add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/pci/controller/pcie-iproc-msi.c
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@@ -302,11 +302,12 @@
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 static inline u32 decode_msi_hwirq(struct iproc_msi *msi, u32 eq, u32 head)
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 {
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-	u32 *msg, hwirq;
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+	u32 __iomem *msg;
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+	u32 hwirq;
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 	unsigned int offs;
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 	offs = iproc_msi_eq_offset(msi, eq) + head * sizeof(u32);
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-	msg = (u32 *)(msi->eq_cpu + offs);
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+	msg = (u32 __iomem *)(msi->eq_cpu + offs);
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 	hwirq = readl(msg);
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 	hwirq = (hwirq >> 5) + (hwirq & 0x1f);
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@@ -376,7 +377,7 @@
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 		/*
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 		 * Now go read the tail pointer again to see if there are new
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-		 * oustanding events that came in during the above window.
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+		 * outstanding events that came in during the above window.
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 		 */
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 	} while (true);
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@@ -614,9 +615,9 @@
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 	}
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 	/* Reserve memory for event queue and make sure memories are zeroed */
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-	msi->eq_cpu = dma_zalloc_coherent(pcie->dev,
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-					  msi->nr_eq_region * EQ_MEM_REGION_SIZE,
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-					  &msi->eq_dma, GFP_KERNEL);
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+	msi->eq_cpu = dma_alloc_coherent(pcie->dev,
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+					 msi->nr_eq_region * EQ_MEM_REGION_SIZE,
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+					 &msi->eq_dma, GFP_KERNEL);
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 	if (!msi->eq_cpu) {
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 		ret = -ENOMEM;
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 		goto free_irqs;