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thunderbolt: Add support for Intel Ice Lake

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The Thunderbolt controller is integrated into the Ice Lake CPU itself
and requires special flows to power it on and off using force power bit
in NHI VSEC registers. Runtime PM (RTD3) and Sx flows also differ from
the discrete solutions. Now the firmware notifies the driver whether
RTD3 entry or exit are possible. The driver is responsible of sending
Go2Sx command through link controller mailbox when system enters Sx
states (suspend-to-mem/disk). Rest of the ICM firwmare flows follow
Titan Ridge.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <YehezkelShB@gmail.com>
Tested-by: Mario Limonciello <mario.limonciello@dell.com>
This commit is contained in:
Mika Westerberg
2018-01-16 22:19:00 +02:00
parent 3f415e5ee1
commit 3cdb9446a1
9 changed files with 526 additions and 22 deletions
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2
include/linux/thunderbolt.h
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@@ -429,6 +429,7 @@ static inline struct tb_xdomain *tb_service_parent(struct tb_service *svc)
* @lock: Must be held during ring creation/destruction. Is acquired by
* interrupt_work when dispatching interrupts to individual rings.
* @pdev: Pointer to the PCI device
* @ops: NHI specific optional ops
* @iobase: MMIO space of the NHI
* @tx_rings: All Tx rings available on this host controller
* @rx_rings: All Rx rings available on this host controller
@@ -442,6 +443,7 @@ static inline struct tb_xdomain *tb_service_parent(struct tb_service *svc)
struct tb_nhi {
spinlock_t lock;
struct pci_dev *pdev;
const struct tb_nhi_ops *ops;
void __iomem *iobase;
struct tb_ring **tx_rings;
struct tb_ring **rx_rings;