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2013-11-18tcg-ia64: Simplify brcondRichard Henderson1-34/+10
There was a misconception that a stop bit is required between a compare and the branch that uses the predicate set by the compare. This lead to the usage of an extra bundle in which to perform the compare. The extra bundle left room for constants to be loaded for use with the compare insn. If we pack the compare and the branch together in the same bundle, then there's no longer any room for non-zero constants. At which point we can eliminate half the function by not handling them. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-11-18tcg-ia64: Handle constant callsRichard Henderson1-3/+35
Using only indirect calls results in 3 bundles (one to load the descriptor address), and 4 stop bits. By looking through the descriptor to the constants, we can perform the call with 2 bundles and only 1 stop bit. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-11-18tcg-ia64: Use shortcuts for nop insnsRichard Henderson1-124/+127
There's no need to go through the full opcode-to-insn function call to generate nops. This makes the source a bit more readable. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-11-18tcg-ia64: Use TCGMemOp within qemu_ldst routinesRichard Henderson1-82/+91
Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-10-10tcg: Add qemu_ld_st_i32/64Richard Henderson1-0/+2
Step two in the transition, adding the new ldst opcodes. Keep the old opcodes around until all backends support the new opcodes. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-10-10tcg: Add tcg-be-null.hRichard Henderson1-0/+2
This is a no-op backend data implementation, for those targets that are not currently using the load/store optimization path. This is prepatory to always requiring these functions in all backends. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02exec: Split softmmu_defs.hRichard Henderson1-3/+0
The _cmmu helpers can be moved to exec-all.h. The helpers that are used from TCG will shortly need access to tcg_target_long so move their declarations into tcg.h. This requires minor include adjustments to all TCG backends. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change tcg_out_ld/st offset to intptr_tRichard Henderson1-2/+2
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change relocation offsets to intptr_tRichard Henderson1-7/+7
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Change flush_icache_range arguments to uintptr_tRichard Henderson1-2/+1
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02tcg: Add muluh and mulsh opcodesRichard Henderson1-0/+4
Use them in places where mulu2 and muls2 are used. Optimize mulx2 with dead low part to mulxh. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-07-09tcg: Split rem requirement from div requirementRichard Henderson1-0/+2
There are several hosts with only a "div" insn. Remainder is computed manually from the quotient and inputs. We can do this generically. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-02-23tcg: Add signed multiword multiplication operationsRichard Henderson1-0/+2
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-23tcg: Add 64-bit multiword arithmetic operationsRichard Henderson1-0/+3
Matching the 32-bit multiword arithmetic that we already have. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-23tcg: Make 32-bit multiword operations optional for 64-bit hostsRichard Henderson1-0/+3
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-19exec: move include files to include/exec/Paolo Bonzini1-1/+1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19janitor: add guards to headersPaolo Bonzini1-0/+3
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-10-19Merge branch 'linux-user-for-upstream' of ↵Aurelien Jarno1-3/+0
git://git.linaro.org/people/rikuvoipio/qemu * 'linux-user-for-upstream' of git://git.linaro.org/people/rikuvoipio/qemu: linux-user: register align p{read, write}64 linux-user: ppc: mark as long long aligned tcg: Remove TCG_TARGET_HAS_GUEST_BASE define configure: Remove unnecessary host_guest_base code linux-user: If loading fails, print error as string, not number linux-user: Fix siginfo handling alpha-linux-user: Fix sigaltstack structure definition linux-user: Implement gethostname linux-user: Perform more checks on iovec lists linux-user: fix multi-threaded /proc/self/maps linux-user: fix statfs
2012-10-17tcg-ia64: Implement depositRichard Henderson2-2/+58
Note that in the general reg=reg,reg case we're restricted to 16-bit insertions. This makes it easy to allow "any" constant as input, as post-truncation it will fit into the constant load insn for which we have room in the bundle. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-17tcg/ia64: slightly optimize TLB access codeAurelien Jarno1-5/+17
It is possible to slightly optimize the TLB access code, by replacing the movi + and instructions by a deposit instruction. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-17tcg/ia64: remove suboptimal register shifting in qemu_ld/st opsAurelien Jarno1-39/+37
Remove suboptimal register shifting in qemu_ld/st ops, introduced at the CONFIG_TCG_PASS_AREG0 time. As mem_idx is now loaded in register R58/R59 for the slow path, we have to make sure to do it last, to not add additional register constraints. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-17tcg/ia64: implement movcond_i32/64Aurelien Jarno2-2/+40
Implement movcond_i32/64 on ia64 hosts. It is not possible to have immediate compare arguments without adding a new bundle, but it is possible to have 22-bit immediate value arguments. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-17tcg/ia64: use stack for TCG tempsBlue Swirl1-3/+4
Use stack instead of temp_buf array in CPUState for TCG temps. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-12tcg: Remove TCG_TARGET_HAS_GUEST_BASE definePeter Maydell1-3/+0
GUEST_BASE support is now supported by all TCG backends, and is now mandatory. Drop the now-pointless TCG_TARGET_HAS_GUEST_BASE define (set by every backend) and the error if it is unset. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-10-06tcg: remove obsolete jmp opAurelien Jarno1-4/+0
The TCG jmp operation doesn't really make sense in the QEMU context, it is unused, it is not implemented by some targets, and it is wrongly implemented by some others. This patch simply removes it. Reviewed-by: Richard Henderson <rth@twiddle.net> Acked-by: Blue Swirl <blauwirbel@gmail.com> Acked-by: Stefan Weil<sw@weilnetz.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-22tcg: Remove tcg_target_get_call_iarg_regs_countStefan Weil1-6/+0
