Commit Graph

67718 Commits

Author SHA1 Message Date
Sam Ravnborg
642ea3ed9c sparc32: drop btfixup in pgalloc_32.h
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-13 12:51:52 -07:00
David S. Miller
5471fa6265 sparc32: Pass -mcpu=v7 explicitly to gcc.
We should be agnostic to what gcc happens to be generating by default.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 15:16:45 -07:00
David S. Miller
301d5bbb52 sparc32: Un-btfixup more PTE constants and PTE ops.
pte_{filei,wrprotecti,mkcleani,mkoldi}
pte_{mkwrite,mkdirty,mkyoung}

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:54:58 -07:00
David S. Miller
f755f77a3a sparc32: Un-btfixup pte_{write,dirty,young}i
And we can certainly get rid of the const function attributes, there
is no way that's needed any longer and no other arch uses this kind
of annotation here.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:48:10 -07:00
Sam Ravnborg
c78896f00d sparc32: drop unused code in process_32
It is commented out using #ifdef 0 / #endif,
and has been so for a long time.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:44:22 -07:00
David S. Miller
62875cff73 sparc32: Un-btfixup set_pte, pte_present, mk_pte{_phys,_io}().
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:39:23 -07:00
Sam Ravnborg
a3c5c6637b sparc32: drop loadmmu
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:30:49 -07:00
David S. Miller
f167edaee0 sparc32: Un-btfixup pmd_{bad,present}().
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:30:28 -07:00
David S. Miller
7d9fa4aa3d sparc32: Un-btfixup pgd_{none,bad,present}.
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 13:13:16 -07:00
David S. Miller
6439d1c693 sparc32: Un-btfixup PAGE_{NONE,COPY,READONLY,SHARED,KERNEL}.
That lets us also get rid of the run-time initialization of
protection_map[] and all the ugly module workarounds for
PAGE_KERNEL and PAGE_SHARED to deal with the fact that we
can't do btfixups for modular code.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 12:52:47 -07:00
David S. Miller
3d8273675d sparc32: Un-btfixup pmd_page and pte_pfn.
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 12:33:08 -07:00
David S. Miller
a46d6056f6 sparc32: Un-btfixup {pte,pmd,pgd}_clear().
Also we can remove BTFIXUPCALL_SWAPO0G0 as that is no longer
used.

This was rather amusing, we were setting the btfixup vectors
based upon cpu type but all to the same exact generic srmmu
routines.

Furthermore, we were inconsistently marking the fixup as
either BTFIXUPCALL_SWAPO0G0 or BTFIXUPCALL_NORM.

What a mess, glad we could untangle this stuff.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 12:26:47 -07:00
David S. Miller
3d386c0ef6 sparc32: Un-btfixup PGDIR_{SHIFT,SIZE,MASK} {USER_,}PTRS_PER_{PGD,PMD}
Only one set of values exist, the SRMMU ones.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 12:02:02 -07:00
Sam Ravnborg
6066fc3dc4 sparc32: drop unused type/extern
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:04 -07:00
Sam Ravnborg
3774348770 sparc32: drop btfixup for check_pgt_cache
It is a noop for srmmu - so use a define as sparc64 does.
And drop all sparc callers - no need to confuse our-self
be calling a noop function.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:04 -07:00
Sam Ravnborg
34d4accfe0 sparc32: drop btfixup for switch_mm
This revealed that the implementation of switch_mm
had a bogus extra argument.
No harm as said argument was never used - but confusing.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:03 -07:00
Sam Ravnborg
144e988dd2 sparc32: code cleanup in floppy glue
Small cleanup to improve readability.
Dropped one test for sparc_cpu_model -
we already know that only sun4m support floppy.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:02 -07:00
Sam Ravnborg
918f832290 sparc32: fix warning in floopy glue
Fix following warning:
arch/sparc/include/asm/floppy_32.h:342:5: warning: 'op' may be used uninitialized in this function

The warning are legitimite and we can end up using op uninitialized.
This fixes build with my gcc on UP.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:01 -07:00
Sam Ravnborg
d6ea55733d sparc32: simpler cputype check in head_32.S
We know this is not a sun4/sun4c - as we checked earlier.
So no need to repeat the check.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:00 -07:00
Sam Ravnborg
eb06f47630 sparc32: drop extra getprop call during boot
It was present only to support the sun4, sun4c boxes which
do not have the "compatible" property in the root-node
of the device tree.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:32:00 -07:00
Sam Ravnborg
142cc039bd sparc32: drop prom version check in head_32.S
We already sorted out if we are a sun4/sun4c and halted.
So no need to check the prom version as we know this is
a v2 or v3 as sun4m, sun4d etc. does not use a v1 prom.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:31:59 -07:00
Sam Ravnborg
1b4cb70ec8 sparc32: remove sun4c specific variables from head_32.S
This gives us back 7 pages...

