soc/intel/common: Adapt XHCI elog driver for reuse
Currently this XHCI driver assumes the PCH XHCI controller, but the TCSS
or North XHCI block has a similar enough PCI MMIO structure to make this
code mostly reusable.
1) Rename everything to drop the `pch_` prefix
2) xhci_update_wake_event() now takes in a pci_devfn_t for the XHCI
controller
3) soc_get_xhci_usb_info() also now takes a pci_devfn_t for the XHCI
controller
BUG=b:172279037
TEST=plug in USB keyboard while in S0, enter S0ix and verify entry via
EC; type on keyboard, verify it wakes up, eventlog contains:
39 | 2020-12-10 09:40:21 | S0ix Enter
40 | 2020-12-10 09:40:42 | S0ix Exit
41 | 2020-12-10 09:40:42 | Wake Source | PME - XHCI (USB 2.0 port) | 1
42 | 2020-12-10 09:40:42 | Wake Source | GPE # | 109
which verifies it still functions for the PCH XHCI controller
Change-Id: I9f28354e031e3eda587f4faf8ef7595dce8b33ea
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47411
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/apollolake/elog.c b/src/soc/intel/apollolake/elog.c
index 3e82c32..b65ab10 100644
--- a/src/soc/intel/apollolake/elog.c
+++ b/src/soc/intel/apollolake/elog.c
@@ -2,6 +2,7 @@
#include <cbmem.h>
#include <console/console.h>
+#include <device/pci_type.h>
#include <elog.h>
#include <intelblocks/pmclib.h>
#include <intelblocks/xhci.h>
@@ -24,6 +25,10 @@
static void pch_log_wake_source(struct chipset_power_state *ps)
{
+ const struct xhci_wake_info xhci_wake_info[] = {
+ { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
+ };
+
/* Power Button */
if (ps->pm1_sts & PWRBTN_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0);
@@ -42,7 +47,8 @@
/* XHCI */
if (ps->gpe0_sts[GPE0_A] & XHCI_PME_STS)
- pch_xhci_update_wake_event(soc_get_xhci_usb_info());
+ xhci_update_wake_event(xhci_wake_info,
+ ARRAY_SIZE(xhci_wake_info));
/* SMBUS Wake */
if (ps->gpe0_sts[GPE0_A] & SMB_WAK_STS)
diff --git a/src/soc/intel/apollolake/xhci.c b/src/soc/intel/apollolake/xhci.c
index 4584dc7..47156f4 100644
--- a/src/soc/intel/apollolake/xhci.c
+++ b/src/soc/intel/apollolake/xhci.c
@@ -1,5 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <device/pci_type.h>
#include <intelblocks/xhci.h>
#define XHCI_USB2_PORT_STATUS_REG 0x480
@@ -19,7 +20,8 @@
.num_usb3_ports = XHCI_USB3_PORT_NUM,
};
-const struct xhci_usb_info *soc_get_xhci_usb_info(void)
+const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
{
+ /* Apollo Lake only has one XHCI controller */
return &usb_info;
}
diff --git a/src/soc/intel/cannonlake/elog.c b/src/soc/intel/cannonlake/elog.c
index 3600d76..104a78c 100644
--- a/src/soc/intel/cannonlake/elog.c
+++ b/src/soc/intel/cannonlake/elog.c
@@ -22,19 +22,6 @@
#define PME_STS_BIT (1 << 15)
-static void pch_log_add_elog_event(const struct pme_status_info *info)
-{
- /*
- * If wake source is XHCI, check for detailed wake source events on
- * USB2/3 ports.
