git: 4cb3cb2de206 - main - LinuxKPI: Add pci_power querying for drm-kmod
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Date: Thu, 06 Oct 2022 08:16:43 UTC
The branch main has been updated by manu: URL: https://cgit.FreeBSD.org/src/commit/?id=4cb3cb2de2065bccbab65b0139c1be65f1da3fdf commit 4cb3cb2de2065bccbab65b0139c1be65f1da3fdf Author: Jake Freeland <jfree@FreeBSD.org> AuthorDate: 2022-10-06 08:15:41 +0000 Commit: Emmanuel Vadot <manu@FreeBSD.org> CommitDate: 2022-10-06 08:15:41 +0000 LinuxKPI: Add pci_power querying for drm-kmod Adds a few struct members and a function to get i915_runtime_pm_status() to compile in drm-kmod. Differential Revision: https://reviews.freebsd.org/D36749 Sponsored by: Google, Inc. (GSoC 2022) --- sys/compat/linuxkpi/common/include/linux/device.h | 2 ++ sys/compat/linuxkpi/common/include/linux/pci.h | 14 ++++++++++++++ sys/compat/linuxkpi/common/include/linux/pm.h | 6 ++++++ sys/compat/linuxkpi/common/src/linux_pci.c | 4 ++++ 4 files changed, 26 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/device.h b/sys/compat/linuxkpi/common/include/linux/device.h index 32195ad5b0a6..f3e2c4697562 100644 --- a/sys/compat/linuxkpi/common/include/linux/device.h +++ b/sys/compat/linuxkpi/common/include/linux/device.h @@ -127,6 +127,8 @@ struct device { spinlock_t devres_lock; struct list_head devres_head; + + struct dev_pm_info power; }; extern struct device linux_root_device; diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h index 34076e0ff1d5..775bac72a145 100644 --- a/sys/compat/linuxkpi/common/include/linux/pci.h +++ b/sys/compat/linuxkpi/common/include/linux/pci.h @@ -202,6 +202,8 @@ typedef int pci_power_t; #define PCI_POWER_ERROR PCI_POWERSTATE_UNKNOWN +extern const char *pci_power_names[6]; + #define PCI_ERR_ROOT_COMMAND PCIR_AER_ROOTERR_CMD #define PCI_ERR_ROOT_ERR_SRC PCIR_AER_COR_SOURCE_ID @@ -288,6 +290,7 @@ struct pci_dev { struct pci_driver *pdrv; struct pci_bus *bus; struct pci_dev *root; + pci_power_t current_state; uint16_t device; uint16_t vendor; uint16_t subsystem_vendor; @@ -1576,6 +1579,17 @@ pci_ignore_hotplug(struct pci_dev *pdev) { } +static inline const char * +pci_power_name(pci_power_t state) +{ + int pstate = state + 1; + + if (pstate >= 0 && pstate < nitems(pci_power_names)) + return (pci_power_names[pstate]); + else + return (pci_power_names[0]); +} + static inline int pcie_get_readrq(struct pci_dev *dev) { diff --git a/sys/compat/linuxkpi/common/include/linux/pm.h b/sys/compat/linuxkpi/common/include/linux/pm.h index d67cebb9764a..d054a95f17a3 100644 --- a/sys/compat/linuxkpi/common/include/linux/pm.h +++ b/sys/compat/linuxkpi/common/include/linux/pm.h @@ -33,6 +33,8 @@ #ifndef _LINUXKPI_LINUX_PM_H #define _LINUXKPI_LINUX_PM_H +#include <asm/atomic.h> + /* Needed but breaks linux_usb.c */ /* #include <linux/completion.h> */ /* #include <linux/wait.h> */ @@ -44,6 +46,10 @@ typedef struct pm_message { struct dev_pm_domain { }; +struct dev_pm_info { + atomic_t usage_count; +}; + #define PM_EVENT_FREEZE 0x0001 #define PM_EVENT_SUSPEND 0x0002 diff --git a/sys/compat/linuxkpi/common/src/linux_pci.c b/sys/compat/linuxkpi/common/src/linux_pci.c index aaa6d646f04d..aab4bfb6650d 100644 --- a/sys/compat/linuxkpi/common/src/linux_pci.c +++ b/sys/compat/linuxkpi/common/src/linux_pci.c @@ -117,6 +117,10 @@ static device_method_t pci_methods[] = { DEVMETHOD_END }; +const char *pci_power_names[] = { + "UNKNOWN", "D0", "D1", "D2", "D3hot", "D3cold" +}; + struct linux_dma_priv { uint64_t dma_mask; bus_dma_tag_t dmat;