diff options
| -rw-r--r-- | include/lmb.h | 56 | ||||
| -rw-r--r-- | lib/lmb.c | 85 |
2 files changed, 140 insertions, 1 deletions
diff --git a/include/lmb.h b/include/lmb.h index aee2f9fcdaa..0e8426f4379 100644 --- a/include/lmb.h +++ b/include/lmb.h @@ -91,6 +91,50 @@ phys_addr_t lmb_alloc_addr(phys_addr_t base, phys_size_t size); phys_size_t lmb_get_free_size(phys_addr_t addr); /** + * lmb_alloc_flags() - Allocate memory region with specified attributes + * @size: Size of the region requested + * @align: Alignment of the memory region requested + * @flags: Memory region attributes to be set + * + * Allocate a region of memory with the attributes specified through the + * parameter. + * + * Return: base address on success, 0 on error + */ +phys_addr_t lmb_alloc_flags(phys_size_t size, ulong align, uint flags); + +/** + * lmb_alloc_base_flags() - Allocate specified memory region with specified attributes + * @size: Size of the region requested + * @align: Alignment of the memory region requested + * @max_addr: Maximum address of the requested region + * @flags: Memory region attributes to be set + * + * Allocate a region of memory with the attributes specified through the + * parameter. The max_addr parameter is used to specify the maximum address + * below which the requested region should be allocated. + * + * Return: base address on success, 0 on error + */ +phys_addr_t lmb_alloc_base_flags(phys_size_t size, ulong align, + phys_addr_t max_addr, uint flags); + +/** + * lmb_alloc_addr_flags() - Allocate specified memory address with specified attributes + * @base: Base Address requested + * @size: Size of the region requested + * @flags: Memory region attributes to be set + * + * Allocate a region of memory with the attributes specified through the + * parameter. The base parameter is used to specify the base address + * of the requested region. + * + * Return: base address on success, 0 on error + */ +phys_addr_t lmb_alloc_addr_flags(phys_addr_t base, phys_size_t size, + uint flags); + +/** * lmb_is_reserved_flags() - test if address is in reserved region with flag bits set * * The function checks if a reserved region comprising @addr exists which has @@ -102,6 +146,18 @@ phys_size_t lmb_get_free_size(phys_addr_t addr); */ int lmb_is_reserved_flags(phys_addr_t addr, int flags); +/** + * lmb_free_flags() - Free up a region of memory + * @base: Base Address of region to be freed + * @size: Size of the region to be freed + * @flags: Memory region attributes + * + * Free up a region of memory. + * + * Return: 0 if successful, -1 on failure + */ +long lmb_free_flags(phys_addr_t base, phys_size_t size, uint flags); + long lmb_free(phys_addr_t base, phys_size_t size); void lmb_dump_all(void); diff --git a/lib/lmb.c b/lib/lmb.c index 380d92a6718..a38537af9c3 100644 --- a/lib/lmb.c +++ b/lib/lmb.c @@ -479,7 +479,7 @@ long lmb_add(phys_addr_t base, phys_size_t size) return lmb_add_region(lmb_rgn_lst, base, size); } -long lmb_free(phys_addr_t base, phys_size_t size) +static long __lmb_free(phys_addr_t base, phys_size_t size) { struct lmb_region *rgn; struct alist *lmb_rgn_lst = &lmb.used_mem; @@ -530,6 +530,27 @@ long lmb_free(phys_addr_t base, phys_size_t size) rgn[i].flags); } +long lmb_free(phys_addr_t base, phys_size_t size) +{ + return __lmb_free(base, size); +} + +/** + * lmb_free_flags() - Free up a region of memory + * @base: Base Address of region to be freed + * @size: Size of the region to be freed + * @flags: Memory region attributes + * + * Free up a region of memory. + * + * Return: 0 if successful, -1 on failure + */ +long lmb_free_flags(phys_addr_t base, phys_size_t size, + __always_unused uint flags) +{ + return __lmb_free(base, size); +} + long lmb_reserve_flags(phys_addr_t base, phys_size_t size, enum lmb_flags flags) { struct alist *lmb_rgn_lst = &lmb.used_mem; @@ -613,6 +634,23 @@ phys_addr_t lmb_alloc(phys_size_t size, ulong align) return lmb_alloc_base(size, align, LMB_ALLOC_ANYWHERE); } +/** + * lmb_alloc_flags() - Allocate memory region with specified attributes + * @size: Size of the region requested + * @align: Alignment of the memory region requested + * @flags: Memory region attributes to be set + * + * Allocate a region of memory with the attributes specified through the + * parameter. + * + * Return: base address on success, 0 on error + */ +phys_addr_t lmb_alloc_flags(phys_size_t size, ulong align, uint flags) +{ + return __lmb_alloc_base(size, align, LMB_ALLOC_ANYWHERE, + flags); +} + phys_addr_t lmb_alloc_base(phys_size_t size, ulong align, phys_addr_t max_addr) { phys_addr_t alloc; @@ -626,6 +664,33 @@ phys_addr_t lmb_alloc_base(phys_size_t size, ulong align, phys_addr_t max_addr) return alloc; } +/** + * lmb_alloc_base_flags() - Allocate specified memory region with specified attributes + * @size: Size of the region requested + * @align: Alignment of the memory region requested + * @max_addr: Maximum address of the requested region + * @flags: Memory region attributes to be set + * + * Allocate a region of memory with the attributes specified through the + * parameter. The max_addr parameter is used to specify the maximum address + * below which the requested region should be allocated. + * + * Return: base address on success, 0 on error + */ +phys_addr_t lmb_alloc_base_flags(phys_size_t size, ulong align, + phys_addr_t max_addr, uint flags) +{ + phys_addr_t alloc; + + alloc = __lmb_alloc_base(size, align, max_addr, flags); + + if (alloc == 0) + printf("ERROR: Failed to allocate 0x%lx bytes below 0x%lx.\n", + (ulong)size, (ulong)max_addr); + + return alloc; +} + static phys_addr_t __lmb_alloc_addr(phys_addr_t base, phys_size_t size, enum lmb_flags flags) { @@ -660,6 +725,24 @@ phys_addr_t lmb_alloc_addr(phys_addr_t base, phys_size_t size) return __lmb_alloc_addr(base, size, LMB_NONE); } +/** + * lmb_alloc_addr_flags() - Allocate specified memory address with specified attributes + * @base: Base Address requested + * @size: Size of the region requested + * @flags: Memory region attributes to be set + * + * Allocate a region of memory with the attributes specified through the + * parameter. The base parameter is used to specify the base address + * of the requested region. + * + * Return: base address on success, 0 on error + */ +phys_addr_t lmb_alloc_addr_flags(phys_addr_t base, phys_size_t size, + uint flags) +{ + return __lmb_alloc_addr(base, size, flags); +} + /* Return number of bytes from a given address that are free */ phys_size_t lmb_get_free_size(phys_addr_t addr) { |