Commit Graph

54 Commits

Author SHA1 Message Date
Richard Henderson 23850a74af tcg: Implement gvec support for rotate by scalar
No host backend support yet, but the interfaces for rotls
are in place.  Only implement left-rotate for now, as the
only known use of vector rotate by scalar is s390x, so any
right-rotate would be unused and untestable.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-02 08:42:37 -07:00
Richard Henderson 5d0ceda902 tcg: Implement gvec support for rotate by vector
No host backend support yet, but the interfaces for rotlv
and rotrv are in place.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Drop the generic expansion from rot to shift; we can do better
    for each backend, and then this code becomes unused.
2020-06-02 08:42:37 -07:00
Richard Henderson b0f7e7444c tcg: Implement gvec support for rotate by immediate
No host backend support yet, but the interfaces for rotli
are in place.  Canonicalize immediate rotate to the left,
based on a survey of architectures, but provide both left
and right shift interfaces to the translators.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-02 08:42:37 -07:00
Richard Henderson a9e434a5dc tcg/aarch64: Support vector bitwise select value
The instruction set has 3 insns that perform the same operation,
only varying in which operand must overlap the destination.  We
can represent the operation without overlap and choose based on
the operands seen.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00
Richard Henderson f75da2988e tcg: Add support for vector compare select
Perform a per-element conditional move.  This combination operation is
easier to implement on some host vector units than plain cmp+bitsel.
Omit the usual gvec interface, as this is intended to be used by
target-specific gvec expansion call-backs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00
Richard Henderson 38dc12947e tcg: Add support for vector bitwise select
This operation performs d = (b & a) | (c & ~a), and is present
on a majority of host vector units.  Include gvec expanders.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 15:09:43 -04:00
Richard Henderson a456394ae5 tcg/aarch64: Support vector absolute value
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13 22:52:08 +00:00
Richard Henderson bcefc90208 tcg: Add support for vector absolute value
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13 22:52:08 +00:00
Richard Henderson 79525dfd08 tcg/aarch64: Support vector variable shift opcodes
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-13 22:52:08 +00:00
Richard Henderson 464c2969d5 tcg/aarch64: Support INDEX_op_extract2_{i32,i64}
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-04-24 13:04:33 -07:00
Richard Henderson fce1296f13 tcg: Add INDEX_op_extract2_{i32,i64}
This will let backends implement the double-word shift operation.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-04-24 13:04:33 -07:00
Richard Henderson e77c89fb08 cputlb: Remove static tlb sizing
Now that all tcg backends support TCG_TARGET_IMPLEMENTS_DYN_TLB,
remove the define and the old code.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:04:35 -08:00
Richard Henderson f7bcd96669 tcg/aarch64: enable dynamic TLB sizing
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:04:10 -08:00
Emilio G. Cota 86e1eff8bc tcg: introduce dynamic TLB sizing
Disabled in all TCG backends for now.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20190116170114.26802-3-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:03:34 -08:00
Richard Henderson 93f332a503 tcg/aarch64: Implement vector minmax arithmetic
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:03:34 -08:00
Richard Henderson d32648d445 tcg/aarch64: Implement vector saturating arithmetic
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:03:34 -08:00
Richard Henderson dd0a0fcdd8 tcg: Add opcodes for vector minmax arithmetic
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:03:34 -08:00
Richard Henderson 8afaf05066 tcg: Add opcodes for vector saturated arithmetic
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-01-28 07:03:34 -08:00
Richard Henderson e1dcf3529d tcg: Add TCG_TARGET_HAS_MEMORY_BSWAP
For now, defined universally as true, since we previously required
backends to implement swapped memory operations.  Future patches
may now remove that support where it is onerous.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-12-17 06:04:44 +03:00
Richard Henderson 14e4c1e235 tcg/aarch64: Add vector operations
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-02-08 15:54:08 +00:00
Richard Henderson 55129955e9 tcg/aarch64: Use constant pool for movi
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-09-07 11:57:35 -07:00
Richard Henderson 659ef5cbb8 tcg: Rearrange ldst label tracking
Dispense with TCGBackendData, as it has never been used for more than
holding a single pointer.  Use a define in the cpu/tcg-target.h to
signal requirement for TCGLabelQemuLdst, so that we can drop the no-op
tcg-be-null.h stubs.  Rename tcg-be-ldst.h to tcg-ldst.inc.c.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-09-07 11:57:35 -07:00
Richard Henderson a858339336 tcg: Move USE_DIRECT_JUMP discriminator to tcg/cpu/tcg-target.h
Replace the USE_DIRECT_JUMP ifdef with a TCG_TARGET_HAS_direct_jump
boolean test.  Replace the tb_set_jmp_target1 ifdef with an unconditional
function tb_target_set_jmp_target.

