C++ (Cpp) scm_is_call_available Examples

Example #1

File: governor_msm_adreno_tz.c Project: Flinny/kernel_htc_msm8994

static int tz_init(struct devfreq_msm_adreno_tz_data *priv,
			unsigned int *tz_pwrlevels, u32 size_pwrlevels,
			unsigned int *version, u32 size_version)
{
	int ret;
	/* Make sure all CMD IDs are avaialble */
	if (scm_is_call_available(SCM_SVC_DCVS, TZ_INIT_ID)) {
		ret = scm_call(SCM_SVC_DCVS, TZ_INIT_ID, tz_pwrlevels,
				size_pwrlevels, NULL, 0);
		*version = 0;

	} else if (scm_is_call_available(SCM_SVC_DCVS, TZ_INIT_ID_64) &&
			scm_is_call_available(SCM_SVC_DCVS, TZ_UPDATE_ID_64) &&
			scm_is_call_available(SCM_SVC_DCVS, TZ_RESET_ID_64)) {
		struct scm_desc desc = {0};
		unsigned int *tz_buf;

		if (!is_scm_armv8()) {
			ret = scm_call(SCM_SVC_DCVS, TZ_INIT_ID_64,
				       tz_pwrlevels, size_pwrlevels,
				       version, size_version);
			if (!ret)
				priv->is_64 = true;
			return ret;
		}

		tz_buf = kzalloc(PAGE_ALIGN(size_pwrlevels), GFP_KERNEL);
		if (!tz_buf)
			return -ENOMEM;
		memcpy(tz_buf, tz_pwrlevels, size_pwrlevels);
		/* Ensure memcpy completes execution */
		mb();
		dmac_flush_range(tz_buf, tz_buf + PAGE_ALIGN(size_pwrlevels));

		desc.args[0] = virt_to_phys(tz_buf);
		desc.args[1] = size_pwrlevels;
		desc.arginfo = SCM_ARGS(2, SCM_RW, SCM_VAL);

		ret = scm_call2(SCM_SIP_FNID(SCM_SVC_DCVS, TZ_V2_INIT_ID_64),
				&desc);
		*version = desc.ret[0];
		if (!ret)
			priv->is_64 = true;
		kzfree(tz_buf);
	} else
		ret = -EINVAL;

	return ret;
}

Example #2

File: scm-pas.c Project: jshafer817/sailfish_kernel_hp_tenderloin

int pas_supported(enum pas_id id)
{
	int ret;
	u32 periph = id, ret_val = 0;

	if (!secure_pil)
		return 0;

	if (machine_is_tenderloin()) return 0;

	/*
	 * 8660 SCM doesn't support querying secure PIL support so just return
	 * true if not overridden on the command line.
	 */
	if (cpu_is_msm8x60())
		return 1;

	if (scm_is_call_available(SCM_SVC_PIL, PAS_IS_SUPPORTED_CMD) <= 0)
		return 0;

	ret = scm_call(SCM_SVC_PIL, PAS_IS_SUPPORTED_CMD, &periph,
			sizeof(periph), &ret_val, sizeof(ret_val));
	if (ret)
		return ret;

	return ret_val;
}

Example #3

File: ftm.c Project: downthemachine/android_kernel_zte_aurora

static int32_t __init ftm_probe(struct platform_device *pdev)
{
	int ret;
	uint32_t cmd_id;

	for (cmd_id = QFPROM_WRITE_ROW_ID; cmd_id <= QFPROM_ROLLBACK_WRITE_ROW_ID; cmd_id++) {
		ret = scm_is_call_available(SCM_SVC_FUSE, cmd_id);
		printk("ftm: availability of cmd 0x%02x is %d\n", cmd_id, ret);
		if (ret <= 0)
			return ret;
	}

	return 0;
}

Example #4

File: governor_msm_adreno_tz.c Project: Skin1980/bass-MM

static int tz_init(struct devfreq_msm_adreno_tz_data *priv,
			unsigned int *tz_pwrlevels, u32 size_pwrlevels,
			unsigned int *version, u32 size_version)
{
	int ret;
	/* Make sure all CMD IDs are avaialble */
	if (scm_is_call_available(SCM_SVC_DCVS, TZ_INIT_ID)) {
		ret = scm_call(SCM_SVC_DCVS, TZ_INIT_ID, tz_pwrlevels,
				size_pwrlevels, NULL, 0);
		*version = 0;

	} else if (scm_is_call_available(SCM_SVC_DCVS, TZ_INIT_ID_64) &&
			scm_is_call_available(SCM_SVC_DCVS, TZ_UPDATE_ID_64) &&
			scm_is_call_available(SCM_SVC_DCVS, TZ_RESET_ID_64)) {

		ret = scm_call(SCM_SVC_DCVS, TZ_INIT_ID_64, tz_pwrlevels,
			size_pwrlevels, version, size_version);
		if (!ret)
			priv->is_64 = true;
	} else
		ret = -EINVAL;

	return ret;
}