Benjamin Herrenschmidt ad892a63f6 powerpc: Fix PCI ROM access ... A couple of issues crept in since about 2.6.27 related to accessing PCI device ROMs on various powerpc machines. First, historically, we don't allocate the ROM resource in the resource tree. I'm not entirely certain of why, I susepct they often contained garbage on x86 but it's hard to tell. This causes the current generic code to always call pci_assign_resource() when trying to access the said ROM from sysfs, which will try to re-assign some new address regardless of what the ROM BAR was already set to at boot time. This can be a problem on hypervisor platforms like pSeries where we aren't supposed to move PCI devices around (and in fact probably can't). Second, our code that generates the PCI tree from the OF device-tree (instead of doing config space probing) which we mostly use on pseries at the moment, didn't set the (new) flag IORESOURCE_SIZEALIGN on any resource. That means that any attempt at re-assigning such a resource with pci_assign_resource() would fail due to resource_alignment() returning 0. This fixes this by doing these two things: - The code that calculates resource flags based on the OF device-node is improved to set IORESOURCE_SIZEALIGN on any valid BAR, and while at it also set IORESOURCE_READONLY for ROMs since we were lacking that too - We now allocate ROM resources as part of the resource tree. However to limit the chances of nasty conflicts due to busted firmwares, we only do it on the second pass of our two-passes allocation scheme, so that all valid and enabled BARs get precedence. This brings pSeries back the ability to access PCI ROMs via sysfs (and thus initialize various video cards from X etc...). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2009-05-15 16:43:42 +10:00
..
vdso32	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
vdso64	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
.gitignore	powerpc: Ignore generated vmlinux.lds in git	2008-10-07 14:26:18 +11:00
align.c	powerpc: Fix load/store float double alignment handler	2009-02-26 14:02:53 +11:00
asm-offsets.c	Merge commit 'origin/master' into next	2009-03-30 14:04:53 +11:00
audit.c
btext.c	powerpc: Use the common ascii hex helpers	2008-08-20 16:34:57 +10:00
cacheinfo.c	powerpc/cacheinfo: Rename cache_dir per-cpu variable	2009-01-13 14:48:02 +11:00
cacheinfo.h	powerpc: Rewrite sysfs processor cache info code	2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S	powerpc/mm: e300c2/c3/c4 TLB errata workaround	2009-03-24 13:47:32 +11:00
cpu_setup_44x.S	AMCC PPC 460SX redwood SoC platform initial framework	2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S	powerpc/fsl-booke: Cleanup init/exception setup to be runtime	2009-01-28 18:16:50 -06:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S	powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit	2008-09-15 11:08:35 -07:00
cputable.c	powerpc/pseries: Really fix the oprofile CPU type on pseries	2009-05-15 16:43:42 +10:00
crash_dump.c	powerpc: Unify opcode definitions and support	2009-02-23 10:48:56 +11:00
crash.c
dbell.c	powerpc: Add support for using doorbells for SMP IPI	2009-02-23 15:53:03 +11:00
dma-iommu.c	powerpc: Change u64/s64 to a long long integer type	2009-01-13 14:47:59 +11:00
dma.c	dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)	2009-04-07 08:31:11 -07:00
entry_32.S	powerpc: Unify opcode definitions and support	2009-02-23 10:48:56 +11:00
entry_64.S	powerpc64, ftrace: save toc only on modules for function graph	2009-02-23 10:48:54 +11:00
firmware.c
fpu.S	powerpc: Disable VSX or current process in giveup_fpu/altivec	2009-04-07 15:18:59 +10:00
ftrace.c	powerpc/ftrace: Fix printf format warning	2009-04-07 15:19:00 +10:00
head_8xx.S	powerpc: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:38 -07:00
head_32.S	powerpc: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:38 -07:00
head_40x.S	powerpc: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:38 -07:00
head_44x.S	powerpc: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:38 -07:00
head_64.S	powerpc/kconfig: Kill PPC_MULTIPLATFORM	2009-03-11 17:11:35 +11:00
head_booke.h	Merge commit 'jwb/next' into next	2009-03-03 13:30:03 +11:00
head_fsl_booke.S	powerpc: convert to use __HEAD and HEAD_TEXT macros.	2009-04-26 09:20:38 -07:00
ibmebus.c	powerpc: struct device - replace bus_id with dev_name(), dev_set_name()	2008-12-16 15:53:38 +11:00
idle_6xx.S	powerpc: Fix for getting CPU number in power_save_ppc32_restore()	2008-09-03 20:53:47 +10:00
idle_e500.S	powerpc: Fix for getting CPU number in power_save_ppc32_restore()	2008-09-03 20:53:47 +10:00
idle_power4.S
idle.c	powerpc: ftrace, do not latency trace idle	2008-11-20 10:51:15 -08:00
init_task.c	take init_fs to saner place	2008-12-31 18:07:42 -05:00
io.c
iomap.c
iommu.c	powerpc: Change u64/s64 to a long long integer type	2009-01-13 14:47:59 +11:00
