer. |
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19 | * |
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20 | * \param lba : first block index on the disk |
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21 | * \param buffer : base address of the memory buffer |
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22 | * \param count : number of blocks to be transfered |
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23 | * |
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24 | * \note This is a blocking function. The function returns once the transfer |
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25 | * has finished |
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26 | */ |
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27 | int boot_ioc_read(unsigned int lba, void* buffer, unsigned int count); |
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28 | |
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29 | /** |
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30 | * boot_ioc_init() |
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31 | * |
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32 | * Initialize the SPI controller use to access a SD card |
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33 | */ |
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34 | int boot_ioc_init(); |
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35 | |
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36 | /** |
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37 | * boot_dbuf_invalidate() |
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38 | * |
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39 | * Invalidate all data cache lines corresponding to a memory buffer. |
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40 | */ |
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41 | #if (CACHE_COHERENCE == 0) |
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42 | void boot_dbuf_invalidate( |
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43 | const void * buffer, |
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44 | unsigned int line_size, |
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45 | unsigned int size); |
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46 | #endif |
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47 | |
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48 | /** |
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49 | * boot_ioc_write() |
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50 | * |
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51 | * Transfer data from a memory buffer to a file on the block_device. |
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52 | * |
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53 | * \param lba : first block index on the disk |
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54 | * \param buffer : base address of the memory buffer |
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55 | * \param count : number of blocks to be transfered |
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56 | * |
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57 | * \note The source buffer must be in user address space. |
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58 | */ |
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59 | //int boot_ioc_write(unsigned int lba, void* buffer, unsigned int count); |
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60 | |
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61 | #endif |
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62 | |
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63 | /* |
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64 | * vim: tabstop=4 : shiftwidth=4 : expandtab |
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65 | */ |
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