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This patch adds support for the Intel(R) Advanced Vector Extensions 512 (Intel(R) AVX-512) registers. Native and remote debugging are covered by this patch. Intel(R) AVX-512 is an extension to AVX to support 512-bit wide SIMD registers in 64-bit mode (XMM0-XMM31, YMM0-YMM31, ZMM0-ZMM31). The number of available registers in 32-bit mode is still 8 (XMM0-7, YMM0-7, ZMM0-7). The lower 256-bits of the ZMM registers are aliased to the respective 256-bit YMM registers. The lower 128-bits are aliased to the respective 128-bit XMM registers. There are also 8 new, dedicated mask registers (K0-K7) in both 32-bit mode and 64-bit mode. For more information please see Intel(R) Developer Zone: Intel(R) AVX http://software.intel.com/en-us/intel-isa-extensions#pid-16007-1495 Intel(R) Architecture Instruction Set Extensions Programming Reference: http://software.intel.com/en-us/file/319433-017pdf 2014-04-24 Michael Sturm <michael.sturm@mintel.com> Walfred Tedeschi <walfred.tedeschi@intel.com> * amd64-linux-nat.c (amd64_linux_gregset32_reg_offset): Add AVX512 registers. (amd64_linux_read_description): Add code to handle AVX512 xstate mask and return respective tdesc. * amd64-linux-tdep.c: Include features/i386/amd64-avx512-linux.c and features/i386/x32-avx512-linux.c. (amd64_linux_gregset_reg_offset): Add AVX512 registers. (amd64_linux_core_read_description): Add code to handle AVX512 xstate mask and return respective tdesc. (_initialize_amd64_linux_tdep): Initialize AVX512 tdesc. * amd64-linux-tdep.h (AMD64_LINUX_ORIG_RAX_REGNUM): Adjust regnum calculation. (AMD64_LINUX_NUM_REGS): Adjust to new number of registers. (tdesc_amd64_avx512_linux): New prototype. (tdesc_x32_avx512_linux): Likewise. * amd64-tdep.c: Include features/i386/amd64-avx512.c and features/i386/x32-avx512.c. (amd64_ymm_avx512_names): New register names for pseudo registers YMM16-31. (amd64_ymmh_avx512_names): New register names for raw registers YMMH16-31. (amd64_k_names): New register names for K registers. (amd64_zmmh_names): New register names for ZMM raw registers. (amd64_zmm_names): New registers names for ZMM pseudo registers. (amd64_xmm_avx512_names): New register names for XMM16-31 registers. (amd64_pseudo_register_name): Add code to return AVX512 pseudo registers. (amd64_init_abi): Add code to intitialize AVX512 tdep variables if feature is present. (_initialize_amd64_tdep): Call AVX512 tdesc initializers. * amd64-tdep.h (enum amd64_regnum): Add AVX512 registers. (AMD64_NUM_REGS): Adjust to new number of registers. * i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Extend range of registers supplied via XSTATE by AVX512 registers. (i386_linux_read_description): Add case for AVX512. * i386-linux-tdep.c: Include i386-avx512-linux.c. (i386_linux_gregset_reg_offset): Add AVX512 registers. (i386_linux_core_read_description): Add case for AVX512. (i386_linux_init_abi): Install supported register note section for AVX512. (_initialize_i386_linux_tdep): Add call to tdesc init function for AVX512. * i386-linux-tdep.h (I386_LINUX_NUM_REGS): Set number of registers to be number of zmm7h + 1. (tdesc_i386_avx512_linux): Add tdesc for AVX512 registers. * i386-tdep.c: Include features/i386/i386-avx512.c. (i386_zmm_names): Add ZMM pseudo register names array. (i386_zmmh_names): Add ZMM raw register names array. (i386_k_names): Add K raw register names array. (num_lower_zmm_regs): Add constant for the number of lower ZMM registers. AVX512 has 16 more ZMM registers than there are YMM registers. (i386_zmmh_regnum_p): Add function to look up register number of ZMM raw registers. (i386_zmm_regnum_p): Likewise for ZMM pseudo registers. (i386_k_regnum_p): Likewise for K raw registers. (i386_ymmh_avx512_regnum_p): Likewise for additional YMM raw registers added by AVX512. (i386_ymm_avx512_regnum_p): Likewise for additional YMM pseudo registers added by AVX512. (i386_xmm_avx512_regnum_p): Likewise for additional XMM registers added by AVX512. (i386_register_name): Add code to hide YMMH16-31 and ZMMH0-31. (i386_pseudo_register_name): Add ZMM pseudo registers. (i386_zmm_type): Construct and return vector registers type for ZMM registers. (i386_pseudo_register_type): Return appropriate type for YMM16-31, ZMM0-31 pseudo registers and K registers. (i386_pseudo_register_read_into_value): Add code to read K, ZMM and YMM16-31 registers from register cache. (i386_pseudo_register_write): Add code to write K, ZMM and YMM16-31 registers. (i386_register_reggroup_p): Add code to include/exclude AVX512 registers in/from respective register groups. (i386_validate_tdesc_p): Handle AVX512 feature, add AVX512 registers if feature is present in xcr0. (i386_gdbarch_init): Add code to initialize AVX512 