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Thu, 10 Aug 2023 02:39:22 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 1/9] drivers core: Add support for Wifi band RF mitigations Date: Thu, 10 Aug 2023 15:37:55 +0800 Message-ID: <20230810073803.1643451-2-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000971E8:EE_|SJ2PR12MB9241:EE_ X-MS-Office365-Filtering-Correlation-Id: 8d2f4a7d-e5f7-4dc4-f1c8-08db9974ef8f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(136003)(396003)(376002)(346002)(451199021)(82310400008)(1800799006)(186006)(36840700001)(40470700004)(46966006)(2906002)(336012)(478600001)(36756003)(16526019)(30864003)(26005)(1076003)(40480700001)(6666004)(7696005)(40460700003)(86362001)(316002)(8936002)(8676002)(7416002)(4326008)(70586007)(5660300002)(70206006)(41300700001)(81166007)(82740400003)(356005)(921005)(2616005)(426003)(36860700001)(44832011)(54906003)(47076005)(110136005)(83380400001)(83996005)(2101003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2023 07:39:31.6095 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8d2f4a7d-e5f7-4dc4-f1c8-08db9974ef8f X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000971E8.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB9241 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773828900875654160 X-GMAIL-MSGID: 1773828900875654160 Due to electrical and mechanical constraints in certain platform designs there may be likely interference of relatively high-powered harmonics of the (G-)DDR memory clocks with local radio module frequency bands used by Wifi 6/6e/7. To mitigate this, AMD has introduced a mechanism that devices can use to notify active use of particular frequencies so that other devices can make relative internal adjustments as necessary to avoid this resonance. In order for a device to support this, the expected flow for device driver or subsystems: Drivers/subsystems contributing frequencies: 1) During probe, check `wbrf_supported_producer` to see if WBRF supported for the device. 2) If adding frequencies, then call `wbrf_add_exclusion` with the start and end ranges of the frequencies. 3) If removing frequencies, then call `wbrf_remove_exclusion` with start and end ranges of the frequencies. Drivers/subsystems responding to frequencies: 1) During probe, check `wbrf_supported_consumer` to see if WBRF is supported for the device. 2) Call the `wbrf_register_notifier` to register for notifications of frequency changes from other devices. 3) Call the `wbrf_retrieve_exclusions` to retrieve the current exclusions range on receiving a notification and response correspondingly. Meanwhile a kernel parameter `wbrf` with default setting as "auto" is introduced to specify what the policy is. - With `wbrf=on`, the WBRF features will be enabled forcely. - With `wbrf=off`, the WBRF features will be disabled forcely. - With `wbrf=auto`, it will be up to the system to do proper checks to determine the WBRF features should be enabled or not. Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Co-developed-by: Evan Quan Signed-off-by: Evan Quan --- v4->v5: - promote this to be a more generic solution with input argument taking `struct device` and provide better scalability to support non-ACPI scenarios(Andrew) - update the APIs naming and some other minor fixes(Rafael) v6->v7: - revised the `struct wbrf_ranges_out` to be naturally aligned(Andrew) - revised some code comments(Andrew) --- .../admin-guide/kernel-parameters.txt | 9 + drivers/base/Makefile | 1 + drivers/base/wbrf.c | 280 ++++++++++++++++++ include/linux/wbrf.h | 47 +++ 4 files changed, 337 insertions(+) create mode 100644 drivers/base/wbrf.c create mode 100644 include/linux/wbrf.h diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a1457995fd41..21f73a0bbd0b 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -7152,3 +7152,12 @@ xmon commands. off xmon is disabled. + wbrf= [KNL] + Format: { on | auto | off } + Controls if WBRF features should be enabled or disabled + forcely. Default is auto. + on Force enable the WBRF features. + auto Up to the system to do proper checks to + determine the WBRF features should be enabled + or not. + off Force disable the WBRF features. diff --git a/drivers/base/Makefile b/drivers/base/Makefile index 3079bfe53d04..7b3cef898c19 100644 --- a/drivers/base/Makefile +++ b/drivers/base/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_GENERIC_MSI_IRQ) += platform-msi.o obj-$(CONFIG_GENERIC_ARCH_TOPOLOGY) += arch_topology.o obj-$(CONFIG_GENERIC_ARCH_NUMA) += arch_numa.o obj-$(CONFIG_ACPI) += physical_location.o +obj-y += wbrf.o obj-y += test/ diff --git a/drivers/base/wbrf.c b/drivers/base/wbrf.c new file mode 100644 index 000000000000..678f245c12c6 --- /dev/null +++ b/drivers/base/wbrf.c @@ -0,0 +1,280 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Wifi Band Exclusion Interface + * Copyright (C) 2023 Advanced Micro Devices + * + */ + +#include + +static BLOCKING_NOTIFIER_HEAD(wbrf_chain_head); +static DEFINE_MUTEX(wbrf_mutex); +static enum WBRF_POLICY_MODE { + WBRF_POLICY_FORCE_DISABLE, + WBRF_POLICY_AUTO, + WBRF_POLICY_FORCE_ENABLE, +} wbrf_policy = WBRF_POLICY_AUTO; + +static int __init parse_wbrf_policy_mode(char *p) +{ + if (!strncmp(p, "auto", 4)) + wbrf_policy = WBRF_POLICY_AUTO; + else if (!strncmp(p, "on", 2)) + wbrf_policy = WBRF_POLICY_FORCE_ENABLE; + else if (!strncmp(p, "off", 3)) + wbrf_policy = WBRF_POLICY_FORCE_DISABLE; + else + return -EINVAL; + + return 0; +} +early_param("wbrf", parse_wbrf_policy_mode); + +static struct exclusion_range_pool { + struct exclusion_range band_list[MAX_NUM_OF_WBRF_RANGES]; + u64 ref_counter[MAX_NUM_OF_WBRF_RANGES]; +} wbrf_pool; + +static int _wbrf_add_exclusion_ranges(struct wbrf_ranges_in *in) +{ + int i, j; + + for (i = 0; i < ARRAY_SIZE(in->band_list); i++) { + if (!in->band_list[i].start && + !in->band_list[i].end) + continue; + + for (j = 0; j < ARRAY_SIZE(wbrf_pool.band_list); j++) { + if (wbrf_pool.band_list[j].start == in->band_list[i].start && + wbrf_pool.band_list[j].end == in->band_list[i].end) { + wbrf_pool.ref_counter[j]++; + break; + } + } + if (j < ARRAY_SIZE(wbrf_pool.band_list)) + continue; + + for (j = 0; j < ARRAY_SIZE(wbrf_pool.band_list); j++) { + if (!wbrf_pool.band_list[j].start && + !wbrf_pool.band_list[j].end) { + wbrf_pool.band_list[j].start = in->band_list[i].start; + wbrf_pool.band_list[j].end = in->band_list[i].end; + wbrf_pool.ref_counter[j] = 1; + break; + } + } + if (j >= ARRAY_SIZE(wbrf_pool.band_list)) + return -ENOSPC; + } + + return 0; +} + +static int _wbrf_remove_exclusion_ranges(struct wbrf_ranges_in *in) +{ + int i, j; + + for (i = 0; i < ARRAY_SIZE(in->band_list); i++) { + if (!in->band_list[i].start && + !in->band_list[i].end) + continue; + + for (j = 0; j < ARRAY_SIZE(wbrf_pool.band_list); j++) { + if (wbrf_pool.band_list[j].start == in->band_list[i].start && + wbrf_pool.band_list[j].end == in->band_list[i].end) { + wbrf_pool.ref_counter[j]--; + if (!wbrf_pool.ref_counter[j]) { + wbrf_pool.band_list[j].start = 0; + wbrf_pool.band_list[j].end = 0; + } + break; + } + } + } + + return 0; +} + +static int _wbrf_retrieve_exclusion_ranges(struct wbrf_ranges_out *out) +{ + int out_idx = 0; + int i; + + memset(out, 0, sizeof(*out)); + + for (i = 0; i < ARRAY_SIZE(wbrf_pool.band_list); i++) { + if (!wbrf_pool.band_list[i].start && + !wbrf_pool.band_list[i].end) + continue; + + out->band_list[out_idx].start = wbrf_pool.band_list[i].start; + out->band_list[out_idx++].end = wbrf_pool.band_list[i].end; + } + + out->num_of_ranges = out_idx; + + return 0; +} + +/** + * wbrf_supported_system - Determine if the system supports WBRF features + * + * WBRF is used to mitigate devices that cause harmonic interference. + * This function will determine if the platform is able to support the + * WBRF features. + */ +static bool wbrf_supported_system(void) +{ + switch (wbrf_policy) { + case WBRF_POLICY_FORCE_ENABLE: + return true; + case WBRF_POLICY_FORCE_DISABLE: + return false; + case WBRF_POLICY_AUTO: + return false; + } + + return false; +} + +/** + * wbrf_supported_producer - Determine if the device should report frequencies + * + * @dev: device pointer + * + * WBRF is used to mitigate devices that cause harmonic interference. + * This function will determine if this device should report such frequencies. + */ +bool wbrf_supported_producer(struct device *dev) +{ + if (!wbrf_supported_system()) + return false; + + return true; +} +EXPORT_SYMBOL_GPL(wbrf_supported_producer); + +/** + * wbrf_add_exclusion - Add frequency ranges to the exclusion list + * + * @dev: device pointer + * @in: input structure containing the frequency ranges to be added + * + * Add frequencies into the exclusion list for supported consumers + * to react to. + */ +int wbrf_add_exclusion(struct device *dev, + struct wbrf_ranges_in *in) +{ + int r; + + mutex_lock(&wbrf_mutex); + + r = _wbrf_add_exclusion_ranges(in); + + mutex_unlock(&wbrf_mutex); + if (r) + return r; + + blocking_notifier_call_chain(&wbrf_chain_head, WBRF_CHANGED, NULL); + + return 0; +} +EXPORT_SYMBOL_GPL(wbrf_add_exclusion); + +/** + * wbrf_remove_exclusion - Remove frequency ranges from the exclusion list + * + * @dev: device pointer + * @in: input structure containing the frequency ranges to be removed + * + * Remove frequencies from the exclusion list for supported consumers + * to react to. + */ +int wbrf_remove_exclusion(struct device *dev, + struct wbrf_ranges_in *in) +{ + int r; + + mutex_lock(&wbrf_mutex); + + r = _wbrf_remove_exclusion_ranges(in); + + mutex_unlock(&wbrf_mutex); + if (r) + return r; + + blocking_notifier_call_chain(&wbrf_chain_head, WBRF_CHANGED, NULL); + + return 0; +} +EXPORT_SYMBOL_GPL(wbrf_remove_exclusion); + +/** + * wbrf_supported_consumer - Determine if the device should react to frequencies + * + * @dev: device pointer + * + * WBRF is used to mitigate devices that cause harmonic interference. + * This function will determine if this device should react to reports from + * other devices for such frequencies. + */ +bool wbrf_supported_consumer(struct device *dev) +{ + if (!wbrf_supported_system()) + return false; + + return true; +} +EXPORT_SYMBOL_GPL(wbrf_supported_consumer); + +/** + * wbrf_register_notifier - Register for notifications of frequency changes + * + * @nb: driver notifier block + * + * WBRF is used to mitigate devices that cause harmonic interference. + * This function will allow consumers to register for frequency notifications. + */ +int wbrf_register_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&wbrf_chain_head, nb); +} +EXPORT_SYMBOL_GPL(wbrf_register_notifier); + +/** + * wbrf_unregister_notifier - Unregister for notifications of frequency changes + * + * @nb: driver notifier block + * + * WBRF is used to mitigate devices that cause harmonic interference. + * This function will allow consumers to unregister for frequency notifications. + */ +int wbrf_unregister_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&wbrf_chain_head, nb); +} +EXPORT_SYMBOL_GPL(wbrf_unregister_notifier); + +/** + * wbrf_retrieve_exclusions - Retrieve the exclusion list + * + * @dev: device pointer + * @out: output structure containing the frequency ranges to be excluded + * + * Retrieve the current exclusion list + */ +int wbrf_retrieve_exclusions(struct device *dev, + struct wbrf_ranges_out *out) +{ + int r; + + mutex_lock(&wbrf_mutex); + + r = _wbrf_retrieve_exclusion_ranges(out); + + mutex_unlock(&wbrf_mutex); + + return r; +} +EXPORT_SYMBOL_GPL(wbrf_retrieve_exclusions); diff --git a/include/linux/wbrf.h b/include/linux/wbrf.h new file mode 100644 index 000000000000..476a28fec27a --- /dev/null +++ b/include/linux/wbrf.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Wifi Band Exclusion Interface + * Copyright (C) 2023 Advanced Micro Devices + */ + +#ifndef _LINUX_WBRF_H +#define _LINUX_WBRF_H + +#include + +/* Maximum number of wbrf ranges */ +#define MAX_NUM_OF_WBRF_RANGES 11 + +struct exclusion_range { + /* start and end point of the frequency range in Hz */ + u64 start; + u64 end; +}; + +struct wbrf_ranges_in { + /* valid entry: `start` and `end` filled with non-zero values */ + struct exclusion_range band_list[MAX_NUM_OF_WBRF_RANGES]; +}; + +struct wbrf_ranges_out { + u64 num_of_ranges; + struct exclusion_range band_list[MAX_NUM_OF_WBRF_RANGES]; +}; + +enum wbrf_notifier_actions { + WBRF_CHANGED, +}; + +bool wbrf_supported_producer(struct device *dev); +int wbrf_add_exclusion(struct device *adev, + struct wbrf_ranges_in *in); +int wbrf_remove_exclusion(struct device *dev, + struct wbrf_ranges_in *in); +int wbrf_retrieve_exclusions(struct device *dev, + struct wbrf_ranges_out *out); +bool wbrf_supported_consumer(struct device *dev); + +int wbrf_register_notifier(struct notifier_block *nb); +int wbrf_unregister_notifier(struct notifier_block *nb); + +#endif /* _LINUX_WBRF_H */ From patchwork Thu Aug 10 07:37:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133786 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp289737vqi; 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Thu, 10 Aug 2023 02:39:30 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 2/9] drivers core: add ACPI based WBRF mechanism introduced by AMD Date: Thu, 10 Aug 2023 15:37:56 +0800 Message-ID: <20230810073803.1643451-3-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000971E8:EE_|DS0PR12MB7747:EE_ X-MS-Office365-Filtering-Correlation-Id: 5a0ce06a-06d0-4efd-692a-08db9974fcf4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(136003)(39860400002)(376002)(346002)(396003)(451199021)(82310400008)(186006)(1800799006)(40470700004)(36840700001)(46966006)(36756003)(40460700003)(26005)(1076003)(8936002)(921005)(8676002)(356005)(82740400003)(40480700001)(316002)(86362001)(2616005)(478600001)(426003)(81166007)(41300700001)(336012)(16526019)(36860700001)(5660300002)(7696005)(44832011)(7416002)(30864003)(70586007)(70206006)(4326008)(2906002)(83380400001)(47076005)(6666004)(54906003)(110136005)(2101003)(83996005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2023 07:39:54.0783 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5a0ce06a-06d0-4efd-692a-08db9974fcf4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000971E8.