* [PULL 00/45] target-arm queue
@ 2020-05-14 14:20 Peter Maydell
2020-05-14 14:20 ` [PULL 01/45] target/arm: Use correct GDB XML for M-profile cores Peter Maydell
` (45 more replies)
0 siblings, 46 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
Mostly this is patches from me and RTH cleaning up and doing
more decodetree conversion for AArch32 Neon. The major new feature
is Dongjiu Geng's patchset to report host memory errors to KVM guests;
also a new aspeed board from Patrick Williams.
thanks
-- PMM
The following changes since commit 035b448b84f3557206abc44d786c5d3db2638f7d:
Merge remote-tracking branch 'remotes/gkurz/tags/9p-next-2020-05-14' into staging (2020-05-14 10:58:30 +0100)
are available in the Git repository at:
https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20200514
for you to fetch changes up to e95485f85657be21135c17a9226e297c21e73360:
target/arm: Convert NEON VFMA, VFMS 3-reg-same insns to decodetree (2020-05-14 15:03:09 +0100)
----------------------------------------------------------------
target-arm queue:
* target/arm: Use correct GDB XML for M-profile cores
* target/arm: Code cleanup to use gvec APIs better
* aspeed: Add support for the sonorapass-bmc board
* target/arm: Support reporting KVM host memory errors
to the guest via ACPI notifications
* target/arm: Finish conversion of Neon 3-reg-same insns to decodetree
----------------------------------------------------------------
Dongjiu Geng (10):
acpi: nvdimm: change NVDIMM_UUID_LE to a common macro
hw/arm/virt: Introduce a RAS machine option
docs: APEI GHES generation and CPER record description
ACPI: Build related register address fields via hardware error fw_cfg blob
ACPI: Build Hardware Error Source Table
ACPI: Record the Generic Error Status Block address
KVM: Move hwpoison page related functions into kvm-all.c
ACPI: Record Generic Error Status Block(GESB) table
target-arm: kvm64: handle SIGBUS signal from kernel or KVM
MAINTAINERS: Add ACPI/HEST/GHES entries
Patrick Williams (1):
aspeed: Add support for the sonorapass-bmc board
Peter Maydell (18):
target/arm: Use correct GDB XML for M-profile cores
target/arm: Convert Neon 3-reg-same VQRDMLAH/VQRDMLSH to decodetree
target/arm: Convert Neon 3-reg-same SHA to decodetree
target/arm: Convert Neon 64-bit element 3-reg-same insns
target/arm: Convert Neon VHADD 3-reg-same insns
target/arm: Convert Neon VABA/VABD 3-reg-same to decodetree
target/arm: Convert Neon VRHADD, VHSUB 3-reg-same insns to decodetree
target/arm: Convert Neon VQSHL, VRSHL, VQRSHL 3-reg-same insns to decodetree
target/arm: Convert Neon VPMAX/VPMIN 3-reg-same insns to decodetree
target/arm: Convert Neon VPADD 3-reg-same insns to decodetree
target/arm: Convert Neon VQDMULH/VQRDMULH 3-reg-same to decodetree
target/arm: Convert Neon VADD, VSUB, VABD 3-reg-same insns to decodetree
target/arm: Convert Neon VPMIN/VPMAX/VPADD float 3-reg-same insns to decodetree
target/arm: Convert Neon fp VMUL, VMLA, VMLS 3-reg-same insns to decodetree
target/arm: Convert Neon 3-reg-same compare insns to decodetree
target/arm: Move 'env' argument of recps_f32 and rsqrts_f32 helpers to usual place
target/arm: Convert Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS to decodetree
target/arm: Convert NEON VFMA, VFMS 3-reg-same insns to decodetree
Richard Henderson (16):
target/arm: Create gen_gvec_[us]sra
target/arm: Create gen_gvec_{u,s}{rshr,rsra}
target/arm: Create gen_gvec_{sri,sli}
target/arm: Remove unnecessary range check for VSHL
target/arm: Tidy handle_vec_simd_shri
target/arm: Create gen_gvec_{ceq,clt,cle,cgt,cge}0
target/arm: Create gen_gvec_{mla,mls}
target/arm: Swap argument order for VSHL during decode
target/arm: Create gen_gvec_{cmtst,ushl,sshl}
target/arm: Create gen_gvec_{uqadd, sqadd, uqsub, sqsub}
target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32
target/arm: Create gen_gvec_{qrdmla,qrdmls}
target/arm: Pass pointer to qc to qrdmla/qrdmls
target/arm: Clear tail in gvec_fmul_idx_*, gvec_fmla_idx_*
target/arm: Vectorize SABD/UABD
target/arm: Vectorize SABA/UABA
docs/specs/acpi_hest_ghes.rst | 110 ++
docs/specs/index.rst | 1 +
configure | 4 +-
default-configs/arm-softmmu.mak | 1 +
include/hw/acpi/aml-build.h | 1 +
include/hw/acpi/generic_event_device.h | 2 +
include/hw/acpi/ghes.h | 74 +
include/hw/arm/virt.h | 1 +
include/qemu/uuid.h | 27 +
include/sysemu/kvm.h | 3 +-
include/sysemu/kvm_int.h | 12 +
target/arm/cpu.h | 4 +
target/arm/helper.h | 78 +-
target/arm/internals.h | 5 +-
target/arm/translate.h | 84 +-
target/i386/cpu.h | 2 +
target/arm/neon-dp.decode | 119 +-
accel/kvm/kvm-all.c | 36 +
hw/acpi/aml-build.c | 2 +
hw/acpi/generic_event_device.c | 19 +
hw/acpi/ghes.c | 448 ++++++
hw/acpi/nvdimm.c | 10 +-
hw/arm/aspeed.c | 78 ++
hw/arm/virt-acpi-build.c | 15 +
hw/arm/virt.c | 23 +
target/arm/cpu_tcg.c | 1 +
target/arm/gdbstub.c | 22 +-
target/arm/helper.c | 2 +-
target/arm/kvm64.c | 77 ++
target/arm/neon_helper.c | 17 -
target/arm/tlb_helper.c | 2 +-
target/arm/translate-a64.c | 210 +--
target/arm/translate-neon.inc.c | 682 +++++++++-
target/arm/translate.c | 2349 +++++++++++++++++---------------
target/arm/vec_helper.c | 240 +++-
target/arm/vfp_helper.c | 9 +-
target/i386/kvm.c | 36 -
MAINTAINERS | 9 +
gdb-xml/arm-m-profile.xml | 27 +
hw/acpi/Kconfig | 4 +
hw/acpi/Makefile.objs | 1 +
41 files changed, 3402 insertions(+), 1445 deletions(-)
create mode 100644 docs/specs/acpi_hest_ghes.rst
create mode 100644 include/hw/acpi/ghes.h
create mode 100644 hw/acpi/ghes.c
create mode 100644 gdb-xml/arm-m-profile.xml
^ permalink raw reply [flat|nested] 52+ messages in thread
* [PULL 01/45] target/arm: Use correct GDB XML for M-profile cores
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
@ 2020-05-14 14:20 ` Peter Maydell
2020-05-14 14:20 ` [PULL 02/45] target/arm: Create gen_gvec_[us]sra Peter Maydell
` (44 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
GDB's remote protocol requires M-profile cores to use the feature
name 'org.gnu.gdb.arm.m-profile' instead of the 'org.gnu.gdb.arm.core'
feature used for A- and R-profile cores. We weren't doing this, which
meant GDB treated our M-profile cores like A-profile ones. This mostly
doesn't matter, but for instance means that it doesn't correctly
handle backtraces where an M-profile exception frame is involved.
Ship a copy of GDB's arm-m-profile.xml and use it on the M-profile
cores. The integer registers have the same offsets as the
arm-core.xml, but register 25 is the M-profile XPSR rather than the
A-profile CPSR, so we need to update arm_cpu_gdb_read_register() and
arm_cpu_gdb_write_register() to handle XSPR reads and writes.
Fixes: https://bugs.launchpad.net/qemu/+bug/1877136
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200507134755.13997-1-peter.maydell@linaro.org
---
configure | 4 ++--
target/arm/cpu_tcg.c | 1 +
target/arm/gdbstub.c | 22 ++++++++++++++++++----
gdb-xml/arm-m-profile.xml | 27 +++++++++++++++++++++++++++
4 files changed, 48 insertions(+), 6 deletions(-)
create mode 100644 gdb-xml/arm-m-profile.xml
diff --git a/configure b/configure
index c50c006b864..26084fc53ad 100755
--- a/configure
+++ b/configure
@@ -7806,14 +7806,14 @@ case "$target_name" in
TARGET_SYSTBL_ABI=common,oabi
bflt="yes"
mttcg="yes"
- gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
+ gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
;;
aarch64|aarch64_be)
TARGET_ARCH=aarch64
TARGET_BASE_ARCH=arm
bflt="yes"
mttcg="yes"
- gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
+ gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
;;
cris)
;;
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
index 591baef5351..00b0e08f33e 100644
--- a/target/arm/cpu_tcg.c
+++ b/target/arm/cpu_tcg.c
@@ -605,6 +605,7 @@ static void arm_v7m_class_init(ObjectClass *oc, void *data)
#endif
cc->cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt;
+ cc->gdb_core_xml_file = "arm-m-profile.xml";
}
static const ARMCPUInfo arm_tcg_cpus[] = {
diff --git a/target/arm/gdbstub.c b/target/arm/gdbstub.c
index 063551df234..ecfa88f8e60 100644
--- a/target/arm/gdbstub.c
+++ b/target/arm/gdbstub.c
@@ -57,8 +57,12 @@ int arm_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
}
return gdb_get_reg32(mem_buf, 0);
case 25:
- /* CPSR */
- return gdb_get_reg32(mem_buf, cpsr_read(env));
+ /* CPSR, or XPSR for M-profile */
+ if (arm_feature(env, ARM_FEATURE_M)) {
+ return gdb_get_reg32(mem_buf, xpsr_read(env));
+ } else {
+ return gdb_get_reg32(mem_buf, cpsr_read(env));
+ }
}
/* Unknown register. */
return 0;
@@ -98,8 +102,18 @@ int arm_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
}
return 4;
case 25:
- /* CPSR */
- cpsr_write(env, tmp, 0xffffffff, CPSRWriteByGDBStub);
+ /* CPSR, or XPSR for M-profile */
+ if (arm_feature(env, ARM_FEATURE_M)) {
+ /*
+ * Don't allow writing to XPSR.Exception as it can cause
+ * a transition into or out of handler mode (it's not
+ * writeable via the MSR insn so this is a reasonable
+ * restriction). Other fields are safe to update.
+ */
+ xpsr_write(env, tmp, ~XPSR_EXCP);
+ } else {
+ cpsr_write(env, tmp, 0xffffffff, CPSRWriteByGDBStub);
+ }
return 4;
}
/* Unknown register. */
diff --git a/gdb-xml/arm-m-profile.xml b/gdb-xml/arm-m-profile.xml
new file mode 100644
index 00000000000..5319d764eeb
--- /dev/null
+++ b/gdb-xml/arm-m-profile.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010-2020 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.arm.m-profile">
+ <reg name="r0" bitsize="32"/>
+ <reg name="r1" bitsize="32"/>
+ <reg name="r2" bitsize="32"/>
+ <reg name="r3" bitsize="32"/>
+ <reg name="r4" bitsize="32"/>
+ <reg name="r5" bitsize="32"/>
+ <reg name="r6" bitsize="32"/>
+ <reg name="r7" bitsize="32"/>
+ <reg name="r8" bitsize="32"/>
+ <reg name="r9" bitsize="32"/>
+ <reg name="r10" bitsize="32"/>
+ <reg name="r11" bitsize="32"/>
+ <reg name="r12" bitsize="32"/>
+ <reg name="sp" bitsize="32" type="data_ptr"/>
+ <reg name="lr" bitsize="32"/>
+ <reg name="pc" bitsize="32" type="code_ptr"/>
+ <reg name="xpsr" bitsize="32" regnum="25"/>
+</feature>
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 02/45] target/arm: Create gen_gvec_[us]sra
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
2020-05-14 14:20 ` [PULL 01/45] target/arm: Use correct GDB XML for M-profile cores Peter Maydell
@ 2020-05-14 14:20 ` Peter Maydell
2020-05-14 14:20 ` [PULL 03/45] target/arm: Create gen_gvec_{u,s}{rshr,rsra} Peter Maydell
` (43 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
The functions eliminate duplication of the special cases for
this operation. They match up with the GVecGen2iFn typedef.
Add out-of-line helpers. We got away with only having inline
expanders because the neon vector size is only 16 bytes, and
we know that the inline expansion will always succeed.
When we reuse this for SVE, tcg-gvec-op may decide to use an
out-of-line helper due to longer vector lengths.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.h | 10 +++
target/arm/translate.h | 7 +-
target/arm/translate-a64.c | 15 +---
target/arm/translate.c | 161 ++++++++++++++++++++++---------------
target/arm/vec_helper.c | 25 ++++++
5 files changed, 139 insertions(+), 79 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 5817626b20b..9bc162345ca 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -691,6 +691,16 @@ DEF_HELPER_FLAGS_4(gvec_pmull_q, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(neon_pmull_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ssra_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ssra_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ssra_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ssra_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(gvec_usra_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_usra_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_usra_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_usra_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
#ifdef TARGET_AARCH64
#include "helper-a64.h"
#include "helper-sve.h"
diff --git a/target/arm/translate.h b/target/arm/translate.h
index cb7925ea461..1839a59a8ea 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -285,8 +285,6 @@ extern const GVecGen3 mls_op[4];
extern const GVecGen3 cmtst_op[4];
extern const GVecGen3 sshl_op[4];
extern const GVecGen3 ushl_op[4];
-extern const GVecGen2i ssra_op[4];
-extern const GVecGen2i usra_op[4];
extern const GVecGen2i sri_op[4];
extern const GVecGen2i sli_op[4];
extern const GVecGen4 uqadd_op[4];
@@ -299,6 +297,11 @@ void gen_sshl_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b);
void gen_ushl_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b);
void gen_sshl_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b);
+void gen_gvec_ssra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_usra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 62e5729904a..315de9a9b68 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -10188,19 +10188,8 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
switch (opcode) {
case 0x02: /* SSRA / USRA (accumulate) */
- if (is_u) {
- /* Shift count same as element size produces zero to add. */
- if (shift == 8 << size) {
- goto done;
- }
- gen_gvec_op2i(s, is_q, rd, rn, shift, &usra_op[size]);
- } else {
- /* Shift count same as element size produces all sign to add. */
- if (shift == 8 << size) {
- shift -= 1;
- }
- gen_gvec_op2i(s, is_q, rd, rn, shift, &ssra_op[size]);
- }
+ gen_gvec_fn2i(s, is_q, rd, rn, shift,
+ is_u ? gen_gvec_usra : gen_gvec_ssra, size);
return;
case 0x08: /* SRI */
/* Shift count same as element size is valid but does nothing. */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 74fac1d09c1..c18140f2e65 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -3874,33 +3874,51 @@ static void gen_ssra_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
tcg_gen_add_vec(vece, d, d, a);
}
-static const TCGOpcode vecop_list_ssra[] = {
- INDEX_op_sari_vec, INDEX_op_add_vec, 0
-};
+void gen_gvec_ssra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sari_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen2i ops[4] = {
+ { .fni8 = gen_ssra8_i64,
+ .fniv = gen_ssra_vec,
+ .fno = gen_helper_gvec_ssra_b,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni8 = gen_ssra16_i64,
+ .fniv = gen_ssra_vec,
+ .fno = gen_helper_gvec_ssra_h,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_ssra32_i32,
+ .fniv = gen_ssra_vec,
+ .fno = gen_helper_gvec_ssra_s,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_ssra64_i64,
+ .fniv = gen_ssra_vec,
+ .fno = gen_helper_gvec_ssra_b,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
-const GVecGen2i ssra_op[4] = {
- { .fni8 = gen_ssra8_i64,
- .fniv = gen_ssra_vec,
- .load_dest = true,
- .opt_opc = vecop_list_ssra,
- .vece = MO_8 },
- { .fni8 = gen_ssra16_i64,
- .fniv = gen_ssra_vec,
- .load_dest = true,
- .opt_opc = vecop_list_ssra,
- .vece = MO_16 },
- { .fni4 = gen_ssra32_i32,
- .fniv = gen_ssra_vec,
- .load_dest = true,
- .opt_opc = vecop_list_ssra,
- .vece = MO_32 },
- { .fni8 = gen_ssra64_i64,
- .fniv = gen_ssra_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .opt_opc = vecop_list_ssra,
- .load_dest = true,
- .vece = MO_64 },
-};
+ /* tszimm encoding produces immediates in the range [1..esize]. */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ /*
+ * Shifts larger than the element size are architecturally valid.
+ * Signed results in all sign bits.
+ */
+ shift = MIN(shift, (8 << vece) - 1);
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+}
static void gen_usra8_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
{
@@ -3932,33 +3950,55 @@ static void gen_usra_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
tcg_gen_add_vec(vece, d, d, a);
}
-static const TCGOpcode vecop_list_usra[] = {
- INDEX_op_shri_vec, INDEX_op_add_vec, 0
-};
+void gen_gvec_usra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_shri_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen2i ops[4] = {
+ { .fni8 = gen_usra8_i64,
+ .fniv = gen_usra_vec,
+ .fno = gen_helper_gvec_usra_b,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8, },
+ { .fni8 = gen_usra16_i64,
+ .fniv = gen_usra_vec,
+ .fno = gen_helper_gvec_usra_h,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16, },
+ { .fni4 = gen_usra32_i32,
+ .fniv = gen_usra_vec,
+ .fno = gen_helper_gvec_usra_s,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32, },
+ { .fni8 = gen_usra64_i64,
+ .fniv = gen_usra_vec,
+ .fno = gen_helper_gvec_usra_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_64, },
+ };
-const GVecGen2i usra_op[4] = {
- { .fni8 = gen_usra8_i64,
- .fniv = gen_usra_vec,
- .load_dest = true,
- .opt_opc = vecop_list_usra,
- .vece = MO_8, },
- { .fni8 = gen_usra16_i64,
- .fniv = gen_usra_vec,
- .load_dest = true,
- .opt_opc = vecop_list_usra,
- .vece = MO_16, },
- { .fni4 = gen_usra32_i32,
- .fniv = gen_usra_vec,
- .load_dest = true,
- .opt_opc = vecop_list_usra,
- .vece = MO_32, },
- { .fni8 = gen_usra64_i64,
- .fniv = gen_usra_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .load_dest = true,
- .opt_opc = vecop_list_usra,
- .vece = MO_64, },
-};
+ /* tszimm encoding produces immediates in the range [1..esize]. */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ /*
+ * Shifts larger than the element size are architecturally valid.
+ * Unsigned results in all zeros as input to accumulate: nop.
+ */
+ if (shift < (8 << vece)) {
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+ } else {
+ /* Nop, but we do need to clear the tail. */
+ tcg_gen_gvec_mov(vece, rd_ofs, rd_ofs, opr_sz, max_sz);
+ }
+}
static void gen_shr8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
{
@@ -5220,19 +5260,12 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case 1: /* VSRA */
/* Right shift comes here negative. */
shift = -shift;
- /* Shifts larger than the element size are architecturally
- * valid. Unsigned results in all zeros; signed results
- * in all sign bits.
- */
- if (!u) {
- tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size,
- MIN(shift, (8 << size) - 1),
- &ssra_op[size]);
- } else if (shift >= 8 << size) {
- /* rd += 0 */
+ if (u) {
+ gen_gvec_usra(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
} else {
- tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size,
- shift, &usra_op[size]);
+ gen_gvec_ssra(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
}
return 0;
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index 3d534188a8b..230085b35ed 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -899,6 +899,31 @@ void HELPER(gvec_sqsub_d)(void *vd, void *vq, void *vn,
clear_tail(d, oprsz, simd_maxsz(desc));
}
+
+#define DO_SRA(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ int shift = simd_data(desc); \
+ TYPE *d = vd, *n = vn; \
+ for (i = 0; i < oprsz / sizeof(TYPE); i++) { \
+ d[i] += n[i] >> shift; \
+ } \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
+}
+
+DO_SRA(gvec_ssra_b, int8_t)
+DO_SRA(gvec_ssra_h, int16_t)
+DO_SRA(gvec_ssra_s, int32_t)
+DO_SRA(gvec_ssra_d, int64_t)
+
+DO_SRA(gvec_usra_b, uint8_t)
+DO_SRA(gvec_usra_h, uint16_t)
+DO_SRA(gvec_usra_s, uint32_t)
+DO_SRA(gvec_usra_d, uint64_t)
+
+#undef DO_SRA
+
/*
* Convert float16 to float32, raising no exceptions and
* preserving exceptional values, including SNaN.
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 03/45] target/arm: Create gen_gvec_{u,s}{rshr,rsra}
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
2020-05-14 14:20 ` [PULL 01/45] target/arm: Use correct GDB XML for M-profile cores Peter Maydell
2020-05-14 14:20 ` [PULL 02/45] target/arm: Create gen_gvec_[us]sra Peter Maydell
@ 2020-05-14 14:20 ` Peter Maydell
2020-05-14 14:20 ` [PULL 04/45] target/arm: Create gen_gvec_{sri,sli} Peter Maydell
` (42 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Create vectorized versions of handle_shri_with_rndacc
for shift+round and shift+round+accumulate. Add out-of-line
helpers in preparation for longer vector lengths from SVE.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.h | 20 ++
target/arm/translate.h | 9 +
target/arm/translate-a64.c | 11 +-
target/arm/translate.c | 463 +++++++++++++++++++++++++++++++++++--
target/arm/vec_helper.c | 50 ++++
5 files changed, 527 insertions(+), 26 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 9bc162345ca..aeb1f524553 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -701,6 +701,26 @@ DEF_HELPER_FLAGS_3(gvec_usra_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
DEF_HELPER_FLAGS_3(gvec_usra_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
DEF_HELPER_FLAGS_3(gvec_usra_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srshr_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srshr_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srshr_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srshr_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(gvec_urshr_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_urshr_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_urshr_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_urshr_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(gvec_srsra_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srsra_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srsra_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_srsra_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(gvec_ursra_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ursra_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ursra_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_ursra_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
#ifdef TARGET_AARCH64
#include "helper-a64.h"
#include "helper-sve.h"
diff --git a/target/arm/translate.h b/target/arm/translate.h
index 1839a59a8ea..1db3b43a614 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -302,6 +302,15 @@ void gen_gvec_ssra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
void gen_gvec_usra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_srshr(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_urshr(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_srsra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_ursra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 315de9a9b68..50949d306bf 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -10218,10 +10218,15 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
return;
case 0x04: /* SRSHR / URSHR (rounding) */
- break;
+ gen_gvec_fn2i(s, is_q, rd, rn, shift,
+ is_u ? gen_gvec_urshr : gen_gvec_srshr, size);
+ return;
+
case 0x06: /* SRSRA / URSRA (accum + rounding) */
- accumulate = true;
- break;
+ gen_gvec_fn2i(s, is_q, rd, rn, shift,
+ is_u ? gen_gvec_ursra : gen_gvec_srsra, size);
+ return;
+
default:
g_assert_not_reached();
}
diff --git a/target/arm/translate.c b/target/arm/translate.c
index c18140f2e65..aa03dc236bc 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -4000,6 +4000,422 @@ void gen_gvec_usra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
}
}
+/*
+ * Shift one less than the requested amount, and the low bit is
+ * the rounding bit. For the 8 and 16-bit operations, because we
+ * mask the low bit, we can perform a normal integer shift instead
+ * of a vector shift.
+ */
+static void gen_srshr8_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_shri_i64(t, a, sh - 1);
+ tcg_gen_andi_i64(t, t, dup_const(MO_8, 1));
+ tcg_gen_vec_sar8i_i64(d, a, sh);
+ tcg_gen_vec_add8_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_srshr16_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_shri_i64(t, a, sh - 1);
+ tcg_gen_andi_i64(t, t, dup_const(MO_16, 1));
+ tcg_gen_vec_sar16i_i64(d, a, sh);
+ tcg_gen_vec_add16_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_srshr32_i32(TCGv_i32 d, TCGv_i32 a, int32_t sh)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+
+ tcg_gen_extract_i32(t, a, sh - 1, 1);
+ tcg_gen_sari_i32(d, a, sh);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_srshr64_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_extract_i64(t, a, sh - 1, 1);
+ tcg_gen_sari_i64(d, a, sh);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_srshr_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ TCGv_vec ones = tcg_temp_new_vec_matching(d);
+
+ tcg_gen_shri_vec(vece, t, a, sh - 1);
+ tcg_gen_dupi_vec(vece, ones, 1);
+ tcg_gen_and_vec(vece, t, t, ones);
+ tcg_gen_sari_vec(vece, d, a, sh);
+ tcg_gen_add_vec(vece, d, d, t);
+
+ tcg_temp_free_vec(t);
+ tcg_temp_free_vec(ones);
+}
+
+void gen_gvec_srshr(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_shri_vec, INDEX_op_sari_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen2i ops[4] = {
+ { .fni8 = gen_srshr8_i64,
+ .fniv = gen_srshr_vec,
+ .fno = gen_helper_gvec_srshr_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni8 = gen_srshr16_i64,
+ .fniv = gen_srshr_vec,
+ .fno = gen_helper_gvec_srshr_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_srshr32_i32,
+ .fniv = gen_srshr_vec,
+ .fno = gen_helper_gvec_srshr_s,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_srshr64_i64,
+ .fniv = gen_srshr_vec,
+ .fno = gen_helper_gvec_srshr_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+
+ /* tszimm encoding produces immediates in the range [1..esize] */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ if (shift == (8 << vece)) {
+ /*
+ * Shifts larger than the element size are architecturally valid.
+ * Signed results in all sign bits. With rounding, this produces
+ * (-1 + 1) >> 1 == 0, or (0 + 1) >> 1 == 0.
+ * I.e. always zero.
+ */
+ tcg_gen_gvec_dup_imm(vece, rd_ofs, opr_sz, max_sz, 0);
+ } else {
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+ }
+}
+
+static void gen_srsra8_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ gen_srshr8_i64(t, a, sh);
+ tcg_gen_vec_add8_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_srsra16_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ gen_srshr16_i64(t, a, sh);
+ tcg_gen_vec_add16_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_srsra32_i32(TCGv_i32 d, TCGv_i32 a, int32_t sh)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+
+ gen_srshr32_i32(t, a, sh);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_srsra64_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ gen_srshr64_i64(t, a, sh);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_srsra_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+
+ gen_srshr_vec(vece, t, a, sh);
+ tcg_gen_add_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void gen_gvec_srsra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_shri_vec, INDEX_op_sari_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen2i ops[4] = {
+ { .fni8 = gen_srsra8_i64,
+ .fniv = gen_srsra_vec,
+ .fno = gen_helper_gvec_srsra_b,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_8 },
+ { .fni8 = gen_srsra16_i64,
+ .fniv = gen_srsra_vec,
+ .fno = gen_helper_gvec_srsra_h,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_16 },
+ { .fni4 = gen_srsra32_i32,
+ .fniv = gen_srsra_vec,
+ .fno = gen_helper_gvec_srsra_s,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_32 },
+ { .fni8 = gen_srsra64_i64,
+ .fniv = gen_srsra_vec,
+ .fno = gen_helper_gvec_srsra_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
+
+ /* tszimm encoding produces immediates in the range [1..esize] */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ /*
+ * Shifts larger than the element size are architecturally valid.
+ * Signed results in all sign bits. With rounding, this produces
+ * (-1 + 1) >> 1 == 0, or (0 + 1) >> 1 == 0.
+ * I.e. always zero. With accumulation, this leaves D unchanged.
+ */
+ if (shift == (8 << vece)) {
+ /* Nop, but we do need to clear the tail. */
+ tcg_gen_gvec_mov(vece, rd_ofs, rd_ofs, opr_sz, max_sz);
+ } else {
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+ }
+}
+
+static void gen_urshr8_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_shri_i64(t, a, sh - 1);
+ tcg_gen_andi_i64(t, t, dup_const(MO_8, 1));
+ tcg_gen_vec_shr8i_i64(d, a, sh);
+ tcg_gen_vec_add8_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_urshr16_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_shri_i64(t, a, sh - 1);
+ tcg_gen_andi_i64(t, t, dup_const(MO_16, 1));
+ tcg_gen_vec_shr16i_i64(d, a, sh);
+ tcg_gen_vec_add16_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_urshr32_i32(TCGv_i32 d, TCGv_i32 a, int32_t sh)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+
+ tcg_gen_extract_i32(t, a, sh - 1, 1);
+ tcg_gen_shri_i32(d, a, sh);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_urshr64_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_extract_i64(t, a, sh - 1, 1);
+ tcg_gen_shri_i64(d, a, sh);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_urshr_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t shift)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ TCGv_vec ones = tcg_temp_new_vec_matching(d);
+
+ tcg_gen_shri_vec(vece, t, a, shift - 1);
+ tcg_gen_dupi_vec(vece, ones, 1);
+ tcg_gen_and_vec(vece, t, t, ones);
+ tcg_gen_shri_vec(vece, d, a, shift);
+ tcg_gen_add_vec(vece, d, d, t);
+
+ tcg_temp_free_vec(t);
+ tcg_temp_free_vec(ones);
+}
+
+void gen_gvec_urshr(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_shri_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen2i ops[4] = {
+ { .fni8 = gen_urshr8_i64,
+ .fniv = gen_urshr_vec,
+ .fno = gen_helper_gvec_urshr_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni8 = gen_urshr16_i64,
+ .fniv = gen_urshr_vec,
+ .fno = gen_helper_gvec_urshr_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_urshr32_i32,
+ .fniv = gen_urshr_vec,
+ .fno = gen_helper_gvec_urshr_s,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_urshr64_i64,
+ .fniv = gen_urshr_vec,
+ .fno = gen_helper_gvec_urshr_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+
+ /* tszimm encoding produces immediates in the range [1..esize] */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ if (shift == (8 << vece)) {
+ /*
+ * Shifts larger than the element size are architecturally valid.
+ * Unsigned results in zero. With rounding, this produces a
+ * copy of the most significant bit.
+ */
+ tcg_gen_gvec_shri(vece, rd_ofs, rm_ofs, shift - 1, opr_sz, max_sz);
+ } else {
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+ }
+}
+
+static void gen_ursra8_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ if (sh == 8) {
+ tcg_gen_vec_shr8i_i64(t, a, 7);
+ } else {
+ gen_urshr8_i64(t, a, sh);
+ }
+ tcg_gen_vec_add8_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_ursra16_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ if (sh == 16) {
+ tcg_gen_vec_shr16i_i64(t, a, 15);
+ } else {
+ gen_urshr16_i64(t, a, sh);
+ }
+ tcg_gen_vec_add16_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_ursra32_i32(TCGv_i32 d, TCGv_i32 a, int32_t sh)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+
+ if (sh == 32) {
+ tcg_gen_shri_i32(t, a, 31);
+ } else {
+ gen_urshr32_i32(t, a, sh);
+ }
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_ursra64_i64(TCGv_i64 d, TCGv_i64 a, int64_t sh)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ if (sh == 64) {
+ tcg_gen_shri_i64(t, a, 63);
+ } else {
+ gen_urshr64_i64(t, a, sh);
+ }
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_ursra_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+
+ if (sh == (8 << vece)) {
+ tcg_gen_shri_vec(vece, t, a, sh - 1);
+ } else {
+ gen_urshr_vec(vece, t, a, sh);
+ }
+ tcg_gen_add_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void gen_gvec_ursra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_shri_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen2i ops[4] = {
+ { .fni8 = gen_ursra8_i64,
+ .fniv = gen_ursra_vec,
+ .fno = gen_helper_gvec_ursra_b,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_8 },
+ { .fni8 = gen_ursra16_i64,
+ .fniv = gen_ursra_vec,
+ .fno = gen_helper_gvec_ursra_h,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_16 },
+ { .fni4 = gen_ursra32_i32,
+ .fniv = gen_ursra_vec,
+ .fno = gen_helper_gvec_ursra_s,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_32 },
+ { .fni8 = gen_ursra64_i64,
+ .fniv = gen_ursra_vec,
+ .fno = gen_helper_gvec_ursra_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
+
+ /* tszimm encoding produces immediates in the range [1..esize] */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+}
+
static void gen_shr8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
{
uint64_t mask = dup_const(MO_8, 0xff >> shift);
@@ -5269,6 +5685,30 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
return 0;
+ case 2: /* VRSHR */
+ /* Right shift comes here negative. */
+ shift = -shift;
+ if (u) {
+ gen_gvec_urshr(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
+ } else {
+ gen_gvec_srshr(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
+ }
+ return 0;
+
+ case 3: /* VRSRA */
+ /* Right shift comes here negative. */
+ shift = -shift;
+ if (u) {
+ gen_gvec_ursra(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
+ } else {
+ gen_gvec_srsra(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
+ }
+ return 0;
+
case 4: /* VSRI */
if (!u) {
return 1;
@@ -5320,13 +5760,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
neon_load_reg64(cpu_V0, rm + pass);
tcg_gen_movi_i64(cpu_V1, imm);
switch (op) {
- case 2: /* VRSHR */
- case 3: /* VRSRA */
- if (u)
- gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1);
- else
- gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1);
- break;
case 6: /* VQSHLU */
gen_helper_neon_qshlu_s64(cpu_V0, cpu_env,
cpu_V0, cpu_V1);
@@ -5343,11 +5776,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
default:
g_assert_not_reached();
}
- if (op == 3) {
- /* Accumulate. */
- neon_load_reg64(cpu_V1, rd + pass);
- tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1);
- }
neon_store_reg64(cpu_V0, rd + pass);
} else { /* size < 3 */
/* Operands in T0 and T1. */
@@ -5355,10 +5783,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp2 = tcg_temp_new_i32();
tcg_gen_movi_i32(tmp2, imm);
switch (op) {
- case 2: /* VRSHR */
- case 3: /* VRSRA */
- GEN_NEON_INTEGER_OP(rshl);
- break;
case 6: /* VQSHLU */
switch (size) {
case 0:
@@ -5384,13 +5808,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
g_assert_not_reached();
}
tcg_temp_free_i32(tmp2);
-
- if (op == 3) {
- /* Accumulate. */
- tmp2 = neon_load_reg(rd, pass);
- gen_neon_add(size, tmp, tmp2);
- tcg_temp_free_i32(tmp2);
- }
neon_store_reg(rd, pass, tmp);
}
} /* for pass */
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index 230085b35ed..fd8b2bff493 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -924,6 +924,56 @@ DO_SRA(gvec_usra_d, uint64_t)
#undef DO_SRA
+#define DO_RSHR(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ int shift = simd_data(desc); \
+ TYPE *d = vd, *n = vn; \
+ for (i = 0; i < oprsz / sizeof(TYPE); i++) { \
+ TYPE tmp = n[i] >> (shift - 1); \
+ d[i] = (tmp >> 1) + (tmp & 1); \
+ } \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
+}
+
+DO_RSHR(gvec_srshr_b, int8_t)
+DO_RSHR(gvec_srshr_h, int16_t)
+DO_RSHR(gvec_srshr_s, int32_t)
+DO_RSHR(gvec_srshr_d, int64_t)
+
+DO_RSHR(gvec_urshr_b, uint8_t)
+DO_RSHR(gvec_urshr_h, uint16_t)
+DO_RSHR(gvec_urshr_s, uint32_t)
+DO_RSHR(gvec_urshr_d, uint64_t)
+
+#undef DO_RSHR
+
+#define DO_RSRA(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ int shift = simd_data(desc); \
+ TYPE *d = vd, *n = vn; \
+ for (i = 0; i < oprsz / sizeof(TYPE); i++) { \
+ TYPE tmp = n[i] >> (shift - 1); \
+ d[i] += (tmp >> 1) + (tmp & 1); \
+ } \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
+}
+
+DO_RSRA(gvec_srsra_b, int8_t)
+DO_RSRA(gvec_srsra_h, int16_t)
+DO_RSRA(gvec_srsra_s, int32_t)
+DO_RSRA(gvec_srsra_d, int64_t)
+
+DO_RSRA(gvec_ursra_b, uint8_t)
+DO_RSRA(gvec_ursra_h, uint16_t)
+DO_RSRA(gvec_ursra_s, uint32_t)
+DO_RSRA(gvec_ursra_d, uint64_t)
+
+#undef DO_RSRA
+
/*
* Convert float16 to float32, raising no exceptions and
* preserving exceptional values, including SNaN.
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 04/45] target/arm: Create gen_gvec_{sri,sli}
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (2 preceding siblings ...)
2020-05-14 14:20 ` [PULL 03/45] target/arm: Create gen_gvec_{u,s}{rshr,rsra} Peter Maydell
@ 2020-05-14 14:20 ` Peter Maydell
2020-05-14 14:20 ` [PULL 05/45] target/arm: Remove unnecessary range check for VSHL Peter Maydell
` (41 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
The functions eliminate duplication of the special cases for
this operation. They match up with the GVecGen2iFn typedef.
Add out-of-line helpers. We got away with only having inline
expanders because the neon vector size is only 16 bytes, and
we know that the inline expansion will always succeed.
When we reuse this for SVE, tcg-gvec-op may decide to use an
out-of-line helper due to longer vector lengths.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.h | 10 ++
target/arm/translate.h | 7 +-
target/arm/translate-a64.c | 20 +---
target/arm/translate.c | 186 +++++++++++++++++++++----------------
target/arm/vec_helper.c | 38 ++++++++
5 files changed, 160 insertions(+), 101 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index aeb1f524553..33c76192d20 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -721,6 +721,16 @@ DEF_HELPER_FLAGS_3(gvec_ursra_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
DEF_HELPER_FLAGS_3(gvec_ursra_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
DEF_HELPER_FLAGS_3(gvec_ursra_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sri_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sri_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sri_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sri_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(gvec_sli_b, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sli_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sli_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(gvec_sli_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
#ifdef TARGET_AARCH64
#include "helper-a64.h"
#include "helper-sve.h"
diff --git a/target/arm/translate.h b/target/arm/translate.h
index 1db3b43a614..fa5c3f12b96 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -285,8 +285,6 @@ extern const GVecGen3 mls_op[4];
extern const GVecGen3 cmtst_op[4];
extern const GVecGen3 sshl_op[4];
extern const GVecGen3 ushl_op[4];
-extern const GVecGen2i sri_op[4];
-extern const GVecGen2i sli_op[4];
extern const GVecGen4 uqadd_op[4];
extern const GVecGen4 sqadd_op[4];
extern const GVecGen4 uqsub_op[4];
@@ -311,6 +309,11 @@ void gen_gvec_srsra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
void gen_gvec_ursra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sri(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sli(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 50949d306bf..2d7dad6c3f2 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -585,16 +585,6 @@ static void gen_gvec_op2(DisasContext *s, bool is_q, int rd,
is_q ? 16 : 8, vec_full_reg_size(s), gvec_op);
}
-/* Expand a 2-operand + immediate AdvSIMD vector operation using
- * an op descriptor.
