diff options
| -rw-r--r-- | arch/powerpc/kernel/fadump.c | 34 |
1 files changed, 10 insertions, 24 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 3cf621080427..bff909151b44 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -391,6 +391,8 @@ int __init fadump_reserve_mem(void) else memory_boundary = memblock_end_of_DRAM(); + size = get_fadump_area_size(); + fw_dump.reserve_dump_area_size = size; if (fw_dump.dump_active) { pr_info("Firmware-assisted dump is active.\n"); @@ -416,12 +418,15 @@ int __init fadump_reserve_mem(void) be64_to_cpu(fdm_active->rmr_region.destination_address) + be64_to_cpu(fdm_active->rmr_region.source_len); pr_debug("fadumphdr_addr = %pa\n", &fw_dump.fadumphdr_addr); - fw_dump.reserve_dump_area_start = base; - fw_dump.reserve_dump_area_size = size; - } else { - size = get_fadump_area_size(); /* + * Start address of reserve dump area (permanent reservation) + * for re-registering FADump after dump capture. + */ + fw_dump.reserve_dump_area_start = + be64_to_cpu(fdm_active->cpu_state_data.destination_address); + } else { + /* * Reserve memory at an offset closer to bottom of the RAM to * minimize the impact of memory hot-remove operation. We can't * use memblock_find_in_range() here since it doesn't allocate @@ -447,7 +452,6 @@ int __init fadump_reserve_mem(void) (unsigned long)(memblock_phys_mem_size() >> 20)); fw_dump.reserve_dump_area_start = base; - fw_dump.reserve_dump_area_size = size; return fadump_cma_init(); } return 1; @@ -1265,34 +1269,16 @@ static void fadump_release_memory(unsigned long begin, unsigned long end) static void fadump_invalidate_release_mem(void) { - unsigned long reserved_area_start, reserved_area_end; - unsigned long destination_address; - mutex_lock(&fadump_mutex); if (!fw_dump.dump_active) { mutex_unlock(&fadump_mutex); return; } - destination_address = be64_to_cpu(fdm_active->cpu_state_data.destination_address); fadump_cleanup(); mutex_unlock(&fadump_mutex); - /* - * Save the current reserved memory bounds we will require them - * later for releasing the memory for general use. - */ - reserved_area_start = fw_dump.reserve_dump_area_start; - reserved_area_end = reserved_area_start + - fw_dump.reserve_dump_area_size; - /* - * Setup reserve_dump_area_start and its size so that we can - * reuse this reserved memory for Re-registration. - */ - fw_dump.reserve_dump_area_start = destination_address; - fw_dump.reserve_dump_area_size = get_fadump_area_size(); - - fadump_release_memory(reserved_area_start, reserved_area_end); + fadump_release_memory(fw_dump.boot_memory_size, memblock_end_of_DRAM()); fadump_free_cpu_notes_buf(); /* Initialize the kernel dump memory structure for FAD registration. */ |