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Commit f8c83ddd authored by Shrenuj Bansal's avatar Shrenuj Bansal
Browse files

msm: kgsl: Set the secure vmid domain attribute 



Pass the secure pixel vmid for the secure context banks in domain
attributes. The secure pagetable resides in stage 1 HLOS and needs
to be moved to stage 2 Hypervisor. The SMMU driver takes care of
this by looking at the domain attribute.

Change-Id: I9cefcefb92b59afb2ac0dab53d4102682e07f904
Signed-off-by: default avatarShrenuj Bansal <shrenujb@codeaurora.org>
parent a2287c55

drivers/gpu/msm/kgsl_iommu.c

+11 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/slab.h>

#include <linux/iommu.h>

#include <linux/msm_kgsl.h>

#include <soc/qcom/secure_buffer.h>

#include <stddef.h>



#include "kgsl.h"
@@ -566,6 +567,16 @@ static int kgsl_iommu_init_pt(struct kgsl_mmu *mmu, struct kgsl_pagetable *pt) 
	iommu_domain_set_attr(iommu_pt->domain,

			DOMAIN_ATTR_COHERENT_HTW_DISABLE, &disable_htw);



	/* Provide the secure vmid domain attribute to the SMMU driver */

	if (pt->name == KGSL_MMU_SECURE_PT) {

		int secure_vmid = VMID_CP_PIXEL;



		ret = iommu_domain_set_attr(iommu_pt->domain,

			DOMAIN_ATTR_SECURE_VMID, &secure_vmid);

		if (ret)

			goto err;

	}



	pt->pt_ops = &iommu_pt_ops;

	pt->priv = iommu_pt;