- */
-static void gen_gvec_op2i(DisasContext *s, bool is_q, int rd,
- int rn, int64_t imm, const GVecGen2i *gvec_op)
-{
- tcg_gen_gvec_2i(vec_full_reg_offset(s, rd), vec_full_reg_offset(s, rn),
- is_q ? 16 : 8, vec_full_reg_size(s), imm, gvec_op);
-}
-
/* Expand a 3-operand AdvSIMD vector operation using an op descriptor. */
static void gen_gvec_op3(DisasContext *s, bool is_q, int rd,
int rn, int rm, const GVecGen3 *gvec_op)
@@ -10191,12 +10181,9 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
gen_gvec_fn2i(s, is_q, rd, rn, shift,
is_u ? gen_gvec_usra : gen_gvec_ssra, size);
return;
+
case 0x08: /* SRI */
- /* Shift count same as element size is valid but does nothing. */
- if (shift == 8 << size) {
- goto done;
- }
- gen_gvec_op2i(s, is_q, rd, rn, shift, &sri_op[size]);
+ gen_gvec_fn2i(s, is_q, rd, rn, shift, gen_gvec_sri, size);
return;
case 0x00: /* SSHR / USHR */
@@ -10247,7 +10234,6 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
}
tcg_temp_free_i64(tcg_round);
- done:
clear_vec_high(s, is_q, rd);
}
@@ -10272,7 +10258,7 @@ static void handle_vec_simd_shli(DisasContext *s, bool is_q, bool insert,
}
if (insert) {
- gen_gvec_op2i(s, is_q, rd, rn, shift, &sli_op[size]);
+ gen_gvec_fn2i(s, is_q, rd, rn, shift, gen_gvec_sli, size);
} else {
gen_gvec_fn2i(s, is_q, rd, rn, shift, tcg_gen_gvec_shli, size);
}
diff --git a/target/arm/translate.c b/target/arm/translate.c
index aa03dc236bc..3c489852dce 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -4454,47 +4454,62 @@ static void gen_shr64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
static void gen_shr_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
{
- if (sh == 0) {
- tcg_gen_mov_vec(d, a);
- } else {
- TCGv_vec t = tcg_temp_new_vec_matching(d);
- TCGv_vec m = tcg_temp_new_vec_matching(d);
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ TCGv_vec m = tcg_temp_new_vec_matching(d);
- tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK((8 << vece) - sh, sh));
- tcg_gen_shri_vec(vece, t, a, sh);
- tcg_gen_and_vec(vece, d, d, m);
- tcg_gen_or_vec(vece, d, d, t);
+ tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK((8 << vece) - sh, sh));
+ tcg_gen_shri_vec(vece, t, a, sh);
+ tcg_gen_and_vec(vece, d, d, m);
+ tcg_gen_or_vec(vece, d, d, t);
- tcg_temp_free_vec(t);
- tcg_temp_free_vec(m);
- }
+ tcg_temp_free_vec(t);
+ tcg_temp_free_vec(m);
}
-static const TCGOpcode vecop_list_sri[] = { INDEX_op_shri_vec, 0 };
+void gen_gvec_sri(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = { INDEX_op_shri_vec, 0 };
+ const GVecGen2i ops[4] = {
+ { .fni8 = gen_shr8_ins_i64,
+ .fniv = gen_shr_ins_vec,
+ .fno = gen_helper_gvec_sri_b,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni8 = gen_shr16_ins_i64,
+ .fniv = gen_shr_ins_vec,
+ .fno = gen_helper_gvec_sri_h,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_shr32_ins_i32,
+ .fniv = gen_shr_ins_vec,
+ .fno = gen_helper_gvec_sri_s,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_shr64_ins_i64,
+ .fniv = gen_shr_ins_vec,
+ .fno = gen_helper_gvec_sri_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
-const GVecGen2i sri_op[4] = {
- { .fni8 = gen_shr8_ins_i64,
- .fniv = gen_shr_ins_vec,
- .load_dest = true,
- .opt_opc = vecop_list_sri,
- .vece = MO_8 },
- { .fni8 = gen_shr16_ins_i64,
- .fniv = gen_shr_ins_vec,
- .load_dest = true,
- .opt_opc = vecop_list_sri,
- .vece = MO_16 },
- { .fni4 = gen_shr32_ins_i32,
- .fniv = gen_shr_ins_vec,
- .load_dest = true,
- .opt_opc = vecop_list_sri,
- .vece = MO_32 },
- { .fni8 = gen_shr64_ins_i64,
- .fniv = gen_shr_ins_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .load_dest = true,
- .opt_opc = vecop_list_sri,
- .vece = MO_64 },
-};
+ /* tszimm encoding produces immediates in the range [1..esize]. */
+ tcg_debug_assert(shift > 0);
+ tcg_debug_assert(shift <= (8 << vece));
+
+ /* Shift of esize leaves destination unchanged. */
+ if (shift < (8 << vece)) {
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+ } else {
+ /* Nop, but we do need to clear the tail. */
+ tcg_gen_gvec_mov(vece, rd_ofs, rd_ofs, opr_sz, max_sz);
+ }
+}
static void gen_shl8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
{
@@ -4532,47 +4547,60 @@ static void gen_shl64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
static void gen_shl_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh)
{
- if (sh == 0) {
- tcg_gen_mov_vec(d, a);
- } else {
- TCGv_vec t = tcg_temp_new_vec_matching(d);
- TCGv_vec m = tcg_temp_new_vec_matching(d);
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ TCGv_vec m = tcg_temp_new_vec_matching(d);
- tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK(0, sh));
- tcg_gen_shli_vec(vece, t, a, sh);
- tcg_gen_and_vec(vece, d, d, m);
- tcg_gen_or_vec(vece, d, d, t);
+ tcg_gen_shli_vec(vece, t, a, sh);
+ tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK(0, sh));
+ tcg_gen_and_vec(vece, d, d, m);
+ tcg_gen_or_vec(vece, d, d, t);
- tcg_temp_free_vec(t);
- tcg_temp_free_vec(m);
- }
+ tcg_temp_free_vec(t);
+ tcg_temp_free_vec(m);
}
-static const TCGOpcode vecop_list_sli[] = { INDEX_op_shli_vec, 0 };
+void gen_gvec_sli(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ int64_t shift, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = { INDEX_op_shli_vec, 0 };
+ const GVecGen2i ops[4] = {
+ { .fni8 = gen_shl8_ins_i64,
+ .fniv = gen_shl_ins_vec,
+ .fno = gen_helper_gvec_sli_b,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni8 = gen_shl16_ins_i64,
+ .fniv = gen_shl_ins_vec,
+ .fno = gen_helper_gvec_sli_h,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_shl32_ins_i32,
+ .fniv = gen_shl_ins_vec,
+ .fno = gen_helper_gvec_sli_s,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_shl64_ins_i64,
+ .fniv = gen_shl_ins_vec,
+ .fno = gen_helper_gvec_sli_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
-const GVecGen2i sli_op[4] = {
- { .fni8 = gen_shl8_ins_i64,
- .fniv = gen_shl_ins_vec,
- .load_dest = true,
- .opt_opc = vecop_list_sli,
- .vece = MO_8 },
- { .fni8 = gen_shl16_ins_i64,
- .fniv = gen_shl_ins_vec,
- .load_dest = true,
- .opt_opc = vecop_list_sli,
- .vece = MO_16 },
- { .fni4 = gen_shl32_ins_i32,
- .fniv = gen_shl_ins_vec,
- .load_dest = true,
- .opt_opc = vecop_list_sli,
- .vece = MO_32 },
- { .fni8 = gen_shl64_ins_i64,
- .fniv = gen_shl_ins_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .load_dest = true,
- .opt_opc = vecop_list_sli,
- .vece = MO_64 },
-};
+ /* tszimm encoding produces immediates in the range [0..esize-1]. */
+ tcg_debug_assert(shift >= 0);
+ tcg_debug_assert(shift < (8 << vece));
+
+ if (shift == 0) {
+ tcg_gen_gvec_mov(vece, rd_ofs, rm_ofs, opr_sz, max_sz);
+ } else {
+ tcg_gen_gvec_2i(rd_ofs, rm_ofs, opr_sz, max_sz, shift, &ops[vece]);
+ }
+}
static void gen_mla8_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
{
@@ -5715,20 +5743,14 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
/* Right shift comes here negative. */
shift = -shift;
- /* Shift out of range leaves destination unchanged. */
- if (shift < 8 << size) {
- tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size,
- shift, &sri_op[size]);
- }
+ gen_gvec_sri(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
return 0;
case 5: /* VSHL, VSLI */
if (u) { /* VSLI */
- /* Shift out of range leaves destination unchanged. */
- if (shift < 8 << size) {
- tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size,
- vec_size, shift, &sli_op[size]);
- }
+ gen_gvec_sli(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
} else { /* VSHL */
/* Shifts larger than the element size are
* architecturally valid and results in zero.
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index fd8b2bff493..096fea67efc 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -974,6 +974,44 @@ DO_RSRA(gvec_ursra_d, uint64_t)
#undef DO_RSRA
+#define DO_SRI(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ int shift = simd_data(desc); \
+ TYPE *d = vd, *n = vn; \
+ for (i = 0; i < oprsz / sizeof(TYPE); i++) { \
+ d[i] = deposit64(d[i], 0, sizeof(TYPE) * 8 - shift, n[i] >> shift); \
+ } \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
+}
+
+DO_SRI(gvec_sri_b, uint8_t)
+DO_SRI(gvec_sri_h, uint16_t)
+DO_SRI(gvec_sri_s, uint32_t)
+DO_SRI(gvec_sri_d, uint64_t)
+
+#undef DO_SRI
+
+#define DO_SLI(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
+{ \
+ intptr_t i, oprsz = simd_oprsz(desc); \
+ int shift = simd_data(desc); \
+ TYPE *d = vd, *n = vn; \
+ for (i = 0; i < oprsz / sizeof(TYPE); i++) { \
+ d[i] = deposit64(d[i], shift, sizeof(TYPE) * 8 - shift, n[i]); \
+ } \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
+}
+
+DO_SLI(gvec_sli_b, uint8_t)
+DO_SLI(gvec_sli_h, uint16_t)
+DO_SLI(gvec_sli_s, uint32_t)
+DO_SLI(gvec_sli_d, uint64_t)
+
+#undef DO_SLI
+
/*
* Convert float16 to float32, raising no exceptions and
* preserving exceptional values, including SNaN.
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 05/45] target/arm: Remove unnecessary range check for VSHL
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (3 preceding siblings ...)
2020-05-14 14:20 ` [PULL 04/45] target/arm: Create gen_gvec_{sri,sli} Peter Maydell
@ 2020-05-14 14:20 ` Peter Maydell
2020-05-14 14:20 ` [PULL 06/45] target/arm: Tidy handle_vec_simd_shri Peter Maydell
` (40 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
In 1dc8425e551, while converting to gvec, I added an extra range check
against the shift count. This was unnecessary because the encoding of
the shift count produces 0 to the element size - 1.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 3c489852dce..2eec689c5ed 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5752,16 +5752,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
gen_gvec_sli(size, rd_ofs, rm_ofs, shift,
vec_size, vec_size);
} else { /* VSHL */
- /* Shifts larger than the element size are
- * architecturally valid and results in zero.
- */
- if (shift >= 8 << size) {
- tcg_gen_gvec_dup_imm(size, rd_ofs,
- vec_size, vec_size, 0);
- } else {
- tcg_gen_gvec_shli(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- }
+ tcg_gen_gvec_shli(size, rd_ofs, rm_ofs, shift,
+ vec_size, vec_size);
}
return 0;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 06/45] target/arm: Tidy handle_vec_simd_shri
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (4 preceding siblings ...)
2020-05-14 14:20 ` [PULL 05/45] target/arm: Remove unnecessary range check for VSHL Peter Maydell
@ 2020-05-14 14:20 ` Peter Maydell
2020-05-14 14:21 ` [PULL 07/45] target/arm: Create gen_gvec_{ceq,clt,cle,cgt,cge}0 Peter Maydell
` (39 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:20 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Now that we've converted all cases to gvec, there is quite a bit
of dead code at the end of the function. Remove it.
Sink the call to gen_gvec_fn2i to the end, loading a function
pointer within the switch statement.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate-a64.c | 56 ++++++++++----------------------------
1 file changed, 14 insertions(+), 42 deletions(-)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 2d7dad6c3f2..d5e77f34a7c 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -10155,16 +10155,7 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
int size = 32 - clz32(immh) - 1;
int immhb = immh << 3 | immb;
int shift = 2 * (8 << size) - immhb;
- bool accumulate = false;
- int dsize = is_q ? 128 : 64;
- int esize = 8 << size;
- int elements = dsize/esize;
- MemOp memop = size | (is_u ? 0 : MO_SIGN);
- TCGv_i64 tcg_rn = new_tmp_a64(s);
- TCGv_i64 tcg_rd = new_tmp_a64(s);
- TCGv_i64 tcg_round;
- uint64_t round_const;
- int i;
+ GVecGen2iFn *gvec_fn;
if (extract32(immh, 3, 1) && !is_q) {
unallocated_encoding(s);
@@ -10178,13 +10169,12 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
switch (opcode) {
case 0x02: /* SSRA / USRA (accumulate) */
- gen_gvec_fn2i(s, is_q, rd, rn, shift,
- is_u ? gen_gvec_usra : gen_gvec_ssra, size);
- return;
+ gvec_fn = is_u ? gen_gvec_usra : gen_gvec_ssra;
+ break;
case 0x08: /* SRI */
- gen_gvec_fn2i(s, is_q, rd, rn, shift, gen_gvec_sri, size);
- return;
+ gvec_fn = gen_gvec_sri;
+ break;
case 0x00: /* SSHR / USHR */
if (is_u) {
@@ -10192,49 +10182,31 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
/* Shift count the same size as element size produces zero. */
tcg_gen_gvec_dup_imm(size, vec_full_reg_offset(s, rd),
is_q ? 16 : 8, vec_full_reg_size(s), 0);
- } else {
- gen_gvec_fn2i(s, is_q, rd, rn, shift, tcg_gen_gvec_shri, size);
+ return;
}
+ gvec_fn = tcg_gen_gvec_shri;
} else {
/* Shift count the same size as element size produces all sign. */
if (shift == 8 << size) {
shift -= 1;
}
- gen_gvec_fn2i(s, is_q, rd, rn, shift, tcg_gen_gvec_sari, size);
+ gvec_fn = tcg_gen_gvec_sari;
}
- return;
+ break;
case 0x04: /* SRSHR / URSHR (rounding) */
- gen_gvec_fn2i(s, is_q, rd, rn, shift,
- is_u ? gen_gvec_urshr : gen_gvec_srshr, size);
- return;
+ gvec_fn = is_u ? gen_gvec_urshr : gen_gvec_srshr;
+ break;
case 0x06: /* SRSRA / URSRA (accum + rounding) */
- gen_gvec_fn2i(s, is_q, rd, rn, shift,
- is_u ? gen_gvec_ursra : gen_gvec_srsra, size);
- return;
+ gvec_fn = is_u ? gen_gvec_ursra : gen_gvec_srsra;
+ break;
default:
g_assert_not_reached();
}
- round_const = 1ULL << (shift - 1);
- tcg_round = tcg_const_i64(round_const);
-
- for (i = 0; i < elements; i++) {
- read_vec_element(s, tcg_rn, rn, i, memop);
- if (accumulate) {
- read_vec_element(s, tcg_rd, rd, i, memop);
- }
-
- handle_shri_with_rndacc(tcg_rd, tcg_rn, tcg_round,
- accumulate, is_u, size, shift);
-
- write_vec_element(s, tcg_rd, rd, i, size);
- }
- tcg_temp_free_i64(tcg_round);
-
- clear_vec_high(s, is_q, rd);
+ gen_gvec_fn2i(s, is_q, rd, rn, shift, gvec_fn, size);
}
/* SHL/SLI - Vector shift left */
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 07/45] target/arm: Create gen_gvec_{ceq,clt,cle,cgt,cge}0
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (5 preceding siblings ...)
2020-05-14 14:20 ` [PULL 06/45] target/arm: Tidy handle_vec_simd_shri Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 08/45] target/arm: Create gen_gvec_{mla,mls} Peter Maydell
` (38 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Provide a functional interface for the vector expansion.
This fits better with the existing set of helpers that
we provide for other operations.
Macro-ize the 5 nearly identical comparisons.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.h | 16 ++-
target/arm/translate-a64.c | 22 ++--
target/arm/translate.c | 254 ++++++++-----------------------------
3 files changed, 74 insertions(+), 218 deletions(-)
diff --git a/target/arm/translate.h b/target/arm/translate.h
index fa5c3f12b96..e35c812cc5e 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -275,11 +275,17 @@ static inline void gen_swstep_exception(DisasContext *s, int isv, int ex)
uint64_t vfp_expand_imm(int size, uint8_t imm8);
/* Vector operations shared between ARM and AArch64. */
-extern const GVecGen2 ceq0_op[4];
-extern const GVecGen2 clt0_op[4];
-extern const GVecGen2 cgt0_op[4];
-extern const GVecGen2 cle0_op[4];
-extern const GVecGen2 cge0_op[4];
+void gen_gvec_ceq0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_clt0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_cgt0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_cle0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_cge0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
+ uint32_t opr_sz, uint32_t max_sz);
+
extern const GVecGen3 mla_op[4];
extern const GVecGen3 mls_op[4];
extern const GVecGen3 cmtst_op[4];
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index d5e77f34a7c..fef93dc27af 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -577,14 +577,6 @@ static void gen_gvec_fn4(DisasContext *s, bool is_q, int rd, int rn, int rm,
is_q ? 16 : 8, vec_full_reg_size(s));
}
-/* Expand a 2-operand AdvSIMD vector operation using an op descriptor. */
-static void gen_gvec_op2(DisasContext *s, bool is_q, int rd,
- int rn, const GVecGen2 *gvec_op)
-{
- tcg_gen_gvec_2(vec_full_reg_offset(s, rd), vec_full_reg_offset(s, rn),
- is_q ? 16 : 8, vec_full_reg_size(s), gvec_op);
-}
-
/* Expand a 3-operand AdvSIMD vector operation using an op descriptor. */
static void gen_gvec_op3(DisasContext *s, bool is_q, int rd,
int rn, int rm, const GVecGen3 *gvec_op)
@@ -12310,13 +12302,21 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
}
break;
case 0x8: /* CMGT, CMGE */
- gen_gvec_op2(s, is_q, rd, rn, u ? &cge0_op[size] : &cgt0_op[size]);
+ if (u) {
+ gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_cge0, size);
+ } else {
+ gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_cgt0, size);
+ }
return;
case 0x9: /* CMEQ, CMLE */
- gen_gvec_op2(s, is_q, rd, rn, u ? &cle0_op[size] : &ceq0_op[size]);
+ if (u) {
+ gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_cle0, size);
+ } else {
+ gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_ceq0, size);
+ }
return;
case 0xa: /* CMLT */
- gen_gvec_op2(s, is_q, rd, rn, &clt0_op[size]);
+ gen_gvec_fn2(s, is_q, rd, rn, gen_gvec_clt0, size);
return;
case 0xb:
if (u) { /* ABS, NEG */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 2eec689c5ed..010a158e632 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -3645,204 +3645,59 @@ static int do_v81_helper(DisasContext *s, gen_helper_gvec_3_ptr *fn,
return 1;
}
-static void gen_ceq0_i32(TCGv_i32 d, TCGv_i32 a)
-{
- tcg_gen_setcondi_i32(TCG_COND_EQ, d, a, 0);
- tcg_gen_neg_i32(d, d);
-}
-
-static void gen_ceq0_i64(TCGv_i64 d, TCGv_i64 a)
-{
- tcg_gen_setcondi_i64(TCG_COND_EQ, d, a, 0);
- tcg_gen_neg_i64(d, d);
-}
-
-static void gen_ceq0_vec(unsigned vece, TCGv_vec d, TCGv_vec a)
-{
- TCGv_vec zero = tcg_const_zeros_vec_matching(d);
- tcg_gen_cmp_vec(TCG_COND_EQ, vece, d, a, zero);
- tcg_temp_free_vec(zero);
-}
+#define GEN_CMP0(NAME, COND) \
+ static void gen_##NAME##0_i32(TCGv_i32 d, TCGv_i32 a) \
+ { \
+ tcg_gen_setcondi_i32(COND, d, a, 0); \
+ tcg_gen_neg_i32(d, d); \
+ } \
+ static void gen_##NAME##0_i64(TCGv_i64 d, TCGv_i64 a) \
+ { \
+ tcg_gen_setcondi_i64(COND, d, a, 0); \
+ tcg_gen_neg_i64(d, d); \
+ } \
+ static void gen_##NAME##0_vec(unsigned vece, TCGv_vec d, TCGv_vec a) \
+ { \
+ TCGv_vec zero = tcg_const_zeros_vec_matching(d); \
+ tcg_gen_cmp_vec(COND, vece, d, a, zero); \
+ tcg_temp_free_vec(zero); \
+ } \
+ void gen_gvec_##NAME##0(unsigned vece, uint32_t d, uint32_t m, \
+ uint32_t opr_sz, uint32_t max_sz) \
+ { \
+ const GVecGen2 op[4] = { \
+ { .fno = gen_helper_gvec_##NAME##0_b, \
+ .fniv = gen_##NAME##0_vec, \
+ .opt_opc = vecop_list_cmp, \
+ .vece = MO_8 }, \
+ { .fno = gen_helper_gvec_##NAME##0_h, \
+ .fniv = gen_##NAME##0_vec, \
+ .opt_opc = vecop_list_cmp, \
+ .vece = MO_16 }, \
+ { .fni4 = gen_##NAME##0_i32, \
+ .fniv = gen_##NAME##0_vec, \
+ .opt_opc = vecop_list_cmp, \
+ .vece = MO_32 }, \
+ { .fni8 = gen_##NAME##0_i64, \
+ .fniv = gen_##NAME##0_vec, \
+ .opt_opc = vecop_list_cmp, \
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64, \
+ .vece = MO_64 }, \
+ }; \
+ tcg_gen_gvec_2(d, m, opr_sz, max_sz, &op[vece]); \
+ }
static const TCGOpcode vecop_list_cmp[] = {
INDEX_op_cmp_vec, 0
};
-const GVecGen2 ceq0_op[4] = {
- { .fno = gen_helper_gvec_ceq0_b,
- .fniv = gen_ceq0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_8 },
- { .fno = gen_helper_gvec_ceq0_h,
- .fniv = gen_ceq0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_16 },
- { .fni4 = gen_ceq0_i32,
- .fniv = gen_ceq0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_32 },
- { .fni8 = gen_ceq0_i64,
- .fniv = gen_ceq0_vec,
- .opt_opc = vecop_list_cmp,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .vece = MO_64 },
-};
+GEN_CMP0(ceq, TCG_COND_EQ)
+GEN_CMP0(cle, TCG_COND_LE)
+GEN_CMP0(cge, TCG_COND_GE)
+GEN_CMP0(clt, TCG_COND_LT)
+GEN_CMP0(cgt, TCG_COND_GT)
-static void gen_cle0_i32(TCGv_i32 d, TCGv_i32 a)
-{
- tcg_gen_setcondi_i32(TCG_COND_LE, d, a, 0);
- tcg_gen_neg_i32(d, d);
-}
-
-static void gen_cle0_i64(TCGv_i64 d, TCGv_i64 a)
-{
- tcg_gen_setcondi_i64(TCG_COND_LE, d, a, 0);
- tcg_gen_neg_i64(d, d);
-}
-
-static void gen_cle0_vec(unsigned vece, TCGv_vec d, TCGv_vec a)
-{
- TCGv_vec zero = tcg_const_zeros_vec_matching(d);
- tcg_gen_cmp_vec(TCG_COND_LE, vece, d, a, zero);
- tcg_temp_free_vec(zero);
-}
-
-const GVecGen2 cle0_op[4] = {
- { .fno = gen_helper_gvec_cle0_b,
- .fniv = gen_cle0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_8 },
- { .fno = gen_helper_gvec_cle0_h,
- .fniv = gen_cle0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_16 },
- { .fni4 = gen_cle0_i32,
- .fniv = gen_cle0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_32 },
- { .fni8 = gen_cle0_i64,
- .fniv = gen_cle0_vec,
- .opt_opc = vecop_list_cmp,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .vece = MO_64 },
-};
-
-static void gen_cge0_i32(TCGv_i32 d, TCGv_i32 a)
-{
- tcg_gen_setcondi_i32(TCG_COND_GE, d, a, 0);
- tcg_gen_neg_i32(d, d);
-}
-
-static void gen_cge0_i64(TCGv_i64 d, TCGv_i64 a)
-{
- tcg_gen_setcondi_i64(TCG_COND_GE, d, a, 0);
- tcg_gen_neg_i64(d, d);
-}
-
-static void gen_cge0_vec(unsigned vece, TCGv_vec d, TCGv_vec a)
-{
- TCGv_vec zero = tcg_const_zeros_vec_matching(d);
- tcg_gen_cmp_vec(TCG_COND_GE, vece, d, a, zero);
- tcg_temp_free_vec(zero);
-}
-
-const GVecGen2 cge0_op[4] = {
- { .fno = gen_helper_gvec_cge0_b,
- .fniv = gen_cge0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_8 },
- { .fno = gen_helper_gvec_cge0_h,
- .fniv = gen_cge0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_16 },
- { .fni4 = gen_cge0_i32,
- .fniv = gen_cge0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_32 },
- { .fni8 = gen_cge0_i64,
- .fniv = gen_cge0_vec,
- .opt_opc = vecop_list_cmp,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .vece = MO_64 },
-};
-
-static void gen_clt0_i32(TCGv_i32 d, TCGv_i32 a)
-{
- tcg_gen_setcondi_i32(TCG_COND_LT, d, a, 0);
- tcg_gen_neg_i32(d, d);
-}
-
-static void gen_clt0_i64(TCGv_i64 d, TCGv_i64 a)
-{
- tcg_gen_setcondi_i64(TCG_COND_LT, d, a, 0);
- tcg_gen_neg_i64(d, d);
-}
-
-static void gen_clt0_vec(unsigned vece, TCGv_vec d, TCGv_vec a)
-{
- TCGv_vec zero = tcg_const_zeros_vec_matching(d);
- tcg_gen_cmp_vec(TCG_COND_LT, vece, d, a, zero);
- tcg_temp_free_vec(zero);
-}
-
-const GVecGen2 clt0_op[4] = {
- { .fno = gen_helper_gvec_clt0_b,
- .fniv = gen_clt0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_8 },
- { .fno = gen_helper_gvec_clt0_h,
- .fniv = gen_clt0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_16 },
- { .fni4 = gen_clt0_i32,
- .fniv = gen_clt0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_32 },
- { .fni8 = gen_clt0_i64,
- .fniv = gen_clt0_vec,
- .opt_opc = vecop_list_cmp,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .vece = MO_64 },
-};
-
-static void gen_cgt0_i32(TCGv_i32 d, TCGv_i32 a)
-{
- tcg_gen_setcondi_i32(TCG_COND_GT, d, a, 0);
- tcg_gen_neg_i32(d, d);
-}
-
-static void gen_cgt0_i64(TCGv_i64 d, TCGv_i64 a)
-{
- tcg_gen_setcondi_i64(TCG_COND_GT, d, a, 0);
- tcg_gen_neg_i64(d, d);
-}
-
-static void gen_cgt0_vec(unsigned vece, TCGv_vec d, TCGv_vec a)
-{
- TCGv_vec zero = tcg_const_zeros_vec_matching(d);
- tcg_gen_cmp_vec(TCG_COND_GT, vece, d, a, zero);
- tcg_temp_free_vec(zero);
-}
-
-const GVecGen2 cgt0_op[4] = {
- { .fno = gen_helper_gvec_cgt0_b,
- .fniv = gen_cgt0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_8 },
- { .fno = gen_helper_gvec_cgt0_h,
- .fniv = gen_cgt0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_16 },
- { .fni4 = gen_cgt0_i32,
- .fniv = gen_cgt0_vec,
- .opt_opc = vecop_list_cmp,
- .vece = MO_32 },
- { .fni8 = gen_cgt0_i64,
- .fniv = gen_cgt0_vec,
- .opt_opc = vecop_list_cmp,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .vece = MO_64 },
-};
+#undef GEN_CMP0
static void gen_ssra8_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift)
{
@@ -6772,24 +6627,19 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break;
case NEON_2RM_VCEQ0:
- tcg_gen_gvec_2(rd_ofs, rm_ofs, vec_size,
- vec_size, &ceq0_op[size]);
+ gen_gvec_ceq0(size, rd_ofs, rm_ofs, vec_size, vec_size);
break;
case NEON_2RM_VCGT0:
- tcg_gen_gvec_2(rd_ofs, rm_ofs, vec_size,
- vec_size, &cgt0_op[size]);
+ gen_gvec_cgt0(size, rd_ofs, rm_ofs, vec_size, vec_size);
break;
case NEON_2RM_VCLE0:
- tcg_gen_gvec_2(rd_ofs, rm_ofs, vec_size,
- vec_size, &cle0_op[size]);
+ gen_gvec_cle0(size, rd_ofs, rm_ofs, vec_size, vec_size);
break;
case NEON_2RM_VCGE0:
- tcg_gen_gvec_2(rd_ofs, rm_ofs, vec_size,
- vec_size, &cge0_op[size]);
+ gen_gvec_cge0(size, rd_ofs, rm_ofs, vec_size, vec_size);
break;
case NEON_2RM_VCLT0:
- tcg_gen_gvec_2(rd_ofs, rm_ofs, vec_size,
- vec_size, &clt0_op[size]);
+ gen_gvec_clt0(size, rd_ofs, rm_ofs, vec_size, vec_size);
break;
default:
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 08/45] target/arm: Create gen_gvec_{mla,mls}
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (6 preceding siblings ...)
2020-05-14 14:21 ` [PULL 07/45] target/arm: Create gen_gvec_{ceq,clt,cle,cgt,cge}0 Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 09/45] target/arm: Swap argument order for VSHL during decode Peter Maydell
` (37 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Provide a functional interface for the vector expansion.
This fits better with the existing set of helpers that
we provide for other operations.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.h | 7 +-
target/arm/translate-a64.c | 4 +-
target/arm/translate-neon.inc.c | 16 +----
target/arm/translate.c | 117 +++++++++++++++++---------------
4 files changed, 71 insertions(+), 73 deletions(-)
diff --git a/target/arm/translate.h b/target/arm/translate.h
index e35c812cc5e..9354ceba357 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -286,8 +286,11 @@ void gen_gvec_cle0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
void gen_gvec_cge0(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
uint32_t opr_sz, uint32_t max_sz);
-extern const GVecGen3 mla_op[4];
-extern const GVecGen3 mls_op[4];
+void gen_gvec_mla(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_mls(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
extern const GVecGen3 cmtst_op[4];
extern const GVecGen3 sshl_op[4];
extern const GVecGen3 ushl_op[4];
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index fef93dc27af..ab9df12e44d 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -11226,9 +11226,9 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
return;
case 0x12: /* MLA, MLS */
if (u) {
- gen_gvec_op3(s, is_q, rd, rn, rm, &mls_op[size]);
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_mls, size);
} else {
- gen_gvec_op3(s, is_q, rd, rn, rm, &mla_op[size]);
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_mla, size);
}
return;
case 0x11:
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 50b77b6d714..aefeff498a6 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -632,6 +632,8 @@ DO_3SAME_NO_SZ_3(VMAX_U, tcg_gen_gvec_umax)
DO_3SAME_NO_SZ_3(VMIN_S, tcg_gen_gvec_smin)
DO_3SAME_NO_SZ_3(VMIN_U, tcg_gen_gvec_umin)
DO_3SAME_NO_SZ_3(VMUL, tcg_gen_gvec_mul)
+DO_3SAME_NO_SZ_3(VMLA, gen_gvec_mla)
+DO_3SAME_NO_SZ_3(VMLS, gen_gvec_mls)
#define DO_3SAME_CMP(INSN, COND) \
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
@@ -685,20 +687,6 @@ static bool trans_VMUL_p_3s(DisasContext *s, arg_3same *a)
return do_3same(s, a, gen_VMUL_p_3s);
}
-#define DO_3SAME_GVEC3_NO_SZ_3(INSN, OPARRAY) \
- static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
- uint32_t rn_ofs, uint32_t rm_ofs, \
- uint32_t oprsz, uint32_t maxsz) \
- { \
- tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, \
- oprsz, maxsz, &OPARRAY[vece]); \
- } \
- DO_3SAME_NO_SZ_3(INSN, gen_##INSN##_3s)
-
-
-DO_3SAME_GVEC3_NO_SZ_3(VMLA, mla_op)
-DO_3SAME_GVEC3_NO_SZ_3(VMLS, mls_op)
-
#define DO_3SAME_GVEC3_SHIFT(INSN, OPARRAY) \
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
uint32_t rn_ofs, uint32_t rm_ofs, \
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 010a158e632..face89a1f71 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -4520,62 +4520,69 @@ static void gen_mls_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
/* Note that while NEON does not support VMLA and VMLS as 64-bit ops,
* these tables are shared with AArch64 which does support them.
*/
+void gen_gvec_mla(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_mul_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fni4 = gen_mla8_i32,
+ .fniv = gen_mla_vec,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni4 = gen_mla16_i32,
+ .fniv = gen_mla_vec,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_mla32_i32,
+ .fniv = gen_mla_vec,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_mla64_i64,
+ .fniv = gen_mla_vec,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
-static const TCGOpcode vecop_list_mla[] = {
- INDEX_op_mul_vec, INDEX_op_add_vec, 0
-};
-
-static const TCGOpcode vecop_list_mls[] = {
- INDEX_op_mul_vec, INDEX_op_sub_vec, 0
-};
-
-const GVecGen3 mla_op[4] = {
- { .fni4 = gen_mla8_i32,
- .fniv = gen_mla_vec,
- .load_dest = true,
- .opt_opc = vecop_list_mla,
- .vece = MO_8 },
- { .fni4 = gen_mla16_i32,
- .fniv = gen_mla_vec,
- .load_dest = true,
- .opt_opc = vecop_list_mla,
- .vece = MO_16 },
- { .fni4 = gen_mla32_i32,
- .fniv = gen_mla_vec,
- .load_dest = true,
- .opt_opc = vecop_list_mla,
- .vece = MO_32 },
- { .fni8 = gen_mla64_i64,
- .fniv = gen_mla_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .load_dest = true,
- .opt_opc = vecop_list_mla,
- .vece = MO_64 },
-};
-
-const GVecGen3 mls_op[4] = {
- { .fni4 = gen_mls8_i32,
- .fniv = gen_mls_vec,
- .load_dest = true,
- .opt_opc = vecop_list_mls,
- .vece = MO_8 },
- { .fni4 = gen_mls16_i32,
- .fniv = gen_mls_vec,
- .load_dest = true,
- .opt_opc = vecop_list_mls,
- .vece = MO_16 },
- { .fni4 = gen_mls32_i32,
- .fniv = gen_mls_vec,
- .load_dest = true,
- .opt_opc = vecop_list_mls,
- .vece = MO_32 },
- { .fni8 = gen_mls64_i64,
- .fniv = gen_mls_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .load_dest = true,
- .opt_opc = vecop_list_mls,
- .vece = MO_64 },
-};
+void gen_gvec_mls(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_mul_vec, INDEX_op_sub_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fni4 = gen_mls8_i32,
+ .fniv = gen_mls_vec,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni4 = gen_mls16_i32,
+ .fniv = gen_mls_vec,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_mls32_i32,
+ .fniv = gen_mls_vec,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_mls64_i64,
+ .fniv = gen_mls_vec,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .load_dest = true,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
/* CMTST : test is "if (X & Y != 0)". */
static void gen_cmtst_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 09/45] target/arm: Swap argument order for VSHL during decode
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (7 preceding siblings ...)
2020-05-14 14:21 ` [PULL 08/45] target/arm: Create gen_gvec_{mla,mls} Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 10/45] target/arm: Create gen_gvec_{cmtst,ushl,sshl} Peter Maydell
` (36 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Rather than perform the argument swap during code generation,
perform it during decode. This means it doesn't have to be
special cased later, and we can share code with aarch64 code
generation. Hopefully the decode comment addresses any confusion
that might arise in between.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/neon-dp.decode | 17 +++++++++++++++--
target/arm/translate-neon.inc.c | 3 +--
2 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index ec3a92fe753..593f7fff03d 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -65,8 +65,21 @@ VCGT_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 0 .... @3same
VCGE_S_3s 1111 001 0 0 . .. .... .... 0011 . . . 1 .... @3same
VCGE_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 1 .... @3same
-VSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 0 .... @3same
-VSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same
+# The _rev suffix indicates that Vn and Vm are reversed. This is
+# the case for shifts. In the Arm ARM these insns are documented
+# with the Vm and Vn fields in their usual places, but in the
+# assembly the operands are listed "backwards", ie in the order
+# Dd, Dm, Dn where other insns use Dd, Dn, Dm. For QEMU we choose
+# to consider Vm and Vn as being in different fields in the insn,
+# which allows us to avoid special-casing shifts in the trans_
+# function code. We would otherwise need to manually swap the operands
+# over to call Neon helper functions that are shared with AArch64,
+# which does not have this odd reversed-operand situation.
+@3same_rev .... ... . . . size:2 .... .... .... . q:1 . . .... \
+ &3same vn=%vm_dp vm=%vn_dp vd=%vd_dp
+
+VSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 0 .... @3same_rev
+VSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same_rev
VMAX_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 0 .... @3same
VMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index aefeff498a6..416302bcc78 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -692,8 +692,7 @@ static bool trans_VMUL_p_3s(DisasContext *s, arg_3same *a)
uint32_t rn_ofs, uint32_t rm_ofs, \
uint32_t oprsz, uint32_t maxsz) \
{ \
- /* Note the operation is vshl vd,vm,vn */ \
- tcg_gen_gvec_3(rd_ofs, rm_ofs, rn_ofs, \
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, \
oprsz, maxsz, &OPARRAY[vece]); \
} \
DO_3SAME(INSN, gen_##INSN##_3s)
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 10/45] target/arm: Create gen_gvec_{cmtst,ushl,sshl}
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (8 preceding siblings ...)
