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drm/amd/display: runtime select dmub emulatior. 

[Why & How]
Add emul specific hw function to dmub, in case of
emulator is created, we can runtime switch between
dmub emulator or dmub uC via is_virtual flag in dmub.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yongqiang Sun 2020-05-18 18:36:47 -04:00 committed by Alex Deucher
parent 38da56948d
commit 37ffa7a1e7
2 changed files with 12 additions and 8 deletions
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4
drivers/gpu/drm/amd/display/dmub/dmub_srv.h
View File

@ -256,6 +256,10 @@ struct dmub_srv_hw_funcs {
void (*set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset);
uint32_t (*emul_get_inbox1_rptr)(struct dmub_srv *dmub);
void (*emul_set_inbox1_wptr)(struct dmub_srv *dmub, uint32_t wptr_offset);
bool (*is_supported)(struct dmub_srv *dmub);
bool (*is_hw_init)(struct dmub_srv *dmub);

16
drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
View File

@ -199,13 +199,13 @@ enum dmub_status dmub_srv_create(struct dmub_srv *dmub,
/* Override (some) hardware funcs based on user params. */
if (params->hw_funcs) {
if (params->hw_funcs->get_inbox1_rptr)
dmub->hw_funcs.get_inbox1_rptr =
params->hw_funcs->get_inbox1_rptr;
if (params->hw_funcs->emul_get_inbox1_rptr)
dmub->hw_funcs.emul_get_inbox1_rptr =
params->hw_funcs->emul_get_inbox1_rptr;
if (params->hw_funcs->set_inbox1_wptr)
dmub->hw_funcs.set_inbox1_wptr =
params->hw_funcs->set_inbox1_wptr;
if (params->hw_funcs->emul_set_inbox1_wptr)
dmub->hw_funcs.emul_set_inbox1_wptr =
params->hw_funcs->emul_set_inbox1_wptr;
if (params->hw_funcs->is_supported)
dmub->hw_funcs.is_supported =
@ -502,7 +502,7 @@ enum dmub_status dmub_srv_cmd_execute(struct dmub_srv *dmub)
*/
dmub_rb_flush_pending(&dmub->inbox1_rb);
dmub->hw_funcs.set_inbox1_wptr(dmub, dmub->inbox1_rb.wrpt);
dmub->hw_funcs.set_inbox1_wptr(dmub, dmub->inbox1_rb.wrpt);
return DMUB_STATUS_OK;
}
@ -557,7 +557,7 @@ enum dmub_status dmub_srv_wait_for_idle(struct dmub_srv *dmub,
return DMUB_STATUS_INVALID;
for (i = 0; i <= timeout_us; ++i) {
dmub->inbox1_rb.rptr = dmub->hw_funcs.get_inbox1_rptr(dmub);
dmub->inbox1_rb.rptr = dmub->hw_funcs.get_inbox1_rptr(dmub);
if (dmub_rb_empty(&dmub->inbox1_rb))
return DMUB_STATUS_OK;