feature variables in tdep structure, wire in pseudo registers and call initialize_tdesc_i386_avx512. * i386-tdep.h (struct gdbarch_tdep): Add AVX512 related variables. (i386_regnum): Add AVX512 registers. (I386_SSE_NUM_REGS): New define for number of SSE registers. (I386_AVX_NUM_REGS): Likewise for AVX registers. (I386_AVX512_NUM_REGS): Likewise for AVX512 registers. (I386_MAX_REGISTER_SIZE): Change to 64 bytes, ZMM registers are 512 bits wide. (i386_xmm_avx512_regnum_p): New prototype for register look up. (i386_ymm_avx512_regnum_p): Likewise. (i386_k_regnum_p): Likewise. (i386_zmm_regnum_p): Likewise. (i386_zmmh_regnum_p): Likewise. * i387-tdep.c : Update year in copyright notice. (xsave_ymm_avx512_offset): New table for YMM16-31 offsets in XSAVE buffer. (XSAVE_YMM_AVX512_ADDR): New macro. (xsave_xmm_avx512_offset): New table for XMM16-31 offsets in XSAVE buffer. (XSAVE_XMM_AVX512_ADDR): New macro. (xsave_avx512_k_offset): New table for K register offsets in XSAVE buffer. (XSAVE_AVX512_K_ADDR): New macro. (xsave_avx512_zmm_h_offset): New table for ZMM register offsets in XSAVE buffer. (XSAVE_AVX512_ZMM_H_ADDR): New macro. (i387_supply_xsave): Add code to supply AVX512 registers to XSAVE buffer. (i387_collect_xsave): Add code to collect AVX512 registers from XSAVE buffer. * i387-tdep.h (I387_NUM_XMM_AVX512_REGS): New define for number of XMM16-31 registers. (I387_NUM_K_REGS): New define for number of K registers. (I387_K0_REGNUM): New define for K0 register number. (I387_NUM_ZMMH_REGS): New define for number of ZMMH registers. (I387_ZMM0H_REGNUM): New define for ZMM0H register number. (I387_NUM_YMM_AVX512_REGS): New define for number of YMM16-31 registers. (I387_YMM16H_REGNUM): New define for YMM16H register number. (I387_XMM16_REGNUM): New define for XMM16 register number. (I387_YMM0_REGNUM): New define for YMM0 register number. (I387_KEND_REGNUM): New define for last K register number. (I387_ZMMENDH_REGNUM): New define for last ZMMH register number. (I387_YMMH_AVX512_END_REGNUM): New define for YMM31 register number. (I387_XMM_AVX512_END_REGNUM): New define for XMM31 register number. * common/i386-xstate.h: Add AVX 3.1 feature bits, mask and XSTATE size. * features/Makefile: Add AVX512 related files. * features/i386/32bit-avx512.xml: New file. * features/i386/64bit-avx512.xml: Likewise. * features/i386/amd64-avx512-linux.c: Likewise. * features/i386/amd64-avx512-linux.xml: Likewise. * features/i386/amd64-avx512.c: Likewise. * features/i386/amd64-avx512.xml: Likewise. * features/i386/i386-avx512-linux.c: Likewise. * features/i386/i386-avx512-linux.xml: Likewise. * features/i386/i386-avx512.c: Likewise. * features/i386/i386-avx512.xml: Likewise. * features/i386/x32-avx512-linux.c: Likewise. * features/i386/x32-avx512-linux.xml: Likewise. * features/i386/x32-avx512.c: Likewise. * features/i386/x32-avx512.xml: Likewise. * regformats/i386/amd64-avx512-linux.dat: New file. * regformats/i386/amd64-avx512.dat: Likewise. * regformats/i386/i386-avx512-linux.dat: Likewise. * regformats/i386/i386-avx512.dat: Likewise. * regformats/i386/x32-avx512-linux.dat: Likewise. * regformats/i386/x32-avx512.dat: Likewise. * NEWS: Add note about new support for AVX512. testsuite/ * Makefile.in (EXECUTABLES): Added i386-avx512. * gdb.arch/i386-avx512.c: New file. * gdb.arch/i386-avx512.exp: Likewise. gdbserver/ * Makefile.in: Added rules to handle new files i386-avx512.c i386-avx512-linux.c amd64-avx512.c amd64-avx512-linux.c x32-avx512.c x32-avx512-linux.c. * configure.srv (srv_i386_regobj): Add i386-avx512.o. (srv_i386_linux_regobj): Add i386-avx512-linux.o. (srv_amd64_regobj): Add amd64-avx512.o and x32-avx512.o. (srv_amd64_linux_regobj): Add amd64-avx512-linux.o and x32-avx512-linux.o. (srv_i386_32bit_xmlfiles): Add i386/32bit-avx512.xml. (srv_i386_64bit_xmlfiles): Add i386/64bit-avx512.xml. (srv_amd64_xmlfiles): Add i386/amd64-avx512.xml and i386/x32-avx512.xml. (srv_i386_linux_xmlfiles): Add i386/i386-avx512-linux.xml. (srv_amd64_linux_xmlfiles): Add i386/amd64-avx512-linux.xml and i386/x32-avx512-linux.xml. * i387-fp.c (num_avx512_k_registers): New constant for number of K registers. (num_avx512_zmmh_low_registers): New constant for number of lower ZMM registers (0-15). (num_avx512_zmmh_high_registers): New constant for number of higher ZMM registers (16-31). (num_avx512_ymmh_registers): New contant for number of higher YMM registers (ymm16-31 added by avx521 on x86_64). (num_avx512_xmm_registers): New constant for number of higher XMM registers (xmm16-31 added by AVX512 on x86_64). (struct i387_xsave): Add space for AVX512 registers. (i387_cache_to_xsave): Change raw buffer size to 64 characters. Add code to handle AVX512 registers. (i387_xsave_to_cache): Add code to handle AVX512 registers. * linux-x86-low.c (init_registers_amd64_avx512_linux): New prototypei from generated file. (tdesc_amd64_avx512_linux): Likewise. (init_registers_x32_avx512_linux): Likewise. (tdesc_x32_avx512_linux): Likewise. (init_registers_i386_avx512_linux): Likewise. (tdesc_i386_avx512_linux): Likewise. (x86_64_regmap): Add AVX512 registers. (x86_linux_read_description): Add code to handle AVX512 XSTATE mask. (initialize_low_arch): Add code to initialize AVX512 registers. doc/ * gdb.texinfo (i386 Features): Add description of AVX512 registers. Change-Id: Ifc4c08c76b85dbec18d02efdbe6182e851584438 Signed-off-by: Michael Sturm <michael.sturm@intel.com>