2020-05-14 14:21 ` [PULL 09/45] target/arm: Swap argument order for VSHL during decode Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 11/45] target/arm: Create gen_gvec_{uqadd, sqadd, uqsub, sqsub} Peter Maydell
` (35 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Provide a functional interface for the vector expansion.
This fits better with the existing set of helpers that
we provide for other operations.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.h | 10 ++-
target/arm/translate-a64.c | 18 ++--
target/arm/translate-neon.inc.c | 23 +----
target/arm/translate.c | 146 +++++++++++++++++---------------
4 files changed, 95 insertions(+), 102 deletions(-)
diff --git a/target/arm/translate.h b/target/arm/translate.h
index 9354ceba357..a02a54cabf7 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -291,9 +291,13 @@ void gen_gvec_mla(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
void gen_gvec_mls(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
-extern const GVecGen3 cmtst_op[4];
-extern const GVecGen3 sshl_op[4];
-extern const GVecGen3 ushl_op[4];
+void gen_gvec_cmtst(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sshl(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_ushl(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
extern const GVecGen4 uqadd_op[4];
extern const GVecGen4 sqadd_op[4];
extern const GVecGen4 uqsub_op[4];
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index ab9df12e44d..3956c19ed8b 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -577,15 +577,6 @@ static void gen_gvec_fn4(DisasContext *s, bool is_q, int rd, int rn, int rm,
is_q ? 16 : 8, vec_full_reg_size(s));
}
-/* Expand a 3-operand AdvSIMD vector operation using an op descriptor. */
-static void gen_gvec_op3(DisasContext *s, bool is_q, int rd,
- int rn, int rm, const GVecGen3 *gvec_op)
-{
- tcg_gen_gvec_3(vec_full_reg_offset(s, rd), vec_full_reg_offset(s, rn),
- vec_full_reg_offset(s, rm), is_q ? 16 : 8,
- vec_full_reg_size(s), gvec_op);
-}
-
/* Expand a 3-operand operation using an out-of-line helper. */
static void gen_gvec_op3_ool(DisasContext *s, bool is_q, int rd,
int rn, int rm, int data, gen_helper_gvec_3 *fn)
@@ -11193,8 +11184,11 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
(u ? uqsub_op : sqsub_op) + size);
return;
case 0x08: /* SSHL, USHL */
- gen_gvec_op3(s, is_q, rd, rn, rm,
- u ? &ushl_op[size] : &sshl_op[size]);
+ if (u) {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_ushl, size);
+ } else {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sshl, size);
+ }
return;
case 0x0c: /* SMAX, UMAX */
if (u) {
@@ -11233,7 +11227,7 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
return;
case 0x11:
if (!u) { /* CMTST */
- gen_gvec_op3(s, is_q, rd, rn, rm, &cmtst_op[size]);
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_cmtst, size);
return;
}
/* else CMEQ */
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 416302bcc78..e16475c212e 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -603,6 +603,8 @@ DO_3SAME(VBIC, tcg_gen_gvec_andc)
DO_3SAME(VORR, tcg_gen_gvec_or)
DO_3SAME(VORN, tcg_gen_gvec_orc)
DO_3SAME(VEOR, tcg_gen_gvec_xor)
+DO_3SAME(VSHL_S, gen_gvec_sshl)
+DO_3SAME(VSHL_U, gen_gvec_ushl)
/* These insns are all gvec_bitsel but with the inputs in various orders. */
#define DO_3SAME_BITSEL(INSN, O1, O2, O3) \
@@ -634,6 +636,7 @@ DO_3SAME_NO_SZ_3(VMIN_U, tcg_gen_gvec_umin)
DO_3SAME_NO_SZ_3(VMUL, tcg_gen_gvec_mul)
DO_3SAME_NO_SZ_3(VMLA, gen_gvec_mla)
DO_3SAME_NO_SZ_3(VMLS, gen_gvec_mls)
+DO_3SAME_NO_SZ_3(VTST, gen_gvec_cmtst)
#define DO_3SAME_CMP(INSN, COND) \
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
@@ -650,13 +653,6 @@ DO_3SAME_CMP(VCGE_S, TCG_COND_GE)
DO_3SAME_CMP(VCGE_U, TCG_COND_GEU)
DO_3SAME_CMP(VCEQ, TCG_COND_EQ)
-static void gen_VTST_3s(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
- uint32_t rm_ofs, uint32_t oprsz, uint32_t maxsz)
-{
- tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &cmtst_op[vece]);
-}
-DO_3SAME_NO_SZ_3(VTST, gen_VTST_3s)
-
#define DO_3SAME_GVEC4(INSN, OPARRAY) \
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
uint32_t rn_ofs, uint32_t rm_ofs, \
@@ -686,16 +682,3 @@ static bool trans_VMUL_p_3s(DisasContext *s, arg_3same *a)
}
return do_3same(s, a, gen_VMUL_p_3s);
}
-
-#define DO_3SAME_GVEC3_SHIFT(INSN, OPARRAY) \
- static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
- uint32_t rn_ofs, uint32_t rm_ofs, \
- uint32_t oprsz, uint32_t maxsz) \
- { \
- tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, \
- oprsz, maxsz, &OPARRAY[vece]); \
- } \
- DO_3SAME(INSN, gen_##INSN##_3s)
-
-DO_3SAME_GVEC3_SHIFT(VSHL_S, sshl_op)
-DO_3SAME_GVEC3_SHIFT(VSHL_U, ushl_op)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index face89a1f71..df91ff73e3d 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -4606,27 +4606,31 @@ static void gen_cmtst_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
tcg_gen_cmp_vec(TCG_COND_NE, vece, d, d, a);
}
-static const TCGOpcode vecop_list_cmtst[] = { INDEX_op_cmp_vec, 0 };
-
-const GVecGen3 cmtst_op[4] = {
- { .fni4 = gen_helper_neon_tst_u8,
- .fniv = gen_cmtst_vec,
- .opt_opc = vecop_list_cmtst,
- .vece = MO_8 },
- { .fni4 = gen_helper_neon_tst_u16,
- .fniv = gen_cmtst_vec,
- .opt_opc = vecop_list_cmtst,
- .vece = MO_16 },
- { .fni4 = gen_cmtst_i32,
- .fniv = gen_cmtst_vec,
- .opt_opc = vecop_list_cmtst,
- .vece = MO_32 },
- { .fni8 = gen_cmtst_i64,
- .fniv = gen_cmtst_vec,
- .prefer_i64 = TCG_TARGET_REG_BITS == 64,
- .opt_opc = vecop_list_cmtst,
- .vece = MO_64 },
-};
+void gen_gvec_cmtst(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = { INDEX_op_cmp_vec, 0 };
+ static const GVecGen3 ops[4] = {
+ { .fni4 = gen_helper_neon_tst_u8,
+ .fniv = gen_cmtst_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fni4 = gen_helper_neon_tst_u16,
+ .fniv = gen_cmtst_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_cmtst_i32,
+ .fniv = gen_cmtst_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_cmtst_i64,
+ .fniv = gen_cmtst_vec,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
void gen_ushl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift)
{
@@ -4744,29 +4748,33 @@ static void gen_ushl_vec(unsigned vece, TCGv_vec dst,
tcg_temp_free_vec(rsh);
}
-static const TCGOpcode ushl_list[] = {
- INDEX_op_neg_vec, INDEX_op_shlv_vec,
- INDEX_op_shrv_vec, INDEX_op_cmp_vec, 0
-};
-
-const GVecGen3 ushl_op[4] = {
- { .fniv = gen_ushl_vec,
- .fno = gen_helper_gvec_ushl_b,
- .opt_opc = ushl_list,
- .vece = MO_8 },
- { .fniv = gen_ushl_vec,
- .fno = gen_helper_gvec_ushl_h,
- .opt_opc = ushl_list,
- .vece = MO_16 },
- { .fni4 = gen_ushl_i32,
- .fniv = gen_ushl_vec,
- .opt_opc = ushl_list,
- .vece = MO_32 },
- { .fni8 = gen_ushl_i64,
- .fniv = gen_ushl_vec,
- .opt_opc = ushl_list,
- .vece = MO_64 },
-};
+void gen_gvec_ushl(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_neg_vec, INDEX_op_shlv_vec,
+ INDEX_op_shrv_vec, INDEX_op_cmp_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_ushl_vec,
+ .fno = gen_helper_gvec_ushl_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fniv = gen_ushl_vec,
+ .fno = gen_helper_gvec_ushl_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_ushl_i32,
+ .fniv = gen_ushl_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_ushl_i64,
+ .fniv = gen_ushl_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
void gen_sshl_i32(TCGv_i32 dst, TCGv_i32 src, TCGv_i32 shift)
{
@@ -4878,29 +4886,33 @@ static void gen_sshl_vec(unsigned vece, TCGv_vec dst,
tcg_temp_free_vec(tmp);
}
-static const TCGOpcode sshl_list[] = {
- INDEX_op_neg_vec, INDEX_op_umin_vec, INDEX_op_shlv_vec,
- INDEX_op_sarv_vec, INDEX_op_cmp_vec, INDEX_op_cmpsel_vec, 0
-};
-
-const GVecGen3 sshl_op[4] = {
- { .fniv = gen_sshl_vec,
- .fno = gen_helper_gvec_sshl_b,
- .opt_opc = sshl_list,
- .vece = MO_8 },
- { .fniv = gen_sshl_vec,
- .fno = gen_helper_gvec_sshl_h,
- .opt_opc = sshl_list,
- .vece = MO_16 },
- { .fni4 = gen_sshl_i32,
- .fniv = gen_sshl_vec,
- .opt_opc = sshl_list,
- .vece = MO_32 },
- { .fni8 = gen_sshl_i64,
- .fniv = gen_sshl_vec,
- .opt_opc = sshl_list,
- .vece = MO_64 },
-};
+void gen_gvec_sshl(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_neg_vec, INDEX_op_umin_vec, INDEX_op_shlv_vec,
+ INDEX_op_sarv_vec, INDEX_op_cmp_vec, INDEX_op_cmpsel_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_sshl_vec,
+ .fno = gen_helper_gvec_sshl_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fniv = gen_sshl_vec,
+ .fno = gen_helper_gvec_sshl_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_sshl_i32,
+ .fniv = gen_sshl_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_sshl_i64,
+ .fniv = gen_sshl_vec,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
static void gen_uqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
TCGv_vec a, TCGv_vec b)
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 11/45] target/arm: Create gen_gvec_{uqadd, sqadd, uqsub, sqsub}
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (9 preceding siblings ...)
2020-05-14 14:21 ` [PULL 10/45] target/arm: Create gen_gvec_{cmtst,ushl,sshl} Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 12/45] target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32 Peter Maydell
` (34 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Provide a functional interface for the vector expansion.
This fits better with the existing set of helpers that
we provide for other operations.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.h | 13 +-
target/arm/translate-a64.c | 22 ++-
target/arm/translate-neon.inc.c | 19 +--
target/arm/translate.c | 228 +++++++++++++++++---------------
4 files changed, 147 insertions(+), 135 deletions(-)
diff --git a/target/arm/translate.h b/target/arm/translate.h
index a02a54cabf7..4e1778c5e09 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -298,16 +298,21 @@ void gen_gvec_sshl(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
void gen_gvec_ushl(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
-extern const GVecGen4 uqadd_op[4];
-extern const GVecGen4 sqadd_op[4];
-extern const GVecGen4 uqsub_op[4];
-extern const GVecGen4 sqsub_op[4];
void gen_cmtst_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b);
void gen_ushl_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b);
void gen_sshl_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b);
void gen_ushl_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b);
void gen_sshl_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b);
+void gen_gvec_uqadd_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sqadd_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_uqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
void gen_gvec_ssra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
int64_t shift, uint32_t opr_sz, uint32_t max_sz);
void gen_gvec_usra(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 3956c19ed8b..ea5f6ceadcb 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -11168,20 +11168,18 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
switch (opcode) {
case 0x01: /* SQADD, UQADD */
- tcg_gen_gvec_4(vec_full_reg_offset(s, rd),
- offsetof(CPUARMState, vfp.qc),
- vec_full_reg_offset(s, rn),
- vec_full_reg_offset(s, rm),
- is_q ? 16 : 8, vec_full_reg_size(s),
- (u ? uqadd_op : sqadd_op) + size);
+ if (u) {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uqadd_qc, size);
+ } else {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sqadd_qc, size);
+ }
return;
case 0x05: /* SQSUB, UQSUB */
- tcg_gen_gvec_4(vec_full_reg_offset(s, rd),
- offsetof(CPUARMState, vfp.qc),
- vec_full_reg_offset(s, rn),
- vec_full_reg_offset(s, rm),
- is_q ? 16 : 8, vec_full_reg_size(s),
- (u ? uqsub_op : sqsub_op) + size);
+ if (u) {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uqsub_qc, size);
+ } else {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sqsub_qc, size);
+ }
return;
case 0x08: /* SSHL, USHL */
if (u) {
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index e16475c212e..099491b16f3 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -605,6 +605,10 @@ DO_3SAME(VORN, tcg_gen_gvec_orc)
DO_3SAME(VEOR, tcg_gen_gvec_xor)
DO_3SAME(VSHL_S, gen_gvec_sshl)
DO_3SAME(VSHL_U, gen_gvec_ushl)
+DO_3SAME(VQADD_S, gen_gvec_sqadd_qc)
+DO_3SAME(VQADD_U, gen_gvec_uqadd_qc)
+DO_3SAME(VQSUB_S, gen_gvec_sqsub_qc)
+DO_3SAME(VQSUB_U, gen_gvec_uqsub_qc)
/* These insns are all gvec_bitsel but with the inputs in various orders. */
#define DO_3SAME_BITSEL(INSN, O1, O2, O3) \
@@ -653,21 +657,6 @@ DO_3SAME_CMP(VCGE_S, TCG_COND_GE)
DO_3SAME_CMP(VCGE_U, TCG_COND_GEU)
DO_3SAME_CMP(VCEQ, TCG_COND_EQ)
-#define DO_3SAME_GVEC4(INSN, OPARRAY) \
- static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
- uint32_t rn_ofs, uint32_t rm_ofs, \
- uint32_t oprsz, uint32_t maxsz) \
- { \
- tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc), \
- rn_ofs, rm_ofs, oprsz, maxsz, &OPARRAY[vece]); \
- } \
- DO_3SAME(INSN, gen_##INSN##_3s)
-
-DO_3SAME_GVEC4(VQADD_S, sqadd_op)
-DO_3SAME_GVEC4(VQADD_U, uqadd_op)
-DO_3SAME_GVEC4(VQSUB_S, sqsub_op)
-DO_3SAME_GVEC4(VQSUB_U, uqsub_op)
-
static void gen_VMUL_p_3s(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t oprsz, uint32_t maxsz)
{
diff --git a/target/arm/translate.c b/target/arm/translate.c
index df91ff73e3d..7eb30cde600 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -4925,32 +4925,37 @@ static void gen_uqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
tcg_temp_free_vec(x);
}
-static const TCGOpcode vecop_list_uqadd[] = {
- INDEX_op_usadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0
-};
-
-const GVecGen4 uqadd_op[4] = {
- { .fniv = gen_uqadd_vec,
- .fno = gen_helper_gvec_uqadd_b,
- .write_aofs = true,
- .opt_opc = vecop_list_uqadd,
- .vece = MO_8 },
- { .fniv = gen_uqadd_vec,
- .fno = gen_helper_gvec_uqadd_h,
- .write_aofs = true,
- .opt_opc = vecop_list_uqadd,
- .vece = MO_16 },
- { .fniv = gen_uqadd_vec,
- .fno = gen_helper_gvec_uqadd_s,
- .write_aofs = true,
- .opt_opc = vecop_list_uqadd,
- .vece = MO_32 },
- { .fniv = gen_uqadd_vec,
- .fno = gen_helper_gvec_uqadd_d,
- .write_aofs = true,
- .opt_opc = vecop_list_uqadd,
- .vece = MO_64 },
-};
+void gen_gvec_uqadd_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_usadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen4 ops[4] = {
+ { .fniv = gen_uqadd_vec,
+ .fno = gen_helper_gvec_uqadd_b,
+ .write_aofs = true,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fniv = gen_uqadd_vec,
+ .fno = gen_helper_gvec_uqadd_h,
+ .write_aofs = true,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fniv = gen_uqadd_vec,
+ .fno = gen_helper_gvec_uqadd_s,
+ .write_aofs = true,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fniv = gen_uqadd_vec,
+ .fno = gen_helper_gvec_uqadd_d,
+ .write_aofs = true,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc),
+ rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
static void gen_sqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
TCGv_vec a, TCGv_vec b)
@@ -4963,32 +4968,37 @@ static void gen_sqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
tcg_temp_free_vec(x);
}
-static const TCGOpcode vecop_list_sqadd[] = {
- INDEX_op_ssadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0
-};
-
-const GVecGen4 sqadd_op[4] = {
- { .fniv = gen_sqadd_vec,
- .fno = gen_helper_gvec_sqadd_b,
- .opt_opc = vecop_list_sqadd,
- .write_aofs = true,
- .vece = MO_8 },
- { .fniv = gen_sqadd_vec,
- .fno = gen_helper_gvec_sqadd_h,
- .opt_opc = vecop_list_sqadd,
- .write_aofs = true,
- .vece = MO_16 },
- { .fniv = gen_sqadd_vec,
- .fno = gen_helper_gvec_sqadd_s,
- .opt_opc = vecop_list_sqadd,
- .write_aofs = true,
- .vece = MO_32 },
- { .fniv = gen_sqadd_vec,
- .fno = gen_helper_gvec_sqadd_d,
- .opt_opc = vecop_list_sqadd,
- .write_aofs = true,
- .vece = MO_64 },
-};
+void gen_gvec_sqadd_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_ssadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0
+ };
+ static const GVecGen4 ops[4] = {
+ { .fniv = gen_sqadd_vec,
+ .fno = gen_helper_gvec_sqadd_b,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_8 },
+ { .fniv = gen_sqadd_vec,
+ .fno = gen_helper_gvec_sqadd_h,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_16 },
+ { .fniv = gen_sqadd_vec,
+ .fno = gen_helper_gvec_sqadd_s,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_32 },
+ { .fniv = gen_sqadd_vec,
+ .fno = gen_helper_gvec_sqadd_d,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc),
+ rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
static void gen_uqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
TCGv_vec a, TCGv_vec b)
@@ -5001,32 +5011,37 @@ static void gen_uqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
tcg_temp_free_vec(x);
}
-static const TCGOpcode vecop_list_uqsub[] = {
- INDEX_op_ussub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0
-};
-
-const GVecGen4 uqsub_op[4] = {
- { .fniv = gen_uqsub_vec,
- .fno = gen_helper_gvec_uqsub_b,
- .opt_opc = vecop_list_uqsub,
- .write_aofs = true,
- .vece = MO_8 },
- { .fniv = gen_uqsub_vec,
- .fno = gen_helper_gvec_uqsub_h,
- .opt_opc = vecop_list_uqsub,
- .write_aofs = true,
- .vece = MO_16 },
- { .fniv = gen_uqsub_vec,
- .fno = gen_helper_gvec_uqsub_s,
- .opt_opc = vecop_list_uqsub,
- .write_aofs = true,
- .vece = MO_32 },
- { .fniv = gen_uqsub_vec,
- .fno = gen_helper_gvec_uqsub_d,
- .opt_opc = vecop_list_uqsub,
- .write_aofs = true,
- .vece = MO_64 },
-};
+void gen_gvec_uqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_ussub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0
+ };
+ static const GVecGen4 ops[4] = {
+ { .fniv = gen_uqsub_vec,
+ .fno = gen_helper_gvec_uqsub_b,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_8 },
+ { .fniv = gen_uqsub_vec,
+ .fno = gen_helper_gvec_uqsub_h,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_16 },
+ { .fniv = gen_uqsub_vec,
+ .fno = gen_helper_gvec_uqsub_s,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_32 },
+ { .fniv = gen_uqsub_vec,
+ .fno = gen_helper_gvec_uqsub_d,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc),
+ rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
static void gen_sqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
TCGv_vec a, TCGv_vec b)
@@ -5039,32 +5054,37 @@ static void gen_sqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat,
tcg_temp_free_vec(x);
}
-static const TCGOpcode vecop_list_sqsub[] = {
- INDEX_op_sssub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0
-};
-
-const GVecGen4 sqsub_op[4] = {
- { .fniv = gen_sqsub_vec,
- .fno = gen_helper_gvec_sqsub_b,
- .opt_opc = vecop_list_sqsub,
- .write_aofs = true,
- .vece = MO_8 },
- { .fniv = gen_sqsub_vec,
- .fno = gen_helper_gvec_sqsub_h,
- .opt_opc = vecop_list_sqsub,
- .write_aofs = true,
- .vece = MO_16 },
- { .fniv = gen_sqsub_vec,
- .fno = gen_helper_gvec_sqsub_s,
- .opt_opc = vecop_list_sqsub,
- .write_aofs = true,
- .vece = MO_32 },
- { .fniv = gen_sqsub_vec,
- .fno = gen_helper_gvec_sqsub_d,
- .opt_opc = vecop_list_sqsub,
- .write_aofs = true,
- .vece = MO_64 },
-};
+void gen_gvec_sqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sssub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0
+ };
+ static const GVecGen4 ops[4] = {
+ { .fniv = gen_sqsub_vec,
+ .fno = gen_helper_gvec_sqsub_b,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_8 },
+ { .fniv = gen_sqsub_vec,
+ .fno = gen_helper_gvec_sqsub_h,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_16 },
+ { .fniv = gen_sqsub_vec,
+ .fno = gen_helper_gvec_sqsub_s,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_32 },
+ { .fniv = gen_sqsub_vec,
+ .fno = gen_helper_gvec_sqsub_d,
+ .opt_opc = vecop_list,
+ .write_aofs = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc),
+ rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
/* Translate a NEON data processing instruction. Return nonzero if the
instruction is invalid.
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 12/45] target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (10 preceding siblings ...)
2020-05-14 14:21 ` [PULL 11/45] target/arm: Create gen_gvec_{uqadd, sqadd, uqsub, sqsub} Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 13/45] target/arm: Create gen_gvec_{qrdmla,qrdmls} Peter Maydell
` (33 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
These operations do not touch fp_status.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.h | 4 ++--
target/arm/translate-a64.c | 5 ++---
target/arm/translate.c | 12 ++----------
target/arm/vfp_helper.c | 5 ++---
4 files changed, 8 insertions(+), 18 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 33c76192d20..aed30509655 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -211,8 +211,8 @@ DEF_HELPER_FLAGS_2(recpe_f64, TCG_CALL_NO_RWG, f64, f64, ptr)
DEF_HELPER_FLAGS_2(rsqrte_f16, TCG_CALL_NO_RWG, f16, f16, ptr)
DEF_HELPER_FLAGS_2(rsqrte_f32, TCG_CALL_NO_RWG, f32, f32, ptr)
DEF_HELPER_FLAGS_2(rsqrte_f64, TCG_CALL_NO_RWG, f64, f64, ptr)
-DEF_HELPER_2(recpe_u32, i32, i32, ptr)
-DEF_HELPER_FLAGS_2(rsqrte_u32, TCG_CALL_NO_RWG, i32, i32, ptr)
+DEF_HELPER_FLAGS_1(recpe_u32, TCG_CALL_NO_RWG, i32, i32)
+DEF_HELPER_FLAGS_1(rsqrte_u32, TCG_CALL_NO_RWG, i32, i32)
DEF_HELPER_FLAGS_4(neon_tbl, TCG_CALL_NO_RWG, i32, i32, i32, ptr, i32)
DEF_HELPER_3(shl_cc, i32, env, i32, i32)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index ea5f6ceadcb..367fa403ae2 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -9699,7 +9699,7 @@ static void handle_2misc_reciprocal(DisasContext *s, int opcode,
switch (opcode) {
case 0x3c: /* URECPE */
- gen_helper_recpe_u32(tcg_res, tcg_op, fpst);
+ gen_helper_recpe_u32(tcg_res, tcg_op);
break;
case 0x3d: /* FRECPE */
gen_helper_recpe_f32(tcg_res, tcg_op, fpst);
@@ -12244,7 +12244,6 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
unallocated_encoding(s);
return;
}
- need_fpstatus = true;
break;
case 0x1e: /* FRINT32Z */
case 0x1f: /* FRINT64Z */
@@ -12412,7 +12411,7 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
gen_helper_rints_exact(tcg_res, tcg_op, tcg_fpstatus);
break;
case 0x7c: /* URSQRTE */
- gen_helper_rsqrte_u32(tcg_res, tcg_op, tcg_fpstatus);
+ gen_helper_rsqrte_u32(tcg_res, tcg_op);
break;
case 0x1e: /* FRINT32Z */
case 0x5e: /* FRINT32X */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 7eb30cde600..391a09b4398 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -6875,19 +6875,11 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break;
}
case NEON_2RM_VRECPE:
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- gen_helper_recpe_u32(tmp, tmp, fpstatus);
- tcg_temp_free_ptr(fpstatus);
+ gen_helper_recpe_u32(tmp, tmp);
break;
- }
case NEON_2RM_VRSQRTE:
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- gen_helper_rsqrte_u32(tmp, tmp, fpstatus);
- tcg_temp_free_ptr(fpstatus);
+ gen_helper_rsqrte_u32(tmp, tmp);
break;
- }
case NEON_2RM_VRECPE_F:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c
index 930d6e747f6..ec007fce255 100644
--- a/target/arm/vfp_helper.c
+++ b/target/arm/vfp_helper.c
@@ -1023,9 +1023,8 @@ float64 HELPER(rsqrte_f64)(float64 input, void *fpstp)
return make_float64(val);
}
-uint32_t HELPER(recpe_u32)(uint32_t a, void *fpstp)
+uint32_t HELPER(recpe_u32)(uint32_t a)
{
- /* float_status *s = fpstp; */
int input, estimate;
if ((a & 0x80000000) == 0) {
@@ -1038,7 +1037,7 @@ uint32_t HELPER(recpe_u32)(uint32_t a, void *fpstp)
return deposit32(0, (32 - 9), 9, estimate);
}
-uint32_t HELPER(rsqrte_u32)(uint32_t a, void *fpstp)
+uint32_t HELPER(rsqrte_u32)(uint32_t a)
{
int estimate;
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 13/45] target/arm: Create gen_gvec_{qrdmla,qrdmls}
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (11 preceding siblings ...)
2020-05-14 14:21 ` [PULL 12/45] target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32 Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 14/45] target/arm: Pass pointer to qc to qrdmla/qrdmls Peter Maydell
` (32 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Provide a functional interface for the vector expansion.
This fits better with the existing set of helpers that
we provide for other operations.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.h | 5 ++++
target/arm/translate-a64.c | 34 ++----------------------
target/arm/translate.c | 54 +++++++++++++++++++-------------------
3 files changed, 34 insertions(+), 59 deletions(-)
diff --git a/target/arm/translate.h b/target/arm/translate.h
index 4e1778c5e09..aea8a9759d2 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -332,6 +332,11 @@ void gen_gvec_sri(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
void gen_gvec_sli(unsigned vece, uint32_t rd_ofs, uint32_t rm_ofs,
int64_t shift, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sqrdmlah_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sqrdmlsh_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 367fa403ae2..4577df3cf43 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -587,18 +587,6 @@ static void gen_gvec_op3_ool(DisasContext *s, bool is_q, int rd,
is_q ? 16 : 8, vec_full_reg_size(s), data, fn);
}
-/* Expand a 3-operand + env pointer operation using
- * an out-of-line helper.
- */
-static void gen_gvec_op3_env(DisasContext *s, bool is_q, int rd,
- int rn, int rm, gen_helper_gvec_3_ptr *fn)
-{
- tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, rd),
- vec_full_reg_offset(s, rn),
- vec_full_reg_offset(s, rm), cpu_env,
- is_q ? 16 : 8, vec_full_reg_size(s), 0, fn);
-}
-
/* Expand a 3-operand + fpstatus pointer + simd data value operation using
* an out-of-line helper.
*/
@@ -11693,29 +11681,11 @@ static void disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
switch (opcode) {
case 0x0: /* SQRDMLAH (vector) */
- switch (size) {
- case 1:
- gen_gvec_op3_env(s, is_q, rd, rn, rm, gen_helper_gvec_qrdmlah_s16);
- break;
- case 2:
- gen_gvec_op3_env(s, is_q, rd, rn, rm, gen_helper_gvec_qrdmlah_s32);
- break;
- default:
- g_assert_not_reached();
- }
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sqrdmlah_qc, size);
return;
case 0x1: /* SQRDMLSH (vector) */
- switch (size) {
- case 1:
- gen_gvec_op3_env(s, is_q, rd, rn, rm, gen_helper_gvec_qrdmlsh_s16);
- break;
- case 2:
- gen_gvec_op3_env(s, is_q, rd, rn, rm, gen_helper_gvec_qrdmlsh_s32);
- break;
- default:
- g_assert_not_reached();
- }
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sqrdmlsh_qc, size);
return;
case 0x2: /* SDOT / UDOT */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 391a09b4398..39626e0df91 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -3629,20 +3629,26 @@ static const uint8_t neon_2rm_sizes[] = {
[NEON_2RM_VCVT_UF] = 0x4,
};
-
-/* Expand v8.1 simd helper. */
-static int do_v81_helper(DisasContext *s, gen_helper_gvec_3_ptr *fn,
- int q, int rd, int rn, int rm)
+void gen_gvec_sqrdmlah_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
{
- if (dc_isar_feature(aa32_rdm, s)) {
- int opr_sz = (1 + q) * 8;
- tcg_gen_gvec_3_ptr(vfp_reg_offset(1, rd),
- vfp_reg_offset(1, rn),
- vfp_reg_offset(1, rm), cpu_env,
- opr_sz, opr_sz, 0, fn);
- return 0;
- }
- return 1;
+ static gen_helper_gvec_3_ptr * const fns[2] = {
+ gen_helper_gvec_qrdmlah_s16, gen_helper_gvec_qrdmlah_s32
+ };
+ tcg_debug_assert(vece >= 1 && vece <= 2);
+ tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, cpu_env,
+ opr_sz, max_sz, 0, fns[vece - 1]);
+}
+
+void gen_gvec_sqrdmlsh_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static gen_helper_gvec_3_ptr * const fns[2] = {
+ gen_helper_gvec_qrdmlsh_s16, gen_helper_gvec_qrdmlsh_s32
+ };
+ tcg_debug_assert(vece >= 1 && vece <= 2);
+ tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, cpu_env,
+ opr_sz, max_sz, 0, fns[vece - 1]);
}
#define GEN_CMP0(NAME, COND) \
@@ -5197,13 +5203,10 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break; /* VPADD */
}
/* VQRDMLAH */
- switch (size) {
- case 1:
- return do_v81_helper(s, gen_helper_gvec_qrdmlah_s16,
- q, rd, rn, rm);
- case 2:
- return do_v81_helper(s, gen_helper_gvec_qrdmlah_s32,
- q, rd, rn, rm);
+ if (dc_isar_feature(aa32_rdm, s) && (size == 1 || size == 2)) {
+ gen_gvec_sqrdmlah_qc(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ return 0;
}
return 1;
@@ -5216,13 +5219,10 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break;
}
/* VQRDMLSH */
- switch (size) {
- case 1:
- return do_v81_helper(s, gen_helper_gvec_qrdmlsh_s16,
- q, rd, rn, rm);
- case 2:
- return do_v81_helper(s, gen_helper_gvec_qrdmlsh_s32,
- q, rd, rn, rm);
+ if (dc_isar_feature(aa32_rdm, s) && (size == 1 || size == 2)) {
+ gen_gvec_sqrdmlsh_qc(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ return 0;
}
return 1;
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 14/45] target/arm: Pass pointer to qc to qrdmla/qrdmls
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (12 preceding siblings ...)
2020-05-14 14:21 ` [PULL 13/45] target/arm: Create gen_gvec_{qrdmla,qrdmls} Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 15/45] target/arm: Clear tail in gvec_fmul_idx_*, gvec_fmla_idx_* Peter Maydell
` (31 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Pass a pointer directly to env->vfp.qc[0], rather than env.
This will allow SVE2, which does not modify QC, to pass a
pointer to dummy storage.
Change the return type of inl_qrdml.h_s16 to match the
sense of the operation: signed.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/translate.c | 18 ++++++++---
target/arm/vec_helper.c | 70 +++++++++++++++++++++++------------------
2 files changed, 54 insertions(+), 34 deletions(-)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 39626e0df91..21529a9b8f6 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -3629,6 +3629,18 @@ static const uint8_t neon_2rm_sizes[] = {
[NEON_2RM_VCVT_UF] = 0x4,
};
+static void gen_gvec_fn3_qc(uint32_t rd_ofs, uint32_t rn_ofs, uint32_t rm_ofs,
+ uint32_t opr_sz, uint32_t max_sz,
+ gen_helper_gvec_3_ptr *fn)
+{
+ TCGv_ptr qc_ptr = tcg_temp_new_ptr();
+
+ tcg_gen_addi_ptr(qc_ptr, cpu_env, offsetof(CPUARMState, vfp.qc));
+ tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, qc_ptr,
+ opr_sz, max_sz, 0, fn);
+ tcg_temp_free_ptr(qc_ptr);
+}
+
void gen_gvec_sqrdmlah_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
{
@@ -3636,8 +3648,7 @@ void gen_gvec_sqrdmlah_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
gen_helper_gvec_qrdmlah_s16, gen_helper_gvec_qrdmlah_s32
};
tcg_debug_assert(vece >= 1 && vece <= 2);
- tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, cpu_env,
- opr_sz, max_sz, 0, fns[vece - 1]);
+ gen_gvec_fn3_qc(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, fns[vece - 1]);
}
void gen_gvec_sqrdmlsh_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
@@ -3647,8 +3658,7 @@ void gen_gvec_sqrdmlsh_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
gen_helper_gvec_qrdmlsh_s16, gen_helper_gvec_qrdmlsh_s32
};
tcg_debug_assert(vece >= 1 && vece <= 2);
- tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, cpu_env,
- opr_sz, max_sz, 0, fns[vece - 1]);
+ gen_gvec_fn3_qc(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, fns[vece - 1]);
}
#define GEN_CMP0(NAME, COND) \
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index 096fea67efc..6aa2ca08271 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -36,8 +36,6 @@
#define H4(x) (x)
#endif
-#define SET_QC() env->vfp.qc[0] = 1
-
static void clear_tail(void *vd, uintptr_t opr_sz, uintptr_t max_sz)
{
uint64_t *d = vd + opr_sz;
@@ -49,8 +47,8 @@ static void clear_tail(void *vd, uintptr_t opr_sz, uintptr_t max_sz)
}
/* Signed saturating rounding doubling multiply-accumulate high half, 16-bit */
-static uint16_t inl_qrdmlah_s16(CPUARMState *env, int16_t src1,
- int16_t src2, int16_t src3)
+static int16_t inl_qrdmlah_s16(int16_t src1, int16_t src2,
+ int16_t src3, uint32_t *sat)
{
/* Simplify:
* = ((a3 << 16) + ((e1 * e2) << 1) + (1 << 15)) >> 16
@@ -60,7 +58,7 @@ static uint16_t inl_qrdmlah_s16(CPUARMState *env, int16_t src1,
ret = ((int32_t)src3 << 15) + ret + (1 << 14);
ret >>= 15;
if (ret != (int16_t)ret) {
- SET_QC();
+ *sat = 1;
ret = (ret < 0 ? -0x8000 : 0x7fff);
}
return ret;
@@ -69,30 +67,30 @@ static uint16_t inl_qrdmlah_s16(CPUARMState *env, int16_t src1,
uint32_t HELPER(neon_qrdmlah_s16)(CPUARMState *env, uint32_t src1,
uint32_t src2, uint32_t src3)
{
- uint16_t e1 = inl_qrdmlah_s16(env, src1, src2, src3);
- uint16_t e2 = inl_qrdmlah_s16(env, src1 >> 16, src2 >> 16, src3 >> 16);
+ uint32_t *sat = &env->vfp.qc[0];
+ uint16_t e1 = inl_qrdmlah_s16(src1, src2, src3, sat);
+ uint16_t e2 = inl_qrdmlah_s16(src1 >> 16, src2 >> 16, src3 >> 16, sat);
return deposit32(e1, 16, 16, e2);
}
void HELPER(gvec_qrdmlah_s16)(void *vd, void *vn, void *vm,
- void *ve, uint32_t desc)
+ void *vq, uint32_t desc)
{
uintptr_t opr_sz = simd_oprsz(desc);
int16_t *d = vd;
int16_t *n = vn;
int16_t *m = vm;
- CPUARMState *env = ve;
uintptr_t i;
for (i = 0; i < opr_sz / 2; ++i) {
- d[i] = inl_qrdmlah_s16(env, n[i], m[i], d[i]);
+ d[i] = inl_qrdmlah_s16(n[i], m[i], d[i], vq);
}
clear_tail(d, opr_sz, simd_maxsz(desc));
}
/* Signed saturating rounding doubling multiply-subtract high half, 16-bit */
-static uint16_t inl_qrdmlsh_s16(CPUARMState *env, int16_t src1,
- int16_t src2, int16_t src3)
+static int16_t inl_qrdmlsh_s16(int16_t src1, int16_t src2,
+ int16_t src3, uint32_t *sat)
{
/* Similarly, using subtraction:
* = ((a3 << 16) - ((e1 * e2) << 1) + (1 << 15)) >> 16
@@ -102,7 +100,7 @@ static uint16_t inl_qrdmlsh_s16(CPUARMState *env, int16_t src1,
ret = ((int32_t)src3 << 15) - ret + (1 << 14);
ret >>= 15;
if (ret != (int16_t)ret) {
- SET_QC();
+ *sat = 1;
ret = (ret < 0 ? -0x8000 : 0x7fff);
}
return ret;
@@ -111,85 +109,97 @@ static uint16_t inl_qrdmlsh_s16(CPUARMState *env, int16_t src1,
uint32_t HELPER(neon_qrdmlsh_s16)(CPUARMState *env, uint32_t src1,
uint32_t src2, uint32_t src3)
{
- uint16_t e1 = inl_qrdmlsh_s16(env, src1, src2, src3);
- uint16_t e2 = inl_qrdmlsh_s16(env, src1 >> 16, src2 >> 16, src3 >> 16);
+ uint32_t *sat = &env->vfp.qc[0];
+ uint16_t e1 = inl_qrdmlsh_s16(src1, src2, src3, sat);
+ uint16_t e2 = inl_qrdmlsh_s16(src1 >> 16, src2 >> 16, src3 >> 16, sat);
return deposit32(e1, 16, 16, e2);
}
void HELPER(gvec_qrdmlsh_s16)(void *vd, void *vn, void *vm,
- void *ve, uint32_t desc)
+ void *vq, uint32_t desc)
{
uintptr_t opr_sz = simd_oprsz(desc);
int16_t *d = vd;
int16_t *n = vn;
int16_t *m = vm;
- CPUARMState *env = ve;
uintptr_t i;
for (i = 0; i < opr_sz / 2; ++i) {
- d[i] = inl_qrdmlsh_s16(env, n[i], m[i], d[i]);
+ d[i] = inl_qrdmlsh_s16(n[i], m[i], d[i], vq);
}
clear_tail(d, opr_sz, simd_maxsz(desc));
}
/* Signed saturating rounding doubling multiply-accumulate high half, 32-bit */
-uint32_t HELPER(neon_qrdmlah_s32)(CPUARMState *env, int32_t src1,
- int32_t src2, int32_t src3)
+static int32_t inl_qrdmlah_s32(int32_t src1, int32_t src2,
+ int32_t src3, uint32_t *sat)
{
/* Simplify similarly to int_qrdmlah_s16 above. */
int64_t ret = (int64_t)src1 * src2;
ret = ((int64_t)src3 << 31) + ret + (1 << 30);
ret >>= 31;
if (ret != (int32_t)ret) {
- SET_QC();
+ *sat = 1;
ret = (ret < 0 ? INT32_MIN : INT32_MAX);
}
return ret;
}
+uint32_t HELPER(neon_qrdmlah_s32)(CPUARMState *env, int32_t src1,
+ int32_t src2, int32_t src3)
+{
+ uint32_t *sat = &env->vfp.qc[0];
+ return inl_qrdmlah_s32(src1, src2, src3, sat);
+}
+
void HELPER(gvec_qrdmlah_s32)(void *vd, void *vn, void *vm,
- void *ve, uint32_t desc)
+ void *vq, uint32_t desc)
{
uintptr_t opr_sz = simd_oprsz(desc);
int32_t *d = vd;
int32_t *n = vn;
int32_t *m = vm;
- CPUARMState *env = ve;
uintptr_t i;
for (i = 0; i < opr_sz / 4; ++i) {
- d[i] = helper_neon_qrdmlah_s32(env, n[i], m[i], d[i]);
+ d[i] = inl_qrdmlah_s32(n[i], m[i], d[i], vq);
}
clear_tail(d, opr_sz, simd_maxsz(desc));
}
/* Signed saturating rounding doubling multiply-subtract high half, 32-bit */
-uint32_t HELPER(neon_qrdmlsh_s32)(CPUARMState *env, int32_t src1,
- int32_t src2, int32_t src3)
+static int32_t inl_qrdmlsh_s32(int32_t src1, int32_t src2,
+ int32_t src3, uint32_t *sat)
{
/* Simplify similarly to int_qrdmlsh_s16 above. */
int64_t ret = (int64_t)src1 * src2;
ret = ((int64_t)src3 << 31) - ret + (1 << 30);
ret >>= 31;
if (ret != (int32_t)ret) {
- SET_QC();
+ *sat = 1;
ret = (ret < 0 ? INT32_MIN : INT32_MAX);
}
return ret;
}
+uint32_t HELPER(neon_qrdmlsh_s32)(CPUARMState *env, int32_t src1,
+ int32_t src2, int32_t src3)
+{
+ uint32_t *sat = &env->vfp.qc[0];
+ return inl_qrdmlsh_s32(src1, src2, src3, sat);
+}
+
void HELPER(gvec_qrdmlsh_s32)(void *vd, void *vn, void *vm,
- void *ve, uint32_t desc)
+ void *vq, uint32_t desc)
{
uintptr_t opr_sz = simd_oprsz(desc);
int32_t *d = vd;
int32_t *n = vn;
int32_t *m = vm;
- CPUARMState *env = ve;
uintptr_t i;
for (i = 0; i < opr_sz / 4; ++i) {
- d[i] = helper_neon_qrdmlsh_s32(env, n[i], m[i], d[i]);
+ d[i] = inl_qrdmlsh_s32(n[i], m[i], d[i], vq);
}
clear_tail(d, opr_sz, simd_maxsz(desc));
}
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 15/45] target/arm: Clear tail in gvec_fmul_idx_*, gvec_fmla_idx_*
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (13 preceding siblings ...)