irq.c	powerpc: Print information about mapping hw irqs to virtual irqs	2009-04-07 15:19:00 +10:00
isa-bridge.c
kgdb.c	kgdb, x86, arm, mips, powerpc: ignore user space single stepping	2008-09-26 10:36:41 -05:00
kprobes.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-01-07 11:31:52 -08:00
l2cr_6xx.S
legacy_serial.c
lparcfg.c	powerpc/pseries: Add dispatch dispersion statistics	2009-04-07 15:18:59 +10:00
machine_kexec_32.c
machine_kexec_64.c	powerpc/32: Setup OF properties for kdump	2008-12-23 15:13:29 +11:00
machine_kexec.c	powerpc: Allow mem=x cmdline to work with 4G+	2009-05-15 16:43:41 +10:00
Makefile	powerpc/kconfig: Kill PPC_MULTIPLATFORM	2009-03-11 17:11:35 +11:00
misc_32.S	powerpc/44x: Support 16K/64K base page sizes on 44x	2008-12-29 09:53:25 +11:00
misc_64.S	powerpc: Disable VSX or current process in giveup_fpu/altivec	2009-04-07 15:18:59 +10:00
misc.S	powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit	2008-09-15 11:08:35 -07:00
module_32.c	powerpc/ppc32: ftrace, dynamic ftrace to handle modules	2008-11-20 10:52:53 -08:00
module_64.c	powerpc: Unify opcode definitions and support	2009-02-23 10:48:56 +11:00
module.c	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
msi.c	powerpc/PCI: include pci.h in powerpc MSI implementation	2009-03-25 08:54:29 -07:00
nvram_64.c
of_device.c	powerpc: struct device - replace bus_id with dev_name(), dev_set_name()	2008-12-16 15:53:38 +11:00
of_platform.c	dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)	2009-04-07 08:31:11 -07:00
paca.c	powerpc: Update page-in counter for CMM	2008-11-05 22:08:28 +11:00
pci_32.c	powerpc/pci: Fix PCI<->OF matching of old style multifunc devices	2009-02-23 10:48:57 +11:00
pci_64.c	powerpc: Fix PCI ROM access	2009-05-15 16:43:42 +10:00
pci_dn.c
pci-common.c	powerpc: Fix PCI ROM access	2009-05-15 16:43:42 +10:00
pmc.c
ppc32.h
ppc_ksyms.c	powerpc: Export cacheable_memzero as its now used in a driver	2009-01-08 16:25:17 +11:00
ppc_save_regs.S	powerpc: Prepare xmon_save_regs for use with kdump	2008-12-23 15:13:28 +11:00
proc_ppc64.c
process.c	Simplify copy_thread()	2009-04-02 19:04:51 -07:00
prom_init_check.sh	powerpc: Print linux_banner in prom_init	2009-03-11 17:11:33 +11:00
prom_init.c	powerpc/pseries: Fix ibm,client-architecture comment	2009-04-07 15:18:59 +10:00
prom_parse.c	powerpc: Fix of_node_put() exit path in of_irq_map_one()	2009-04-20 12:18:43 -06:00
prom.c	powerpc: Allow mem=x cmdline to work with 4G+	2009-05-15 16:43:41 +10:00
ptrace32.c	powerpc: Fix ptrace compat wrapper for FPU register access	2009-04-07 15:19:00 +10:00
ptrace.c
reloc_64.S	powerpc: Make the 64-bit kernel as a position-independent executable	2008-09-15 11:08:38 -07:00
rtas_flash.c	proc 2/2: remove struct proc_dir_entry::owner	2009-03-31 01:14:44 +04:00
rtas_pci.c	powerpc/pci: Fix various pseries PCI hotplug issues	2008-11-06 09:31:52 +11:00
rtas-proc.c
rtas-rtc.c
rtas.c	powerpc/pseries: Fix partition migration hang under load	2009-02-23 15:53:04 +11:00
setup_32.c	powerpc/32: Wire up the trampoline code for kdump	2008-12-23 15:13:29 +11:00
setup_64.c	powerpc/mm: Introduce early_init_mmu() on 64-bit	2009-03-24 13:47:34 +11:00
setup-common.c	powerpc: Remove duplicated #include's	2009-04-07 15:18:58 +10:00
setup.h
signal_32.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal_64.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal.h	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
smp-tbsync.c	powerpc: Silence software timebase sync	2008-11-05 22:08:28 +11:00
smp.c	Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-01-02 11:44:09 -08:00
softemu8xx.c	Remove asm/a.out.h files for all architectures without a.out support.	2008-09-06 19:30:24 +01:00
stacktrace.c
suspend.c
swsusp_32.S	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
swsusp_64.c
swsusp_asm64.S	powerpc: Fix 64-bit hibernation with 64k pages	2008-10-07 14:26:20 +11:00
swsusp.c	powerpc/mm: Split mmu_context handling	2008-12-21 14:21:15 +11:00
sys_ppc32.c	compat: generic compat get/settimeofday	2008-10-16 11:21:33 -07:00
syscalls.c
sysfs.c	powerpc: Fix bugs introduced by sysfs changes	2009-03-27 16:58:24 +11:00
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c
time.c	clocksource: pass clocksource to read() callback	2009-04-21 13:41:47 -07:00
traps.c	powerpc: Add support for using doorbells for SMP IPI	2009-02-23 15:53:03 +11:00
udbg_16550.c	powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF	2009-03-11 17:11:34 +11:00
udbg.c	powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF	2009-03-11 17:11:34 +11:00
vdso.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2008-12-28 16:54:33 -08:00
vecemu.c
vector.S
vio.c	workqueue: add to_delayed_work() helper function	2009-04-02 19:04:50 -07:00
vmlinux.lds.S	powerpc: Revert switch to TEXT_TEXT in linker script	2009-04-28 15:55:14 -07:00