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Thomas Petazzoni a988fb806d sparc: fix MSI build failure on Sparc32 
Commit ebd97be635 ('PCI: remove ARCH_SUPPORTS_MSI kconfig option')
removes the ARCH_SUPPORTS_MSI Kconfig option that allowed
architectures to indicate whether they support PCI MSI or not. Now,
PCI MSI support can be compiled in on any architecture thanks to the
use of weak functions thanks to 4287d824f2 ('PCI: use weak functions
for MSI arch-specific functions').

So, architecture specific code is now responsible to ensure that its
PCI MSI code builds in all cases, or be appropriately conditionally
compiled.

On Sparc, the MSI support is only provided for Sparc64, so the
ARCH_SUPPORTS_MSI kconfig option was only selected for SPARC64, and
not for the Sparc architecture as a whole. Therefore, removing
ARCH_SUPPORTS_MSI broke Sparc32 configurations with CONFIG_PCI_MSI=y,
because the Sparc-specific MSI code is not designed to be built on
Sparc32.

To solve this, this commit ensures that the Sparc MSI code is only
built on Sparc64. This is done thanks to a new Kconfig Makefile helper
option SPARC64_PCI_MSI, modeled after the existing SPARC64_PCI. The
SPARC64_PCI_MSI option is an hidden option that is true when both
Sparc64 PCI support is enabled and MSI is enabled. The
arch/sparc/kernel/pci_msi.c file is now only built when
SPARC64_PCI_MSI is true.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2013-10-02 20:02:35 -04:00
..
.gitignore sparc: gitignore a few files 2008-12-04 09:17:15 -08:00
Makefile sparc: fix MSI build failure on Sparc32 2013-10-02 20:02:35 -04:00
apc.c sparc idle: rename pm_idle to sparc_idle 2013-02-17 23:36:56 -05:00
asm-offsets.c [PATCH] sparc32: vm_area_struct access for old Sun SPARCs. 2013-07-10 13:56:10 -07:00
audit.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
auxio_32.c sparc32: Remove sun4 and sun4c from enum sparc_cpu. 2012-05-12 00:23:23 -07:00
auxio_64.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
btext.c sparc: remove several unnecessary module.h include instances 2011-10-31 19:30:54 -04:00
central.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
cherrs.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
chmc.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
compat_audit.c sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
cpu.c sparc64: correctly recognize SPARC64-X chips 2013-03-11 05:06:27 -07:00
cpumap.c support sparc64x chip type in cpumap.c 2013-07-31 19:10:03 -07:00
cpumap.h sparc64: fix and optimize irq distribution 2009-06-16 04:56:28 -07:00
devices.c sparc32: remove sun4c traps 2012-05-11 19:27:46 -07:00
dma.c sparc: remove several unnecessary module.h include instances 2011-10-31 19:30:54 -04:00
ds.c sparc: fix ldom_reboot buffer overflow harder 2013-10-02 20:01:56 -04:00
dtlb_miss.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
dtlb_prot.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ebus.c sparc: move symbol exporters to use export.h not module.h 2011-10-31 19:30:53 -04:00
entry.S sparc32: Fix exit flag passed from traced sys_sigreturn 2013-07-31 19:10:04 -07:00
entry.h sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
etrap_32.S sparc32: introduce support for run-time patching for all shared assembler code 2012-05-27 23:52:49 -07:00
etrap_64.S sparc64: clear syscall_noerror on the entry to syscall, not on the exit 2012-10-14 19:26:52 -04:00
fpu_traps.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ftrace.c sparc64: Add function graph tracer support. 2010-04-12 22:37:26 -07:00
getsetcc.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
head_32.S sparc32: drop swapper_pg_dir 2012-07-26 16:46:15 -07:00
head_64.S sparc64: correctly recognize SPARC64-X chips 2013-03-11 05:06:27 -07:00
helpers.S sparc64: Fix perf_arch_get_caller_regs(). 2010-08-08 22:07:36 -07:00
hvapi.c sparc: fix format string argument for prom_printf() 2012-10-02 23:20:34 -04:00
hvcalls.S sparc64: Add hypervisor interfaces for SPARC-T4 perf counter access. 2012-08-18 23:03:53 -07:00
hvtramp.S sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
idprom.c sparc: Clear out unused asm/machines.h values. 2012-05-11 20:45:18 -07:00
iommu.c SPARC: adapt for dma_map_ops changes 2012-03-28 16:36:34 +02:00
iommu_common.h sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ioport.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
irq.h sparc32: remove runtime btfix support 2012-05-14 14:05:09 -07:00
irq_32.c sparc32: handle leon in irq_32.c 2012-05-27 23:52:44 -07:00
