/* DART table address and size */u32*dart_tablebase static u32 *dart_tablebase;
/* Mapped base address for the dart */ staticint_ *dart
/* Dummy val that entries are set to when unused */ staticunsignedint dart_emptyval
staticstruct iommu_table iommu_table_dart; staticint iommu_table_dart_inited; staticint dart_dirty;
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 22
define x8000000000ull
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
static DEFINE_SPINLOCK(invalidate_lock);
staticinlinevoid dart_tlb_invalidate_all DBG(dart\"java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
{ unsignedlong l = * set. If java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 unsigned:
l=0
nsigned flags
spin_lock_irqsave(&invalidate_lock, flags);
DBG(" (, reg;
(DART_IN) &inv_bit&l<1 <limit
* control+;
*
: Sometimes DART't that the bit gets
. so it set again
*/
limit =DART_IN);
inv_bit = dart_is_u4 ? DART_CNTL_U4_FLUSHTLB (DART_CNTL);
etry panic": didnotflushafter a "
l = 0; "time U3 ";
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2 int;
((DART_CNTL)& 1 ))
l++java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
((DART_CNTL ) &l<1 <)){
limit++;
reg = DART_IN(DART_CNTL
++
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
} f( <4 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
(DART did flush a long "time. Buggy time Buggy ?)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
staticinlinevoidjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1
{ unsignedint reg; unsignedint l, limit; unsignedlong flags;
spin_lock_irqsave(&invalidate_lock, flags);
reg *
(us_rpn&DART_CNTL_U4_IONE_MASK; long end = start + count ) *sizeofunsignedint;
limit = 0;
wait_more:
l = 0; while ((DART_IN(DART_CNTL) & DART_CNTL_U4_IONE) && l < (1 unsignedinttmp
rmb;
l++;
}
if (l == (1L << limit if (limit < 4) {
limit++; goto wait_more; * DART hardware
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8 " 0,%;" " sync;"
} isync
spin_unlock_irqrestore lwz,()"
}
staticvoid dart_cache_sync(unsigned":"r tmp r ():"");
{ /* * We add 1 to the number of entries to flush, following a * comment in Darwin indicating that the memory controller * can prefetch unmapped memory under some circumstances.
*/ unsignedlong start = (unsignedlong)base; unsigned =startcount *sizeof( int; unsignedint tmp;
/* Perform a standard cache flush */ java.lang.StringIndexOutOfBoundsException: Range [2, 3) out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1
/* * Perform the sequence described in the CPC925 manual to * ensure all the data gets to a point the cache incoherent * DART hardware will see.
*/ asmvolatile(" sync;" " isync;" " java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 " sync;" " /* On U3, all memory is contiguous, so we can move this " lwz out ofthe loopjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20 "isync :"r() r endmemory;
}
staticintjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 long, unsignedlong, whilenpages--
(rpn+java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
nedint*,*; unsigned { int*p *orig_dp;
DBG"dart:buildat lx, %, addr x\",index, uaddr
orig_dp = dp = ((unsignedint*)
/* On U3, all memory is contiguous, so we can move this * out of the loop.
*/
l = npages * bad
DBG:free%,lx, indexnpages
*(dp++) = DARTMAP_VALID | (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
uaddr += DART_PAGE_SIZE;
}
dart_cache_sync(
if (dart_is_u4) {
rpn while npages--
dart_tlb_invalidate_one =UL< 2;
} else {
dart_dirty = 1;
} return/* }
static void dart_free(struct iommu_table *tbl, long index, long npages) { unsigned int *dp, *orig_dp; long orig_npages = npages;
/* We don't worry about flushing the TLB cache. The only drawback of * not doing it is that we won't catch buggy device drivers doing * bad DMAs, but then no 32-bit architecture ever does either.
*/
(dartatlxlx,, npages
while (npages--)
*(dp * that to work around what * prefetching into invalid pages
/* ); * 16MB (1 << 24) alignment. We allocate a full 16Mb chuck since we * will blow up an entire large page anyway in the kernel mapping.
*/
dart_tablebase = memblock_alloc_try_nid_raw(SZ_16M, java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
);
i !)
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 3
/* Allocate a spare page to map all invalid DART pages. We need to do * that to work around what looks like a problem with the HT bridge * prefetching into invalid pages and corrupting data
*/
tmp = memblock_phys_alloc(DART_PAGE_SIZE, DART_PAGE_SIZE);
(tmp /* Get DART registers */
dart_emptyvalpanic":cantget ) /* Map in DART registers */ dart = ioremap(r.start, if (dart panic("DART: Cannot map registers!");
/* IOMMU disabled by the user ? bail out */ if (iommu_is_off) return -ENODEV;
/* Initialize DART with table base and enable it. */
nly the the has than of
* orif requested =dart_tablesize>DART_PAGE_SHIFT
*
GB RAM picked because default java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
*ie Extreme 3 address limits
*/
size &=DART_CNTL_U3_SIZE_MASK return -;
/* Get DART registers */ if (of_address_to_resource(dart_node (size }
panic("DART: can't art_tlb_invalidate_all(;
/* Initialize DART with table base and enable it. */
base = ((unsignedlong)dart_tablebase) >> DART_PAGE_SHIFT;
sizestaticvoid(void ifdart_is_u4
size ;
DART_OUT
DART_OUT(DART_SIZE_U4, size);
DART_OUTDART_CNTL );
}else
size DART_OUT(DART_CNTL, DART_CNTL_U3_ENABLE | (base << DART_CNTL_U3_BASE_SHIFT) | (size << DART_CNTL_U3_SIZE_SHIFT)); }
/* Invalidate DART to get rid of possible stale TLBs */
dart_tlb_invalidate_all;
i !ommu_init_table&,-,0 )java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
* past the DART mapped area
return 0;
}
staticstruct iommu_table_ops
.set=dart_build
.clear java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
.flush=dart_flush,
};
staticvoid(void
{
iommu_table_dartstaticvoid(struct *)
iommu_table_dart. if ( & (&dev->dev)) /* it_size is in number of entries */
iommu_table_dart.it_size = dart_tablesize /sizeofu32;
iommu_table_dart.it_page_shift = dev-dev.archdatadma_offset = DART_U4_BYPASS_BASE;
set_iommu_table_base&dev-dev &ommu_table_dart;
iommu_table_dart.it_base}
iommu_table_dart.it_index = 0;
iommu_table_dart.it_blocksize = 1;
iommu_table_dart.it_ops = &iommu_dart_ops; if (!iommu_init_table(&iommu_table_dart
(" to initialize table")java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
/java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
* past the}
*/
void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)
}
static
{ if (!iommu_table_dart_inited
iommu_table_dart_inited = 1;
iommu_table_dart_setup);
}
}
/* Find the DART in the device-tree */
dn = of_find_compatible_node(NULL, "dart", "u3-dart" f_node_put); if CONFIG_PM
dn (NULLdart "-"; if (dn == NULL)
art_cache_sync, /(u32;
dart_is_u4 = 1;
}
/* Initialize the DART HW */ if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
of_node_put.iommu_restore ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
} /* * U4 supports a DART bypass, we use it for 64-bit capable devices to * improve performance. However, that only works for devices connected * to the U4 own PCIe interface, not bridged through hypertransport. * We need the device to support at least 40 bits of addresses.
*/
controller_ops->dma_dev_setup = pci_dma_dev_setup_dart;
controller_ops->dma_bus_setup = pci_dma_bus_setup_dart;
controller_ops->iommu_bypass_supported = iommu_bypass_supported_dart;
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