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[POWERPC] clean up pseries hcall interfaces

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Our pseries hcall interfaces are out of control:

	plpar_hcall_norets
	plpar_hcall
	plpar_hcall_8arg_2ret
	plpar_hcall_4out
	plpar_hcall_7arg_7ret
	plpar_hcall_9arg_9ret

Create 3 interfaces to cover all cases:

	plpar_hcall_norets:	7 arguments no returns
	plpar_hcall:		6 arguments 4 returns
	plpar_hcall9:		9 arguments 9 returns

There are only 2 cases in the kernel that need plpar_hcall9, hopefully
we can keep it that way.

Pass in a buffer to stash return parameters so we avoid the &dummy1,
&dummy2 madness.

Signed-off-by: Anton Blanchard <anton@samba.org>
--
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard
2006-07-19 08:01:28 +10:00
committed by Paul Mackerras
parent 57cad8084e
commit b9377ffc3a
10 changed files with 186 additions and 315 deletions
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12
arch/powerpc/platforms/pseries/lpar.c
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@@ -48,13 +48,11 @@
#define DBG_LOW(fmt...) do { } while(0)
#endif
/* in pSeries_hvCall.S */
/* in hvCall.S */
EXPORT_SYMBOL(plpar_hcall);
EXPORT_SYMBOL(plpar_hcall_4out);
EXPORT_SYMBOL(plpar_hcall9);
EXPORT_SYMBOL(plpar_hcall_norets);
EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
EXPORT_SYMBOL(plpar_hcall_7arg_7ret);
EXPORT_SYMBOL(plpar_hcall_9arg_9ret);
extern void pSeries_find_serial_port(void);
@@ -277,7 +275,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
unsigned long flags;
unsigned long slot;
unsigned long hpte_v, hpte_r;
unsigned long dummy0, dummy1;
if (!(vflags & HPTE_V_BOLTED))
DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, "
@@ -302,8 +299,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
hpte_r &= ~_PAGE_COHERENT;
lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
hpte_r, &slot, &dummy0, &dummy1);
lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
if (unlikely(lpar_rc == H_PTEG_FULL)) {
if (!(vflags & HPTE_V_BOLTED))
DBG_LOW(" full\n");