While we're touching all backends, add a parameter for tb->tc_ptr;
we're going to need it shortly for some backends.

Move tb_set_jmp_target and tb_add_jump from exec-all.h to cpu-exec.c.

This opens the possibility for TCG_TARGET_HAS_direct_jump to be
a runtime decision -- based on host cpu capabilities, the size of
code_gen_buffer, or a future debugging switch.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-09-07 11:57:34 -07:00
Pranith Kumar 71650df7b0 tcg: Add tcg target default memory ordering
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20170829063313.10237-3-bobby.prani@gmail.com>
[rth: Dropped ia64 hunk]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-09-05 12:56:40 -07:00
Richard Henderson b19f0c2e7d tcg/aarch64: Implement goto_ptr
Measurements:

                      SPECint06 (test set), x86_64-linux-user. Host: APM 64-bit ARMv8 (Atlas/A57) @ 2.4 GHz

 1.45x +-+-------------------------------------------------------------------------------------------------------------+-+
       |                                      *****                                                                      |
       |      +++                             *   *                                                    +goto-ptr         |
  1.4x +-+...*****............................*...*....................................................................+-+
       |     *+++*                            *   *                            +++                                       |
 1.35x +-+...*...*............................*...*...........................*****....................................+-+
       |     *   *                            *   *                           *+++*                                      |
       |     *   *                            *   *                           *   *                                      |
  1.3x +-+...*...*............................*...*...........................*...*....................................+-+
       |     *   *                            *   *                           *   *                                      |
       |     *   *                            *   *                           *   *                    *****             |
 1.25x +-+...*...*...........*****............*...*...........................*...*............*****...*...*...........+-+
       |     *   *           *   *            *   *                           *   *            *+++*   *   *             |
  1.2x +-+...*...*...........*...*............*...*...........................*...*............*...*...*...*...........+-+
       |     *   *           *   *            *   *                           *   *            *   *   *   *             |
       |     *   *           *   *            *   *                           *   *            *   *   *   *   *****     |
 1.15x +-+...*...*...........*...*............*...*...........................*...*............*...*...*...*...*...*...+-+
       |     *   *           *   *            *   *                           *   *    +++     *   *   *   *   *   *     |
       |     *   *           *   *            *   *                           *   *   *****    *   *   *   *   *   *     |
  1.1x +-+...*...*...........*...*....*****...*...*...*****...................*...*...*...*....*...*...*...*...*...*...+-+
       |     *   *           *   *    *   *   *   *   *   *                   *   *   *   *    *   *   *   *   *   *     |
 1.05x +-+...*...*...........*...*....*...*...*...*...*...*...................*...*...*...*....*...*...*...*...*...*...+-+
       |     *   *   *****   *   *    *   *   *   *   *   *                   *   *   *   *    *   *   *   *   *   *     |
       |     *   *   *   *   *   *    *   *   *   *   *   *   *****   *****   *   *   *   *    *   *   *   *   *   *     |
    1x +-+---*****---*****---*****----*****---*****---*****---*****---*****---*****---*****----*****---*****---*****---+-+
          astar   bzip2     gcc    gobmk h264ref   hmmlibquantum     mcf omnetpperlbench    sjenxalancbmk   hmean
  png: http://imgur.com/en9HE8L

Tested-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-06-05 09:25:42 -07:00
Emilio G. Cota cedbcb0152 tcg: Introduce goto_ptr opcode and tcg_gen_lookup_and_goto_ptr
Instead of exporting goto_ptr directly to TCG frontends, export
tcg_gen_lookup_and_goto_ptr(), which calls goto_ptr with the pointer
returned by the lookup_tb_ptr() helper. This is the only use case
we have for goto_ptr and lookup_tb_ptr, so having this function is
very convenient. Furthermore, it trivially allows us to avoid calling
the lookup helper if goto_ptr is not implemented by the backend.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <1493263764-18657-2-git-send-email-cota@braap.org>
Message-Id: <1493263764-18657-3-git-send-email-cota@braap.org>
Message-Id: <1493263764-18657-4-git-send-email-cota@braap.org>
Message-Id: <1493263764-18657-5-git-send-email-cota@braap.org>
[rth: Squashed 4 related commits.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-06-05 09:25:42 -07:00
Richard Henderson a768e4e992 tcg: Add opcode for ctpop
The number of actual invocations of ctpop itself does not warrent
an opcode, but it is very helpful for POWER7 to use in generating
an expansion for ctz.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-10 08:48:56 -08:00
Richard Henderson 53c76c1990 tcg/aarch64: Handle ctz and clz opcodes
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-10 08:06:11 -08:00
Richard Henderson 0e28d0063b tcg: Add clz and ctz opcodes
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-10 08:06:11 -08:00
Richard Henderson e2179f94a1 tcg/aarch64: Implement field extraction opcodes
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-10 07:59:11 -08:00
Richard Henderson 7ec8bab3de tcg: Add field extraction primitives
Adds tcg_gen_extract_* and tcg_gen_sextract_* for extraction of
fixed position bitfields, much like we already have for deposit.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-10 07:59:11 -08:00
Markus Armbruster 14e54f8ecf tcg: Clean up tcg-target.h header guards
These use guard symbols like TCG_TARGET_$target.
scripts/clean-header-guards.pl doesn't like them because they don't
match their file name (they should, to make guard collisions less
likely).

