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authorMaxime Ripard <maxime@cerno.tech>2021-05-11 13:35:52 +0200
committerMaxime Ripard <maxime@cerno.tech>2021-05-11 13:35:52 +0200
commitc55b44c9386f3ee1b08752638559f19deaf6040d (patch)
treec843a21f45180387fcd9eb2625cc9d1f166a3156 /drivers/thunderbolt/domain.c
parentMAINTAINERS: Update my e-mail (diff)
parentLinux 5.13-rc1 (diff)
downloadlinux-c55b44c9386f3ee1b08752638559f19deaf6040d.tar.xz
linux-c55b44c9386f3ee1b08752638559f19deaf6040d.zip
Merge drm/drm-fixes into drm-misc-fixes
Start this new release drm-misc-fixes branch Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/thunderbolt/domain.c')
-rw-r--r--drivers/thunderbolt/domain.c89
1 files changed, 51 insertions, 38 deletions
diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
index 89ae614eaba2..98f4056f89ff 100644
--- a/drivers/thunderbolt/domain.c
+++ b/drivers/thunderbolt/domain.c
@@ -341,9 +341,34 @@ struct device_type tb_domain_type = {
.release = tb_domain_release,
};
+static bool tb_domain_event_cb(void *data, enum tb_cfg_pkg_type type,
+ const void *buf, size_t size)
+{
+ struct tb *tb = data;
+
+ if (!tb->cm_ops->handle_event) {
+ tb_warn(tb, "domain does not have event handler\n");
+ return true;
+ }
+
+ switch (type) {
+ case TB_CFG_PKG_XDOMAIN_REQ:
+ case TB_CFG_PKG_XDOMAIN_RESP:
+ if (tb_is_xdomain_enabled())
+ return tb_xdomain_handle_request(tb, type, buf, size);
+ break;
+
+ default:
+ tb->cm_ops->handle_event(tb, type, buf, size);
+ }
+
+ return true;
+}
+
/**
* tb_domain_alloc() - Allocate a domain
* @nhi: Pointer to the host controller
+ * @timeout_msec: Control channel timeout for non-raw messages
* @privsize: Size of the connection manager private data
*
* Allocates and initializes a new Thunderbolt domain. Connection
@@ -355,7 +380,7 @@ struct device_type tb_domain_type = {
*
* Return: allocated domain structure on %NULL in case of error
*/
-struct tb *tb_domain_alloc(struct tb_nhi *nhi, size_t privsize)
+struct tb *tb_domain_alloc(struct tb_nhi *nhi, int timeout_msec, size_t privsize)
{
struct tb *tb;
@@ -382,6 +407,10 @@ struct tb *tb_domain_alloc(struct tb_nhi *nhi, size_t privsize)
if (!tb->wq)
goto err_remove_ida;
+ tb->ctl = tb_ctl_alloc(nhi, timeout_msec, tb_domain_event_cb, tb);
+ if (!tb->ctl)
+ goto err_destroy_wq;
+
tb->dev.parent = &nhi->pdev->dev;
tb->dev.bus = &tb_bus_type;
tb->dev.type = &tb_domain_type;
@@ -391,6 +420,8 @@ struct tb *tb_domain_alloc(struct tb_nhi *nhi, size_t privsize)
return tb;
+err_destroy_wq:
+ destroy_workqueue(tb->wq);
err_remove_ida:
ida_simple_remove(&tb_domain_ida, tb->index);
err_free:
@@ -399,30 +430,6 @@ err_free:
return NULL;
}
-static bool tb_domain_event_cb(void *data, enum tb_cfg_pkg_type type,
- const void *buf, size_t size)
-{
- struct tb *tb = data;
-
- if (!tb->cm_ops->handle_event) {
- tb_warn(tb, "domain does not have event handler\n");
- return true;
- }
-
- switch (type) {
- case TB_CFG_PKG_XDOMAIN_REQ:
- case TB_CFG_PKG_XDOMAIN_RESP:
- if (tb_is_xdomain_enabled())
- return tb_xdomain_handle_request(tb, type, buf, size);
- break;
-
- default:
- tb->cm_ops->handle_event(tb, type, buf, size);
- }
-
- return true;
-}
-
/**
* tb_domain_add() - Add domain to the system
* @tb: Domain to add
@@ -442,13 +449,6 @@ int tb_domain_add(struct tb *tb)
return -EINVAL;
mutex_lock(&tb->lock);
-
- tb->ctl = tb_ctl_alloc(tb->nhi, tb_domain_event_cb, tb);
- if (!tb->ctl) {
- ret = -ENOMEM;
- goto err_unlock;
- }
-
/*
* tb_schedule_hotplug_handler may be called as soon as the config
* channel is started. Thats why we have to hold the lock here.
