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| author | Aditya Angadi <aditya.angadi@arm.com> | 2019-12-31 14:23:53 +0530 |
|---|---|---|
| committer | Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com> | 2020-02-07 19:24:17 +0530 |
| commit | 31e703f99574a5a1edeadde611b031c422d5987c (patch) | |
| tree | 366e92c86fcd8c75717fccbd01cb8873492129db /include | |
| parent | f893160690725fe79c8eb63fd90a945cc0374d90 (diff) | |
| download | platform_external_arm-trusted-firmware-31e703f99574a5a1edeadde611b031c422d5987c.tar.gz platform_external_arm-trusted-firmware-31e703f99574a5a1edeadde611b031c422d5987c.tar.bz2 platform_external_arm-trusted-firmware-31e703f99574a5a1edeadde611b031c422d5987c.zip | |
drivers/arm/scmi: allow use of multiple SCMI channels
On systems that have multiple platform components that can interpret the
SCMI messages, there is a need to support multiple SCMI channels (one
each to those platform components). Extend the existing SCMI interface
that currently supports only a single SCMI channel to support multiple
SCMI channels.
Change-Id: Ice4062475b903aef3b5e5bc37df364c9778a62c5
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drivers/arm/css/scmi.h | 4 | ||||
| -rw-r--r-- | include/plat/arm/css/common/css_pm.h | 13 |
2 files changed, 14 insertions, 3 deletions
diff --git a/include/drivers/arm/css/scmi.h b/include/drivers/arm/css/scmi.h index 1f8dc6cce..e8a2863a9 100644 --- a/include/drivers/arm/css/scmi.h +++ b/include/drivers/arm/css/scmi.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -162,7 +162,7 @@ int scmi_ap_core_set_reset_addr(void *p, uint64_t reset_addr, uint32_t attr); int scmi_ap_core_get_reset_addr(void *p, uint64_t *reset_addr, uint32_t *attr); /* API to get the platform specific SCMI channel information. */ -scmi_channel_plat_info_t *plat_css_get_scmi_info(void); +scmi_channel_plat_info_t *plat_css_get_scmi_info(int channel_id); /* API to override default PSCI callbacks for platforms that support SCMI. */ const plat_psci_ops_t *css_scmi_override_pm_ops(plat_psci_ops_t *ops); diff --git a/include/plat/arm/css/common/css_pm.h b/include/plat/arm/css/common/css_pm.h index 93f86162e..e5357f50b 100644 --- a/include/plat/arm/css/common/css_pm.h +++ b/include/plat/arm/css/common/css_pm.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -44,4 +44,15 @@ int css_node_hw_state(u_register_t mpidr, unsigned int power_level); */ extern const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[]; +#define SCMI_DOMAIN_ID_MASK U(0xFFFF) +#define SCMI_CHANNEL_ID_MASK U(0xFFFF) +#define SCMI_CHANNEL_ID_SHIFT U(16) + +#define SET_SCMI_CHANNEL_ID(n) (((n) & SCMI_CHANNEL_ID_MASK) << \ + SCMI_CHANNEL_ID_SHIFT) +#define SET_SCMI_DOMAIN_ID(n) ((n) & SCMI_DOMAIN_ID_MASK) +#define GET_SCMI_CHANNEL_ID(n) (((n) >> SCMI_CHANNEL_ID_SHIFT) & \ + SCMI_CHANNEL_ID_MASK) +#define GET_SCMI_DOMAIN_ID(n) ((n) & SCMI_DOMAIN_ID_MASK) + #endif /* CSS_PM_H */ |