* [PATCH] parisc: Add ioread64_hi_lo() and iowrite64_hi_lo()
@ 2020-09-30 15:20 Helge Deller
0 siblings, 0 replies; only message in thread
From: Helge Deller @ 2020-09-30 15:20 UTC (permalink / raw)
To: linux-parisc, James Bottomley, John David Anglin
The kernel test robot reports missing functions. Add them.
hppa-linux-ld: drivers/firmware/arm_scmi/perf.o: in function `scmi_perf_fc_ring_db':
(.text+0x610): undefined reference to `ioread64_hi_lo'
(.text+0x63c): undefined reference to `iowrite64_hi_lo'
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index ce400417d54e..f03adb1999e7 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -346,6 +346,16 @@ u64 ioread64be(const void __iomem *addr)
return *((u64 *)addr);
}
+u64 ioread64_hi_lo(const void __iomem *addr)
+{
+ u32 low, high;
+
+ high = ioread32(addr + sizeof(u32));
+ low = ioread32(addr);
+
+ return low + ((u64)high << 32);
+}
+
void iowrite8(u8 datum, void __iomem *addr)
{
if (unlikely(INDIRECT_ADDR(addr))) {
@@ -409,6 +419,12 @@ void iowrite64be(u64 datum, void __iomem *addr)
}
}
+void iowrite64_hi_lo(u64 val, void __iomem *addr)
+{
+ iowrite32(val >> 32, addr + sizeof(u32));
+ iowrite32(val, addr);
+}
+
/* Repeating interfaces */
void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
@@ -511,6 +527,7 @@ EXPORT_SYMBOL(ioread32);
EXPORT_SYMBOL(ioread32be);
EXPORT_SYMBOL(ioread64);
EXPORT_SYMBOL(ioread64be);
+EXPORT_SYMBOL(ioread64_hi_lo);
EXPORT_SYMBOL(iowrite8);
EXPORT_SYMBOL(iowrite16);
EXPORT_SYMBOL(iowrite16be);
@@ -518,6 +535,7 @@ EXPORT_SYMBOL(iowrite32);
EXPORT_SYMBOL(iowrite32be);
EXPORT_SYMBOL(iowrite64);
EXPORT_SYMBOL(iowrite64be);
+EXPORT_SYMBOL(iowrite64_hi_lo);
EXPORT_SYMBOL(ioread8_rep);
EXPORT_SYMBOL(ioread16_rep);
EXPORT_SYMBOL(ioread32_rep);
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2020-09-30 15:20 [PATCH] parisc: Add ioread64_hi_lo() and iowrite64_hi_lo() Helge Deller
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