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 11:31:58 -07:00
David S. Miller
9b4c514ad2 sparc32: Add back early sun4/sun4c detection so we can warn properly.
We need to do the check before we try to remap the kernel using
SRMMU operations.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 01:02:11 -07:00
David S. Miller
ee906c9e0b sparc32: Trivial removal of sun4c references in comments.
I left some around, like the ones in the openprom headers, since
we need to think about which pieces of those datastructures and
code we can completely toss now.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 00:35:45 -07:00
David S. Miller
6e54e9503e sparc32: Remove sun4 and sun4c from enum sparc_cpu.
All the remaining references are trivially removed since we've
just eliminated the final reference to sparc_cpu_model from
assembler code in commit b7d96ce189
("sparc32: Remove sparc_cpu_model read from floppy interrupt handler.")

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 00:23:23 -07:00
David S. Miller
b7d96ce189 sparc32: Remove sparc_cpu_model read from floppy interrupt handler.
Since we no longer test the cpu model value, no need to load
it into a register any more.

It just gets overwritten in the next instruction anyways. :-)

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-12 00:13:32 -07:00
David S. Miller
fd2b79b7bf sparc32: Kill unused defines from asm/head_32.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:43:11 -07:00
David S. Miller
0301a6cbcc sparc32: Remove some more sun4c code from floppy glue.
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:39:48 -07:00
David S. Miller
4c84d26c9a sparc32: Remove sun4c tlb/vac insn patching from entry.S
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:35:36 -07:00
David S. Miller
db41cf2df6 sparc32: Remove ldXa and stXa defines, unused.
These were for sharing some MMU code between sun4 and sun4c.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:31:49 -07:00
David S. Miller
2a4b69c482 sparc32: Remove sun4{,c} control reg definitions from contregs.h.
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:29:17 -07:00
David S. Miller
c1e3cb54f2 sparc32: Remove sparc_lvl15_nmi().
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:27:04 -07:00
David S. Miller
96061a91a1 sparc32: Restore SMP build and rectify sun4m NMI when non-SMP.
The non-SMP sun4m NMI handler was still accessing SUN4C registers.

Fix that and share the sun4m NMI trap code between SMP and non-SMP
cases.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:23:05 -07:00
David S. Miller
716a5d73a7 sparc32: Kill asm/vac-ops.h
All sun4/sun4c stuff and unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:07:50 -07:00
David S. Miller
6b7679dd65 sparc32: Stop warning about sun4/sun4c in SMP Kconfig option.
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 21:01:47 -07:00
David S. Miller
288e58cd03 sparc32: Remove sun4c floppy assembler.
There were two blocks of code for the two ways to twiddle
the terminal count pin in the AUXIO register, one for
sun4c and one for sun4m.  Kill the former.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 20:59:57 -07:00
David S. Miller
59a0c3d91e sparc32: Put back SPARC_BRANCH.
It's needed for the floppy interrupt trap table patching.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 20:57:29 -07:00
David S. Miller
4419f11b45 sparc32: Kill SUN4C_LOCK_{VADDR,END} and associated comment.
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 20:51:51 -07:00
David S. Miller
58fa4dcbc4 sparc: Clear out unused asm/machines.h values.
Remove sun4 and sun4c machine ID values from asm/machines.h

Also kill NUM_SUN_MACHINES, use ARRAY_SIZE instead.

Kill asm/machines.h include and sun4c checks from asm/floppy_32.h

Remove asm/machines.h include from setup_32.c and time_32.c, unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 20:45:18 -07:00
David S. Miller
8695c37d06 sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC
Use those, instead of doing it all by hand.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 20:33:22 -07:00
David S. Miller
b55e81b9f8 sparc32: Remove inline strncmp "optimization" for constant counts.
Let the compiler do stuff like this.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:53:29 -07:00
Sam Ravnborg
afaedde7c9 sparc32: use inline versions of pgprot_noncached, pte_to_pgoff and pgoff_to_pte
We no longer have different versions of these so use a few simple
static inline functions.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:29:10 -07:00
Sam Ravnborg
e7b7e0c356 sparc32: drop btfixup for alloc_thread_info_node/free_thread_info
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:29:09 -07:00
Sam Ravnborg
323206a1d5 sparc32: drop sun4c bits from head_32.S
As we no longer support sun4c we can remove all the code to
support remapping the kernel in head_32.S.
We also try to tell the user that the machine is not support,
in case someone try to boot the kernel on a sun4c one day

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:29:00 -07:00
Sam Ravnborg
3c23a7665b sparc32: drop test for sun4c in signal_32
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:27:53 -07:00
Sam Ravnborg
ef136bc91e sparc32: drop sun4c user stack checking routine
With this we no longer do any run-time patchings of traps.
So drop the function + macro to support this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:27:52 -07:00
Sam Ravnborg
e098ff92f6 sparc32: drop sun4c stack checking routine
And drop run-time patching too.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:27:51 -07:00
Sam Ravnborg
054768a132 sparc32: drop sun4c window overflow stack checking routine
Also drop run-time patching for srmmu

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:27:50 -07:00
Sam Ravnborg
28de2f7339 sparc32: drop sun4c specific stack validation
This allows us to kill run-time patching for this function too

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:27:50 -07:00
Sam Ravnborg
1ee0e14407 sparc32: delete pgtsun4c.h
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-11 19:27:49 -07:00