PMU: phytium: update phytium PMUcontroller driver support to 6.6.0.4

[zhangfuxiang123]

This patches updates the support for phytium PMU controller driver.

1. Added some functional improvements for PCIe PMU.
2. Added some functional improvements for DDR PMU.
3. Add DDR PMU Support for PS240XX.
4. Add PCIe PMU Support for PS240XX.
5. Add DDR PMU Support for PD2408 SoCs
6. Modify the name of DMU PMU cycles event.
7. Modify the name of DDR PMU cycles event.
8. Modify the name of PCIe PMU cycles event.
9. Fix issue with PS23X00 DDR PMU on PBF < 1.20.
10. Fix issue in dmu pmu driver when cpu is offlined
11. Rename DDR PMU event names
12. Add driver support for PCIe PMU v2.0
13. Add a unified driver support for DDR PMU
14. Add driver support for PCIe Link
15. Add driver support for MSI PMU
16. Bugfix DDR PMU driver count error
17. Fix PCIe PMU driver compile failure
18. Modify the enable logic of time mode

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[Copilot]

Pull request overview

This PR updates the Phytium PMU controller support to a newer driver version, expanding PCIe PMU functionality (including v2.0 support) and adding new PMU drivers for PCIe Link and MSI monitoring, along with build/metadata updates.

Changes:

• Refactors/enhances phytium_pcie_pmu to support additional hardware versions and expanded event sets.
• Adds new PMU drivers: PCIe Link PMU and MSI PMU.
• Updates Kconfig/Makefile and MAINTAINERS to integrate the new drivers.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 13 comments.

Show a summary per file

File	Description
MAINTAINERS	Adds the new Phytium perf driver source files to the Phytium maintainer file list.
drivers/perf/phytium/phytium_pcie_pmu.c	Major PCIe PMU update: versioning, v1/v2 handling, expanded events, new configuration logic, IRQ handling adjustments.
drivers/perf/phytium/phytium_pcie_link_pmu.c	New PCIe Link PMU driver exposing link/TLP/DLLP/buffer-related counters via perf/sysfs.
drivers/perf/phytium/phytium_msi_pmu.c	New MSI PMU driver with perf integration, reqid filtering/timer configuration, and IRQ overflow handling.
drivers/perf/phytium/Makefile	Builds the new PCIe Link PMU and MSI PMU objects under new Kconfig symbols.
drivers/perf/phytium/Kconfig	Adds Kconfig options for PCIe Link PMU and MSI PMU; restructures/extends DDR PMU config.

Comments suppressed due to low confidence (1)

drivers/perf/phytium/phytium_pcie_pmu.c:1404

• phytium_pcie_pmu_event_add() applies set_event_config() (writes HW config) before checking whether the event can be allocated (phytium_pcie_pmu_mark_event). If mark_event returns -EAGAIN/-ENODEV, the function exits with hardware reconfigured, potentially disrupting existing events. Allocate/validate the event first, then program hardware (or roll back on failure).

	hwc->state |= PERF_HES_STOPPED;
	pcie_pmu->ops->get_event_config(event, pcie_pmu);
	ret = pcie_pmu->ops->set_event_config(event, pcie_pmu);
	if (ret < 0)
		return ret;

	idx = phytium_pcie_pmu_mark_event(event);
	if (idx < 0)
		return idx;

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