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(154.red-83-50-83.dynamicip.rima-tde.net. [83.50.83.154]) by smtp.gmail.com with ESMTPSA id z7sm19180054wrm.117.2022.01.18.04.03.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jan 2022 04:03:24 -0800 (PST) To: qemu-devel@nongnu.org Cc: Peter Xu , David Hildenbrand , Paolo Bonzini , qemu-block@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , "Michael S . Tsirkin" , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PULL 11/19] hw/pci: Document pci_dma_map() Date: Tue, 18 Jan 2022 13:02:21 +0100 Message-Id: <20220118120229.196337-12-f4bug@amsat.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220118120229.196337-1-f4bug@amsat.org> References: <20220118120229.196337-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::330 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::330; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x330.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.248, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= via From: Philippe Mathieu-Daudé Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Michael S. Tsirkin Reviewed-by: Richard Henderson Message-Id: <20220111184309.28637-5-f4bug@amsat.org> Signed-off-by: Philippe Mathieu-Daudé --- include/hw/pci/pci.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 483d5c7c727..023abc0f791 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -881,6 +881,18 @@ PCI_DMA_DEFINE_LDST(q_be, q_be, 64); #undef PCI_DMA_DEFINE_LDST +/** + * pci_dma_map: Map device PCI address space range into host virtual address + * @dev: #PCIDevice to be accessed + * @addr: address within that device's address space + * @plen: pointer to length of buffer; updated on return to indicate + * if only a subset of the requested range has been mapped + * @dir: indicates the transfer direction + * + * Return: A host pointer, or %NULL if the resources needed to + * perform the mapping are exhausted (in that case *@plen + * is set to zero). + */ static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t *plen, DMADirection dir) { -- 2.34.1