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charset="US-ASCII"; x-default=true Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.513, 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_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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-rust@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: QEMU Rust-related patches and discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org Sender: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org Add the minimal support that is needed by pl011's event and tracepoint. Reviewed-by: Zhao Liu Reviewed-by: Stefan Hajnoczi Signed-off-by: Paolo Bonzini --- rust/hw/core/src/qdev.rs | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/rust/hw/core/src/qdev.rs b/rust/hw/core/src/qdev.rs index a4493dbf011..c3097a284d7 100644 --- a/rust/hw/core/src/qdev.rs +++ b/rust/hw/core/src/qdev.rs @@ -411,6 +411,39 @@ fn init_gpio_out(&self, pins: &[InterruptSource]) { impl DeviceMethods for R where R::Target: IsA {} +impl Clock { + pub const PERIOD_1SEC: u64 = bindings::CLOCK_PERIOD_1SEC; + + pub const fn period_from_ns(ns: u64) -> u64 { + ns * Self::PERIOD_1SEC / 1_000_000_000 + } + + pub const fn period_from_hz(hz: u64) -> u64 { + if hz == 0 { + 0 + } else { + Self::PERIOD_1SEC / hz + } + } + + pub const fn period_to_hz(period: u64) -> u64 { + if period == 0 { + 0 + } else { + Self::PERIOD_1SEC / period + } + } + + pub const fn period(&self) -> u64 { + // SAFETY: Clock is returned by init_clock_in with zero value for period + unsafe { &*self.0.as_ptr() }.period + } + + pub const fn hz(&self) -> u64 { + Self::period_to_hz(self.period()) + } +} + unsafe impl ObjectType for Clock { type Class = ObjectClass; const TYPE_NAME: &'static CStr = -- 2.51.0