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7747 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773833173110129199 X-GMAIL-MSGID: 1773833173110129199 AMD has introduced an ACPI based mechanism to support WBRF for some platforms with AMD dGPU + WLAN. This needs support from BIOS equipped with necessary AML implementations and dGPU firmwares. For those systems without the ACPI mechanism and developing solutions, user can use/fall-back the generic WBRF solution for diagnosing potential interference issues. And for the platform which does not equip with the necessary AMD ACPI implementations but with CONFIG_WBRF_AMD_ACPI built as 'y', it will fall back to generic WBRF solution if the `wbrf` is set as "on". Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Co-developed-by: Evan Quan Signed-off-by: Evan Quan --- v4->v5: - promote this to be a more generic solution with input argument taking `struct device` and provide better scalability to support non-ACPI scenarios(Andrew) - update the APIs naming and some other minor fixes(Rafael) v5->v6: - make the code more readable and some other fixes(Andrew) v6->v8: - drop CONFIG_WBRF_GENERIC(Mario) - add `wbrf` kernel parameter for policy control(Mario) --- drivers/acpi/Makefile | 2 + drivers/acpi/amd_wbrf.c | 294 ++++++++++++++++++++++++++++++++++ drivers/base/Kconfig | 20 +++ drivers/base/wbrf.c | 135 +++++++++++++--- include/linux/acpi_amd_wbrf.h | 25 +++ 5 files changed, 452 insertions(+), 24 deletions(-) create mode 100644 drivers/acpi/amd_wbrf.c create mode 100644 include/linux/acpi_amd_wbrf.h diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 3fc5a0d54f6e..9185d16e4495 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -133,3 +133,5 @@ obj-$(CONFIG_ARM64) += arm64/ obj-$(CONFIG_ACPI_VIOT) += viot.o obj-$(CONFIG_RISCV) += riscv/ + +obj-$(CONFIG_WBRF_AMD_ACPI) += amd_wbrf.o diff --git a/drivers/acpi/amd_wbrf.c b/drivers/acpi/amd_wbrf.c new file mode 100644 index 000000000000..a3390d91cbea --- /dev/null +++ b/drivers/acpi/amd_wbrf.c @@ -0,0 +1,294 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Wifi Band Exclusion Interface (AMD ACPI Implementation) + * Copyright (C) 2023 Advanced Micro Devices + * + */ + +#include +#include + +#define ACPI_AMD_WBRF_METHOD "\\WBRF" + +/* + * Functions bit vector for WBRF method + * + * Bit 0: Supported for any functions other than function 0. + * Bit 1: Function 1 (Add / Remove frequency) is supported. + * Bit 2: Function 2 (Get frequency list) is supported. + */ +#define WBRF_ENABLED 0x0 +#define WBRF_RECORD 0x1 +#define WBRF_RETRIEVE 0x2 + +/* record actions */ +#define WBRF_RECORD_ADD 0x0 +#define WBRF_RECORD_REMOVE 0x1 + +#define WBRF_REVISION 0x1 + +/* + * The data structure used for WBRF_RETRIEVE is not natually aligned. + * And unfortunately the design has been settled down. + */ +struct amd_wbrf_ranges_out { + u32 num_of_ranges; + struct exclusion_range band_list[MAX_NUM_OF_WBRF_RANGES]; +} __packed; + +static const guid_t wifi_acpi_dsm_guid = + GUID_INIT(0x7b7656cf, 0xdc3d, 0x4c1c, + 0x83, 0xe9, 0x66, 0xe7, 0x21, 0xde, 0x30, 0x70); + +static int wbrf_dsm(struct acpi_device *adev, u8 fn, + union acpi_object *argv4, + union acpi_object **out) +{ + union acpi_object *obj; + int rc; + + obj = acpi_evaluate_dsm(adev->handle, &wifi_acpi_dsm_guid, + WBRF_REVISION, fn, argv4); + if (!obj) + return -ENXIO; + + switch (obj->type) { + case ACPI_TYPE_BUFFER: + *out = obj; + return 0; + + case ACPI_TYPE_INTEGER: + rc = obj->integer.value ? -EINVAL : 0; + break; + + default: + rc = -EOPNOTSUPP; + } + + ACPI_FREE(obj); + + return rc; +} + +static int wbrf_record(struct acpi_device *adev, uint8_t action, + struct wbrf_ranges_in *in) +{ + union acpi_object argv4; + union acpi_object *tmp; + u32 num_of_ranges = 0; + u32 num_of_elements; + u32 arg_idx = 0; + u32 loop_idx; + int ret; + + if (!in) + return -EINVAL; + + for (loop_idx = 0; loop_idx < ARRAY_SIZE(in->band_list); + loop_idx++) + if (in->band_list[loop_idx].start && + in->band_list[loop_idx].end) + num_of_ranges++; + + /* + * Every range comes with two end points(start and end) and + * each of them is accounted as an element. Meanwhile the range + * count and action type are accounted as an element each. + * So, the total element count = 2 * num_of_ranges + 1 + 1. + */ + num_of_elements = 2 * num_of_ranges + 1 + 1; + + tmp = kcalloc(num_of_elements, sizeof(*tmp), GFP_KERNEL); + if (!tmp) + return -ENOMEM; + + argv4.package.type = ACPI_TYPE_PACKAGE; + argv4.package.count = num_of_elements; + argv4.package.elements = tmp; + + tmp[arg_idx].integer.type = ACPI_TYPE_INTEGER; + tmp[arg_idx++].integer.value = num_of_ranges; + tmp[arg_idx].integer.type = ACPI_TYPE_INTEGER; + tmp[arg_idx++].integer.value = action; + + for (loop_idx = 0; loop_idx < ARRAY_SIZE(in->band_list); + loop_idx++) { + if (!in->band_list[loop_idx].start || + !in->band_list[loop_idx].end) + continue; + + tmp[arg_idx].integer.type = ACPI_TYPE_INTEGER; + tmp[arg_idx++].integer.value = in->band_list[loop_idx].start; + tmp[arg_idx].integer.type = ACPI_TYPE_INTEGER; + tmp[arg_idx++].integer.value = in->band_list[loop_idx].end; + } + + ret = wbrf_dsm(adev, WBRF_RECORD, &argv4, NULL); + + kfree(tmp); + + return ret; +} + +int acpi_amd_wbrf_add_exclusion(struct device *dev, + struct wbrf_ranges_in *in) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (!adev) + return -ENODEV; + + return wbrf_record(adev, WBRF_RECORD_ADD, in); +} + +int acpi_amd_wbrf_remove_exclusion(struct device *dev, + struct wbrf_ranges_in *in) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (!adev) + return -ENODEV; + + return wbrf_record(adev, WBRF_RECORD_REMOVE, in); +} + +bool acpi_amd_wbrf_supported_system(void) +{ + acpi_status status; + acpi_handle handle; + + status = acpi_get_handle(NULL, ACPI_AMD_WBRF_METHOD, &handle); + + return