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| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2021-11-02 14:27:30 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-22 14:45:01 -0500 |
| commit | a53b554b56e0326edb2ddbbf8c76743191f7819c (patch) | |
| tree | 9be0deedd1d747c27c284b8a606493a09e553854 /drivers/gpu/drm/amd/display/dmub/dmub_srv.h | |
| parent | c09bb36dd1230838d49a5ebf409df804a5ebfdaa (diff) | |
| download | linux-a53b554b56e0326edb2ddbbf8c76743191f7819c.tar.gz linux-a53b554b56e0326edb2ddbbf8c76743191f7819c.tar.bz2 linux-a53b554b56e0326edb2ddbbf8c76743191f7819c.zip | |
drm/amd/display: Only flush delta from last command execution
[Why]
We're currently flushing commands that had been previously been
flushed or are currently being processed by the DMCUB when we don't
immediately wait for idle after command execution.
[How]
Avoiding reflushing the data by keeping track of the last wptr.
We'll treat this as the actual rptr by creating a copy of the inbox
and modifying the copy's rptr.
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/dmub_srv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h index 90065a09e76a..83855b8a32e9 100644 --- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h @@ -411,6 +411,7 @@ struct dmub_srv { struct dmub_srv_base_funcs funcs; struct dmub_srv_hw_funcs hw_funcs; struct dmub_rb inbox1_rb; + uint32_t inbox1_last_wptr; /** * outbox1_rb is accessed without locks (dal & dc) * and to be used only in dmub_srv_stat_get_notification() |