@@ -493,7 +493,6 @@ err_domain_del:
device_del(&tb->dev);
err_ctl_stop:
tb_ctl_stop(tb->ctl);
-err_unlock:
mutex_unlock(&tb->lock);
return ret;
@@ -793,6 +792,10 @@ int tb_domain_disconnect_pcie_paths(struct tb *tb)
* tb_domain_approve_xdomain_paths() - Enable DMA paths for XDomain
* @tb: Domain enabling the DMA paths
* @xd: XDomain DMA paths are created to
+ * @transmit_path: HopID we are using to send out packets
+ * @transmit_ring: DMA ring used to send out packets
+ * @receive_path: HopID the other end is using to send packets to us
+ * @receive_ring: DMA ring used to receive packets from @receive_path
*
* Calls connection manager specific method to enable DMA paths to the
* XDomain in question.
@@ -801,18 +804,25 @@ int tb_domain_disconnect_pcie_paths(struct tb *tb)
* particular returns %-ENOTSUPP if the connection manager
* implementation does not support XDomains.
*/
-int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd)
+int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd,
+ int transmit_path, int transmit_ring,
+ int receive_path, int receive_ring)
{
if (!tb->cm_ops->approve_xdomain_paths)
return -ENOTSUPP;
- return tb->cm_ops->approve_xdomain_paths(tb, xd);
+ return tb->cm_ops->approve_xdomain_paths(tb, xd, transmit_path,
+ transmit_ring, receive_path, receive_ring);
}
/**
* tb_domain_disconnect_xdomain_paths() - Disable DMA paths for XDomain
* @tb: Domain disabling the DMA paths
* @xd: XDomain whose DMA paths are disconnected
+ * @transmit_path: HopID we are using to send out packets
+ * @transmit_ring: DMA ring used to send out packets
+ * @receive_path: HopID the other end is using to send packets to us
+ * @receive_ring: DMA ring used to receive packets from @receive_path
*
* Calls connection manager specific method to disconnect DMA paths to
* the XDomain in question.
@@ -821,12 +831,15 @@ int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd)
* particular returns %-ENOTSUPP if the connection manager
* implementation does not support XDomains.
*/
-int tb_domain_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd)
+int tb_domain_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd,
+ int transmit_path, int transmit_ring,
+ int receive_path, int receive_ring)
{
if (!tb->cm_ops->disconnect_xdomain_paths)
return -ENOTSUPP;
- return tb->cm_ops->disconnect_xdomain_paths(tb, xd);
+ return tb->cm_ops->disconnect_xdomain_paths(tb, xd, transmit_path,
+ transmit_ring, receive_path, receive_ring);
}
static int disconnect_xdomain(struct device *dev, void *data)
@@ -837,7 +850,7 @@ static int disconnect_xdomain(struct device *dev, void *data)
xd = tb_to_xdomain(dev);
if (xd && xd->tb == tb)
- ret = tb_xdomain_disable_paths(xd);
+ ret = tb_xdomain_disable_all_paths(xd);
return ret;
}