bwlp/qemu.git/target/microblaze/helper.h, branch spice_video_codecsExperimental fork of QEMU with video encoding patcheshttps://git.openslx.org/bwlp/qemu.git/atom/target/microblaze/helper.h?h=spice_video_codecs2020-09-01T14:43:35+00:00target/microblaze: Add flags markup to some helpers2020-09-01T14:43:35+00:00Richard Henderson2020-08-25T14:40:14+00:00urn:sha1:e269b4bdf228f57f6671b7692c08f7304179a4c4
The mmu_read, mmu_write, get, and put helpers do not touch the
general registers, or any of the other variables managed by tcg.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Use cc->do_unaligned_access2020-09-01T14:43:35+00:00Richard Henderson2020-08-21T03:29:01+00:00urn:sha1:ab0c8d0f5b3377eba2c14116e199573583ea0089
This fixes the problem in which unaligned stores succeeded,
but then we raised the exception after modifying memory.
Store the ESS for the unaligned data access in the iflags
for the insn, so that it can be found during unwind.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Fix cpu unwind for stackprot2020-09-01T14:41:38+00:00Richard Henderson2020-08-25T14:45:34+00:00urn:sha1:3f203194550108a72e8ee55d1b8bcb2333222b71
Restore the correct PC when an exception must be raised.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Mark fpu helpers TCG_CALL_NO_WG2020-09-01T14:41:38+00:00Richard Henderson2020-08-24T15:57:36+00:00urn:sha1:3986c650a25e645a2b39795e5004d7e0e1c7b8b1
Now that FSR is no longer a tcg global temp, we can say that
the fpu helpers do not write to tcg temps. All temps are
read implicitly by the fpu exception path.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Unwind properly when raising divide-by-zero2020-09-01T14:41:38+00:00Richard Henderson2020-08-18T06:12:14+00:00urn:sha1:e98651d9ca475259a6721f6f1cff5da1ad4f0cc1
Restore the correct pc when raising divide-by-zero. Also, the
MSR[DZO] bit is sticky -- it is not cleared with a successful divide.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Implement cmp and cmpu inline2020-09-01T14:41:38+00:00Richard Henderson2020-08-25T14:31:29+00:00urn:sha1:58b48b637db61e28a5e6c1ec9fce42b9f79c7b36
These are simple enough operations; we do not need to
call an out-of-line helper.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Convert dec_sub to decodetree2020-09-01T14:41:38+00:00Richard Henderson2020-08-17T18:29:24+00:00urn:sha1:a2b0b90e7960c6dcf52be237149c1b9ff289d9a5
Use tcg_gen_add2_i32 for computing carry.
This removes the last use of helper_carry, so remove that.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Remove helper_debug and env->debug2020-09-01T14:41:38+00:00Richard Henderson2020-08-24T13:46:04+00:00urn:sha1:eb2022b7d0dcf5be089f9519ac096ebe60b46797
This is not used, and seems redundant with -d cpu.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target/microblaze: Mark raise_exception as noreturn2020-09-01T14:41:38+00:00Richard Henderson2020-08-25T14:35:19+00:00urn:sha1:41060b74bf4597b8260205bf1b6ed43c3b1696d7
This will allow tcg to remove any dead code that might
follow an exception.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target-microblaze: Add support for extended access to TLBLO2018-05-29T07:35:14+00:00Edgar E. Iglesias2018-04-16T19:25:01+00:00urn:sha1:f0f7e7f7b284f536389a3c5b67de681055325317
Add support for extended access to TLBLO's upper 32 bits.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>