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Deal in 4KB pages for vchiq regardless of ARM page size.

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This commit is contained in:
skrll 2014-04-19 07:28:18 +00:00
parent b34c39e100
commit e396d66cd0
1 changed files with 8 additions and 3 deletions
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11
sys/external/bsd/vchiq/dist/interface/vchiq_arm/vchiq_2835_arm.c vendored
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@ -338,14 +338,19 @@ vchiq_prepare_bulk_data(VCHIQ_BULK_T *bulk, VCHI_MEM_HANDLE_T memhandle,
pagelist->type = (dir == VCHIQ_BULK_RECEIVE) ?
PAGELIST_READ : PAGELIST_WRITE;
pagelist->length = size;
pagelist->offset = va & PAGE_MASK;
pagelist->offset = va & L2_S_OFFSET;
/*
* busdma already coalesces contiguous pages for us
*/
for (int i = 0; i < bi->dmamap->dm_nsegs; i++) {
pagelist->addrs[i] = bi->dmamap->dm_segs[i].ds_addr & ~PAGE_MASK;
pagelist->addrs[i] |= atop(round_page(bi->dmamap->dm_segs[i].ds_len)) - 1;
bus_addr_t addr = bi->dmamap->dm_segs[i].ds_addr;
bus_size_t len = bi->dmamap->dm_segs[i].ds_len;
bus_size_t off = addr & L2_S_OFFSET;
int npgs = ((off + len + L2_S_OFFSET) >> L2_S_SHIFT);
pagelist->addrs[i] = addr & ~L2_S_OFFSET;
pagelist->addrs[i] |= npgs - 1;
}
/* Partial cache lines (fragments) require special measures */