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* FS-Cache: Root index definitionDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a description of the root index of the cache for later patches to make use of. The root index is owned by FS-Cache itself. When a netfs requests caching facilities, FS-Cache will, if one doesn't already exist, create an entry in the root index with the key being the name of the netfs ("AFS" for example), and the auxiliary data holding the index structure version supplied by the netfs: FSDEF | +-----------+ | | NFS AFS [v=1] [v=1] If an entry with the appropriate name does already exist, the version is compared. If the version is different, the entire subtree from that entry will be discarded and a new entry created. The new entry will be an index, and a cookie referring to it will be passed to the netfs. This is then the root handle by which the netfs accesses the cache. It can create whatever objects it likes in that index, including further indices. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* FS-Cache: Add use of /proc and presentation of statisticsDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make FS-Cache create its /proc interface and present various statistical information through it. Also provide the functions for updating this information. These features are enabled by: CONFIG_FSCACHE_PROC CONFIG_FSCACHE_STATS CONFIG_FSCACHE_HISTOGRAM The /proc directory for FS-Cache is also exported so that caching modules can add their own statistics there too. The FS-Cache module is loadable at this point, and the statistics files can be examined by userspace: cat /proc/fs/fscache/stats cat /proc/fs/fscache/histogram Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* FS-Cache: Add main configuration option, module entry points and debuggingDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | Add the main configuration option, allowing FS-Cache to be selected; the module entry and exit functions and the debugging stuff used by these patches. The two configuration options added are: CONFIG_FSCACHE CONFIG_FSCACHE_DEBUG The first enables the facility, and the second makes the debugging statements enableable through the "debug" module parameter. The value of this parameter is a bitmask as described in: Documentation/filesystems/caching/fscache.txt The module can be loaded at this point, but all it will do at this point in the patch series is to start up the slow work facility and shut it down again. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* FS-Cache: Add the FS-Cache cache backend API and documentationDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | Add the API for a generic facility (FS-Cache) by which caches may declare them selves open for business, and may obtain work to be done from network filesystems. The header file is included by: #include <linux/fscache-cache.h> Documentation for the API is also added to: Documentation/filesystems/caching/backend-api.txt This API is not usable without the implementation of the utility functions which will be added in further patches. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* FS-Cache: Add the FS-Cache netfs API and documentationDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the API for a generic facility (FS-Cache) by which filesystems (such as AFS or NFS) may call on local caching capabilities without having to know anything about how the cache works, or even if there is a cache: +---------+ | | +--------------+ | NFS |--+ | | | | | +-->| CacheFS | +---------+ | +----------+ | | /dev/hda5 | | | | | +--------------+ +---------+ +-->| | | | | | |--+ | AFS |----->| FS-Cache | | | | |--+ +---------+ +-->| | | | | | | +--------------+ +---------+ | +----------+ | | | | | | +-->| CacheFiles | | ISOFS |--+ | /var/cache | | | +--------------+ +---------+ General documentation and documentation of the netfs specific API are provided in addition to the header files. As this patch stands, it is possible to build a filesystem against the facility and attempt to use it. All that will happen is that all requests will be immediately denied as if no cache is present. Further patches will implement the core of the facility. The facility will transfer requests from networking filesystems to appropriate caches if possible, or else gracefully deny them. If this facility is disabled in the kernel configuration, then all its operations will trivially reduce to nothing during compilation. WHY NOT I_MAPPING? ================== I have added my own API to implement caching rather than using i_mapping to do this for a number of reasons. These have been discussed a lot on the LKML and CacheFS mailing lists, but to summarise the basics: (1) Most filesystems don't do hole reportage. Holes in files are treated as blocks of zeros and can't be distinguished otherwise, making it difficult to distinguish blocks that have been read from the network and cached from those that haven't. (2) The backing inode must be fully populated before being exposed to userspace through the main inode because the VM/VFS goes directly to the backing inode and does not interrogate the front inode's VM ops. Therefore: (a) The backing inode must fit entirely within the cache. (b) All backed files currently open must fit entirely within the cache at the same time. (c) A working set of files in total larger than the cache may not be cached. (d) A file may not grow larger than the available space in the cache. (e) A file that's open and cached, and remotely grows larger than the cache is potentially stuffed. (3) Writes go to the backing filesystem, and