- */
- if ((info->dev == PCH_DEV_XHCI) &&
- pch_xhci_update_wake_event(soc_get_xhci_usb_info()))
- return;
-
- elog_add_event_wake(info->elog_event, 0);
-}
-
static void pch_log_pme_internal_wake_source(void)
{
size_t i;
@@ -46,12 +33,11 @@
uint16_t val;
bool dev_found = false;
- struct pme_status_info pme_status_info[] = {
+ const struct pme_status_info pme_status_info[] = {
{ PCH_DEV_HDA, 0x54, ELOG_WAKE_SOURCE_PME_HDA },
{ PCH_DEV_GBE, 0xcc, ELOG_WAKE_SOURCE_PME_GBE },
{ PCH_DEV_SATA, 0x74, ELOG_WAKE_SOURCE_PME_SATA },
{ PCH_DEV_CSE, 0x54, ELOG_WAKE_SOURCE_PME_CSE },
- { PCH_DEV_XHCI, 0x74, ELOG_WAKE_SOURCE_PME_XHCI },
{ PCH_DEV_USBOTG, 0x84, ELOG_WAKE_SOURCE_PME_XDCI },
/*
* The power management control/status register is not
@@ -60,6 +46,9 @@
*/
{ PCH_DEV_CNViWIFI, 0xcc, ELOG_WAKE_SOURCE_PME_WIFI },
};
+ const struct xhci_wake_info xhci_wake_info[] = {
+ { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
+ };
for (i = 0; i < ARRAY_SIZE(pme_status_info); i++) {
dev = pme_status_info[i].dev;
@@ -71,19 +60,20 @@
if ((val == 0xFFFF) || !(val & PME_STS_BIT))
continue;
- pch_log_add_elog_event(&pme_status_info[i]);
+ elog_add_event_wake(pme_status_info[i].elog_event, 0);
dev_found = true;
}
/*
- * If device is still not found, but the wake source is internal PME,
- * try probing XHCI ports to see if any of the USB2/3 ports indicate
- * that it was the wake source. This path would be taken in case of GSMI
- * logging with S0ix where the pci_pm_resume_noirq runs and clears the
- * PME_STS_BIT in controller register.
+ * Check the XHCI controllers' USB2 & USB3 ports for wake events. There
+ * are cases (GSMI logging for S0ix clears PME_STS_BIT) where the XHCI
+ * controller's PME_STS_BIT may have already been cleared, so the host
+ * controller wake wouldn't get logged here; therefore, the host
+ * controller wake event is logged before its corresponding port wake
+ * event is logged.
*/
- if (!dev_found)
- dev_found = pch_xhci_update_wake_event(soc_get_xhci_usb_info());
+ dev_found |= xhci_update_wake_event(xhci_wake_info,
+ ARRAY_SIZE(xhci_wake_info));
if (!dev_found)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
diff --git a/src/soc/intel/cannonlake/xhci.c b/src/soc/intel/cannonlake/xhci.c
index 46cc120..0fb0936 100644
--- a/src/soc/intel/cannonlake/xhci.c
+++ b/src/soc/intel/cannonlake/xhci.c
@@ -1,5 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <device/pci_type.h>
#include <intelblocks/xhci.h>
#define XHCI_USB2_PORT_STATUS_REG 0x480
@@ -14,7 +15,7 @@
.num_usb3_ports = XHCI_USB3_PORT_NUM,
};
-const struct xhci_usb_info *soc_get_xhci_usb_info(void)
+const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
{
return &usb_info;
}
diff --git a/src/soc/intel/common/block/include/intelblocks/xhci.h b/src/soc/intel/common/block/include/intelblocks/xhci.h
index 568d292..1adcbc0 100644
--- a/src/soc/intel/common/block/include/intelblocks/xhci.h
+++ b/src/soc/intel/common/block/include/intelblocks/xhci.h
@@ -4,6 +4,8 @@
#define SOC_INTEL_COMMON_BLOCK_XHCI_H
#include <device/device.h>
+#include <elog.h>
+#include <stdint.h>
/*
* struct xhci_usb_info - Data containing number of USB ports & offset.
@@ -20,7 +22,19 @@
};
/*
- * pch_xhci_update_wake_event() - Identify and log XHCI wake events.
+ * struct xhci_wake_info - Relates an XHCI device to registers and wake types
+ * @xhci_dev: devfn of the XHCI device
+ * @elog_wake_type_host: the wake type for the controller device
+ */
+struct xhci_wake_info {
+ pci_devfn_t xhci_dev;
+ uint8_t elog_wake_type_host;
+};
+
+/*
+ * xhci_update_wake_event() - Identify and log XHCI wake events.
+ * @wake_info: A mapping of XHCI devfn to elog wake types
+ * @wake_info_count: Count of items in wake_info
* @info: Information about number of USB ports and their status reg offset.
