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Commit cb4f3902 authored by Jeykumar Sankaran's avatar Jeykumar Sankaran
Browse files

disp: msm: sde: add helper api to check executing VM 



Adds a DT property to indicate trusted VM execution
environment and support catalog parsing for the same.
Add helper API to read the value.

Change-Id: I9194618b6f080119f1f15271a9b3c7edf938ca08
Signed-off-by: default avatarJeykumar Sankaran <jsanka@codeaurora.org>
parent b87b1369

msm/sde/sde_hw_catalog.c

+4 −0
Original line number Diff line number Diff line
@@ -201,6 +201,7 @@ enum sde_prop { 
	PIPE_ORDER_VERSION,

	SEC_SID_MASK,

	BASE_LAYER,

	TRUSTED_VM_ENV,

	SDE_PROP_MAX,

};
@@ -571,6 +572,7 @@ static struct sde_prop_type sde_prop[] = { 
			PROP_TYPE_U32},

	{SEC_SID_MASK, "qcom,sde-secure-sid-mask", false, PROP_TYPE_U32_ARRAY},

	{BASE_LAYER, "qcom,sde-mixer-stage-base-layer", false, PROP_TYPE_BOOL},

	{TRUSTED_VM_ENV, "qcom,sde-trusted-vm-env", false, PROP_TYPE_BOOL},

};



static struct sde_prop_type sde_perf_prop[] = {
@@ -3733,6 +3735,8 @@ static void _sde_top_parse_dt_helper(struct sde_mdss_cfg *cfg, 
	cfg->has_base_layer = PROP_VALUE_ACCESS(props->values, BASE_LAYER, 0);

	cfg->qseed_hw_version = PROP_VALUE_ACCESS(props->values,

			 QSEED_HW_VERSION, 0);

	cfg->trusted_vm_env = PROP_VALUE_ACCESS(props->values, TRUSTED_VM_ENV,

			 0);

}



static int sde_top_parse_dt(struct device_node *np, struct sde_mdss_cfg *cfg)

msm/sde/sde_hw_catalog.h

+3 −0
Original line number Diff line number Diff line
@@ -1360,6 +1360,8 @@ struct sde_perf_cfg { 
 * this HW version. Contains number of instances,

 * register offsets, capabilities of the all MDSS HW sub-blocks.

 *

 * @trusted_vm_env	set to true, if the driver is executing in

 *			the trusted VM. false, otherwise.

 * @max_sspp_linewidth max source pipe line width support.

 * @vig_sspp_linewidth max vig source pipe line width support.

 * @scaling_linewidth max vig source pipe linewidth for scaling usecases
@@ -1432,6 +1434,7 @@ struct sde_perf_cfg { 
 */

struct sde_mdss_cfg {

	u32 hwversion;

	bool trusted_vm_env;



	u32 max_sspp_linewidth;

	u32 vig_sspp_linewidth;

msm/sde/sde_kms.h

+13 −0
Original line number Diff line number Diff line
@@ -642,6 +642,19 @@ static inline bool sde_kms_rect_is_null(const struct sde_rect *r) 
	return (!r->w || !r->h);

}



/*

 * sde_in_trusted_vm - checks the executing VM

 * return: true, if the device driver is executing in the trusted VM

 *         false, if the device driver is executing in the primary VM

 */

static inline bool sde_in_trusted_vm(const struct sde_kms *sde_kms)

{

	if (sde_kms && sde_kms->catalog)

		return sde_kms->catalog->trusted_vm_env;



	return false;

}



/**

 * Vblank enable/disable functions

 */