2020-05-14 14:21 ` [PULL 14/45] target/arm: Pass pointer to qc to qrdmla/qrdmls Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 16/45] target/arm: Vectorize SABD/UABD Peter Maydell
` (30 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Must clear the tail for AdvSIMD when SVE is enabled.
Fixes: ca40a6e6e39
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/vec_helper.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index 6aa2ca08271..a483841adda 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -747,6 +747,7 @@ void HELPER(NAME)(void *vd, void *vn, void *vm, void *stat, uint32_t desc) \
d[i + j] = TYPE##_mul(n[i + j], mm, stat); \
} \
} \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
}
DO_MUL_IDX(gvec_fmul_idx_h, float16, H2)
@@ -771,6 +772,7 @@ void HELPER(NAME)(void *vd, void *vn, void *vm, void *va, \
mm, a[i + j], 0, stat); \
} \
} \
+ clear_tail(d, oprsz, simd_maxsz(desc)); \
}
DO_FMLA_IDX(gvec_fmla_idx_h, float16, H2)
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 16/45] target/arm: Vectorize SABD/UABD
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (14 preceding siblings ...)
2020-05-14 14:21 ` [PULL 15/45] target/arm: Clear tail in gvec_fmul_idx_*, gvec_fmla_idx_* Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 17/45] target/arm: Vectorize SABA/UABA Peter Maydell
` (29 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Include 64-bit element size in preparation for SVE2.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.h | 10 +++
target/arm/translate.h | 5 ++
target/arm/translate-a64.c | 8 ++-
target/arm/translate.c | 133 ++++++++++++++++++++++++++++++++++++-
target/arm/vec_helper.c | 24 +++++++
5 files changed, 176 insertions(+), 4 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index aed30509655..4678d3a6f4e 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -731,6 +731,16 @@ DEF_HELPER_FLAGS_3(gvec_sli_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
DEF_HELPER_FLAGS_3(gvec_sli_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
DEF_HELPER_FLAGS_3(gvec_sli_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_sabd_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_sabd_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_sabd_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_sabd_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(gvec_uabd_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uabd_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uabd_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uabd_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
#ifdef TARGET_AARCH64
#include "helper-a64.h"
#include "helper-sve.h"
diff --git a/target/arm/translate.h b/target/arm/translate.h
index aea8a9759d2..bbfe3d13930 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -337,6 +337,11 @@ void gen_gvec_sqrdmlah_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
void gen_gvec_sqrdmlsh_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_sabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_uabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 4577df3cf43..54b06553a65 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -11190,6 +11190,13 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_smin, size);
}
return;
+ case 0xe: /* SABD, UABD */
+ if (u) {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uabd, size);
+ } else {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sabd, size);
+ }
+ return;
case 0x10: /* ADD, SUB */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_sub, size);
@@ -11322,7 +11329,6 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
genenvfn = fns[size][u];
break;
}
- case 0xe: /* SABD, UABD */
case 0xf: /* SABA, UABA */
{
static NeonGenTwoOpFn * const fns[3][2] = {
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 21529a9b8f6..d288721c230 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5102,6 +5102,126 @@ void gen_gvec_sqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
}
+static void gen_sabd_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+
+ tcg_gen_sub_i32(t, a, b);
+ tcg_gen_sub_i32(d, b, a);
+ tcg_gen_movcond_i32(TCG_COND_LT, d, a, b, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_sabd_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_sub_i64(t, a, b);
+ tcg_gen_sub_i64(d, b, a);
+ tcg_gen_movcond_i64(TCG_COND_LT, d, a, b, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_sabd_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+
+ tcg_gen_smin_vec(vece, t, a, b);
+ tcg_gen_smax_vec(vece, d, a, b);
+ tcg_gen_sub_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void gen_gvec_sabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sub_vec, INDEX_op_smin_vec, INDEX_op_smax_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_sabd_vec,
+ .fno = gen_helper_gvec_sabd_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fniv = gen_sabd_vec,
+ .fno = gen_helper_gvec_sabd_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_sabd_i32,
+ .fniv = gen_sabd_vec,
+ .fno = gen_helper_gvec_sabd_s,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_sabd_i64,
+ .fniv = gen_sabd_vec,
+ .fno = gen_helper_gvec_sabd_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
+
+static void gen_uabd_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+
+ tcg_gen_sub_i32(t, a, b);
+ tcg_gen_sub_i32(d, b, a);
+ tcg_gen_movcond_i32(TCG_COND_LTU, d, a, b, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_uabd_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ tcg_gen_sub_i64(t, a, b);
+ tcg_gen_sub_i64(d, b, a);
+ tcg_gen_movcond_i64(TCG_COND_LTU, d, a, b, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_uabd_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+
+ tcg_gen_umin_vec(vece, t, a, b);
+ tcg_gen_umax_vec(vece, d, a, b);
+ tcg_gen_sub_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void gen_gvec_uabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sub_vec, INDEX_op_umin_vec, INDEX_op_umax_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_uabd_vec,
+ .fno = gen_helper_gvec_uabd_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8 },
+ { .fniv = gen_uabd_vec,
+ .fno = gen_helper_gvec_uabd_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16 },
+ { .fni4 = gen_uabd_i32,
+ .fniv = gen_uabd_vec,
+ .fno = gen_helper_gvec_uabd_s,
+ .opt_opc = vecop_list,
+ .vece = MO_32 },
+ { .fni8 = gen_uabd_i64,
+ .fniv = gen_uabd_vec,
+ .fno = gen_helper_gvec_uabd_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
+
/* Translate a NEON data processing instruction. Return nonzero if the
instruction is invalid.
We process data in a mixture of 32-bit and 64-bit chunks.
@@ -5236,6 +5356,16 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
return 1;
+ case NEON_3R_VABD:
+ if (u) {
+ gen_gvec_uabd(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ } else {
+ gen_gvec_sabd(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ }
+ return 0;
+
case NEON_3R_VADD_VSUB:
case NEON_3R_LOGIC:
case NEON_3R_VMAX:
@@ -5380,9 +5510,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VQRSHL:
GEN_NEON_INTEGER_OP_ENV(qrshl);
break;
- case NEON_3R_VABD:
- GEN_NEON_INTEGER_OP(abd);
- break;
case NEON_3R_VABA:
GEN_NEON_INTEGER_OP(abd);
tcg_temp_free_i32(tmp2);
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index a483841adda..a4972d02fc9 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -1407,3 +1407,27 @@ DO_CMP0(gvec_cgt0_h, int16_t, >)
DO_CMP0(gvec_cge0_h, int16_t, >=)
#undef DO_CMP0
+
+#define DO_ABD(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \
+{ \
+ intptr_t i, opr_sz = simd_oprsz(desc); \
+ TYPE *d = vd, *n = vn, *m = vm; \
+ \
+ for (i = 0; i < opr_sz / sizeof(TYPE); ++i) { \
+ d[i] = n[i] < m[i] ? m[i] - n[i] : n[i] - m[i]; \
+ } \
+ clear_tail(d, opr_sz, simd_maxsz(desc)); \
+}
+
+DO_ABD(gvec_sabd_b, int8_t)
+DO_ABD(gvec_sabd_h, int16_t)
+DO_ABD(gvec_sabd_s, int32_t)
+DO_ABD(gvec_sabd_d, int64_t)
+
+DO_ABD(gvec_uabd_b, uint8_t)
+DO_ABD(gvec_uabd_h, uint16_t)
+DO_ABD(gvec_uabd_s, uint32_t)
+DO_ABD(gvec_uabd_d, uint64_t)
+
+#undef DO_ABD
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 17/45] target/arm: Vectorize SABA/UABA
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (15 preceding siblings ...)
2020-05-14 14:21 ` [PULL 16/45] target/arm: Vectorize SABD/UABD Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-21 13:11 ` Peter Maydell
2020-05-14 14:21 ` [PULL 18/45] aspeed: Add support for the sonorapass-bmc board Peter Maydell
` (28 subsequent siblings)
45 siblings, 1 reply; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Richard Henderson <richard.henderson@linaro.org>
Include 64-bit element size in preparation for SVE2.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200513163245.17915-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.h | 17 +++--
target/arm/translate.h | 5 ++
target/arm/neon_helper.c | 10 ---
target/arm/translate-a64.c | 17 ++---
target/arm/translate.c | 134 +++++++++++++++++++++++++++++++++++--
target/arm/vec_helper.c | 24 +++++++
6 files changed, 174 insertions(+), 33 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 4678d3a6f4e..1857f4ee46a 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -284,13 +284,6 @@ DEF_HELPER_2(neon_pmax_s8, i32, i32, i32)
DEF_HELPER_2(neon_pmax_u16, i32, i32, i32)
DEF_HELPER_2(neon_pmax_s16, i32, i32, i32)
-DEF_HELPER_2(neon_abd_u8, i32, i32, i32)
-DEF_HELPER_2(neon_abd_s8, i32, i32, i32)
-DEF_HELPER_2(neon_abd_u16, i32, i32, i32)
-DEF_HELPER_2(neon_abd_s16, i32, i32, i32)
-DEF_HELPER_2(neon_abd_u32, i32, i32, i32)
-DEF_HELPER_2(neon_abd_s32, i32, i32, i32)
-
DEF_HELPER_2(neon_shl_u16, i32, i32, i32)
DEF_HELPER_2(neon_shl_s16, i32, i32, i32)
DEF_HELPER_2(neon_rshl_u8, i32, i32, i32)
@@ -741,6 +734,16 @@ DEF_HELPER_FLAGS_4(gvec_uabd_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(gvec_uabd_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(gvec_uabd_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(gvec_uaba_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uaba_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uaba_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uaba_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
#ifdef TARGET_AARCH64
#include "helper-a64.h"
#include "helper-sve.h"
diff --git a/target/arm/translate.h b/target/arm/translate.h
index bbfe3d13930..c937dfe9bf0 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -342,6 +342,11 @@ void gen_gvec_sabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
void gen_gvec_uabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_saba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void gen_gvec_uaba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c
index 448be93fa12..2ef75e04c83 100644
--- a/target/arm/neon_helper.c
+++ b/target/arm/neon_helper.c
@@ -576,16 +576,6 @@ NEON_POP(pmax_s16, neon_s16, 2)
NEON_POP(pmax_u16, neon_u16, 2)
#undef NEON_FN
-#define NEON_FN(dest, src1, src2) \
- dest = (src1 > src2) ? (src1 - src2) : (src2 - src1)
-NEON_VOP(abd_s8, neon_s8, 4)
-NEON_VOP(abd_u8, neon_u8, 4)
-NEON_VOP(abd_s16, neon_s16, 2)
-NEON_VOP(abd_u16, neon_u16, 2)
-NEON_VOP(abd_s32, neon_s32, 1)
-NEON_VOP(abd_u32, neon_u32, 1)
-#undef NEON_FN
-
#define NEON_FN(dest, src1, src2) do { \
int8_t tmp; \
tmp = (int8_t)src2; \
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 54b06553a65..991e451644c 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -11197,6 +11197,13 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sabd, size);
}
return;
+ case 0xf: /* SABA, UABA */
+ if (u) {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uaba, size);
+ } else {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_saba, size);
+ }
+ return;
case 0x10: /* ADD, SUB */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_sub, size);
@@ -11329,16 +11336,6 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
genenvfn = fns[size][u];
break;
}
- case 0xf: /* SABA, UABA */
- {
- static NeonGenTwoOpFn * const fns[3][2] = {
- { gen_helper_neon_abd_s8, gen_helper_neon_abd_u8 },
- { gen_helper_neon_abd_s16, gen_helper_neon_abd_u16 },
- { gen_helper_neon_abd_s32, gen_helper_neon_abd_u32 },
- };
- genfn = fns[size][u];
- break;
- }
case 0x16: /* SQDMULH, SQRDMULH */
{
static NeonGenTwoOpEnvFn * const fns[2][2] = {
diff --git a/target/arm/translate.c b/target/arm/translate.c
index d288721c230..e3d37ef2e99 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5222,6 +5222,124 @@ void gen_gvec_uabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
}
+static void gen_saba_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+ gen_sabd_i32(t, a, b);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_saba_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+ gen_sabd_i64(t, a, b);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_saba_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ gen_sabd_vec(vece, t, a, b);
+ tcg_gen_add_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void gen_gvec_saba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sub_vec, INDEX_op_add_vec,
+ INDEX_op_smin_vec, INDEX_op_smax_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_b,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_8 },
+ { .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_h,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_16 },
+ { .fni4 = gen_saba_i32,
+ .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_s,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_32 },
+ { .fni8 = gen_saba_i64,
+ .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
+
+static void gen_uaba_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+ gen_uabd_i32(t, a, b);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_uaba_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+ gen_uabd_i64(t, a, b);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_uaba_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ gen_uabd_vec(vece, t, a, b);
+ tcg_gen_add_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void gen_gvec_uaba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sub_vec, INDEX_op_add_vec,
+ INDEX_op_umin_vec, INDEX_op_umax_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_b,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_8 },
+ { .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_h,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_16 },
+ { .fni4 = gen_uaba_i32,
+ .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_s,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_32 },
+ { .fni8 = gen_uaba_i64,
+ .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
+
/* Translate a NEON data processing instruction. Return nonzero if the
instruction is invalid.
We process data in a mixture of 32-bit and 64-bit chunks.
@@ -5366,6 +5484,16 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
return 0;
+ case NEON_3R_VABA:
+ if (u) {
+ gen_gvec_uaba(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ } else {
+ gen_gvec_saba(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ }
+ return 0;
+
case NEON_3R_VADD_VSUB:
case NEON_3R_LOGIC:
case NEON_3R_VMAX:
@@ -5510,12 +5638,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VQRSHL:
GEN_NEON_INTEGER_OP_ENV(qrshl);
break;
- case NEON_3R_VABA:
- GEN_NEON_INTEGER_OP(abd);
- tcg_temp_free_i32(tmp2);
- tmp2 = neon_load_reg(rd, pass);
- gen_neon_add(size, tmp, tmp2);
- break;
case NEON_3R_VPMAX:
GEN_NEON_INTEGER_OP(pmax);
break;
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index a4972d02fc9..fa33df859e5 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -1431,3 +1431,27 @@ DO_ABD(gvec_uabd_s, uint32_t)
DO_ABD(gvec_uabd_d, uint64_t)
#undef DO_ABD
+
+#define DO_ABA(NAME, TYPE) \
+void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \
+{ \
+ intptr_t i, opr_sz = simd_oprsz(desc); \
+ TYPE *d = vd, *n = vn, *m = vm; \
+ \
+ for (i = 0; i < opr_sz / sizeof(TYPE); ++i) { \
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i]; \
+ } \
+ clear_tail(d, opr_sz, simd_maxsz(desc)); \
+}
+
+DO_ABA(gvec_saba_b, int8_t)
+DO_ABA(gvec_saba_h, int16_t)
+DO_ABA(gvec_saba_s, int32_t)
+DO_ABA(gvec_saba_d, int64_t)
+
+DO_ABA(gvec_uaba_b, uint8_t)
+DO_ABA(gvec_uaba_h, uint16_t)
+DO_ABA(gvec_uaba_s, uint32_t)
+DO_ABA(gvec_uaba_d, uint64_t)
+
+#undef DO_ABA
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 18/45] aspeed: Add support for the sonorapass-bmc board
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (16 preceding siblings ...)
2020-05-14 14:21 ` [PULL 17/45] target/arm: Vectorize SABA/UABA Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 19/45] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro Peter Maydell
` (27 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Patrick Williams <patrick@stwcx.xyz>
Sonora Pass is a 2 socket x86 motherboard designed by Facebook
and supported by OpenBMC. Strapping configuration was obtained
from hardware and i2c configuration is based on dts found at:
https://github.com/facebook/openbmc-linux/blob/1633c87b8ba7c162095787c988979b748ba65dc8/arch/arm/boot/dts/aspeed-bmc-facebook-sonorapass.dts
Booted a test image of http://github.com/facebook/openbmc to login
prompt.
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Reviewed-by: Amithash Prasad <amithash@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[PMM: fixed block comment style nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
hw/arm/aspeed.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 78 insertions(+)
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 1eacb2fc172..4d57d1e4363 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -73,6 +73,21 @@ struct AspeedBoardState {
SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
+/* Sonorapass hardware value: 0xF100D216 */
+#define SONORAPASS_BMC_HW_STRAP1 ( \
+ SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
+ SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
+ SCU_AST2500_HW_STRAP_UART_DEBUG | \
+ SCU_AST2500_HW_STRAP_RESERVED28 | \
+ SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
+ SCU_HW_STRAP_VGA_CLASS_CODE | \
+ SCU_HW_STRAP_LPC_RESET_PIN | \
+ SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER) | \
+ SCU_AST2500_HW_STRAP_SET_AXI_AHB_RATIO(AXI_AHB_RATIO_2_1) | \
+ SCU_HW_STRAP_VGA_BIOS_ROM | \
+ SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
+ SCU_AST2500_HW_STRAP_RESERVED1)
+
/* Swift hardware value: 0xF11AD206 */
#define SWIFT_BMC_HW_STRAP1 ( \
AST2500_HW_STRAP1_DEFAULTS | \
@@ -437,6 +452,50 @@ static void swift_bmc_i2c_init(AspeedBoardState *bmc)
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x4a);
}
+static void sonorapass_bmc_i2c_init(AspeedBoardState *bmc)
+{
+ AspeedSoCState *soc = &bmc->soc;
+
+ /* bus 2 : */
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), "tmp105", 0x48);
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), "tmp105", 0x49);
+ /* bus 2 : pca9546 @ 0x73 */
+
+ /* bus 3 : pca9548 @ 0x70 */
+
+ /* bus 4 : */
+ uint8_t *eeprom4_54 = g_malloc0(8 * 1024);
+ smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), 0x54,
+ eeprom4_54);
+ /* PCA9539 @ 0x76, but PCA9552 is compatible */
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "pca9552", 0x76);
+ /* PCA9539 @ 0x77, but PCA9552 is compatible */
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "pca9552", 0x77);
+
+ /* bus 6 : */
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 6), "tmp105", 0x48);
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 6), "tmp105", 0x49);
+ /* bus 6 : pca9546 @ 0x73 */
+
+ /* bus 8 : */
+ uint8_t *eeprom8_56 = g_malloc0(8 * 1024);
+ smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), 0x56,
+ eeprom8_56);
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x60);
+ i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x61);
+ /* bus 8 : adc128d818 @ 0x1d */
+ /* bus 8 : adc128d818 @ 0x1f */
+
+ /*
+ * bus 13 : pca9548 @ 0x71
+ * - channel 3:
+ * - tmm421 @ 0x4c
+ * - tmp421 @ 0x4e
+ * - tmp421 @ 0x4f
+ */
+
+}
+
static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
@@ -549,6 +608,21 @@ static void aspeed_machine_romulus_class_init(ObjectClass *oc, void *data)
mc->default_ram_size = 512 * MiB;
};
+static void aspeed_machine_sonorapass_class_init(ObjectClass *oc, void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+ AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
+
+ mc->desc = "OCP SonoraPass BMC (ARM1176)";
+ amc->soc_name = "ast2500-a1";
+ amc->hw_strap1 = SONORAPASS_BMC_HW_STRAP1;
+ amc->fmc_model = "mx66l1g45g";
+ amc->spi_model = "mx66l1g45g";
+ amc->num_cs = 2;
+ amc->i2c_init = sonorapass_bmc_i2c_init;
+ mc->default_ram_size = 512 * MiB;
+};
+
static void aspeed_machine_swift_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@@ -628,6 +702,10 @@ static const TypeInfo aspeed_machine_types[] = {
.name = MACHINE_TYPE_NAME("swift-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_swift_class_init,
+ }, {
+ .name = MACHINE_TYPE_NAME("sonorapass-bmc"),
+ .parent = TYPE_ASPEED_MACHINE,
+ .class_init = aspeed_machine_sonorapass_class_init,
}, {
.name = MACHINE_TYPE_NAME("witherspoon-bmc"),
.parent = TYPE_ASPEED_MACHINE,
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 19/45] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (17 preceding siblings ...)
2020-05-14 14:21 ` [PULL 18/45] aspeed: Add support for the sonorapass-bmc board Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 20/45] hw/arm/virt: Introduce a RAS machine option Peter Maydell
` (26 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
The little end UUID is used in many places, so make
NVDIMM_UUID_LE to a common macro to convert the UUID
to a little end array.
Reviewed-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Message-id: 20200512030609.19593-2-gengdongjiu@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/qemu/uuid.h | 27 +++++++++++++++++++++++++++
hw/acpi/nvdimm.c | 10 +++-------
2 files changed, 30 insertions(+), 7 deletions(-)
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
index 129c45f2c5e..9925febfa54 100644
--- a/include/qemu/uuid.h
+++ b/include/qemu/uuid.h
@@ -34,6 +34,33 @@ typedef struct {
};
} QemuUUID;
+/**
+ * UUID_LE - converts the fields of UUID to little-endian array,
+ * each of parameters is the filed of UUID.
+ *
+ * @time_low: The low field of the timestamp
+ * @time_mid: The middle field of the timestamp
+ * @time_hi_and_version: The high field of the timestamp
+ * multiplexed with the version number
+ * @clock_seq_hi_and_reserved: The high field of the clock
+ * sequence multiplexed with the variant
+ * @clock_seq_low: The low field of the clock sequence
+ * @node0: The spatially unique node0 identifier
+ * @node1: The spatially unique node1 identifier
+ * @node2: The spatially unique node2 identifier
+ * @node3: The spatially unique node3 identifier
+ * @node4: The spatially unique node4 identifier
+ * @node5: The spatially unique node5 identifier
+ */
+#define UUID_LE(time_low, time_mid, time_hi_and_version, \
+ clock_seq_hi_and_reserved, clock_seq_low, node0, node1, node2, \
+ node3, node4, node5) \
+ { (time_low) & 0xff, ((time_low) >> 8) & 0xff, ((time_low) >> 16) & 0xff, \
+ ((time_low) >> 24) & 0xff, (time_mid) & 0xff, ((time_mid) >> 8) & 0xff, \
+ (time_hi_and_version) & 0xff, ((time_hi_and_version) >> 8) & 0xff, \
+ (clock_seq_hi_and_reserved), (clock_seq_low), (node0), (node1), (node2),\
+ (node3), (node4), (node5) }
+
#define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
"%02hhx%02hhx-%02hhx%02hhx-" \
"%02hhx%02hhx-" \
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index fa7bf8b5075..9316d12b702 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -27,6 +27,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/uuid.h"
#include "hw/acpi/acpi.h"
#include "hw/acpi/aml-build.h"
#include "hw/acpi/bios-linker-loader.h"
@@ -34,18 +35,13 @@
#include "hw/mem/nvdimm.h"
#include "qemu/nvdimm-utils.h"
-#define NVDIMM_UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
- { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
- (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff, \
- (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
-
/*
* define Byte Addressable Persistent Memory (PM) Region according to
* ACPI 6.0: 5.2.25.1 System Physical Address Range Structure.
*/
static const uint8_t nvdimm_nfit_spa_uuid[] =
- NVDIMM_UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
- 0x18, 0xb7, 0x8c, 0xdb);
+ UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
+ 0x18, 0xb7, 0x8c, 0xdb);
/*
* NVDIMM Firmware Interface Table
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 20/45] hw/arm/virt: Introduce a RAS machine option
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (18 preceding siblings ...)
2020-05-14 14:21 ` [PULL 19/45] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 21/45] docs: APEI GHES generation and CPER record description Peter Maydell
` (25 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
RAS Virtualization feature is not supported now, so
add a RAS machine option and disable it by default.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200512030609.19593-3-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/hw/arm/virt.h | 1 +
hw/arm/virt.c | 23 +++++++++++++++++++++++
2 files changed, 24 insertions(+)
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index 6d67ace76e1..31878ddc722 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -132,6 +132,7 @@ typedef struct {
bool highmem_ecam;
bool its;
bool virt;
+ bool ras;
OnOffAuto acpi;
VirtGICType gic_version;
VirtIOMMUType iommu;
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 634db0cfe97..9e76fa7b01b 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1995,6 +1995,20 @@ static void virt_set_acpi(Object *obj, Visitor *v, const char *name,
visit_type_OnOffAuto(v, name, &vms->acpi, errp);
}
+static bool virt_get_ras(Object *obj, Error **errp)
+{
+ VirtMachineState *vms = VIRT_MACHINE(obj);
+
+ return vms->ras;
+}
+
+static void virt_set_ras(Object *obj, bool value, Error **errp)
+{
+ VirtMachineState *vms = VIRT_MACHINE(obj);
+
+ vms->ras = value;
+}
+
static char *virt_get_gic_version(Object *obj, Error **errp)
{
VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2327,6 +2341,15 @@ static void virt_instance_init(Object *obj)
"Valid values are none and smmuv3",
NULL);
+ /* Default disallows RAS instantiation */
+ vms->ras = false;
+ object_property_add_bool(obj, "ras", virt_get_ras,
+ virt_set_ras, NULL);
+ object_property_set_description(obj, "ras",
+ "Set on/off to enable/disable reporting host memory errors "
+ "to a KVM guest using ACPI and guest external abort exceptions",
+ NULL);
+
vms->irqmap = a15irqmap;
virt_flash_create(vms);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 21/45] docs: APEI GHES generation and CPER record description
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (19 preceding siblings ...)
2020-05-14 14:21 ` [PULL 20/45] hw/arm/virt: Introduce a RAS machine option Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 22/45] ACPI: Build related register address fields via hardware error fw_cfg blob Peter Maydell
` (24 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
Add APEI/GHES detailed design document
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200512030609.19593-4-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
docs/specs/acpi_hest_ghes.rst | 110 ++++++++++++++++++++++++++++++++++
docs/specs/index.rst | 1 +
2 files changed, 111 insertions(+)
create mode 100644 docs/specs/acpi_hest_ghes.rst
diff --git a/docs/specs/acpi_hest_ghes.rst b/docs/specs/acpi_hest_ghes.rst
new file mode 100644
index 00000000000..68f1fbe0a4a
--- /dev/null
+++ b/docs/specs/acpi_hest_ghes.rst
@@ -0,0 +1,110 @@
+APEI tables generating and CPER record
+======================================
+
+..
+ Copyright (c) 2020 HUAWEI TECHNOLOGIES CO., LTD.
+
+ This work is licensed under the terms of the GNU GPL, version 2 or later.
+ See the COPYING file in the top-level directory.
+
+Design Details
+--------------
+
+::
+
+ etc/acpi/tables etc/hardware_errors
+ ==================== ===============================
+ + +--------------------------+ +----------------------------+
+ | | HEST | +--------->| error_block_address1 |------+
+ | +--------------------------+ | +----------------------------+ |
+ | | GHES1 | | +------->| error_block_address2 |------+-+
+ | +--------------------------+ | | +----------------------------+ | |
+ | | ................. | | | | .............. | | |
+ | | error_status_address-----+-+ | -----------------------------+ | |
+ | | ................. | | +--->| error_block_addressN |------+-+---+
+ | | read_ack_register--------+-+ | | +----------------------------+ | | |
+ | | read_ack_preserve | +-+---+--->| read_ack_register1 | | | |
+ | | read_ack_write | | | +----------------------------+ | | |
+ + +--------------------------+ | +-+--->| read_ack_register2 | | | |
+ | | GHES2 | | | | +----------------------------+ | | |
+ + +--------------------------+ | | | | ............. | | | |
+ | | ................. | | | | +----------------------------+ | | |
+ | | error_status_address-----+---+ | | +->| read_ack_registerN | | | |
+ | | ................. | | | | +----------------------------+ | | |
+ | | read_ack_register--------+-----+ | | |Generic Error Status Block 1|<-----+ | |
+ | | read_ack_preserve | | | |-+------------------------+-+ | |
+ | | read_ack_write | | | | | CPER | | | |
+ + +--------------------------| | | | | CPER | | | |
+ | | ............... | | | | | .... | | | |
+ + +--------------------------+ | | | | CPER | | | |
+ | | GHESN | | | |-+------------------------+-| | |
+ + +--------------------------+ | | |Generic Error Status Block 2|<-------+ |
+ | | ................. | | | |-+------------------------+-+ |
+ | | error_status_address-----+-------+ | | | CPER | | |
+ | | ................. | | | | CPER | | |
+ | | read_ack_register--------+---------+ | | .... | | |
+ | | read_ack_preserve | | | CPER | | |
+ | | read_ack_write | +-+------------------------+-+ |
+ + +--------------------------+ | .......... | |
+ |----------------------------+ |
+ |Generic Error Status Block N |<----------+
+ |-+-------------------------+-+
+ | | CPER | |
+ | | CPER | |
+ | | .... | |
+ | | CPER | |
+ +-+-------------------------+-+
+
+
+(1) QEMU generates the ACPI HEST table. This table goes in the current
+ "etc/acpi/tables" fw_cfg blob. Each error source has different
+ notification types.
+
+(2) A new fw_cfg blob called "etc/hardware_errors" is introduced. QEMU
+ also needs to populate this blob. The "etc/hardware_errors" fw_cfg blob
+ contains an address registers table and an Error Status Data Block table.
+
+(3) The address registers table contains N Error Block Address entries
+ and N Read Ack Register entries. The size for each entry is 8-byte.
+ The Error Status Data Block table contains N Error Status Data Block
+ entries. The size for each entry is 4096(0x1000) bytes. The total size
+ for the "etc/hardware_errors" fw_cfg blob is (N * 8 * 2 + N * 4096) bytes.
+ N is the number of the kinds of hardware error sources.
+
+(4) QEMU generates the ACPI linker/loader script for the firmware. The
+ firmware pre-allocates memory for "etc/acpi/tables", "etc/hardware_errors"
+ and copies blob contents there.
+
+(5) QEMU generates N ADD_POINTER commands, which patch addresses in the
+ "error_status_address" fields of the HEST table with a pointer to the
+ corresponding "address registers" in the "etc/hardware_errors" blob.
+
+(6) QEMU generates N ADD_POINTER commands, which patch addresses in the
+ "read_ack_register" fields of the HEST table with a pointer to the
+ corresponding "read_ack_register" within the "etc/hardware_errors" blob.
+
+(7) QEMU generates N ADD_POINTER commands for the firmware, which patch
+ addresses in the "error_block_address" fields with a pointer to the
+ respective "Error Status Data Block" in the "etc/hardware_errors" blob.
+
+(8) QEMU defines a third and write-only fw_cfg blob which is called
+ "etc/hardware_errors_addr". Through that blob, the firmware can send back
+ the guest-side allocation addresses to QEMU. The "etc/hardware_errors_addr"
+ blob contains a 8-byte entry. QEMU generates a single WRITE_POINTER command
+ for the firmware. The firmware will write back the start address of
+ "etc/hardware_errors" blob to the fw_cfg file "etc/hardware_errors_addr".
+
+(9) When QEMU gets a SIGBUS from the kernel, QEMU writes CPER into corresponding
+ "Error Status Data Block", guest memory, and then injects platform specific
+ interrupt (in case of arm/virt machine it's Synchronous External Abort) as a
+ notification which is necessary for notifying the guest.
+
+(10) This notification (in virtual hardware) will be handled by the guest
+ kernel, on receiving notification, guest APEI driver could read the CPER error
+ and take appropriate action.
+
+(11) kvm_arch_on_sigbus_vcpu() uses source_id as index in "etc/hardware_errors" to
+ find out "Error Status Data Block" entry corresponding to error source. So supported
+ source_id values should be assigned here and not be changed afterwards to make sure
+ that guest will write error into expected "Error Status Data Block" even if guest was
+ migrated to a newer QEMU.
diff --git a/docs/specs/index.rst b/docs/specs/index.rst
index de46a8b5e7d..426632a4755 100644
--- a/docs/specs/index.rst
+++ b/docs/specs/index.rst
@@ -14,3 +14,4 @@ Contents:
ppc-spapr-xive
acpi_hw_reduced_hotplug
tpm
+ acpi_hest_ghes
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 22/45] ACPI: Build related register address fields via hardware error fw_cfg blob
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (20 preceding siblings ...)
2020-05-14 14:21 ` [PULL 21/45] docs: APEI GHES generation and CPER record description Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 23/45] ACPI: Build Hardware Error Source Table Peter Maydell
` (23 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
This patch builds error_block_address and read_ack_register fields
in hardware errors table , the error_block_address points to Generic
Error Status Block(GESB) via bios_linker. The max size for one GESB
is 1kb, For more detailed information, please refer to
document: docs/specs/acpi_hest_ghes.rst
Now we only support one Error source, if necessary, we can extend to
support more.
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200512030609.19593-5-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
default-configs/arm-softmmu.mak | 1 +
include/hw/acpi/aml-build.h | 1 +
include/hw/acpi/ghes.h | 28 +++++++++++
hw/acpi/aml-build.c | 2 +
hw/acpi/ghes.c | 89 +++++++++++++++++++++++++++++++++
hw/arm/virt-acpi-build.c | 5 ++
hw/acpi/Kconfig | 4 ++
hw/acpi/Makefile.objs | 1 +
8 files changed, 131 insertions(+)
create mode 100644 include/hw/acpi/ghes.h
create mode 100644 hw/acpi/ghes.c
diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index 36a0e89daae..8fc09a4a510 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -42,3 +42,4 @@ CONFIG_FSL_IMX7=y
CONFIG_FSL_IMX6UL=y
CONFIG_SEMIHOSTING=y
CONFIG_ALLWINNER_H3=y
+CONFIG_ACPI_APEI=y
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 1539fe06671..ed7c89309ef 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -220,6 +220,7 @@ struct AcpiBuildTables {
GArray *rsdp;
GArray *tcpalog;
GArray *vmgenid;
+ GArray *hardware_errors;
BIOSLinker *linker;
} AcpiBuildTables;
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
new file mode 100644
index 00000000000..50379b0d0ad
--- /dev/null
+++ b/include/hw/acpi/ghes.h
@@ -0,0 +1,28 @@
+/*
+ * Support for generating APEI tables and recording CPER for Guests
+ *
+ * Copyright (c) 2020 HUAWEI TECHNOLOGIES CO., LTD.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef ACPI_GHES_H
+#define ACPI_GHES_H
+
+#include "hw/acpi/bios-linker-loader.h"
+
+void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker);
+#endif
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 2c3702b8825..3681ec6e3d8 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1578,6 +1578,7 @@ void acpi_build_tables_init(AcpiBuildTables *tables)
tables->table_data = g_array_new(false, true /* clear */, 1);
tables->tcpalog = g_array_new(false, true /* clear */, 1);
tables->vmgenid = g_array_new(false, true /* clear */, 1);
+ tables->hardware_errors = g_array_new(false, true /* clear */, 1);
tables->linker = bios_linker_loader_init();
}
@@ -1588,6 +1589,7 @@ void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
g_array_free(tables->table_data, true);
g_array_free(tables->tcpalog, mfre);
g_array_free(tables->vmgenid, mfre);
+ g_array_free(tables->hardware_errors, mfre);
}
/*
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
new file mode 100644
index 00000000000..e1b3f8fcaa4
--- /dev/null
+++ b/hw/acpi/ghes.c
@@ -0,0 +1,89 @@
+/*
+ * Support for generating APEI tables and recording CPER for Guests
+ *
+ * Copyright (c) 2020 HUAWEI TECHNOLOGIES CO., LTD.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/acpi/ghes.h"
+#include "hw/acpi/aml-build.h"
+
+#define ACPI_GHES_ERRORS_FW_CFG_FILE "etc/hardware_errors"
+#define ACPI_GHES_DATA_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
+
+/* The max size in bytes for one error block */
+#define ACPI_GHES_MAX_RAW_DATA_LENGTH (1 * KiB)
+
+/* Now only support ARMv8 SEA notification type error source */
+#define ACPI_GHES_ERROR_SOURCE_COUNT 1
+
+/*
+ * Build table for the hardware error fw_cfg blob.