*
* This function goes through individual USB port status registers within the
@@ -29,7 +43,8 @@
*
* Return: True if any port is identified as a wake source, false if none.
*/
-bool pch_xhci_update_wake_event(const struct xhci_usb_info *info);
+bool xhci_update_wake_event(const struct xhci_wake_info *wake_info,
+ size_t wake_info_count);
void soc_xhci_init(struct device *dev);
@@ -41,7 +56,7 @@
*
* Return: USB ports and status register offset info for the SoC.
*/
-const struct xhci_usb_info *soc_get_xhci_usb_info(void);
+const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev);
/*
* usb_xhci_disable_unused() - Disable unused USB devices
diff --git a/src/soc/intel/common/block/xhci/elog.c b/src/soc/intel/common/block/xhci/elog.c
index c3043cb..fb59897 100644
--- a/src/soc/intel/common/block/xhci/elog.c
+++ b/src/soc/intel/common/block/xhci/elog.c
@@ -20,23 +20,23 @@
#define XHCI_STATUS_PLS_MASK (0xF << XHCI_STATUS_PLS_SHIFT)
#define XHCI_STATUS_PLS_RESUME (15 << XHCI_STATUS_PLS_SHIFT)
-static bool pch_xhci_csc_set(uint32_t port_status)
+static bool xhci_csc_set(uint32_t port_status)
{
return !!(port_status & XHCI_STATUS_CSC);
}
-static bool pch_xhci_wake_capable(uint32_t port_status)
+static bool xhci_wake_capable(uint32_t port_status)
{
return !!((port_status & XHCI_STATUS_WCE) |
(port_status & XHCI_STATUS_WDE));
}
-static bool pch_xhci_plc_set(uint32_t port_status)
+static bool xhci_plc_set(uint32_t port_status)
{
return !!(port_status & XHCI_STATUS_PLC);
}
-static bool pch_xhci_resume(uint32_t port_status)
+static bool xhci_resume(uint32_t port_status)
{
return (port_status & XHCI_STATUS_PLS_MASK) == XHCI_STATUS_PLS_RESUME;
}
@@ -55,7 +55,7 @@
* true : Wake source was found.
* false : Wake source was not found.
*/
-static bool pch_xhci_port_wake_check(uintptr_t base, uint8_t num, uint8_t event)
+static bool xhci_port_wake_check(uintptr_t base, uint8_t num, uint8_t host_event, uint8_t event)
{
uint32_t i, port_status;
bool found = false;
@@ -73,8 +73,9 @@
* connect/disconnect to identify if the port caused wake
* event for USB attach/detach.
*/
- if (pch_xhci_csc_set(port_status) &&
- pch_xhci_wake_capable(port_status)) {
+ if (xhci_csc_set(port_status) &&
+ xhci_wake_capable(port_status)) {
+ elog_add_event_wake(host_event, 0);
elog_add_event_wake(event, i + 1);
found = true;
continue;
@@ -84,8 +85,9 @@
* Check if PLC is set and PLS indicates resume to identify if
* the port caused wake event for USB activity.
*/
- if (pch_xhci_plc_set(port_status) &&
- pch_xhci_resume(port_status)) {
+ if (xhci_plc_set(port_status) &&
+ xhci_resume(port_status)) {
+ elog_add_event_wake(host_event, 0);
elog_add_event_wake(event, i + 1);
found = true;
}
@@ -93,50 +95,35 @@
return found;
}
-/*
- * Update elog event and instance depending upon the USB2 port that caused
- * the wake event.
- *
- * Return value:
- * true = Indicates that USB2 wake event was found.
- * false = Indicates that USB2 wake event was not found.
- */
-static inline bool pch_xhci_usb2_update_wake_event(uintptr_t mmio_base,
- const struct xhci_usb_info *info)
+bool xhci_update_wake_event(const struct xhci_wake_info *wake_info,
+ size_t wake_info_count)
{
- return pch_xhci_port_wake_check(mmio_base + info->usb2_port_status_reg,
- info->num_usb2_ports,
- ELOG_WAKE_SOURCE_PME_XHCI_USB_2);
-}
-
-/*
- * Update elog event and instance depending upon the USB3 port that caused
- * the wake event.
