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| author | Dave Airlie <airlied@redhat.com> | 2026-09-26 07:57:59 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2026-09-26 07:58:24 +1000 |
| commit | a9ed3aa9b87ee41e8ab3ff471b1331c154767e45 (patch) | |
| tree | cc62d74e0eb4905246978674461e78e2f9df2afd /Documentation/ABI/testing/debugfs-tpmi | |
| download | linux-stable-a9ed3aa9b87ee41e8ab3ff471b1331c154767e45.tar.gz linux-stable-a9ed3aa9b87ee41e8ab3ff471b1331c154767e45.zip | |
Merge tag 'drm-misc-fixes-2026-09-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixesgrafted
A number of fixes:
- bridge:
- samsung-dsim: fix GPIO lifetime
- client: Null pointer dereference fix
- imagination: error handling fix, page handling fix
- nouveau: fix reference leaks, double-frees, out-of-bounds accesses,
use-after-frees, don't reject config without SCDC, a number of
workarounds
- virtio: fix memory leak, reference leaks, null pointer dereference,
add pixel blend mode, cache coherency fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <self@mripard.dev>
Link: https://patch.msgid.link/arU22zzqUGDEco1y@houat
Diffstat (limited to 'Documentation/ABI/testing/debugfs-tpmi')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-tpmi | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-tpmi b/Documentation/ABI/testing/debugfs-tpmi new file mode 100644 index 000000000..c493a1403 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-tpmi @@ -0,0 +1,40 @@ +What: /sys/kernel/debug/tpmi-<n>/pfs_dump +Date: November 2023 +KernelVersion: 6.6 +Contact: srinivas.pandruvada@linux.intel.com +Description: +The PFS (PM Feature Structure) table, shows details of each power +management feature. This includes: +tpmi_id, number of entries, entry size, offset, vsec offset, lock status +and disabled status. +Users: Debugging, any user space test suite + +What: /sys/kernel/debug/tpmi-<n>/tpmi-id-<n>/mem_dump +Date: November 2023 +KernelVersion: 6.6 +Contact: srinivas.pandruvada@linux.intel.com +Description: +Shows the memory dump of the MMIO region for a TPMI ID. +Users: Debugging, any user space test suite + +What: /sys/kernel/debug/tpmi-<n>/tpmi-id-<n>/mem_write +Date: November 2023 +KernelVersion: 6.6 +Contact: srinivas.pandruvada@linux.intel.com +Description: +Allows to write at any offset. It doesn't check for Read/Write access +as hardware will not allow to write at read-only memory. This write is +at offset multiples of 4. The format is instance,offset,contents. +Example: +echo 0,0x20,0xff > mem_write +echo 1,64,64 > mem_write +Users: Debugging, any user space test suite + +What: /sys/kernel/debug/tpmi-<n>/plr/domain<n>/status +Date: Aug 2024 +KernelVersion: 6.11 +Contact: Tero Kristo <tero.kristo@linux.intel.com> +Description: +Shows the currently active Performance Limit Reasons for die level and the +individual CPUs under the die. The contents of this file are sticky, and +clearing all the statuses can be done by writing "0\n" to this file. |