diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/DocBook/Makefile | 2 | ||||
| -rw-r--r-- | Documentation/features/io/sg-chain/arch-support.txt | 2 | ||||
| -rw-r--r-- | Documentation/scsi/g_NCR5380.txt | 46 | ||||
| -rw-r--r-- | Documentation/unaligned-memory-access.txt | 2 | ||||
| -rw-r--r-- | Documentation/x86/topology.txt | 9 |
5 files changed, 35 insertions, 26 deletions
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index c75e5d6b8fa8..a6eb7dcd4dd5 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -12,7 +12,7 @@ DOCBOOKS := z8530book.xml \ kernel-api.xml filesystems.xml lsm.xml kgdb.xml \ gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ - 80211.xml sh.xml regulator.xml w1.xml \ + sh.xml regulator.xml w1.xml \ writing_musb_glue_layer.xml iio.xml ifeq ($(DOCBOOKS),) diff --git a/Documentation/features/io/sg-chain/arch-support.txt b/Documentation/features/io/sg-chain/arch-support.txt index b9b675539b9d..6ca98f9911bb 100644 --- a/Documentation/features/io/sg-chain/arch-support.txt +++ b/Documentation/features/io/sg-chain/arch-support.txt @@ -7,7 +7,7 @@ | arch |status| ----------------------- | alpha: | TODO | - | arc: | TODO | + | arc: | ok | | arm: | ok | | arm64: | ok | | avr32: | TODO | diff --git a/Documentation/scsi/g_NCR5380.txt b/Documentation/scsi/g_NCR5380.txt index e2c187947e58..37b1967a00a9 100644 --- a/Documentation/scsi/g_NCR5380.txt +++ b/Documentation/scsi/g_NCR5380.txt @@ -6,17 +6,15 @@ NCR53c400 extensions (c) 1994,1995,1996 Kevin Lentin This file documents the NCR53c400 extensions by Kevin Lentin and some enhancements to the NCR5380 core. -This driver supports both NCR5380 and NCR53c400 cards in port or memory -mapped modes. Currently this driver can only support one of those mapping -modes at a time but it does support both of these chips at the same time. -The next release of this driver will support port & memory mapped cards at -the same time. It should be able to handle multiple different cards in the -same machine. +This driver supports NCR5380 and NCR53c400 and compatible cards in port or +memory mapped modes. -The drivers/scsi/Makefile has an override in it for the most common -NCR53c400 card, the Trantor T130B in its default configuration: - Port: 0x350 - IRQ : 5 +Use of an interrupt is recommended, if supported by the board, as this will +allow targets to disconnect and thereby improve SCSI bus utilization. + +If the irq parameter is 254 or is omitted entirely, the driver will probe +for the correct IRQ line automatically. If the irq parameter is 0 or 255 +then no IRQ will be used. The NCR53c400 does not support DMA but it does have Pseudo-DMA which is supported by the driver. @@ -47,22 +45,24 @@ These old-style parameters can support only one card: dtc_3181e=1 to set up for a Domex Technology Corp 3181E board hp_c2502=1 to set up for a Hewlett Packard C2502 board -e.g. -OLD: modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1 -NEW: modprobe g_NCR5380 irq=5 base=0x350 card=0 - for a port mapped NCR5380 board or - -OLD: modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1 -NEW: modprobe g_NCR5380 irq=255 base=0xc8000 card=1 - for a memory mapped NCR53C400 board with interrupts disabled or +E.g. Trantor T130B in its default configuration: +modprobe g_NCR5380 irq=5 base=0x350 card=1 +or alternatively, using the old syntax, +modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_53c400=1 -NEW: modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4 - for two cards: DTC3181 (in non-PnP mode) at 0x240 with no IRQ - and HP C2502 at 0x300 with IRQ 7 +E.g. a port mapped NCR5380 board, driver to probe for IRQ: +modprobe g_NCR5380 base=0x350 card=0 +or alternatively, +modprobe g_NCR5380 ncr_addr=0x350 ncr_5380=1 -(255 should be specified for no or DMA interrupt, 254 to autoprobe for an - IRQ line if overridden on the command line.) +E.g. a memory mapped NCR53C400 board with no IRQ: +modprobe g_NCR5380 irq=255 base=0xc8000 card=1 +or alternatively, +modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1 +E.g. two cards, DTC3181 (in non-PnP mode) at 0x240 with no IRQ +and HP C2502 at 0x300 with IRQ 7: +modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4 Kevin Lentin K.Lentin@cs.monash.edu.au diff --git a/Documentation/unaligned-memory-access.txt b/Documentation/unaligned-memory-access.txt index a445da098bc6..3f76c0c37920 100644 --- a/Documentation/unaligned-memory-access.txt +++ b/Documentation/unaligned-memory-access.txt @@ -151,7 +151,7 @@ bool ether_addr_equal(const u8 *addr1, const u8 *addr2) #else const u16 *a = (const u16 *)addr1; const u16 *b = (const u16 *)addr2; - return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0; + return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0; #endif } diff --git a/Documentation/x86/topology.txt b/Documentation/x86/topology.txt index 06afac252f5b..f3e9d7e9ed6c 100644 --- a/Documentation/x86/topology.txt +++ b/Documentation/x86/topology.txt @@ -63,6 +63,15 @@ The topology of a system is described in the units of: The maximum possible number of packages in the system. Helpful for per package facilities to preallocate per package information. + - cpu_llc_id: + + A per-CPU variable containing: + - On Intel, the first APIC ID of the list of CPUs sharing the Last Level + Cache + + - On AMD, the Node ID or Core Complex ID containing the Last Level + Cache. In general, it is a number identifying an LLC uniquely on the + system. * Cores: |