diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | drivers/pci/trace.c | 1 | ||||
| -rw-r--r-- | include/trace/events/pci_controller.h | 58 |
3 files changed, 60 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 55af015174a5..b5a83f0b4211 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20399,6 +20399,7 @@ F: Documentation/devicetree/bindings/pci/ F: drivers/pci/controller/ F: drivers/pci/pci-bridge-emul.c F: drivers/pci/pci-bridge-emul.h +F: include/trace/events/pci_controller.h PCI PEER-TO-PEER DMA (P2PDMA) M: Bjorn Helgaas <bhelgaas@google.com> diff --git a/drivers/pci/trace.c b/drivers/pci/trace.c index cf11abca8602..c1da9d3d39d6 100644 --- a/drivers/pci/trace.c +++ b/drivers/pci/trace.c @@ -9,3 +9,4 @@ #define CREATE_TRACE_POINTS #include <trace/events/pci.h> +#include <trace/events/pci_controller.h> diff --git a/include/trace/events/pci_controller.h b/include/trace/events/pci_controller.h new file mode 100644 index 000000000000..a4b387cf52a6 --- /dev/null +++ b/include/trace/events/pci_controller.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM pci_controller + +#if !defined(_TRACE_HW_EVENT_PCI_CONTROLLER_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HW_EVENT_PCI_CONTROLLER_H + +#include <uapi/linux/pci_regs.h> +#include <linux/tracepoint.h> + +#define RATE \ + EM(PCIE_SPEED_2_5GT, "2.5 GT/s") \ + EM(PCIE_SPEED_5_0GT, "5.0 GT/s") \ + EM(PCIE_SPEED_8_0GT, "8.0 GT/s") \ + EM(PCIE_SPEED_16_0GT, "16.0 GT/s") \ + EM(PCIE_SPEED_32_0GT, "32.0 GT/s") \ + EM(PCIE_SPEED_64_0GT, "64.0 GT/s") \ + EMe(PCI_SPEED_UNKNOWN, "Unknown") + + +#undef EM +#undef EMe +#define EM(a, b) TRACE_DEFINE_ENUM(a); +#define EMe(a, b) TRACE_DEFINE_ENUM(a); + +RATE + +#undef EM +#undef EMe +#define EM(a, b) {a, b}, +#define EMe(a, b) {a, b} + +TRACE_EVENT(pcie_ltssm_state_transition, + TP_PROTO(const char *dev_name, const char *state, u32 rate), + TP_ARGS(dev_name, state, rate), + + TP_STRUCT__entry( + __string(dev_name, dev_name) + __string(state, state) + __field(u32, rate) + ), + + TP_fast_assign( + __assign_str(dev_name); + __assign_str(state); + __entry->rate = rate; + ), + + TP_printk("dev: %s state: %s rate: %s", + __get_str(dev_name), __get_str(state), + __print_symbolic(__entry->rate, RATE) + ) +); + +#endif /* _TRACE_HW_EVENT_PCI_CONTROLLER_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |