From: Jordan Niethe <jniethe5@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: alistair@popple.id.au, mpe@ellerman.id.a,
Jordan Niethe <jniethe5@gmail.com>,
dja@axtens.net, bala24@linux.ibm.com
Subject: [PATCH v2 00/13] Initial Prefixed Instruction support
Date: Tue, 11 Feb 2020 16:33:42 +1100 [thread overview]
Message-ID: <20200211053355.21574-1-jniethe5@gmail.com> (raw)
A future revision of the ISA will introduce prefixed instructions. A
prefixed instruction is composed of a 4-byte prefix followed by a
4-byte suffix.
All prefixes have the major opcode 1. A prefix will never be a valid
word instruction. A suffix may be an existing word instruction or a
new instruction.
This series enables prefixed instructions and extends the instruction
emulation to support them. Then the places where prefixed instructions
might need to be emulated are updated.
This v2 incorporates feedback from Daniel Axtens and and Balamuruhan
S. The major changes are:
- Squashing together all commits about SRR1 bits
- Squashing all commits for supporting prefixed load stores
- Changing abbreviated references to sufx/prfx -> suffix/prefix
- Introducing macros for returning the length of an instruction
- Removing sign extension flag from pstd/pld in sstep.c
- Dropping patch "powerpc/fault: Use analyse_instr() to check for
store with updates to sp" from the series, it did not really fit
with prefixed enablement in the first place and as reported by Greg
Kurz did not work correctly.
Alistair Popple (1):
powerpc: Enable Prefixed Instructions
Jordan Niethe (12):
powerpc: Define new SRR1 bits for a future ISA version
powerpc sstep: Prepare to support prefixed instructions
powerpc sstep: Add support for prefixed load/stores
powerpc sstep: Add support for prefixed fixed-point arithmetic
powerpc: Support prefixed instructions in alignment handler
powerpc/traps: Check for prefixed instructions in
facility_unavailable_exception()
powerpc/xmon: Add initial support for prefixed instructions
powerpc/xmon: Dump prefixed instructions
powerpc/kprobes: Support kprobes on prefixed instructions
powerpc/uprobes: Add support for prefixed instructions
powerpc/hw_breakpoints: Initial support for prefixed instructions
powerpc: Add prefix support to mce_find_instr_ea_and_pfn()
arch/powerpc/include/asm/kprobes.h | 5 +-
arch/powerpc/include/asm/ppc-opcode.h | 5 +
arch/powerpc/include/asm/reg.h | 7 +-
arch/powerpc/include/asm/sstep.h | 9 +-
arch/powerpc/include/asm/uaccess.h | 30 +++++
arch/powerpc/include/asm/uprobes.h | 16 ++-
arch/powerpc/kernel/align.c | 8 +-
arch/powerpc/kernel/dt_cpu_ftrs.c | 23 ++++
arch/powerpc/kernel/hw_breakpoint.c | 8 +-
arch/powerpc/kernel/kprobes.c | 47 +++++--
arch/powerpc/kernel/mce_power.c | 6 +-
arch/powerpc/kernel/optprobes.c | 31 +++--
arch/powerpc/kernel/optprobes_head.S | 6 +
arch/powerpc/kernel/traps.c | 22 +++-
arch/powerpc/kernel/uprobes.c | 4 +-
arch/powerpc/kvm/book3s_hv_nested.c | 2 +-
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +-
arch/powerpc/kvm/emulate_loadstore.c | 2 +-
arch/powerpc/lib/sstep.c | 181 +++++++++++++++++++++++++-
arch/powerpc/lib/test_emulate_step.c | 30 ++---
arch/powerpc/xmon/xmon.c | 133 +++++++++++++++----
21 files changed, 487 insertions(+), 90 deletions(-)
--
2.17.1
next reply other threads:[~2020-02-11 5:37 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 5:33 Jordan Niethe [this message]
2020-02-11 5:33 ` [PATCH v2 01/13] powerpc: Enable Prefixed Instructions Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 02/13] powerpc: Define new SRR1 bits for a future ISA version Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 03/13] powerpc sstep: Prepare to support prefixed instructions Jordan Niethe
2020-02-11 5:57 ` Christophe Leroy
2020-02-11 23:31 ` Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 04/13] powerpc sstep: Add support for prefixed load/stores Jordan Niethe
2020-02-11 6:05 ` Christophe Leroy
2020-02-12 2:59 ` Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 05/13] powerpc sstep: Add support for prefixed fixed-point arithmetic Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 06/13] powerpc: Support prefixed instructions in alignment handler Jordan Niethe
2020-02-11 6:14 ` Christophe Leroy
2020-02-12 2:55 ` Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 07/13] powerpc/traps: Check for prefixed instructions in facility_unavailable_exception() Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 08/13] powerpc/xmon: Add initial support for prefixed instructions Jordan Niethe
2020-02-11 6:32 ` Christophe Leroy
2020-02-12 0:28 ` Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 09/13] powerpc/xmon: Dump " Jordan Niethe
2020-02-11 6:39 ` Christophe Leroy
2020-02-12 0:31 ` Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 10/13] powerpc/kprobes: Support kprobes on " Jordan Niethe
2020-02-11 6:46 ` Christophe Leroy
2020-02-12 0:32 ` Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 11/13] powerpc/uprobes: Add support for " Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 12/13] powerpc/hw_breakpoints: Initial " Jordan Niethe
2020-02-11 5:33 ` [PATCH v2 13/13] powerpc: Add prefix support to mce_find_instr_ea_and_pfn() Jordan Niethe
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