evie/android_kernel_oneplus_msm8998
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Merge "mdss: mdp: unmap buffers before secure transition"

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Linux Build Service Account 2016-12-21 07:30:06 -08:00 • committed by Gerrit - the friendly Code Review server
commit 8d9d44abdd
1 changed files with 25 additions and 13 deletions
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34
drivers/video/fbdev/msm/mdss_mdp_overlay.c
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@ -1206,7 +1206,8 @@ static void __overlay_pipe_cleanup(struct msm_fb_data_type *mfd,
* and cleaned up. Also cleanup of any pipe buffers after flip. * and cleaned up. Also cleanup of any pipe buffers after flip.
*/ */
static void mdss_mdp_overlay_cleanup(struct msm_fb_data_type *mfd, static void mdss_mdp_overlay_cleanup(struct msm_fb_data_type *mfd,
struct list_head *destroy_pipes) struct list_head *destroy_pipes,
bool locked)
{ {
struct mdss_mdp_pipe *pipe, *tmp; struct mdss_mdp_pipe *pipe, *tmp;
struct mdss_overlay_private *mdp5_data = mfd_to_mdp5_data(mfd); struct mdss_overlay_private *mdp5_data = mfd_to_mdp5_data(mfd);
@ -1215,6 +1216,7 @@ static void mdss_mdp_overlay_cleanup(struct msm_fb_data_type *mfd,
bool skip_fetch_halt, pair_found; bool skip_fetch_halt, pair_found;
struct mdss_mdp_data *buf, *tmpbuf; struct mdss_mdp_data *buf, *tmpbuf;
if (!locked)
mutex_lock(&mdp5_data->list_lock); mutex_lock(&mdp5_data->list_lock);
list_for_each_entry(pipe, destroy_pipes, list) { list_for_each_entry(pipe, destroy_pipes, list) {
pair_found = false; pair_found = false;
@ -1292,6 +1294,7 @@ static void mdss_mdp_overlay_cleanup(struct msm_fb_data_type *mfd,
ctl->mixer_right->next_pipe_map &= ~pipe->ndx; ctl->mixer_right->next_pipe_map &= ~pipe->ndx;
} }
} }
if (!locked)
mutex_unlock(&mdp5_data->list_lock); mutex_unlock(&mdp5_data->list_lock);
} }
@ -2207,6 +2210,13 @@ static int __overlay_secure_ctrl(struct msm_fb_data_type *mfd)
/*wait for ping pong done */ /*wait for ping pong done */
if (ctl->ops.wait_pingpong) if (ctl->ops.wait_pingpong)
mdss_mdp_display_wait4pingpong(ctl, true); mdss_mdp_display_wait4pingpong(ctl, true);
/*
* unmap the previous commit buffers before
* transitioning to secure state
*/
mdss_mdp_overlay_cleanup(mfd,
&mdp5_data->pipes_destroy,
true);
ret = mdss_mdp_secure_session_ctrl(1, ret = mdss_mdp_secure_session_ctrl(1,
MDP_SECURE_DISPLAY_OVERLAY_SESSION); MDP_SECURE_DISPLAY_OVERLAY_SESSION);
if (ret) { if (ret) {
@ -2308,11 +2318,6 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
} }
mutex_lock(&mdp5_data->list_lock); mutex_lock(&mdp5_data->list_lock);
ret = __overlay_secure_ctrl(mfd);
if (IS_ERR_VALUE(ret)) {
pr_err("secure operation failed %d\n", ret);
goto commit_fail;
}
if (!ctl->shared_lock) if (!ctl->shared_lock)
mdss_mdp_ctl_notify(ctl, MDP_NOTIFY_FRAME_BEGIN); mdss_mdp_ctl_notify(ctl, MDP_NOTIFY_FRAME_BEGIN);
@ -2326,10 +2331,6 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
if (ctl->ops.wait_pingpong && mdp5_data->mdata->serialize_wait4pp) if (ctl->ops.wait_pingpong && mdp5_data->mdata->serialize_wait4pp)
mdss_mdp_display_wait4pingpong(ctl, true); mdss_mdp_display_wait4pingpong(ctl, true);
/*
* Setup pipe in solid fill before unstaging,
* to ensure no fetches are happening after dettach or reattach.
*/
list_for_each_entry_safe(pipe, tmp, &mdp5_data->pipes_cleanup, list) { list_for_each_entry_safe(pipe, tmp, &mdp5_data->pipes_cleanup, list) {
mdss_mdp_mixer_pipe_unstage(pipe, pipe->mixer_left); mdss_mdp_mixer_pipe_unstage(pipe, pipe->mixer_left);
mdss_mdp_mixer_pipe_unstage(pipe, pipe->mixer_right); mdss_mdp_mixer_pipe_unstage(pipe, pipe->mixer_right);
@ -2337,6 +2338,17 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
list_move(&pipe->list, &mdp5_data->pipes_destroy); list_move(&pipe->list, &mdp5_data->pipes_destroy);
} }
/*
* go to secure state if required, this should be done
* after moving the buffers from the previous commit to
* destroy list
*/
ret = __overlay_secure_ctrl(mfd);
if (IS_ERR_VALUE(ret)) {
pr_err("secure operation failed %d\n", ret);
goto commit_fail;
}
/* call this function before any registers programming */ /* call this function before any registers programming */
if (ctl->ops.pre_programming) if (ctl->ops.pre_programming)
ctl->ops.pre_programming(ctl); ctl->ops.pre_programming(ctl);
@ -2405,7 +2417,7 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
mdss_fb_update_notify_update(mfd); mdss_fb_update_notify_update(mfd);
commit_fail: commit_fail:
ATRACE_BEGIN("overlay_cleanup"); ATRACE_BEGIN("overlay_cleanup");
mdss_mdp_overlay_cleanup(mfd, &mdp5_data->pipes_destroy); mdss_mdp_overlay_cleanup(mfd, &mdp5_data->pipes_destroy, false);
ATRACE_END("overlay_cleanup"); ATRACE_END("overlay_cleanup");
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF); mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF);
mdss_mdp_ctl_notify(ctl, MDP_NOTIFY_FRAME_FLUSHED); mdss_mdp_ctl_notify(ctl, MDP_NOTIFY_FRAME_FLUSHED);