diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/cachetlb.txt | 24 | ||||
| -rw-r--r-- | Documentation/dontdiff | 1 | ||||
| -rw-r--r-- | Documentation/kernel-parameters.txt | 16 | ||||
| -rw-r--r-- | Documentation/lguest/lguest.c | 1 | ||||
| -rw-r--r-- | Documentation/scsi/ChangeLog.megaraid_sas | 16 |
5 files changed, 54 insertions, 4 deletions
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt index da42ab414c4..b231414bb8b 100644 --- a/Documentation/cachetlb.txt +++ b/Documentation/cachetlb.txt @@ -377,3 +377,27 @@ maps this page at its virtual address. All the functionality of flush_icache_page can be implemented in flush_dcache_page and update_mmu_cache. In 2.7 the hope is to remove this interface completely. + +The final category of APIs is for I/O to deliberately aliased address +ranges inside the kernel. Such aliases are set up by use of the +vmap/vmalloc API. Since kernel I/O goes via physical pages, the I/O +subsystem assumes that the user mapping and kernel offset mapping are +the only aliases. This isn't true for vmap aliases, so anything in +the kernel trying to do I/O to vmap areas must manually manage +coherency. It must do this by flushing the vmap range before doing +I/O and invalidating it after the I/O returns. + + void flush_kernel_vmap_range(void *vaddr, int size) + flushes the kernel cache for a given virtual address range in + the vmap area. This is to make sure that any data the kernel + modified in the vmap range is made visible to the physical + page. The design is to make this area safe to perform I/O on. + Note that this API does *not* also flush the offset map alias + of the area. + + void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates + the cache for a given virtual address range in the vmap area + which prevents the processor from making the cache stale by + speculatively reading data while the I/O was occurring to the + physical pages. This is only necessary for data reads into the + vmap area. diff --git a/Documentation/dontdiff b/Documentation/dontdiff index 3ad6acead94..d9bcffd5943 100644 --- a/Documentation/dontdiff +++ b/Documentation/dontdiff @@ -69,7 +69,6 @@ av_permissions.h bbootsect bin2c binkernel.spec -binoffset bootsect bounds.h bsetup diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index e7848a0d99e..3e69c1c4f50 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1948,8 +1948,12 @@ and is between 256 and 4096 characters. It is defined in the file IRQ routing is enabled. noacpi [X86] Do not use ACPI for IRQ routing or for PCI scanning. - use_crs [X86] Use _CRS for PCI resource - allocation. + use_crs [X86] Use PCI host bridge window information + from ACPI. On BIOSes from 2008 or later, this + is enabled by default. If you need to use this, + please report a bug. + nocrs [X86] Ignore PCI host bridge windows from ACPI. + If you need to use this, please report a bug. routeirq Do IRQ routing for all PCI devices. This is normally done in pci_enable_device(), so this option is a temporary workaround @@ -1998,6 +2002,14 @@ and is between 256 and 4096 characters. It is defined in the file force Enable ASPM even on devices that claim not to support it. WARNING: Forcing ASPM on may cause system lockups. + pcie_pme= [PCIE,PM] Native PCIe PME signaling options: + off Do not use native PCIe PME signaling. + force Use native PCIe PME signaling even if the BIOS refuses + to allow the kernel to control the relevant PCIe config + registers. + nomsi Do not use MSI for native PCIe PME signaling (this makes + all PCIe root ports use INTx for everything). + pcmv= [HW,PCMCIA] BadgePAD 4 pd. [PARIDE] diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 42208511b5c..3119f5db75b 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -34,7 +34,6 @@ #include <sys/uio.h> #include <termios.h> #include <getopt.h> -#include <zlib.h> #include <assert.h> #include <sched.h> #include <limits.h> diff --git a/Documentation/scsi/ChangeLog.megaraid_sas b/Documentation/scsi/ChangeLog.megaraid_sas index 17ffa060771..30023568805 100644 --- a/Documentation/scsi/ChangeLog.megaraid_sas +++ b/Documentation/scsi/ChangeLog.megaraid_sas @@ -1,3 +1,19 @@ +1 Release Date : Thur. Oct 29, 2009 09:12:45 PST 2009 - + (emaild-id:megaraidlinux@lsi.com) + Bo Yang + +2 Current Version : 00.00.04.17.1-rc1 +3 Older Version : 00.00.04.12 + +1. Add the pad_0 in mfi frame structure to 0 to fix the + context value larger than 32bit value issue. + +2. Add the logic drive list to the driver. Driver will + keep the logic drive list internal after driver load. + +3. driver fixed the device update issue after get the AEN + PD delete/ADD, LD add/delete from FW. + 1 Release Date : Tues. July 28, 2009 10:12:45 PST 2009 - (emaild-id:megaraidlinux@lsi.com) Bo Yang |