- *
- * Return value:
- * true = Indicates that USB3 wake event was found.
- * false = Indicates that USB3 wake event was not found.
- */
-static inline bool pch_xhci_usb3_update_wake_event(uintptr_t mmio_base,
- const struct xhci_usb_info *info)
-{
- return pch_xhci_port_wake_check(mmio_base + info->usb3_port_status_reg,
- info->num_usb3_ports,
- ELOG_WAKE_SOURCE_PME_XHCI_USB_3);
-}
-
-bool pch_xhci_update_wake_event(const struct xhci_usb_info *info)
-{
+ const struct xhci_usb_info *usb_info;
uintptr_t mmio_base;
bool event_found = false;
- mmio_base = ALIGN_DOWN(pci_read_config32(PCH_DEV_XHCI,
- PCI_BASE_ADDRESS_0), 16);
+ size_t i;
- if (pch_xhci_usb2_update_wake_event(mmio_base, info))
- event_found = true;
+ for (i = 0; i < wake_info_count; ++i) {
+ /* Assumes BAR0 is MBAR */
+ mmio_base = pci_s_read_config32(wake_info[i].xhci_dev,
+ PCI_BASE_ADDRESS_0);
+ mmio_base &= ~PCI_BASE_ADDRESS_MEM_ATTR_MASK;
+ usb_info = soc_get_xhci_usb_info(wake_info[i].xhci_dev);
- if (pch_xhci_usb3_update_wake_event(mmio_base, info))
- event_found = true;
+ /* Check USB2 port status & control registers */
+ if (xhci_port_wake_check(mmio_base + usb_info->usb2_port_status_reg,
+ usb_info->num_usb2_ports,
+ wake_info[i].elog_wake_type_host,
+ ELOG_WAKE_SOURCE_PME_XHCI_USB_2))
+ event_found = true;
+
+ /* Check USB3 port status & control registers */
+ if (xhci_port_wake_check(mmio_base + usb_info->usb3_port_status_reg,
+ usb_info->num_usb3_ports,
+ wake_info[i].elog_wake_type_host,
+ ELOG_WAKE_SOURCE_PME_XHCI_USB_3))
+ event_found = true;
+ }
return event_found;
}
diff --git a/src/soc/intel/common/block/xhci/xhci.c b/src/soc/intel/common/block/xhci/xhci.c
index 47f2567..705fbb0 100644
--- a/src/soc/intel/common/block/xhci/xhci.c
+++ b/src/soc/intel/common/block/xhci/xhci.c
@@ -57,7 +57,7 @@
unsigned int port_id))
{
struct device *xhci, *hub = NULL, *port = NULL;
- const struct xhci_usb_info *info = soc_get_xhci_usb_info();
+ const struct xhci_usb_info *info = soc_get_xhci_usb_info(PCH_DEVFN_XHCI);
struct drivers_usb_acpi_config *config;
bool enable;
diff --git a/src/soc/intel/jasperlake/elog.c b/src/soc/intel/jasperlake/elog.c
index 5d3c69e..cb9625a 100644
--- a/src/soc/intel/jasperlake/elog.c
+++ b/src/soc/intel/jasperlake/elog.c
@@ -57,19 +57,6 @@
}
}
-static void pch_log_add_elog_event(const struct pme_map *ipme_map)
-{
- /*
- * If wake source is XHCI, check for detailed wake source events on
- * USB2/3 ports.
