diff options
Diffstat (limited to 'usr/src/uts/sun4v/sys/ldc.h')
| -rw-r--r-- | usr/src/uts/sun4v/sys/ldc.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/usr/src/uts/sun4v/sys/ldc.h b/usr/src/uts/sun4v/sys/ldc.h index f2450ed301..47f50499a9 100644 --- a/usr/src/uts/sun4v/sys/ldc.h +++ b/usr/src/uts/sun4v/sys/ldc.h @@ -20,8 +20,7 @@ */ /* - * Copyright 2010 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _LDC_H @@ -126,6 +125,11 @@ typedef struct ldc_mem_cookie { #define LDC_DIRECT_MAP 0x2 /* share mem direct access */ #define LDC_IO_MAP 0x4 /* share mem for IOMMU/DMA access */ +/* + * Default mapin size supported with legacy f/w. + */ +#define LDC_DIRECT_MAP_SIZE_DEFAULT (64 * 1024 * 1024) + /* LDC Memory Access Permissions */ #define LDC_MEM_R 0x1 /* Memory region is read only */ #define LDC_MEM_W 0x2 /* Memory region is write only */ @@ -153,6 +157,11 @@ typedef struct ldc_mem_info { ldc_mstatus_t status; /* dring/mem handle status */ } ldc_mem_info_t; +/* LDC channel info */ +typedef struct ldc_info { + uint64_t direct_map_size_max; /* Max direct mapin space size */ +} ldc_info_t; + /* API functions */ int ldc_register(ldc_cnex_t *cinfo); int ldc_unregister(ldc_cnex_t *cinfo); @@ -207,6 +216,7 @@ int ldc_mem_dring_acquire(ldc_dring_handle_t dhandle, uint64_t start, uint64_t end); int ldc_mem_dring_release(ldc_dring_handle_t dhandle, uint64_t start, uint64_t end); +int ldc_info(ldc_handle_t handle, ldc_info_t *info); /* * Shared Memory (Direct Map) Acquire and Release API |