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First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.
This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
getting them indirectly
Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
they don't need sched.h
b) sched.h stops being dependency for significant number of files:
on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
after patch it's only 3744 (-8.3%).
Cross-compile tested on
all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
alpha alpha-up
arm
i386 i386-up i386-defconfig i386-allnoconfig
ia64 ia64-up
m68k
mips
parisc parisc-up
powerpc powerpc-up
s390 s390-up
sparc sparc-up
sparc64 sparc64-up
um-x86_64
x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig
as well as my two usual configs.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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there is a wrong id in drivers/char/agp/via-agp.c
#define PCI_DEVICE_ID_VIA_CX700 0x8324
It must be 0x0324
Notice that PCI_DEVICE_ID_VIA_CX700 is also used in
drivers/i2c/busses/i2c-viapro.c and
drivers/ide/pci/via82cxxx.c
So, I think that constant must be renamed to avoid conflicting.
I attached a proposed patch.
Signed-off-by: Dave Jones <davej@redhat.com>
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I'm using a custom BIOS to configure the northbridge GART at address
0x80000000, size 2G. Linux complains:
"Aperture from northbridge cpu 0 beyond 4GB. Ignoring."
I think there's an off-by-two error in arch/x86_64/kernel/aperture.c:
AK: use correct types for i386
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits)
[PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall
[PATCH] i386: type may be unused
[PATCH] i386: Some additional chipset register values validation.
[PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split.
[PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff
[PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu
[PATCH] i386: white space fixes in i387.h
[PATCH] i386: Drop noisy e820 debugging printks
[PATCH] x86-64: Fix allnoconfig error in genapic_flat.c
[PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems
[PATCH] x86-64: Share identical video.S between i386 and x86-64
[PATCH] x86-64: Remove CONFIG_REORDER
[PATCH] x86-64: Print type and size correctly for unknown compat ioctls
[PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0)
[PATCH] i386: Little cleanups in smpboot.c
[PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning
[PATCH] x86: Use RDTSCP for synchronous get_cycles if possible
[PATCH] i386: Add X86_FEATURE_RDTSCP
[PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386
[PATCH] i386: Implement alternative_io for i386
...
Fix up trivial conflict in include/linux/highmem.h manually.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (59 commits)
PCI: Free resource files in error path of pci_create_sysfs_dev_files()
pci-quirks: disable MSI on RS400-200 and RS480
PCI hotplug: Use menuconfig objects
PCI: ZT5550 CPCI Hotplug driver fix
PCI: rpaphp: Remove semaphores
PCI: rpaphp: Ensure more pcibios_add/pcibios_remove symmetry
PCI: rpaphp: Use pcibios_remove_pci_devices() symmetrically
PCI: rpaphp: Document is_php_dn()
PCI: rpaphp: Document find_php_slot()
PCI: rpaphp: Rename rpaphp_register_pci_slot() to rpaphp_enable_slot()
PCI: rpaphp: refactor tail call to rpaphp_register_slot()
PCI: rpaphp: remove rpaphp_set_attention_status()
PCI: rpaphp: remove print_slot_pci_funcs()
PCI: rpaphp: Remove setup_pci_slot()
PCI: rpaphp: remove a call that does nothing but a pointer lookup
PCI: rpaphp: Remove another wrappered function
PCI: rpaphp: Remve another call that is a wrapper
PCI: rpaphp: remove a function that does nothing but wrap debug printks
PCI: rpaphp: Remove un-needed goto
PCI: rpaphp: Fix a memleak; slot->location string was never freed
...
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Convert code that allocs a struct pci_dev to use alloc_pci_dev().
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Under CONFIG_DISCONTIGMEM, assuming that a !pfn_valid() implies all
subsequent pfn-s are also invalid is wrong. Thus replace this by
explicitly checking against the E820 map.
