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[Qemu-devel] [PULL 07/79] cacheinfo: add i/d cache_linesize_log
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 07/79] cacheinfo: add i/d cache_linesize_log |
Date: |
Sun, 30 Sep 2018 10:12:05 +0200 |
From: "Emilio G. Cota" <address@hidden>
Signed-off-by: Emilio G. Cota <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
include/qemu/osdep.h | 2 ++
util/cacheinfo.c | 8 ++++++++
2 files changed, 10 insertions(+)
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index a91068d..a746a5e 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -570,6 +570,8 @@ extern uintptr_t qemu_real_host_page_size;
extern intptr_t qemu_real_host_page_mask;
extern int qemu_icache_linesize;
+extern int qemu_icache_linesize_log;
extern int qemu_dcache_linesize;
+extern int qemu_dcache_linesize_log;
#endif
diff --git a/util/cacheinfo.c b/util/cacheinfo.c
index db5172d..6c8fe79 100644
--- a/util/cacheinfo.c
+++ b/util/cacheinfo.c
@@ -7,9 +7,12 @@
*/
#include "qemu/osdep.h"
+#include "qemu/host-utils.h"
int qemu_icache_linesize = 0;
+int qemu_icache_linesize_log;
int qemu_dcache_linesize = 0;
+int qemu_dcache_linesize_log;
/*
* Operating system specific detection mechanisms.
@@ -172,6 +175,11 @@ static void __attribute__((constructor))
init_cache_info(void)
arch_cache_info(&isize, &dsize);
fallback_cache_info(&isize, &dsize);
+ assert((isize & (isize - 1)) == 0);
+ assert((dsize & (dsize - 1)) == 0);
+
qemu_icache_linesize = isize;
+ qemu_icache_linesize_log = ctz32(isize);
qemu_dcache_linesize = dsize;
+ qemu_dcache_linesize_log = ctz32(dsize);
}
--
1.8.3.1
- [Qemu-devel] [PULL 00/79] Misc QEMU patches for 2018-09-30, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 03/79] es1370: fix ADC_FRAMEADR and ADC_FRAMECNT, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 02/79] qsp: hide indirect function calls from Coverity, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 04/79] ps2: prevent changing irq state on save and load, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 06/79] cpus: initialize timers_state.vm_clock_lock, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 08/79] util: add atomic64, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 07/79] cacheinfo: add i/d cache_linesize_log,
Paolo Bonzini <=
- [Qemu-devel] [PULL 05/79] atomic: fix comment s/x64_64/x86_64/, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 01/79] virtio: Return true from virtio_queue_empty if broken, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 09/79] tests: add atomic64-bench, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 16/79] hostmem-memfd: add checks before adding hostmem-memfd & properties, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 13/79] cpus: access .qemu_icount with atomic64, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 12/79] cpus: take seqlock across qemu_icount updates, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 14/79] cpus: access .qemu_icount_bias with atomic64, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 17/79] kvm: x86: Fix kvm_arch_fixup_msi_route for remap-less case, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 22/79] serial: fix DLL writes, Paolo Bonzini, 2018/09/30
- [Qemu-devel] [PULL 10/79] qsp: use atomic64 accessors, Paolo Bonzini, 2018/09/30