samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: sde: use dma_map_single to flush the buffer

Bläddra i källkod 
dmac_flush_range api is no longer avaialable on latest kernel.
Use dma_map_single to flush the scm buffer before switching to
higher execution previlege.

Change-Id: Ia1c18a6ab9a9c80f5f9ce79816d9dbd3777474b0
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
This commit is contained in:
Abhijit Kulkarni
2019-11-06 18:31:21 -08:00
förälder d1d9ae8b19
incheckning 1fb09ffb74
1 ändrade filer med 5 tillägg och 1 borttagningar
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6
msm/sde/sde_kms.c
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@@ -272,6 +272,7 @@ static int _sde_kms_secure_ctrl_xin_clients(struct sde_kms *sde_kms,
*/
static int _sde_kms_scm_call(struct sde_kms *sde_kms, int vmid)
{
struct drm_device *dev;
struct scm_desc desc = {0};
uint32_t num_sids;
uint32_t *sec_sid;
@@ -281,6 +282,8 @@ static int _sde_kms_scm_call(struct sde_kms *sde_kms, int vmid)
struct qtee_shm shm;
bool qtee_en = qtee_shmbridge_is_enabled();
dev = sde_kms->dev;
num_sids = sde_cfg->sec_sid_mask_count;
if (!num_sids) {
SDE_ERROR("secure SID masks not configured, vmid 0x%x\n", vmid);
@@ -313,7 +316,8 @@ static int _sde_kms_scm_call(struct sde_kms *sde_kms, int vmid)
sec_sid[i] = sde_cfg->sec_sid_mask[i];
SDE_DEBUG("sid_mask[%d]: %d\n", i, sec_sid[i]);
}
dmac_flush_range(sec_sid, sec_sid + num_sids);
dma_map_single(dev->dev, sec_sid, num_sids *sizeof(uint32_t),
DMA_TO_DEVICE);
SDE_DEBUG("calling scm_call for vmid 0x%x, num_sids %d, qtee_en %d",
vmid, num_sids, qtee_en);