diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-13 15:39:15 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-13 15:39:15 -0800 |
| commit | f50822fd8675c68d294e89bd102f7b487ca3acd3 (patch) | |
| tree | 75d0db9313494a2ede74761d5ff712e3c547ff37 /drivers/crypto | |
| parent | 1b49e363252632d0493546511a41a65ed1a6fbbb (diff) | |
| parent | 5a5203a45b063a594e89a2aeaf9e4923893a5b4c (diff) | |
Merge tag 'platform-drivers-x86-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
"Highlights:
- amd/pmf:
- Avoid overwriting BIOS input values when events occur rapidly
- Fix PMF driver issues related to S4 (in part on crypto/ccp side)
- Add NPU metrics API (for accel side consumers)
- Allow disabling Smart PC function through a module parameter
- asus-wmi & HID/asus:
- Unification of backlight control (replaces quirks)
- Support multiple interfaces for controlling keyboard/RGB brightness
- Simplify init sequence
- hp-wmi:
- Add manual fan control for Victus S models
- Add fan mode keep-alive
- Fix platform profile values for Omen 16-wf1xxx
- Add EC offset to get the thermal profile
- intel/pmc: Show substate residencies also for non-primary PMCs
- intel/ISST:
- Store and restore data for all domains
- Write interface improvements
- lenovo-wmi:
- Support multiple Capability Data
- Add HWMON reporting and tuning support
- mellanox/mlx-platform: Add HI173 & HI174 support
- surface/aggregator_registry: Add Surface Pro 11 (QCOM)
- thinkpad_acpi: Add support for HW damage detection capability
- uniwill: Implement cTGP setting
- wmi:
- Introduce marshalling support
- Convert a few drivers to use the new buffer-based WMI API
- tools/power/x86/intel-speed-select: Allow read operations for non-root
- Miscellaneous cleanups / refactoring / improvements"
* tag 'platform-drivers-x86-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (68 commits)
platform/x86: lenovo-wmi-{capdata,other}: Fix HWMON channel visibility
platform/x86: hp-wmi: Add EC offsets to read Victus S thermal profile
platform: mellanox: mlx-platform: Add support DGX flavor of next-generation 800GB/s ethernet switch.
platform: mellanox: mlx-platform: Add support for new Nvidia DGX system based on class VMOD0010
HID: asus: add support for the asus-wmi brightness handler
platform/x86: asus-wmi: add keyboard brightness event handler
platform/x86: asus-wmi: remove unused keyboard backlight quirk
HID: asus: listen to the asus-wmi brightness device instead of creating one
platform/x86: asus-wmi: Add support for multiple kbd led handlers
HID: asus: early return for ROG devices
HID: asus: move vendor initialization to probe
HID: asus: fortify keyboard handshake
HID: asus: use same report_id in response
HID: asus: initialize additional endpoints only for certain devices
HID: asus: simplify RGB init sequence
platform/wmi: string-kunit: Add missing oversized string test case
platform/x86/amd/pmf: Added a module parameter to disable the Smart PC function
platform/x86/uniwill: Implement cTGP setting
platform/x86: uniwill-laptop: Introduce device descriptor system
platform/x86/amd: Use scope-based cleanup for wbrf_record()
...
