diff options
Diffstat (limited to 'grub-core/kern/sparc64/ieee1275/ieee1275.c')
| -rw-r--r-- | grub-core/kern/sparc64/ieee1275/ieee1275.c | 91 | 
1 files changed, 91 insertions, 0 deletions
| diff --git a/grub-core/kern/sparc64/ieee1275/ieee1275.c b/grub-core/kern/sparc64/ieee1275/ieee1275.c new file mode 100644 index 0000000..53be692 --- /dev/null +++ b/grub-core/kern/sparc64/ieee1275/ieee1275.c @@ -0,0 +1,91 @@ +/* + *  GRUB  --  GRand Unified Bootloader + *  Copyright (C) 2009  Free Software Foundation, Inc. + * + *  GRUB is free software: you can redistribute it and/or modify + *  it under the terms of the GNU General Public License as published by + *  the Free Software Foundation, either version 3 of the License, or + *  (at your option) any later version. + * + *  GRUB is distributed in the hope that it will be useful, + *  but WITHOUT ANY WARRANTY; without even the implied warranty of + *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the + *  GNU General Public License for more details. + * + *  You should have received a copy of the GNU General Public License + *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/ieee1275/ieee1275.h> +#include <grub/types.h> + +/* Sun specific ieee1275 interfaces used by GRUB.  */ + +int +grub_ieee1275_claim_vaddr (grub_addr_t vaddr, grub_size_t size) +{ +  struct claim_vaddr_args +  { +    struct grub_ieee1275_common_hdr common; +    grub_ieee1275_cell_t method; +    grub_ieee1275_cell_t ihandle; +    grub_ieee1275_cell_t align; +    grub_ieee1275_cell_t size; +    grub_ieee1275_cell_t virt; +    grub_ieee1275_cell_t catch_result; +  } +  args; + +  INIT_IEEE1275_COMMON (&args.common, "call-method", 5, 2); +  args.method = (grub_ieee1275_cell_t) "claim"; +  args.ihandle = grub_ieee1275_mmu; +  args.align = 0; +  args.size = size; +  args.virt = vaddr; +  args.catch_result = (grub_ieee1275_cell_t) -1; + +  if (IEEE1275_CALL_ENTRY_FN (&args) == -1) +    return -1; +  return args.catch_result; +} + +int +grub_ieee1275_alloc_physmem (grub_addr_t *paddr, grub_size_t size, +			     grub_uint32_t align) +{ +  grub_uint32_t memory_ihandle; +  struct alloc_physmem_args +  { +    struct grub_ieee1275_common_hdr common; +    grub_ieee1275_cell_t method; +    grub_ieee1275_cell_t ihandle; +    grub_ieee1275_cell_t align; +    grub_ieee1275_cell_t size; +    grub_ieee1275_cell_t catch_result; +    grub_ieee1275_cell_t phys_high; +    grub_ieee1275_cell_t phys_low; +  } +  args; +  grub_ssize_t actual = 0; + +  grub_ieee1275_get_property (grub_ieee1275_chosen, "memory", +			      &memory_ihandle, sizeof (memory_ihandle), +			      &actual); +  if (actual != sizeof (memory_ihandle)) +    return -1; + +  if (!align) +    align = 1; + +  INIT_IEEE1275_COMMON (&args.common, "call-method", 4, 3); +  args.method = (grub_ieee1275_cell_t) "claim"; +  args.ihandle = memory_ihandle; +  args.align = (align ? align : 1); +  args.size = size; +  if (IEEE1275_CALL_ENTRY_FN (&args) == -1) +    return -1; + +  *paddr = args.phys_low; + +  return args.catch_result; +} | 
