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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 4/8] asm-generic: io.h: remove wrong use of IOMEM
Date: Fri, 29 Jan 2021 17:11:12 +0100	[thread overview]
Message-ID: <20210129161116.9971-4-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20210129161116.9971-1-a.fatoum@pengutronix.de>

addr is already __iomem, but we need to force strip that away to use it
as normal pointer. Define __io_virt like Linux does and use it.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 include/asm-generic/io.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 150a97645b6b..a4b0dc4b4337 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -425,6 +425,8 @@ static inline void iowrite64be(u64 value, volatile void __iomem *addr)
 #define IOMEM(addr)	((void __force __iomem *)(addr))
 #endif
 
+#define __io_virt(x) ((void __force *)(x))
+
 #ifndef memset_io
 #define memset_io memset_io
 /**
@@ -438,7 +440,7 @@ static inline void iowrite64be(u64 value, volatile void __iomem *addr)
 static inline void memset_io(volatile void __iomem *addr, int value,
 			     size_t size)
 {
-	memset(IOMEM(addr), value, size);
+	memset(__io_virt(addr), value, size);
 }
 #endif
 
@@ -456,7 +458,7 @@ static inline void memcpy_fromio(void *buffer,
 				 const volatile void __iomem *addr,
 				 size_t size)
 {
-	memcpy(buffer, IOMEM(addr), size);
+	memcpy(buffer, __io_virt(addr), size);
 }
 #endif
 
@@ -473,7 +475,7 @@ static inline void memcpy_fromio(void *buffer,
 static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
 			       size_t size)
 {
-	memcpy(IOMEM(addr), buffer, size);
+	memcpy(__io_virt(addr), buffer, size);
 }
 #endif
 
-- 
2.30.0


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  parent reply	other threads:[~2021-01-29 16:11 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-29 16:11 [PATCH 1/8] commands: usbgadget: remove deprecated s option from help text Ahmad Fatoum
2021-01-29 16:11 ` [PATCH 2/8] asm-generic: define fallback memcpy and memset for device I/O Ahmad Fatoum
2021-02-02 19:03   ` Sascha Hauer
2021-02-02 19:41     ` Ahmad Fatoum
2021-02-04 10:12       ` Sascha Hauer
2021-01-29 16:11 ` [PATCH 3/8] ARM: <asm/io.h>: define macros for I/O memcpy/memset Ahmad Fatoum
2021-01-29 16:11 ` Ahmad Fatoum [this message]
2021-02-01  8:57   ` [PATCH 4/8] asm-generic: io.h: remove wrong use of IOMEM Sascha Hauer
2021-02-01  8:59     ` Ahmad Fatoum
2021-01-29 16:11 ` [PATCH 5/8] ppc: <asm/io.h>: remove duplicate definition Ahmad Fatoum
2021-01-29 16:11 ` [PATCH 6/8] printk: port over Linux print_hex_dump_bytes/print_hex_dump_debug Ahmad Fatoum
2021-01-29 16:11 ` [PATCH 7/8] usb: add fallback ->detect method for USB host drivers Ahmad Fatoum
2021-01-29 16:11 ` [PATCH 8/8] usb: host: ehci: remove duplicated usb_host_detect() calls Ahmad Fatoum
2021-02-01  9:07 ` [PATCH 1/8] commands: usbgadget: remove deprecated s option from help text Sascha Hauer

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