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gunyah: arm64: Add support for arm64 drivers for Gunyah

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Add gh_arm basic driver to support Gunyah. All required features can be
further added to support complete functioning of Gunyah drivers.

Change-Id: I0b821d30977963f9891470ed423f9f9645315153
Signed-off-by: Prakruthi Deepak Heragu <pheragu@codeaurora.org>
This commit is contained in:
Prakruthi Deepak Heragu 2021-07-13 16:31:06 -07:00
parent 3bc0c6e962
commit 5d9f2d2223
6 changed files with 42 additions and 0 deletions
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1
arch/arm64/Kbuild
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@ -4,3 +4,4 @@ obj-$(CONFIG_NET) += net/
obj-$(CONFIG_KVM) += kvm/
obj-$(CONFIG_XEN) += xen/
obj-$(CONFIG_CRYPTO) += crypto/
obj-$(CONFIG_GUNYAH_DRIVERS) += gunyah/

2
arch/arm64/Kconfig
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@ -2024,6 +2024,8 @@ source "drivers/acpi/Kconfig"
source "arch/arm64/kvm/Kconfig"
source "arch/arm64/gunyah/Kconfig"
if CRYPTO
source "arch/arm64/crypto/Kconfig"
endif

13
arch/arm64/gunyah/Kconfig Normal file
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@ -0,0 +1,13 @@
# SPDX-License-Identifier: GPL-2.0-only
menu "Gunyah arm64 drivers"
config GH_ARM64_DRV
tristate "Gunyah arm64 support"
depends on ARM64
help
Gunyah drivers need arch specific support. Add support for
ARM64 features required by Gunyah virtualizaton drivers. All
arm64 specific features like GIC and reset reasons are handled
by drivers under this config.
endmenu

4
arch/arm64/gunyah/Makefile Normal file
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@ -0,0 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_GH_ARM64_DRV) += gh_arm_drv.o
gh_arm_drv-y := gh_arm.o

21
arch/arm64/gunyah/gh_arm.c Normal file
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@ -0,0 +1,21 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
*
*/
#include <linux/module.h>
static int __init gh_arm_init(void)
{
return 0;
}
module_init(gh_arm_init);
static void __exit gh_arm_exit(void)
{
}
module_exit(gh_arm_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Gunyah ARM64 Driver");

1
modules.list.msm.waipio
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@ -17,6 +17,7 @@ gdsc-regulator.ko
gh_ctrl.ko
gh_dbl.ko
gh_msgq.ko
gh_arm_drv.ko
gh_rm_drv.ko
gh_virt_wdt.ko
hwkm.ko