Commit Graph

78 Commits

Author SHA1 Message Date
Stefan Weil
618ba8e6a1 Remove unused function parameter from cpu_restore_state
The previous patch removed the need for parameter puc.
Is is now unused, so remove it.

Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
2011-04-20 10:37:03 +02:00
Stefan Weil
e87b7cb0f0 Remove unused function parameters from gen_pc_load and rename the function
Function gen_pc_load was introduced in commit
d2856f1ad4.
The only reason for parameter searched_pc was
a debug statement in target-i386/translate.c.

Parameter puc was needed by target-sparc until
commit d7da2a1040.

Remove searched_pc from the debug statement and remove both
parameters from the parameter list of gen_pc_load.

As the function name gen_pc_load was also misleading,
it is now called restore_state_to_opc. This new name
was suggested by Peter Maydell, thanks.

v2: Remove last parameter, too, and rename the function.

v3: Fix [] typo in target-arm/translate.c.
    Fix wrong SHA1 object name in commit message (copy+paste error).

Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
2011-04-20 10:33:59 +02:00
Aurelien Jarno
211315fb5e softfloat: rename float*_eq() into float*_eq_quiet()
float*_eq functions have a different semantics than other comparison
functions. Fix that by first renaming float*_quiet() into float*_eq_quiet().

Note that it is purely mechanical, and the behaviour should be unchanged.
That said it clearly highlight problems due to this different semantics,
they are fixed later in this patch series.

Cc: Alexander Graf <agraf@suse.de>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-17 20:32:14 +02:00
Edgar E. Iglesias
6d76d23e82 microblaze: Add partial decoding of stream insns
Based on a patch from: Alejandro Cabrera <aldaya@gmail.com>

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-04-12 00:48:33 +02:00
Edgar E. Iglesias
8545364198 microblaze: Add stream-insn related constants
Based on a patch from: Alejandro Cabrera <aldaya@gmail.com>

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-04-12 00:42:28 +02:00
Edgar E. Iglesias
3b584046aa microblaze: Add constant for exception-code mask
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-04-11 23:55:42 +02:00
Alejandro Cabrera
7458a432f0 microblaze: Correct MMU_ZONES mask
Signed-off-by: Alejandro Cabrera <aldaya@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-04-11 23:07:58 +02:00
Stefan Weil
4b4a72e556 Fix conversions from pointer to tcg_target_long
tcg_gen_exit_tb takes a parameter of type tcg_target_long,
so the type casts of pointer to long should be replaced by
type casts of pointer to tcg_target_long (suggested by Blue Swirl).

These changes are needed for build environments where
sizeof(long) != sizeof(void *), especially for w64.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-10 00:45:16 +02:00
Stefan Weil
4ff9786c67 Fix trivial "endianness bugs"
Replace endianess -> endianness.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-03 21:42:57 +02:00
Paolo Bonzini
eda48c344f inline cpu_halted into sole caller
All implementations are now the same, and there is only one caller,
so inline the function there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-03-13 14:44:21 +00:00
Michal Simek
c4374bb753 microblaze: Add PVR for writeback cache, endians
Specify PVR for writeback cache, endians and others.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-03-11 15:24:37 +01:00
Edgar E. Iglesias
6c5f738dae microblaze: Handle singlestepping over direct jmps
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-02-10 00:46:09 +01:00
Paolo Bonzini
c0c1dc9925 cris, microblaze: use cpu_has_work
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-02-08 20:37:39 +01:00
Edgar E. Iglesias
5d0bb8239d microblaze: cleanup helper_addkc
Remove unused addition and rename to helper_carry.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-23 03:52:20 +01:00
Edgar E. Iglesias
e0a42ebc08 microblaze: Improve subkc
Move code from the helper into the translator. The remaining
helper parts can reuse helper_addkc, making it possible to
remove helper_subkc entirely.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 12:39:16 +01:00
Edgar E. Iglesias
7e9e433008 microblaze: Fix 3rd addkc arg when rd is r0
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 12:35:48 +01:00
Edgar E. Iglesias
40cbf5b709 microblaze: Improve addkc
* Optimize handling when carry is not updated.
* Optimize handling for adds with nop semantics.
* Move code from helper_addkc to the translator making
  helper_addkc PURE and CONST.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 12:02:53 +01:00
Edgar E. Iglesias
2accfb5fa6 microblaze: Remove debug leftovers.
No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 12:00:12 +01:00
Edgar E. Iglesias
ee8b246f82 microblaze: Reorganize for future patches
No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-22 11:57:19 +01:00
Edgar E. Iglesias
9f8beb6636 microblaze: Add support for load/store reversed
Load/store reversed (lwr/swr) are insns that endian translate
the sub-word part of the address and byteswap the data lanes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-01-19 23:18:00 +01:00
Edgar E. Iglesias
9ef5535763 microblaze: Tweak comment, fast cases -> common cases
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-01-19 22:48:07 +01:00
Edgar E. Iglesias
844bab604b microblaze: Improve unconditional direct branching
Avoid emitting conditional tcg operations for uncoditional
direct branches.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-01-14 12:30:26 +01:00
Edgar E. Iglesias
23979dc541 microblaze: Use more TB chaining
For some workloads with tight loops this ~doubles the emulation
speed.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2011-01-05 02:23:09 +01:00
Peter Maydell
185698715d softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()
The softfloat functions float*_is_nan() were badly misnamed,
because they return true only for quiet NaNs, not for all NaNs.
Rename them to float*_is_quiet_nan() to more accurately reflect
what they do.