can only be transferred to the network when the file is closed. (4) There's no record of what changes have been made, so the whole file must be written back. (5) The pages belong to the backing filesystem, and all metadata associated with that page are relevant only to the backing filesystem, and not anything stacked atop it. OVERVIEW ======== FS-Cache provides (or will provide) the following facilities: (1) Caches can be added / removed at any time, even whilst in use. (2) Adds a facility by which tags can be used to refer to caches, even if they're not available yet. (3) More than one cache can be used at once. Caches can be selected explicitly by use of tags. (4) The netfs is provided with an interface that allows either party to withdraw caching facilities from a file (required for (1)). (5) A netfs may annotate cache objects that belongs to it. This permits the storage of coherency maintenance data. (6) Cache objects will be pinnable and space reservations will be possible. (7) The interface to the netfs returns as few errors as possible, preferring rather to let the netfs remain oblivious. (8) Cookies are used to represent indices, files and other objects to the netfs. The simplest cookie is just a NULL pointer - indicating nothing cached there. (9) The netfs is allowed to propose - dynamically - any index hierarchy it desires, though it must be aware that the index search function is recursive, stack space is limited, and indices can only be children of indices. (10) Indices can be used to group files together to reduce key size and to make group invalidation easier. The use of indices may make lookup quicker, but that's cache dependent. (11) Data I/O is effectively done directly to and from the netfs's pages. The netfs indicates that page A is at index B of the data-file represented by cookie C, and that it should be read or written. The cache backend may or may not start I/O on that page, but if it does, a netfs callback will be invoked to indicate completion. The I/O may be either synchronous or asynchronous. (12) Cookies can be "retired" upon release. At this point FS-Cache will mark them as obsolete and the index hierarchy rooted at that point will get recycled. (13) The netfs provides a "match" function for index searches. In addition to saying whether a match was made or not, this can also specify that an entry should be updated or deleted. FS-Cache maintains a virtual index tree in which all indices, files, objects and pages are kept. Bits of this tree may actually reside in one or more caches. FSDEF | +------------------------------------+ | | NFS AFS | | +--------------------------+ +-----------+ | | | | homedir mirror afs.org redhat.com | | | +------------+ +---------------+ +----------+ | | | | | | 00001 00002 00007 00125 vol00001 vol00002 | | | | | +---+---+ +-----+ +---+ +------+------+ +-----+----+ | | | | | | | | | | | | | PG0 PG1 PG2 PG0 XATTR PG0 PG1 DIRENT DIRENT DIRENT R/W R/O Bak | | PG0 +-------+ | | 00001 00003 | +---+---+ | | | PG0 PG1 PG2 In the example above, two netfs's can be seen to be backed: NFS and AFS. These have different index hierarchies: (*) The NFS primary index will probably contain per-server indices. Each server index is indexed by NFS file handles to get data file objects. Each data file objects can have an array of pages, but may also have further child objects, such as extended attributes and directory entries. Extended attribute objects themselves have page-array contents. (*) The AFS primary index contains per-cell indices. Each cell index contains per-logical-volume indices. Each of volume index contains up to three indices for the read-write, read-only and backup mirrors of those volumes. Each of these contains vnode data file objects, each of which contains an array of pages. The very top index is the FS-Cache master index in which individual netfs's have entries. Any index object may reside in more than one cache, provided it only has index children. Any index with non-index object children will be assumed to only reside in one cache. The FS-Cache overview can be found in: Documentation/filesystems/caching/fscache.txt The netfs API to FS-Cache can be found in: Documentation/filesystems/caching/netfs-api.txt Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* FS-Cache: Recruit a page flags for cache managementDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | Recruit a page flag to aid in cache management. The following extra flag is defined: (1) PG_fscache (PG_private_2) The marked page is backed by a local cache and is pinning resources in the cache driver. If PG_fscache is set, then things that checked for PG_private will now also check for that. This includes things like truncation and page invalidation. The function page_has_private() had been added to make the checks for both PG_private and PG_private_2 at the same time. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* FS-Cache: Release page->private after failed readaheadDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | The attached patch causes read_cache_pages() to release page-private data on a page for which add_to_page_cache() fails. If the filler function fails, then the problematic page is left attached to the pagecache (with appropriate flags set, one presumes) and the remaining to-be-attached pages are invalidated and discarded. This permits pages with caching references associated with them to be cleaned up. The invalidatepage() address space op is called (indirectly) to do the honours. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* Document the slow work thread poolDavid Howells2009-04-03
