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| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2023-01-31 23:36:39 +0100 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-19 18:27:48 -0500 |
| commit | 77775e24e684c761d44ba2f804581c0c42e0ad38 (patch) | |
| tree | f99e45d1a1db81252bc395ed454221216115bff6 /drivers/gpu | |
| parent | 50a48cca608102a53a0961bd95aefb53a8ced3ab (diff) | |
| download | linux-stable-77775e24e684c761d44ba2f804581c0c42e0ad38.tar.gz linux-stable-77775e24e684c761d44ba2f804581c0c42e0ad38.tar.bz2 linux-stable-77775e24e684c761d44ba2f804581c0c42e0ad38.zip | |
drm/xe: Add debugfs for dumping GGTT mappings
Adding a debugfs dump of GGTT was useful for some debugging I did,
and easy to add. Might be useful for others too.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_ggtt.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_ggtt.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_debugfs.c | 10 |
3 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c index 20450ed8400b..907a603572b2 100644 --- a/drivers/gpu/drm/xe/xe_ggtt.c +++ b/drivers/gpu/drm/xe/xe_ggtt.c @@ -345,3 +345,16 @@ void xe_ggtt_remove_bo(struct xe_ggtt *ggtt, struct xe_bo *bo) xe_ggtt_remove_node(ggtt, &bo->ggtt_node); } + +int xe_ggtt_dump(struct xe_ggtt *ggtt, struct drm_printer *p) +{ + int err; + + err = mutex_lock_interruptible(&ggtt->lock); + if (err) + return err; + + drm_mm_print(&ggtt->mm, p); + mutex_unlock(&ggtt->lock); + return err; +} diff --git a/drivers/gpu/drm/xe/xe_ggtt.h b/drivers/gpu/drm/xe/xe_ggtt.h index ab9cfdab5cca..3469aa2b1a02 100644 --- a/drivers/gpu/drm/xe/xe_ggtt.h +++ b/drivers/gpu/drm/xe/xe_ggtt.h @@ -8,6 +8,8 @@ #include "xe_ggtt_types.h" +struct drm_printer; + u64 xe_ggtt_pte_encode(struct xe_bo *bo, u64 bo_offset); void xe_ggtt_set_pte(struct xe_ggtt *ggtt, u64 addr, u64 pte); void xe_ggtt_invalidate(struct xe_gt *gt); @@ -26,4 +28,6 @@ int xe_ggtt_insert_bo(struct xe_ggtt *ggtt, struct xe_bo *bo); int xe_ggtt_insert_bo_at(struct xe_ggtt *ggtt, struct xe_bo *bo, u64 ofs); void xe_ggtt_remove_bo(struct xe_ggtt *ggtt, struct xe_bo *bo); +int xe_ggtt_dump(struct xe_ggtt *ggtt, struct drm_printer *p); + #endif diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c index daae42d3ab3b..c320e58810ce 100644 --- a/drivers/gpu/drm/xe/xe_gt_debugfs.c +++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c @@ -8,6 +8,7 @@ #include "xe_device.h" #include "xe_force_wake.h" +#include "xe_ggtt.h" #include "xe_gt.h" #include "xe_gt_debugfs.h" #include "xe_gt_mcr.h" @@ -88,12 +89,21 @@ static int steering(struct seq_file *m, void *data) return 0; } +static int ggtt(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + struct drm_printer p = drm_seq_file_printer(m); + + return xe_ggtt_dump(gt->mem.ggtt, &p); +} + static const struct drm_info_list debugfs_list[] = { {"hw_engines", hw_engines, 0}, {"force_reset", force_reset, 0}, {"sa_info", sa_info, 0}, {"topology", topology, 0}, {"steering", steering, 0}, + {"ggtt", ggtt, 0}, }; void xe_gt_debugfs_register(struct xe_gt *gt) |