From: Wendy Liang <wendy.liang@xilinx.com> To: bjorn.andersson@linaro.org Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, "Wendy Liang <wendy.liang@xilinx.com>, Wendy Liang <jliang@xilinx.com>, Michal Simek" <michal.simek@xilinx.com> Subject: [RFC LINUX PATCH 1/3] remoteproc: add rproc mem resource entry Date: Fri, 24 Mar 2017 12:22:14 -0700 [thread overview] Message-ID: <1490383336-23117-2-git-send-email-jliang@xilinx.com> (raw) In-Reply-To: <1490383336-23117-1-git-send-email-jliang@xilinx.com> From: Wendy Liang <wendy.liang@xilinx.com> Add a resource entry to the resource table to tells the host the remote processor's memory which can be used as shared memory. Signed-off-by: Wendy Liang <jliang@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> --- include/linux/remoteproc.h | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 81da495..799f041 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -115,7 +115,8 @@ enum fw_resource_type { RSC_DEVMEM = 1, RSC_TRACE = 2, RSC_VDEV = 3, - RSC_LAST = 4, + RSC_RPROC_MEM = 4, + RSC_LAST = 5, }; #define FW_RSC_ADDR_ANY (-1) @@ -306,6 +307,26 @@ struct fw_rsc_vdev { } __packed; /** + * struct fw_rsc_rproc_mem - remote processor memory + * @da: device address + * @pa: physical address + * @len: length (in bytes) + * @reserved: reserved (must be zero) + * + * This resource entry tells the host to the remote processor + * memory that the host can be used as shared memory. + * + * These request entries should precede other shared resource entries + * such as vdevs, vrings. + */ +struct fw_rsc_rproc_mem { + u32 da; + u32 pa; + u32 len; + u32 reserved; +} __packed; + +/** * struct rproc_mem_entry - memory entry descriptor * @va: virtual address * @dma: dma address -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Wendy Liang <wendy.liang@xilinx.com> To: <bjorn.andersson@linaro.org> Cc: <linux-remoteproc@vger.kernel.org>, <linux-kernel@vger.kernel.org>, "Wendy Liang" <wendy.liang@xilinx.com>, Wendy Liang <jliang@xilinx.com>, Michal Simek <michal.simek@xilinx.com> Subject: [RFC LINUX PATCH 1/3] remoteproc: add rproc mem resource entry Date: Fri, 24 Mar 2017 12:22:14 -0700 [thread overview] Message-ID: <1490383336-23117-2-git-send-email-jliang@xilinx.com> (raw) In-Reply-To: <1490383336-23117-1-git-send-email-jliang@xilinx.com> From: Wendy Liang <wendy.liang@xilinx.com> Add a resource entry to the resource table to tells the host the remote processor's memory which can be used as shared memory. Signed-off-by: Wendy Liang <jliang@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> --- include/linux/remoteproc.h | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 81da495..799f041 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -115,7 +115,8 @@ enum fw_resource_type { RSC_DEVMEM = 1, RSC_TRACE = 2, RSC_VDEV = 3, - RSC_LAST = 4, + RSC_RPROC_MEM = 4, + RSC_LAST = 5, }; #define FW_RSC_ADDR_ANY (-1) @@ -306,6 +307,26 @@ struct fw_rsc_vdev { } __packed; /** + * struct fw_rsc_rproc_mem - remote processor memory + * @da: device address + * @pa: physical address + * @len: length (in bytes) + * @reserved: reserved (must be zero) + * + * This resource entry tells the host to the remote processor + * memory that the host can be used as shared memory. + * + * These request entries should precede other shared resource entries + * such as vdevs, vrings. + */ +struct fw_rsc_rproc_mem { + u32 da; + u32 pa; + u32 len; + u32 reserved; +} __packed; + +/** * struct rproc_mem_entry - memory entry descriptor * @va: virtual address * @dma: dma address -- 1.9.1
next prev parent reply other threads:[~2017-03-24 19:22 UTC|newest] Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-03-24 19:22 [RFC LINUX PATCH 0/3] Allow remote to specify shared memory Wendy Liang 2017-03-24 19:22 ` Wendy Liang 2017-03-24 19:22 ` Wendy Liang [this message] 2017-03-24 19:22 ` [RFC LINUX PATCH 1/3] remoteproc: add rproc mem resource entry Wendy Liang 2017-03-24 19:22 ` [RFC LINUX PATCH 2/3] remoteproc: add rproc_mem resource entry handler Wendy Liang 2017-03-24 19:22 ` Wendy Liang 2017-03-24 19:22 ` [RFC LINUX PATCH 3/3] remoteproc: Release DMA declare mem when cleanup rsc Wendy Liang 2017-03-24 19:22 ` Wendy Liang 2017-03-27 15:54 ` [RFC LINUX PATCH 0/3] Allow remote to specify shared memory Suman Anna 2017-03-27 15:54 ` Suman Anna 2017-03-28 18:52 ` Wendy Liang 2017-03-28 23:24 ` Suman Anna 2017-03-28 23:24 ` Suman Anna 2017-03-29 16:41 ` Jiaying Liang 2017-03-29 16:41 ` Jiaying Liang 2017-03-29 18:56 ` Loic PALLARDY 2017-03-29 18:56 ` Loic PALLARDY 2017-03-30 17:39 ` Jiaying Liang 2017-03-30 17:39 ` Jiaying Liang
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