On Tue, Aug 06, 2019 at 05:08:52PM +0200, Frank Wunderlich wrote: > From: Oleksandr Rybalko <r...@ddteam.net> > > In 32bits mode upper bits need to be set to 0, otherwise controller will > try to DMA into not existing memory and stops with error. > > changes since v2: none > > Tested-by: Frank Wunderlich <fran...@public-files.de> > Signed-off-by: Frank Wunderlich <fran...@public-files.de> > Signed-off-by: Oleksandr Rybalko <r...@ddteam.net>
This introduces a warning:
x86: w+ qemu-x86_64
+(qemu-x86_64) writel_with_flush((u32)pp->cmd_slot, port_mmio +
PORT_LST_ADDR);
+(qemu-x86_64) ^
+(qemu-x86_64) arch/x86/include/asm/io.h:71:53: note: in definition of macro
'writel'
+(qemu-x86_64) #define writel(b, addr) (*(volatile u32 *)(addr) = (b))
+(qemu-x86_64) ^
+(qemu-x86_64) drivers/ata/ahci.c:596:2: note: in expansion of macro
'writel_with_flush'
+(qemu-x86_64) ^~~~~~~~~~~~~~~~~
w+(qemu-x86_64) drivers/ata/ahci.c: In function 'ahci_port_start':
w+(qemu-x86_64) drivers/ata/ahci.c:596:20: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
--
Tom
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