cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hfi_platform.c (1322B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright (c) 2020, The Linux Foundation. All rights reserved.
      4 */
      5#include "hfi_platform.h"
      6
      7const struct hfi_platform *hfi_platform_get(enum hfi_version version)
      8{
      9	switch (version) {
     10	case HFI_VERSION_4XX:
     11		return &hfi_plat_v4;
     12	case HFI_VERSION_6XX:
     13		return &hfi_plat_v6;
     14	default:
     15		break;
     16	}
     17
     18	return NULL;
     19}
     20
     21unsigned long
     22hfi_platform_get_codec_vpp_freq(enum hfi_version version, u32 codec, u32 session_type)
     23{
     24	const struct hfi_platform *plat;
     25	unsigned long freq = 0;
     26
     27	plat = hfi_platform_get(version);
     28	if (!plat)
     29		return 0;
     30
     31	if (plat->codec_vpp_freq)
     32		freq = plat->codec_vpp_freq(session_type, codec);
     33
     34	return freq;
     35}
     36
     37unsigned long
     38hfi_platform_get_codec_vsp_freq(enum hfi_version version, u32 codec, u32 session_type)
     39{
     40	const struct hfi_platform *plat;
     41	unsigned long freq = 0;
     42
     43	plat = hfi_platform_get(version);
     44	if (!plat)
     45		return 0;
     46
     47	if (plat->codec_vpp_freq)
     48		freq = plat->codec_vsp_freq(session_type, codec);
     49
     50	return freq;
     51}
     52
     53unsigned long
     54hfi_platform_get_codec_lp_freq(enum hfi_version version, u32 codec, u32 session_type)
     55{
     56	const struct hfi_platform *plat;
     57	unsigned long freq = 0;
     58
     59	plat = hfi_platform_get(version);
     60	if (!plat)
     61		return 0;
     62
     63	if (plat->codec_lp_freq)
     64		freq = plat->codec_lp_freq(session_type, codec);
     65
     66	return freq;
     67}
     68