Commit d1b0d842 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky

s390/mm: rename addressing_mode to s390_user_mode

Renaming the globally visible variable "user_mode" to "addressing_mode" in
order to fix a name clash was not a good idea. (Commit 37fe1d73 "s390/mm:
rename user_mode variable to addressing_mode")
Looking at the code after a couple of weeks one thinks: addressing mode of
what?
So rename the variable again. This time to s390_user_mode. Which hopefully
makes more sense.
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 46e88947
......@@ -57,7 +57,7 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
pgd_t *pgd = mm->pgd;
S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd);
if (addressing_mode != HOME_SPACE_MODE) {
if (s390_user_mode != HOME_SPACE_MODE) {
/* Load primary space page table origin. */
asm volatile(LCTL_OPCODE" 1,1,%0\n"
: : "m" (S390_lowcore.user_asce) );
......
......@@ -60,7 +60,7 @@ void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
#define SECONDARY_SPACE_MODE 2
#define HOME_SPACE_MODE 3
extern unsigned int addressing_mode;
extern unsigned int s390_user_mode;
/*
* Machine features detected in head.S
......
......@@ -40,7 +40,7 @@ static void disable_runtime_instr(void)
static void init_runtime_instr_cb(struct runtime_instr_cb *cb)
{
cb->buf_limit = 0xfff;
if (addressing_mode == HOME_SPACE_MODE)
if (s390_user_mode == HOME_SPACE_MODE)
cb->home_space = 1;
cb->int_requested = 1;
cb->pstate = 1;
......
......@@ -302,8 +302,8 @@ static int __init parse_vmalloc(char *arg)
}
early_param("vmalloc", parse_vmalloc);
unsigned int addressing_mode = PRIMARY_SPACE_MODE;
EXPORT_SYMBOL_GPL(addressing_mode);
unsigned int s390_user_mode = PRIMARY_SPACE_MODE;
EXPORT_SYMBOL_GPL(s390_user_mode);
static int set_amode_primary(void)
{
......@@ -326,9 +326,9 @@ static int set_amode_primary(void)
static int __init early_parse_user_mode(char *p)
{
if (p && strcmp(p, "primary") == 0)
addressing_mode = PRIMARY_SPACE_MODE;
s390_user_mode = PRIMARY_SPACE_MODE;
else if (!p || strcmp(p, "home") == 0)
addressing_mode = HOME_SPACE_MODE;
s390_user_mode = HOME_SPACE_MODE;
else
return 1;
return 0;
......@@ -337,7 +337,7 @@ early_param("user_mode", early_parse_user_mode);
static void setup_addressing_mode(void)
{
if (addressing_mode == PRIMARY_SPACE_MODE) {
if (s390_user_mode == PRIMARY_SPACE_MODE) {
if (set_amode_primary())
pr_info("Address spaces switched, "
"mvcos available\n");
......
......@@ -85,7 +85,7 @@ struct vdso_data *vdso_data = &vdso_data_store.data;
static void vdso_init_data(struct vdso_data *vd)
{
vd->ectg_available =
addressing_mode != HOME_SPACE_MODE && test_facility(31);
s390_user_mode != HOME_SPACE_MODE && test_facility(31);
}
#ifdef CONFIG_64BIT
......@@ -102,7 +102,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore)
lowcore->vdso_per_cpu_data = __LC_PASTE;
if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)
if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)
return 0;
segment_table = __get_free_pages(GFP_KERNEL, SEGMENT_ORDER);
......@@ -147,7 +147,7 @@ void vdso_free_per_cpu(struct _lowcore *lowcore)
unsigned long segment_table, page_table, page_frame;
u32 *psal, *aste;
if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)
if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)
return;
psal = (u32 *)(addr_t) lowcore->paste[4];
......@@ -165,7 +165,7 @@ static void vdso_init_cr5(void)
{
unsigned long cr5;
if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled)
if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)
return;
cr5 = offsetof(struct _lowcore, paste);
__ctl_load(cr5, 5, 5);
......
......@@ -111,7 +111,7 @@ static inline int user_space_fault(unsigned long trans_exc_code)
if (trans_exc_code == 2)
/* Access via secondary space, set_fs setting decides */
return current->thread.mm_segment.ar4;
if (addressing_mode == HOME_SPACE_MODE)
if (s390_user_mode == HOME_SPACE_MODE)
/* User space if the access has been done via home space. */
return trans_exc_code == 3;
/*
......
......@@ -796,7 +796,7 @@ int s390_enable_sie(void)
struct mm_struct *mm, *old_mm;
/* Do we have switched amode? If no, we cannot do sie */
if (addressing_mode == HOME_SPACE_MODE)
if (s390_user_mode == HOME_SPACE_MODE)
return -EINVAL;
/* Do we have pgstes? if yes, we are done */
......
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