+ * Initialize "etc/hardware_errors" and "etc/hardware_errors_addr" fw_cfg blobs.
+ * See docs/specs/acpi_hest_ghes.rst for blobs format.
+ */
+void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
+{
+ int i, error_status_block_offset;
+
+ /* Build error_block_address */
+ for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
+ build_append_int_noprefix(hardware_errors, 0, sizeof(uint64_t));
+ }
+
+ /* Build read_ack_register */
+ for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
+ /*
+ * Initialize the value of read_ack_register to 1, so GHES can be
+ * writeable after (re)boot.
+ * ACPI 6.2: 18.3.2.8 Generic Hardware Error Source version 2
+ * (GHESv2 - Type 10)
+ */
+ build_append_int_noprefix(hardware_errors, 1, sizeof(uint64_t));
+ }
+
+ /* Generic Error Status Block offset in the hardware error fw_cfg blob */
+ error_status_block_offset = hardware_errors->len;
+
+ /* Reserve space for Error Status Data Block */
+ acpi_data_push(hardware_errors,
+ ACPI_GHES_MAX_RAW_DATA_LENGTH * ACPI_GHES_ERROR_SOURCE_COUNT);
+
+ /* Tell guest firmware to place hardware_errors blob into RAM */
+ bios_linker_loader_alloc(linker, ACPI_GHES_ERRORS_FW_CFG_FILE,
+ hardware_errors, sizeof(uint64_t), false);
+
+ for (i = 0; i < ACPI_GHES_ERROR_SOURCE_COUNT; i++) {
+ /*
+ * Tell firmware to patch error_block_address entries to point to
+ * corresponding "Generic Error Status Block"
+ */
+ bios_linker_loader_add_pointer(linker,
+ ACPI_GHES_ERRORS_FW_CFG_FILE, sizeof(uint64_t) * i,
+ sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE,
+ error_status_block_offset + i * ACPI_GHES_MAX_RAW_DATA_LENGTH);
+ }
+
+ /*
+ * tell firmware to write hardware_errors GPA into
+ * hardware_errors_addr fw_cfg, once the former has been initialized.
+ */
+ bios_linker_loader_write_pointer(linker, ACPI_GHES_DATA_ADDR_FW_CFG_FILE,
+ 0, sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE, 0);
+}
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index f22b1e60977..8397bda4248 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -49,6 +49,7 @@
#include "sysemu/reset.h"
#include "kvm_arm.h"
#include "migration/vmstate.h"
+#include "hw/acpi/ghes.h"
#define ARM_SPI_BASE 32
@@ -818,6 +819,10 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
acpi_add_table(table_offsets, tables_blob);
build_spcr(tables_blob, tables->linker, vms);
+ if (vms->ras) {
+ build_ghes_error_table(tables->hardware_errors, tables->linker);
+ }
+
if (ms->numa_state->num_nodes > 0) {
acpi_add_table(table_offsets, tables_blob);
build_srat(tables_blob, tables->linker, vms);
diff --git a/hw/acpi/Kconfig b/hw/acpi/Kconfig
index 54209c6f2f1..1932f66af8d 100644
--- a/hw/acpi/Kconfig
+++ b/hw/acpi/Kconfig
@@ -28,6 +28,10 @@ config ACPI_HMAT
bool
depends on ACPI
+config ACPI_APEI
+ bool
+ depends on ACPI
+
config ACPI_PCI
bool
depends on ACPI && PCI
diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs
index cab9bcd457d..72886c79657 100644
--- a/hw/acpi/Makefile.objs
+++ b/hw/acpi/Makefile.objs
@@ -8,6 +8,7 @@ common-obj-$(CONFIG_ACPI_NVDIMM) += nvdimm.o
common-obj-$(CONFIG_ACPI_VMGENID) += vmgenid.o
common-obj-$(CONFIG_ACPI_HW_REDUCED) += generic_event_device.o
common-obj-$(CONFIG_ACPI_HMAT) += hmat.o
+common-obj-$(CONFIG_ACPI_APEI) += ghes.o
common-obj-$(call lnot,$(CONFIG_ACPI_X86)) += acpi-stub.o
common-obj-$(call lnot,$(CONFIG_PC)) += acpi-x86-stub.o
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 23/45] ACPI: Build Hardware Error Source Table
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (21 preceding siblings ...)
2020-05-14 14:21 ` [PULL 22/45] ACPI: Build related register address fields via hardware error fw_cfg blob Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 24/45] ACPI: Record the Generic Error Status Block address Peter Maydell
` (22 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
This patch builds Hardware Error Source Table(HEST) via fw_cfg blobs.
Now it only supports ARMv8 SEA, a type of Generic Hardware Error
Source version 2(GHESv2) error source. Afterwards, we can extend
the supported types if needed. For the CPER section, currently it
is memory section because kernel mainly wants userspace to handle
the memory errors.
This patch follows the spec ACPI 6.2 to build the Hardware Error
Source table. For more detailed information, please refer to
document: docs/specs/acpi_hest_ghes.rst
build_ghes_hw_error_notification() helper will help to add Hardware
Error Notification to ACPI tables without using packed C structures
and avoid endianness issues as API doesn't need explicit conversion.
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200512030609.19593-6-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/hw/acpi/ghes.h | 39 ++++++++++++
hw/acpi/ghes.c | 126 +++++++++++++++++++++++++++++++++++++++
hw/arm/virt-acpi-build.c | 2 +
3 files changed, 167 insertions(+)
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 50379b0d0ad..18debd8cf7c 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -24,5 +24,44 @@
#include "hw/acpi/bios-linker-loader.h"
+/*
+ * Values for Hardware Error Notification Type field
+ */
+enum AcpiGhesNotifyType {
+ /* Polled */
+ ACPI_GHES_NOTIFY_POLLED = 0,
+ /* External Interrupt */
+ ACPI_GHES_NOTIFY_EXTERNAL = 1,
+ /* Local Interrupt */
+ ACPI_GHES_NOTIFY_LOCAL = 2,
+ /* SCI */
+ ACPI_GHES_NOTIFY_SCI = 3,
+ /* NMI */
+ ACPI_GHES_NOTIFY_NMI = 4,
+ /* CMCI, ACPI 5.0: 18.3.2.7, Table 18-290 */
+ ACPI_GHES_NOTIFY_CMCI = 5,
+ /* MCE, ACPI 5.0: 18.3.2.7, Table 18-290 */
+ ACPI_GHES_NOTIFY_MCE = 6,
+ /* GPIO-Signal, ACPI 6.0: 18.3.2.7, Table 18-332 */
+ ACPI_GHES_NOTIFY_GPIO = 7,
+ /* ARMv8 SEA, ACPI 6.1: 18.3.2.9, Table 18-345 */
+ ACPI_GHES_NOTIFY_SEA = 8,
+ /* ARMv8 SEI, ACPI 6.1: 18.3.2.9, Table 18-345 */
+ ACPI_GHES_NOTIFY_SEI = 9,
+ /* External Interrupt - GSIV, ACPI 6.1: 18.3.2.9, Table 18-345 */
+ ACPI_GHES_NOTIFY_GSIV = 10,
+ /* Software Delegated Exception, ACPI 6.2: 18.3.2.9, Table 18-383 */
+ ACPI_GHES_NOTIFY_SDEI = 11,
+ /* 12 and greater are reserved */
+ ACPI_GHES_NOTIFY_RESERVED = 12
+};
+
+enum {
+ ACPI_HEST_SRC_ID_SEA = 0,
+ /* future ids go here */
+ ACPI_HEST_SRC_ID_RESERVED,
+};
+
void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker);
+void acpi_build_hest(GArray *table_data, BIOSLinker *linker);
#endif
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index e1b3f8fcaa4..091fd87094e 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -23,6 +23,7 @@
#include "qemu/units.h"
#include "hw/acpi/ghes.h"
#include "hw/acpi/aml-build.h"
+#include "qemu/error-report.h"
#define ACPI_GHES_ERRORS_FW_CFG_FILE "etc/hardware_errors"
#define ACPI_GHES_DATA_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
@@ -33,6 +34,42 @@
/* Now only support ARMv8 SEA notification type error source */
#define ACPI_GHES_ERROR_SOURCE_COUNT 1
+/* Generic Hardware Error Source version 2 */
+#define ACPI_GHES_SOURCE_GENERIC_ERROR_V2 10
+
+/* Address offset in Generic Address Structure(GAS) */
+#define GAS_ADDR_OFFSET 4
+
+/*
+ * Hardware Error Notification
+ * ACPI 4.0: 17.3.2.7 Hardware Error Notification
+ * Composes dummy Hardware Error Notification descriptor of specified type
+ */
+static void build_ghes_hw_error_notification(GArray *table, const uint8_t type)
+{
+ /* Type */
+ build_append_int_noprefix(table, type, 1);
+ /*
+ * Length:
+ * Total length of the structure in bytes
+ */
+ build_append_int_noprefix(table, 28, 1);
+ /* Configuration Write Enable */
+ build_append_int_noprefix(table, 0, 2);
+ /* Poll Interval */
+ build_append_int_noprefix(table, 0, 4);
+ /* Vector */
+ build_append_int_noprefix(table, 0, 4);
+ /* Switch To Polling Threshold Value */
+ build_append_int_noprefix(table, 0, 4);
+ /* Switch To Polling Threshold Window */
+ build_append_int_noprefix(table, 0, 4);
+ /* Error Threshold Value */
+ build_append_int_noprefix(table, 0, 4);
+ /* Error Threshold Window */
+ build_append_int_noprefix(table, 0, 4);
+}
+
/*
* Build table for the hardware error fw_cfg blob.
* Initialize "etc/hardware_errors" and "etc/hardware_errors_addr" fw_cfg blobs.
@@ -87,3 +124,92 @@ void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker)
bios_linker_loader_write_pointer(linker, ACPI_GHES_DATA_ADDR_FW_CFG_FILE,
0, sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE, 0);
}
+
+/* Build Generic Hardware Error Source version 2 (GHESv2) */
+static void build_ghes_v2(GArray *table_data, int source_id, BIOSLinker *linker)
+{
+ uint64_t address_offset;
+ /*
+ * Type:
+ * Generic Hardware Error Source version 2(GHESv2 - Type 10)
+ */
+ build_append_int_noprefix(table_data, ACPI_GHES_SOURCE_GENERIC_ERROR_V2, 2);
+ /* Source Id */
+ build_append_int_noprefix(table_data, source_id, 2);
+ /* Related Source Id */
+ build_append_int_noprefix(table_data, 0xffff, 2);
+ /* Flags */
+ build_append_int_noprefix(table_data, 0, 1);
+ /* Enabled */
+ build_append_int_noprefix(table_data, 1, 1);
+
+ /* Number of Records To Pre-allocate */
+ build_append_int_noprefix(table_data, 1, 4);
+ /* Max Sections Per Record */
+ build_append_int_noprefix(table_data, 1, 4);
+ /* Max Raw Data Length */
+ build_append_int_noprefix(table_data, ACPI_GHES_MAX_RAW_DATA_LENGTH, 4);
+
+ address_offset = table_data->len;
+ /* Error Status Address */
+ build_append_gas(table_data, AML_AS_SYSTEM_MEMORY, 0x40, 0,
+ 4 /* QWord access */, 0);
+ bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
+ address_offset + GAS_ADDR_OFFSET, sizeof(uint64_t),
+ ACPI_GHES_ERRORS_FW_CFG_FILE, source_id * sizeof(uint64_t));
+
+ switch (source_id) {
+ case ACPI_HEST_SRC_ID_SEA:
+ /*
+ * Notification Structure
+ * Now only enable ARMv8 SEA notification type
+ */
+ build_ghes_hw_error_notification(table_data, ACPI_GHES_NOTIFY_SEA);
+ break;
+ default:
+ error_report("Not support this error source");
+ abort();
+ }
+
+ /* Error Status Block Length */
+ build_append_int_noprefix(table_data, ACPI_GHES_MAX_RAW_DATA_LENGTH, 4);
+
+ /*
+ * Read Ack Register
+ * ACPI 6.1: 18.3.2.8 Generic Hardware Error Source
+ * version 2 (GHESv2 - Type 10)
+ */
+ address_offset = table_data->len;
+ build_append_gas(table_data, AML_AS_SYSTEM_MEMORY, 0x40, 0,
+ 4 /* QWord access */, 0);
+ bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
+ address_offset + GAS_ADDR_OFFSET,
+ sizeof(uint64_t), ACPI_GHES_ERRORS_FW_CFG_FILE,
+ (ACPI_GHES_ERROR_SOURCE_COUNT + source_id) * sizeof(uint64_t));
+
+ /*
+ * Read Ack Preserve field
+ * We only provide the first bit in Read Ack Register to OSPM to write
+ * while the other bits are preserved.
+ */
+ build_append_int_noprefix(table_data, ~0x1ULL, 8);
+ /* Read Ack Write */
+ build_append_int_noprefix(table_data, 0x1, 8);
+}
+
+/* Build Hardware Error Source Table */
+void acpi_build_hest(GArray *table_data, BIOSLinker *linker)
+{
+ uint64_t hest_start = table_data->len;
+
+ /* Hardware Error Source Table header*/
+ acpi_data_push(table_data, sizeof(AcpiTableHeader));
+
+ /* Error Source Count */
+ build_append_int_noprefix(table_data, ACPI_GHES_ERROR_SOURCE_COUNT, 4);
+
+ build_ghes_v2(table_data, ACPI_HEST_SRC_ID_SEA, linker);
+
+ build_header(linker, table_data, (void *)(table_data->data + hest_start),
+ "HEST", table_data->len - hest_start, 1, NULL, NULL);
+}
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 8397bda4248..ef94e034f6d 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -821,6 +821,8 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
if (vms->ras) {
build_ghes_error_table(tables->hardware_errors, tables->linker);
+ acpi_add_table(table_offsets, tables_blob);
+ acpi_build_hest(tables_blob, tables->linker);
}
if (ms->numa_state->num_nodes > 0) {
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 24/45] ACPI: Record the Generic Error Status Block address
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (22 preceding siblings ...)
2020-05-14 14:21 ` [PULL 23/45] ACPI: Build Hardware Error Source Table Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 25/45] KVM: Move hwpoison page related functions into kvm-all.c Peter Maydell
` (21 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
Record the GHEB address via fw_cfg file, when recording
a error to CPER, it will use this address to find out
Generic Error Data Entries and write the error.
In order to avoid migration failure, make hardware
error table address to a part of GED device instead
of global variable, then this address will be migrated
to target QEMU.
Acked-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200512030609.19593-7-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/hw/acpi/generic_event_device.h | 2 ++
include/hw/acpi/ghes.h | 6 ++++++
hw/acpi/generic_event_device.c | 19 +++++++++++++++++++
hw/acpi/ghes.c | 14 ++++++++++++++
hw/arm/virt-acpi-build.c | 8 ++++++++
5 files changed, 49 insertions(+)
diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h
index 9eb86ca4fd9..83917de0242 100644
--- a/include/hw/acpi/generic_event_device.h
+++ b/include/hw/acpi/generic_event_device.h
@@ -61,6 +61,7 @@
#include "hw/sysbus.h"
#include "hw/acpi/memory_hotplug.h"
+#include "hw/acpi/ghes.h"
#define ACPI_POWER_BUTTON_DEVICE "PWRB"
@@ -96,6 +97,7 @@ typedef struct AcpiGedState {
GEDState ged_state;
uint32_t ged_event_bitmap;
qemu_irq irq;
+ AcpiGhesState ghes_state;
} AcpiGedState;
void build_ged_aml(Aml *table, const char* name, HotplugHandler *hotplug_dev,
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index 18debd8cf7c..a3420fc9be8 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -62,6 +62,12 @@ enum {
ACPI_HEST_SRC_ID_RESERVED,
};
+typedef struct AcpiGhesState {
+ uint64_t ghes_addr_le;
+} AcpiGhesState;
+
void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker);
void acpi_build_hest(GArray *table_data, BIOSLinker *linker);
+void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
+ GArray *hardware_errors);
#endif
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 5d17f78a1e0..b1cbdd86b66 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -247,6 +247,24 @@ static const VMStateDescription vmstate_ged_state = {
}
};
+static bool ghes_needed(void *opaque)
+{
+ AcpiGedState *s = opaque;
+ return s->ghes_state.ghes_addr_le;
+}
+
+static const VMStateDescription vmstate_ghes_state = {
+ .name = "acpi-ged/ghes",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = ghes_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(ghes_state, AcpiGedState, 1,
+ vmstate_ghes_state, AcpiGhesState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_acpi_ged = {
.name = "acpi-ged",
.version_id = 1,
@@ -257,6 +275,7 @@ static const VMStateDescription vmstate_acpi_ged = {
},
.subsections = (const VMStateDescription * []) {
&vmstate_memhp_state,
+ &vmstate_ghes_state,
NULL
}
};
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 091fd87094e..e74af23c366 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -24,6 +24,8 @@
#include "hw/acpi/ghes.h"
#include "hw/acpi/aml-build.h"
#include "qemu/error-report.h"
+#include "hw/acpi/generic_event_device.h"
+#include "hw/nvram/fw_cfg.h"
#define ACPI_GHES_ERRORS_FW_CFG_FILE "etc/hardware_errors"
#define ACPI_GHES_DATA_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
@@ -213,3 +215,15 @@ void acpi_build_hest(GArray *table_data, BIOSLinker *linker)
build_header(linker, table_data, (void *)(table_data->data + hest_start),
"HEST", table_data->len - hest_start, 1, NULL, NULL);
}
+
+void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
+ GArray *hardware_error)
+{
+ /* Create a read-only fw_cfg file for GHES */
+ fw_cfg_add_file(s, ACPI_GHES_ERRORS_FW_CFG_FILE, hardware_error->data,
+ hardware_error->len);
+
+ /* Create a read-write fw_cfg file for Address */
+ fw_cfg_add_file_callback(s, ACPI_GHES_DATA_ADDR_FW_CFG_FILE, NULL, NULL,
+ NULL, &(ags->ghes_addr_le), sizeof(ags->ghes_addr_le), false);
+}
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index ef94e034f6d..1b0a584c7b6 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -917,6 +917,7 @@ void virt_acpi_setup(VirtMachineState *vms)
{
AcpiBuildTables tables;
AcpiBuildState *build_state;
+ AcpiGedState *acpi_ged_state;
if (!vms->fw_cfg) {
trace_virt_acpi_setup();
@@ -947,6 +948,13 @@ void virt_acpi_setup(VirtMachineState *vms)
fw_cfg_add_file(vms->fw_cfg, ACPI_BUILD_TPMLOG_FILE, tables.tcpalog->data,
acpi_data_len(tables.tcpalog));
+ if (vms->ras) {
+ assert(vms->acpi_dev);
+ acpi_ged_state = ACPI_GED(vms->acpi_dev);
+ acpi_ghes_add_fw_cfg(&acpi_ged_state->ghes_state,
+ vms->fw_cfg, tables.hardware_errors);
+ }
+
build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update,
build_state, tables.rsdp,
ACPI_BUILD_RSDP_FILE, 0);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 25/45] KVM: Move hwpoison page related functions into kvm-all.c
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (23 preceding siblings ...)
2020-05-14 14:21 ` [PULL 24/45] ACPI: Record the Generic Error Status Block address Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table Peter Maydell
` (20 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
kvm_hwpoison_page_add() and kvm_unpoison_all() will both
be used by X86 and ARM platforms, so moving them into
"accel/kvm/kvm-all.c" to avoid duplicate code.
For architectures that don't use the poison-list functionality
the reset handler will harmlessly do nothing, so let's register
the kvm_unpoison_all() function in the generic kvm_init() function.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Acked-by: Xiang Zheng <zhengxiang9@huawei.com>
Message-id: 20200512030609.19593-8-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/sysemu/kvm_int.h | 12 ++++++++++++
accel/kvm/kvm-all.c | 36 ++++++++++++++++++++++++++++++++++++
target/i386/kvm.c | 36 ------------------------------------
3 files changed, 48 insertions(+), 36 deletions(-)
diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h
index ac2d1f8b568..c660a70c51a 100644
--- a/include/sysemu/kvm_int.h
+++ b/include/sysemu/kvm_int.h
@@ -42,4 +42,16 @@ void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml,
AddressSpace *as, int as_id);
void kvm_set_max_memslot_size(hwaddr max_slot_size);
+
+/**
+ * kvm_hwpoison_page_add:
+ *
+ * Parameters:
+ * @ram_addr: the address in the RAM for the poisoned page
+ *
+ * Add a poisoned page to the list
+ *
+ * Return: None.
+ */
+void kvm_hwpoison_page_add(ram_addr_t ram_addr);
#endif
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 439a4efe526..36be11795d4 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -44,6 +44,7 @@
#include "qapi/visitor.h"
#include "qapi/qapi-types-common.h"
#include "qapi/qapi-visit-common.h"
+#include "sysemu/reset.h"
#include "hw/boards.h"
@@ -883,6 +884,39 @@ int kvm_vm_check_extension(KVMState *s, unsigned int extension)
return ret;
}
+typedef struct HWPoisonPage {
+ ram_addr_t ram_addr;
+ QLIST_ENTRY(HWPoisonPage) list;
+} HWPoisonPage;
+
+static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
+ QLIST_HEAD_INITIALIZER(hwpoison_page_list);
+
+static void kvm_unpoison_all(void *param)
+{
+ HWPoisonPage *page, *next_page;
+
+ QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) {
+ QLIST_REMOVE(page, list);
+ qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE);
+ g_free(page);
+ }
+}
+
+void kvm_hwpoison_page_add(ram_addr_t ram_addr)
+{
+ HWPoisonPage *page;
+
+ QLIST_FOREACH(page, &hwpoison_page_list, list) {
+ if (page->ram_addr == ram_addr) {
+ return;
+ }
+ }
+ page = g_new(HWPoisonPage, 1);
+ page->ram_addr = ram_addr;
+ QLIST_INSERT_HEAD(&hwpoison_page_list, page, list);
+}
+
static uint32_t adjust_ioeventfd_endianness(uint32_t val, uint32_t size)
{
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
@@ -2085,6 +2119,8 @@ static int kvm_init(MachineState *ms)
s->kernel_irqchip_split = mc->default_kernel_irqchip_split ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF;
}
+ qemu_register_reset(kvm_unpoison_all, NULL);
+
if (s->kernel_irqchip_allowed) {
kvm_irqchip_create(s);
}
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 4901c6dd747..34f838728dd 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -24,7 +24,6 @@
#include "sysemu/sysemu.h"
#include "sysemu/hw_accel.h"
#include "sysemu/kvm_int.h"
-#include "sysemu/reset.h"
#include "sysemu/runstate.h"
#include "kvm_i386.h"
#include "hyperv.h"
@@ -533,40 +532,6 @@ uint64_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index)
}
}
-
-typedef struct HWPoisonPage {
- ram_addr_t ram_addr;
- QLIST_ENTRY(HWPoisonPage) list;
-} HWPoisonPage;
-
-static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
- QLIST_HEAD_INITIALIZER(hwpoison_page_list);
-
-static void kvm_unpoison_all(void *param)
-{
- HWPoisonPage *page, *next_page;
-
- QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) {
- QLIST_REMOVE(page, list);
- qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE);
- g_free(page);
- }
-}
-
-static void kvm_hwpoison_page_add(ram_addr_t ram_addr)
-{
- HWPoisonPage *page;
-
- QLIST_FOREACH(page, &hwpoison_page_list, list) {
- if (page->ram_addr == ram_addr) {
- return;
- }
- }
- page = g_new(HWPoisonPage, 1);
- page->ram_addr = ram_addr;
- QLIST_INSERT_HEAD(&hwpoison_page_list, page, list);
-}
-
static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap,
int *max_banks)
{
@@ -2180,7 +2145,6 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
fprintf(stderr, "e820_add_entry() table is full\n");
return ret;
}
- qemu_register_reset(kvm_unpoison_all, NULL);
shadow_mem = object_property_get_int(OBJECT(s), "kvm-shadow-mem", &error_abort);
if (shadow_mem != -1) {
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (24 preceding siblings ...)
2020-05-14 14:21 ` [PULL 25/45] KVM: Move hwpoison page related functions into kvm-all.c Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-21 13:03 ` Peter Maydell
2020-05-14 14:21 ` [PULL 27/45] target-arm: kvm64: handle SIGBUS signal from kernel or KVM Peter Maydell
` (19 subsequent siblings)
45 siblings, 1 reply; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
kvm_arch_on_sigbus_vcpu() error injection uses source_id as
index in etc/hardware_errors to find out Error Status Data
Block entry corresponding to error source. So supported source_id
values should be assigned here and not be changed afterwards to
make sure that guest will write error into expected Error Status
Data Block.
Before QEMU writes a new error to ACPI table, it will check whether
previous error has been acknowledged. If not acknowledged, the new
errors will be ignored and not be recorded. For the errors section
type, QEMU simulate it to memory section error.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200512030609.19593-9-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/hw/acpi/ghes.h | 1 +
hw/acpi/ghes.c | 219 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 220 insertions(+)
diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h
index a3420fc9be8..4ad025e09ae 100644
--- a/include/hw/acpi/ghes.h
+++ b/include/hw/acpi/ghes.h
@@ -70,4 +70,5 @@ void build_ghes_error_table(GArray *hardware_errors, BIOSLinker *linker);
void acpi_build_hest(GArray *table_data, BIOSLinker *linker);
void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s,
GArray *hardware_errors);
+int acpi_ghes_record_errors(uint8_t notify, uint64_t error_physical_addr);
#endif
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index e74af23c366..b363bc331d0 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -26,6 +26,7 @@
#include "qemu/error-report.h"
#include "hw/acpi/generic_event_device.h"
#include "hw/nvram/fw_cfg.h"
+#include "qemu/uuid.h"
#define ACPI_GHES_ERRORS_FW_CFG_FILE "etc/hardware_errors"
#define ACPI_GHES_DATA_ADDR_FW_CFG_FILE "etc/hardware_errors_addr"
@@ -42,6 +43,36 @@
/* Address offset in Generic Address Structure(GAS) */
#define GAS_ADDR_OFFSET 4
+/*
+ * The total size of Generic Error Data Entry
+ * ACPI 6.1/6.2: 18.3.2.7.1 Generic Error Data,
+ * Table 18-343 Generic Error Data Entry
+ */
+#define ACPI_GHES_DATA_LENGTH 72
+
+/* The memory section CPER size, UEFI 2.6: N.2.5 Memory Error Section */
+#define ACPI_GHES_MEM_CPER_LENGTH 80
+
+/* Masks for block_status flags */
+#define ACPI_GEBS_UNCORRECTABLE 1
+
+/*
+ * Total size for Generic Error Status Block except Generic Error Data Entries
+ * ACPI 6.2: 18.3.2.7.1 Generic Error Data,
+ * Table 18-380 Generic Error Status Block
+ */
+#define ACPI_GHES_GESB_SIZE 20
+
+/*
+ * Values for error_severity field
+ */
+enum AcpiGenericErrorSeverity {
+ ACPI_CPER_SEV_RECOVERABLE = 0,
+ ACPI_CPER_SEV_FATAL = 1,
+ ACPI_CPER_SEV_CORRECTED = 2,
+ ACPI_CPER_SEV_NONE = 3,
+};
+
/*
* Hardware Error Notification
* ACPI 4.0: 17.3.2.7 Hardware Error Notification
@@ -72,6 +103,138 @@ static void build_ghes_hw_error_notification(GArray *table, const uint8_t type)
build_append_int_noprefix(table, 0, 4);
}
+/*
+ * Generic Error Data Entry
+ * ACPI 6.1: 18.3.2.7.1 Generic Error Data
+ */
+static void acpi_ghes_generic_error_data(GArray *table,
+ const uint8_t *section_type, uint32_t error_severity,
+ uint8_t validation_bits, uint8_t flags,
+ uint32_t error_data_length, QemuUUID fru_id,
+ uint64_t time_stamp)
+{
+ const uint8_t fru_text[20] = {0};
+
+ /* Section Type */
+ g_array_append_vals(table, section_type, 16);
+
+ /* Error Severity */
+ build_append_int_noprefix(table, error_severity, 4);
+ /* Revision */
+ build_append_int_noprefix(table, 0x300, 2);
+ /* Validation Bits */
+ build_append_int_noprefix(table, validation_bits, 1);
+ /* Flags */
+ build_append_int_noprefix(table, flags, 1);
+ /* Error Data Length */
+ build_append_int_noprefix(table, error_data_length, 4);
+
+ /* FRU Id */
+ g_array_append_vals(table, fru_id.data, ARRAY_SIZE(fru_id.data));
+
+ /* FRU Text */
+ g_array_append_vals(table, fru_text, sizeof(fru_text));
+
+ /* Timestamp */
+ build_append_int_noprefix(table, time_stamp, 8);
+}
+
+/*
+ * Generic Error Status Block
+ * ACPI 6.1: 18.3.2.7.1 Generic Error Data
+ */
+static void acpi_ghes_generic_error_status(GArray *table, uint32_t block_status,
+ uint32_t raw_data_offset, uint32_t raw_data_length,
+ uint32_t data_length, uint32_t error_severity)
+{
+ /* Block Status */
+ build_append_int_noprefix(table, block_status, 4);
+ /* Raw Data Offset */
+ build_append_int_noprefix(table, raw_data_offset, 4);
+ /* Raw Data Length */
+ build_append_int_noprefix(table, raw_data_length, 4);
+ /* Data Length */
+ build_append_int_noprefix(table, data_length, 4);
+ /* Error Severity */
+ build_append_int_noprefix(table, error_severity, 4);
+}
+
+/* UEFI 2.6: N.2.5 Memory Error Section */
+static void acpi_ghes_build_append_mem_cper(GArray *table,
+ uint64_t error_physical_addr)
+{
+ /*
+ * Memory Error Record
+ */
+
+ /* Validation Bits */
+ build_append_int_noprefix(table,
+ (1ULL << 14) | /* Type Valid */
+ (1ULL << 1) /* Physical Address Valid */,
+ 8);
+ /* Error Status */
+ build_append_int_noprefix(table, 0, 8);
+ /* Physical Address */
+ build_append_int_noprefix(table, error_physical_addr, 8);
+ /* Skip all the detailed information normally found in such a record */
+ build_append_int_noprefix(table, 0, 48);
+ /* Memory Error Type */
+ build_append_int_noprefix(table, 0 /* Unknown error */, 1);
+ /* Skip all the detailed information normally found in such a record */
+ build_append_int_noprefix(table, 0, 7);
+}
+
+static int acpi_ghes_record_mem_error(uint64_t error_block_address,
+ uint64_t error_physical_addr)
+{
+ GArray *block;
+
+ /* Memory Error Section Type */
+ const uint8_t uefi_cper_mem_sec[] =
+ UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
+ 0xED, 0x7C, 0x83, 0xB1);
+
+ /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data,
+ * Table 17-13 Generic Error Data Entry
+ */
+ QemuUUID fru_id = {};
+ uint32_t data_length;
+
+ block = g_array_new(false, true /* clear */, 1);
+
+ /* This is the length if adding a new generic error data entry*/
+ data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
+
+ /*
+ * Check whether it will run out of the preallocated memory if adding a new
+ * generic error data entry
+ */
+ if ((data_length + ACPI_GHES_GESB_SIZE) > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
+ error_report("Not enough memory to record new CPER!!!");
+ g_array_free(block, true);
+ return -1;
+ }
+
+ /* Build the new generic error status block header */
+ acpi_ghes_generic_error_status(block, ACPI_GEBS_UNCORRECTABLE,
+ 0, 0, data_length, ACPI_CPER_SEV_RECOVERABLE);
+
+ /* Build this new generic error data entry header */
+ acpi_ghes_generic_error_data(block, uefi_cper_mem_sec,
+ ACPI_CPER_SEV_RECOVERABLE, 0, 0,
+ ACPI_GHES_MEM_CPER_LENGTH, fru_id, 0);
+
+ /* Build the memory section CPER for above new generic error data entry */
+ acpi_ghes_build_append_mem_cper(block, error_physical_addr);
+
+ /* Write the generic error data entry into guest memory */
+ cpu_physical_memory_write(error_block_address, block->data, block->len);
+
+ g_array_free(block, true);
+
+ return 0;
+}
+
/*
* Build table for the hardware error fw_cfg blob.
* Initialize "etc/hardware_errors" and "etc/hardware_errors_addr" fw_cfg blobs.
@@ -227,3 +390,59 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
fw_cfg_add_file_callback(s, ACPI_GHES_DATA_ADDR_FW_CFG_FILE, NULL, NULL,
NULL, &(ags->ghes_addr_le), sizeof(ags->ghes_addr_le), false);
}
+
+int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
+{
+ uint64_t error_block_addr, read_ack_register_addr, read_ack_register = 0;
+ uint64_t start_addr;
+ bool ret = -1;
+ AcpiGedState *acpi_ged_state;
+ AcpiGhesState *ags;
+
+ assert(source_id < ACPI_HEST_SRC_ID_RESERVED);
+
+ acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED,
+ NULL));
+ g_assert(acpi_ged_state);
+ ags = &acpi_ged_state->ghes_state;
+
+ start_addr = le64_to_cpu(ags->ghes_addr_le);
+
+ if (physical_address) {
+
+ if (source_id < ACPI_HEST_SRC_ID_RESERVED) {
+ start_addr += source_id * sizeof(uint64_t);
+ }
+
+ cpu_physical_memory_read(start_addr, &error_block_addr,
+ sizeof(error_block_addr));
+
+ error_block_addr = le64_to_cpu(error_block_addr);
+
+ read_ack_register_addr = start_addr +
+ ACPI_GHES_ERROR_SOURCE_COUNT * sizeof(uint64_t);
+
+ cpu_physical_memory_read(read_ack_register_addr,
+ &read_ack_register, sizeof(read_ack_register));
+
+ /* zero means OSPM does not acknowledge the error */
+ if (!read_ack_register) {
+ error_report("OSPM does not acknowledge previous error,"
+ " so can not record CPER for current error anymore");
+ } else if (error_block_addr) {
+ read_ack_register = cpu_to_le64(0);
+ /*
+ * Clear the Read Ack Register, OSPM will write it to 1 when
+ * it acknowledges this error.
+ */
+ cpu_physical_memory_write(read_ack_register_addr,
+ &read_ack_register, sizeof(uint64_t));
+
+ ret = acpi_ghes_record_mem_error(error_block_addr,
+ physical_address);
+ } else
+ error_report("can not find Generic Error Status Block");
+ }
+
+ return ret;
+}
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 27/45] target-arm: kvm64: handle SIGBUS signal from kernel or KVM
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (25 preceding siblings ...)
2020-05-14 14:21 ` [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 28/45] MAINTAINERS: Add ACPI/HEST/GHES entries Peter Maydell
` (18 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
Add a SIGBUS signal handler. In this handler, it checks the SIGBUS type,
translates the host VA delivered by host to guest PA, then fills this PA
to guest APEI GHES memory, then notifies guest according to the SIGBUS
type.
When guest accesses the poisoned memory, it will generate a Synchronous
External Abort(SEA). Then host kernel gets an APEI notification and calls
memory_failure() to unmapped the affected page in stage 2, finally
returns to guest.
Guest continues to access the PG_hwpoison page, it will trap to KVM as
stage2 fault, then a SIGBUS_MCEERR_AR synchronous signal is delivered to
Qemu, Qemu records this error address into guest APEI GHES memory and
notifes guest using Synchronous-External-Abort(SEA).
In order to inject a vSEA, we introduce the kvm_inject_arm_sea() function
in which we can setup the type of exception and the syndrome information.
When switching to guest, the target vcpu will jump to the synchronous
external abort vector table entry.
