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| author | Samuel Holland <samuel.holland@sifive.com> | 2025-01-19 11:03:57 -0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2025-02-12 21:39:25 +0530 |
| commit | 434add551c2a17cac3804ff0f587d31be03f070e (patch) | |
| tree | 3554b7e11c36b8427cfc3349daf00a5eb5d5027b /lib/utils/cppc | |
| parent | e84ba966347009a2dae61d7399bc68c28892847e (diff) | |
| download | opensbi-434add551c2a17cac3804ff0f587d31be03f070e.zip opensbi-434add551c2a17cac3804ff0f587d31be03f070e.tar.gz opensbi-434add551c2a17cac3804ff0f587d31be03f070e.tar.bz2 | |
lib: utils: Initialize miscellaneous drivers in one pass
For driver subsystems that are not tightly integrated into the OpenSBI
init sequence, it is not important that the drivers are initialized in
any particular order. By putting all of these drivers in one array, they
can all be initialized with a single pass through the devicetree. This
saves about 10 ms of boot time on HiFive Unmatched.
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'lib/utils/cppc')
| -rw-r--r-- | lib/utils/cppc/fdt_cppc.c | 22 | ||||
| -rw-r--r-- | lib/utils/cppc/fdt_cppc_drivers.carray | 3 | ||||
| -rw-r--r-- | lib/utils/cppc/fdt_cppc_rpmi.c | 2 | ||||
| -rw-r--r-- | lib/utils/cppc/objects.mk | 5 |
4 files changed, 2 insertions, 30 deletions
diff --git a/lib/utils/cppc/fdt_cppc.c b/lib/utils/cppc/fdt_cppc.c deleted file mode 100644 index 0e1ecb2..0000000 --- a/lib/utils/cppc/fdt_cppc.c +++ /dev/null @@ -1,22 +0,0 @@ -/* - * SPDX-License-Identifier: BSD-2-Clause - * - * Copyright (c) 2024 Ventana Micro Systems Inc. - * - * Authors: - * Anup Patel <apatel@ventanamicro.com> - */ - -#include <sbi_utils/cppc/fdt_cppc.h> - -/* List of FDT CPPC drivers generated at compile time */ -extern const struct fdt_driver *const fdt_cppc_drivers[]; - -void fdt_cppc_init(const void *fdt) -{ - /* - * Platforms might have multiple CPPC devices or might - * not have any so probe all and don't fail. - */ - fdt_driver_init_all(fdt, fdt_cppc_drivers); -} diff --git a/lib/utils/cppc/fdt_cppc_drivers.carray b/lib/utils/cppc/fdt_cppc_drivers.carray deleted file mode 100644 index b25c788..0000000 --- a/lib/utils/cppc/fdt_cppc_drivers.carray +++ /dev/null @@ -1,3 +0,0 @@ -HEADER: sbi_utils/cppc/fdt_cppc.h -TYPE: const struct fdt_driver -NAME: fdt_cppc_drivers diff --git a/lib/utils/cppc/fdt_cppc_rpmi.c b/lib/utils/cppc/fdt_cppc_rpmi.c index 9532840..3934219 100644 --- a/lib/utils/cppc/fdt_cppc_rpmi.c +++ b/lib/utils/cppc/fdt_cppc_rpmi.c @@ -12,7 +12,7 @@ #include <sbi/sbi_cppc.h> #include <sbi/sbi_ecall_interface.h> #include <sbi/sbi_scratch.h> -#include <sbi_utils/cppc/fdt_cppc.h> +#include <sbi_utils/fdt/fdt_driver.h> #include <sbi_utils/fdt/fdt_helper.h> #include <sbi_utils/mailbox/fdt_mailbox.h> #include <sbi_utils/mailbox/rpmi_mailbox.h> diff --git a/lib/utils/cppc/objects.mk b/lib/utils/cppc/objects.mk index 07dc7d8..ece1791 100644 --- a/lib/utils/cppc/objects.mk +++ b/lib/utils/cppc/objects.mk @@ -7,8 +7,5 @@ # Anup Patel <apatel@ventanamicro.com> # -libsbiutils-objs-$(CONFIG_FDT_CPPC) += cppc/fdt_cppc.o -libsbiutils-objs-$(CONFIG_FDT_CPPC) += cppc/fdt_cppc_drivers.carray.o - -carray-fdt_cppc_drivers-$(CONFIG_FDT_CPPC_RPMI) += fdt_cppc_rpmi +carray-fdt_early_drivers-$(CONFIG_FDT_CPPC_RPMI) += fdt_cppc_rpmi libsbiutils-objs-$(CONFIG_FDT_CPPC_RPMI) += cppc/fdt_cppc_rpmi.o |