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Commit 6ab54ff4 authored by Mitchel Humpherys's avatar Mitchel Humpherys Committed by Liam Mark
Browse files

msm: secure_buffer: Add helper function to convert VMIDs into strings 



It can be useful to convert secure VMID values into strings.  Provide a
helper function to do so.

Change-Id: If907a0bac92c5d164154c0e5dfe67933115163c8
Signed-off-by: default avatarMitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: default avatarPatrick Daly <pdaly@codeaurora.org>
parent 7d881050

drivers/soc/qcom/secure_buffer.c

+32 −0
Original line number Diff line number Diff line
@@ -363,6 +363,38 @@ int hyp_assign_phys(phys_addr_t addr, u64 size, u32 *source_vm_list, 
	return ret;

}



const char *msm_secure_vmid_to_string(int secure_vmid)

{

	switch (secure_vmid) {

	case VMID_HLOS:

		return "VMID_HLOS";

	case VMID_CP_TOUCH:

		return "VMID_CP_TOUCH";

	case VMID_CP_BITSTREAM:

		return "VMID_CP_BITSTREAM";

	case VMID_CP_PIXEL:

		return "VMID_CP_PIXEL";

	case VMID_CP_NON_PIXEL:

		return "VMID_CP_NON_PIXEL";

	case VMID_CP_CAMERA:

		return "VMID_CP_CAMERA";

	case VMID_HLOS_FREE:

		return "VMID_HLOS_FREE";

	case VMID_MSS_MSA:

		return "VMID_MSS_MSA";

	case VMID_MSS_NONMSA:

		return "VMID_MSS_NONMSA";

	case VMID_CP_SEC_DISPLAY:

		return "VMID_CP_SEC_DISPLAY";

	case VMID_CP_APP:

		return "VMID_CP_APP";

	case VMID_INVAL:

		return "VMID_INVAL";

	default:

		return "Unknown VMID";

	}

}



#define MAKE_CP_VERSION(major, minor, patch) \

	(((major & 0x3FF) << 22) | ((minor & 0x3FF) << 12) | (patch & 0xFFF))

include/soc/qcom/secure_buffer.h

+9 −0
Original line number Diff line number Diff line
@@ -28,6 +28,10 @@ 
#define VMID_CP_SEC_DISPLAY 0x11

#define VMID_CP_APP 0x12

#define VMID_INVAL -1

/*

 * if you add a secure VMID here make sure you update

 * msm_secure_vmid_to_string

 */



#define PERM_READ                       0x4

#define PERM_WRITE                      0x2
@@ -44,6 +48,7 @@ int hyp_assign_phys(phys_addr_t addr, u64 size, 
			u32 *source_vmlist, int source_nelems,

			int *dest_vmids, int *dest_perms, int dest_nelems);

bool msm_secure_v2_is_supported(void);

const char *msm_secure_vmid_to_string(int secure_vmid);

#else

static inline int msm_secure_table(struct sg_table *table)

{
@@ -72,5 +77,9 @@ static inline bool msm_secure_v2_is_supported(void) 
{

	return false;

}

const char *msm_secure_vmid_to_string(int secure_vmid)

{

	return "N/A";

}

#endif

#endif