diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2020-01-15 23:17:29 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-06 23:04:37 +0300 |
| commit | fbbd3f8f6b8fd0165ed95cc0236cd482175a0403 (patch) | |
| tree | e500a315c1ba5dfc70b2473bcc95cef82a03ba84 /drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h | |
| parent | 47b0c91f29f85282f1ad777d4059ce4e0c6aeb12 (diff) | |
| download | linux-fbbd3f8f6b8fd0165ed95cc0236cd482175a0403.tar.xz | |
drm/amd/display: Add GPINT handler interface
[Why]
The General Purpose Interrupt is used on the DMCUB to pass lightweight
commands via a register to the DMCUB.
This is limited to 32-bit command and 32-bit response.
This will be used for shutting down the firmware in a clean manner.
[How]
Add the command IDs and the data register to correctly format
the commands.
Add the interface functions to dmub_srv for sending and receiving the
commands.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h index 04b0fa13153d..7f046c73927e 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.h @@ -91,6 +91,7 @@ struct dmub_srv; DMUB_SR(DMCUB_SCRATCH13) \ DMUB_SR(DMCUB_SCRATCH14) \ DMUB_SR(DMCUB_SCRATCH15) \ + DMUB_SR(DMCUB_GPINT_DATAIN1) \ DMUB_SR(CC_DC_PIPE_DIS) \ DMUB_SR(MMHUBBUB_SOFT_RESET) \ DMUB_SR(DCN_VM_FB_LOCATION_BASE) \ @@ -183,4 +184,12 @@ bool dmub_dcn20_is_hw_init(struct dmub_srv *dmub); bool dmub_dcn20_is_supported(struct dmub_srv *dmub); +void dmub_dcn20_set_gpint(struct dmub_srv *dmub, + union dmub_gpint_data_register reg); + +bool dmub_dcn20_is_gpint_acked(struct dmub_srv *dmub, + union dmub_gpint_data_register reg); + +uint32_t dmub_dcn20_get_gpint_response(struct dmub_srv *dmub); + #endif /* _DMUB_DCN20_H_ */ |