| | | | | | | | | | Document the slow work thread pool. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* Make the slow work pool configurableDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the slow work pool configurable through /proc/sys/kernel/slow-work. (*) /proc/sys/kernel/slow-work/min-threads The minimum number of threads that should be in the pool as long as it is in use. This may be anywhere between 2 and max-threads. (*) /proc/sys/kernel/slow-work/max-threads The maximum number of threads that should in the pool. This may be anywhere between min-threads and 255 or NR_CPUS * 2, whichever is greater. (*) /proc/sys/kernel/slow-work/vslow-percentage The percentage of active threads in the pool that may be used to execute very slow work items. This may be between 1 and 99. The resultant number is bounded to between 1 and one fewer than the number of active threads. This ensures there is always at least one thread that can process very slow work items, and always at least one thread that won't. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* Make slow-work thread pool actually dynamicDavid Howells2009-04-03
| | | | | | | | | | | | | Make the slow-work thread pool actually dynamic in the number of threads it contains. With this patch, it will both create additional threads when it has extra work to do, and cull excess threads that aren't doing anything. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* Create a dynamically sized pool of threads for doing very slow work itemsDavid Howells2009-04-03
| | | | | | | | | | | | | | | | | | | | | | Create a dynamically sized pool of threads for doing very slow work items, such as invoking mkdir() or rmdir() - things that may take a long time and may sleep, holding mutexes/semaphores and hogging a thread, and are thus unsuitable for workqueues. The number of threads is always at least a settable minimum, but more are started when there's more work to do, up to a limit. Because of the nature of the load, it's not suitable for a 1-thread-per-CPU type pool. A system with one CPU may well want several threads. This is used by FS-Cache to do slow caching operations in the background, such as looking up, creating or deleting cache objects. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-04-03
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: Remove two unneeded exports and make two symbols static in fs/mpage.c Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225 Trim includes of fdtable.h Don't crap into descriptor table in binfmt_som Trim includes in binfmt_elf Don't mess with descriptor table in load_elf_binary() Get rid of indirect include of fs_struct.h New helper - current_umask() check_unsafe_exec() doesn't care about signal handlers sharing New locking/refcounting for fs_struct Take fs_struct handling to new file (fs/fs_struct.c) Get rid of bumping fs_struct refcount in pivot_root(2) Kill unsharing fs_struct in __set_personality()
| * Remove two unneeded exports and make two symbols static in fs/mpage.cDmitri Vorobiev2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 29a814d2ee0e43c2980f33f91c1311ec06c0aa35 (vfs: add hooks for ext4's delayed allocation support) exported the following functions mpage_bio_submit() __mpage_writepage() for the benefit of ext4's delayed allocation support. Since commit a1d6cc563bfdf1bf2829d3e6ce4d8b774251796b (ext4: Rework the ext4_da_writepages() function), these functions are not used by the ext4 driver anymore. However, the now unnecessary exports still remain, and this patch removes those. Moreover, these two functions can become static again. The issue was spotted by namespacecheck. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225Al Viro2009-04-01
| | | | | | | | | | | | | | fsync_bdev() export and a bunch of stubs for !CONFIG_BLOCK case had been left behind Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Trim includes of fdtable.hAl Viro2009-03-31
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Don't crap into descriptor table in binfmt_somAl Viro2009-03-31
| | | | | | | | | | | | | | Same story as in binfmt_elf, except that in binfmt_som we actually forget to close the sucker. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Trim includes in binfmt_elfAl Viro2009-03-31
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Don't mess with descriptor table in load_elf_binary()Al Viro2009-03-31
| | | | | | | | | | | | | | | | ... since we don't tell anyone which descriptor does the file get. We used to, but only in case of ELF binary with a.out loader and that stuff has been gone for a while. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Get rid of indirect include of fs_struct.hAl Viro2009-03-31
| | | | | | | | | | | | | | | | Don't pull it in sched.h; very few files actually need it and those can include directly. sched.h itself only needs forward declaration of struct fs_struct; Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * New helper - current_umask()Al Viro2009-03-31
| | | | | | | | | | | | | | current->fs->umask is what most of fs_struct users are doing. Put that into a helper function. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * check_unsafe_exec() doesn't care about signal handlers sharingAl Viro2009-03-31
