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feat((smccc): add version FID for PMF

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Introduce a version FID for PMF.

Change-Id: I6b0a7f54aefc2839704e03c5da2243d7c85f8a49
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
This commit is contained in:
Govindraj Raja 2024-04-23 11:48:48 -05:00
parent f7679d437d
commit 42cbefc727
3 changed files with 15 additions and 2 deletions
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4
docs/components/ven-el3-service.rst
View file

@ -28,8 +28,8 @@ Vendor-specific EL3 monitor services are as follows:
+-----------------------------------+ | | 12 - 15 are reserved for future expansion.|
| 0xC7000010 - 0xC700001F (SMC64) | | |
+-----------------------------------+-----------------------+---------------------------------------------+
| 0x87000020 - 0x8700002F (SMC32) | Performance | | 0 is in use. |
+-----------------------------------+ Measurement Framework | | 1 - 15 are reserved for future expansion. |
| 0x87000020 - 0x8700002F (SMC32) | Performance | | 0,1 is in use. |
+-----------------------------------+ Measurement Framework | | 2 - 15 are reserved for future expansion. |
| 0xC7000020 - 0xC700002F (SMC64) | (PMF) | |
+-----------------------------------+-----------------------+---------------------------------------------+

5
include/lib/pmf/pmf.h
View file

@ -54,6 +54,11 @@
#define PMF_SMC_GET_TIMESTAMP_64 U(0xC7000020)
#define PMF_NUM_SMC_CALLS 2
#define PMF_SMC_GET_VERSION_32 U(0x87000021)
#define PMF_SMC_GET_VERSION_64 U(0xC7000021)
#define PMF_SMC_VERSION U(0x00000001)
/*
* The macros below are used to identify
* PMF calls from the SMC function ID.

8
lib/pmf/pmf_smc.c
View file

@ -49,6 +49,10 @@ uintptr_t pmf_smc_handler(unsigned int smc_fid,
SMC_RET3(handle, rc, (uint32_t)ts_value,
(uint32_t)(ts_value >> 32));
}
if (smc_fid == PMF_SMC_GET_VERSION_32) {
SMC_RET2(handle, SMC_OK, PMF_SMC_VERSION);
}
} else {
if (smc_fid == PMF_SMC_GET_TIMESTAMP_64 ||
smc_fid == PMF_SMC_GET_TIMESTAMP_64_DEP) {
@ -62,6 +66,10 @@ uintptr_t pmf_smc_handler(unsigned int smc_fid,
(unsigned int)x3, &ts_value);
SMC_RET2(handle, rc, ts_value);
}
if (smc_fid == PMF_SMC_GET_VERSION_64) {
SMC_RET2(handle, SMC_OK, PMF_SMC_VERSION);
}
}
WARN("Unimplemented PMF Call: 0x%x \n", smc_fid);