From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org
Subject: [PATCH v8 00/22] target/arm: Reduce overhead of cpu_get_tb_cpu_state
Date: Fri, 18 Oct 2019 10:44:09 -0700 [thread overview]
Message-ID: <20191018174431.1784-1-richard.henderson@linaro.org> (raw)
Changes since v7:
* Rebuild hflags for all successful nvic writes (Peter).
* Rebuild hflags for Xscale sctlr writes (Peter).
Changes since v6:
* Regen hflags in two more places for m-profile (patch 19).
Changes since v5:
* Fix the debug assertion ifdef in the final patch.
* Add more calls to arm_rebuild_hflags: CPSR and M-profile
These become two new patches, 18 & 19.
* Update some comments per review. (Alex)
Changes since v4:
* Split patch 1 into 15 smaller patches.
* Cache the new DEBUG_TARGET_EL field.
* Split out m-profile hflags separately from a-profile 32-bit.
* Move around non-cached tb flags as well, avoiding repetitive
checks for m-profile or other mutually exclusive conditions.
I haven't officially re-run the performance test quoted in the
last patch, but I have eyeballed "perf top", and have dug into
the compiled code a bit, which resulted in a few of the new
cleanup patches (e.g. cs_base, arm_mmu_idx_el, and
arm_cpu_data_is_big_endian).
...
r~
Richard Henderson (22):
target/arm: Split out rebuild_hflags_common
target/arm: Split out rebuild_hflags_a64
target/arm: Split out rebuild_hflags_common_32
target/arm: Split arm_cpu_data_is_big_endian
target/arm: Split out rebuild_hflags_m32
target/arm: Reduce tests vs M-profile in cpu_get_tb_cpu_state
target/arm: Split out rebuild_hflags_a32
target/arm: Split out rebuild_hflags_aprofile
target/arm: Hoist XSCALE_CPAR, VECLEN, VECSTRIDE in
cpu_get_tb_cpu_state
target/arm: Simplify set of PSTATE_SS in cpu_get_tb_cpu_state
target/arm: Hoist computation of TBFLAG_A32.VFPEN
target/arm: Add arm_rebuild_hflags
target/arm: Split out arm_mmu_idx_el
target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state
target/arm: Add HELPER(rebuild_hflags_{a32,a64,m32})
target/arm: Rebuild hflags at EL changes
target/arm: Rebuild hflags at MSR writes
target/arm: Rebuild hflags at CPSR writes
target/arm: Rebuild hflags at Xscale SCTLR writes
target/arm: Rebuild hflags for M-profile
target/arm: Rebuild hflags for M-profile NVIC
target/arm: Rely on hflags correct in cpu_get_tb_cpu_state
target/arm/cpu.h | 84 +++++---
target/arm/helper.h | 4 +
target/arm/internals.h | 9 +
hw/intc/armv7m_nvic.c | 22 ++-
linux-user/syscall.c | 1 +
target/arm/cpu.c | 1 +
target/arm/helper-a64.c | 3 +
target/arm/helper.c | 393 ++++++++++++++++++++++++-------------
target/arm/m_helper.c | 6 +
target/arm/machine.c | 1 +
target/arm/op_helper.c | 4 +
target/arm/translate-a64.c | 13 +-
target/arm/translate.c | 33 +++-
13 files changed, 390 insertions(+), 184 deletions(-)
--
2.17.1
next reply other threads:[~2019-10-18 17:47 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-18 17:44 Richard Henderson [this message]
2019-10-18 17:44 ` [PATCH v8 01/22] target/arm: Split out rebuild_hflags_common Richard Henderson
2019-10-18 17:44 ` [PATCH v8 02/22] target/arm: Split out rebuild_hflags_a64 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 03/22] target/arm: Split out rebuild_hflags_common_32 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 04/22] target/arm: Split arm_cpu_data_is_big_endian Richard Henderson
2019-10-18 17:44 ` [PATCH v8 05/22] target/arm: Split out rebuild_hflags_m32 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 06/22] target/arm: Reduce tests vs M-profile in cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 07/22] target/arm: Split out rebuild_hflags_a32 Richard Henderson
2019-10-18 17:44 ` [PATCH v8 08/22] target/arm: Split out rebuild_hflags_aprofile Richard Henderson
2019-10-18 17:44 ` [PATCH v8 09/22] target/arm: Hoist XSCALE_CPAR, VECLEN, VECSTRIDE in cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 10/22] target/arm: Simplify set of PSTATE_SS " Richard Henderson
2019-10-18 17:44 ` [PATCH v8 11/22] target/arm: Hoist computation of TBFLAG_A32.VFPEN Richard Henderson
2019-10-18 17:44 ` [PATCH v8 12/22] target/arm: Add arm_rebuild_hflags Richard Henderson
2019-10-18 17:44 ` [PATCH v8 13/22] target/arm: Split out arm_mmu_idx_el Richard Henderson
2019-10-18 17:44 ` [PATCH v8 14/22] target/arm: Hoist store to cs_base in cpu_get_tb_cpu_state Richard Henderson
2019-10-18 17:44 ` [PATCH v8 15/22] target/arm: Add HELPER(rebuild_hflags_{a32, a64, m32}) Richard Henderson
2019-10-18 17:44 ` [PATCH v8 16/22] target/arm: Rebuild hflags at EL changes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 17/22] target/arm: Rebuild hflags at MSR writes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 18/22] target/arm: Rebuild hflags at CPSR writes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 19/22] target/arm: Rebuild hflags at Xscale SCTLR writes Richard Henderson
2019-10-18 17:44 ` [PATCH v8 20/22] target/arm: Rebuild hflags for M-profile Richard Henderson
2019-10-18 17:44 ` [PATCH v8 21/22] target/arm: Rebuild hflags for M-profile NVIC Richard Henderson
2019-10-18 17:44 ` [PATCH v8 22/22] target/arm: Rely on hflags correct in cpu_get_tb_cpu_state Richard Henderson
2019-10-22 12:47 ` [PATCH v8 00/22] target/arm: Reduce overhead of cpu_get_tb_cpu_state Peter Maydell
2019-10-22 15:38 ` Peter Maydell
2019-10-23 14:49 ` Richard Henderson
2019-10-23 15:17 ` Alex Bennée
2019-10-23 16:13 ` Richard Henderson
2019-10-23 18:06 ` Alex Bennée
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