mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-01 01:14:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Not reset front end when program back end.

Browse Source 
Since front end is programmed before back end programming,
no need to reset front end in back end programming.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yongqiang Sun
2017-10-17 14:24:28 -04:00
committed by Alex Deucher
parent 7a5086a71e
commit 74707de336
2 changed files with 2 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/core/dc.c
View File

@@ -850,6 +850,8 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
if (!dcb->funcs->is_accelerated_mode(dcb))
dc->hwss.enable_accelerated_mode(dc);
for (i = 0; i < context->stream_count; i++) {
const struct dc_sink *sink = context->streams[i]->sink;
@@ -928,7 +930,6 @@ bool dc_commit_state(struct dc *dc, struct dc_state *context)
return (result == DC_OK);
}
bool dc_post_update_surfaces_to_stream(struct dc *dc)
{
int i;

76
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
View File

@@ -617,32 +617,6 @@ static void plane_atomic_disable(struct dc *dc,
verify_allow_pstate_change_high(dc->hwseq);
}
/*
* kill power to plane hw
* note: cannot power down until plane is disable
*/
static void plane_atomic_power_down(struct dc *dc, int fe_idx)
{
struct dce_hwseq *hws = dc->hwseq;
struct dpp *dpp = dc->res_pool->dpps[fe_idx];
if (REG(DC_IP_REQUEST_CNTL)) {
REG_SET(DC_IP_REQUEST_CNTL, 0,
IP_REQUEST_EN, 1);
dpp_pg_control(hws, fe_idx, false);
hubp_pg_control(hws, fe_idx, false);
dpp->funcs->dpp_reset(dpp);
REG_SET(DC_IP_REQUEST_CNTL, 0,
IP_REQUEST_EN, 0);
dm_logger_write(dc->ctx->logger, LOG_DEBUG,
"Power gated front end %d\n", fe_idx);
if (dc->debug.sanity_checks)
verify_allow_pstate_change_high(dc->hwseq);
}
}
static void reset_front_end(
struct dc *dc,
int fe_idx)
@@ -792,56 +766,6 @@ static void reset_hw_ctx_wrap(
{
int i;
/* Reset Front End*/
/* Lock*/
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *cur_pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
struct timing_generator *tg = cur_pipe_ctx->stream_res.tg;
if (cur_pipe_ctx->stream)
tg->funcs->lock(tg);
}
/* Disconnect*/
for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
struct pipe_ctx *pipe_ctx_old =
&dc->current_state->res_ctx.pipe_ctx[i];
struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
if (!pipe_ctx->stream ||
!pipe_ctx->plane_state ||
pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
plane_atomic_disconnect(dc, i);
}
}
/* Unlock*/
for (i = dc->res_pool->pipe_count - 1; i >= 0; i--) {
struct pipe_ctx *cur_pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
struct timing_generator *tg = cur_pipe_ctx->stream_res.tg;
if (cur_pipe_ctx->stream)
tg->funcs->unlock(tg);
}
/* Disable and Powerdown*/
for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
struct pipe_ctx *pipe_ctx_old =
&dc->current_state->res_ctx.pipe_ctx[i];
struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
/*if (!pipe_ctx_old->stream)
continue;*/
if (pipe_ctx->stream && pipe_ctx->plane_state
&& !pipe_need_reprogram(pipe_ctx_old, pipe_ctx))
continue;
plane_atomic_disable(dc, i);
if (!pipe_ctx->stream || !pipe_ctx->plane_state)
plane_atomic_power_down(dc, i);
}
/* Reset Back End*/
for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
struct pipe_ctx *pipe_ctx_old =