diff options
Diffstat (limited to 'drivers/base/ump/src/common/ump_kernel_priv.h')
| -rwxr-xr-x | drivers/base/ump/src/common/ump_kernel_priv.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/base/ump/src/common/ump_kernel_priv.h b/drivers/base/ump/src/common/ump_kernel_priv.h new file mode 100755 index 00000000000..d44d029fd41 --- /dev/null +++ b/drivers/base/ump/src/common/ump_kernel_priv.h @@ -0,0 +1,71 @@ +/* + * + * (C) COPYRIGHT 2008-2013 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +#ifndef _UMP_KERNEL_PRIV_H_ +#define _UMP_KERNEL_PRIV_H_ + +#ifdef __KERNEL__ +#include <linux/kernel.h> +#include <linux/list.h> +#include <asm/cacheflush.h> +#endif + + +#define UMP_EXPECTED_IDS 64 +#define UMP_MAX_IDS 32768 + +#ifdef __KERNEL__ +#define UMP_ASSERT(expr) \ + if (!(expr)) { \ + printk(KERN_ERR "UMP: Assertion failed! %s,%s,%s,line=%d\n",\ + #expr,__FILE__,__func__,__LINE__); \ + BUG(); \ + } + +static inline void ump_sync_to_memory(uint64_t paddr, void* vaddr, size_t sz) +{ +#ifdef CONFIG_ARM + __cpuc_flush_dcache_area(vaddr, sz); + outer_flush_range(paddr, paddr+sz); +#elif defined(CONFIG_X86) + struct scatterlist scl = {0, }; + sg_set_page(&scl, pfn_to_page(PFN_DOWN(paddr)), sz, + paddr & (PAGE_SIZE -1 )); + dma_sync_sg_for_cpu(NULL, &scl, 1, DMA_TO_DEVICE); + mb(); /* for outer_sync (if needed) */ +#else +#error Implement cache maintenance for your architecture here +#endif +} + +static inline void ump_sync_to_cpu(uint64_t paddr, void* vaddr, size_t sz) +{ +#ifdef CONFIG_ARM + __cpuc_flush_dcache_area(vaddr, sz); + outer_flush_range(paddr, paddr+sz); +#elif defined(CONFIG_X86) + struct scatterlist scl = {0, }; + sg_set_page(&scl, pfn_to_page(PFN_DOWN(paddr)), sz, + paddr & (PAGE_SIZE -1 )); + dma_sync_sg_for_cpu(NULL, &scl, 1, DMA_FROM_DEVICE); +#else +#error Implement cache maintenance for your architecture here +#endif +} +#endif /* __KERNEL__*/ +#endif /* _UMP_KERNEL_PRIV_H_ */ + |