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s390/appldata: pass parameter list pointer to appldata_asm

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In preparation for CONFIG_VMAP_STACK=y move the allocation of the
struct appldata_parameter_list to the caller of appldata_asm().

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2018-09-06 10:43:27 +02:00
parent 346e485d42
commit f689789a28
3 changed files with 16 additions and 11 deletions
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19
arch/s390/include/asm/appldata.h
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@@ -40,26 +40,27 @@ struct appldata_product_id {
u16 mod_lvl; /* modification level */
} __attribute__ ((packed));
static inline int appldata_asm(struct appldata_product_id *id,
static inline int appldata_asm(struct appldata_parameter_list *parm_list,
struct appldata_product_id *id,
unsigned short fn, void *buffer,
unsigned short length)
{
struct appldata_parameter_list parm_list;
int ry;
if (!MACHINE_IS_VM)
return -EOPNOTSUPP;
parm_list.diag = 0xdc;
parm_list.function = fn;
parm_list.parlist_length = sizeof(parm_list);
parm_list.buffer_length = length;
parm_list.product_id_addr = (unsigned long) id;
parm_list.buffer_addr = virt_to_phys(buffer);
parm_list->diag = 0xdc;
parm_list->function = fn;
parm_list->parlist_length = sizeof(*parm_list);
parm_list->buffer_length = length;
parm_list->product_id_addr = (unsigned long) id;
parm_list->buffer_addr = virt_to_phys(buffer);
diag_stat_inc(DIAG_STAT_X0DC);
asm volatile(
" diag %1,%0,0xdc"
: "=d" (ry)
: "d" (&parm_list), "m" (parm_list), "m" (*id)
: "d" (parm_list), "m" (*parm_list), "m" (*id)
: "cc");
return ry;
}