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Kirill Smelkov
linux
Commits
f5213b2c
Commit
f5213b2c
authored
Aug 20, 2017
by
Helge Deller
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parisc: Make existing core files reuseable for bootloader
Signed-off-by:
Helge Deller
<
deller@gmx.de
>
parent
2f3c7b81
Changes
4
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4 changed files
with
24 additions
and
1 deletion
+24
-1
arch/parisc/include/asm/page.h
arch/parisc/include/asm/page.h
+4
-0
arch/parisc/include/asm/pdc.h
arch/parisc/include/asm/pdc.h
+2
-0
arch/parisc/kernel/firmware.c
arch/parisc/kernel/firmware.c
+14
-1
arch/parisc/kernel/real2.S
arch/parisc/kernel/real2.S
+4
-0
No files found.
arch/parisc/include/asm/page.h
View file @
f5213b2c
...
...
@@ -116,11 +116,15 @@ extern int npmem_ranges;
/* This governs the relationship between virtual and physical addresses.
* If you alter it, make sure to take care of our various fixed mapping
* segments in fixmap.h */
#if defined(BOOTLOADER)
#define __PAGE_OFFSET (0)
/* bootloader uses physical addresses */
#else
#ifdef CONFIG_64BIT
#define __PAGE_OFFSET (0x40000000)
/* 1GB */
#else
#define __PAGE_OFFSET (0x10000000)
/* 256MB */
#endif
#endif
/* BOOTLOADER */
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
...
...
arch/parisc/include/asm/pdc.h
View file @
f5213b2c
...
...
@@ -5,6 +5,8 @@
#if !defined(__ASSEMBLY__)
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) */
...
...
arch/parisc/kernel/firmware.c
View file @
f5213b2c
...
...
@@ -69,7 +69,15 @@
#include <asm/pdcpat.h>
#include <asm/processor.h>
/* for boot_cpu_data */
#if defined(BOOTLOADER)
# undef spin_lock_irqsave
# define spin_lock_irqsave(a, b) { b = 1; }
# undef spin_unlock_irqrestore
# define spin_unlock_irqrestore(a, b)
#else
static
DEFINE_SPINLOCK
(
pdc_lock
);
#endif
extern
unsigned
long
pdc_result
[
NUM_PDC_RESULT
];
extern
unsigned
long
pdc_result2
[
NUM_PDC_RESULT
];
...
...
@@ -186,6 +194,8 @@ void set_firmware_width(void)
}
#endif
/*CONFIG_64BIT*/
#if !defined(BOOTLOADER)
/**
* pdc_emergency_unlock - Unlock the linux pdc lock
*
...
...
@@ -1149,6 +1159,8 @@ void pdc_io_reset_devices(void)
spin_unlock_irqrestore
(
&
pdc_lock
,
flags
);
}
#endif
/* defined(BOOTLOADER) */
/* locked by pdc_console_lock */
static
int
__attribute__
((
aligned
(
8
)))
iodc_retbuf
[
32
];
static
char
__attribute__
((
aligned
(
64
)))
iodc_dbuf
[
4096
];
...
...
@@ -1193,6 +1205,7 @@ int pdc_iodc_print(const unsigned char *str, unsigned count)
return
i
;
}
#if !defined(BOOTLOADER)
/**
* pdc_iodc_getc - Read a character (non-blocking) from the PDC console.
*
...
...
@@ -1555,6 +1568,7 @@ int pdc_pat_mem_get_dimm_phys_location(
return
retval
;
}
#endif
/* CONFIG_64BIT */
#endif
/* defined(BOOTLOADER) */
/***************** 32-bit real-mode calls ***********/
...
...
@@ -1664,4 +1678,3 @@ long real64_call(unsigned long fn, ...)
}
#endif
/* CONFIG_64BIT */
arch/parisc/kernel/real2.S
View file @
f5213b2c
...
...
@@ -162,6 +162,7 @@ ENDPROC_CFI(restore_control_regs)
.
text
.
align
128
ENTRY_CFI
(
rfi_virt2real
)
#if !defined(BOOTLOADER)
/
*
switch
to
real
mode
...
*/
rsm
PSW_SM_I
,%
r0
load32
PA
(
rfi_v2r_1
),
%
r1
...
...
@@ -191,6 +192,7 @@ ENTRY_CFI(rfi_virt2real)
nop
rfi_v2r_1
:
tophys_r1
%
r2
#endif /* defined(BOOTLOADER) */
bv
0
(%
r2
)
nop
ENDPROC_CFI
(
rfi_virt2real
)
...
...
@@ -198,6 +200,7 @@ ENDPROC_CFI(rfi_virt2real)
.
text
.
align
128
ENTRY_CFI
(
rfi_real2virt
)
#if !defined(BOOTLOADER)
rsm
PSW_SM_I
,%
r0
load32
(
rfi_r2v_1
),
%
r1
nop
...
...
@@ -226,6 +229,7 @@ ENTRY_CFI(rfi_real2virt)
nop
rfi_r2v_1
:
tovirt_r1
%
r2
#endif /* defined(BOOTLOADER) */
bv
0
(%
r2
)
nop
ENDPROC_CFI
(
rfi_real2virt
)
...
...
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