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| author | Maxime Ripard <maxime@cerno.tech> | 2022-07-13 10:33:00 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-07-13 10:33:00 +0200 |
| commit | 4de395f2c632c31c575f72d49d4f4389c99dab68 (patch) | |
| tree | 29abd2c05c697f2d6bde19c10064c49246253828 /Documentation/gpu | |
| parent | bbd60fee2d2166b2b8722cbad740996ef2e7ce40 (diff) | |
| parent | 0180290abb5ce5c870f84a00ffeda5802f641dce (diff) | |
| download | linux-4de395f2c632c31c575f72d49d4f4389c99dab68.tar.bz2 | |
Merge drm/drm-next into drm-misc-next
I need to have some vc4 patches merged in -rc4, but drm-misc-next is
only at -rc2 for now.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'Documentation/gpu')
| -rw-r--r-- | Documentation/gpu/drm-usage-stats.rst | 21 | ||||
| -rw-r--r-- | Documentation/gpu/i915.rst | 12 |
2 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/gpu/drm-usage-stats.rst b/Documentation/gpu/drm-usage-stats.rst index 6c9f166a8d6f..92c5117368d7 100644 --- a/Documentation/gpu/drm-usage-stats.rst +++ b/Documentation/gpu/drm-usage-stats.rst @@ -105,6 +105,27 @@ object belong to this client, in the respective memory region. Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB' indicating kibi- or mebi-bytes. +- drm-cycles-<str> <uint> + +Engine identifier string must be the same as the one specified in the +drm-engine-<str> tag and shall contain the number of busy cycles for the given +engine. + +Values are not required to be constantly monotonic if it makes the driver +implementation easier, but are required to catch up with the previously reported +larger value within a reasonable period. Upon observing a value lower than what +was previously read, userspace is expected to stay with that larger previous +value until a monotonic update is seen. + +- drm-maxfreq-<str> <uint> [Hz|MHz|KHz] + +Engine identifier string must be the same as the one specified in the +drm-engine-<str> tag and shall contain the maximum frequency for the given +engine. Taken together with drm-cycles-<str>, this can be used to calculate +percentage utilization of the engine, whereas drm-engine-<str> only reflects +time active without considering what frequency the engine is operating as a +percentage of it's maximum frequency. + =============================== Driver specific implementations =============================== diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst index 54060cd6c419..4e59db1cfb00 100644 --- a/Documentation/gpu/i915.rst +++ b/Documentation/gpu/i915.rst @@ -246,6 +246,18 @@ Display State Buffer .. kernel-doc:: drivers/gpu/drm/i915/display/intel_dsb.c :internal: +GT Programming +============== + +Multicast/Replicated (MCR) Registers +------------------------------------ + +.. kernel-doc:: drivers/gpu/drm/i915/gt/intel_gt_mcr.c + :doc: GT Multicast/Replicated (MCR) Register Support + +.. kernel-doc:: drivers/gpu/drm/i915/gt/intel_gt_mcr.c + :internal: + Memory Management and Command Submission ======================================== |