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msm: mdss: attach iommu dynamically for video mode panel

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MDSS driver supports iommu dynamic attach only when splash
thread is enabled. Client might want to attach the iommu
dynamically without using splash thread to avoid blink for
video mode panel. That is possible by doing 1-to-1 memory
mapping before iommu attach and splash memory late release.
This change supports the dynamic memory mapping to avoid
splash thread. Release the splash memory in first commit
instead of first suspend resume.

CRs-fixed: 755804
Change-Id: I7dcb415644a54a4b80f700c4d0914511a5685830
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
This commit is contained in:
Dhaval Patel 2014-10-29 11:23:15 -07:00 • committed by David Keitel
parent b5d7349b2f
commit 4c8199537e
2 changed files with 19 additions and 4 deletions
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1
drivers/video/fbdev/msm/mdss_mdp_overlay.c
View file

@ -1315,6 +1315,7 @@ int mdss_mdp_overlay_start(struct msm_fb_data_type *mfd)
if (!mdp5_data->mdata->batfet) if (!mdp5_data->mdata->batfet)
mdss_mdp_batfet_ctrl(mdp5_data->mdata, true); mdss_mdp_batfet_ctrl(mdp5_data->mdata, true);
mdss_mdp_release_splash_pipe(mfd); mdss_mdp_release_splash_pipe(mfd);
mdss_mdp_splash_cleanup(mfd, true);
return 0; return 0;
} else if (mfd->panel_info->cont_splash_enabled) { } else if (mfd->panel_info->cont_splash_enabled) {
mutex_lock(&mdp5_data->list_lock); mutex_lock(&mdp5_data->list_lock);

22
drivers/video/fbdev/msm/mdss_mdp_splash_logo.c
View file

@ -253,11 +253,24 @@ int mdss_mdp_splash_cleanup(struct msm_fb_data_type *mfd,
if (!ctl) if (!ctl)
return -EINVAL; return -EINVAL;
if (mfd->splash_info.iommu_dynamic_attached || if (!mfd->panel_info->cont_splash_enabled ||
!mfd->panel_info->cont_splash_enabled) (mfd->splash_info.iommu_dynamic_attached && !use_borderfill)) {
if (mfd->splash_info.iommu_dynamic_attached &&
use_borderfill) {
mdss_mdp_splash_unmap_splash_mem(mfd);
memblock_free(mdp5_data->splash_mem_addr,
mdp5_data->splash_mem_size);
mdss_free_bootmem(mdp5_data->splash_mem_addr,
mdp5_data->splash_mem_size);
}
goto end; goto end;
}
if (use_borderfill && mdp5_data->handoff) { /* 1-to-1 mapping */
mdss_mdp_splash_iommu_attach(mfd);
if (use_borderfill && mdp5_data->handoff &&
!mfd->splash_info.iommu_dynamic_attached) {
/* /*
* Set up border-fill on the handed off pipes. * Set up border-fill on the handed off pipes.
* This is needed to ensure that there are no memory * This is needed to ensure that there are no memory
@ -293,7 +306,8 @@ int mdss_mdp_splash_cleanup(struct msm_fb_data_type *mfd,
mdss_mdp_ctl_splash_finish(ctl, mdp5_data->handoff); mdss_mdp_ctl_splash_finish(ctl, mdp5_data->handoff);
if (mdp5_data->splash_mem_addr) { if (mdp5_data->splash_mem_addr &&
!mfd->splash_info.iommu_dynamic_attached) {
/* Give back the reserved memory to the system */ /* Give back the reserved memory to the system */
memblock_free(mdp5_data->splash_mem_addr, memblock_free(mdp5_data->splash_mem_addr,
mdp5_data->splash_mem_size); mdp5_data->splash_mem_size);