The ESR_ELx.DFSC is set to synchronous external abort(0x10), and the
ESR_ELx.FnV is set to not valid(0x1), which will tell guest that FAR is
not valid and hold an UNKNOWN value. These values will be set to KVM
register structures through KVM_SET_ONE_REG IOCTL.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200512030609.19593-10-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/sysemu/kvm.h | 3 +-
target/arm/cpu.h | 4 +++
target/arm/internals.h | 5 +--
target/i386/cpu.h | 2 ++
target/arm/helper.c | 2 +-
target/arm/kvm64.c | 77 +++++++++++++++++++++++++++++++++++++++++
target/arm/tlb_helper.c | 2 +-
7 files changed, 89 insertions(+), 6 deletions(-)
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 141342de982..3b2250471ca 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -379,8 +379,7 @@ bool kvm_vcpu_id_is_valid(int vcpu_id);
/* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */
unsigned long kvm_arch_vcpu_id(CPUState *cpu);
-#ifdef TARGET_I386
-#define KVM_HAVE_MCE_INJECTION 1
+#ifdef KVM_HAVE_MCE_INJECTION
void kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
#endif
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 676f216b67c..5d995368d4f 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -28,6 +28,10 @@
/* ARM processors have a weak memory model */
#define TCG_GUEST_DEFAULT_MO (0)
+#ifdef TARGET_AARCH64
+#define KVM_HAVE_MCE_INJECTION 1
+#endif
+
#define EXCP_UDEF 1 /* undefined instruction */
#define EXCP_SWI 2 /* software interrupt */
#define EXCP_PREFETCH_ABORT 3
diff --git a/target/arm/internals.h b/target/arm/internals.h
index a833e3941d3..4bdbc3a8ace 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -451,13 +451,14 @@ static inline uint32_t syn_insn_abort(int same_el, int ea, int s1ptw, int fsc)
| ARM_EL_IL | (ea << 9) | (s1ptw << 7) | fsc;
}
-static inline uint32_t syn_data_abort_no_iss(int same_el,
+static inline uint32_t syn_data_abort_no_iss(int same_el, int fnv,
int ea, int cm, int s1ptw,
int wnr, int fsc)
{
return (EC_DATAABORT << ARM_EL_EC_SHIFT) | (same_el << ARM_EL_EC_SHIFT)
| ARM_EL_IL
- | (ea << 9) | (cm << 8) | (s1ptw << 7) | (wnr << 6) | fsc;
+ | (fnv << 10) | (ea << 9) | (cm << 8) | (s1ptw << 7)
+ | (wnr << 6) | fsc;
}
static inline uint32_t syn_data_abort_with_iss(int same_el,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index e818fc712ac..408392dbf6f 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -29,6 +29,8 @@
/* The x86 has a strong memory model with some store-after-load re-ordering */
#define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
+#define KVM_HAVE_MCE_INJECTION 1
+
/* Maximum instruction code size */
#define TARGET_MAX_INSN_SIZE 16
diff --git a/target/arm/helper.c b/target/arm/helper.c
index b88d27819d5..a92ae55672f 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -3465,7 +3465,7 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value,
* Report exception with ESR indicating a fault due to a
* translation table walk for a cache maintenance instruction.
*/
- syn = syn_data_abort_no_iss(current_el == target_el,
+ syn = syn_data_abort_no_iss(current_el == target_el, 0,
fi.ea, 1, fi.s1ptw, 1, fsc);
env->exception.vaddress = value;
env->exception.fsr = fsr;
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index cd8ab6b8aed..f09ed9f4df3 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -28,6 +28,9 @@
#include "sysemu/kvm_int.h"
#include "kvm_arm.h"
#include "internals.h"
+#include "hw/acpi/acpi.h"
+#include "hw/acpi/ghes.h"
+#include "hw/arm/virt.h"
static bool have_guest_debug;
@@ -883,6 +886,30 @@ int kvm_arm_cpreg_level(uint64_t regidx)
return KVM_PUT_RUNTIME_STATE;
}
+/* Callers must hold the iothread mutex lock */
+static void kvm_inject_arm_sea(CPUState *c)
+{
+ ARMCPU *cpu = ARM_CPU(c);
+ CPUARMState *env = &cpu->env;
+ CPUClass *cc = CPU_GET_CLASS(c);
+ uint32_t esr;
+ bool same_el;
+
+ c->exception_index = EXCP_DATA_ABORT;
+ env->exception.target_el = 1;
+
+ /*
+ * Set the DFSC to synchronous external abort and set FnV to not valid,
+ * this will tell guest the FAR_ELx is UNKNOWN for this abort.
+ */
+ same_el = arm_current_el(env) == env->exception.target_el;
+ esr = syn_data_abort_no_iss(same_el, 1, 0, 0, 0, 0, 0x10);
+
+ env->exception.syndrome = esr;
+
+ cc->do_interrupt(c);
+}
+
#define AARCH64_CORE_REG(x) (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(x))
@@ -1316,6 +1343,56 @@ int kvm_arch_get_registers(CPUState *cs)
return ret;
}
+void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
+{
+ ram_addr_t ram_addr;
+ hwaddr paddr;
+ Object *obj = qdev_get_machine();
+ VirtMachineState *vms = VIRT_MACHINE(obj);
+ bool acpi_enabled = virt_is_acpi_enabled(vms);
+
+ assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
+
+ if (acpi_enabled && addr &&
+ object_property_get_bool(obj, "ras", NULL)) {
+ ram_addr = qemu_ram_addr_from_host(addr);
+ if (ram_addr != RAM_ADDR_INVALID &&
+ kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) {
+ kvm_hwpoison_page_add(ram_addr);
+ /*
+ * If this is a BUS_MCEERR_AR, we know we have been called
+ * synchronously from the vCPU thread, so we can easily
+ * synchronize the state and inject an error.
+ *
+ * TODO: we currently don't tell the guest at all about
+ * BUS_MCEERR_AO. In that case we might either be being
+ * called synchronously from the vCPU thread, or a bit
+ * later from the main thread, so doing the injection of
+ * the error would be more complicated.
+ */
+ if (code == BUS_MCEERR_AR) {
+ kvm_cpu_synchronize_state(c);
+ if (!acpi_ghes_record_errors(ACPI_HEST_SRC_ID_SEA, paddr)) {
+ kvm_inject_arm_sea(c);
+ } else {
+ error_report("failed to record the error");
+ abort();
+ }
+ }
+ return;
+ }
+ if (code == BUS_MCEERR_AO) {
+ error_report("Hardware memory error at addr %p for memory used by "
+ "QEMU itself instead of guest system!", addr);
+ }
+ }
+
+ if (code == BUS_MCEERR_AR) {
+ error_report("Hardware memory error!");
+ exit(1);
+ }
+}
+
/* C6.6.29 BRK instruction */
static const uint32_t brk_insn = 0xd4200000;
diff --git a/target/arm/tlb_helper.c b/target/arm/tlb_helper.c
index e63f8bda296..7388494a554 100644
--- a/target/arm/tlb_helper.c
+++ b/target/arm/tlb_helper.c
@@ -33,7 +33,7 @@ static inline uint32_t merge_syn_data_abort(uint32_t template_syn,
* ISV field.
*/
if (!(template_syn & ARM_EL_ISV) || target_el != 2 || s1ptw) {
- syn = syn_data_abort_no_iss(same_el,
+ syn = syn_data_abort_no_iss(same_el, 0,
ea, 0, s1ptw, is_write, fsc);
} else {
/*
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 28/45] MAINTAINERS: Add ACPI/HEST/GHES entries
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (26 preceding siblings ...)
2020-05-14 14:21 ` [PULL 27/45] target-arm: kvm64: handle SIGBUS signal from kernel or KVM Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 29/45] target/arm: Convert Neon 3-reg-same VQRDMLAH/VQRDMLSH to decodetree Peter Maydell
` (17 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
From: Dongjiu Geng <gengdongjiu@huawei.com>
I and Xiang are willing to review the APEI-related patches and
volunteer as the reviewers for the HEST/GHES part.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200512030609.19593-11-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
MAINTAINERS | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 005ee98a59f..f972e12bfdd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1516,6 +1516,15 @@ F: tests/qtest/bios-tables-test.c
F: tests/qtest/acpi-utils.[hc]
F: tests/data/acpi/
+ACPI/HEST/GHES
+R: Dongjiu Geng <gengdongjiu@huawei.com>
+R: Xiang Zheng <zhengxiang9@huawei.com>
+L: qemu-arm@nongnu.org
+S: Maintained
+F: hw/acpi/ghes.c
+F: include/hw/acpi/ghes.h
+F: docs/specs/acpi_hest_ghes.rst
+
ppc4xx
M: David Gibson <david@gibson.dropbear.id.au>
L: qemu-ppc@nongnu.org
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 29/45] target/arm: Convert Neon 3-reg-same VQRDMLAH/VQRDMLSH to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (27 preceding siblings ...)
2020-05-14 14:21 ` [PULL 28/45] MAINTAINERS: Add ACPI/HEST/GHES entries Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 30/45] target/arm: Convert Neon 3-reg-same SHA " Peter Maydell
` (16 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon VQRDMLAH and VQRDMLSH insns in the 3-reg-same group
to decodetree. These don't use do_3same() because they want to
operate on VFP double registers, whose offsets are different from the
neon_reg_offset() calculations do_3same does.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-2-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 3 +++
target/arm/translate-neon.inc.c | 15 +++++++++++++++
target/arm/translate.c | 14 ++------------
3 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 593f7fff03d..82503c582ef 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -97,3 +97,6 @@ VMLS_3s 1111 001 1 0 . .. .... .... 1001 . . . 0 .... @3same
VMUL_3s 1111 001 0 0 . .. .... .... 1001 . . . 1 .... @3same
VMUL_p_3s 1111 001 1 0 . .. .... .... 1001 . . . 1 .... @3same
+
+VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same
+VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 099491b16f3..661b5fc4cf2 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -671,3 +671,18 @@ static bool trans_VMUL_p_3s(DisasContext *s, arg_3same *a)
}
return do_3same(s, a, gen_VMUL_p_3s);
}
+
+#define DO_VQRDMLAH(INSN, FUNC) \
+ static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (!dc_isar_feature(aa32_rdm, s)) { \
+ return false; \
+ } \
+ if (a->size != 1 && a->size != 2) { \
+ return false; \
+ } \
+ return do_3same(s, a, FUNC); \
+ }
+
+DO_VQRDMLAH(VQRDMLAH, gen_gvec_sqrdmlah_qc)
+DO_VQRDMLAH(VQRDMLSH, gen_gvec_sqrdmlsh_qc)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index e3d37ef2e99..1f06cb5a87f 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5450,12 +5450,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
if (!u) {
break; /* VPADD */
}
- /* VQRDMLAH */
- if (dc_isar_feature(aa32_rdm, s) && (size == 1 || size == 2)) {
- gen_gvec_sqrdmlah_qc(size, rd_ofs, rn_ofs, rm_ofs,
- vec_size, vec_size);
- return 0;
- }
+ /* VQRDMLAH : handled by decodetree */
return 1;
case NEON_3R_VFM_VQRDMLSH:
@@ -5466,12 +5461,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
break;
}
- /* VQRDMLSH */
- if (dc_isar_feature(aa32_rdm, s) && (size == 1 || size == 2)) {
- gen_gvec_sqrdmlsh_qc(size, rd_ofs, rn_ofs, rm_ofs,
- vec_size, vec_size);
- return 0;
- }
+ /* VQRDMLSH : handled by decodetree */
return 1;
case NEON_3R_VABD:
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 30/45] target/arm: Convert Neon 3-reg-same SHA to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (28 preceding siblings ...)
2020-05-14 14:21 ` [PULL 29/45] target/arm: Convert Neon 3-reg-same VQRDMLAH/VQRDMLSH to decodetree Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 31/45] target/arm: Convert Neon 64-bit element 3-reg-same insns Peter Maydell
` (15 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon SHA instructions in the 3-reg-same group
to decodetree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-3-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 10 +++
target/arm/translate-neon.inc.c | 139 ++++++++++++++++++++++++++++++++
target/arm/translate.c | 46 +----------
3 files changed, 151 insertions(+), 44 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 82503c582ef..72eae12b265 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -99,4 +99,14 @@ VMUL_3s 1111 001 0 0 . .. .... .... 1001 . . . 1 .... @3same
VMUL_p_3s 1111 001 1 0 . .. .... .... 1001 . . . 1 .... @3same
VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same
+
+SHA1_3s 1111 001 0 0 . optype:2 .... .... 1100 . 1 . 0 .... \
+ vm=%vm_dp vn=%vn_dp vd=%vd_dp
+SHA256H_3s 1111 001 1 0 . 00 .... .... 1100 . 1 . 0 .... \
+ vm=%vm_dp vn=%vn_dp vd=%vd_dp
+SHA256H2_3s 1111 001 1 0 . 01 .... .... 1100 . 1 . 0 .... \
+ vm=%vm_dp vn=%vn_dp vd=%vd_dp
+SHA256SU1_3s 1111 001 1 0 . 10 .... .... 1100 . 1 . 0 .... \
+ vm=%vm_dp vn=%vn_dp vd=%vd_dp
+
VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 661b5fc4cf2..03b3337e460 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -686,3 +686,142 @@ static bool trans_VMUL_p_3s(DisasContext *s, arg_3same *a)
DO_VQRDMLAH(VQRDMLAH, gen_gvec_sqrdmlah_qc)
DO_VQRDMLAH(VQRDMLSH, gen_gvec_sqrdmlsh_qc)
+
+static bool trans_SHA1_3s(DisasContext *s, arg_SHA1_3s *a)
+{
+ TCGv_ptr ptr1, ptr2, ptr3;
+ TCGv_i32 tmp;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON) ||
+ !dc_isar_feature(aa32_sha1, s)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if ((a->vn | a->vm | a->vd) & 1) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ ptr1 = vfp_reg_ptr(true, a->vd);
+ ptr2 = vfp_reg_ptr(true, a->vn);
+ ptr3 = vfp_reg_ptr(true, a->vm);
+ tmp = tcg_const_i32(a->optype);
+ gen_helper_crypto_sha1_3reg(ptr1, ptr2, ptr3, tmp);
+ tcg_temp_free_i32(tmp);
+ tcg_temp_free_ptr(ptr1);
+ tcg_temp_free_ptr(ptr2);
+ tcg_temp_free_ptr(ptr3);
+
+ return true;
+}
+
+static bool trans_SHA256H_3s(DisasContext *s, arg_SHA256H_3s *a)
+{
+ TCGv_ptr ptr1, ptr2, ptr3;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON) ||
+ !dc_isar_feature(aa32_sha2, s)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if ((a->vn | a->vm | a->vd) & 1) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ ptr1 = vfp_reg_ptr(true, a->vd);
+ ptr2 = vfp_reg_ptr(true, a->vn);
+ ptr3 = vfp_reg_ptr(true, a->vm);
+ gen_helper_crypto_sha256h(ptr1, ptr2, ptr3);
+ tcg_temp_free_ptr(ptr1);
+ tcg_temp_free_ptr(ptr2);
+ tcg_temp_free_ptr(ptr3);
+
+ return true;
+}
+
+static bool trans_SHA256H2_3s(DisasContext *s, arg_SHA256H2_3s *a)
+{
+ TCGv_ptr ptr1, ptr2, ptr3;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON) ||
+ !dc_isar_feature(aa32_sha2, s)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if ((a->vn | a->vm | a->vd) & 1) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ ptr1 = vfp_reg_ptr(true, a->vd);
+ ptr2 = vfp_reg_ptr(true, a->vn);
+ ptr3 = vfp_reg_ptr(true, a->vm);
+ gen_helper_crypto_sha256h2(ptr1, ptr2, ptr3);
+ tcg_temp_free_ptr(ptr1);
+ tcg_temp_free_ptr(ptr2);
+ tcg_temp_free_ptr(ptr3);
+
+ return true;
+}
+
+static bool trans_SHA256SU1_3s(DisasContext *s, arg_SHA256SU1_3s *a)
+{
+ TCGv_ptr ptr1, ptr2, ptr3;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON) ||
+ !dc_isar_feature(aa32_sha2, s)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if ((a->vn | a->vm | a->vd) & 1) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ ptr1 = vfp_reg_ptr(true, a->vd);
+ ptr2 = vfp_reg_ptr(true, a->vn);
+ ptr3 = vfp_reg_ptr(true, a->vm);
+ gen_helper_crypto_sha256su1(ptr1, ptr2, ptr3);
+ tcg_temp_free_ptr(ptr1);
+ tcg_temp_free_ptr(ptr2);
+ tcg_temp_free_ptr(ptr3);
+
+ return true;
+}
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 1f06cb5a87f..ee2b8d6f6e3 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5359,7 +5359,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
int vec_size;
uint32_t imm;
TCGv_i32 tmp, tmp2, tmp3, tmp4, tmp5;
- TCGv_ptr ptr1, ptr2, ptr3;
+ TCGv_ptr ptr1, ptr2;
TCGv_i64 tmp64;
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
@@ -5403,49 +5403,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
return 1;
}
switch (op) {
- case NEON_3R_SHA:
- /* The SHA-1/SHA-256 3-register instructions require special
- * treatment here, as their size field is overloaded as an
- * op type selector, and they all consume their input in a
- * single pass.
- */
- if (!q) {
- return 1;
- }
- if (!u) { /* SHA-1 */
- if (!dc_isar_feature(aa32_sha1, s)) {
- return 1;
- }
- ptr1 = vfp_reg_ptr(true, rd);
- ptr2 = vfp_reg_ptr(true, rn);
- ptr3 = vfp_reg_ptr(true, rm);
- tmp4 = tcg_const_i32(size);
- gen_helper_crypto_sha1_3reg(ptr1, ptr2, ptr3, tmp4);
- tcg_temp_free_i32(tmp4);
- } else { /* SHA-256 */
- if (!dc_isar_feature(aa32_sha2, s) || size == 3) {
- return 1;
- }
- ptr1 = vfp_reg_ptr(true, rd);
- ptr2 = vfp_reg_ptr(true, rn);
- ptr3 = vfp_reg_ptr(true, rm);
- switch (size) {
- case 0:
- gen_helper_crypto_sha256h(ptr1, ptr2, ptr3);
- break;
- case 1:
- gen_helper_crypto_sha256h2(ptr1, ptr2, ptr3);
- break;
- case 2:
- gen_helper_crypto_sha256su1(ptr1, ptr2, ptr3);
- break;
- }
- }
- tcg_temp_free_ptr(ptr1);
- tcg_temp_free_ptr(ptr2);
- tcg_temp_free_ptr(ptr3);
- return 0;
-
case NEON_3R_VPADD_VQRDMLAH:
if (!u) {
break; /* VPADD */
@@ -5496,6 +5453,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VMUL:
case NEON_3R_VML:
case NEON_3R_VSHL:
+ case NEON_3R_SHA:
/* Already handled by decodetree */
return 1;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 31/45] target/arm: Convert Neon 64-bit element 3-reg-same insns
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (29 preceding siblings ...)
2020-05-14 14:21 ` [PULL 30/45] target/arm: Convert Neon 3-reg-same SHA " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 32/45] target/arm: Convert Neon VHADD " Peter Maydell
` (14 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the 64-bit element insns in the 3-reg-same group
to decodetree. This covers VQSHL, VRSHL and VQRSHL where
size==0b11.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-4-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 13 +++++++++++
target/arm/translate-neon.inc.c | 24 +++++++++++++++++++++
target/arm/translate.c | 38 ++-------------------------------
3 files changed, 39 insertions(+), 36 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 72eae12b265..fa52b998e87 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -81,6 +81,19 @@ VCGE_U_3s 1111 001 1 0 . .. .... .... 0011 . . . 1 .... @3same
VSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 0 .... @3same_rev
VSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same_rev
+# Insns operating on 64-bit elements (size!=0b11 handled elsewhere)
+# The _rev suffix indicates that Vn and Vm are reversed (as explained
+# by the comment for the @3same_rev format).
+@3same_64_rev .... ... . . . 11 .... .... .... . q:1 . . .... \
+ &3same vm=%vn_dp vn=%vm_dp vd=%vd_dp size=3
+
+VQSHL_S64_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
+VQSHL_U64_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
+VRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
+VRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
+VQRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
+VQRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
+
VMAX_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 0 .... @3same
VMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same
VMIN_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 1 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 03b3337e460..05c6dcdc9b9 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -825,3 +825,27 @@ static bool trans_SHA256SU1_3s(DisasContext *s, arg_SHA256SU1_3s *a)
return true;
}
+
+#define DO_3SAME_64(INSN, FUNC) \
+ static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
+ uint32_t rn_ofs, uint32_t rm_ofs, \
+ uint32_t oprsz, uint32_t maxsz) \
+ { \
+ static const GVecGen3 op = { .fni8 = FUNC }; \
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &op); \
+ } \
+ DO_3SAME(INSN, gen_##INSN##_3s)
+
+#define DO_3SAME_64_ENV(INSN, FUNC) \
+ static void gen_##INSN##_elt(TCGv_i64 d, TCGv_i64 n, TCGv_i64 m) \
+ { \
+ FUNC(d, cpu_env, n, m); \
+ } \
+ DO_3SAME_64(INSN, gen_##INSN##_elt)
+
+DO_3SAME_64(VRSHL_S64, gen_helper_neon_rshl_s64)
+DO_3SAME_64(VRSHL_U64, gen_helper_neon_rshl_u64)
+DO_3SAME_64_ENV(VQSHL_S64, gen_helper_neon_qshl_s64)
+DO_3SAME_64_ENV(VQSHL_U64, gen_helper_neon_qshl_u64)
+DO_3SAME_64_ENV(VQRSHL_S64, gen_helper_neon_qrshl_s64)
+DO_3SAME_64_ENV(VQRSHL_U64, gen_helper_neon_qrshl_u64)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index ee2b8d6f6e3..1ce3e182867 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5459,42 +5459,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
if (size == 3) {
- /* 64-bit element instructions. */
- for (pass = 0; pass < (q ? 2 : 1); pass++) {
- neon_load_reg64(cpu_V0, rn + pass);
- neon_load_reg64(cpu_V1, rm + pass);
- switch (op) {
- case NEON_3R_VQSHL:
- if (u) {
- gen_helper_neon_qshl_u64(cpu_V0, cpu_env,
- cpu_V1, cpu_V0);
- } else {
- gen_helper_neon_qshl_s64(cpu_V0, cpu_env,
- cpu_V1, cpu_V0);
- }
- break;
- case NEON_3R_VRSHL:
- if (u) {
- gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0);
- } else {
- gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0);
- }
- break;
- case NEON_3R_VQRSHL:
- if (u) {
- gen_helper_neon_qrshl_u64(cpu_V0, cpu_env,
- cpu_V1, cpu_V0);
- } else {
- gen_helper_neon_qrshl_s64(cpu_V0, cpu_env,
- cpu_V1, cpu_V0);
- }
- break;
- default:
- abort();
- }
- neon_store_reg64(cpu_V0, rd + pass);
- }
- return 0;
+ /* 64-bit element instructions: handled by decodetree */
+ return 1;
}
pairwise = 0;
switch (op) {
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 32/45] target/arm: Convert Neon VHADD 3-reg-same insns
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (30 preceding siblings ...)
2020-05-14 14:21 ` [PULL 31/45] target/arm: Convert Neon 64-bit element 3-reg-same insns Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 33/45] target/arm: Convert Neon VABA/VABD 3-reg-same to decodetree Peter Maydell
` (13 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon VHADD insns in the 3-reg-same group to decodetree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-5-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 2 ++
target/arm/translate-neon.inc.c | 24 ++++++++++++++++++++++++
target/arm/translate.c | 4 +---
3 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index fa52b998e87..8120d8d5f2d 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -42,6 +42,8 @@
@3same .... ... . . . size:2 .... .... .... . q:1 . . .... \
&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp
+VHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same
+VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same
VQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same
VQADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 1 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 05c6dcdc9b9..0418a84a7de 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -849,3 +849,27 @@ DO_3SAME_64_ENV(VQSHL_S64, gen_helper_neon_qshl_s64)
DO_3SAME_64_ENV(VQSHL_U64, gen_helper_neon_qshl_u64)
DO_3SAME_64_ENV(VQRSHL_S64, gen_helper_neon_qrshl_s64)
DO_3SAME_64_ENV(VQRSHL_U64, gen_helper_neon_qrshl_u64)
+
+#define DO_3SAME_32(INSN, FUNC) \
+ static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
+ uint32_t rn_ofs, uint32_t rm_ofs, \
+ uint32_t oprsz, uint32_t maxsz) \
+ { \
+ static const GVecGen3 ops[4] = { \
+ { .fni4 = gen_helper_neon_##FUNC##8 }, \
+ { .fni4 = gen_helper_neon_##FUNC##16 }, \
+ { .fni4 = gen_helper_neon_##FUNC##32 }, \
+ { 0 }, \
+ }; \
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops[vece]); \
+ } \
+ static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (a->size > 2) { \
+ return false; \
+ } \
+ return do_3same(s, a, gen_##INSN##_3s); \
+ }
+
+DO_3SAME_32(VHADD_S, hadd_s)
+DO_3SAME_32(VHADD_U, hadd_u)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 1ce3e182867..8d856ccfe96 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5454,6 +5454,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VML:
case NEON_3R_VSHL:
case NEON_3R_SHA:
+ case NEON_3R_VHADD:
/* Already handled by decodetree */
return 1;
}
@@ -5534,9 +5535,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp2 = neon_load_reg(rm, pass);
}
switch (op) {
- case NEON_3R_VHADD:
- GEN_NEON_INTEGER_OP(hadd);
- break;
case NEON_3R_VRHADD:
GEN_NEON_INTEGER_OP(rhadd);
break;
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 33/45] target/arm: Convert Neon VABA/VABD 3-reg-same to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (31 preceding siblings ...)
2020-05-14 14:21 ` [PULL 32/45] target/arm: Convert Neon VHADD " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 34/45] target/arm: Convert Neon VRHADD, VHSUB 3-reg-same insns " Peter Maydell
` (12 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon VABA and VABD insns in the 3-reg-same group to
decodetree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-6-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 6 ++++++
target/arm/translate-neon.inc.c | 4 ++++
target/arm/translate.c | 22 ++--------------------
3 files changed, 12 insertions(+), 20 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 8120d8d5f2d..00a909a8884 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -101,6 +101,12 @@ VMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same
VMIN_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 1 .... @3same
VMIN_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 1 .... @3same
+VABD_S_3s 1111 001 0 0 . .. .... .... 0111 . . . 0 .... @3same
+VABD_U_3s 1111 001 1 0 . .. .... .... 0111 . . . 0 .... @3same
+
+VABA_S_3s 1111 001 0 0 . .. .... .... 0111 . . . 1 .... @3same
+VABA_U_3s 1111 001 1 0 . .. .... .... 0111 . . . 1 .... @3same
+
VADD_3s 1111 001 0 0 . .. .... .... 1000 . . . 0 .... @3same
VSUB_3s 1111 001 1 0 . .. .... .... 1000 . . . 0 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 0418a84a7de..20f0f2c8d83 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -641,6 +641,10 @@ DO_3SAME_NO_SZ_3(VMUL, tcg_gen_gvec_mul)
DO_3SAME_NO_SZ_3(VMLA, gen_gvec_mla)
DO_3SAME_NO_SZ_3(VMLS, gen_gvec_mls)
DO_3SAME_NO_SZ_3(VTST, gen_gvec_cmtst)
+DO_3SAME_NO_SZ_3(VABD_S, gen_gvec_sabd)
+DO_3SAME_NO_SZ_3(VABA_S, gen_gvec_saba)
+DO_3SAME_NO_SZ_3(VABD_U, gen_gvec_uabd)
+DO_3SAME_NO_SZ_3(VABA_U, gen_gvec_uaba)
#define DO_3SAME_CMP(INSN, COND) \
static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 8d856ccfe96..2c842df4451 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5421,26 +5421,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
/* VQRDMLSH : handled by decodetree */
return 1;
- case NEON_3R_VABD:
- if (u) {
- gen_gvec_uabd(size, rd_ofs, rn_ofs, rm_ofs,
- vec_size, vec_size);
- } else {
- gen_gvec_sabd(size, rd_ofs, rn_ofs, rm_ofs,
- vec_size, vec_size);
- }
- return 0;
-
- case NEON_3R_VABA:
- if (u) {
- gen_gvec_uaba(size, rd_ofs, rn_ofs, rm_ofs,
- vec_size, vec_size);
- } else {
- gen_gvec_saba(size, rd_ofs, rn_ofs, rm_ofs,
- vec_size, vec_size);
- }
- return 0;
-
case NEON_3R_VADD_VSUB:
case NEON_3R_LOGIC:
case NEON_3R_VMAX:
@@ -5455,6 +5435,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VSHL:
case NEON_3R_SHA:
case NEON_3R_VHADD:
+ case NEON_3R_VABD:
+ case NEON_3R_VABA:
/* Already handled by decodetree */
return 1;
}
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 34/45] target/arm: Convert Neon VRHADD, VHSUB 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (32 preceding siblings ...)
2020-05-14 14:21 ` [PULL 33/45] target/arm: Convert Neon VABA/VABD 3-reg-same to decodetree Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 35/45] target/arm: Convert Neon VQSHL, VRSHL, VQRSHL " Peter Maydell
` (11 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon VRHADD and VHSUB 3-reg-same insns to decodetree.
(These are all the other insns in 3-reg-same which were using
GEN_NEON_INTEGER_OP() and which are not pairwise or
reversed-operands.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-7-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 6 ++++++
target/arm/translate-neon.inc.c | 4 ++++
target/arm/translate.c | 8 ++------
3 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 00a909a8884..4984a5d4e19 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -47,6 +47,9 @@ VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same
VQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same
VQADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 1 .... @3same
+VRHADD_S_3s 1111 001 0 0 . .. .... .... 0001 . . . 0 .... @3same
+VRHADD_U_3s 1111 001 1 0 . .. .... .... 0001 . . . 0 .... @3same
+
@3same_logic .... ... . . . .. .... .... .... . q:1 .. .... \
&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp size=0
@@ -59,6 +62,9 @@ VBSL_3s 1111 001 1 0 . 01 .... .... 0001 ... 1 .... @3same_logic
VBIT_3s 1111 001 1 0 . 10 .... .... 0001 ... 1 .... @3same_logic
VBIF_3s 1111 001 1 0 . 11 .... .... 0001 ... 1 .... @3same_logic
+VHSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 0 .... @3same
+VHSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 0 .... @3same
+
VQSUB_S_3s 1111 001 0 0 . .. .... .... 0010 . . . 1 .... @3same
VQSUB_U_3s 1111 001 1 0 . .. .... .... 0010 . . . 1 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 20f0f2c8d83..e9da47171c6 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -877,3 +877,7 @@ DO_3SAME_64_ENV(VQRSHL_U64, gen_helper_neon_qrshl_u64)
DO_3SAME_32(VHADD_S, hadd_s)
DO_3SAME_32(VHADD_U, hadd_u)
+DO_3SAME_32(VHSUB_S, hsub_s)
+DO_3SAME_32(VHSUB_U, hsub_u)
+DO_3SAME_32(VRHADD_S, rhadd_s)
+DO_3SAME_32(VRHADD_U, rhadd_u)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 2c842df4451..ebb899d846e 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5435,6 +5435,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VSHL:
case NEON_3R_SHA:
case NEON_3R_VHADD:
+ case NEON_3R_VRHADD:
+ case NEON_3R_VHSUB:
case NEON_3R_VABD:
case NEON_3R_VABA:
/* Already handled by decodetree */
@@ -5517,12 +5519,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp2 = neon_load_reg(rm, pass);
}
switch (op) {
- case NEON_3R_VRHADD:
- GEN_NEON_INTEGER_OP(rhadd);
- break;
- case NEON_3R_VHSUB:
- GEN_NEON_INTEGER_OP(hsub);
- break;
case NEON_3R_VQSHL:
GEN_NEON_INTEGER_OP_ENV(qshl);
break;
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 35/45] target/arm: Convert Neon VQSHL, VRSHL, VQRSHL 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (33 preceding siblings ...)
2020-05-14 14:21 ` [PULL 34/45] target/arm: Convert Neon VRHADD, VHSUB 3-reg-same insns " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 36/45] target/arm: Convert Neon VPMAX/VPMIN " Peter Maydell
` (10 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the VQSHL, VRSHL and VQRSHL insns in the 3-reg-same
group to decodetree. We have already implemented the size==0b11
case of these insns; this commit handles the remaining sizes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-8-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 30 ++++++++++++++++++-----
target/arm/translate-neon.inc.c | 43 +++++++++++++++++++++++++++++++++
target/arm/translate.c | 22 +++--------------
3 files changed, 70 insertions(+), 25 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 4984a5d4e19..34bce81c434 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -95,12 +95,30 @@ VSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 0 .... @3same_rev
@3same_64_rev .... ... . . . 11 .... .... .... . q:1 . . .... \
&3same vm=%vn_dp vn=%vm_dp vd=%vd_dp size=3
-VQSHL_S64_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
-VQSHL_U64_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
-VRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
-VRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
-VQRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
-VQRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
+{
+ VQSHL_S64_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
+ VQSHL_S_3s 1111 001 0 0 . .. .... .... 0100 . . . 1 .... @3same_rev
+}
+{
+ VQSHL_U64_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_64_rev
+ VQSHL_U_3s 1111 001 1 0 . .. .... .... 0100 . . . 1 .... @3same_rev
+}
+{
+ VRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
+ VRSHL_S_3s 1111 001 0 0 . .. .... .... 0101 . . . 0 .... @3same_rev
+}
+{
+ VRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_64_rev
+ VRSHL_U_3s 1111 001 1 0 . .. .... .... 0101 . . . 0 .... @3same_rev
+}
+{
+ VQRSHL_S64_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
+ VQRSHL_S_3s 1111 001 0 0 . .. .... .... 0101 . . . 1 .... @3same_rev
+}
+{
+ VQRSHL_U64_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_64_rev
+ VQRSHL_U_3s 1111 001 1 0 . .. .... .... 0101 . . . 1 .... @3same_rev
+}
VMAX_S_3s 1111 001 0 0 . .. .... .... 0110 . . . 0 .... @3same
VMAX_U_3s 1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index e9da47171c6..7097c18f334 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -875,9 +875,52 @@ DO_3SAME_64_ENV(VQRSHL_U64, gen_helper_neon_qrshl_u64)
return do_3same(s, a, gen_##INSN##_3s); \
}
+/*
+ * Some helper functions need to be passed the cpu_env. In order
+ * to use those with the gvec APIs like tcg_gen_gvec_3() we need
+ * to create wrapper functions whose prototype is a NeonGenTwoOpFn()
+ * and which call a NeonGenTwoOpEnvFn().
+ */
+#define WRAP_ENV_FN(WRAPNAME, FUNC) \
+ static void WRAPNAME(TCGv_i32 d, TCGv_i32 n, TCGv_i32 m) \
+ { \
+ FUNC(d, cpu_env, n, m); \
+ }
+
+#define DO_3SAME_32_ENV(INSN, FUNC) \
+ WRAP_ENV_FN(gen_##INSN##_tramp8, gen_helper_neon_##FUNC##8); \
+ WRAP_ENV_FN(gen_##INSN##_tramp16, gen_helper_neon_##FUNC##16); \
+ WRAP_ENV_FN(gen_##INSN##_tramp32, gen_helper_neon_##FUNC##32); \
+ static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
+ uint32_t rn_ofs, uint32_t rm_ofs, \
+ uint32_t oprsz, uint32_t maxsz) \
+ { \
+ static const GVecGen3 ops[4] = { \
+ { .fni4 = gen_##INSN##_tramp8 }, \
+ { .fni4 = gen_##INSN##_tramp16 }, \
+ { .fni4 = gen_##INSN##_tramp32 }, \
+ { 0 }, \
+ }; \
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops[vece]); \
+ } \
+ static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (a->size > 2) { \
+ return false; \
+ } \
+ return do_3same(s, a, gen_##INSN##_3s); \
+ }
+
DO_3SAME_32(VHADD_S, hadd_s)
DO_3SAME_32(VHADD_U, hadd_u)
DO_3SAME_32(VHSUB_S, hsub_s)
DO_3SAME_32(VHSUB_U, hsub_u)
DO_3SAME_32(VRHADD_S, rhadd_s)
DO_3SAME_32(VRHADD_U, rhadd_u)
+DO_3SAME_32(VRSHL_S, rshl_s)
+DO_3SAME_32(VRSHL_U, rshl_u)
+
+DO_3SAME_32_ENV(VQSHL_S, qshl_s)
+DO_3SAME_32_ENV(VQSHL_U, qshl_u)
+DO_3SAME_32_ENV(VQRSHL_S, qrshl_s)
+DO_3SAME_32_ENV(VQRSHL_U, qrshl_u)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index ebb899d846e..3aabb18720b 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5439,6 +5439,9 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VHSUB:
case NEON_3R_VABD:
case NEON_3R_VABA:
+ case NEON_3R_VQSHL:
+ case NEON_3R_VRSHL:
+ case NEON_3R_VQRSHL:
/* Already handled by decodetree */
return 1;
}
@@ -5449,17 +5452,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
pairwise = 0;
switch (op) {
- case NEON_3R_VQSHL:
- case NEON_3R_VRSHL:
- case NEON_3R_VQRSHL:
- {
- int rtmp;
- /* Shift instruction operands are reversed. */
- rtmp = rn;
- rn = rm;
- rm = rtmp;
- }
- break;
case NEON_3R_VPADD_VQRDMLAH:
case NEON_3R_VPMAX:
case NEON_3R_VPMIN:
@@ -5519,14 +5511,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp2 = neon_load_reg(rm, pass);
}
switch (op) {
- case NEON_3R_VQSHL:
- GEN_NEON_INTEGER_OP_ENV(qshl);
- break;
- case NEON_3R_VRSHL:
- GEN_NEON_INTEGER_OP(rshl);
- break;
- case NEON_3R_VQRSHL:
- GEN_NEON_INTEGER_OP_ENV(qrshl);
break;
case NEON_3R_VPMAX:
GEN_NEON_INTEGER_OP(pmax);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 36/45] target/arm: Convert Neon VPMAX/VPMIN 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (34 preceding siblings ...)
2020-05-14 14:21 ` [PULL 35/45] target/arm: Convert Neon VQSHL, VRSHL, VQRSHL " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 37/45] target/arm: Convert Neon VPADD " Peter Maydell
` (9 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon integer VPMAX and VPMIN 3-reg-same insns to
decodetree. These are 'pairwise' operations.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-9-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 9 +++++
target/arm/translate-neon.inc.c | 71 +++++++++++++++++++++++++++++++++
target/arm/translate.c | 17 +-------
3 files changed, 82 insertions(+), 15 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 34bce81c434..2edcaba9f85 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -42,6 +42,9 @@
@3same .... ... . . . size:2 .... .... .... . q:1 . . .... \
&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp
+@3same_q0 .... ... . . . size:2 .... .... .... . 0 . . .... \
+ &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0
+
VHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same
VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same
VQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same
@@ -143,6 +146,12 @@ VMLS_3s 1111 001 1 0 . .. .... .... 1001 . . . 0 .... @3same
VMUL_3s 1111 001 0 0 . .. .... .... 1001 . . . 1 .... @3same
VMUL_p_3s 1111 001 1 0 . .. .... .... 1001 . . . 1 .... @3same
+VPMAX_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 0 .... @3same_q0
+VPMAX_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 0 .... @3same_q0
+
+VPMIN_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 1 .... @3same_q0
+VPMIN_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 1 .... @3same_q0
+
VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same
SHA1_3s 1111 001 0 0 . optype:2 .... .... 1100 . 1 . 0 .... \
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 7097c18f334..7db6b856598 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -924,3 +924,74 @@ DO_3SAME_32_ENV(VQSHL_S, qshl_s)
DO_3SAME_32_ENV(VQSHL_U, qshl_u)
DO_3SAME_32_ENV(VQRSHL_S, qrshl_s)
DO_3SAME_32_ENV(VQRSHL_U, qrshl_u)
+
+static bool do_3same_pair(DisasContext *s, arg_3same *a, NeonGenTwoOpFn *fn)
+{
+ /* Operations handled pairwise 32 bits at a time */
+ TCGv_i32 tmp, tmp2, tmp3;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if (a->size == 3) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ assert(a->q == 0); /* enforced by decode patterns */
+
+ /*
+ * Note that we have to be careful not to clobber the source operands
+ * in the "vm == vd" case by storing the result of the first pass too
+ * early. Since Q is 0 there are always just two passes, so instead
+ * of a complicated loop over each pass we just unroll.