AK: make e820 on x86-64 not initdata
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Mark Langsdorf <mark.langsdorf@amd.com>
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These are all the remaining instances of get_property. Simple rename of
get_property to of_get_property.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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drivers/char/agp/sgi-agp.c:51:10: warning: Using plain integer as NULL pointer
Signed-off-by: Dave Jones <davej@redhat.com>
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Fix a call to __free_page where __free_pages(, 2) was meant, and do proper
error path handling. Also remove a redundant conditional.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Remove an arch-dependent hunk in favor of #define-ing the respective bits in
asm-<arch>/agp.h (allowing easier overriding in para-virtualized environments).
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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add missing calls to global_flush_tlb().
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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For some vendor/id pairs the kernel will autoload both the sis-agp and the
amd64_agp modules as the sis-agp module will load for all sis devices.
This collision causes the bug reported in:
http://bugzilla.novell.com/show_bug.cgi?id=248665
As currently sis_probe does its own matching, requesting the whole range
gains nothing. The clean fix seems to me to leave the matching to the core
and advertise only the devices actually supported. This patch does so.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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On G965, I810_PGETBL_CTL is a mmio offset, but we wrongly take it
as pci config space offset in detecting GTT size. This one line patch
fixs this.
Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Update PCI id info for Intel 965GM chipset.
Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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This fixes the following compile failures of agpgart drivers.
These errors were inserted by the recent AGPGART constification patch.
drivers/char/agp/uninorth-agp.c:492: error: expected '{' before 'const'
drivers/char/agp/uninorth-agp.c:517: error: expected '{' before 'const'
drivers/char/agp/uninorth-agp.c: In function 'agp_uninorth_probe':
drivers/char/agp/uninorth-agp.c:634: error: 'u3_agp_driver' undeclared (first use in this function)
drivers/char/agp/uninorth-agp.c:634: error: (Each undeclared identifier is reported only once
drivers/char/agp/uninorth-agp.c:634: error: for each function it appears in.)
drivers/char/agp/uninorth-agp.c:636: error: 'uninorth_agp_driver' undeclared (first use in this function)
Signed-off-by: Ryusuke Konishi <ryusuke@osrg.net>
Signed-off-by: Dave Jones <davej@redhat.com>
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Can't really blame davej for mucking this up... static-ify
it while we're at it, which would have prevented this...
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits)
[PARISC] Use symbolic last syscall in __NR_Linux_syscalls
[PARISC] Add missing statfs64 and fstatfs64 syscalls
Revert "[PARISC] Optimize TLB flush on SMP systems"
[PARISC] Compat signal fixes for 64-bit parisc
[PARISC] Reorder syscalls to match unistd.h
Revert "[PATCH] make kernel/signal.c:kill_proc_info() static"
[PARISC] fix sys_rt_sigqueueinfo
[PARISC] fix section mismatch warnings in harmony sound driver
[PARISC] do not export get_register/set_register
[PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code
[PARISC] convert to use CONFIG_64BIT instead of __LP64__
[PARISC] use CONFIG_64BIT instead of __LP64__
[PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro
[PARISC] more ENTRY(), ENDPROC(), END() conversions
[PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc
[PARISC] Fixes /proc/cpuinfo cache output on B160L
[PARISC] implement standard ENTRY(), END() and ENDPROC()
[PARISC] kill ENTRY_SYS_CPUS
[PARISC] clean up debugging printks in smp.c
[PARISC] factor syscall_restart code out of do_signal
...
Fix conflict in include/linux/sched.h due to kill_proc_info() being made
publicly available to PARISC again.
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Make agp_bridge_driver->aperture_sizes and ->masks const.
Also agp_bridge_data->driver
Signed-off-by: Dave Jones <davej@redhat.com>
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My previous compat AGP patch broke modular AGPGART.
Test built on;
i386 CONFIG_AGP=y,m
x86_64 CONFIG_AGP=y
ia64 CONFIG_AGP=m
Signed-off-by: Zwane Mwaikambo <zwane@infradead.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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Conflicts:
arch/parisc/hpux/sys_hpux.c
arch/parisc/mm/ioremap.c
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Fix whitespace, braces, use kzalloc().
