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nexedi
linux
Commits
e543b3a6
Commit
e543b3a6
authored
Oct 19, 2018
by
Helge Deller
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parisc: Retrieve and display the PDC PAT capabilities
Signed-off-by:
Helge Deller
<
deller@gmx.de
>
parent
4c5fe5db
Changes
2
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+11
-0
arch/parisc/include/asm/pdc.h
arch/parisc/include/asm/pdc.h
+1
-0
arch/parisc/kernel/inventory.c
arch/parisc/kernel/inventory.c
+10
-0
No files found.
arch/parisc/include/asm/pdc.h
View file @
e543b3a6
...
...
@@ -11,6 +11,7 @@ extern int parisc_narrow_firmware;
extern
int
pdc_type
;
extern
unsigned
long
parisc_cell_num
;
/* cell number the CPU runs on (PAT) */
extern
unsigned
long
parisc_cell_loc
;
/* cell location of CPU (PAT) */
extern
unsigned
long
parisc_pat_pdc_cap
;
/* PDC capabilities (PAT) */
/* Values for pdc_type */
#define PDC_TYPE_ILLEGAL -1
...
...
arch/parisc/kernel/inventory.c
View file @
e543b3a6
...
...
@@ -43,6 +43,7 @@ int pdc_type __read_mostly = PDC_TYPE_ILLEGAL;
/* cell number and location (PAT firmware only) */
unsigned
long
parisc_cell_num
__read_mostly
;
unsigned
long
parisc_cell_loc
__read_mostly
;
unsigned
long
parisc_pat_pdc_cap
__read_mostly
;
void
__init
setup_pdc
(
void
)
...
...
@@ -81,12 +82,21 @@ void __init setup_pdc(void)
#ifdef CONFIG_64BIT
status
=
pdc_pat_cell_get_number
(
&
cell_info
);
if
(
status
==
PDC_OK
)
{
unsigned
long
legacy_rev
,
pat_rev
;
pdc_type
=
PDC_TYPE_PAT
;
pr_cont
(
"64 bit PAT.
\n
"
);
parisc_cell_num
=
cell_info
.
cell_num
;
parisc_cell_loc
=
cell_info
.
cell_loc
;
pr_info
(
"PAT: Running on cell %lu and location %lu.
\n
"
,
parisc_cell_num
,
parisc_cell_loc
);
status
=
pdc_pat_pd_get_pdc_revisions
(
&
legacy_rev
,
&
pat_rev
,
&
parisc_pat_pdc_cap
);
pr_info
(
"PAT: legacy revision 0x%lx, pat_rev 0x%lx, pdc_cap 0x%lx, S-PTLB %d, HPMC_RENDEZ %d.
\n
"
,
legacy_rev
,
pat_rev
,
parisc_pat_pdc_cap
,
parisc_pat_pdc_cap
&
PDC_PAT_CAPABILITY_BIT_SIMULTANEOUS_PTLB
?
1
:
0
,
parisc_pat_pdc_cap
&
PDC_PAT_CAPABILITY_BIT_PDC_HPMC_RENDEZ
?
1
:
0
);
return
;
}
#endif
...
...
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