- */
- if ((ipme_map->devfn == PCH_DEVFN_XHCI) &&
- pch_xhci_update_wake_event(soc_get_xhci_usb_info()))
- return;
-
- elog_add_event_wake(ipme_map->wake_source, 0);
-}
-
static void pch_log_pme_internal_wake_source(void)
{
size_t i;
@@ -80,10 +67,12 @@
{ PCH_DEVFN_GBE, ELOG_WAKE_SOURCE_PME_GBE },
{ PCH_DEVFN_SATA, ELOG_WAKE_SOURCE_PME_SATA },
{ PCH_DEVFN_CSE, ELOG_WAKE_SOURCE_PME_CSE },
- { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
{ PCH_DEVFN_USBOTG, ELOG_WAKE_SOURCE_PME_XDCI },
{ PCH_DEVFN_CNVI_WIFI, ELOG_WAKE_SOURCE_PME_WIFI },
};
+ const struct xhci_wake_info xhci_wake_info[] = {
+ { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
+ };
for (i = 0; i < ARRAY_SIZE(ipme_map); i++) {
const struct device *dev = pcidev_path_on_root(ipme_map[i].devfn);
@@ -91,20 +80,21 @@
continue;
if (pci_dev_is_wake_source(dev)) {
- pch_log_add_elog_event(&ipme_map[i]);
+ elog_add_event_wake(ipme_map[i].wake_source, 0);
dev_found = true;
}
}
/*
- * If device is still not found, but the wake source is internal PME,
- * try probing XHCI ports to see if any of the USB2/3 ports indicate
- * that it was the wake source. This path would be taken in case of GSMI
- * logging with S0ix where the pci_pm_resume_noirq runs and clears the
- * PME_STS_BIT in controller register.
+ * Check the XHCI controllers' USB2 & USB3 ports for wake events. There
+ * are cases (GSMI logging for S0ix clears PME_STS_BIT) where the XHCI
+ * controller's PME_STS_BIT may have already been cleared, so the host
+ * controller wake wouldn't get logged here; therefore, the host
+ * controller wake event is logged before its corresponding port wake
+ * event is logged.
*/
- if (!dev_found)
- dev_found = pch_xhci_update_wake_event(soc_get_xhci_usb_info());
+ dev_found |= xhci_update_wake_event(xhci_wake_info,
+ ARRAY_SIZE(xhci_wake_info));
if (!dev_found)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
diff --git a/src/soc/intel/jasperlake/xhci.c b/src/soc/intel/jasperlake/xhci.c
index 424751e..eebacca 100644
--- a/src/soc/intel/jasperlake/xhci.c
+++ b/src/soc/intel/jasperlake/xhci.c
@@ -1,5 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <device/pci_type.h>
#include <intelblocks/xhci.h>
#define XHCI_USB2_PORT_STATUS_REG 0x480
@@ -14,7 +15,8 @@
.num_usb3_ports = XHCI_USB3_PORT_NUM,
};
-const struct xhci_usb_info *soc_get_xhci_usb_info(void)
+const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
{
+ /* Jasper Lake only has one XHCI controller */
return &usb_info;
}
diff --git a/src/soc/intel/skylake/elog.c b/src/soc/intel/skylake/elog.c
index dee93d8..1332e2d 100644
--- a/src/soc/intel/skylake/elog.c
+++ b/src/soc/intel/skylake/elog.c
@@ -34,33 +34,22 @@
#define PME_STS_BIT (1 << 15)
-static void pch_log_add_elog_event(const struct pme_status_info *info)
-{
- /*
- * If wake source is XHCI, check for detailed wake source events on
- * USB2/3 ports.
- */
- if ((info->devfn == PCH_DEVFN_XHCI) &&
- pch_xhci_update_wake_event(soc_get_xhci_usb_info()))
- return;
-
- elog_add_event_wake(info->elog_event, 0);
-}
-
static void pch_log_pme_internal_wake_source(void)
{
size_t i;
uint16_t val;
bool dev_found = false;
- struct pme_status_info pme_status_info[] = {
+ const struct pme_status_info pme_status_info[] = {
{ PCH_DEVFN_HDA, 0x54, ELOG_WAKE_SOURCE_PME_HDA },
{ PCH_DEVFN_GBE, 0xcc, ELOG_WAKE_SOURCE_PME_GBE },
{ PCH_DEVFN_SATA, 0x74, ELOG_WAKE_SOURCE_PME_SATA },
{ PCH_DEVFN_CSE, 0x54, ELOG_WAKE_SOURCE_PME_CSE },
- { PCH_DEVFN_XHCI, 0x74, ELOG_WAKE_SOURCE_PME_XHCI },
{ PCH_DEVFN_USBOTG, 0x84, ELOG_WAKE_SOURCE_PME_XDCI },
};
+ const struct xhci_wake_info xhci_wake_info[] = {
+ { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
+ };
for (i = 0; i < ARRAY_SIZE(pme_status_info); i++) {
pci_devfn_t dev = PCI_DEV(0, PCI_SLOT(pme_status_info[i].devfn),
@@ -71,19 +60,20 @@
if ((val == 0xFFFF) || !(val & PME_STS_BIT))
continue;
- pch_log_add_elog_event(&pme_status_info[i]);
+ elog_add_event_wake(pme_status_info[i].elog_event, 0);
dev_found = true;
}
/*
- * If device is still not found, but the wake source is internal PME,
- * try probing XHCI ports to see if any of the USB2/3 ports indicate
- * that it was the wake source. This path would be taken in case of GSMI
- * logging with S0ix where the pci_pm_resume_noirq runs and clears the
- * PME_STS_BIT in controller register.
