diff options
Diffstat (limited to 'drivers/staging/tidspbridge/include/dspbridge/cmmdefs.h')
| -rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/cmmdefs.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/include/dspbridge/cmmdefs.h b/drivers/staging/tidspbridge/include/dspbridge/cmmdefs.h new file mode 100644 index 000000000000..fbff372d2f51 --- /dev/null +++ b/drivers/staging/tidspbridge/include/dspbridge/cmmdefs.h @@ -0,0 +1,105 @@ +/* + * cmmdefs.h + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * Global MEM constants and types. + * + * Copyright (C) 2008 Texas Instruments, Inc. + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#ifndef CMMDEFS_ +#define CMMDEFS_ + +#include <dspbridge/list.h> + +/* Cmm attributes used in cmm_create() */ +struct cmm_mgrattrs { + /* Minimum SM allocation; default 32 bytes. */ + u32 ul_min_block_size; +}; + +/* Attributes for CMM_AllocBuf() & CMM_AllocDesc() */ +struct cmm_attrs { + u32 ul_seg_id; /* 1,2... are SM segments. 0 is not. */ + u32 ul_alignment; /* 0,1,2,4....ul_min_block_size */ +}; + +/* + * DSPPa to GPPPa Conversion Factor. + * + * For typical platforms: + * converted Address = PaDSP + ( c_factor * addressToConvert). + */ +#define CMM_SUBFROMDSPPA -1 +#define CMM_ADDTODSPPA 1 + +#define CMM_ALLSEGMENTS 0xFFFFFF /* All SegIds */ +#define CMM_MAXGPPSEGS 1 /* Maximum # of SM segs */ + +/* + * SMSEGs are SM segments the DSP allocates from. + * + * This info is used by the GPP to xlate DSP allocated PAs. + */ + +struct cmm_seginfo { + u32 dw_seg_base_pa; /* Start Phys address of SM segment */ + /* Total size in bytes of segment: DSP+GPP */ + u32 ul_total_seg_size; + u32 dw_gpp_base_pa; /* Start Phys addr of Gpp SM seg */ + u32 ul_gpp_size; /* Size of Gpp SM seg in bytes */ + u32 dw_dsp_base_va; /* DSP virt base byte address */ + u32 ul_dsp_size; /* DSP seg size in bytes */ + /* # of current GPP allocations from this segment */ + u32 ul_in_use_cnt; + u32 dw_seg_base_va; /* Start Virt address of SM seg */ + +}; + +/* CMM useful information */ +struct cmm_info { + /* # of SM segments registered with this Cmm. */ + u32 ul_num_gppsm_segs; + /* Total # of allocations outstanding for CMM */ + u32 ul_total_in_use_cnt; + /* Min SM block size allocation from cmm_create() */ + u32 ul_min_block_size; + /* Info per registered SM segment. */ + struct cmm_seginfo seg_info[CMM_MAXGPPSEGS]; +}; + +/* XlatorCreate attributes */ +struct cmm_xlatorattrs { + u32 ul_seg_id; /* segment Id used for SM allocations */ + u32 dw_dsp_bufs; /* # of DSP-side bufs */ + u32 dw_dsp_buf_size; /* size of DSP-side bufs in GPP bytes */ + /* Vm base address alloc'd in client process context */ + void *vm_base; + /* dw_vm_size must be >= (dwMaxNumBufs * dwMaxSize) */ + u32 dw_vm_size; +}; + +/* + * Cmm translation types. Use to map SM addresses to process context. + */ +enum cmm_xlatetype { + CMM_VA2PA = 0, /* Virtual to GPP physical address xlation */ + CMM_PA2VA = 1, /* GPP Physical to virtual */ + CMM_VA2DSPPA = 2, /* Va to DSP Pa */ + CMM_PA2DSPPA = 3, /* GPP Pa to DSP Pa */ + CMM_DSPPA2PA = 4, /* DSP Pa to GPP Pa */ +}; + +struct cmm_object; +struct cmm_xlatorobject; + +#endif /* CMMDEFS_ */ |