Clean them up: use guard symbol $target_TCG_TARGET_H for
tcg/$target/tcg-target.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Richard Henderson 609ad70562 tcg: Split trunc_shr_i32 opcode into extr[lh]_i64_i32
Rather than allow arbitrary shift+trunc, only concern ourselves
with low and high parts.  This is all that was being used anyway.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-24 11:10:54 -07:00
Aurelien Jarno 0632e555fc tcg: rename trunc_shr_i32 into trunc_shr_i64_i32
The op is sometimes named trunc_shr_i32 and sometimes trunc_shr_i64_i32,
and the name in the README doesn't match the name offered to the
frontends.

Always use the long name to make it clear it is a size changing op.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-24 11:10:54 -07:00
Paolo Bonzini 006f8638c6 tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS
This will be used to size the TLB when more than 8 MMU modes are
used by the target.  Limitations come from the limited size of
the immediate fields (which sometimes, as in the case of Aarch64,
extend to instructions that shift the immediate).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1424436345-37924-2-git-send-email-pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:56 +02:00
Richard Henderson 3d1b2ff62c tcg: Remove TCG_TARGET_HAS_new_ldst
Since all backends have been converted, remove the compatibility code.

Acked-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-04 14:10:26 -07:00
Richard Henderson 8587c30c3e tcg-aarch64: Define TCG_TARGET_INSN_UNIT_SIZE
And use tcg pointer differencing functions as appropriate.

Acked-by: Claudio Fontana <claudio.fontana@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-12 10:06:52 -07:00
Richard Henderson 4bb7a41ed6 tcg: Add INDEX_op_trunc_shr_i32
Let the backend do something special for truncation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-28 11:06:34 -07:00
Richard Henderson 02eb19d0ec tcg: Use HOST_WORDS_BIGENDIAN
Instead of rolling a local TCG_TARGET_WORDS_BIGENDIAN.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-18 16:57:37 -07:00
Richard Henderson de61d14fa7 tcg-aarch64: Implement TCG_TARGET_HAS_new_ldst
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-16 12:13:01 -04:00
Richard Henderson d82b78e48b tcg-aarch64: Reuse LR in translated code
It's obviously call-clobbered, but is otherwise unused.
Repurpose it as the TCG temporary.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-16 12:12:59 -04:00
Richard Henderson 8678b71ce6 tcg-aarch64: Support div, rem
Clean up multiply at the same time.

For remainder, generic code will produce mul+sub,
whereas we can implement with msub.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-03-14 11:00:10 -07:00
Richard Henderson 1fcc9ddfb3 tcg-aarch64: Support muluh, mulsh
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-03-14 11:00:07 -07:00
Richard Henderson c6e929e784 tcg-aarch64: Support add2, sub2
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-03-14 11:00:04 -07:00
Richard Henderson b3c56df769 tcg-aarch64: Support deposit
Also tidy the implementation of ubfm, sbfm, extr in order to share code.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-03-14 11:00:01 -07:00
Richard Henderson 04ce397b33 tcg-aarch64: Support movcond
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-03-14 10:59:55 -07:00
Richard Henderson 14b155ddc4 tcg-aarch64: Support andc, orc, eqv, not, neg
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
2014-03-14 10:59:52 -07:00
Richard Henderson f713d6ad7b tcg: Add qemu_ld_st_i32/64
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>
2013-10-10 13:19:21 -07:00
Richard Henderson b93949ef6a tcg: Change flush_icache_range arguments to uintptr_t
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:29 -07:00
Richard Henderson 03271524b6 tcg: Add muluh and mulsh opcodes
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>
2013-09-02 09:08:29 -07:00