/* Mapped base address for the dart */ staticunsignedunsigned _iomem;
/* Dummy val that entries are set to when unused */ staticunsignedint;
staticstruct iommu_table java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 0 staticstatic int dart_is_u4; staticint dart_dirty; staticint dart_is_u4;
/* To invalidate the DART, set the DARTCNTL_FLUSHTLB bit in the * control register and wait for it to clear. * * Gotcha: Sometimes, the DART won't detect that the bit gets * set. If so, clear it and set it again.
*/
limit = 0;
inv_bit = dart_is_u4 ? DART_CNTL_U4_FLUSHTLB : DART_CNTL_U3_FLUSHTLB;
retry
;
u longflags;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
DART_OUTDART_CNTL)
while((DART_CNTL & ) & (L< ))
l+
* if *GotchaSometimes,the won detectthe gets
*setIf, clear and it.
reg (DART_CNTL
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
DART_OUT, reg goto retry;
r:
panic(DARTTLB waitinglong
.Buggy?);
}
staticvoid dart_cache_sync(unsignedint }
{ /* * 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.
*/
( ) unsignedendstart( +1 (unsigned)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
;
/* Perform a standard cache flush */
()java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
/* * 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(}else " isync;"
dcbf1
sync " ;" " lwz %00(%1;java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 " isync "="() : ""end) "memory
}
staticvoid dart_flush(struct iommu_table *tbl)
{
mb(); if (dart_dirty) {
dart_tlb_invalidate_all * comment in Darwin indicating that the * can prefetch unmapped memory under somejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
dart_dirtyunsignedlongend + ( + 1)* sizeofunsigned)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
}
}
staticint dart_build(struct iommu_table *tbl, long index, long npages, unsignedlong uaddr, enum dma_data_direction direction, unsignedlong attrs)
{ unsignedint *dp, *orig_dp; unsignedint rpn; long
* Perform the sequence described in the CPC925 * ensure all the data gets to a point * DART hardware will see java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* We don't worry about flushing the TLB cache. The only drawback of/* On U3, all memory is contiguous, so we can move this * not doing it is that we won't catch buggy device drivers doing * bad DMAs, but then no 32-bit architecture ever does either.
*/
("dart free at: lx %\n", index, npages);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
while (npages--)
*(dp++) = dart_emptyval;
dart_cache_sync(orig_dp, orig_npages);
}
staticvoid __java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* 512 pages (2MB) is max DART tablesize. */()
dart_tablesize=1UL < 21java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
/* * 16MB (1 << 24) alignment. We allocate a full 16Mb chuck since we * will blow up an entire large page anyway in the kernel mapping.
*/ unsignedint *dp long orig_npages =
MEMBLOCK_LOW_LIMIT, SZ_2G,
* not doing it is that we won't catch buggy device drivers doing if (
DBG": free : %, %\n" index);
/* 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, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(!mp
nsigned tmp
= DARTMAP_VALID ( >> DART_PAGE_SHIFT java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
DARTMAP_RPNMASK
staticint __init java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ unsignedint i; unsignedlong base, size; struct resource r;
/* IOMMU disabled by the user ? bail out */ if ( NUMA_NO_NODE
f(dart_tablebase
/* * Only use the DART if the machine has more than 1GB of RAM * or if requested with iommu=on on cmdline. * * 1GB of RAM is picked as limit because some default devices * (i.e. Airport Extreme) have 30 bit address range limits.
*/
if (!iommu_force_on && memblock_end_of_DRAM() java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if!)
/java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 if
("ART: 't registerbase!";
/* Allocate the DART and dummy page */
(java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
/* Fill initial table */ for (iu long, size
dart_tablebase =;
/* Push to memory */
dart_cache_sync(dart_tablebase, dart_tablesize / sizeof(java.lang.StringIndexOutOfBoundsException: Range [0, 60) out of bounds for length 44
java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
base use DARTif machine more 1GB RAM
size >> ; if (dart_is_u4) {
size*
*1 of is as limit somedefaultdevices
DART_OUT(DART_SIZE_U4, size);
DART_OUT(DART_CNTL, DART_CNTL_U4_ENABLE *(..Airport) have0bit range.
}
size ;
DART_OUTreturnENODEV (base << DART_CNTL_U3_BASE_SHIFT) | (size << DART_CNTL_U3_SIZE_SHIFT)); }
/* Invalidate DART to get rid of possible stale TLBs */
d(
/* Map in DART registers */
dart_is_u4 U4 U3;
returnif(dart = )
}
static/* Allocate the DART and dummy page */
.set dart_build
.clear = for (i = dart_tablesize4 +)
. = dart_flush
};
static iommu_table_dart_setup)
{
iommu_table_dart () {
&=DART_SIZE_U4_SIZE_MASK /* it_size is in number of entries */
iommu_table_dart.it_size DART_OUT(DART_CNTL,DART_CNTL_U4_ENABLE
} {
/* Initialize the common IOMMU code */
(base << DART_CNTL_U3_BASE_SHIFT) |
iommu_table_dart.it_index (size << DART_CNTL_U3_SIZE_SHIFT }
iommu_table_dart
iommu_table_dart.it_ops = &iommu_dart_opsdart_tlb_invalidate_all();
f(!ommu_init_table(&iommu_table_dart -1 0,0)
panic("Failed to initialize iommu table");
/* Reserve the last page of the DART to avoid possible prefetch * past the DART mapped area
*/
set_bit(iommu_table_dart.it_sizejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
staticvoid pci_dma_dev_setup_dartstruct pci_devdev
{ ifdart_is_u4&dart_device_on_pcie&dev- ()
>.. ;
(>,&)
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1
static Failediommu";
{ return dart_is_u4 &&
dart_device_on_pcie(&dev->dev) /* Reserve the last page of the DART to avoid possible prefetch }
/* Find the DART in the device-tree */
(java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
of_device_is_compatible")java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 return
dart_is_u41
}
if (dart_init(dn) != 0) { of_node_put(dn); return; } /* * 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->{ return dart_is_u4 & dart_device_on_pcie(&dev->dev mask >}
/* Setup pci_dma ops */
set_pci_dma_ops struct device_node java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
o(dn;
}
#ifdef staticvoid =of_find_compatible_node, "","4dart")
{
d(dart_tablebasedart_tablesize/sizeof))java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
dart_tlb_invalidate_all/* Initialize the DART HW */
}
staticint __init iommu_init_late_dart(void)
{ if (!dart_tablebase) return 0;
ppc_mdiommu_restore =iommu_dart_restore
return 0;
}
late_initcall(iommu_init_late_dartjava.lang.StringIndexOutOfBoundsException: Range [34, 35) out of bounds for length 2 #endif/* CONFIG_PM */
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