Cc: Dave Airlie <airlied@linux.ie>
Cc: Thomas Hellstrom <thomas@tungstengraphics.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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use ARRAY_SIZE macro already defined in kernel.h
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Dave Jones <davej@redhat.com>
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We don't unmap them on the suspend path, so on resume
trying to remap will fail, and then result in an
oops the next time something tries to access them.
Signed-off-by: Dave Jones <davej@redhat.com>
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This patch allows drm to populate an agpgart structure with pages of its own.
It's needed for the new drm memory manager which dynamically flips pages in and out of AGP.
The patch modifies the generic functions as well as the intel agp driver. The intel drm driver is
currently the only one supporting the new memory manager.
Other agp drivers may need some minor fixing up once they have a corresponding memory manager enabled drm driver.
AGP memory types >= AGP_USER_TYPES are not populated by the agpgart driver, but the drm is expected
to do that, as well as taking care of cache- and tlb flushing when needed.
It's not possible to request these types from user space using agpgart ioctls.
The Intel driver also gets a new memory type for pages that can be bound cached to the intel GTT.
Signed-off-by: Thomas Hellstrom <thomas@tungstengraphics.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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The following video card requires the agpgart driver ioctl
interface in order to detect video memory.
00:02.0 VGA compatible controller: Intel Corporation Mobile
945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
Tested on a Thinkpad Z61t, Xorg.0.log from a 32bit debian Xorg is at;
http://montezuma.homeunix.net/Xorg.0.log
Signed-off-by: Zwane Mwaikambo <zwane@infradead.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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Culled from the VIA codedrop.
Also fixes up one ID used in amd64-agp to use the
VIA part number instead of the board name in its ID.
Signed-off-by: Dave Jones <davej@redhat.com>
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No point in clearing local pointers then returning.
Also fix up some CodingStyle nits.
Signed-off-by: Dave Jones <davej@redhat.com>
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This seems to exist just to save people typing 'struct' a few times,
and doesn't provide any additional value.
Signed-off-by: Dave Jones <davej@redhat.com>
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If we fail an alloc, unwind the previous allocs that succeeded.
Spotted-by: Alan Grimes <agrimes@speakeasy.net>
Signed-off-by: Dave Jones <davej@redhat.com>
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Currently in resuming path graphics device's pci space restore is
behind host bridge, so resume function wrongly accesses graphics
device's space. This makes resuming failure which crashed X.
here's a patch to restore device's pci space early, which makes
resuming ok with X.
Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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drivers/char/agp/sgi-agp.c: check kmalloc() return value
Signed-off-by: Amit Choudhary <amit2030@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
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Unfortunately there was a typo in one of the patches I sent,
(The one now committed to the agpgart tree).
It may cause a bus error on i810 type hardware.
Signed-off-by: Thomas Hellstrom <thomas@tungstengraphics.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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On the G965, the GTT size may be larger than is required to cover the
aperture. (In fact, on all hardware we've seen, the GTT is 512KB to the
aperture's 256MB). A previous commit forced the aperture size to 512MB on
G965 to match GTT, which would likely result in hangs at best if users
tried to rely on agpgart's aperture size information. Instead, we use the
resource length for the aperture size and the system's reported GTT size
when available for the GTT size.
Because the MSAC registers which had been read for aperture size detection
on i9xx chips just cause a change in the resource size, we can use generic
code for aperture detection on all i9xx.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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This patch is to speed up flipping of pages in and out of the AGP aperture as
needed by the new drm memory manager.
A number of global cache flushes are removed as well as some PCI posting flushes.
The following guidelines have been used:
1) Memory that is only mapped uncached and that has been subject to a global
cache flush after the mapping was changed to uncached does not need any more
cache flushes. Neither before binding to the aperture nor after unbinding.
