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[RFC,PATCH-for-10.1,v2,0/7] tcg: Move TCG_GUEST_DEFAULT_MO -> TCGCPUOps::guest_default_memory_order

Message ID 20250321181549.3331-1-philmd@linaro.org
Headers show
Series tcg: Move TCG_GUEST_DEFAULT_MO -> TCGCPUOps::guest_default_memory_order | expand

Message

Philippe Mathieu-Daudé March 21, 2025, 6:15 p.m. UTC 
Since v1:
- Do not use tcg_ctx in tcg_req_mo (rth)

Hi,

In this series we replace the TCG_GUEST_DEFAULT_MO definition
from "cpu-param.h" by a 'guest_default_memory_order' field in
TCGCPUOps.

Since tcg_req_mo() now accesses tcg_ctx, this impact the
cpu_req_mo() calls in accel/tcg/{cputlb,user-exec}.c.

The long term goal is to be able to use targets with distinct
guest memory order restrictions.

Philippe Mathieu-Daudé (7):
  tcg: Always define TCG_GUEST_DEFAULT_MO
  tcg: Simplify tcg_req_mo() macro
  tcg: Define guest_default_memory_order in TCGCPUOps
  tcg: Remove use of TCG_GUEST_DEFAULT_MO in tb_gen_code()
  tcg: Propagate CPUState argument to cpu_req_mo()
  tcg: Have tcg_req_mo() use TCGCPUOps::guest_default_memory_order
  tcg: Remove the TCG_GUEST_DEFAULT_MO definition globally

 docs/devel/multi-thread-tcg.rst |  4 ++--
 accel/tcg/internal-target.h     | 19 ++++++-------------
 include/accel/tcg/cpu-ops.h     |  8 ++++++++
 target/alpha/cpu-param.h        |  3 ---
 target/arm/cpu-param.h          |  3 ---
 target/avr/cpu-param.h          |  2 --
 target/hppa/cpu-param.h         |  8 --------
 target/i386/cpu-param.h         |  3 ---
 target/loongarch/cpu-param.h    |  2 --
 target/microblaze/cpu-param.h   |  3 ---
 target/mips/cpu-param.h         |  2 --
 target/openrisc/cpu-param.h     |  2 --
 target/ppc/cpu-param.h          |  2 --
 target/riscv/cpu-param.h        |  2 --
 target/s390x/cpu-param.h        |  6 ------
 target/sparc/cpu-param.h        | 23 -----------------------
 target/xtensa/cpu-param.h       |  3 ---
 accel/tcg/cputlb.c              | 20 ++++++++++----------
 accel/tcg/tcg-all.c             |  3 ---
 accel/tcg/translate-all.c       |  6 +-----
 accel/tcg/user-exec.c           | 20 ++++++++++----------
 target/alpha/cpu.c              |  3 +++
 target/arm/cpu.c                |  3 +++
 target/arm/tcg/cpu-v7m.c        |  3 +++
 target/avr/cpu.c                |  1 +
 target/hexagon/cpu.c            |  2 ++
 target/hppa/cpu.c               |  8 ++++++++
 target/i386/tcg/tcg-cpu.c       |  5 +++++
 target/loongarch/cpu.c          |  2 ++
 target/m68k/cpu.c               |  3 +++
 target/microblaze/cpu.c         |  3 +++
 target/mips/cpu.c               |  2 ++
 target/openrisc/cpu.c           |  2 ++
 target/ppc/cpu_init.c           |  2 ++
 target/riscv/tcg/tcg-cpu.c      |  2 ++
 target/rx/cpu.c                 |  3 +++
 target/s390x/cpu.c              |  6 ++++++
 target/sh4/cpu.c                |  3 +++
 target/sparc/cpu.c              | 23 +++++++++++++++++++++++
 target/tricore/cpu.c            |  2 ++
 target/xtensa/cpu.c             |  3 +++
 41 files changed, 118 insertions(+), 107 deletions(-)