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/ccp/psp-dev.c | 11 | ||||
| -rw-r--r-- | drivers/crypto/ccp/sp-dev.c | 12 | ||||
| -rw-r--r-- | drivers/crypto/ccp/sp-dev.h | 3 | ||||
| -rw-r--r-- | drivers/crypto/ccp/sp-pci.c | 16 | ||||
| -rw-r--r-- | drivers/crypto/ccp/tee-dev.c | 56 | ||||
| -rw-r--r-- | drivers/crypto/ccp/tee-dev.h | 1 |
6 files changed, 86 insertions, 13 deletions
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 9e21da0e298a..5c7f7e02a7d8 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -351,6 +351,17 @@ struct psp_device *psp_get_master_device(void) return sp ? sp->psp_data : NULL; } +int psp_restore(struct sp_device *sp) +{ + struct psp_device *psp = sp->psp_data; + int ret = 0; + + if (psp->tee_data) + ret = tee_restore(psp); + + return ret; +} + void psp_pci_init(void) { psp_master = psp_get_master_device(); diff --git a/drivers/crypto/ccp/sp-dev.c b/drivers/crypto/ccp/sp-dev.c index 3467f6db4f50..f204aa5df96e 100644 --- a/drivers/crypto/ccp/sp-dev.c +++ b/drivers/crypto/ccp/sp-dev.c @@ -230,6 +230,18 @@ int sp_resume(struct sp_device *sp) return 0; } +int sp_restore(struct sp_device *sp) +{ + if (sp->psp_data) { + int ret = psp_restore(sp); + + if (ret) + return ret; + } + + return sp_resume(sp); +} + struct sp_device *sp_get_psp_master_device(void) { struct sp_device *i, *ret = NULL; diff --git a/drivers/crypto/ccp/sp-dev.h b/drivers/crypto/ccp/sp-dev.h index 1335a83fe052..a83751cfd006 100644 --- a/drivers/crypto/ccp/sp-dev.h +++ b/drivers/crypto/ccp/sp-dev.h @@ -141,6 +141,7 @@ void sp_destroy(struct sp_device *sp); int sp_suspend(struct sp_device *sp); int sp_resume(struct sp_device *sp); +int sp_restore(struct sp_device *sp); int sp_request_ccp_irq(struct sp_device *sp, irq_handler_t handler, const char *name, void *data); void sp_free_ccp_irq(struct sp_device *sp, void *data); @@ -174,6 +175,7 @@ int psp_dev_init(struct sp_device *sp); void psp_pci_init(void); void psp_dev_destroy(struct sp_device *sp); void psp_pci_exit(void); +int psp_restore(struct sp_device *sp); #else /* !CONFIG_CRYPTO_DEV_SP_PSP */ @@ -181,6 +183,7 @@ static inline int psp_dev_init(struct sp_device *sp) { return 0; } static inline void psp_pci_init(void) { } static inline void psp_dev_destroy(struct sp_device *sp) { } static inline void psp_pci_exit(void) { } +static inline int psp_restore(struct sp_device *sp) { return 0; } #endif /* CONFIG_CRYPTO_DEV_SP_PSP */ diff --git a/drivers/crypto/ccp/sp-pci.c b/drivers/crypto/ccp/sp-pci.c index 8891ceee1d7d..6ac805d99ccb 100644 --- a/drivers/crypto/ccp/sp-pci.c +++ b/drivers/crypto/ccp/sp-pci.c @@ -353,6 +353,13 @@ static int __maybe_unused sp_pci_resume(struct device *dev) return sp_resume(sp); } +static int __maybe_unused sp_pci_restore(struct device *dev) +{ + struct sp_device *sp = dev_get_drvdata(dev); + + return sp_restore(sp); +} + #ifdef CONFIG_CRYPTO_DEV_SP_PSP static const struct sev_vdata sevv1 = { .cmdresp_reg = 0x10580, /* C2PMSG_32 */ @@ -563,7 +570,14 @@ static const struct pci_device_id sp_pci_table[] = { }; MODULE_DEVICE_TABLE(pci, sp_pci_table); -static SIMPLE_DEV_PM_OPS(sp_pci_pm_ops, sp_pci_suspend, sp_pci_resume); +static const struct dev_pm_ops sp_pci_pm_ops = { + .suspend = pm_sleep_ptr(sp_pci_suspend), + .resume = pm_sleep_ptr(sp_pci_resume), + .freeze = pm_sleep_ptr(sp_pci_suspend), + .thaw = pm_sleep_ptr(sp_pci_resume), + .poweroff = pm_sleep_ptr(sp_pci_suspend), + .restore_early = pm_sleep_ptr(sp_pci_restore), +}; static struct pci_driver sp_pci_driver = { .name = "ccp", diff --git a/drivers/crypto/ccp/tee-dev.c b/drivers/crypto/ccp/tee-dev.c index 5e1d80724678..92ffa412622a 100644 --- a/drivers/crypto/ccp/tee-dev.c +++ b/drivers/crypto/ccp/tee-dev.c @@ -86,10 +86,34 @@ static inline void tee_free_cmd_buffer(struct tee_init_ring_cmd *cmd) kfree(cmd); } +static bool tee_send_destroy_cmd(struct psp_tee_device *tee) +{ + unsigned int reg; + int ret; + + ret = psp_mailbox_command(tee->psp, PSP_CMD_TEE_RING_DESTROY, NULL, + TEE_DEFAULT_CMD_TIMEOUT, ®); + if (ret) { + dev_err(tee->dev, "tee: ring destroy command timed out, disabling TEE support\n"); + psp_dead = true; + return false; + } + + if (FIELD_GET(PSP_CMDRESP_STS, reg)) { + dev_err(tee->dev, "tee: ring destroy command failed (%#010lx)\n", + FIELD_GET(PSP_CMDRESP_STS, reg)); + psp_dead = true; + return false; + } + + return true; +} + static int tee_init_ring(struct psp_tee_device *tee) { int ring_size = MAX_RING_BUFFER_ENTRIES * sizeof(struct tee_ring_cmd); struct tee_init_ring_cmd *cmd; + bool retry = false; unsigned int reg; int ret; @@ -112,6 +136,7 @@ static int tee_init_ring(struct psp_tee_device *tee) /* Send command buffer details to Trusted OS by writing to * CPU-PSP message registers */ +retry_init: ret = psp_mailbox_command(tee->psp, PSP_CMD_TEE_RING_INIT, cmd, TEE_DEFAULT_CMD_TIMEOUT, ®); if (ret) { @@ -122,9 +147,22 @@ static int tee_init_ring(struct psp_tee_device *tee) } if (FIELD_GET(PSP_CMDRESP_STS, reg)) { + /* + * During the hibernate resume sequence driver may have gotten loaded + * but the ring not properly destroyed. If the ring doesn't work, try + * to destroy and re-init once. + */ + if (!retry && FIELD_GET(PSP_CMDRESP_STS, reg) == PSP_TEE_STS_RING_BUSY) { + dev_info(tee->dev, "tee: ring init command failed with busy status, retrying\n"); + if (tee_send_destroy_cmd(tee)) { + retry = true; + goto retry_init; + } + } dev_err(tee->dev, "tee: ring init command failed (%#010lx)\n", FIELD_GET(PSP_CMDRESP_STS, reg)); tee_free_ring(tee); + psp_dead = true; ret = -EIO; } @@ -136,24 +174,13 @@ free_buf: static void tee_destroy_ring(struct psp_tee_device *tee) { - unsigned int reg; - int ret; - if (!tee->rb_mgr.ring_start) return; if (psp_dead) goto free_ring; - ret = psp_mailbox_command(tee->psp, PSP_CMD_TEE_RING_DESTROY, NULL, - TEE_DEFAULT_CMD_TIMEOUT, ®); - if (ret) { - dev_err(tee->dev, "tee: ring destroy command timed out, disabling TEE support\n"); - psp_dead = true; - } else if (FIELD_GET(PSP_CMDRESP_STS, reg)) { - dev_err(tee->dev, "tee: ring destroy command failed (%#010lx)\n", - FIELD_GET(PSP_CMDRESP_STS, reg)); - } + tee_send_destroy_cmd(tee); free_ring: tee_free_ring(tee); @@ -365,3 +392,8 @@ int psp_check_tee_status(void) return 0; } EXPORT_SYMBOL(psp_check_tee_status); + +int tee_restore(struct psp_device *psp) +{ + return tee_init_ring(psp->tee_data); +} diff --git a/drivers/crypto/ccp/tee-dev.h b/drivers/crypto/ccp/tee-dev.h index ea9a2b7c05f5..c23416cb7bb3 100644 --- a/drivers/crypto/ccp/tee-dev.h +++ b/drivers/crypto/ccp/tee-dev.h @@ -111,5 +111,6 @@ struct tee_ring_cmd { int tee_dev_init(struct psp_device *psp); void tee_dev_destroy(struct psp_device *psp); +int tee_restore(struct psp_device *psp); #endif /* __TEE_DEV_H__ */ |