The TCG targets no longer need individual implementations. Since commit 6a18ae2d2947532d5c26439548afa0481c4529f9, 'flags' is no longer used in tcg_target_get_call_iarg_regs_count. The remaining tcg_target_get_call_iarg_regs_count is trivial and only called once. Therefore the patch eliminates it completely. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-21tcg: Introduce movcondRichard Henderson1-0/+2
Implemented with setcond if the target does not provide the optional opcode. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15Remove unused CONFIG_TCG_PASS_AREG0 and dead codeBlue Swirl2-35/+0
Now that CONFIG_TCG_PASS_AREG0 is enabled for all targets, remove dead code and support for !CONFIG_TCG_PASS_AREG0 case. Remove dyngen-exec.h and all references to it. Although included by hw/spapr_hcall.c, it does not seem to use it. Remove unused HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-08-26tcg/ia64: fix and optimize ld/st slow pathAurelien Jarno1-15/+23
Store slow path has been broken in e141ab52d: - the arguments are shifted before the last one (mem_index) is written. - the shift is done for both slow and fast paths. Fix that. Also optimize a bit by bundling the move together. This still can be optimized, but it's better to wait for a decision to be taken on the arguments order. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-08-26tcg/ia64: fix prologue/epilogueAurelien Jarno1-10/+10
Prologue and epilogue code has been broken in cea5f9a28. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-03-18softmmu templates: optionally pass CPUState to memory access functionsBlue Swirl1-0/+46
Optionally, make memory access helpers take a parameter for CPUState instead of relying on global env. On most targets, perform simple moves to reorder registers. On i386, switch from regparm(3) calling convention to standard stack-based version. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-03-14Rename CPUState -> CPUArchStateAndreas Färber1-5/+5
Scripted conversion: for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do sed -i "s/CPUState/CPUArchState/g" $file done All occurrences of CPUArchState are expected to be replaced by QOM CPUState, once all targets are QOM'ified and common fields have been extracted. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-03w64: Change data type of parameters for flush_icache_rangeStefan Weil1-1/+2
The TCG targets i386 and tci needed a change of the function prototype for w64. This change is currently not needed for the other TCG targets, but it can be applied to avoid code differences. Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Andrzej Zaborowski <balrogg@gmail.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-11-14tcg: Use TCGReg for standard tcg-target entry points.Richard Henderson1-6/+6
Including tcg_out_ld, tcg_out_st, tcg_out_mov, tcg_out_movi. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-11-14tcg: Standardize on TCGReg as the enum for hard registersRichard Henderson1-2/+2
Most targets did not name the enum; tci used TCGRegister. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-08tcg/ia64: Remove unused tcg_out_addi()Peter Maydell1-19/+0
Remove the unused function tcg_out_addi() from the ia64 TCG backend; this brings it into line with other backends. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg: Don't declare TCG_TARGET_REG_BITS in tcg-target.hStefan Weil1-2/+0
It is now declared for all tcg targets in tcg.h, so the tcg target specific declarations are redundant. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-17tcg/ia64: Only one call output register needed for 64 bit hostsStefan Weil1-3/+2
The second register is never used for ia64 hosts. Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-21tcg-ia64: Fix typos in AREG0 setup in prologue.Richard Henderson1-2/+2
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-21tcg: Always define all of the TCGOpcode enum members.Richard Henderson1-31/+35
By always defining these symbols, we can eliminate a lot of ifdefs. To allow this to be checked reliably, the semantics of the TCG_TARGET_HAS_* macros must be changed from def/undef to true/false. This allows even more ifdefs to be removed, converting them into C if statements. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Delegate setup of TCG temporaries to targetsBlue Swirl1-0/+2
Delegate TCG temp_buf setup to targets, so that they can use a stack frame later instead. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26cpu-exec.c: avoid AREG0 useBlue Swirl1-2/+3
Make functions take a parameter for CPUState instead of relying on global env. Pass CPUState pointer to TCG prologue, which moves it to AREG0. Thanks to Peter Maydell and Laurent Desnogues for the ARM prologue change. Revert the hacks to avoid AREG0 use on Sparc hosts. Move cpu_has_work() and cpu_pc_from_tb() from exec.h to cpu.h. Compile the file without HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-12tcg arm/mips/ia64: add a comment about retranslation and cachesAurelien Jarno1-0/+3
Add a comment about cache coherency and retranslation, so that people developping new targets based on existing ones are warned of the issue. Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-10tcg/ia64: remove an unnecessary stop bitAurelien Jarno1-1/+1
Spotted by Richard Henderson. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-01tcg-ia64: Fix warning in qemu_ld.Richard Henderson1-2/+1
The usermode version of qemu_ld doesn't used mem_index, leading to set-but-not-used warnings. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
2010-12-01tcg-ia64: Fix address compilation in qemu_st.Richard Henderson1-1/+1
A typo in the usermode address calculation path; R3 used where R2 needed. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
2010-12-01tcg-ia64: Fix tlb read error for 32-bit targets.Richard Henderson1-1/+3
Use ld4 not ld8 for reading the tlb of 32-bit targets. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
2010-12-01tcg-ia64: Implement qemu_ld32.Richard Henderson1-0/+1
The port was not properly merged following 86feb1c860dc38e9c89e787c5210e8191800385e Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
2010-12-01tcg-ia64: Provide default GUEST_BASE.Richard Henderson1-0/+3
Fix compilation error when GUEST_BASE is not defined. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
2010-06-09tcg: Make some tcg-target.c routines static.Richard Henderson1-2/+2
Both tcg_target_init and tcg_target_qemu_prologue are unused outside of tcg.c. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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