2) Only do one PCI posting flush after a sequence of writes modifying page
entries in the GATT.
Signed-off-by: Thomas Hellstrom <thomas@tungstengraphics.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Dave Jones <davej@redhat.com>
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There's no point in troubling the Alpha, IA-64, PowerPC and PARISC
people with SiS and VIA options. Andrew thinks it helps find bugs,
but there's no evidence of that.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Dave Jones <davej@redhat.com>
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When CONFIG_HOTPLUG=n, agp_amd64_resume() calls nforce3_agp_init(),
which is __devinit == __init, so has been discarded and is not
usable for resume.
WARNING: drivers/char/agp/amd64-agp.o - Section mismatch: reference to .init.text: from .text between 'agp_amd64_resume' (at offset 0x249) and 'amd64_tlbflush'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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When CONFIG_HOTPLUG=n, agp_amd64_resume() calls nforce3_agp_init(), which is
__devinit == __init, so has been discarded and is not usable for resume.
WARNING: drivers/char/agp/amd64-agp.o - Section mismatch: reference to .init.text: from .text between 'agp_amd64_resume' (at offset 0x249) and 'amd64_tlbflush'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Not all graphic page remappers support physical addresses over the 4GB
mark for remapping, so while some do (the AMD64 GART always did, and I
just fixed the i965 to do so properly), we're safest off just forcing
GFP_DMA32 allocations to make sure graphics pages get allocated in the
low 32-bit address space by default.
AGP sub-drivers that really care, and can do better, could just choose
to implement their own allocator (or we could add another "64-bit safe"
default allocator for their use), but quite frankly, you're not likely
to care in practice.
So for now, this trivial change means that we won't be allocating pages
that we can't map correctly by mistake on x86-64.
[ On traditional 32-bit x86, this could never happen, because GFP_KERNEL
would never allocate any highmem memory anyway ]
Acked-by: Andi Kleen <ak@suse.de>
Acked-by: Dave Jones <davej@redhat.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This introduces a i965-specific "mask_memory()" function that knows
about the extended physical addresses that the i965 supports. This
allows us to correctly map in physical memory in the >4GB range into the
GTT.
Also simplify/clean-up the i965 case for the aperture sizing by just
returning the fixed 512kB size from "fetch_size()". We don't really
care that not all of the aperture may be visible - the only thing that
cares about the aperture size is the Intel "stolen memory" calculation,
which depends on the fixed size.
Cc: Keith Packard <keithp@keithp.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Some dumb bridges are programmed to disobey the AGP2 spec.
This is likely a BIOS misprogramming rather than poweron default, or
it would be a lot more common.
AGPv2 spec 6.1.9 states:
"The RATE field indicates the data transfer rates supported by this
device. A.G.P. devices must report all that apply."
Fix them up as best we can.
This will prevent errors like..
agpgart: Found an AGP 3.5 compliant device at 0000:00:00.0.
agpgart: req mode 1f000201 bridge_agpstat 1f000a14 vga_agpstat 2f000217.
agpgart: Device is in legacy mode, falling back to 2.x
agpgart: Putting AGP V2 device at 0000:00:00.0 into 0x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 0x mode
agpgart: Putting AGP V2 device at 0000:01:00.1 into 0x mode
https://bugs.freedesktop.org/show_bug.cgi?id=8816
Signed-off-by: Dave Jones <davej@redhat.com>
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* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
[AGPGART] uninorth: Add module param 'aperture' for aperture size
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In contrast to most if not all PC BIOSes, OpenFirmware (OF) on PowerMacs with
UniNorth bridges does not allow changing the aperture size. The size set up by
OF is usually 16 MB, which is too low for graphics intensive environments.
Hence, add a module parameter that allows changing the aperture size at driver
initialization time. When the parameter is not specified, the default is 32 MB.
Signed-off-by: Michel Dänzer <michel@tungstengraphics.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Jones <davej@redhat.com>
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