This change was produced by:
 perl -p -i -e 's/_is_nan/_is_quiet_nan/g' $(git grep -l is_nan)
(with the results manually checked.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-02 11:15:25 +01:00
Stefan Weil
9a78eead0c target-xxx: Use fprintf_function (format checking)
fprintf_function uses format checking with GCC_FMT_ATTR.

Format errors were fixed in
* target-i386/helper.c
* target-mips/translate.c
* target-ppc/translate.c

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-30 08:01:59 +00:00
Stefan Weil
e6aa0f11ed target-microblaze: Use %td for ptrdiff_t arguments in debug message
According to ISO/IEC 9899:1999 7.19.6.1,
the correct length modifier for ptrdiff_t is 't', not 'z'.

Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-10-02 13:12:21 +02:00
Edgar E. Iglesias
ef9d48da59 microblaze: Add support for fcmp.un
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-09-09 22:05:48 +02:00
Edgar E. Iglesias
97694c57d7 microblaze: Add basic FPU emulation
Missing:
* fcmp.un insn
* Denormalized exceptions
* Exception model is not accurate

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-09-09 10:20:17 +02:00
Edgar E. Iglesias
bdc0bf29c6 microblaze: Add definitions for FSR reg fields
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-09-09 09:58:35 +02:00
Edgar E. Iglesias
a5efa6441c microblaze: Remove unused members from the disas context
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-07-25 00:09:41 +02:00
Edgar E. Iglesias
4b5ef0b50d microblaze: Speed up base + index addressing mode
Speed up reg + reg addressing mode when any of the regs is r0.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-07-24 23:25:49 +02:00
Edgar E. Iglesias
b2565c694a microblaze: Use setcond for conditional branches
Use setcond for evaluating the condition for branches.
In the future, we could do better for branches without
delay slots.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-07-24 21:51:51 +02:00
Edgar E. Iglesias
61204ce8ec microblaze: Improve branch with small immediates
Slight improvements of conditional branches with small
immediate offsets.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-07-24 21:24:59 +02:00
Paolo Bonzini
a88790a14f remove exec-all.h inclusion from cpu.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03 09:48:24 +03:00
Paolo Bonzini
10eb0cc03c move cpu_pc_from_tb to target-*/exec.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03 09:48:12 +03:00
Paolo Bonzini
83dae09588 remove unused stuff from */exec.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03 06:47:13 +00:00
Edgar E. Iglesias
fd1dc85837 microblaze: Make MSR_UM and MSR_VM part of the tb flags
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-06-07 11:54:27 +02:00
Edgar E. Iglesias
0d5d469938 microblaze: Update elf machine nums.
189 was allocated in upstream binutils.

0xbaab was the old temporary value. Still used by some tools and the
linux kernel.

I've seen 115 in older gdb versions, but lets ignore that one.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-05-19 15:24:17 +02:00
Blue Swirl
183aa45407 microblaze: remove dead assignments, spotted by clang analyzer
Value stored is never read.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-25 20:00:33 +00:00
Paul Brook
d4c430a80f Large page TLB flush
QEMU uses a fixed page size for the CPU TLB.  If the guest uses large
pages then we effectively split these into multiple smaller pages, and
populate the corresponding TLB entries on demand.

When the guest invalidates the TLB by virtual address we must invalidate
all entries covered by the large page.  However the address used to
invalidate the entry may not be present in the QEMU TLB, so we do not
know which regions to clear.

Implementing a full vaiable size TLB is hard and slow, so just keep a
simple address/mask pair to record which addresses may have been mapped by
large pages.  If the guest invalidates this region then flush the
whole TLB.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-17 02:44:41 +00:00
Paul Brook
3c7b48b74c Target specific usermode cleanup
Disable various target specific code that is only relevant to system emulation.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 18:44:24 +00:00
Paul Brook
4fcc562bff Remove cpu_get_phys_page_debug from userspace emulation
cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12 18:34:25 +00:00
Richard Henderson
5270589032 Move TARGET_PHYS_ADDR_SPACE_BITS to target-*/cpu.h.
Removes a set of ifdefs from exec.c.

Introduce TARGET_VIRT_ADDR_SPACE_BITS for all targets other
than Alpha.  This will be used for page_find_alloc, which is
supposed to be using virtual addresses in the first place.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2010-03-12 16:28:24 +00:00
Edgar E. Iglesias
ff21f70afd microblaze: Improve brk emulation.
brk insns while in user mode raise priv insn exceptions.
This commit makes gdbserver work on linux guests.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-02-20 14:04:01 +01:00
Edgar E. Iglesias
e1aa325409 microblaze: Dont segfault when singlestepping first insn.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
2010-02-20 14:03:14 +01:00
Paolo Bonzini
49a945a3c0 kill regs_to_env and env_to_regs
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-19 16:31:02 -06:00
Michal Simek
4c24aa0a69 microblaze: Print content of EAR register
I need to see EAR register in output because I need to parse irqsoff problem.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-16 12:54:26 +01:00
Edgar E. Iglesias
17c52a43b4 microblaze: Update debug logs.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-16 12:52:56 +01:00
Edgar E. Iglesias
f062a3c793 microblaze: Handle wdc flush and clear.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-13 09:10:08 +01:00
Paul Hartke
9d2dcce9a3 microblaze: Correct branch to registers.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-12-13 03:22:24 +01:00