layerscape: add patches-5.4

[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch

diff --git a/target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch b/target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch
new file mode 100644 (file)
index 0000000..a609905
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch
@@ -0,0 +1,99 @@
+From 350201cc09a58dcf5c49f636238b01637f5ee06d Mon Sep 17 00:00:00 2001
+From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+Date: Fri, 13 Apr 2018 11:35:10 +0300
+Subject: [PATCH] bus: fsl-mc: Add dprc-reset-container support
+
+DPRC-reset is required for VFIO and is missing from
+mc-bus support.
+This patch added reset-container support.
+
+Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
+Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+---
+ drivers/bus/fsl-mc/dprc.c           | 41 +++++++++++++++++++++++++++++++++++++
+ drivers/bus/fsl-mc/fsl-mc-private.h | 10 +++++++++
+ 2 files changed, 51 insertions(+)
+
+--- a/drivers/bus/fsl-mc/dprc.c
++++ b/drivers/bus/fsl-mc/dprc.c
+@@ -73,6 +73,47 @@ int dprc_close(struct fsl_mc_io *mc_io,
+ EXPORT_SYMBOL_GPL(dprc_close);
+ 
+ /**
++ * dprc_reset_container - Reset child container.
++ * @mc_io:    Pointer to MC portal's I/O object
++ * @cmd_flags:        Command flags; one or more of 'MC_CMD_FLAG_'
++ * @token:    Token of DPRC object
++ * @child_container_id:       ID of the container to reset
++ *
++ * In case a software context crashes or becomes non-responsive, the parent
++ * may wish to reset its resources container before the software context is
++ * restarted.
++ *
++ * This routine informs all objects assigned to the child container that the
++ * container is being reset, so they may perform any cleanup operations that are
++ * needed. All objects handles that were owned by the child container shall be
++ * closed.
++ *
++ * Note that such request may be submitted even if the child software context
++ * has not crashed, but the resulting object cleanup operations will not be
++ * aware of that.
++ *
++ * Return:    '0' on Success; Error code otherwise.
++ */
++int dprc_reset_container(struct fsl_mc_io *mc_io,
++                       u32 cmd_flags,
++                       u16 token,
++                       int child_container_id)
++{
++      struct fsl_mc_command cmd = { 0 };
++      struct dprc_cmd_reset_container *cmd_params;
++
++      /* prepare command */
++      cmd.header = mc_encode_cmd_header(DPRC_CMDID_RESET_CONT,
++                                        cmd_flags, token);
++      cmd_params = (struct dprc_cmd_reset_container *)cmd.params;
++      cmd_params->child_container_id = cpu_to_le32(child_container_id);
++
++      /* send command to mc*/
++      return mc_send_command(mc_io, &cmd);
++}
++EXPORT_SYMBOL_GPL(dprc_reset_container);
++
++/**
+  * dprc_set_irq() - Set IRQ information for the DPRC to trigger an interrupt.
+  * @mc_io:    Pointer to MC portal's I/O object
+  * @cmd_flags:        Command flags; one or more of 'MC_CMD_FLAG_'
+--- a/drivers/bus/fsl-mc/fsl-mc-private.h
++++ b/drivers/bus/fsl-mc/fsl-mc-private.h
+@@ -93,6 +93,7 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
+ #define DPRC_CMDID_GET_API_VERSION              DPRC_CMD(0xa05)
+ 
+ #define DPRC_CMDID_GET_ATTR                     DPRC_CMD(0x004)
++#define DPRC_CMDID_RESET_CONT                   DPRC_CMD(0x005)
+ 
+ #define DPRC_CMDID_SET_IRQ                      DPRC_CMD(0x010)
+ #define DPRC_CMDID_SET_IRQ_ENABLE               DPRC_CMD(0x012)
+@@ -111,6 +112,10 @@ struct dprc_cmd_open {
+       __le32 container_id;
+ };
+ 
++struct dprc_cmd_reset_container {
++      __le32 child_container_id;
++};
++
+ struct dprc_cmd_set_irq {
+       /* cmd word 0 */
+       __le32 irq_val;
+@@ -394,6 +399,11 @@ int dprc_get_container_id(struct fsl_mc_
+                         u32 cmd_flags,
+                         int *container_id);
+ 
++int dprc_reset_container(struct fsl_mc_io *mc_io,
++                       u32 cmd_flags,
++                       u16 token,
++                       int child_container_id);
++
+ /*
+  * Data Path Buffer Pool (DPBP) API
+  */