mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-29 22:14:41 +08:00
e205a9945c
The function arch_sync_dma_for_cpu_all() was used but was missing a prototype declaration. Signed-off-by: Jim Quinlan <jim2101024@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
23 lines
545 B
C
23 lines
545 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/dma-map-ops.h>
|
|
#include <asm/bmips.h>
|
|
#include <asm/io.h>
|
|
|
|
void arch_sync_dma_for_cpu_all(void)
|
|
{
|
|
void __iomem *cbr = BMIPS_GET_CBR();
|
|
u32 cfg;
|
|
|
|
if (boot_cpu_type() != CPU_BMIPS3300 &&
|
|
boot_cpu_type() != CPU_BMIPS4350 &&
|
|
boot_cpu_type() != CPU_BMIPS4380)
|
|
return;
|
|
|
|
/* Flush stale data out of the readahead cache */
|
|
cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
|
|
__raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG);
|
|
__raw_readl(cbr + BMIPS_RAC_CONFIG);
|
|
}
|