From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Jagannathan Raman" <jag.raman@oracle.com>,
qemu-ppc@nongnu.org, "Ilya Leoshkevich" <iii@linux.ibm.com>,
"Thomas Huth" <thuth@redhat.com>,
"Jason Herne" <jjherne@linux.ibm.com>,
"Peter Xu" <peterx@redhat.com>,
"Cédric Le Goater" <clg@redhat.com>,
kvm@vger.kernel.org,
"Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Halil Pasic" <pasic@linux.ibm.com>,
"Matthew Rosato" <mjrosato@linux.ibm.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Elena Ufimtseva" <elena.ufimtseva@oracle.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Harsh Prateek Bora" <harshpb@linux.ibm.com>,
"Fabiano Rosas" <farosas@suse.de>,
"Eric Farman" <farman@linux.ibm.com>,
qemu-arm@nongnu.org, qemu-s390x@nongnu.org,
"David Hildenbrand" <david@redhat.com>,
"Alex Williamson" <alex.williamson@redhat.com>,
"Nicholas Piggin" <npiggin@gmail.com>
Subject: [PATCH v2 07/18] system/physmem: Un-inline cpu_physical_memory_get_dirty_flag()
Date: Wed, 1 Oct 2025 19:54:36 +0200 [thread overview]
Message-ID: <20251001175448.18933-8-philmd@linaro.org> (raw)
In-Reply-To: <20251001175448.18933-1-philmd@linaro.org>
Avoid maintaining large functions in header, rely on the
linker to optimize at linking time.
cpu_physical_memory_get_dirty() doesn't involve any CPU,
remove the 'cpu_' prefix.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
include/system/ram_addr.h | 46 +--------------------------------------
system/physmem.c | 44 +++++++++++++++++++++++++++++++++++++
2 files changed, 45 insertions(+), 45 deletions(-)
diff --git a/include/system/ram_addr.h b/include/system/ram_addr.h
index f74a0ecee56..f8a307d1a3d 100644
--- a/include/system/ram_addr.h
+++ b/include/system/ram_addr.h
@@ -142,46 +142,6 @@ static inline void qemu_ram_block_writeback(RAMBlock *block)
#define DIRTY_CLIENTS_ALL ((1 << DIRTY_MEMORY_NUM) - 1)
#define DIRTY_CLIENTS_NOCODE (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
-static inline bool cpu_physical_memory_get_dirty(ram_addr_t start,
- ram_addr_t length,
- unsigned client)
-{
- DirtyMemoryBlocks *blocks;
- unsigned long end, page;
- unsigned long idx, offset, base;
- bool dirty = false;
-
- assert(client < DIRTY_MEMORY_NUM);
-
- end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS;
- page = start >> TARGET_PAGE_BITS;
-
- WITH_RCU_READ_LOCK_GUARD() {
- blocks = qatomic_rcu_read(&ram_list.dirty_memory[client]);
-
- idx = page / DIRTY_MEMORY_BLOCK_SIZE;
- offset = page % DIRTY_MEMORY_BLOCK_SIZE;
- base = page - offset;
- while (page < end) {
- unsigned long next = MIN(end, base + DIRTY_MEMORY_BLOCK_SIZE);
- unsigned long num = next - base;
- unsigned long found = find_next_bit(blocks->blocks[idx],
- num, offset);
- if (found < num) {
- dirty = true;
- break;
- }
-
- page = next;
- idx++;
- offset = 0;
- base += DIRTY_MEMORY_BLOCK_SIZE;
- }
- }
-
- return dirty;
-}
-
static inline bool cpu_physical_memory_all_dirty(ram_addr_t start,
ram_addr_t length,
unsigned client)
@@ -221,11 +181,7 @@ static inline bool cpu_physical_memory_all_dirty(ram_addr_t start,
return dirty;
}
-static inline bool cpu_physical_memory_get_dirty_flag(ram_addr_t addr,
- unsigned client)
-{
- return cpu_physical_memory_get_dirty(addr, 1, client);
-}
+bool cpu_physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client);
static inline bool cpu_physical_memory_is_clean(ram_addr_t addr)
{
diff --git a/system/physmem.c b/system/physmem.c
index 0ff7349fbbf..a8d201d7048 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -901,6 +901,50 @@ void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t length)
}
}
+static bool physical_memory_get_dirty(ram_addr_t start, ram_addr_t length,
+ unsigned client)
+{
+ DirtyMemoryBlocks *blocks;
+ unsigned long end, page;