+ * Check the XHCI controllers' USB2 & USB3 ports for wake events. There
+ * are cases (GSMI logging for S0ix clears PME_STS_BIT) where the XHCI
+ * controller's PME_STS_BIT may have already been cleared, so the host
+ * controller wake wouldn't get logged here; therefore, the host
+ * controller wake event is logged before its corresponding port wake
+ * event is logged.
*/
- if (!dev_found)
- dev_found = pch_xhci_update_wake_event(soc_get_xhci_usb_info());
+ dev_found |= xhci_update_wake_event(xhci_wake_info,
+ ARRAY_SIZE(xhci_wake_info));
if (!dev_found)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
@@ -137,7 +127,7 @@
* Linux kernel uses PME STS bit information. So do not clear
* this bit.
*/
- pch_log_add_elog_event(&pme_status_info[i]);
+ elog_add_event_wake(pme_status_info[i].elog_event, 0);
}
}
diff --git a/src/soc/intel/skylake/xhci.c b/src/soc/intel/skylake/xhci.c
index 048f1f0..66edb3d 100644
--- a/src/soc/intel/skylake/xhci.c
+++ b/src/soc/intel/skylake/xhci.c
@@ -1,5 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <device/pci_type.h>
#include <intelblocks/xhci.h>
#define XHCI_USB2_PORT_STATUS_REG 0x480
@@ -14,7 +15,7 @@
.num_usb3_ports = XHCI_USB3_PORT_NUM,
};
-const struct xhci_usb_info *soc_get_xhci_usb_info(void)
+const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
{
return &usb_info;
}
diff --git a/src/soc/intel/tigerlake/elog.c b/src/soc/intel/tigerlake/elog.c
index 88324d6..531f5c1 100644
--- a/src/soc/intel/tigerlake/elog.c
+++ b/src/soc/intel/tigerlake/elog.c
@@ -57,54 +57,45 @@
}
}
-static void pch_log_add_elog_event(const struct pme_map *ipme_map)
-{
- /*
- * If wake source is XHCI, check for detailed wake source events on
- * USB2/3 ports.
- */
- if ((ipme_map->devfn == PCH_DEVFN_XHCI) &&
- pch_xhci_update_wake_event(soc_get_xhci_usb_info()))
- return;
-
- elog_add_event_wake(ipme_map->wake_source, 0);
-}
-
static void pch_log_pme_internal_wake_source(void)
{
- size_t i;
- bool dev_found = false;
-
const struct pme_map ipme_map[] = {
{ PCH_DEVFN_HDA, ELOG_WAKE_SOURCE_PME_HDA },
{ PCH_DEVFN_GBE, ELOG_WAKE_SOURCE_PME_GBE },
{ PCH_DEVFN_SATA, ELOG_WAKE_SOURCE_PME_SATA },
{ PCH_DEVFN_CSE, ELOG_WAKE_SOURCE_PME_CSE },
- { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
{ PCH_DEVFN_USBOTG, ELOG_WAKE_SOURCE_PME_XDCI },
{ PCH_DEVFN_CNVI_WIFI, ELOG_WAKE_SOURCE_PME_WIFI },
};
+ const struct xhci_wake_info xhci_wake_info[] = {
+ { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
+ { SA_DEVFN_TCSS_XHCI, ELOG_WAKE_SOURCE_PME_TCSS_XHCI },
+ };
+ bool dev_found = false;
+ size_t i;
for (i = 0; i < ARRAY_SIZE(ipme_map); i++) {
- const struct device *dev = pcidev_path_on_root(ipme_map[i].devfn);
+ const struct device *dev =
+ pcidev_path_on_root(ipme_map[i].devfn);
if (!dev)
continue;
if (pci_dev_is_wake_source(dev)) {
- pch_log_add_elog_event(&ipme_map[i]);
+ elog_add_event_wake(ipme_map[i].wake_source, 0);
dev_found = true;
}
}
/*
- * If device is still not found, but the wake source is internal PME,
- * try probing XHCI ports to see if any of the USB2/3 ports indicate
- * that it was the wake source. This path would be taken in case of GSMI
- * logging with S0ix where the pci_pm_resume_noirq runs and clears the
- * PME_STS_BIT in controller register.
