42 lines
1.1 KiB
Diff
42 lines
1.1 KiB
Diff
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Subject: [PATCH] qla4xxx: Fix build on some architectures lacking 64-bit I/O
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From: Ben Hutchings <ben@decadent.org.uk>
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Date: Fri, 01 Oct 2010 04:11:07 +0100
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readq() and writeq() are not defined on all archictectures. Where
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they are missing, define fallback implementations (copied from
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qla2xxx).
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Reference: http://bugs.debian.org/598503
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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---
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drivers/scsi/qla4xxx/ql4_nx.h | 15 +++++++++++++++
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1 files changed, 15 insertions(+), 0 deletions(-)
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diff --git a/drivers/scsi/qla4xxx/ql4_nx.h b/drivers/scsi/qla4xxx/ql4_nx.h
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index 931ad3f..85fe6cf 100644
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--- a/drivers/scsi/qla4xxx/ql4_nx.h
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+++ b/drivers/scsi/qla4xxx/ql4_nx.h
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@@ -776,4 +776,19 @@ struct crb_addr_pair {
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#define MIU_TEST_AGT_WRDATA_UPPER_LO (0x0b0)
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#define MIU_TEST_AGT_WRDATA_UPPER_HI (0x0b4)
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+#ifndef readq
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+static inline u64 readq(void __iomem *addr)
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+{
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+ return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
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+}
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+#endif
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+
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+#ifndef writeq
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+static inline void writeq(u64 val, void __iomem *addr)
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+{
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+ writel(((u32) (val)), (addr));
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+ writel(((u32) (val >> 32)), (addr + 4));
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+}
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+#endif
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+
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#endif
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--
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1.7.1
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