[PATCH 18/19] [not for merge] ieee1275 debugging info

[Daniel Axtens]

This is also handy for debugging.

Signed-off-by: Daniel Axtens <d...@axtens.net>
---
 grub-core/kern/ieee1275/init.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 0fb7bae280df..f70cb134178b 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -243,6 +243,7 @@ regions_claim (grub_uint64_t addr, grub_uint64_t len, 
grub_memory_type_t type,
    */
   if (rmo_top > RUNTIME_MIN_SPACE)
     {
+      grub_printf ("was %llx - %llx, ", addr, addr + len);
       linux_rmo_save = grub_min (0x30000000, rmo_top) - RUNTIME_MIN_SPACE;
       if ((addr < linux_rmo_save) && ((addr + len) > linux_rmo_save))
        len = linux_rmo_save - addr;
@@ -253,6 +254,7 @@ regions_claim (grub_uint64_t addr, grub_uint64_t len, 
grub_memory_type_t type,
          addr = 0x30000000;
          len -= RUNTIME_MIN_SPACE;
         }
+      grub_printf ("now %llx - %llx (vs %x)\n", addr, addr + len, 
linux_rmo_save);
     }
 
   if (flags & GRUB_MM_ADD_REGION_CONSECUTIVE)
@@ -315,7 +317,12 @@ static grub_err_t grub_ieee1275_mm_add_region (grub_size_t 
size, unsigned int fl
       /* Ensure we leave enough space to boot
         (be careful of underflow here) */
       if (free_memory <= RUNTIME_MIN_SPACE)
-       return GRUB_ERR_OUT_OF_MEMORY;
+       {
+         grub_printf ("Giving up, already at/over limit\n");
+         return GRUB_ERR_OUT_OF_MEMORY;
+       }
+
+      grub_printf ("ieee1275: free = 0x%x, allocated = 0x%x\n", free_memory, 
allocated_memory);
 
       if (size > free_memory - RUNTIME_MIN_SPACE)
        return GRUB_ERR_OUT_OF_MEMORY;
@@ -324,8 +331,10 @@ static grub_err_t grub_ieee1275_mm_add_region (grub_size_t 
size, unsigned int fl
          total = grub_max(ALIGN_UP(size, 1024 * 1024) + 1024 * 1024, 32 * 1024 
* 1024);
          total = grub_min(free_memory - RUNTIME_MIN_SPACE, total);
        }
+      grub_printf ("ieee1275: looking for %x bytes of memory (%x 
requested)\n", total, size);
 
       grub_machine_mmap_iterate (region_claim, &total);
+      grub_printf ("ieee1275: get memory from fw %s\n", total == 0 ? 
"succeeded" : "failed");
     }
   else
     grub_machine_mmap_iterate (heap_init, &total);
-- 
2.30.2


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