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Fri, 13 Oct 2023 07:11:34 -0700 (PDT) Received: from m1x-phil.lan ([176.172.118.168]) by smtp.gmail.com with ESMTPSA id s10-20020a170906354a00b0099bd1ce18fesm12674983eja.10.2023.10.13.07.11.32 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 13 Oct 2023 07:11:33 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Evgeny Iakovlev , =?utf-8?q?Marc-Andr=C3=A9_?= =?utf-8?q?Lureau?= , Gavin Shan , =?utf-8?q?Alex_Benn=C3=A9e?= , qemu-arm@nongnu.org, Peter Maydell , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= Subject: [PATCH v3 0/10] hw/char/pl011: Implement TX (async) FIFO to avoid blocking the main loop Date: Fri, 13 Oct 2023 16:11:21 +0200 Message-ID: <20231013141131.1531-1-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::62a; envelope-from=philmd@linaro.org; helo=mail-ej1-x62a.google.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Hi, This series add support for (async) FIFO on the transmit path of the PL011 UART. Since v2: - Added R-b tags - Addressed Richard comments on migration Since v1: - Restrict pl011_ops[] impl access_size, - Do not check transmitter is enabled (Peter), - Addressed Alex's review comments, - Simplified migration trying to care about backward compat, but still unsure... Philippe Mathieu-Daudé (9): util/fifo8: Allow fifo8_pop_buf() to not populate popped length util/fifo8: Introduce fifo8_peek_buf() hw/char/pl011: Split RX/TX path of pl011_reset_fifo() hw/char/pl011: Extract pl011_write_txdata() from pl011_write() hw/char/pl011: Extract pl011_read_rxdata() from pl011_read() hw/char/pl011: Warn when using disabled transmitter hw/char/pl011: Check if receiver is enabled hw/char/pl011: Rename RX FIFO methods hw/char/pl011: Add transmit FIFO to PL011State hw/char/pl011: Implement TX FIFO include/hw/char/pl011.h | 2 + include/qemu/fifo8.h | 37 +++++++++-- hw/char/pl011.c | 140 +++++++++++++++++++++++++++++----------- util/fifo8.c | 28 ++++++-- hw/char/trace-events | 4 +- 5 files changed, 161 insertions(+), 50 deletions(-)