samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

disp: Update secure world communication from display

Browse Source 
As scm_call2 is deprecated, update the secure world
communication.

Change-Id: Id971b2b71af9203340eab892d6a3398dbb943370
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
This commit is contained in:
Prasad Sodagudi
2019-10-11 17:30:35 -07:00
committed by Abhijit Kulkarni
parent e5d0b99899
commit 91721d8d2f
3 changed files with 40 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
msm/sde/sde_kms.c
View File

@@ -49,7 +49,7 @@
#include "sde_reg_dma.h"
#include "sde_connector.h"
#include <soc/qcom/scm.h>
#include <linux/qcom_scm.h>
#include "soc/qcom/secure_buffer.h"
#include <linux/qtee_shmbridge.h>
@@ -273,14 +273,14 @@ 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;
uint32_t mem_protect_sd_ctrl_id = MEM_PROTECT_SD_CTRL_SWITCH;
struct sde_mdss_cfg *sde_cfg = sde_kms->catalog;
int ret = 0, i;
struct qtee_shm shm;
bool qtee_en = qtee_shmbridge_is_enabled();
phys_addr_t mem_addr;
u64 mem_size;
dev = sde_kms->dev;
@@ -297,21 +297,17 @@ static int _sde_kms_scm_call(struct sde_kms *sde_kms, int vmid)
return -ENOMEM;
sec_sid = (uint32_t *) shm.vaddr;
desc.args[1] = shm.paddr;
desc.args[2] = shm.size;
mem_addr = shm.paddr;
mem_size = shm.size;
} else {
sec_sid = kcalloc(num_sids, sizeof(uint32_t), GFP_KERNEL);
if (!sec_sid)
return -ENOMEM;
desc.args[1] = SCM_BUFFER_PHYS(sec_sid);
desc.args[2] = sizeof(uint32_t) * num_sids;
mem_addr = virt_to_phys(sec_sid);
mem_size = sizeof(uint32_t) * num_sids;
}
desc.arginfo = SCM_ARGS(4, SCM_VAL, SCM_RW, SCM_VAL, SCM_VAL);
desc.args[0] = MDP_DEVICE_ID;
desc.args[3] = vmid;
for (i = 0; i < num_sids; i++) {
sec_sid[i] = sde_cfg->sec_sid_mask[i];
SDE_DEBUG("sid_mask[%d]: %d\n", i, sec_sid[i]);
@@ -322,13 +318,13 @@ static int _sde_kms_scm_call(struct sde_kms *sde_kms, int vmid)
SDE_DEBUG("calling scm_call for vmid 0x%x, num_sids %d, qtee_en %d",
vmid, num_sids, qtee_en);
ret = scm_call2(SCM_SIP_FNID(SCM_SVC_MP,
mem_protect_sd_ctrl_id), &desc);
ret = qcom_scm_mem_protect_sd_ctrl(MDP_DEVICE_ID, mem_addr,
mem_size, vmid);
if (ret)
SDE_ERROR("Error:scm_call2, vmid %lld, ret%d\n",
desc.args[3], ret);
SDE_EVT32(mem_protect_sd_ctrl_id, desc.args[0], desc.args[2],
desc.args[3], qtee_en, num_sids, ret);
vmid, ret);
SDE_EVT32(MEM_PROTECT_SD_CTRL_SWITCH, MDP_DEVICE_ID, mem_size,
vmid, qtee_en, num_sids, ret);
if (qtee_en)
qtee_shmbridge_free_shm(&shm);