+ unsigned long idx, offset, base;
+ bool dirty = false;
+
+ assert(client < DIRTY_MEMORY_NUM);
+
+ end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS;
+ page = start >> TARGET_PAGE_BITS;
+
+ WITH_RCU_READ_LOCK_GUARD() {
+ blocks = qatomic_rcu_read(&ram_list.dirty_memory[client]);
+
+ idx = page / DIRTY_MEMORY_BLOCK_SIZE;
+ offset = page % DIRTY_MEMORY_BLOCK_SIZE;
+ base = page - offset;
+ while (page < end) {
+ unsigned long next = MIN(end, base + DIRTY_MEMORY_BLOCK_SIZE);
+ unsigned long num = next - base;
+ unsigned long found = find_next_bit(blocks->blocks[idx],
+ num, offset);
+ if (found < num) {
+ dirty = true;
+ break;
+ }
+
+ page = next;
+ idx++;
+ offset = 0;
+ base += DIRTY_MEMORY_BLOCK_SIZE;
+ }
+ }
+
+ return dirty;
+}
+
+bool cpu_physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client)
+{
+ return physical_memory_get_dirty(addr, 1, client);
+}
+
/* Note: start and end must be within the same ram block. */
bool cpu_physical_memory_test_and_clear_dirty(ram_addr_t start,
ram_addr_t length,
--
2.51.0
next prev parent reply other threads:[~2025-10-01 18:04 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-01 17:54 [PATCH v2 00/18] system/physmem: Extract API out of 'system/ram_addr.h' header Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 01/18] system/ram_addr: Remove unnecessary 'exec/cpu-common.h' header Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 02/18] accel/kvm: Include missing 'exec/target_page.h' header Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 03/18] hw/s390x/s390-stattrib: " Philippe Mathieu-Daudé
2025-10-02 14:18 ` Eric Farman
2025-10-01 17:54 ` [PATCH v2 04/18] hw/vfio/listener: " Philippe Mathieu-Daudé
2025-10-02 8:31 ` Cédric Le Goater
2025-10-01 17:54 ` [PATCH v2 05/18] target/arm/tcg/mte: " Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 06/18] hw: Remove unnecessary 'system/ram_addr.h' header Philippe Mathieu-Daudé
2025-10-01 19:32 ` Jag Raman
2025-10-02 8:37 ` Cédric Le Goater
2025-10-02 15:59 ` Harsh Prateek Bora
2025-10-02 17:38 ` Philippe Mathieu-Daudé
2025-10-02 16:45 ` Eric Farman
2025-10-01 17:54 ` Philippe Mathieu-Daudé [this message]
2025-10-01 17:54 ` [PATCH v2 08/18] system/physmem: Un-inline cpu_physical_memory_is_clean() Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 09/18] system/physmem: Un-inline cpu_physical_memory_range_includes_clean() Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 10/18] system/physmem: Un-inline cpu_physical_memory_set_dirty_flag() Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 11/18] system/physmem: Un-inline cpu_physical_memory_set_dirty_range() Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 12/18] system/physmem: Remove _WIN32 #ifdef'ry Philippe Mathieu-Daudé
2025-10-01 21:00 ` Richard Henderson
2025-10-01 17:54 ` [PATCH v2 13/18] system/physmem: Un-inline cpu_physical_memory_set_dirty_lebitmap() Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 14/18] system/physmem: Un-inline cpu_physical_memory_dirty_bits_cleared() Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 15/18] system/physmem: Reduce cpu_physical_memory_clear_dirty_range() scope Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 16/18] system/physmem: Reduce cpu_physical_memory_sync_dirty_bitmap() scope Philippe Mathieu-Daudé
2025-10-01 17:54 ` [PATCH v2 17/18] system/physmem: Drop 'cpu_' prefix in Physical Memory API Philippe Mathieu-Daudé
2025-10-02 8:39 ` Cédric Le Goater
2025-10-01 17:54 ` [PATCH v2 18/18] system/physmem: Extract API out of 'system/ram_addr.h' header Philippe Mathieu-Daudé
2025-10-02 8:31 ` Cédric Le Goater
2025-10-02 8:40 ` Cédric Le Goater
2025-10-03 20:54 ` [PATCH v2 00/18] " Philippe Mathieu-Daudé
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