+ * Check the XHCI controllers' USB2 & USB3 ports for wake events. There
+ * are cases (GSMI logging for S0ix clears PME_STS_BIT) where the XHCI
+ * controller's PME_STS_BIT may have already been cleared, so the host
+ * controller wake wouldn't get logged here; therefore, the host
+ * controller wake event is logged before its corresponding port wake
+ * event is logged.
*/
- if (!dev_found)
- dev_found = pch_xhci_update_wake_event(soc_get_xhci_usb_info());
+ dev_found |= xhci_update_wake_event(xhci_wake_info,
+ ARRAY_SIZE(xhci_wake_info));
if (!dev_found)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
diff --git a/src/soc/intel/tigerlake/xhci.c b/src/soc/intel/tigerlake/xhci.c
index 18bb129..6f095fa 100644
--- a/src/soc/intel/tigerlake/xhci.c
+++ b/src/soc/intel/tigerlake/xhci.c
@@ -1,20 +1,39 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <device/pci_type.h>
#include <intelblocks/xhci.h>
+#include <soc/pci_devs.h>
-#define XHCI_USB2_PORT_STATUS_REG 0x480
-#define XHCI_USB3_PORT_STATUS_REG 0x520
-#define XHCI_USB2_PORT_NUM 10
-#define XHCI_USB3_PORT_NUM 4
+#define PCH_XHCI_USB2_PORT_STATUS_REG 0x480
+#define PCH_XHCI_USB3_PORT_STATUS_REG 0x520
+#define PCH_XHCI_USB2_PORT_NUM 10
+#define PCH_XHCI_USB3_PORT_NUM 4
-static const struct xhci_usb_info usb_info = {
- .usb2_port_status_reg = XHCI_USB2_PORT_STATUS_REG,
- .num_usb2_ports = XHCI_USB2_PORT_NUM,
- .usb3_port_status_reg = XHCI_USB3_PORT_STATUS_REG,
- .num_usb3_ports = XHCI_USB3_PORT_NUM,
+#define TCSS_XHCI_USB2_PORT_STATUS_REG 0x480
+#define TCSS_XHCI_USB3_PORT_STATUS_REG 0x490
+#define TCSS_XHCI_USB2_PORT_NUM 1
+#define TCSS_XHCI_USB3_PORT_NUM 4
+
+static const struct xhci_usb_info pch_usb_info = {
+ .usb2_port_status_reg = PCH_XHCI_USB2_PORT_STATUS_REG,
+ .num_usb2_ports = PCH_XHCI_USB2_PORT_NUM,
+ .usb3_port_status_reg = PCH_XHCI_USB3_PORT_STATUS_REG,
+ .num_usb3_ports = PCH_XHCI_USB3_PORT_NUM,
};
-const struct xhci_usb_info *soc_get_xhci_usb_info(void)
+static const struct xhci_usb_info tcss_usb_info = {
+ .usb2_port_status_reg = TCSS_XHCI_USB2_PORT_STATUS_REG,
+ .num_usb2_ports = TCSS_XHCI_USB2_PORT_NUM,
+ .usb3_port_status_reg = TCSS_XHCI_USB3_PORT_STATUS_REG,
+ .num_usb3_ports = TCSS_XHCI_USB3_PORT_NUM,
+};
+
+const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
{
- return &usb_info;
+ if (xhci_dev == PCH_DEVFN_XHCI)
+ return &pch_usb_info;
+ else if (xhci_dev == SA_DEVFN_TCSS_XHCI)
+ return &tcss_usb_info;
+
+ return NULL;
}