ACPI_SUCCESS(status); +} + +bool acpi_amd_wbrf_supported_producer(struct device *dev) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (!adev) + return false; + + return acpi_check_dsm(adev->handle, &wifi_acpi_dsm_guid, + WBRF_REVISION, + BIT(WBRF_RECORD)); +} + +static union acpi_object * +acpi_evaluate_wbrf(acpi_handle handle, u64 rev, u64 func) +{ + acpi_status ret; + struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; + union acpi_object params[4]; + struct acpi_object_list input = { + .count = 4, + .pointer = params, + }; + + params[0].type = ACPI_TYPE_INTEGER; + params[0].integer.value = rev; + params[1].type = ACPI_TYPE_INTEGER; + params[1].integer.value = func; + params[2].type = ACPI_TYPE_PACKAGE; + params[2].package.count = 0; + params[2].package.elements = NULL; + params[3].type = ACPI_TYPE_STRING; + params[3].string.length = 0; + params[3].string.pointer = NULL; + + ret = acpi_evaluate_object(handle, "WBRF", &input, &buf); + if (ACPI_SUCCESS(ret)) + return (union acpi_object *)buf.pointer; + + return NULL; +} + +static bool check_acpi_wbrf(acpi_handle handle, u64 rev, u64 funcs) +{ + int i; + u64 mask = 0; + union acpi_object *obj; + + if (funcs == 0) + return false; + + obj = acpi_evaluate_wbrf(handle, rev, 0); + if (!obj) + return false; + + if (obj->type != ACPI_TYPE_BUFFER) + return false; + + /* + * Bit vector providing supported functions information. + * Each bit marks support for one specific function of the WBRF method. + */ + for (i = 0; i < obj->buffer.length && i < 8; i++) + mask |= (((u64)obj->buffer.pointer[i]) << (i * 8)); + + ACPI_FREE(obj); + + if ((mask & BIT(WBRF_ENABLED)) && + (mask & funcs) == funcs) + return true; + + return false; +} + +bool acpi_amd_wbrf_supported_consumer(struct device *dev) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (!adev) + return false; + + return check_acpi_wbrf(adev->handle, + WBRF_REVISION, + BIT(WBRF_RETRIEVE)); +} + +int acpi_amd_wbrf_retrieve_exclusions(struct device *dev, + struct wbrf_ranges_out *out) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + struct amd_wbrf_ranges_out acpi_out = {0}; + union acpi_object *obj; + + if (!adev) + return -ENODEV; + + obj = acpi_evaluate_wbrf(adev->handle, + WBRF_REVISION, + WBRF_RETRIEVE); + if (!obj) + return -EINVAL; + + /* + * The return buffer is with variable length and the format below: + * number_of_entries(1 DWORD): Number of entries + * start_freq of 1st entry(1 QWORD): Start frequency of the 1st entry + * end_freq of 1st entry(1 QWORD): End frequency of the 1st entry + * ... + * ... + * start_freq of the last entry(1 QWORD) + * end_freq of the last entry(1 QWORD) + * + * Thus the buffer length is determined by the number of entries. + * - For zero entry scenario, the buffer length will be 4 bytes. + * - For one entry scenario, the buffer length will be 20 bytes. + */ + if (obj->buffer.length > sizeof(acpi_out) || + obj->buffer.length < 4) { + dev_err(dev, "BIOS FUBAR, ignoring wrong sized WBRT information"); + ACPI_FREE(obj); + return -EINVAL; + } + memcpy(&acpi_out, obj->buffer.pointer, obj->buffer.length); + + out->num_of_ranges = acpi_out.num_of_ranges; + memcpy(out->band_list, acpi_out.band_list, sizeof(acpi_out.band_list)); + + ACPI_FREE(obj); + + return 0; +} diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 2b8fd6bb7da0..feb6f5625728 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -242,4 +242,24 @@ config FW_DEVLINK_SYNC_STATE_TIMEOUT command line option on every system/board your kernel is expected to work on. +menu "Wifi band RF mitigation mechanism" + +config WBRF_AMD_ACPI + bool "ACPI based mechanism introduced by AMD" + depends on ACPI + help + Wifi band RF mitigation mechanism allows multiple drivers from + different domains to notify the frequencies in use so that hardware + can be reconfigured to avoid harmonic conflicts. + + AMD has introduced an ACPI based mechanism to support WBRF for some + platforms with AMD dGPU and WLAN. This needs support from BIOS equipped + with necessary AML implementations and dGPU firmwares. + + Before enabling this ACPI based mechanism, it is suggested to confirm + with the hardware designer/provider first whether your platform + equipped with necessary BIOS and firmwares. + +endmenu + endmenu diff --git a/drivers/base/wbrf.c b/drivers/base/wbrf.c index 678f245c12c6..751e252d0039 100644 --- a/drivers/base/wbrf.c +++ b/drivers/base/wbrf.c @@ -6,9 +6,25 @@ */ #include +#include static BLOCKING_NOTIFIER_HEAD(wbrf_chain_head); + static DEFINE_MUTEX(wbrf_mutex); + +static struct exclusion_range_pool { + struct exclusion_range band_list[MAX_NUM_OF_WBRF_RANGES]; + u64 ref_counter[MAX_NUM_OF_WBRF_RANGES]; +} wbrf_pool; + +enum WBRF_SUPPORT_CHECK { + WBRF_SUPPORT_UNCHECKED, + WBRF_SUPPORT_NONE, + WBRF_SUPPORT_GENERIC, + WBRF_SUPPORT_OTHERS, +}; +static atomic_t wbrf_support_check = ATOMIC_INIT(WBRF_SUPPORT_UNCHECKED); + static enum WBRF_POLICY_MODE { WBRF_POLICY_FORCE_DISABLE, WBRF_POLICY_AUTO, @@ -30,11 +46,6 @@ static int __init parse_wbrf_policy_mode(char *p) } early_param("wbrf", parse_wbrf_policy_mode); -static struct exclusion_range_pool { - struct exclusion_range band_list[MAX_NUM_OF_WBRF_RANGES]; - u64 ref_counter[MAX_NUM_OF_WBRF_RANGES]; -} wbrf_pool; - static int _wbrf_add_exclusion_ranges(struct wbrf_ranges_in *in) { int i, j; @@ -121,20 +132,45 @@ static int _wbrf_retrieve_exclusion_ranges(struct wbrf_ranges_out *out) * * WBRF is used to mitigate devices that cause harmonic interference. * This function will determine if the platform is able to support the - * WBRF features. + * WBRF features. For example, for AMD ACPI implementation it should say + * true only when the necessary AML code/logic supporting wbrf feature + * available. */ -static bool wbrf_supported_system(void) +static enum WBRF_SUPPORT_CHECK wbrf_supported_system(void) { + enum WBRF_SUPPORT_CHECK support_check; + + support_check = atomic_read(&wbrf_support_check); + if (support_check != WBRF_SUPPORT_UNCHECKED) + return support_check; + + support_check = WBRF_SUPPORT_NONE; + switch (wbrf_policy) { case WBRF_POLICY_FORCE_ENABLE: - return true; +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + if (acpi_amd_wbrf_supported_system()) { + support_check = WBRF_SUPPORT_OTHERS; + break; + } + pr_warn_once("Force WBRF w/o acpi_amd_wbrf support\n"); + pr_warn_once("Fall back to generic version\n"); +#endif + support_check = WBRF_SUPPORT_GENERIC; + break; case WBRF_POLICY_FORCE_DISABLE: - return false; + break; case WBRF_POLICY_AUTO: - return false; +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + if (acpi_amd_wbrf_supported_system()) + support_check = WBRF_SUPPORT_OTHERS; +#endif + break; } - return false; + atomic_set(&wbrf_support_check, support_check); + + return support_check; } /** @@ -144,13 +180,22 @@ static bool wbrf_supported_system(void) * * WBRF is used to mitigate devices that cause harmonic interference. * This function will determine if this device should report such frequencies. + * For example, for AMD ACPI implementation it should say true only when the + * necessary AML code/logic supporting wbrf feature available for this device. */ bool wbrf_supported_producer(struct device *dev) { - if (!wbrf_supported_system()) + switch (wbrf_supported_system()) { + case WBRF_SUPPORT_GENERIC: + return true; + case WBRF_SUPPORT_OTHERS: +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + return acpi_amd_wbrf_supported_producer(dev); +#endif + fallthrough; + default: return false; - - return true; + } } EXPORT_SYMBOL_GPL(wbrf_supported_producer); @@ -166,11 +211,22 @@ EXPORT_SYMBOL_GPL(wbrf_supported_producer); int wbrf_add_exclusion(struct device *dev, struct wbrf_ranges_in *in) { - int r; + int r = -ENODEV; mutex_lock(&wbrf_mutex); - r = _wbrf_add_exclusion_ranges(in); + switch (wbrf_supported_system()) { + case WBRF_SUPPORT_OTHERS: +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + r = acpi_amd_wbrf_add_exclusion(dev, in); +#endif + break; + case WBRF_SUPPORT_GENERIC: + r = _wbrf_add_exclusion_ranges(in); + break; + default: + break; + } mutex_unlock(&wbrf_mutex); if (r) @@ -194,11 +250,22 @@ EXPORT_SYMBOL_GPL(wbrf_add_exclusion); int wbrf_remove_exclusion(struct device *dev, struct wbrf_ranges_in *in) { - int r; + int r = -ENODEV; mutex_lock(&wbrf_mutex); - r = _wbrf_remove_exclusion_ranges(in); + switch (wbrf_supported_system()) { + case WBRF_SUPPORT_OTHERS: +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + r = acpi_amd_wbrf_remove_exclusion(dev, in); +#endif + break; + case WBRF_SUPPORT_GENERIC: + r = _wbrf_remove_exclusion_ranges(in); + break; + default: + break; + } mutex_unlock(&wbrf_mutex); if (r) @@ -217,14 +284,23 @@ EXPORT_SYMBOL_GPL(wbrf_remove_exclusion); * * WBRF is used to mitigate devices that cause harmonic interference. * This function will determine if this device should react to reports from - * other devices for such frequencies. + * other devices for such frequencies. For example, for AMD ACPI implementation + * it should say true only when the necessary AML code/logic supporting wbrf + * feature available for this device. */ bool wbrf_supported_consumer(struct device *dev) { - if (!wbrf_supported_system()) + switch (wbrf_supported_system()) { + case WBRF_SUPPORT_GENERIC: + return true; + case WBRF_SUPPORT_OTHERS: +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + return acpi_amd_wbrf_supported_consumer(dev); +#endif + fallthrough; + default: return false; - - return true; + } } EXPORT_SYMBOL_GPL(wbrf_supported_consumer); @@ -267,11 +343,22 @@ EXPORT_SYMBOL_GPL(wbrf_unregister_notifier); int wbrf_retrieve_exclusions(struct device *dev, struct wbrf_ranges_out *out) { - int r; + int r = -ENODEV; mutex_lock(&wbrf_mutex); - r = _wbrf_retrieve_exclusion_ranges(out); + switch (wbrf_supported_system()) { + case WBRF_SUPPORT_OTHERS: +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) + r = acpi_amd_wbrf_retrieve_exclusions(dev, out); +#endif + break; + case WBRF_SUPPORT_GENERIC: + r = _wbrf_retrieve_exclusion_ranges(out); + break; + default: + break; + } mutex_unlock(&wbrf_mutex); diff --git a/include/linux/acpi_amd_wbrf.h b/include/linux/acpi_amd_wbrf.h new file mode 100644 index 000000000000..40c59e9f626d --- /dev/null +++ b/include/linux/acpi_amd_wbrf.h @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Wifi Band Exclusion Interface (AMD ACPI Implementation) + * Copyright (C) 2023 Advanced Micro Devices + * + */ + +#ifndef _ACPI_AMD_WBRF_H +#define _ACPI_AMD_WBRF_H + +#include + +#if IS_ENABLED(CONFIG_WBRF_AMD_ACPI) +bool acpi_amd_wbrf_supported_system(void); +bool acpi_amd_wbrf_supported_consumer(struct device *dev); +bool acpi_amd_wbrf_supported_producer(struct device *dev); +int acpi_amd_wbrf_remove_exclusion(struct device *dev, + struct wbrf_ranges_in *in); +int acpi_amd_wbrf_add_exclusion(struct device *dev, + struct wbrf_ranges_in *in); +int acpi_amd_wbrf_retrieve_exclusions(struct device *dev, + struct wbrf_ranges_out *out); +#endif + +#endif /* _ACPI_AMD_WBRF_H */ From patchwork Thu Aug 10 07:37:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133754 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp262330vqi; Thu, 10 Aug 2023 01:11:59 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFcEqpqw5wGErK7iOP4pe5fJJHElkGBGirGVaDuwF0PhB2LDnDwqlmr89yhu7D1PxOCSS+q X-Received: by 2002:a17:907:2718:b0:99b:c1af:17ea with SMTP id w24-20020a170907271800b0099bc1af17eamr1511340ejk.15.1691655119546; Thu, 10 Aug 2023 01:11:59 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1691655119; cv=pass; d=google.com; s=arc-20160816; b=voApYnGGW1zUk6c9oR+/NU5Fta2S0xgCSb2LASsMET7IepH0bB9rd0sd9XuouXcbUF XsXHPQh3QC/5y72DT2bPHI0T+0vom7UHLxJjojnJADy/mOiF1DHm6r+godSPT/cgVbI9 vpQT814Ay1YnZv3EBRU03LiSzk9BoxLICdnJDcA79wvs3bxzLkFkGHj2q2Wl4q/c0rFQ uc8Ch2+A3KL/DzWSS7WtTfojxtBKXEWtZ3zXJ22JAdJ5EVIhh0vqVB2C1U9RBHRXVllV IiINKxCcSkM5ueYKyATvlHDETO8536Gh3eQx0kJHXKJix2BqTc/hUlRw7WdmdzNVqPKv xLxg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=iiMLnjCApacLG4wsAzcrg+11GjFpwA3RTl1Uo2H/Zug=; fh=BMiHwfcZy3CkrLz4T1n4ZF3IsE9w9b8O5ORIH9gIskY=; b=A8gcW3+XLZD1UcsYz2wTPQ9IIf77yQQ6hT7aYtEOTEuL4UeGkTOdsDDzJ7dH0hnSaD +ZiyEyzhFYDgA3bGcDxPOCoBD9KKHRyzCchW3q7rZFnz+Mz9tVM+JPMR3Dbuyym4SXOD me2clBWgOefGLDJ1TP57XikDErUfBlkx4VVlzvk+qWHlSP79TGUWsO5VyNXVsj81kbet MObwjCMBQ1MBcyftc1oBAxFdNfjzrCKvTIIYToN4G3yvuOnrlMN7Nqu8lod6QpdNRlOt V8CRe70NXu7AxBf86yAV4z2ovOEJOe60tDJqbze0SZtb4w6ub89t8zRRAW9CAyT9KH8O VdaQ== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=iSTY9X6U; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. 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Thu, 10 Aug 2023 02:39:52 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan Subject: [PATCH V8 3/9] cfg80211: expose nl80211_chan_width_to_mhz for wide sharing Date: Thu, 10 Aug 2023 15:37:57 +0800 Message-ID: <20230810073803.1643451-4-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000971E2:EE_|CH0PR12MB5060:EE_ X-MS-Office365-Filtering-Correlation-Id: 32f28ec9-575f-49c8-53c9-08db997504f5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(346002)(136003)(396003)(376002)(186006)(451199021)(1800799006)(82310400008)(36840700001)(40470700004)(46966006)(44832011)(2906002)(426003)(2616005)(110136005)(54906003)(7696005)(83380400001)(5660300002)(16526019)(7416002)(47076005)(36860700001)(86362001)(40460700003)(8936002)(8676002)(336012)(26005)(1076003)(41300700001)(316002)(478600001)(36756003)(4326008)(70206006)(70586007)(40480700001)(82740400003)(921005)(356005)(81166007)(36900700001)(2101003)(83996005);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2023 07:40:07.5060 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 32f28ec9-575f-49c8-53c9-08db997504f5 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000971E2.