irq_64.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
itlb_miss.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
ivec.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
jump_label.c sparc: Fix even more fallout from system.h split. 2012-03-29 22:40:52 -07:00
kernel.h sparc32: refactor smp boot 2013-02-20 13:36:50 -08:00
kgdb_32.c sparc: explicitly include sched.h to get task_thread_info declaration 2013-02-06 11:04:10 -08:00
kgdb_64.c sparc64: cleanup: Rename ret_from_syscall to ret_from_fork 2013-07-31 19:10:04 -07:00
kprobes.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
kstack.h sparc64: Run NMIs on the hardirq stack. 2010-04-14 02:04:29 -07:00
ktlb.S sparc64: Fix ITLB handler of null page 2013-08-02 17:29:06 -07:00
ldc.c sparc: remove deprecated IRQF_DISABLED 2013-10-02 20:02:35 -04:00
led.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
leon_kernel.c sparc32, leon: Remove separate "ticker" timer for SMP 2013-06-19 02:10:29 -07:00
leon_pci.c sparc32,leon: add support for PCI busn resource for GRPCI2 2013-03-20 11:06:53 -07:00
leon_pci_grpci1.c sparc,leon: Convert to use devm_ioremap_resource 2013-06-19 02:10:30 -07:00
leon_pci_grpci2.c sparc32,leon: add support for PCI busn resource for GRPCI2 2013-03-20 11:06:53 -07:00
leon_pmc.c sparc32, leon: Enable interrupts before going idle to avoid getting stuck 2013-06-19 02:10:29 -07:00
leon_smp.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
mdesc.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
misctrap.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
module.c modules: don't hand 0 to vmalloc. 2012-12-14 13:06:43 +10:30
nmi.c sparc64: Abstract away the %pcr values used to enable/disable NMI 2012-08-18 23:26:19 -07:00
of_device_32.c sparc32: rename sparc_irq_config to sparc_config 2012-04-15 10:28:49 -07:00
of_device_64.c devicetree: add helper inline for retrieving a node's full name 2012-07-06 07:16:34 -05:00
of_device_common.c sparc: move symbol exporters to use export.h not module.h 2011-10-31 19:30:53 -04:00
of_device_common.h sparc: move of_device common code to of_device_common 2009-06-16 04:56:49 -07:00
pci.c PCI changes for the v3.11 merge window: 2013-07-03 16:31:35 -07:00
pci_common.c sparc: Remove unnecessary semicolons 2011-06-07 16:06:34 -07:00
pci_fire.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
pci_impl.h drivers/of: Constify device_node->name and ->path_component_name 2012-11-17 12:05:57 +00:00
pci_msi.c sparc: convert old cpumask API into new one 2011-05-16 13:38:07 -07:00
pci_psycho.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
pci_sabre.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
pci_schizo.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
pci_sun4v.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
pci_sun4v.h sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
pci_sun4v_asm.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
pcic.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
pcr.c sparc64: Add PCR ops for SPARC-T4. 2012-08-18 23:26:19 -07:00
perf_event.c sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads. 2012-10-26 15:18:37 -07:00
pmc.c sparc idle: rename pm_idle to sparc_idle 2013-02-17 23:36:56 -05:00
power.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
process_32.c dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
process_64.c sparc/sysrq: fix inconstistent help message of sysrq key 2013-04-30 17:04:10 -07:00
prom.h of/promtree: make drivers/of/pdt.c no longer sparc-only 2010-10-10 21:53:30 -06:00
prom_32.c sparc: remove several unnecessary module.h include instances 2011-10-31 19:30:54 -04:00
prom_64.c sparc: fix format string argument for prom_printf() 2012-10-02 23:20:34 -04:00
prom_common.c of: Fix locking vs. interrupts 2013-06-13 22:12:14 +01:00
prom_irqtrans.c sparc: Remove unnecessary semicolons 2011-06-07 16:06:34 -07:00
psycho_common.c sparc: Remove unnecessary semicolons 2011-06-07 16:06:34 -07:00
psycho_common.h sparc: remove references to of_device and to_of_device 2010-07-24 09:58:22 -06:00
ptrace_32.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
ptrace_64.c sparc64: Export flush_ptrace_access() (needed by lustre) 2013-09-05 12:12:51 -07:00
reboot.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
rtrap_32.S sparc32: introduce support for run-time patching for all shared assembler code 2012-05-27 23:52:49 -07:00
rtrap_64.S sparc64: Remove trap return code which is now unnecessary. 2012-04-13 13:56:46 -07:00
sbus.c sparc: kernel/sbus.c: fix memory leakage 2013-01-21 14:33:00 -08:00
