kernel/fiasco/src/kern/ppc32/sys_call_page-ppc32.cpp

   1 INTERFACE:
   2
   3 #include "types.h"
   4
   5 //------------------------------------------------------------------------------
   6 IMPLEMENTATION:
   7
   8 #include "mem_layout.h"
   9 #include "kernel_task.h"
  10 #include "mem_space.h"
  11 #include "vmem_alloc.h"
  12
  13 IMPLEMENT static
  14 void
  15 Sys_call_page::init()
  16 {
  17 #if 0
  18   Mword *sys_calls = (Mword *)Mem_layout::Syscalls_phys;
  19   for(unsigned i = 0; i < Config::PAGE_SIZE; i += sizeof(Mword))
  20     *(sys_calls++) = 0x44000002; //sc
  21
  22   //insert in cache
  23   Kernel_task::kernel_task()->mem_space()->v_insert(
  24         Mem_space::Phys_addr(Mem_layout::Syscalls_phys),
  25         Mem_space::Addr(Mem_layout::Syscalls),
  26         Mem_space::Size(Config::PAGE_SIZE),
  27         Mem_space::Page_cacheable | Mem_space::Page_user_accessible
  28   );
  29
  30   //insert in htab
  31   Kernel_task::kernel_task()->mem_space()->try_htab_fault(Mem_layout::Syscalls);
  32 #endif
  33
  34
  35   Mword *sys_calls = (Mword*)Mem_layout::Syscalls;
  36   if (!Vmem_alloc::page_alloc(sys_calls,
  37                               Vmem_alloc::NO_ZERO_FILL, Vmem_alloc::User))
  38     panic("FIASCO: can't allocate system-call page.\n");
  39   for (unsigned i = 0; i < Config::PAGE_SIZE; i += sizeof(Mword))
  40     *(sys_calls++) = 0x44000002; //sc
  41
  42   Kernel_task::kernel_task()
  43     ->set_attributes(Virt_addr(Mem_layout::Syscalls),
  44                      Page::Attr(Page::Rights::URX(), Page::Type::Normal(),
  45                                 Page::Kern::Global()));
  46
  47   //Mem_unit::flush_cache();
  48 }