powerpc/mm/radix: Update machine call back to support new HCALL.

This update the machine dep callback such that we can use the same
callback to register process table. The interface is updated such that
we can easily call H_REGISTER_PROC_TBL hcall. The HCALL itself is
introduced in a later patch.

No functionality change introduced by this patch.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2016-07-13 15:05:28 +05:30 committed by Michael Ellerman
parent 09cf5bcb0c
commit 83209bc861
3 changed files with 16 additions and 6 deletions

View File

@ -256,7 +256,8 @@ struct machdep_calls {
#ifdef CONFIG_ARCH_RANDOM
int (*get_random_seed)(unsigned long *v);
#endif
int (*update_partition_table)(u64);
int (*register_process_table)(unsigned long base, unsigned long page_size,
unsigned long tbl_size);
};
extern void e500_idle(void);

View File

@ -725,8 +725,14 @@ static void native_flush_hash_range(unsigned long number, int local)
local_irq_restore(flags);
}
static int native_update_partition_table(u64 patb1)
static int native_register_proc_table(unsigned long base, unsigned long page_size,
unsigned long table_size)
{
unsigned long patb1 = base << 25; /* VSID */
patb1 |= (page_size << 5); /* sllp */
patb1 |= table_size;
partition_tb->patb1 = cpu_to_be64(patb1);
return 0;
}
@ -743,5 +749,5 @@ void __init hpte_init_native(void)
ppc_md.hugepage_invalidate = native_hugepage_invalidate;
if (cpu_has_feature(CPU_FTR_ARCH_300))
ppc_md.update_partition_table = native_update_partition_table;
ppc_md.register_process_table = native_register_proc_table;
}

View File

@ -21,8 +21,11 @@
#include <trace/events/thp.h>
static int native_update_partition_table(u64 patb1)
static int native_register_process_table(unsigned long base, unsigned long pg_sz,
unsigned long table_size)
{
unsigned long patb1 = base | table_size | PATB_GR;
partition_tb->patb1 = cpu_to_be64(patb1);
return 0;
}
@ -168,7 +171,7 @@ redo:
* of process table here. But our linear mapping also enable us to use
* physical address here.
*/
ppc_md.update_partition_table(__pa(process_tb) | (PRTB_SIZE_SHIFT - 12) | PATB_GR);
ppc_md.register_process_table(__pa(process_tb), 0, PRTB_SIZE_SHIFT - 12);
pr_info("Process table %p and radix root for kernel: %p\n", process_tb, init_mm.pgd);
}
@ -195,7 +198,7 @@ static void __init radix_init_partition_table(void)
void __init radix_init_native(void)
{
ppc_md.update_partition_table = native_update_partition_table;
ppc_md.register_process_table = native_register_process_table;
}
static int __init get_idx_from_shift(unsigned int shift)