67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/* Common code for i386 XSAVE extended state.
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Copyright (C) 2010-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef I386_XSTATE_H
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#define I386_XSTATE_H 1
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/* The extended state feature bits. */
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#define I386_XSTATE_X87 (1ULL << 0)
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#define I386_XSTATE_SSE (1ULL << 1)
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#define I386_XSTATE_AVX (1ULL << 2)
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#define I386_XSTATE_BNDREGS (1ULL << 3)
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#define I386_XSTATE_BNDCFG (1ULL << 4)
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#define I386_XSTATE_MPX (I386_XSTATE_BNDREGS | I386_XSTATE_BNDCFG)
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/* AVX 512 adds three feature bits. All three must be enabled. */
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#define I386_XSTATE_K (1ULL << 5)
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#define I386_XSTATE_ZMM_H (1ULL << 6)
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#define I386_XSTATE_ZMM (1ULL << 7)
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#define I386_XSTATE_AVX512 (I386_XSTATE_K | I386_XSTATE_ZMM_H \
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| I386_XSTATE_ZMM)
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/* Supported mask and size of the extended state. */
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#define I386_XSTATE_X87_MASK I386_XSTATE_X87
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#define I386_XSTATE_SSE_MASK (I386_XSTATE_X87 | I386_XSTATE_SSE)
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#define I386_XSTATE_AVX_MASK (I386_XSTATE_SSE_MASK | I386_XSTATE_AVX)
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#define I386_XSTATE_MPX_MASK (I386_XSTATE_AVX_MASK | I386_XSTATE_MPX)
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#define I386_XSTATE_AVX512_MASK (I386_XSTATE_AVX_MASK | I386_XSTATE_AVX512)
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#define I386_XSTATE_MPX_AVX512_MASK (I386_XSTATE_MPX_MASK | I386_XSTATE_AVX512)
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#define I386_XSTATE_ALL_MASK (I386_XSTATE_MPX_AVX512_MASK)
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#define I386_XSTATE_SSE_SIZE 576
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#define I386_XSTATE_AVX_SIZE 832
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#define I386_XSTATE_BNDREGS_SIZE 1024
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#define I386_XSTATE_BNDCFG_SIZE 1088
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#define I386_XSTATE_AVX512_SIZE 2688
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#define I386_XSTATE_MAX_SIZE 2688
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/* In case one of the MPX XCR0 bits is set we consider we have MPX. */
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#define HAS_MPX(XCR0) (((XCR0) & I386_XSTATE_MPX) != 0)
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#define HAS_AVX(XCR0) (((XCR0) & I386_XSTATE_AVX) != 0)
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#define HAS_AVX512(XCR0) (((XCR0) & I386_XSTATE_AVX512) != 0)
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/* Get I386 XSAVE extended state size. */
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#define I386_XSTATE_SIZE(XCR0) \
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(HAS_AVX512 (XCR0) ? I386_XSTATE_AVX512_SIZE : \
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(HAS_MPX (XCR0) ? I386_XSTATE_BNDCFG_SIZE : \
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(HAS_AVX (XCR0) ? I386_XSTATE_AVX_SIZE : I386_XSTATE_SSE_SIZE)))
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#endif /* I386_XSTATE_H */
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