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| author | Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2023-11-18 01:51:47 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 19:45:06 +0300 |
| commit | dd0e89e5edc20d3875ed7ded48e7e97118cdfbc8 (patch) | |
| tree | eabea4b033dbcaa883308b551b395ec4142e3b1d /drivers/gpu/drm/xe/xe_gsc.h | |
| parent | 985d5a49e8454d64a01ab362e9091788eeed1839 (diff) | |
| download | linux-dd0e89e5edc20d3875ed7ded48e7e97118cdfbc8.tar.xz | |
drm/xe/gsc: GSC FW load
The GSC FW must be copied in a 4MB stolen memory allocation, whose GGTT
address is then passed as a parameter to a dedicated load instruction
submitted via the GSC engine.
Since the GSC load is relatively slow (up to 250ms), we perform it
asynchronously via a worker. This requires us to make sure that the
worker has stopped before suspending/unloading.
Note that we can't yet use xe_migrate_copy for the copy because it
doesn't work with stolen memory right now, so we do a memcpy from the
CPU side instead.
v2: add comment about timeout value, fix GSC status checking
before load (John)
Bspec: 65306, 65346
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gsc.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gsc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gsc.h b/drivers/gpu/drm/xe/xe_gsc.h index baa7f21f4204..f870eddc77d4 100644 --- a/drivers/gpu/drm/xe/xe_gsc.h +++ b/drivers/gpu/drm/xe/xe_gsc.h @@ -9,5 +9,8 @@ #include "xe_gsc_types.h" int xe_gsc_init(struct xe_gsc *gsc); +int xe_gsc_init_post_hwconfig(struct xe_gsc *gsc); +void xe_gsc_wait_for_worker_completion(struct xe_gsc *gsc); +void xe_gsc_load_start(struct xe_gsc *gsc); #endif |