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Fri, 29 Aug 2025 06:01:02 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFzpbmdD6NQq2vTFnKGN/6cnfNrrjKpUuP6QPaxbVk3vlZCOKff2eDDKni4SzcCXYOaw4fUvw== X-Received: by 2002:a05:600c:1d26:b0:45b:7c20:5709 with SMTP id 5b1f17b1804b1-45b7c205c14mr51129975e9.12.1756472461632; Fri, 29 Aug 2025 06:01:01 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Igor Mammedov , Peter Xu Subject: [PULL 25/28] hpet: move out main counter read into a separate block Date: Fri, 29 Aug 2025 14:59:32 +0200 Message-ID: <20250829125935.1526984-26-pbonzini@redhat.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250829125935.1526984-1-pbonzini@redhat.com> References: <20250829125935.1526984-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1756574630713116600 Content-Type: text/plain; charset="utf-8" From: Igor Mammedov Follow up patche will switch main counter read to lock-less mode. As preparation for that move relevant branch into a separate top level block to make followup patch cleaner/simplier by reducing contextual noise when lock-less read is introduced. no functional changes. Signed-off-by: Igor Mammedov Reviewed-by: Peter Xu Link: https://lore.kernel.org/r/20250814160600.2327672-5-imammedo@redhat.com Signed-off-by: Paolo Bonzini --- hw/timer/hpet.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c index ab5aa59ae4e..c776afc0f2d 100644 --- a/hw/timer/hpet.c +++ b/hw/timer/hpet.c @@ -431,6 +431,16 @@ static uint64_t hpet_ram_read(void *opaque, hwaddr add= r, addr &=3D ~4; =20 QEMU_LOCK_GUARD(&s->lock); + if (addr =3D=3D HPET_COUNTER) { + if (hpet_enabled(s)) { + cur_tick =3D hpet_get_ticks(s); + } else { + cur_tick =3D s->hpet_counter; + } + trace_hpet_ram_read_reading_counter(addr & 4, cur_tick); + return cur_tick >> shift; + } + /*address range of all global regs*/ if (addr <=3D 0xff) { switch (addr) { @@ -438,14 +448,6 @@ static uint64_t hpet_ram_read(void *opaque, hwaddr add= r, return s->capability >> shift; case HPET_CFG: return s->config >> shift; - case HPET_COUNTER: - if (hpet_enabled(s)) { - cur_tick =3D hpet_get_ticks(s); - } else { - cur_tick =3D s->hpet_counter; - } - trace_hpet_ram_read_reading_counter(addr & 4, cur_tick); - return cur_tick >> shift; case HPET_STATUS: return s->isr >> shift; default: --=20 2.51.0