39 lines
1.0 KiB
Plaintext
39 lines
1.0 KiB
Plaintext
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From: Jeff Mahoney <jeffm@suse.com>
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Subject: qla4xxx: add workaround for missing readq/writeq
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Patch-mainline: submitted Sep 21, 2010
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Commit f4f5df23 added support for ISP82XX devices but unconditionally
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used readq/writeq without defining it for architectures that don't
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support it natively.
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This patch copies the readq/writeq definitions from the qla2xxx driver
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to allow the code to build on e.g. ppc32 hardware.
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Signed-off-by: Jeff Mahoney <jeffm@suse.com>
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---
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drivers/scsi/qla4xxx/ql4_nx.h | 15 +++++++++++++++
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1 file changed, 15 insertions(+)
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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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