LPAE iommu page table makes sense only for ARM architecture. Add the
corresponding dependency in Kconfig.
This fixes the following runtime warnings on PA-RISC architecture:
WARNING: at drivers/iommu/io-pgtable-arm.c:413
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-next-20150222-00002-gc420256 #2
task: 17ca0000 ti: 17ca8000 task.ti: 17ca8000
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03 0004ff0f 0000001b 104871b0 17ca83c0
r04-07 00001000 00000000 00000000 00000000
r08-11 00000000 40001000 1013b36c 17ca8248
r12-15 00000080 17e712c0 00000000 17c5e100
r16-19 0000000c 105d8eb0 40001000 ffffffff
r20-23 00000000 00800020 1048717c 00000000
r24-27 00001000 00000000 00000009 10774ce0
r28-31 00000000 00000027 17ca8480 10486d44
sr00-03 00000000 00000000 00000000 00000000
sr04-07 00000000 00000000 00000000 00000000
IASQ: 00000000 00000000 IAOQ: 10486df4 10486df8
IIR: 03ffe01f ISR: 00000000 IOR: 17c86e54
CPU: 0 CR30: 17ca8000 CR31: 00000002
ORIG_R28: 00000001
IAOQ[0]: __arm_lpae_unmap+0x144/0x4cc
IAOQ[1]: __arm_lpae_unmap+0x148/0x4cc
RP(r2): arm_lpae_unmap+0x34/0x6c
Backtrace:
[<104871b0>] arm_lpae_unmap+0x34/0x6c
[<10127944>] 0x10127944
[<10168ee0>] do_one_initcall+0x128/0x1dc
[<101028fc>] 0x101028fc
[<10161b48>] kernel_init+0x1c/0x118
[<1015d01c>] end_fault_vector+0x1c/0x24
[<101762ec>] save_stack_trace+0x28/0x60
Signed-off-by: Vincent Stehlé <vincent.stehle@xxxxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
---
Hi,
This can be seen with e.g. Linux next-20150222 on parisc with allmodconfig.
Best regards,
V.
drivers/iommu/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index baa0d97..c73fd72 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -22,6 +22,7 @@ config IOMMU_IO_PGTABLE
config IOMMU_IO_PGTABLE_LPAE
bool "ARMv7/v8 Long Descriptor Format"
+ depends on ARM
select IOMMU_IO_PGTABLE
help
Enable support for the ARM long descriptor pagetable format.
--
2.1.4
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