unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Author SHA1 Message Date
Thiemo Seufer
aaa49075c6 Typo fix. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:14 +01:00
Thiemo Seufer
2fe25f67a5 More .set push/pop encapsulation, more eyefriendly code formatting. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:14 +01:00
Thiemo Seufer
f8670e66dc Fix MAP_BASE for 64bit ip22. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:13 +01:00
Ralf Baechle
f99d3023f3 Sprinkle a few more .set mipsX over xchg to make sure we dont' end up with 
64-bit instructions on 32-bit processors, they tend to be unhappy about
that kind of food ;-)

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:11 +01:00
Ralf Baechle
fabffc13ed Remove workaround for binutils 2.15 assembler bug; this version is not 
suitable to reliably build kernels anymore anyway and 2.16 has this
fixed.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:11 +01:00
Ralf Baechle
27c7c1657d Drop might_sleep() calls from get_user() & co. This should fix the issue 
in http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=200508171321.20094.Joshua.Wise%40sicortex.com and it's the right thing to do anyway because
it was inflating those functions way too much.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:10 +01:00
Ralf Baechle
340ee4b98c Virtual SMP support for the 34K. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:10 +01:00
Ralf Baechle
533330bf7f On CONFIG_64BIT_PHYS_ADDR, pfn always fits in 'unsigned long', but 
pfn<<PAGE_SHIFT sometimes extends beyond.  The pte is big enough to hold
'long long', but the shift in pfn_pte() needs to do its calculation with
enough bits to hold the result.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:09 +01:00
Ralf Baechle
0952e2905c Fix parenthesis in macros. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:08 +01:00
Ralf Baechle
8b200ce4a6 Define cpu_icache_snoops_remote_store. This is slight abuse of something 
which originally was meant for SMP cache managment but it can be argued
to apply on the 34K as well.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:07 +01:00
Ralf Baechle
3fd5646cac Add missing space. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:05 +01:00
Ralf Baechle
479a0e3e02 Support for CoreFPGA-3. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:32:02 +01:00
Ralf Baechle
23fbee9dd5 Support for Toshiba's RBHMA4500 eval board for the TX4938. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:57 +01:00
Pete Popov
bdf21b18b4 Philips PNX8550 support: MIPS32-like core with 2 Trimedias on it. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:54 +01:00
Ralf Baechle
e01402b115 More AP / SP bits for the 34K, the Malta bits and things. Still wants 
a little polishing.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:53 +01:00
Ralf Baechle
86071b637d Cleanups. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:53 +01:00
Ralf Baechle
7e35952baa Move Origin crapola into a machine-specific header file. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:52 +01:00
Ralf Baechle
8f40611d2b Detect the MIPS R2 vectored interrupt, external interrupt controller 
options and the precense of the MT ASE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:51 +01:00
Ralf Baechle
699dbc90e8 Macros to access the register of processors using the new MIPS 
Multithreading ASE, also know as MT ASE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/include/asm-mips/mipsmtregs.h b/include/asm-mips/mipsmtregs.h
new file mode 100644
 2005-10-29 19:31:51 +01:00
Pete Popov
f10fae0240 Fix the fixup_bigphys_addr compile problem. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:50 +01:00
Pete Popov
10f6567e63 Removed __ilog2 since it's no longer needed and conflicts with the 
generic one.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:49 +01:00
Ralf Baechle
7a0fc58cd9 A few more macros to access MIPS R2 architecture registers. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:49 +01:00
Ralf Baechle
97fb5de194 Add EF_MIPS_ARCH_32R2 and EF_MIPS_ARCH_64R2 for tagging of R2 binaries. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:47 +01:00
Ralf Baechle
f039b5d366 Add a few more SHN_MIPS_* symbols from glibc. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:47 +01:00
Ralf Baechle
7db36c858c Add inotify syscalls for MIPS. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:47 +01:00
Ralf Baechle
cc61c1fede MIPS R2 instruction hazard handling. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:46 +01:00
Ralf Baechle
bbc7f22f6d Detect the 34K. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:45 +01:00
Ralf Baechle
ff88f8a3d2 Use ei / di MIPS32 R2 instructions if available. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:44 +01:00
Ralf Baechle
6590326505 Use clz / dclz on MIPS32 / MIPS64 processors. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:43 +01:00
Ralf Baechle
60080265a1 Define kmap_atomic_pfn() for MIPS. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:42 +01:00
Ralf Baechle
c0ec406c80 Fix endianess bugs. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:41 +01:00
Thiemo Seufer
04988d6fda Protect noat assembly with .set push/pop and make it somewhat readable. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Thiemo Seufer <ths@networkno.de>
 2005-10-29 19:31:40 +01:00
Thiemo Seufer
9556ac2fa1 Fix get_saved_sp for 64bit address space. Simplify set_save_sp. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Thiemo Seufer <ths@networkno.de>
 2005-10-29 19:31:39 +01:00
Thiemo Seufer
4552074577 IP30 Identification. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Thiemo Seufer <ths@networkno.de>
 2005-10-29 19:31:39 +01:00
Ralf Baechle
6e760c8dae Rename CONFIG_CPU_MIPS{32,64} to CONFIG_CPU_MIPS{32|64}_R1. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:37 +01:00
Maciej W. Rozycki
a5fc9c0bbe Use physical addresses at the interface level, letting drivers remap 
them as appropriate.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:35 +01:00
Maciej W. Rozycki
7d7ee22121 Prevent 64-bit constants from being cropped to 32 bits when used in C code. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:34 +01:00
Maciej W. Rozycki
c3455b0efc Inline ioremap() calls for constant addresses that map to KSEG1. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:34 +01:00
Ralf Baechle
7222424e2e More .set to keep 32-bit processors happy. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:33 +01:00
Maciej W. Rozycki
c4559f67b7 Always use ".set mips3" rather than select between "mips2" or "mips3" 
for assembling ll/sc sequences to avoid problems with 64-bit
configurations.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:31 +01:00
Maciej W. Rozycki
64dac503e8 System-specific handling of bus errors for DECstation variations 
supporting parity errors only for memory (Pmax/3min/Maxine).
Fixes for resources decoded by the KN04/KN05 MB ASIC.  Additional
clean-ups for the ECC handler.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:30 +01:00
Ralf Baechle
e20368d5df Get the thing to compile again ... 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:28 +01:00
Maciej W. Rozycki
c6ad7b7d3c Use macros for the RM7k cp0.config bits instead of magic numbers. 
Minor clean-ups.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:28 +01:00
Maciej W. Rozycki
260c96738c Mark __die() "noreturn" for real. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:26 +01:00
Maciej W. Rozycki
a76f9fe122 GCC 4.0.0 broke `attribute(("alias"))' -- resort to an assembly variant. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:24 +01:00
Maciej W. Rozycki
3bd4c902da Deal with the bloody KSEG vs CKSEG horror... 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:23 +01:00
Ralf Baechle
02416dcf5a Redo RM9000 workaround which along with other DSP ASE changes was 
causing some headache for debuggers knowing about signal frames.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:23 +01:00
Maciej W. Rozycki
aac8aa7717 Enable a suitable ISA for the assembler around ll/sc so that code 
builds even for processors that don't support the instructions.
Plus minor formatting fixes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:22 +01:00
Ralf Baechle
478489dd2c Remove dead code which was causing warnings. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:19 +01:00
Ralf Baechle
ac130ac494 Fix build with CONFIG_PRINTK disabled. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:18 +01:00