diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 64 |
1 files changed, 63 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index b46a26a8ad4c..979f52ee5604 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -32,6 +32,7 @@ #include "../basics/conversion.h" #include "cursor_reg_cache.h" #include "resource.h" +#include "clk_mgr.h" #define CTX dc_dmub_srv->ctx #define DC_LOGGER CTX->logger @@ -1061,4 +1062,65 @@ void dc_dmub_srv_enable_dpia_trace(const struct dc *dc) void dc_dmub_srv_subvp_save_surf_addr(const struct dc_dmub_srv *dc_dmub_srv, const struct dc_plane_address *addr, uint8_t subvp_index) { dmub_srv_subvp_save_surf_addr(dc_dmub_srv->dmub, addr, subvp_index); -}
\ No newline at end of file +} + +bool dc_dmub_srv_is_hw_pwr_up(struct dc_dmub_srv *dc_dmub_srv, bool wait) +{ + struct dc_context *dc_ctx = dc_dmub_srv->ctx; + enum dmub_status status; + + if (dc_dmub_srv->ctx->dc->debug.dmcub_emulation) + return true; + + if (wait) { + status = dmub_srv_wait_for_hw_pwr_up(dc_dmub_srv->dmub, 500000); + if (status != DMUB_STATUS_OK) { + DC_ERROR("Error querying DMUB hw power up status: error=%d\n", status); + return false; + } + } else + return dmub_srv_is_hw_pwr_up(dc_dmub_srv->dmub); + + return true; +} + +void dc_dmub_srv_notify_idle(const struct dc *dc, bool allow_idle) +{ + union dmub_rb_cmd cmd = {0}; + + if (dc->debug.dmcub_emulation) + return; + + memset(&cmd, 0, sizeof(cmd)); + cmd.idle_opt_notify_idle.header.type = DMUB_CMD__IDLE_OPT; + cmd.idle_opt_notify_idle.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_NOTIFY_IDLE; + cmd.idle_opt_notify_idle.header.payload_bytes = + sizeof(cmd.idle_opt_notify_idle) - + sizeof(cmd.idle_opt_notify_idle.header); + + cmd.idle_opt_notify_idle.cntl_data.driver_idle = allow_idle; + + dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT); + + if (allow_idle) + udelay(500); +} + +void dc_dmub_srv_exit_low_power_state(const struct dc *dc) +{ + if (dc->debug.dmcub_emulation) + return; + // Tell PMFW to exit low power state + if (dc->clk_mgr->funcs->exit_low_power_state) + dc->clk_mgr->funcs->exit_low_power_state(dc->clk_mgr); + + // Wait for dmcub to load up + dc_dmub_srv_is_hw_pwr_up(dc->ctx->dmub_srv, true); + + // Notify dmcub disallow idle + dc_dmub_srv_notify_idle(dc, false); + + // Confirm dmu is powered up + dc_dmub_srv_is_hw_pwr_up(dc->ctx->dmub_srv, true); +} + |