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR12MB5060 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773828958947590118 X-GMAIL-MSGID: 1773828958947590118 The newly added WBRF feature needs this interface for channel width calculation. Signed-off-by: Evan Quan --- include/net/cfg80211.h | 8 ++++++++ net/wireless/chan.c | 3 ++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 7c7d03aa9d06..f50508e295db 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -920,6 +920,14 @@ const struct cfg80211_chan_def * cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, const struct cfg80211_chan_def *chandef2); +/** + * nl80211_chan_width_to_mhz - get the channel width in Mhz + * @chan_width: the channel width from &enum nl80211_chan_width + * Return: channel width in Mhz if the chan_width from &enum nl80211_chan_width + * is valid. -1 otherwise. + */ +int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width); + /** * cfg80211_chandef_valid - check if a channel definition is valid * @chandef: the channel definition to check diff --git a/net/wireless/chan.c b/net/wireless/chan.c index 0b7e81db383d..227db04eac42 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -141,7 +141,7 @@ static bool cfg80211_edmg_chandef_valid(const struct cfg80211_chan_def *chandef) return true; } -static int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width) +int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width) { int mhz; @@ -190,6 +190,7 @@ static int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width) } return mhz; } +EXPORT_SYMBOL(nl80211_chan_width_to_mhz); static int cfg80211_chandef_get_width(const struct cfg80211_chan_def *c) { From patchwork Thu Aug 10 07:37:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133779 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp288024vqi; Thu, 10 Aug 2023 02:15:10 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFkz4IQFBxzIzXBLfAsDANQJYffDLzsvmSWbNxNyQTqTmyFb66S1R4Y9SPWdrK81jap56yt X-Received: by 2002:a05:6871:4cc:b0:1ad:5317:1f7d with SMTP id n12-20020a05687104cc00b001ad53171f7dmr2016273oai.39.1691658910232; Thu, 10 Aug 2023 02:15:10 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1691658910; cv=pass; d=google.com; s=arc-20160816; b=jUj583v6klmtMnSFQz1nfwvpR3R5ktBVvLJ5o1WTZZYdsU+DZfPVuOOQKVWiboYMen KmBlaBIJgC2WcGSAVdDiH+JiQcBtz+aCPDBd8pKyMvRdsnsAj32l3rX9Rxjli0EYikN1 hRn4irDYVLInY23rYPA88R6FLWC2amqJUfeER9+7oCZ6nBYB8SPkCjGUbB6wraghgG5f 2ggIGj2Xtlg5wWLrxoOiOY1sIsgUqIGeQg13hzS2ZENicT83OD+O0FPhE1Y3RKm6G2uM g1l1UbWut6lZsdLhyefu+gvXDaRpCgcvM3ZObbURbePuDRZMtDLIsdbg/NMUKuxz+oGS RsVw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=Q5LG80jWP0p8zL8areOorSlwoEVqVFSCwvMCtSNmvkE=; fh=WpfgbTJceSODJ2RxjBwoHNUpZn2apRLDTiiS5YGrd/M=; b=ATduhhwhzrOtfvHxK6PgQeZC9+qgfzdOopvT9YrzdUW9ElBBmxIi8UUyDfjiYGfAUk xEhs7aGYpy+nF7XFVzPQQpZJD40VDCzMSShi249GnWIsapbcp5BP7va9fNU0vRY2tSjG LYTbCalj1S9Y42uCEUgUfU2p1Gd4wdDJVCWcnAYTBP56gBpepLkavKeIPoEULWSD+zSe kjBh6a+5PSqQsvBD/fBIxwVW008D7pFyg+9HxH0/0/L7yIt8mapFNybA0LMKf4xTWXUI 2Y2XCxl3/KigUBMN+oJIuS8VhcoZbW+OoPyx0vUe88lY48AZ3qbUbjYudjdEpKblfGR3 UpJg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=V4qLd1Pb; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. 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Thu, 10 Aug 2023 02:40:02 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 4/9] wifi: mac80211: Add support for WBRF features Date: Thu, 10 Aug 2023 15:37:58 +0800 Message-ID: <20230810073803.1643451-5-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000971E8:EE_|SJ1PR12MB6315:EE_ X-MS-Office365-Filtering-Correlation-Id: 735a28d7-2d3e-4aae-f13c-08db9975073e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(396003)(376002)(346002)(136003)(39860400002)(186006)(82310400008)(1800799006)(451199021)(40470700004)(46966006)(36840700001)(426003)(40460700003)(1076003)(26005)(82740400003)(83380400001)(2906002)(36756003)(336012)(356005)(921005)(81166007)(16526019)(110136005)(40480700001)(54906003)(2616005)(36860700001)(7416002)(44832011)(6666004)(7696005)(5660300002)(316002)(478600001)(41300700001)(8676002)(8936002)(86362001)(4326008)(70586007)(70206006)(47076005)(36900700001)(83996005)(2101003);DIR:OUT;SFP:1101; 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So that, other drivers responding to the frequencies can take proper actions to mitigate possible interference. Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Co-developed-by: Evan Quan Signed-off-by: Evan Quan --- v1->v2: - place the new added member(`wbrf_supported`) in ieee80211_local(Johannes) - handle chandefs change scenario properly(Johannes) - some minor fixes around code sharing and possible invalid input checks(Johannes) v2->v3: - drop unnecessary input checks and intermediate APIs(Mario) - Separate some mac80211 common code(Mario, Johannes) v3->v4: - some minor fixes around return values(Johannes) --- include/linux/ieee80211.h | 1 + net/mac80211/Makefile | 2 + net/mac80211/chan.c | 9 ++++ net/mac80211/ieee80211_i.h | 9 ++++ net/mac80211/main.c | 2 + net/mac80211/wbrf.c | 103 +++++++++++++++++++++++++++++++++++++ 6 files changed, 126 insertions(+) create mode 100644 net/mac80211/wbrf.c diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 4b998090898e..f995d06da87f 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -4335,6 +4335,7 @@ static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size) /* convert frequencies */ #define MHZ_TO_KHZ(freq) ((freq) * 1000) #define KHZ_TO_MHZ(freq) ((freq) / 1000) +#define KHZ_TO_HZ(freq) ((freq) * 1000) #define PR_KHZ(f) KHZ_TO_MHZ(f), f % 1000 #define KHZ_F "%d.