+ */
+ tmp = neon_load_reg(a->vn, 0);
+ tmp2 = neon_load_reg(a->vn, 1);
+ fn(tmp, tmp, tmp2);
+ tcg_temp_free_i32(tmp2);
+
+ tmp3 = neon_load_reg(a->vm, 0);
+ tmp2 = neon_load_reg(a->vm, 1);
+ fn(tmp3, tmp3, tmp2);
+ tcg_temp_free_i32(tmp2);
+
+ neon_store_reg(a->vd, 0, tmp);
+ neon_store_reg(a->vd, 1, tmp3);
+ return true;
+}
+
+#define DO_3SAME_PAIR(INSN, func) \
+ static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
+ { \
+ static NeonGenTwoOpFn * const fns[] = { \
+ gen_helper_neon_##func##8, \
+ gen_helper_neon_##func##16, \
+ gen_helper_neon_##func##32, \
+ }; \
+ if (a->size > 2) { \
+ return false; \
+ } \
+ return do_3same_pair(s, a, fns[a->size]); \
+ }
+
+/* 32-bit pairwise ops end up the same as the elementwise versions. */
+#define gen_helper_neon_pmax_s32 tcg_gen_smax_i32
+#define gen_helper_neon_pmax_u32 tcg_gen_umax_i32
+#define gen_helper_neon_pmin_s32 tcg_gen_smin_i32
+#define gen_helper_neon_pmin_u32 tcg_gen_umin_i32
+
+DO_3SAME_PAIR(VPMAX_S, pmax_s)
+DO_3SAME_PAIR(VPMIN_S, pmin_s)
+DO_3SAME_PAIR(VPMAX_U, pmax_u)
+DO_3SAME_PAIR(VPMIN_U, pmin_u)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 3aabb18720b..82be4d40282 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -3011,12 +3011,6 @@ static inline void gen_neon_rsb(int size, TCGv_i32 t0, TCGv_i32 t1)
}
}
-/* 32-bit pairwise ops end up the same as the elementwise versions. */
-#define gen_helper_neon_pmax_s32 tcg_gen_smax_i32
-#define gen_helper_neon_pmax_u32 tcg_gen_umax_i32
-#define gen_helper_neon_pmin_s32 tcg_gen_smin_i32
-#define gen_helper_neon_pmin_u32 tcg_gen_umin_i32
-
#define GEN_NEON_INTEGER_OP_ENV(name) do { \
switch ((size << 1) | u) { \
case 0: \
@@ -5442,6 +5436,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VQSHL:
case NEON_3R_VRSHL:
case NEON_3R_VQRSHL:
+ case NEON_3R_VPMAX:
+ case NEON_3R_VPMIN:
/* Already handled by decodetree */
return 1;
}
@@ -5453,8 +5449,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
pairwise = 0;
switch (op) {
case NEON_3R_VPADD_VQRDMLAH:
- case NEON_3R_VPMAX:
- case NEON_3R_VPMIN:
pairwise = 1;
break;
case NEON_3R_FLOAT_ARITH:
@@ -5511,13 +5505,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp2 = neon_load_reg(rm, pass);
}
switch (op) {
- break;
- case NEON_3R_VPMAX:
- GEN_NEON_INTEGER_OP(pmax);
- break;
- case NEON_3R_VPMIN:
- GEN_NEON_INTEGER_OP(pmin);
- break;
case NEON_3R_VQDMULH_VQRDMULH: /* Multiply high. */
if (!u) { /* VQDMULH */
switch (size) {
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 37/45] target/arm: Convert Neon VPADD 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (35 preceding siblings ...)
2020-05-14 14:21 ` [PULL 36/45] target/arm: Convert Neon VPMAX/VPMIN " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 38/45] target/arm: Convert Neon VQDMULH/VQRDMULH 3-reg-same " Peter Maydell
` (8 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon integer VPADD 3-reg-same insns to decodetree. These
are 'pairwise' operations. (Note that VQRDMLAH, which shares the
same primary opcode but has U=1, has already been converted.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-10-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 2 ++
target/arm/translate-neon.inc.c | 2 ++
target/arm/translate.c | 19 +------------------
3 files changed, 5 insertions(+), 18 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 2edcaba9f85..3659fb036c7 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -152,6 +152,8 @@ VPMAX_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 0 .... @3same_q0
VPMIN_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 1 .... @3same_q0
VPMIN_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 1 .... @3same_q0
+VPADD_3s 1111 001 0 0 . .. .... .... 1011 . . . 1 .... @3same_q0
+
VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same
SHA1_3s 1111 001 0 0 . optype:2 .... .... 1100 . 1 . 0 .... \
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 7db6b856598..e0137364075 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -990,8 +990,10 @@ static bool do_3same_pair(DisasContext *s, arg_3same *a, NeonGenTwoOpFn *fn)
#define gen_helper_neon_pmax_u32 tcg_gen_umax_i32
#define gen_helper_neon_pmin_s32 tcg_gen_smin_i32
#define gen_helper_neon_pmin_u32 tcg_gen_umin_i32
+#define gen_helper_neon_padd_u32 tcg_gen_add_i32
DO_3SAME_PAIR(VPMAX_S, pmax_s)
DO_3SAME_PAIR(VPMIN_S, pmin_s)
DO_3SAME_PAIR(VPMAX_U, pmax_u)
DO_3SAME_PAIR(VPMIN_U, pmin_u)
+DO_3SAME_PAIR(VPADD, padd_u)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 82be4d40282..ce30417014d 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5397,13 +5397,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
return 1;
}
switch (op) {
- case NEON_3R_VPADD_VQRDMLAH:
- if (!u) {
- break; /* VPADD */
- }
- /* VQRDMLAH : handled by decodetree */
- return 1;
-
case NEON_3R_VFM_VQRDMLSH:
if (!u) {
/* VFM, VFMS */
@@ -5438,6 +5431,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VQRSHL:
case NEON_3R_VPMAX:
case NEON_3R_VPMIN:
+ case NEON_3R_VPADD_VQRDMLAH:
/* Already handled by decodetree */
return 1;
}
@@ -5448,9 +5442,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
pairwise = 0;
switch (op) {
- case NEON_3R_VPADD_VQRDMLAH:
- pairwise = 1;
- break;
case NEON_3R_FLOAT_ARITH:
pairwise = (u && size < 2); /* if VPADD (float) */
break;
@@ -5528,14 +5519,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
}
break;
- case NEON_3R_VPADD_VQRDMLAH:
- switch (size) {
- case 0: gen_helper_neon_padd_u8(tmp, tmp, tmp2); break;
- case 1: gen_helper_neon_padd_u16(tmp, tmp, tmp2); break;
- case 2: tcg_gen_add_i32(tmp, tmp, tmp2); break;
- default: abort();
- }
- break;
case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 38/45] target/arm: Convert Neon VQDMULH/VQRDMULH 3-reg-same to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (36 preceding siblings ...)
2020-05-14 14:21 ` [PULL 37/45] target/arm: Convert Neon VPADD " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 39/45] target/arm: Convert Neon VADD, VSUB, VABD 3-reg-same insns " Peter Maydell
` (7 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon VQDMULH and VQRDMULH 3-reg-same insns to
decodetree. These are the last integer operations in the
3-reg-same group.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-11-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 3 +++
target/arm/translate-neon.inc.c | 24 ++++++++++++++++++++++++
target/arm/translate.c | 24 +-----------------------
3 files changed, 28 insertions(+), 23 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 3659fb036c7..fd32837fb17 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -152,6 +152,9 @@ VPMAX_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 0 .... @3same_q0
VPMIN_S_3s 1111 001 0 0 . .. .... .... 1010 . . . 1 .... @3same_q0
VPMIN_U_3s 1111 001 1 0 . .. .... .... 1010 . . . 1 .... @3same_q0
+VQDMULH_3s 1111 001 0 0 . .. .... .... 1011 . . . 0 .... @3same
+VQRDMULH_3s 1111 001 1 0 . .. .... .... 1011 . . . 0 .... @3same
+
VPADD_3s 1111 001 0 0 . .. .... .... 1011 . . . 1 .... @3same_q0
VQRDMLAH_3s 1111 001 1 0 . .. .... .... 1011 ... 1 .... @3same
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index e0137364075..f52302f42b1 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -997,3 +997,27 @@ DO_3SAME_PAIR(VPMIN_S, pmin_s)
DO_3SAME_PAIR(VPMAX_U, pmax_u)
DO_3SAME_PAIR(VPMIN_U, pmin_u)
DO_3SAME_PAIR(VPADD, padd_u)
+
+#define DO_3SAME_VQDMULH(INSN, FUNC) \
+ WRAP_ENV_FN(gen_##INSN##_tramp16, gen_helper_neon_##FUNC##_s16); \
+ WRAP_ENV_FN(gen_##INSN##_tramp32, gen_helper_neon_##FUNC##_s32); \
+ static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
+ uint32_t rn_ofs, uint32_t rm_ofs, \
+ uint32_t oprsz, uint32_t maxsz) \
+ { \
+ static const GVecGen3 ops[2] = { \
+ { .fni4 = gen_##INSN##_tramp16 }, \
+ { .fni4 = gen_##INSN##_tramp32 }, \
+ }; \
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops[vece - 1]); \
+ } \
+ static bool trans_##INSN##_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (a->size != 1 && a->size != 2) { \
+ return false; \
+ } \
+ return do_3same(s, a, gen_##INSN##_3s); \
+ }
+
+DO_3SAME_VQDMULH(VQDMULH, qdmulh)
+DO_3SAME_VQDMULH(VQRDMULH, qrdmulh)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index ce30417014d..561cb67286d 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5432,6 +5432,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VPMAX:
case NEON_3R_VPMIN:
case NEON_3R_VPADD_VQRDMLAH:
+ case NEON_3R_VQDMULH_VQRDMULH:
/* Already handled by decodetree */
return 1;
}
@@ -5496,29 +5497,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp2 = neon_load_reg(rm, pass);
}
switch (op) {
- case NEON_3R_VQDMULH_VQRDMULH: /* Multiply high. */
- if (!u) { /* VQDMULH */
- switch (size) {
- case 1:
- gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2);
- break;
- case 2:
- gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2);
- break;
- default: abort();
- }
- } else { /* VQRDMULH */
- switch (size) {
- case 1:
- gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2);
- break;
- case 2:
- gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2);
- break;
- default: abort();
- }
- }
- break;
case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 39/45] target/arm: Convert Neon VADD, VSUB, VABD 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (37 preceding siblings ...)
2020-05-14 14:21 ` [PULL 38/45] target/arm: Convert Neon VQDMULH/VQRDMULH 3-reg-same " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 40/45] target/arm: Convert Neon VPMIN/VPMAX/VPADD float " Peter Maydell
` (6 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon VADD, VSUB, VABD 3-reg-same insns to decodetree.
We already have gvec helpers for addition and subtraction, but must
add one for fabd.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-12-peter.maydell@linaro.org
---
target/arm/helper.h | 3 ++-
target/arm/neon-dp.decode | 8 ++++++++
target/arm/neon_helper.c | 7 -------
target/arm/translate-neon.inc.c | 28 ++++++++++++++++++++++++++++
target/arm/translate.c | 10 +++-------
target/arm/vec_helper.c | 7 +++++++
6 files changed, 48 insertions(+), 15 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 1857f4ee46a..6e9629c87b0 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -396,7 +396,6 @@ DEF_HELPER_FLAGS_2(neon_qneg_s16, TCG_CALL_NO_RWG, i32, env, i32)
DEF_HELPER_FLAGS_2(neon_qneg_s32, TCG_CALL_NO_RWG, i32, env, i32)
DEF_HELPER_FLAGS_2(neon_qneg_s64, TCG_CALL_NO_RWG, i64, env, i64)
-DEF_HELPER_3(neon_abd_f32, i32, i32, i32, ptr)
DEF_HELPER_3(neon_ceq_f32, i32, i32, i32, ptr)
DEF_HELPER_3(neon_cge_f32, i32, i32, i32, ptr)
DEF_HELPER_3(neon_cgt_f32, i32, i32, i32, ptr)
@@ -595,6 +594,8 @@ DEF_HELPER_FLAGS_5(gvec_fmul_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_fmul_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_fmul_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_5(gvec_fabd_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
+
DEF_HELPER_FLAGS_5(gvec_ftsmul_h, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(gvec_ftsmul_s, TCG_CALL_NO_RWG,
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index fd32837fb17..0dd02f3b720 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -45,6 +45,10 @@
@3same_q0 .... ... . . . size:2 .... .... .... . 0 . . .... \
&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0
+# For FP insns the high bit of 'size' is used as part of opcode decode
+@3same_fp .... ... . . . . size:1 .... .... .... . q:1 . . .... \
+ &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp
+
VHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same
VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same
VQADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 1 .... @3same
@@ -169,3 +173,7 @@ SHA256SU1_3s 1111 001 1 0 . 10 .... .... 1100 . 1 . 0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same
+
+VADD_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 0 .... @3same_fp
+VSUB_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
+VABD_fp_3s 1111 001 1 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c
index 2ef75e04c83..b637265691a 100644
--- a/target/arm/neon_helper.c
+++ b/target/arm/neon_helper.c
@@ -1825,13 +1825,6 @@ uint64_t HELPER(neon_qneg_s64)(CPUARMState *env, uint64_t x)
}
/* NEON Float helpers. */
-uint32_t HELPER(neon_abd_f32)(uint32_t a, uint32_t b, void *fpstp)
-{
- float_status *fpst = fpstp;
- float32 f0 = make_float32(a);
- float32 f1 = make_float32(b);
- return float32_val(float32_abs(float32_sub(f0, f1, fpst)));
-}
/* Floating point comparisons produce an integer result.
* Note that EQ doesn't signal InvalidOp for QNaNs but GE and GT do.
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index f52302f42b1..540720f5e0d 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1021,3 +1021,31 @@ DO_3SAME_PAIR(VPADD, padd_u)
DO_3SAME_VQDMULH(VQDMULH, qdmulh)
DO_3SAME_VQDMULH(VQRDMULH, qrdmulh)
+
+/*
+ * For all the functions using this macro, size == 1 means fp16,
+ * which is an architecture extension we don't implement yet.
+ */
+#define DO_3S_FP_GVEC(INSN,FUNC) \
+ static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs, \
+ uint32_t rn_ofs, uint32_t rm_ofs, \
+ uint32_t oprsz, uint32_t maxsz) \
+ { \
+ TCGv_ptr fpst = get_fpstatus_ptr(1); \
+ tcg_gen_gvec_3_ptr(rd_ofs, rn_ofs, rm_ofs, fpst, \
+ oprsz, maxsz, 0, FUNC); \
+ tcg_temp_free_ptr(fpst); \
+ } \
+ static bool trans_##INSN##_fp_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (a->size != 0) { \
+ /* TODO fp16 support */ \
+ return false; \
+ } \
+ return do_3same(s, a, gen_##INSN##_3s); \
+ }
+
+
+DO_3S_FP_GVEC(VADD, gen_helper_gvec_fadd_s)
+DO_3S_FP_GVEC(VSUB, gen_helper_gvec_fsub_s)
+DO_3S_FP_GVEC(VABD, gen_helper_gvec_fabd_s)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 561cb67286d..8a94856cd28 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5445,6 +5445,9 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
switch (op) {
case NEON_3R_FLOAT_ARITH:
pairwise = (u && size < 2); /* if VPADD (float) */
+ if (!pairwise) {
+ return 1; /* handled by decodetree */
+ }
break;
case NEON_3R_FLOAT_MINMAX:
pairwise = u; /* if VPMIN/VPMAX (float) */
@@ -5501,16 +5504,9 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
switch ((u << 2) | size) {
- case 0: /* VADD */
case 4: /* VPADD */
gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus);
break;
- case 2: /* VSUB */
- gen_helper_vfp_subs(tmp, tmp, tmp2, fpstatus);
- break;
- case 6: /* VABD */
- gen_helper_neon_abd_f32(tmp, tmp, tmp2, fpstatus);
- break;
default:
abort();
}
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index fa33df859e5..50a499299fd 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -691,6 +691,11 @@ static float64 float64_ftsmul(float64 op1, uint64_t op2, float_status *stat)
return result;
}
+static float32 float32_abd(float32 op1, float32 op2, float_status *stat)
+{
+ return float32_abs(float32_sub(op1, op2, stat));
+}
+
#define DO_3OP(NAME, FUNC, TYPE) \
void HELPER(NAME)(void *vd, void *vn, void *vm, void *stat, uint32_t desc) \
{ \
@@ -718,6 +723,8 @@ DO_3OP(gvec_ftsmul_h, float16_ftsmul, float16)
DO_3OP(gvec_ftsmul_s, float32_ftsmul, float32)
DO_3OP(gvec_ftsmul_d, float64_ftsmul, float64)
+DO_3OP(gvec_fabd_s, float32_abd, float32)
+
#ifdef TARGET_AARCH64
DO_3OP(gvec_recps_h, helper_recpsf_f16, float16)
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 40/45] target/arm: Convert Neon VPMIN/VPMAX/VPADD float 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (38 preceding siblings ...)
2020-05-14 14:21 ` [PULL 39/45] target/arm: Convert Neon VADD, VSUB, VABD 3-reg-same insns " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 41/45] target/arm: Convert Neon fp VMUL, VMLA, VMLS " Peter Maydell
` (5 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon float VPMIN, VPMAX and VPADD 3-reg-same insns to
decodetree. These are the only remaining 'pairwise' operations,
so we can delete the pairwise-specific bits of the old decoder's
for-each-element loop now.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-13-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 5 +++
target/arm/translate-neon.inc.c | 63 +++++++++++++++++++++++++++++++++
target/arm/translate.c | 63 +++++----------------------------
3 files changed, 76 insertions(+), 55 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 0dd02f3b720..d66c67ca585 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -48,6 +48,8 @@
# For FP insns the high bit of 'size' is used as part of opcode decode
@3same_fp .... ... . . . . size:1 .... .... .... . q:1 . . .... \
&3same vm=%vm_dp vn=%vn_dp vd=%vd_dp
+@3same_fp_q0 .... ... . . . . size:1 .... .... .... . 0 . . .... \
+ &3same vm=%vm_dp vn=%vn_dp vd=%vd_dp q=0
VHADD_S_3s 1111 001 0 0 . .. .... .... 0000 . . . 0 .... @3same
VHADD_U_3s 1111 001 1 0 . .. .... .... 0000 . . . 0 .... @3same
@@ -176,4 +178,7 @@ VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same
VADD_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 0 .... @3same_fp
VSUB_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
+VPADD_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 0 .... @3same_fp_q0
VABD_fp_3s 1111 001 1 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
+VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0
+VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 540720f5e0d..7bdf1e3fee8 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1049,3 +1049,66 @@ DO_3SAME_VQDMULH(VQRDMULH, qrdmulh)
DO_3S_FP_GVEC(VADD, gen_helper_gvec_fadd_s)
DO_3S_FP_GVEC(VSUB, gen_helper_gvec_fsub_s)
DO_3S_FP_GVEC(VABD, gen_helper_gvec_fabd_s)
+
+static bool do_3same_fp_pair(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn)
+{
+ /* FP operations handled pairwise 32 bits at a time */
+ TCGv_i32 tmp, tmp2, tmp3;
+ TCGv_ptr fpstatus;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ assert(a->q == 0); /* enforced by decode patterns */
+
+ /*
+ * Note that we have to be careful not to clobber the source operands
+ * in the "vm == vd" case by storing the result of the first pass too
+ * early. Since Q is 0 there are always just two passes, so instead
+ * of a complicated loop over each pass we just unroll.
+ */
+ fpstatus = get_fpstatus_ptr(1);
+ tmp = neon_load_reg(a->vn, 0);
+ tmp2 = neon_load_reg(a->vn, 1);
+ fn(tmp, tmp, tmp2, fpstatus);
+ tcg_temp_free_i32(tmp2);
+
+ tmp3 = neon_load_reg(a->vm, 0);
+ tmp2 = neon_load_reg(a->vm, 1);
+ fn(tmp3, tmp3, tmp2, fpstatus);
+ tcg_temp_free_i32(tmp2);
+ tcg_temp_free_ptr(fpstatus);
+
+ neon_store_reg(a->vd, 0, tmp);
+ neon_store_reg(a->vd, 1, tmp3);
+ return true;
+}
+
+/*
+ * For all the functions using this macro, size == 1 means fp16,
+ * which is an architecture extension we don't implement yet.
+ */
+#define DO_3S_FP_PAIR(INSN,FUNC) \
+ static bool trans_##INSN##_fp_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (a->size != 0) { \
+ /* TODO fp16 support */ \
+ return false; \
+ } \
+ return do_3same_fp_pair(s, a, FUNC); \
+ }
+
+DO_3S_FP_PAIR(VPADD, gen_helper_vfp_adds)
+DO_3S_FP_PAIR(VPMAX, gen_helper_vfp_maxs)
+DO_3S_FP_PAIR(VPMIN, gen_helper_vfp_mins)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 8a94856cd28..ca6ed09ec34 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5348,7 +5348,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
int shift;
int pass;
int count;
- int pairwise;
int u;
int vec_size;
uint32_t imm;
@@ -5433,6 +5432,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VPMIN:
case NEON_3R_VPADD_VQRDMLAH:
case NEON_3R_VQDMULH_VQRDMULH:
+ case NEON_3R_FLOAT_ARITH:
/* Already handled by decodetree */
return 1;
}
@@ -5441,16 +5441,11 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
/* 64-bit element instructions: handled by decodetree */
return 1;
}
- pairwise = 0;
switch (op) {
- case NEON_3R_FLOAT_ARITH:
- pairwise = (u && size < 2); /* if VPADD (float) */
- if (!pairwise) {
- return 1; /* handled by decodetree */
- }
- break;
case NEON_3R_FLOAT_MINMAX:
- pairwise = u; /* if VPMIN/VPMAX (float) */
+ if (u) {
+ return 1; /* VPMIN/VPMAX handled by decodetree */
+ }
break;
case NEON_3R_FLOAT_CMP:
if (!u && size) {
@@ -5478,41 +5473,12 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break;
}
- if (pairwise && q) {
- /* All the pairwise insns UNDEF if Q is set */
- return 1;
- }
-
for (pass = 0; pass < (q ? 4 : 2); pass++) {
- if (pairwise) {
- /* Pairwise. */
- if (pass < 1) {
- tmp = neon_load_reg(rn, 0);
- tmp2 = neon_load_reg(rn, 1);
- } else {
- tmp = neon_load_reg(rm, 0);
- tmp2 = neon_load_reg(rm, 1);
- }
- } else {
- /* Elementwise. */
- tmp = neon_load_reg(rn, pass);
- tmp2 = neon_load_reg(rm, pass);
- }
+ /* Elementwise. */
+ tmp = neon_load_reg(rn, pass);
+ tmp2 = neon_load_reg(rm, pass);
switch (op) {
- case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- switch ((u << 2) | size) {
- case 4: /* VPADD */
- gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus);
- break;
- default:
- abort();
- }
- tcg_temp_free_ptr(fpstatus);
- break;
- }
case NEON_3R_FLOAT_MULTIPLY:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
@@ -5603,22 +5569,9 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
}
tcg_temp_free_i32(tmp2);
- /* Save the result. For elementwise operations we can put it
- straight into the destination register. For pairwise operations
- we have to be careful to avoid clobbering the source operands. */
- if (pairwise && rd == rm) {
- neon_store_scratch(pass, tmp);
- } else {
- neon_store_reg(rd, pass, tmp);
- }
+ neon_store_reg(rd, pass, tmp);
} /* for pass */
- if (pairwise && rd == rm) {
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
- tmp = neon_load_scratch(pass);
- neon_store_reg(rd, pass, tmp);
- }
- }
/* End of 3 register same size operations. */
} else if (insn & (1 << 4)) {
if ((insn & 0x00380080) != 0) {
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 41/45] target/arm: Convert Neon fp VMUL, VMLA, VMLS 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (39 preceding siblings ...)
2020-05-14 14:21 ` [PULL 40/45] target/arm: Convert Neon VPMIN/VPMAX/VPADD float " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 42/45] target/arm: Convert Neon 3-reg-same compare " Peter Maydell
` (4 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon integer VMUL, VMLA, and VMLS 3-reg-same inssn to
decodetree.
We don't have a gvec helper for multiply-accumulate, so VMLA and VMLS
need a loop function do_3same_fp(). This takes a reads_vd parameter
to do_3same_fp() which tells it to load the old value into vd before
calling the callback function, in the same way that the do_vfp_3op_sp()
and do_vfp_3op_dp() functions in translate-vfp.inc.c work. (The
only uses in this patch pass reads_vd == true, but later commits
will use reads_vd == false.)
This conversion fixes in passing an underdecoding for VMUL
(originally reported by Fredrik Strupe <fredrik@strupe.net>): bit 1
of the 'size' field must be 0. The old decoder didn't enforce this,
but the decodetree pattern does.
The gen_VMLA_fp_reg() function performs the addition operation
with the operands in the opposite order to the old decoder:
since Neon sets 'default NaN mode' float32_add operations are
commutative so there is no behaviour difference, but putting
them this way around matches the Arm ARM pseudocode and the
required operation order for the subtraction in gen_VMLS_fp_reg().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-14-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 3 ++
target/arm/translate-neon.inc.c | 81 +++++++++++++++++++++++++++++++++
target/arm/translate.c | 17 +------
3 files changed, 85 insertions(+), 16 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index d66c67ca585..4c2f8c770d1 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -180,5 +180,8 @@ VADD_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 0 .... @3same_fp
VSUB_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
VPADD_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 0 .... @3same_fp_q0
VABD_fp_3s 1111 001 1 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
+VMLA_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 1 .... @3same_fp
+VMLS_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 1 .... @3same_fp
+VMUL_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 1 .... @3same_fp
VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0
VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 7bdf1e3fee8..18896598bb4 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1022,6 +1022,55 @@ DO_3SAME_PAIR(VPADD, padd_u)
DO_3SAME_VQDMULH(VQDMULH, qdmulh)
DO_3SAME_VQDMULH(VQRDMULH, qrdmulh)
+static bool do_3same_fp(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn,
+ bool reads_vd)
+{
+ /*
+ * FP operations handled elementwise 32 bits at a time.
+ * If reads_vd is true then the old value of Vd will be
+ * loaded before calling the callback function. This is
+ * used for multiply-accumulate type operations.
+ */
+ TCGv_i32 tmp, tmp2;
+ int pass;
+
+ if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
+ return false;
+ }
+
+ /* UNDEF accesses to D16-D31 if they don't exist. */
+ if (!dc_isar_feature(aa32_simd_r32, s) &&
+ ((a->vd | a->vn | a->vm) & 0x10)) {
+ return false;
+ }
+
+ if ((a->vn | a->vm | a->vd) & a->q) {
+ return false;
+ }
+
+ if (!vfp_access_check(s)) {
+ return true;
+ }
+
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ for (pass = 0; pass < (a->q ? 4 : 2); pass++) {
+ tmp = neon_load_reg(a->vn, pass);
+ tmp2 = neon_load_reg(a->vm, pass);
+ if (reads_vd) {
+ TCGv_i32 tmp_rd = neon_load_reg(a->vd, pass);
+ fn(tmp_rd, tmp, tmp2, fpstatus);
+ neon_store_reg(a->vd, pass, tmp_rd);
+ tcg_temp_free_i32(tmp);
+ } else {
+ fn(tmp, tmp, tmp2, fpstatus);
+ neon_store_reg(a->vd, pass, tmp);
+ }
+ tcg_temp_free_i32(tmp2);
+ }
+ tcg_temp_free_ptr(fpstatus);
+ return true;
+}
+
/*
* For all the functions using this macro, size == 1 means fp16,
* which is an architecture extension we don't implement yet.
@@ -1049,6 +1098,38 @@ DO_3SAME_VQDMULH(VQRDMULH, qrdmulh)
DO_3S_FP_GVEC(VADD, gen_helper_gvec_fadd_s)
DO_3S_FP_GVEC(VSUB, gen_helper_gvec_fsub_s)
DO_3S_FP_GVEC(VABD, gen_helper_gvec_fabd_s)
+DO_3S_FP_GVEC(VMUL, gen_helper_gvec_fmul_s)
+
+/*
+ * For all the functions using this macro, size == 1 means fp16,
+ * which is an architecture extension we don't implement yet.
+ */
+#define DO_3S_FP(INSN,FUNC,READS_VD) \
+ static bool trans_##INSN##_fp_3s(DisasContext *s, arg_3same *a) \
+ { \
+ if (a->size != 0) { \
+ /* TODO fp16 support */ \
+ return false; \
+ } \
+ return do_3same_fp(s, a, FUNC, READS_VD); \
+ }
+
+static void gen_VMLA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
+ TCGv_ptr fpstatus)
+{
+ gen_helper_vfp_muls(vn, vn, vm, fpstatus);
+ gen_helper_vfp_adds(vd, vd, vn, fpstatus);
+}
+
+static void gen_VMLS_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
+ TCGv_ptr fpstatus)
+{
+ gen_helper_vfp_muls(vn, vn, vm, fpstatus);
+ gen_helper_vfp_subs(vd, vd, vn, fpstatus);
+}
+
+DO_3S_FP(VMLA, gen_VMLA_fp_3s, true)
+DO_3S_FP(VMLS, gen_VMLS_fp_3s, true)
static bool do_3same_fp_pair(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn)
{
diff --git a/target/arm/translate.c b/target/arm/translate.c
index ca6ed09ec34..06b6925d31e 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5433,6 +5433,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VPADD_VQRDMLAH:
case NEON_3R_VQDMULH_VQRDMULH:
case NEON_3R_FLOAT_ARITH:
+ case NEON_3R_FLOAT_MULTIPLY:
/* Already handled by decodetree */
return 1;
}
@@ -5479,22 +5480,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp = neon_load_reg(rn, pass);
tmp2 = neon_load_reg(rm, pass);
switch (op) {
- case NEON_3R_FLOAT_MULTIPLY:
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus);
- if (!u) {
- tcg_temp_free_i32(tmp2);
- tmp2 = neon_load_reg(rd, pass);
- if (size == 0) {
- gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus);
- } else {
- gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus);
- }
- }
- tcg_temp_free_ptr(fpstatus);
- break;
- }
case NEON_3R_FLOAT_CMP:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 42/45] target/arm: Convert Neon 3-reg-same compare insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (40 preceding siblings ...)
2020-05-14 14:21 ` [PULL 41/45] target/arm: Convert Neon fp VMUL, VMLA, VMLS " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 43/45] target/arm: Move 'env' argument of recps_f32 and rsqrts_f32 helpers to usual place Peter Maydell
` (3 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon integer 3-reg-same compare insns VCGE, VCGT,
VCEQ, VACGE and VACGT to decodetree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-15-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 5 +++++
target/arm/translate-neon.inc.c | 6 +++++
target/arm/translate.c | 39 ++-------------------------------
3 files changed, 13 insertions(+), 37 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 4c2f8c770d1..29cf54c217c 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -183,5 +183,10 @@ VABD_fp_3s 1111 001 1 0 . 1 . .... .... 1101 ... 0 .... @3same_fp
VMLA_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 1 .... @3same_fp
VMLS_fp_3s 1111 001 0 0 . 1 . .... .... 1101 ... 1 .... @3same_fp
VMUL_fp_3s 1111 001 1 0 . 0 . .... .... 1101 ... 1 .... @3same_fp
+VCEQ_fp_3s 1111 001 0 0 . 0 . .... .... 1110 ... 0 .... @3same_fp
+VCGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 0 .... @3same_fp
+VACGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 1 .... @3same_fp
+VCGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 0 .... @3same_fp
+VACGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 1 .... @3same_fp
VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0
VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 18896598bb4..eeea71e3bec 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1114,6 +1114,12 @@ DO_3S_FP_GVEC(VMUL, gen_helper_gvec_fmul_s)
return do_3same_fp(s, a, FUNC, READS_VD); \
}
+DO_3S_FP(VCEQ, gen_helper_neon_ceq_f32, false)
+DO_3S_FP(VCGE, gen_helper_neon_cge_f32, false)
+DO_3S_FP(VCGT, gen_helper_neon_cgt_f32, false)
+DO_3S_FP(VACGE, gen_helper_neon_acge_f32, false)
+DO_3S_FP(VACGT, gen_helper_neon_acgt_f32, false)
+
static void gen_VMLA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
TCGv_ptr fpstatus)
{
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 06b6925d31e..b9fcbbcbcb5 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5434,6 +5434,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VQDMULH_VQRDMULH:
case NEON_3R_FLOAT_ARITH:
case NEON_3R_FLOAT_MULTIPLY:
+ case NEON_3R_FLOAT_CMP:
+ case NEON_3R_FLOAT_ACMP:
/* Already handled by decodetree */
return 1;
}
@@ -5448,17 +5450,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
return 1; /* VPMIN/VPMAX handled by decodetree */
}
break;
- case NEON_3R_FLOAT_CMP:
- if (!u && size) {
- /* no encoding for U=0 C=1x */
- return 1;
- }
- break;
- case NEON_3R_FLOAT_ACMP:
- if (!u) {
- return 1;
- }
- break;
case NEON_3R_FLOAT_MISC:
/* VMAXNM/VMINNM in ARMv8 */
if (u && !arm_dc_feature(s, ARM_FEATURE_V8)) {
@@ -5480,32 +5471,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp = neon_load_reg(rn, pass);
tmp2 = neon_load_reg(rm, pass);
switch (op) {
- case NEON_3R_FLOAT_CMP:
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- if (!u) {
- gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus);
- } else {
- if (size == 0) {
- gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus);
- } else {
- gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus);
- }
- }
- tcg_temp_free_ptr(fpstatus);
- break;
- }
- case NEON_3R_FLOAT_ACMP:
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- if (size == 0) {
- gen_helper_neon_acge_f32(tmp, tmp, tmp2, fpstatus);
- } else {
- gen_helper_neon_acgt_f32(tmp, tmp, tmp2, fpstatus);
- }
- tcg_temp_free_ptr(fpstatus);
- break;
- }
case NEON_3R_FLOAT_MINMAX:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 43/45] target/arm: Move 'env' argument of recps_f32 and rsqrts_f32 helpers to usual place
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (41 preceding siblings ...)
2020-05-14 14:21 ` [PULL 42/45] target/arm: Convert Neon 3-reg-same compare " Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 44/45] target/arm: Convert Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS to decodetree Peter Maydell
` (2 subsequent siblings)
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
The usual location for the env argument in the argument list of a TCG helper
is immediately after the return-value argument. recps_f32 and rsqrts_f32
differ in that they put it at the end.
Move the env argument to its usual place; this will allow us to
more easily use these helper functions with the gvec APIs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-16-peter.maydell@linaro.org
---
target/arm/helper.h | 4 ++--
target/arm/translate.c | 4 ++--
target/arm/vfp_helper.c | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 6e9629c87b0..49336dc432c 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -203,8 +203,8 @@ DEF_HELPER_FLAGS_3(vfp_fcvt_f64_to_f16, TCG_CALL_NO_RWG, f16, f64, ptr, i32)
DEF_HELPER_4(vfp_muladdd, f64, f64, f64, f64, ptr)
DEF_HELPER_4(vfp_muladds, f32, f32, f32, f32, ptr)
-DEF_HELPER_3(recps_f32, f32, f32, f32, env)
-DEF_HELPER_3(rsqrts_f32, f32, f32, f32, env)
+DEF_HELPER_3(recps_f32, f32, env, f32, f32)
+DEF_HELPER_3(rsqrts_f32, f32, env, f32, f32)
DEF_HELPER_FLAGS_2(recpe_f16, TCG_CALL_NO_RWG, f16, f16, ptr)
DEF_HELPER_FLAGS_2(recpe_f32, TCG_CALL_NO_RWG, f32, f32, ptr)
DEF_HELPER_FLAGS_2(recpe_f64, TCG_CALL_NO_RWG, f64, f64, ptr)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index b9fcbbcbcb5..23e3705172b 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5494,9 +5494,9 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tcg_temp_free_ptr(fpstatus);
} else {
if (size == 0) {
- gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env);
+ gen_helper_recps_f32(tmp, cpu_env, tmp, tmp2);
} else {
- gen_helper_rsqrts_f32(tmp, tmp, tmp2, cpu_env);
+ gen_helper_rsqrts_f32(tmp, cpu_env, tmp, tmp2);
}
}
break;
diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c
index ec007fce255..88483d4066d 100644
--- a/target/arm/vfp_helper.c
+++ b/target/arm/vfp_helper.c
@@ -581,7 +581,7 @@ uint32_t HELPER(vfp_fcvt_f64_to_f16)(float64 a, void *fpstp, uint32_t ahp_mode)
#define float32_three make_float32(0x40400000)
#define float32_one_point_five make_float32(0x3fc00000)
-float32 HELPER(recps_f32)(float32 a, float32 b, CPUARMState *env)
+float32 HELPER(recps_f32)(CPUARMState *env, float32 a, float32 b)
{
float_status *s = &env->vfp.standard_fp_status;
if ((float32_is_infinity(a) && float32_is_zero_or_denormal(b)) ||
@@ -594,7 +594,7 @@ float32 HELPER(recps_f32)(float32 a, float32 b, CPUARMState *env)
return float32_sub(float32_two, float32_mul(a, b, s), s);
}
-float32 HELPER(rsqrts_f32)(float32 a, float32 b, CPUARMState *env)
+float32 HELPER(rsqrts_f32)(CPUARMState *env, float32 a, float32 b)
{
float_status *s = &env->vfp.standard_fp_status;
float32 product;
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 44/45] target/arm: Convert Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (42 preceding siblings ...)
