diff options
| author | Steven J. Hill <steven.hill@cavium.com> | 2017-08-29 17:40:31 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-09-04 21:19:03 +0200 |
| commit | 9438a86a07f74670ad730ee5799a8006ae668ab9 (patch) | |
| tree | 89f7a191619efaf4a197efedd10af431c1d20ba4 /arch/mips/include/asm/octeon/cvmx-bootmem.h | |
| parent | MIPS: lantiq: Remove the arch/mips/lantiq/xway/reset.c implementation (diff) | |
| download | linux-9438a86a07f74670ad730ee5799a8006ae668ab9.tar.xz linux-9438a86a07f74670ad730ee5799a8006ae668ab9.zip | |
MIPS: Octeon: Add support for accessing the boot vector.
Used by the Octeon watchdog driver to get the address of the
firmware boot vector.
Signed-off-by: Steven J. Hill <steven.hill@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-watchdog@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17206/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/octeon/cvmx-bootmem.h')
| -rw-r--r-- | arch/mips/include/asm/octeon/cvmx-bootmem.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-bootmem.h b/arch/mips/include/asm/octeon/cvmx-bootmem.h index 374562507d0b..72d2e403a6e4 100644 --- a/arch/mips/include/asm/octeon/cvmx-bootmem.h +++ b/arch/mips/include/asm/octeon/cvmx-bootmem.h @@ -255,6 +255,34 @@ extern void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr, uint64_t max_addr, uint64_t align, char *name); +/** + * Allocate if needed a block of memory from a specific range of the + * free list that was passed to the application by the bootloader, and + * assign it a name in the global named block table. (part of the + * cvmx_bootmem_descriptor_t structure) Named blocks can later be + * freed. If the requested name block is already allocated, return + * the pointer to block of memory. If request cannot be satisfied + * within the address range specified, NULL is returned + * + * @param size Size in bytes of block to allocate + * @param min_addr minimum address of range + * @param max_addr maximum address of range + * @param align Alignment of memory to be allocated. (must be a power of 2) + * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes + * @param init Initialization function + * + * The initialization function is optional, if omitted the named block + * is initialized to all zeros when it is created, i.e. once. + * + * @return pointer to block of memory, NULL on error + */ +void *cvmx_bootmem_alloc_named_range_once(uint64_t size, + uint64_t min_addr, + uint64_t max_addr, + uint64_t align, + char *name, + void (*init) (void *)); + extern int cvmx_bootmem_free_named(char *name); /** |