setup_32.c sparc: kernel: using strlcpy() instead of strcpy() 2013-06-19 02:10:29 -07:00
setup_64.c cpu hw caps support for sparc64x 2013-07-31 19:10:03 -07:00
signal32.c [regression] braino in "sparc: convert to ksignal" 2013-03-02 02:55:16 -05:00
signal_32.c sparc: convert to ksignal 2013-02-14 09:21:16 -05:00
signal_64.c sparc: convert to ksignal 2013-02-14 09:21:16 -05:00
sigutil.h sparc: Allow handling signals when stack is corrupted. 2011-08-20 17:14:54 -07:00
sigutil_32.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
sigutil_64.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
smp_32.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
smp_64.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
sparc_ksyms_32.c sparc32: Implement hard_smp_processor_id() via instruction patching. 2012-05-14 13:31:38 -07:00
sparc_ksyms_64.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
spiterrs.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
sstate.c sparc: Set reboot-cmd using reboot data hypervisor call if available. 2011-08-02 21:28:52 -07:00
stacktrace.c sparc: move symbol exporters to use export.h not module.h 2011-10-31 19:30:53 -04:00
starfire.c sparc: explicitly cast negative phandle checks to s32 2011-01-03 20:02:06 -07:00
sun4d_irq.c Include missing linux/slab.h inclusions 2013-04-29 15:42:01 -04:00
sun4d_smp.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
sun4m_irq.c sparc32: remove remaining users of btfixup 2012-05-14 14:05:08 -07:00
sun4m_smp.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
sun4v_ivec.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
sun4v_tlb_miss.S sparc64: Support transparent huge pages. 2012-10-09 16:23:06 +09:00
sys32.S unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
sys_sparc32.c kernel-wide: fix missing validations on __get/__put/__copy_to/__copy_from_user() 2013-09-11 15:58:18 -07:00
sys_sparc_32.c sparc: switch to use of generic old sigaction 2013-02-03 22:43:35 -05:00
sys_sparc_64.c mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
syscalls.S sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall 2013-07-31 19:10:04 -07:00
sysfs.c sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
systbls.h sparc: switch to generic old sigsuspend 2013-02-03 22:44:37 -05:00
systbls_32.S sparc: switch to use of generic old sigaction 2013-02-03 22:43:35 -05:00
systbls_64.S unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
tadpole.c of/sparc: convert various prom_* functions to use phandle 2010-10-09 02:33:34 -06:00
time_32.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
time_64.c sparc: remove __devinit, __devexit annotations 2013-01-12 15:28:45 -08:00
trampoline_32.S sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
trampoline_64.S sparc64: Fix off by one in trampoline TLB mapping installation loop. 2013-08-22 16:38:46 -07:00
traps_32.c taint: add explicit flag to show whether lock dep is still OK. 2013-01-21 17:17:57 +10:30
traps_64.c dump_stack: consolidate dump_stack() implementations and unify their behaviors 2013-04-30 17:04:02 -07:00
tsb.S sparc64: Fix tsb_grow() in atomic context. 2013-02-20 09:46:08 -08:00
ttable_32.S sparc32: move trap table to a separate file 2012-05-19 23:27:25 -07:00
ttable_64.S sparc64: renamed ttable.S to ttable_64.S 2012-05-19 23:26:41 -07:00
una_asm_32.S sparc32: unaligned memory access (MNA) trap handler bug 2011-02-01 12:39:59 -08:00
una_asm_64.S sparc: Fix .size directive for do_int_load 2011-03-16 18:19:15 -07:00
unaligned_32.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
unaligned_64.c sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads. 2012-10-26 15:18:37 -07:00
utrap.S sparc,sparc64: unify kernel/ 2008-12-04 09:17:21 -08:00
vio.c sparc/kernel/vio.c: add put_device() after device_find_child() 2013-05-04 17:38:18 -07:00
viohs.c sparc: move symbol exporters to use export.h not module.h 2011-10-31 19:30:53 -04:00
visemul.c sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads. 2012-10-26 15:18:37 -07:00
vmlinux.lds.S sparc64: Improvde documentation and readability of atomic backoff code. 2012-10-28 13:04:47 -07:00
windows.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
winfixup.S sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads. 2012-10-26 15:18:37 -07:00
wof.S sparc32: introduce support for run-time patching for all shared assembler code 2012-05-27 23:52:49 -07:00
wuf.S sparc32: introduce support for run-time patching for all shared assembler code 2012-05-27 23:52:49 -07:00