2020-05-14 14:21 ` [PULL 43/45] target/arm: Move 'env' argument of recps_f32 and rsqrts_f32 helpers to usual place Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 14:21 ` [PULL 45/45] target/arm: Convert NEON VFMA, VFMS 3-reg-same insns " Peter Maydell
2020-05-14 16:42 ` [PULL 00/45] target-arm queue Peter Maydell
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS 3-reg-same
insns to decodetree. (These are all the remaining non-accumulation
instructions in this group.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-17-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 6 +++
target/arm/translate-neon.inc.c | 70 +++++++++++++++++++++++++++++++++
target/arm/translate.c | 42 +-------------------
3 files changed, 78 insertions(+), 40 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 29cf54c217c..9c288865070 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -188,5 +188,11 @@ VCGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 0 .... @3same_fp
VACGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 1 .... @3same_fp
VCGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 0 .... @3same_fp
VACGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 1 .... @3same_fp
+VMAX_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 0 .... @3same_fp
+VMIN_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 0 .... @3same_fp
VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0
VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0
+VRECPS_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 1 .... @3same_fp
+VRSQRTS_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 1 .... @3same_fp
+VMAXNM_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 1 .... @3same_fp
+VMINNM_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 1 .... @3same_fp
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index eeea71e3bec..5e9e53c5c32 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1119,6 +1119,8 @@ DO_3S_FP(VCGE, gen_helper_neon_cge_f32, false)
DO_3S_FP(VCGT, gen_helper_neon_cgt_f32, false)
DO_3S_FP(VACGE, gen_helper_neon_acge_f32, false)
DO_3S_FP(VACGT, gen_helper_neon_acgt_f32, false)
+DO_3S_FP(VMAX, gen_helper_vfp_maxs, false)
+DO_3S_FP(VMIN, gen_helper_vfp_mins, false)
static void gen_VMLA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
TCGv_ptr fpstatus)
@@ -1137,6 +1139,74 @@ static void gen_VMLS_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
DO_3S_FP(VMLA, gen_VMLA_fp_3s, true)
DO_3S_FP(VMLS, gen_VMLS_fp_3s, true)
+static bool trans_VMAXNM_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (!arm_dc_feature(s, ARM_FEATURE_V8)) {
+ return false;
+ }
+
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same_fp(s, a, gen_helper_vfp_maxnums, false);
+}
+
+static bool trans_VMINNM_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (!arm_dc_feature(s, ARM_FEATURE_V8)) {
+ return false;
+ }
+
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same_fp(s, a, gen_helper_vfp_minnums, false);
+}
+
+WRAP_ENV_FN(gen_VRECPS_tramp, gen_helper_recps_f32)
+
+static void gen_VRECPS_fp_3s(unsigned vece, uint32_t rd_ofs,
+ uint32_t rn_ofs, uint32_t rm_ofs,
+ uint32_t oprsz, uint32_t maxsz)
+{
+ static const GVecGen3 ops = { .fni4 = gen_VRECPS_tramp };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops);
+}
+
+static bool trans_VRECPS_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same(s, a, gen_VRECPS_fp_3s);
+}
+
+WRAP_ENV_FN(gen_VRSQRTS_tramp, gen_helper_rsqrts_f32)
+
+static void gen_VRSQRTS_fp_3s(unsigned vece, uint32_t rd_ofs,
+ uint32_t rn_ofs, uint32_t rm_ofs,
+ uint32_t oprsz, uint32_t maxsz)
+{
+ static const GVecGen3 ops = { .fni4 = gen_VRSQRTS_tramp };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops);
+}
+
+static bool trans_VRSQRTS_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same(s, a, gen_VRSQRTS_fp_3s);
+}
+
static bool do_3same_fp_pair(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn)
{
/* FP operations handled pairwise 32 bits at a time */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 23e3705172b..c1d4fab8e80 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5436,6 +5436,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_FLOAT_MULTIPLY:
case NEON_3R_FLOAT_CMP:
case NEON_3R_FLOAT_ACMP:
+ case NEON_3R_FLOAT_MINMAX:
+ case NEON_3R_FLOAT_MISC:
/* Already handled by decodetree */
return 1;
}
@@ -5445,17 +5447,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
return 1;
}
switch (op) {
- case NEON_3R_FLOAT_MINMAX:
- if (u) {
- return 1; /* VPMIN/VPMAX handled by decodetree */
- }
- break;
- case NEON_3R_FLOAT_MISC:
- /* VMAXNM/VMINNM in ARMv8 */
- if (u && !arm_dc_feature(s, ARM_FEATURE_V8)) {
- return 1;
- }
- break;
case NEON_3R_VFM_VQRDMLSH:
if (!dc_isar_feature(aa32_simdfmac, s)) {
return 1;
@@ -5471,35 +5462,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp = neon_load_reg(rn, pass);
tmp2 = neon_load_reg(rm, pass);
switch (op) {
- case NEON_3R_FLOAT_MINMAX:
- {
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- if (size == 0) {
- gen_helper_vfp_maxs(tmp, tmp, tmp2, fpstatus);
- } else {
- gen_helper_vfp_mins(tmp, tmp, tmp2, fpstatus);
- }
- tcg_temp_free_ptr(fpstatus);
- break;
- }
- case NEON_3R_FLOAT_MISC:
- if (u) {
- /* VMAXNM/VMINNM */
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- if (size == 0) {
- gen_helper_vfp_maxnums(tmp, tmp, tmp2, fpstatus);
- } else {
- gen_helper_vfp_minnums(tmp, tmp, tmp2, fpstatus);
- }
- tcg_temp_free_ptr(fpstatus);
- } else {
- if (size == 0) {
- gen_helper_recps_f32(tmp, cpu_env, tmp, tmp2);
- } else {
- gen_helper_rsqrts_f32(tmp, cpu_env, tmp, tmp2);
- }
- }
- break;
case NEON_3R_VFM_VQRDMLSH:
{
/* VFMA, VFMS: fused multiply-add */
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PULL 45/45] target/arm: Convert NEON VFMA, VFMS 3-reg-same insns to decodetree
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (43 preceding siblings ...)
2020-05-14 14:21 ` [PULL 44/45] target/arm: Convert Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS to decodetree Peter Maydell
@ 2020-05-14 14:21 ` Peter Maydell
2020-05-14 16:42 ` [PULL 00/45] target-arm queue Peter Maydell
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 14:21 UTC (permalink / raw)
To: qemu-devel
Convert the Neon floating point VFMA and VFMS insn to decodetree.
These are the last insns in the 3-reg-same group so we can
remove all the support/loop code from the old decoder.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-18-peter.maydell@linaro.org
---
target/arm/neon-dp.decode | 3 +
target/arm/translate-neon.inc.c | 41 ++++++++
target/arm/translate.c | 176 +-------------------------------
3 files changed, 46 insertions(+), 174 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 9c288865070..8beb1db768b 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -174,6 +174,9 @@ SHA256H2_3s 1111 001 1 0 . 01 .... .... 1100 . 1 . 0 .... \
SHA256SU1_3s 1111 001 1 0 . 10 .... .... 1100 . 1 . 0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
+VFMA_fp_3s 1111 001 0 0 . 0 . .... .... 1100 ... 1 .... @3same_fp
+VFMS_fp_3s 1111 001 0 0 . 1 . .... .... 1100 ... 1 .... @3same_fp
+
VQRDMLSH_3s 1111 001 1 0 . .. .... .... 1100 ... 1 .... @3same
VADD_fp_3s 1111 001 0 0 . 0 . .... .... 1101 ... 0 .... @3same_fp
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 5e9e53c5c32..3fe65a0b080 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1207,6 +1207,47 @@ static bool trans_VRSQRTS_fp_3s(DisasContext *s, arg_3same *a)
return do_3same(s, a, gen_VRSQRTS_fp_3s);
}
+static void gen_VFMA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
+ TCGv_ptr fpstatus)
+{
+ gen_helper_vfp_muladds(vd, vn, vm, vd, fpstatus);
+}
+
+static bool trans_VFMA_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (!dc_isar_feature(aa32_simdfmac, s)) {
+ return false;
+ }
+
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same_fp(s, a, gen_VFMA_fp_3s, true);
+}
+
+static void gen_VFMS_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
+ TCGv_ptr fpstatus)
+{
+ gen_helper_vfp_negs(vn, vn);
+ gen_helper_vfp_muladds(vd, vn, vm, vd, fpstatus);
+}
+
+static bool trans_VFMS_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (!dc_isar_feature(aa32_simdfmac, s)) {
+ return false;
+ }
+
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same_fp(s, a, gen_VFMS_fp_3s, true);
+}
+
static bool do_3same_fp_pair(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn)
{
/* FP operations handled pairwise 32 bits at a time */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index c1d4fab8e80..4c9bb8b5ac0 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -3391,78 +3391,6 @@ static void gen_neon_narrow_op(int op, int u, int size,
}
}
-/* Symbolic constants for op fields for Neon 3-register same-length.
- * The values correspond to bits [11:8,4]; see the ARM ARM DDI0406B
- * table A7-9.
- */
-#define NEON_3R_VHADD 0
-#define NEON_3R_VQADD 1
-#define NEON_3R_VRHADD 2
-#define NEON_3R_LOGIC 3 /* VAND,VBIC,VORR,VMOV,VORN,VEOR,VBIF,VBIT,VBSL */
-#define NEON_3R_VHSUB 4
-#define NEON_3R_VQSUB 5
-#define NEON_3R_VCGT 6
-#define NEON_3R_VCGE 7
-#define NEON_3R_VSHL 8
-#define NEON_3R_VQSHL 9
-#define NEON_3R_VRSHL 10
-#define NEON_3R_VQRSHL 11
-#define NEON_3R_VMAX 12
-#define NEON_3R_VMIN 13
-#define NEON_3R_VABD 14
-#define NEON_3R_VABA 15
-#define NEON_3R_VADD_VSUB 16
-#define NEON_3R_VTST_VCEQ 17
-#define NEON_3R_VML 18 /* VMLA, VMLS */
-#define NEON_3R_VMUL 19
-#define NEON_3R_VPMAX 20
-#define NEON_3R_VPMIN 21
-#define NEON_3R_VQDMULH_VQRDMULH 22
-#define NEON_3R_VPADD_VQRDMLAH 23
-#define NEON_3R_SHA 24 /* SHA1C,SHA1P,SHA1M,SHA1SU0,SHA256H{2},SHA256SU1 */
-#define NEON_3R_VFM_VQRDMLSH 25 /* VFMA, VFMS, VQRDMLSH */
-#define NEON_3R_FLOAT_ARITH 26 /* float VADD, VSUB, VPADD, VABD */
-#define NEON_3R_FLOAT_MULTIPLY 27 /* float VMLA, VMLS, VMUL */
-#define NEON_3R_FLOAT_CMP 28 /* float VCEQ, VCGE, VCGT */
-#define NEON_3R_FLOAT_ACMP 29 /* float VACGE, VACGT, VACLE, VACLT */
-#define NEON_3R_FLOAT_MINMAX 30 /* float VMIN, VMAX */
-#define NEON_3R_FLOAT_MISC 31 /* float VRECPS, VRSQRTS, VMAXNM/MINNM */
-
-static const uint8_t neon_3r_sizes[] = {
- [NEON_3R_VHADD] = 0x7,
- [NEON_3R_VQADD] = 0xf,
- [NEON_3R_VRHADD] = 0x7,
- [NEON_3R_LOGIC] = 0xf, /* size field encodes op type */
- [NEON_3R_VHSUB] = 0x7,
- [NEON_3R_VQSUB] = 0xf,
- [NEON_3R_VCGT] = 0x7,
- [NEON_3R_VCGE] = 0x7,
- [NEON_3R_VSHL] = 0xf,
- [NEON_3R_VQSHL] = 0xf,
- [NEON_3R_VRSHL] = 0xf,
- [NEON_3R_VQRSHL] = 0xf,
- [NEON_3R_VMAX] = 0x7,
- [NEON_3R_VMIN] = 0x7,
- [NEON_3R_VABD] = 0x7,
- [NEON_3R_VABA] = 0x7,
- [NEON_3R_VADD_VSUB] = 0xf,
- [NEON_3R_VTST_VCEQ] = 0x7,
- [NEON_3R_VML] = 0x7,
- [NEON_3R_VMUL] = 0x7,
- [NEON_3R_VPMAX] = 0x7,
- [NEON_3R_VPMIN] = 0x7,
- [NEON_3R_VQDMULH_VQRDMULH] = 0x6,
- [NEON_3R_VPADD_VQRDMLAH] = 0x7,
- [NEON_3R_SHA] = 0xf, /* size field encodes op type */
- [NEON_3R_VFM_VQRDMLSH] = 0x7, /* For VFM, size bit 1 encodes op */
- [NEON_3R_FLOAT_ARITH] = 0x5, /* size bit 1 encodes op */
- [NEON_3R_FLOAT_MULTIPLY] = 0x5, /* size bit 1 encodes op */
- [NEON_3R_FLOAT_CMP] = 0x5, /* size bit 1 encodes op */
- [NEON_3R_FLOAT_ACMP] = 0x5, /* size bit 1 encodes op */
- [NEON_3R_FLOAT_MINMAX] = 0x5, /* size bit 1 encodes op */
- [NEON_3R_FLOAT_MISC] = 0x5, /* size bit 1 encodes op */
-};
-
/* Symbolic constants for op fields for Neon 2-register miscellaneous.
* The values correspond to bits [17:16,10:7]; see the ARM ARM DDI0406B
* table A7-13.
@@ -5383,108 +5311,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
rm_ofs = neon_reg_offset(rm, 0);
if ((insn & (1 << 23)) == 0) {
- /* Three register same length. */
- op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1);
- /* Catch invalid op and bad size combinations: UNDEF */
- if ((neon_3r_sizes[op] & (1 << size)) == 0) {
- return 1;
- }
- /* All insns of this form UNDEF for either this condition or the
- * superset of cases "Q==1"; we catch the latter later.
- */
- if (q && ((rd | rn | rm) & 1)) {
- return 1;
- }
- switch (op) {
- case NEON_3R_VFM_VQRDMLSH:
- if (!u) {
- /* VFM, VFMS */
- if (size == 1) {
- return 1;
- }
- break;
- }
- /* VQRDMLSH : handled by decodetree */
- return 1;
-
- case NEON_3R_VADD_VSUB:
- case NEON_3R_LOGIC:
- case NEON_3R_VMAX:
- case NEON_3R_VMIN:
- case NEON_3R_VTST_VCEQ:
- case NEON_3R_VCGT:
- case NEON_3R_VCGE:
- case NEON_3R_VQADD:
- case NEON_3R_VQSUB:
- case NEON_3R_VMUL:
- case NEON_3R_VML:
- case NEON_3R_VSHL:
- case NEON_3R_SHA:
- case NEON_3R_VHADD:
- case NEON_3R_VRHADD:
- case NEON_3R_VHSUB:
- case NEON_3R_VABD:
- case NEON_3R_VABA:
- case NEON_3R_VQSHL:
- case NEON_3R_VRSHL:
- case NEON_3R_VQRSHL:
- case NEON_3R_VPMAX:
- case NEON_3R_VPMIN:
- case NEON_3R_VPADD_VQRDMLAH:
- case NEON_3R_VQDMULH_VQRDMULH:
- case NEON_3R_FLOAT_ARITH:
- case NEON_3R_FLOAT_MULTIPLY:
- case NEON_3R_FLOAT_CMP:
- case NEON_3R_FLOAT_ACMP:
- case NEON_3R_FLOAT_MINMAX:
- case NEON_3R_FLOAT_MISC:
- /* Already handled by decodetree */
- return 1;
- }
-
- if (size == 3) {
- /* 64-bit element instructions: handled by decodetree */
- return 1;
- }
- switch (op) {
- case NEON_3R_VFM_VQRDMLSH:
- if (!dc_isar_feature(aa32_simdfmac, s)) {
- return 1;
- }
- break;
- default:
- break;
- }
-
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
-
- /* Elementwise. */
- tmp = neon_load_reg(rn, pass);
- tmp2 = neon_load_reg(rm, pass);
- switch (op) {
- case NEON_3R_VFM_VQRDMLSH:
- {
- /* VFMA, VFMS: fused multiply-add */
- TCGv_ptr fpstatus = get_fpstatus_ptr(1);
- TCGv_i32 tmp3 = neon_load_reg(rd, pass);
- if (size) {
- /* VFMS */
- gen_helper_vfp_negs(tmp, tmp);
- }
- gen_helper_vfp_muladds(tmp, tmp, tmp2, tmp3, fpstatus);
- tcg_temp_free_i32(tmp3);
- tcg_temp_free_ptr(fpstatus);
- break;
- }
- default:
- abort();
- }
- tcg_temp_free_i32(tmp2);
-
- neon_store_reg(rd, pass, tmp);
-
- } /* for pass */
- /* End of 3 register same size operations. */
+ /* Three register same length: handled by decodetree */
+ return 1;
} else if (insn & (1 << 4)) {
if ((insn & 0x00380080) != 0) {
/* Two registers and shift. */
--
2.20.1
^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [PULL 00/45] target-arm queue
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
` (44 preceding siblings ...)
2020-05-14 14:21 ` [PULL 45/45] target/arm: Convert NEON VFMA, VFMS 3-reg-same insns " Peter Maydell
@ 2020-05-14 16:42 ` Peter Maydell
45 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-14 16:42 UTC (permalink / raw)
To: QEMU Developers
On Thu, 14 May 2020 at 15:21, Peter Maydell <peter.maydell@linaro.org> wrote:
>
> Mostly this is patches from me and RTH cleaning up and doing
> more decodetree conversion for AArch32 Neon. The major new feature
> is Dongjiu Geng's patchset to report host memory errors to KVM guests;
> also a new aspeed board from Patrick Williams.
>
> thanks
> -- PMM
>
> The following changes since commit 035b448b84f3557206abc44d786c5d3db2638f7d:
>
> Merge remote-tracking branch 'remotes/gkurz/tags/9p-next-2020-05-14' into staging (2020-05-14 10:58:30 +0100)
>
> are available in the Git repository at:
>
> https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20200514
>
> for you to fetch changes up to e95485f85657be21135c17a9226e297c21e73360:
>
> target/arm: Convert NEON VFMA, VFMS 3-reg-same insns to decodetree (2020-05-14 15:03:09 +0100)
>
> ----------------------------------------------------------------
> target-arm queue:
> * target/arm: Use correct GDB XML for M-profile cores
> * target/arm: Code cleanup to use gvec APIs better
> * aspeed: Add support for the sonorapass-bmc board
> * target/arm: Support reporting KVM host memory errors
> to the guest via ACPI notifications
> * target/arm: Finish conversion of Neon 3-reg-same insns to decodetree
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/5.1
for any user-visible changes.
-- PMM
^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table
2020-05-14 14:21 ` [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table Peter Maydell
@ 2020-05-21 13:03 ` Peter Maydell
2020-05-21 15:31 ` Michael S. Tsirkin
0 siblings, 1 reply; 52+ messages in thread
From: Peter Maydell @ 2020-05-21 13:03 UTC (permalink / raw)
To: QEMU Developers; +Cc: Igor Mammedov, Dongjiu Geng, Michael S. Tsirkin
On Thu, 14 May 2020 at 15:22, Peter Maydell <peter.maydell@linaro.org> wrote:
>
> From: Dongjiu Geng <gengdongjiu@huawei.com>
>
> kvm_arch_on_sigbus_vcpu() error injection uses source_id as
> index in etc/hardware_errors to find out Error Status Data
> Block entry corresponding to error source. So supported source_id
> values should be assigned here and not be changed afterwards to
> make sure that guest will write error into expected Error Status
> Data Block.
>
> Before QEMU writes a new error to ACPI table, it will check whether
> previous error has been acknowledged. If not acknowledged, the new
> errors will be ignored and not be recorded. For the errors section
> type, QEMU simulate it to memory section error.
Hi; Coverity points out (CID 1428962) that there is
unreachable code in this function:
> +static int acpi_ghes_record_mem_error(uint64_t error_block_address,
> + uint64_t error_physical_addr)
> +{
> + GArray *block;
> +
> + /* Memory Error Section Type */
> + const uint8_t uefi_cper_mem_sec[] =
> + UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
> + 0xED, 0x7C, 0x83, 0xB1);
> +
> + /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data,
> + * Table 17-13 Generic Error Data Entry
> + */
> + QemuUUID fru_id = {};
> + uint32_t data_length;
> +
> + block = g_array_new(false, true /* clear */, 1);
> +
> + /* This is the length if adding a new generic error data entry*/
> + data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
Here data_length has a constant value...
> +
> + /*
> + * Check whether it will run out of the preallocated memory if adding a new
> + * generic error data entry
> + */
> + if ((data_length + ACPI_GHES_GESB_SIZE) > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
...but here we immediately have a runtime check which can't possibly
fail because of the values of the constants involved, so this
if() block is dead code.
> + error_report("Not enough memory to record new CPER!!!");
> + g_array_free(block, true);
> + return -1;
> + }
What was this code trying to do? Is the initial value of
data_length incorrect, or is the if() condition wrong, or
should this simply have been an assert() ?
thanks
-- PMM
^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PULL 17/45] target/arm: Vectorize SABA/UABA
2020-05-14 14:21 ` [PULL 17/45] target/arm: Vectorize SABA/UABA Peter Maydell
@ 2020-05-21 13:11 ` Peter Maydell
0 siblings, 0 replies; 52+ messages in thread
From: Peter Maydell @ 2020-05-21 13:11 UTC (permalink / raw)
To: QEMU Developers, Richard Henderson
On Thu, 14 May 2020 at 15:22, Peter Maydell <peter.maydell@linaro.org> wrote:
>
> From: Richard Henderson <richard.henderson@linaro.org>
>
> Include 64-bit element size in preparation for SVE2.
Hi; Coverity points out that after this commit there is
dead code in disas_simd_3same_int():
> diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
> index 54b06553a65..991e451644c 100644
> --- a/target/arm/translate-a64.c
> +++ b/target/arm/translate-a64.c
> @@ -11197,6 +11197,13 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
> gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_sabd, size);
> }
> return;
> + case 0xf: /* SABA, UABA */
> + if (u) {
> + gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_uaba, size);
> + } else {
> + gen_gvec_fn3(s, is_q, rd, rn, rm, gen_gvec_saba, size);
> + }
> + return;
Here case 0xf is handled entirely and we return early...
> case 0x10: /* ADD, SUB */
> if (u) {
> gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_sub, size);
> @@ -11329,16 +11336,6 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
> genenvfn = fns[size][u];
> break;
> }
> - case 0xf: /* SABA, UABA */
> - {
> - static NeonGenTwoOpFn * const fns[3][2] = {
> - { gen_helper_neon_abd_s8, gen_helper_neon_abd_u8 },
> - { gen_helper_neon_abd_s16, gen_helper_neon_abd_u16 },
> - { gen_helper_neon_abd_s32, gen_helper_neon_abd_u32 },
> - };
> - genfn = fns[size][u];
> - break;
> - }
...and we did delete the "do the operation" code...
> case 0x16: /* SQDMULH, SQRDMULH */
> {
> static NeonGenTwoOpEnvFn * const fns[2][2] = {
...but we missed the handling of the accumulate part near the
bottom of the loop:
if (opcode == 0xf) {
/* SABA, UABA: accumulating ops */
static NeonGenTwoOpFn * const fns[3] = {
gen_helper_neon_add_u8,
gen_helper_neon_add_u16,
tcg_gen_add_i32,
};
read_vec_element_i32(s, tcg_op1, rd, pass, MO_32);
fns[size](tcg_res, tcg_op1, tcg_res);
}
That whole if() is now dead and can be deleted. Richard, do
you want to send a patch?
thanks
-- PMM
^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table
2020-05-21 13:03 ` Peter Maydell
@ 2020-05-21 15:31 ` Michael S. Tsirkin
2020-06-19 17:21 ` Peter Maydell
0 siblings, 1 reply; 52+ messages in thread
From: Michael S. Tsirkin @ 2020-05-21 15:31 UTC (permalink / raw)
To: Peter Maydell; +Cc: Igor Mammedov, QEMU Developers, Dongjiu Geng
On Thu, May 21, 2020 at 02:03:36PM +0100, Peter Maydell wrote:
> On Thu, 14 May 2020 at 15:22, Peter Maydell <peter.maydell@linaro.org> wrote:
> >
> > From: Dongjiu Geng <gengdongjiu@huawei.com>
> >
> > kvm_arch_on_sigbus_vcpu() error injection uses source_id as
> > index in etc/hardware_errors to find out Error Status Data
> > Block entry corresponding to error source. So supported source_id
> > values should be assigned here and not be changed afterwards to
> > make sure that guest will write error into expected Error Status
> > Data Block.
> >
> > Before QEMU writes a new error to ACPI table, it will check whether
> > previous error has been acknowledged. If not acknowledged, the new
> > errors will be ignored and not be recorded. For the errors section
> > type, QEMU simulate it to memory section error.
>
> Hi; Coverity points out (CID 1428962) that there is
> unreachable code in this function:
>
> > +static int acpi_ghes_record_mem_error(uint64_t error_block_address,
> > + uint64_t error_physical_addr)
> > +{
> > + GArray *block;
> > +
> > + /* Memory Error Section Type */
> > + const uint8_t uefi_cper_mem_sec[] =
> > + UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
> > + 0xED, 0x7C, 0x83, 0xB1);
> > +
> > + /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data,
> > + * Table 17-13 Generic Error Data Entry
> > + */
> > + QemuUUID fru_id = {};
> > + uint32_t data_length;
> > +
> > + block = g_array_new(false, true /* clear */, 1);
> > +
> > + /* This is the length if adding a new generic error data entry*/
> > + data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
>
> Here data_length has a constant value...
>
> > +
> > + /*
> > + * Check whether it will run out of the preallocated memory if adding a new
> > + * generic error data entry
> > + */
> > + if ((data_length + ACPI_GHES_GESB_SIZE) > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
>
> ...but here we immediately have a runtime check which can't possibly
> fail because of the values of the constants involved, so this
> if() block is dead code.
>
> > + error_report("Not enough memory to record new CPER!!!");
> > + g_array_free(block, true);
> > + return -1;
> > + }
>
> What was this code trying to do? Is the initial value of
> data_length incorrect, or is the if() condition wrong, or
> should this simply have been an assert() ?
>
> thanks
> -- PMM
It's just a validity check. assert will do just as well.
--
MST
^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table
2020-05-21 15:31 ` Michael S. Tsirkin
@ 2020-06-19 17:21 ` Peter Maydell
2020-06-20 1:50 ` Dongjiu Geng
0 siblings, 1 reply; 52+ messages in thread
From: Peter Maydell @ 2020-06-19 17:21 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: Igor Mammedov, QEMU Developers, Dongjiu Geng
On Thu, 21 May 2020 at 16:31, Michael S. Tsirkin <mst@redhat.com> wrote:
>
> On Thu, May 21, 2020 at 02:03:36PM +0100, Peter Maydell wrote:
> > On Thu, 14 May 2020 at 15:22, Peter Maydell <peter.maydell@linaro.org> wrote:
> > >
> > > From: Dongjiu Geng <gengdongjiu@huawei.com>
> > >
> > > kvm_arch_on_sigbus_vcpu() error injection uses source_id as
> > > index in etc/hardware_errors to find out Error Status Data
> > > Block entry corresponding to error source. So supported source_id
> > > values should be assigned here and not be changed afterwards to
> > > make sure that guest will write error into expected Error Status
> > > Data Block.
> > >
> > > Before QEMU writes a new error to ACPI table, it will check whether
> > > previous error has been acknowledged. If not acknowledged, the new
> > > errors will be ignored and not be recorded. For the errors section
> > > type, QEMU simulate it to memory section error.
> >
> > Hi; Coverity points out (CID 1428962) that there is
> > unreachable code in this function:
> >
> > > +static int acpi_ghes_record_mem_error(uint64_t error_block_address,
> > > + uint64_t error_physical_addr)
> > > +{
> > > + GArray *block;
> > > +
> > > + /* Memory Error Section Type */
> > > + const uint8_t uefi_cper_mem_sec[] =
> > > + UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
> > > + 0xED, 0x7C, 0x83, 0xB1);
> > > +
> > > + /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data,
> > > + * Table 17-13 Generic Error Data Entry
> > > + */
> > > + QemuUUID fru_id = {};
> > > + uint32_t data_length;
> > > +
> > > + block = g_array_new(false, true /* clear */, 1);
> > > +
> > > + /* This is the length if adding a new generic error data entry*/
> > > + data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
> >
> > Here data_length has a constant value...
> >
> > > +
> > > + /*
> > > + * Check whether it will run out of the preallocated memory if adding a new
> > > + * generic error data entry
> > > + */
> > > + if ((data_length + ACPI_GHES_GESB_SIZE) > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
> >
> > ...but here we immediately have a runtime check which can't possibly
> > fail because of the values of the constants involved, so this
> > if() block is dead code.
> >
> > > + error_report("Not enough memory to record new CPER!!!");
> > > + g_array_free(block, true);
> > > + return -1;
> > > + }
> >
> > What was this code trying to do? Is the initial value of
> > data_length incorrect, or is the if() condition wrong, or
> > should this simply have been an assert() ?
> It's just a validity check. assert will do just as well.
Would somebody like to write a patch to make it assert instead, then,
please? That should keep Coverity happy.
thanks
-- PMM
^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table
2020-06-19 17:21 ` Peter Maydell
@ 2020-06-20 1:50 ` Dongjiu Geng
0 siblings, 0 replies; 52+ messages in thread
From: Dongjiu Geng @ 2020-06-20 1:50 UTC (permalink / raw)
To: Peter Maydell, Michael S. Tsirkin; +Cc: Igor Mammedov, QEMU Developers
On 2020/6/20 1:21, Peter Maydell wrote:
> On Thu, 21 May 2020 at 16:31, Michael S. Tsirkin <mst@redhat.com> wrote:
>>
>> On Thu, May 21, 2020 at 02:03:36PM +0100, Peter Maydell wrote:
>>> On Thu, 14 May 2020 at 15:22, Peter Maydell <peter.maydell@linaro.org> wrote:
>>>>
>>>> From: Dongjiu Geng <gengdongjiu@huawei.com>
>>>>
>>>> kvm_arch_on_sigbus_vcpu() error injection uses source_id as
>>>> index in etc/hardware_errors to find out Error Status Data
>>>> Block entry corresponding to error source. So supported source_id
>>>> values should be assigned here and not be changed afterwards to
>>>> make sure that guest will write error into expected Error Status
>>>> Data Block.
>>>>
>>>> Before QEMU writes a new error to ACPI table, it will check whether
>>>> previous error has been acknowledged. If not acknowledged, the new
>>>> errors will be ignored and not be recorded. For the errors section
>>>> type, QEMU simulate it to memory section error.
>>>
>>> Hi; Coverity points out (CID 1428962) that there is
>>> unreachable code in this function:
>>>
>>>> +static int acpi_ghes_record_mem_error(uint64_t error_block_address,
>>>> + uint64_t error_physical_addr)
>>>> +{
>>>> + GArray *block;
>>>> +
>>>> + /* Memory Error Section Type */
>>>> + const uint8_t uefi_cper_mem_sec[] =
>>>> + UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
>>>> + 0xED, 0x7C, 0x83, 0xB1);
>>>> +
>>>> + /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data,
>>>> + * Table 17-13 Generic Error Data Entry
>>>> + */
>>>> + QemuUUID fru_id = {};
>>>> + uint32_t data_length;
>>>> +
>>>> + block = g_array_new(false, true /* clear */, 1);
>>>> +
>>>> + /* This is the length if adding a new generic error data entry*/
>>>> + data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH;
>>>
>>> Here data_length has a constant value...
>>>
>>>> +
>>>> + /*
>>>> + * Check whether it will run out of the preallocated memory if adding a new
>>>> + * generic error data entry
>>>> + */
>>>> + if ((data_length + ACPI_GHES_GESB_SIZE) > ACPI_GHES_MAX_RAW_DATA_LENGTH) {
>>>
>>> ...but here we immediately have a runtime check which can't possibly
>>> fail because of the values of the constants involved, so this
>>> if() block is dead code.
>>>
>>>> + error_report("Not enough memory to record new CPER!!!");
>>>> + g_array_free(block, true);
>>>> + return -1;
>>>> + }
>>>
>>> What was this code trying to do? Is the initial value of
>>> data_length incorrect, or is the if() condition wrong, or
>>> should this simply have been an assert() ?
>
>> It's just a validity check. assert will do just as well.
>
> Would somebody like to write a patch to make it assert instead, then,
> please? That should keep Coverity happy.
I will check the comments history and make a patch, thanks a lot.
>
> thanks
> -- PMM
>
> .
>
^ permalink raw reply [flat|nested] 52+ messages in thread
end of thread, other threads:[~2020-06-20 1:53 UTC | newest]
Thread overview: 52+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-14 14:20 [PULL 00/45] target-arm queue Peter Maydell
2020-05-14 14:20 ` [PULL 01/45] target/arm: Use correct GDB XML for M-profile cores Peter Maydell
2020-05-14 14:20 ` [PULL 02/45] target/arm: Create gen_gvec_[us]sra Peter Maydell
2020-05-14 14:20 ` [PULL 03/45] target/arm: Create gen_gvec_{u,s}{rshr,rsra} Peter Maydell
2020-05-14 14:20 ` [PULL 04/45] target/arm: Create gen_gvec_{sri,sli} Peter Maydell
2020-05-14 14:20 ` [PULL 05/45] target/arm: Remove unnecessary range check for VSHL Peter Maydell
2020-05-14 14:20 ` [PULL 06/45] target/arm: Tidy handle_vec_simd_shri Peter Maydell
2020-05-14 14:21 ` [PULL 07/45] target/arm: Create gen_gvec_{ceq,clt,cle,cgt,cge}0 Peter Maydell
2020-05-14 14:21 ` [PULL 08/45] target/arm: Create gen_gvec_{mla,mls} Peter Maydell
2020-05-14 14:21 ` [PULL 09/45] target/arm: Swap argument order for VSHL during decode Peter Maydell
2020-05-14 14:21 ` [PULL 10/45] target/arm: Create gen_gvec_{cmtst,ushl,sshl} Peter Maydell
2020-05-14 14:21 ` [PULL 11/45] target/arm: Create gen_gvec_{uqadd, sqadd, uqsub, sqsub} Peter Maydell
2020-05-14 14:21 ` [PULL 12/45] target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32 Peter Maydell
2020-05-14 14:21 ` [PULL 13/45] target/arm: Create gen_gvec_{qrdmla,qrdmls} Peter Maydell
2020-05-14 14:21 ` [PULL 14/45] target/arm: Pass pointer to qc to qrdmla/qrdmls Peter Maydell
2020-05-14 14:21 ` [PULL 15/45] target/arm: Clear tail in gvec_fmul_idx_*, gvec_fmla_idx_* Peter Maydell
2020-05-14 14:21 ` [PULL 16/45] target/arm: Vectorize SABD/UABD Peter Maydell
2020-05-14 14:21 ` [PULL 17/45] target/arm: Vectorize SABA/UABA Peter Maydell
2020-05-21 13:11 ` Peter Maydell
2020-05-14 14:21 ` [PULL 18/45] aspeed: Add support for the sonorapass-bmc board Peter Maydell
2020-05-14 14:21 ` [PULL 19/45] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro Peter Maydell
2020-05-14 14:21 ` [PULL 20/45] hw/arm/virt: Introduce a RAS machine option Peter Maydell
2020-05-14 14:21 ` [PULL 21/45] docs: APEI GHES generation and CPER record description Peter Maydell
2020-05-14 14:21 ` [PULL 22/45] ACPI: Build related register address fields via hardware error fw_cfg blob Peter Maydell
2020-05-14 14:21 ` [PULL 23/45] ACPI: Build Hardware Error Source Table Peter Maydell
2020-05-14 14:21 ` [PULL 24/45] ACPI: Record the Generic Error Status Block address Peter Maydell
2020-05-14 14:21 ` [PULL 25/45] KVM: Move hwpoison page related functions into kvm-all.c Peter Maydell
2020-05-14 14:21 ` [PULL 26/45] ACPI: Record Generic Error Status Block(GESB) table Peter Maydell
2020-05-21 13:03 ` Peter Maydell
2020-05-21 15:31 ` Michael S. Tsirkin
2020-06-19 17:21 ` Peter Maydell
2020-06-20 1:50 ` Dongjiu Geng
2020-05-14 14:21 ` [PULL 27/45] target-arm: kvm64: handle SIGBUS signal from kernel or KVM Peter Maydell
2020-05-14 14:21 ` [PULL 28/45] MAINTAINERS: Add ACPI/HEST/GHES entries Peter Maydell
2020-05-14 14:21 ` [PULL 29/45] target/arm: Convert Neon 3-reg-same VQRDMLAH/VQRDMLSH to decodetree Peter Maydell
2020-05-14 14:21 ` [PULL 30/45] target/arm: Convert Neon 3-reg-same SHA " Peter Maydell
2020-05-14 14:21 ` [PULL 31/45] target/arm: Convert Neon 64-bit element 3-reg-same insns Peter Maydell
2020-05-14 14:21 ` [PULL 32/45] target/arm: Convert Neon VHADD " Peter Maydell
2020-05-14 14:21 ` [PULL 33/45] target/arm: Convert Neon VABA/VABD 3-reg-same to decodetree Peter Maydell
2020-05-14 14:21 ` [PULL 34/45] target/arm: Convert Neon VRHADD, VHSUB 3-reg-same insns " Peter Maydell
2020-05-14 14:21 ` [PULL 35/45] target/arm: Convert Neon VQSHL, VRSHL, VQRSHL " Peter Maydell
2020-05-14 14:21 ` [PULL 36/45] target/arm: Convert Neon VPMAX/VPMIN " Peter Maydell
2020-05-14 14:21 ` [PULL 37/45] target/arm: Convert Neon VPADD " Peter Maydell
2020-05-14 14:21 ` [PULL 38/45] target/arm: Convert Neon VQDMULH/VQRDMULH 3-reg-same " Peter Maydell
2020-05-14 14:21 ` [PULL 39/45] target/arm: Convert Neon VADD, VSUB, VABD 3-reg-same insns " Peter Maydell
2020-05-14 14:21 ` [PULL 40/45] target/arm: Convert Neon VPMIN/VPMAX/VPADD float " Peter Maydell
2020-05-14 14:21 ` [PULL 41/45] target/arm: Convert Neon fp VMUL, VMLA, VMLS " Peter Maydell
2020-05-14 14:21 ` [PULL 42/45] target/arm: Convert Neon 3-reg-same compare " Peter Maydell
2020-05-14 14:21 ` [PULL 43/45] target/arm: Move 'env' argument of recps_f32 and rsqrts_f32 helpers to usual place Peter Maydell
2020-05-14 14:21 ` [PULL 44/45] target/arm: Convert Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS to decodetree Peter Maydell
2020-05-14 14:21 ` [PULL 45/45] target/arm: Convert NEON VFMA, VFMS 3-reg-same insns " Peter Maydell
2020-05-14 16:42 ` [PULL 00/45] target-arm queue Peter Maydell
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