%03d" diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index b8de44da1fb8..d46c36f55fd3 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -65,4 +65,6 @@ rc80211_minstrel-$(CONFIG_MAC80211_DEBUGFS) += \ mac80211-$(CONFIG_MAC80211_RC_MINSTREL) += $(rc80211_minstrel-y) +mac80211-y += wbrf.o + ccflags-y += -DDEBUG diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 68952752b599..458469c224ae 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -506,11 +506,16 @@ static void _ieee80211_change_chanctx(struct ieee80211_local *local, WARN_ON(!cfg80211_chandef_compatible(&ctx->conf.def, chandef)); + ieee80211_remove_wbrf(local, &ctx->conf.def); + ctx->conf.def = *chandef; /* check if min chanctx also changed */ changed = IEEE80211_CHANCTX_CHANGE_WIDTH | _ieee80211_recalc_chanctx_min_def(local, ctx, rsvd_for); + + ieee80211_add_wbrf(local, &ctx->conf.def); + drv_change_chanctx(local, ctx, changed); if (!local->use_chanctx) { @@ -668,6 +673,8 @@ static int ieee80211_add_chanctx(struct ieee80211_local *local, lockdep_assert_held(&local->mtx); lockdep_assert_held(&local->chanctx_mtx); + ieee80211_add_wbrf(local, &ctx->conf.def); + if (!local->use_chanctx) local->hw.conf.radar_enabled = ctx->conf.radar_enabled; @@ -748,6 +755,8 @@ static void ieee80211_del_chanctx(struct ieee80211_local *local, } ieee80211_recalc_idle(local); + + ieee80211_remove_wbrf(local, &ctx->conf.def); } static void ieee80211_free_chanctx(struct ieee80211_local *local, diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 91633a0b723e..719f2c892132 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1600,6 +1600,8 @@ struct ieee80211_local { /* extended capabilities provided by mac80211 */ u8 ext_capa[8]; + + bool wbrf_supported; }; static inline struct ieee80211_sub_if_data * @@ -2638,4 +2640,11 @@ ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, u8 eht_cap_len, struct link_sta_info *link_sta); + +void ieee80211_check_wbrf_support(struct ieee80211_local *local); +void ieee80211_add_wbrf(struct ieee80211_local *local, + struct cfg80211_chan_def *chandef); +void ieee80211_remove_wbrf(struct ieee80211_local *local, + struct cfg80211_chan_def *chandef); + #endif /* IEEE80211_I_H */ diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 24315d7b3126..b20bdaac84db 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1396,6 +1396,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) debugfs_hw_add(local); rate_control_add_debugfs(local); + ieee80211_check_wbrf_support(local); + rtnl_lock(); wiphy_lock(hw->wiphy); diff --git a/net/mac80211/wbrf.c b/net/mac80211/wbrf.c new file mode 100644 index 000000000000..7ddb29d128b1 --- /dev/null +++ b/net/mac80211/wbrf.c @@ -0,0 +1,103 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Wifi Band Exclusion Interface for WWAN + * Copyright (C) 2023 Advanced Micro Devices + * + */ + +#include +#include +#include "ieee80211_i.h" + +void ieee80211_check_wbrf_support(struct ieee80211_local *local) +{ + struct wiphy *wiphy = local->hw.wiphy; + struct device *dev; + + if (!wiphy) + return; + + dev = wiphy->dev.parent; + if (!dev) + return; + + local->wbrf_supported = wbrf_supported_producer(dev); + dev_dbg(dev, "WBRF is %s supported\n", + local->wbrf_supported ? "" : "not"); +} + +static void get_chan_freq_boundary(u32 center_freq, + u32 bandwidth, + u64 *start, + u64 *end) +{ + bandwidth = MHZ_TO_KHZ(bandwidth); + center_freq = MHZ_TO_KHZ(center_freq); + + *start = center_freq - bandwidth / 2; + *end = center_freq + bandwidth / 2; + + /* Frequency in HZ is expected */ + *start = KHZ_TO_HZ(*start); + *end = KHZ_TO_HZ(*end); +} + +static void wbrf_get_ranges_from_chandef(struct cfg80211_chan_def *chandef, + struct wbrf_ranges_in *ranges_in) +{ + u64 start_freq1, end_freq1; + u64 start_freq2, end_freq2; + int bandwidth; + + bandwidth = nl80211_chan_width_to_mhz(chandef->width); + + get_chan_freq_boundary(chandef->center_freq1, + bandwidth, + &start_freq1, + &end_freq1); + + ranges_in->band_list[0].start = start_freq1; + ranges_in->band_list[0].end = end_freq1; + + if (chandef->width == NL80211_CHAN_WIDTH_80P80) { + get_chan_freq_boundary(chandef->center_freq2, + bandwidth, + &start_freq2, + &end_freq2); + + ranges_in->band_list[1].start = start_freq2; + ranges_in->band_list[1].end = end_freq2; + } +} + +void ieee80211_add_wbrf(struct ieee80211_local *local, + struct cfg80211_chan_def *chandef) +{ + struct wbrf_ranges_in ranges_in = {0}; + struct device *dev; + + if (!local->wbrf_supported) + return; + + dev = local->hw.wiphy->dev.parent; + + wbrf_get_ranges_from_chandef(chandef, &ranges_in); + + wbrf_add_exclusion(dev, &ranges_in); +} + +void ieee80211_remove_wbrf(struct ieee80211_local *local, + struct cfg80211_chan_def *chandef) +{ + struct wbrf_ranges_in ranges_in = {0}; + struct device *dev; + + if (!local->wbrf_supported) + return; + + dev = local->hw.wiphy->dev.parent; + + wbrf_get_ranges_from_chandef(chandef, &ranges_in); + + wbrf_remove_exclusion(dev, &ranges_in); +} From patchwork Thu Aug 10 07:37:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133772 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp283454vqi; Thu, 10 Aug 2023 02:05:18 -0700 (PDT) X-Google-Smtp-Source: AGHT+IE5HkkPblCzaKNmEzOsZZNqJellxrBomeMPMj0mvdPYgMSE0Z5I2ldFTXxj6qTzhIfdsnCh X-Received: by 2002:a17:902:6901:b0:1b6:6e3a:77fb with SMTP id j1-20020a170902690100b001b66e3a77fbmr1721851plk.2.1691658318251; Thu, 10 Aug 2023 02:05:18 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1691658318; cv=pass; d=google.com; s=arc-20160816; b=FzfXg5CZjV1bv7BmUMcL1ZM2antPw4VKAw6jgfv0AJuOPVbxLXeMpO2+cRBY5H50IM wZK7uipwJmxa1zRxtHZGLbSoQIdHoHYt4yk7Fn8KO5MaiM10YS+CgkB80+RVwl1eHV0u Ga+5aqlSbK9tJWnBjoR+XObcE7P3ocjHn/iVzBtfO/o2Y+3d7WHKTW7+jui0EVDMAWEA NOl/cUeuy6rf4aZaPW99AJ6FFMg7ZVdihIoHIHtw9xGjagGC48+7MdhRIr/xW8UrT6T7 zwQMu3bRij9cbtRzMrswaRdor5Lvbble2+kpOk+Hh/88hBGuEzR62hHvzypgMvrha63V C0CQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=8KVZcsU5wLNmNsZV2fXC998Zi1YeRhJaLYvlo00xQX4=; fh=WpfgbTJceSODJ2RxjBwoHNUpZn2apRLDTiiS5YGrd/M=; b=bZIL1CGbCzQU4PN9DA8wE6toAYNyF+C3ARn1bQCkGiCIUzax1VDy+XYdvCTc/kccjP C3X1fSUr2pl3k07fwNruAyKz5HaJ/9YgPg8xluhq4pmMto+Rc0DfoL8bmqcYA4MyHRNn jI26YtadllDddmncyblf4HLHrWA+3nMBL9v4XfMXXXlwW0QsaxmBAGsNRi9sOKkhLYmd B3AtRpX2qHtLJN58KRDr0xWOxC6yMNIHk5EwZ7OlEUgeD49cnSavHhAZUNP9/Qx9eoTS XAzW9Cc1/kHzVsSlpplHXxWvw/6K955KzywwD03vG4hUG6brNVzz+owz3wtKEpZK9Zr/ 9LXw== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=zvri3Stk; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. 