| | | | | | | | | | | | ... since we'll unshare sighand anyway Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * New locking/refcounting for fs_structAl Viro2009-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * all changes of current->fs are done under task_lock and write_lock of old fs->lock * refcount is not atomic anymore (same protection) * its decrements are done when removing reference from current; at the same time we decide whether to free it. * put_fs_struct() is gone * new field - ->in_exec. Set by check_unsafe_exec() if we are trying to do execve() and only subthreads share fs_struct. Cleared when finishing exec (success and failure alike). Makes CLONE_FS fail with -EAGAIN if set. * check_unsafe_exec() may fail with -EAGAIN if another execve() from subthread is in progress. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Take fs_struct handling to new file (fs/fs_struct.c)Al Viro2009-03-31
| | | | | | | | | | | | | | | | | | | | Pure code move; two new helper functions for nfsd and daemonize (unshare_fs_struct() and daemonize_fs_struct() resp.; for now - the same code as used to be in callers). unshare_fs_struct() exported (for nfsd, as copy_fs_struct()/exit_fs() used to be), copy_fs_struct() and exit_fs() don't need exports anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Get rid of bumping fs_struct refcount in pivot_root(2)Al Viro2009-03-31
| | | | | | | | | | | | | | | | Not because execve races with _that_ are serious - we really need a situation when final drop of fs_struct refcount is done by something that used to have it as current->fs. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * Kill unsharing fs_struct in __set_personality()Al Viro2009-03-31
| | | | | | | | | | | | | | That's a rudiment of altroot support. I.e. it should've been buried a long time ago. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'drm-linus' of ↵Linus Torvalds2009-04-03
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (21 commits) drm/radeon: load the right microcode on rs780 drm: remove unused "can_grow" parameter from drm_crtc_helper_initial_config drm: fix EDID backward compat check drm: sync the mode validation for INTERLACE/DBLSCAN drm: fix typo in edid vendor parsing. DRM: drm_crtc_helper.h doesn't actually need i2c.h drm: fix missing inline function on 32-bit powerpc. drm: Use pgprot_writecombine in GEM GTT mapping to get the right bits for !PAT. drm/i915: Add a spinlock to protect the active_list drm/i915: Fix SDVO TV support drm/i915: Fix SDVO CREATE_PREFERRED_INPUT_TIMING command drm/i915: Fix error in SDVO DTD and modeline convert drm/i915: Fix SDVO command debug function drm/i915: fix TV mode setting in property change drm/i915: only set TV mode when any property changed drm/i915: clean up udelay usage drm/i915: add VGA hotplug support for 945+ drm/i915: correctly set IGD device's gtt size for KMS. drm/i915: avoid hanging on to a stale pointer to raw_edid. drm/i915: check for -EINVAL from vm_insert_pfn ...
| * | drm/radeon: load the right microcode on rs780Alex Deucher2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | Copy/paste error. The RV670 microcode should work ok, so it's not a show stopper. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | Merge branch 'drm-intel-next' of ../anholt-2.6 into drm-linusDave Airlie2009-04-02
| |\ \
| | * | drm: Use pgprot_writecombine in GEM GTT mapping to get the right bits for !PAT.Jesse Barnes2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise, the PAGE_CACHE_WC would end up getting us a UC-only mapping, and the write performance of GTT maps dropped 10x. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> [anholt: cleaned up unused var] Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: Add a spinlock to protect the active_listCarl Worth2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a baby-step in the direction of having finer-grained locking than the struct_mutex. Specifically, this will enable new debugging code to read the active list for printing out GPU state when the GPU is wedged, (while the struct_mutex is held, of course). Signed-off-by: Carl Worth <cworth@cworth.org> [anholt: indentation fix] Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: Fix SDVO TV supportZhenyu Wang2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This brings SDVO TV support from 2D driver, including origin fix f1ca56e17d0 and later fix 2fcf4fcccfe. Also fix wrong modeline definitions for SDVO TV. Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: Fix SDVO CREATE_PREFERRED_INPUT_TIMING commandZhenyu Wang2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This brings fix commit acde0ef683 from 2D driver. Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: Fix error in SDVO DTD and modeline convertZhenyu Wang2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This brings fix commit 62c0c2f5549a from 2D driver. Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: Fix SDVO command debug functionZhenyu Wang2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix compile error of intel_sdvo_debug_response(), and explicit use KERN_DEBUG for printk. Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: fix TV mode setting in property changeZhenyu Wang2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only set TV DAC in property change seems doesn't work, we have to setup whole crtc pipe which assigned to TV alone. Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> [anholt: Note that this should also fix the oops at startup with new 2D] Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: only set TV mode when any property changedZhenyu Wang2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there's no real property change, don't need to set TV mode again. Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> [anholt: checkpatch.pl fix] Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: clean up udelay usageArjan van de Ven2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | udelay() of 20 milliseconds really ought to just use mdelay(), that avoids the various wrap scenarios and also is more readable Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: add VGA hotplug support for 945+Jesse Barnes2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add VGA port hotplug detection to the i915 driver. When KMS is enabled, plugging in or removing a VGA cable from the VGA connector will generate a uevent, which indicates to userspace that it should re-probe outputs on this device (to determine modes, etc.). Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> [anholt: dropped extra PORT_HOTPLUG_STAT clear with ack from jbarnes] Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: correctly set IGD device's gtt size for KMS.Shaohua Li2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IGD device only has last 1 page used by GTT. This should match the AGP gart code. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: avoid hanging on to a stale pointer to raw_edid.Ma Ling2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drm_get_edid will store edid into raw_edid, so when freeing edid memory, at the same time clean raw_edid pointer. Signed-off-by: Ma Ling <ling.ma@intel.com> [anholt: Note that raw_edid is not currently used anywhere] Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: check for -EINVAL from vm_insert_pfnJesse Barnes2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Indicates something is wrong with the mapping; and apparently triggers in current kernels. Signed-off-by: Jesse Barnes <jbarnes@virtuosugeek.org> Signed-off-by: Eric Anholt <eric@anholt.net>
| | * | drm/i915: fix up tiling/fence reg setup on i8xx class hwDaniel Vetter2009-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes all the tiling problems with the 2d ddx. glxgears still doesn't work. Changes: - fix a copy&paste error in i8xx fence reg setup. It resulted in an at most a 512KB offset of the fence reg window, so was only visible sometimes. - add tests for stride and object size constrains (also for i915 and 1965 class hw). Userspace seems to have an of-by-one bug there, which changes the fence size by at most 512KB due to an overflow. - because i8xx hw is quite old (and therefore not as well-tested) I left 2 debug WARN_ONs in the i8xx fence reg setup code to hopefully catch any further overflows in the bit-fields. Lastly there's one small change to make the alignment checks more consistent. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=20289 Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eric Anholt <eric@anholt.net>
| * | | drm: remove unused "can_grow" parameter from drm_crtc_helper_initial_configJesse Barnes2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanup some leftovers from the X port. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | drm: fix EDID backward compat checkJesse Barnes2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EDIDs should be backward compatible, so don't bail if we see a version of 3 (which is out there now) and print a message if we see something newer, but allow it to be parsed. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | drm: sync the mode validation for INTERLACE/DBLSCANyakui_zhao2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check whether the INTERLACE/DBLSCAN is supported by output device. If not, the mode containing the flag of INTERLACE/DBLSCAN will be marked as unsupported. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | drm: fix typo in edid vendor parsing.Dave Airlie2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Should be, edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@'; Since vendor ID has only two bytes only, I am somewhat surprised why gcc doesn't complain this. Reported-by: Guo, Chaohong <chaohong.guo@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | DRM: drm_crtc_helper.h doesn't actually need i2c.hJean Delvare2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove an include that isn't actually needed to prevent needless rebuilds. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | drm: fix missing inline function on 32-bit powerpc.Dave Airlie2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The readq/writeq really need to be static inline on the arches which don't provide them. Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-04-03
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (54 commits) glge: remove unused #include <version.h> dnet: remove unused #include <version.h> tcp: miscounts due to tcp_fragment pcount reset tcp: add helper for counter tweaking due mid-wq change hso: fix for the 'invalid frame length' messages hso: fix for crash when unplugging the device fsl_pq_mdio: Fix compile failure fsl_pq_mdio: Revive UCC MDIO support ucc_geth: Pass proper device to DMA routines, otherwise oops happens i.MX31: Fixing cs89x0 network building to i.MX31ADS tc35815: Fix build error if NAPI enabled hso: add Vendor/Product ID's for new devices ucc_geth: Remove unused header gianfar: Remove unused header kaweth: Fix locking to be SMP-safe net: allow multiple dev per napi with GRO r8169: reset IntrStatus after chip reset ixgbe: Fix potential memory leak/driver panic issue while setting up Tx & Rx ring parameters ixgbe: fix ethtool -A|a behavior ixgbe: Patch to fix driver panic while freeing up tx & rx resources ...
| * | | | glge: remove unused #include <version.h>Huang Weiyi2009-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unused #include <version.h> in drivers/net/qlge/qlge_ethtool. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-02 22:40:03 -0400