evie/android_kernel_oneplus_msm8998
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Merge "drm: msm: sde: move S1 smmu enablement earlier"

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Linux Build Service Account 2018-06-29 12:04:15 -07:00 • committed by Gerrit - the friendly Code Review server
commit 0c110c0c25
2 changed files with 16 additions and 26 deletions
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15
drivers/gpu/drm/msm/sde/sde_kms.c
View file

@ -1128,6 +1128,7 @@ static int _sde_kms_mmu_init(struct sde_kms *sde_kms)
{
struct msm_mmu *mmu;
int i, ret;
int data = 0;
for (i = 0; i < MSM_SMMU_DOMAIN_MAX; i++) {
struct msm_gem_address_space *aspace;
@ -1188,6 +1189,20 @@ static int _sde_kms_mmu_init(struct sde_kms *sde_kms)
msm_gem_address_space_put(aspace);
goto fail;
}
/*
* Enable stage 1 smmu after user has finished early
* mapping of splash memory.
*/
ret = mmu->funcs->set_property(mmu,
DOMAIN_ATTR_EARLY_MAP,
&data);
if (ret) {
SDE_ERROR("failed to set map att(%d): %d\n",
data, ret);
msm_gem_address_space_put(aspace);
goto fail;
}
}
}

27
drivers/gpu/drm/msm/sde/sde_splash.c
View file

@ -856,16 +856,12 @@ int sde_splash_free_resource(struct msm_kms *kms,
}
/*
* In below function, it will
* 1. Notify LK to stop display splash.
* 2. Set DOMAIN_ATTR_EARLY_MAP to 1 to enable stage 1 translation in iommu.
* Below function will notify LK to stop display splash.
*/
int sde_splash_lk_stop_splash(struct msm_kms *kms)
{
struct sde_splash_info *sinfo;
struct msm_mmu *mmu;
struct sde_kms *sde_kms = to_sde_kms(kms);
int ret;
sinfo = &sde_kms->splash_info;
@ -884,26 +880,5 @@ int sde_splash_lk_stop_splash(struct msm_kms *kms)
}
mutex_unlock(&sde_splash_lock);
if (!sde_kms->aspace[0] || !sde_kms->aspace[0]->mmu) {
/* We do not return fault value here, to ensure
* flag "lk_is_exited" is set.
*/
SDE_ERROR("invalid mmu\n");
WARN_ON(1);
} else {
mmu = sde_kms->aspace[0]->mmu;
/* After LK has exited, set early domain map attribute
* to 1 to enable stage 1 translation in iommu driver.
*/
if (mmu->funcs && mmu->funcs->set_property) {
ret = mmu->funcs->set_property(mmu,
DOMAIN_ATTR_EARLY_MAP,
&sinfo->display_splash_enabled);
if (ret)
SDE_ERROR("set_property failed\n");
}
}
return 0;
}