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Diffstat (limited to 'arch/x86/kernel/acpi/cppc_msr.c')
-rw-r--r--arch/x86/kernel/acpi/cppc_msr.c58
1 files changed, 0 insertions, 58 deletions
diff --git a/arch/x86/kernel/acpi/cppc_msr.c b/arch/x86/kernel/acpi/cppc_msr.c
deleted file mode 100644
index 6fb478bf82fd..000000000000
--- a/arch/x86/kernel/acpi/cppc_msr.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * cppc_msr.c: MSR Interface for CPPC
- * Copyright (c) 2016, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- */
-
-#include <acpi/cppc_acpi.h>
-#include <asm/msr.h>
-
-/* Refer to drivers/acpi/cppc_acpi.c for the description of functions */
-
-bool cpc_ffh_supported(void)
-{
- return true;
-}
-
-int cpc_read_ffh(int cpunum, struct cpc_reg *reg, u64 *val)
-{
- int err;
-
- err = rdmsrl_safe_on_cpu(cpunum, reg->address, val);
- if (!err) {
- u64 mask = GENMASK_ULL(reg->bit_offset + reg->bit_width - 1,
- reg->bit_offset);
-
- *val &= mask;
- *val >>= reg->bit_offset;
- }
- return err;
-}
-
-int cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val)
-{
- u64 rd_val;
- int err;
-
- err = rdmsrl_safe_on_cpu(cpunum, reg->address, &rd_val);
- if (!err) {
- u64 mask = GENMASK_ULL(reg->bit_offset + reg->bit_width - 1,
- reg->bit_offset);
-
- val <<= reg->bit_offset;
- val &= mask;
- rd_val &= ~mask;
- rd_val |= val;
- err = wrmsrl_safe_on_cpu(cpunum, reg->address, rd_val);
- }
- return err;
-}