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| author | Lucas De Marchi <lucas.demarchi@intel.com> | 2025-08-21 09:17:56 -0700 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2025-08-22 11:46:43 -0700 |
| commit | efeb036ffd2a0d1c1afba3d74bd5965825d1a646 (patch) | |
| tree | 2634ce1cc946316b047df39ebccdee96cbd245f8 /drivers/gpu | |
| parent | drm/xe/pcode: Initialize data0 for pcode read routine (diff) | |
| download | linux-efeb036ffd2a0d1c1afba3d74bd5965825d1a646.tar.gz linux-efeb036ffd2a0d1c1afba3d74bd5965825d1a646.zip | |
drm/xe/psmi: Add GuC flag to enable PSMI
PSMI allows to capture data from the GPU useful for early
validation. From the kernel side there isn't much to be done, just a few
things:
1) Toggle the feature support in GuC
2) Enable some additional WAs
3) Allocate buffers
Here is the first step, with the next ones to follow. For now everything
is disabled through a check in configfs that is currently hardcoded to
disabled.
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://lore.kernel.org/r/20250821-psmi-v5-1-34ab7550d3d8@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_configfs.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_fwif.h | 1 |
3 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_configfs.h b/drivers/gpu/drm/xe/xe_configfs.h index fb8764008089..c14588b86e83 100644 --- a/drivers/gpu/drm/xe/xe_configfs.h +++ b/drivers/gpu/drm/xe/xe_configfs.h @@ -16,12 +16,14 @@ void xe_configfs_exit(void); bool xe_configfs_get_survivability_mode(struct pci_dev *pdev); void xe_configfs_clear_survivability_mode(struct pci_dev *pdev); u64 xe_configfs_get_engines_allowed(struct pci_dev *pdev); +static inline bool xe_configfs_get_psmi_enabled(struct pci_dev *pdev) { return false; } #else static inline int xe_configfs_init(void) { return 0; } static inline void xe_configfs_exit(void) { } static inline bool xe_configfs_get_survivability_mode(struct pci_dev *pdev) { return false; } static inline void xe_configfs_clear_survivability_mode(struct pci_dev *pdev) { } static inline u64 xe_configfs_get_engines_allowed(struct pci_dev *pdev) { return U64_MAX; } +static inline bool xe_configfs_get_psmi_enabled(struct pci_dev *pdev) { return false; } #endif #endif diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c index 433abc787f7b..883f700e532a 100644 --- a/drivers/gpu/drm/xe/xe_guc.c +++ b/drivers/gpu/drm/xe/xe_guc.c @@ -16,6 +16,7 @@ #include "regs/xe_guc_regs.h" #include "regs/xe_irq_regs.h" #include "xe_bo.h" +#include "xe_configfs.h" #include "xe_device.h" #include "xe_force_wake.h" #include "xe_gt.h" @@ -81,11 +82,15 @@ static u32 guc_ctl_debug_flags(struct xe_guc *guc) static u32 guc_ctl_feature_flags(struct xe_guc *guc) { + struct xe_device *xe = guc_to_xe(guc); u32 flags = GUC_CTL_ENABLE_LITE_RESTORE; - if (!guc_to_xe(guc)->info.skip_guc_pc) + if (!xe->info.skip_guc_pc) flags |= GUC_CTL_ENABLE_SLPC; + if (xe_configfs_get_psmi_enabled(to_pci_dev(xe->drm.dev))) + flags |= GUC_CTL_ENABLE_PSMI_LOGGING; + return flags; } diff --git a/drivers/gpu/drm/xe/xe_guc_fwif.h b/drivers/gpu/drm/xe/xe_guc_fwif.h index ca9f999d38d1..400004f1838a 100644 --- a/drivers/gpu/drm/xe/xe_guc_fwif.h +++ b/drivers/gpu/drm/xe/xe_guc_fwif.h @@ -112,6 +112,7 @@ struct guc_update_exec_queue_policy { #define GUC_CTL_FEATURE 2 #define GUC_CTL_ENABLE_SLPC BIT(2) #define GUC_CTL_ENABLE_LITE_RESTORE BIT(4) +#define GUC_CTL_ENABLE_PSMI_LOGGING BIT(7) #define GUC_CTL_DISABLE_SCHEDULER BIT(14) #define GUC_CTL_DEBUG 3 |