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Thu, 10 Aug 2023 02:40:11 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 5/9] drm/amd/pm: update driver_if and ppsmc headers for coming wbrf feature Date: Thu, 10 Aug 2023 15:37:59 +0800 Message-ID: <20230810073803.1643451-6-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000971E8:EE_|PH8PR12MB6673:EE_ X-MS-Office365-Filtering-Correlation-Id: b5feb5f2-f65c-4ffc-d489-08db99750d15 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: PBCpXufreKHvnw3zfSJjxCA+OkQnz0OqWhmpr0+u1NsdDOlp1o2vGiqrmakjBkn27upAgM78GM4soXkSM9HG+1jALdZgX06Yav6OsqFQA9XD56A68sKrHPvE2158p+lhHyDMqoPbRaGUofU+9tKdhL1UZ3JnT10affX99ow32rBF1vahTjwouyqULGPtNXeHQNfKPXmP/eA5pFcYfxl8FozBD12n5i6AS/joN2MuzGJcHu72u0EQFGMgQ1RCOjt0e3K1GsJYpwPk7swCDAfnXHNyNXOuyxGHITGmIXPRFW5Tw1d2ksfymHBidKOO+OddSjr2F7aEpPjbiT3UpyHAiNWTxko1LSY743ML8auzkTaBYjl52UmgpCQVHqMh71WSaERX/i9pNDzjxCn6ssq33Z+bCMoBGtrVOPBvm8dfaU554z26t7zKL9owLG+Q0RKnN3zdT5jGT2+MYDOyzW1xUY4BwIpO3deKCmeffdZMKg7NwekrXFIBP79Z3ZUY/5+EGrm5MXQgBwxe/ftfJcx5WX7KcpH/LF0HGPcanzmwhQOb7XNTiCEGQielUIotvCEa/Me2m3WC49MC/vMNjhzXX8D7pZQwM6TRDb2AXEsVfF/gET3WDAc+CvWdFkMdRXxymLaIuOLW4c3VlzK8YAnV70K8zz/GoX6xULQvetZoaVMU5usMWf32vkpiurSjBDuhd5Lntfs/S4RF+DPKUgD5GS2U8fTshQaqnFeFfRHR8eHDLDdiTdYcJkZJbuSHUzG6F10ZFI9hyUftd3qBGFPtBa5KYlNYcn/ZfEk7dF/MjDT/uy7zWL7NJHiyMVHYueg4swKXu0U+egwyzyU79kw5kA== X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(396003)(39860400002)(346002)(136003)(376002)(1800799006)(82310400008)(186006)(451199021)(40470700004)(36840700001)(46966006)(4326008)(8676002)(8936002)(70586007)(15650500001)(6666004)(316002)(70206006)(5660300002)(2906002)(41300700001)(44832011)(7416002)(110136005)(40460700003)(82740400003)(478600001)(54906003)(40480700001)(1076003)(36756003)(7696005)(336012)(426003)(2616005)(36860700001)(83380400001)(47076005)(26005)(86362001)(921005)(81166007)(356005)(16526019)(36900700001)(83996005)(2101003);DIR:OUT;SFP:1101; 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Signed-off-by: Evan Quan Reviewed-by: Mario Limonciello --- .../pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_0.h | 14 +++++++++++++- .../pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_7.h | 14 +++++++++++++- .../amd/pm/swsmu/inc/pmfw_if/smu_v13_0_0_ppsmc.h | 3 ++- .../amd/pm/swsmu/inc/pmfw_if/smu_v13_0_7_ppsmc.h | 3 ++- 4 files changed, 30 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_0.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_0.h index 9dd1ed5b8940..e481407b6584 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_0.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_0.h @@ -391,6 +391,17 @@ typedef struct { EccInfo_t EccInfo[24]; } EccInfoTable_t; +typedef struct { + uint16_t LowFreq; + uint16_t HighFreq; +} WifiOneBand_t; + +typedef struct { + uint32_t WifiBandEntryNum; + WifiOneBand_t WifiBandEntry[11]; + uint32_t MmHubPadding[8]; +} WifiBandEntryTable_t; + //D3HOT sequences typedef enum { BACO_SEQUENCE, @@ -1615,7 +1626,8 @@ typedef struct { #define TABLE_I2C_COMMANDS 9 #define TABLE_DRIVER_INFO 10 #define TABLE_ECCINFO 11 -#define TABLE_COUNT 12 +#define TABLE_WIFIBAND 12 +#define TABLE_COUNT 13 //IH Interupt ID #define IH_INTERRUPT_ID_TO_DRIVER 0xFE diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_7.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_7.h index 62b7c0daff68..1530ca002c6c 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_7.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu13_driver_if_v13_0_7.h @@ -392,6 +392,17 @@ typedef struct { EccInfo_t EccInfo[24]; } EccInfoTable_t; +typedef struct { + uint16_t LowFreq; + uint16_t HighFreq; +} WifiOneBand_t; + +typedef struct { + uint32_t WifiBandEntryNum; + WifiOneBand_t WifiBandEntry[11]; + uint32_t MmHubPadding[8]; +} WifiBandEntryTable_t; + //D3HOT sequences typedef enum { BACO_SEQUENCE, @@ -1605,7 +1616,8 @@ typedef struct { #define TABLE_I2C_COMMANDS 9 #define TABLE_DRIVER_INFO 10 #define TABLE_ECCINFO 11 -#define TABLE_COUNT 12 +#define TABLE_WIFIBAND 12 +#define TABLE_COUNT 13 //IH Interupt ID #define IH_INTERRUPT_ID_TO_DRIVER 0xFE diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_0_ppsmc.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_0_ppsmc.h index 10cff75b44d5..c98cc32d11bd 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_0_ppsmc.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_0_ppsmc.h @@ -138,7 +138,8 @@ #define PPSMC_MSG_SetBadMemoryPagesRetiredFlagsPerChannel 0x4A #define PPSMC_MSG_SetPriorityDeltaGain 0x4B #define PPSMC_MSG_AllowIHHostInterrupt 0x4C -#define PPSMC_Message_Count 0x4D +#define PPSMC_MSG_EnableUCLKShadow 0x51 +#define PPSMC_Message_Count 0x52 //Debug Dump Message #define DEBUGSMC_MSG_TestMessage 0x1 diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_7_ppsmc.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_7_ppsmc.h index 6aaefca9b595..a6bf9cdd130e 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_7_ppsmc.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_7_ppsmc.h @@ -134,6 +134,7 @@ #define PPSMC_MSG_SetBadMemoryPagesRetiredFlagsPerChannel 0x4A #define PPSMC_MSG_SetPriorityDeltaGain 0x4B #define PPSMC_MSG_AllowIHHostInterrupt 0x4C -#define PPSMC_Message_Count 0x4D +#define PPSMC_MSG_EnableUCLKShadow 0x51 +#define PPSMC_Message_Count 0x52 #endif From patchwork Thu Aug 10 07:38:00 2023 Content-Type: text/plain; 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Signed-off-by: Evan Quan Reviewed-by: Mario Limonciello --- v1->v2: - update the prompt for feature support(Lijo) --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 17 ++ drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 194 ++++++++++++++++++ drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h | 23 +++ drivers/gpu/drm/amd/pm/swsmu/smu_internal.h | 3 + 5 files changed, 239 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index a3b86b86dc47..2bfc9111ab00 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -247,6 +247,8 @@ extern int amdgpu_sg_display; extern int amdgpu_user_partt_mode; +extern int amdgpu_wbrf; + #define AMDGPU_VM_MAX_NUM_CTX 4096 #define AMDGPU_SG_THRESHOLD (256*1024*1024) #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000 diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 0593ef8fe0a6..1c574bd3b60d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -195,6 +195,7 @@ int amdgpu_use_xgmi_p2p = 1; int amdgpu_vcnfw_log; int amdgpu_sg_display = -1; /* auto */ int amdgpu_user_partt_mode = AMDGPU_AUTO_COMPUTE_PARTITION_MODE; +int amdgpu_wbrf = -1; static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work); @@ -981,6 +982,22 @@ module_param_named(user_partt_mode, amdgpu_user_partt_mode, uint, 0444); module_param(enforce_isolation, bool, 0444); MODULE_PARM_DESC(enforce_isolation, "enforce process isolation between graphics and compute . enforce_isolation = on"); +/** + * DOC: wbrf (int) + * Enable Wifi RFI interference mitigation feature. + * Due to electrical and mechanical constraints there may be likely interference of + * relatively high-powered harmonics of the (G-)DDR memory clocks with local radio + * module frequency bands used by Wifi 6/6e/7. To mitigate the possible RFI interference, + * with this feature enabled, PMFW will use either “shadowed P-State” or “P-State” based + * on active list of frequencies in-use (to be avoided) as part of initial setting or + * P-state transition. However, there may be potential performance impact with this + * feature enabled. + * (0 = disabled, 1 = enabled, -1 = auto (default setting, will be enabled if supported)) + */ +MODULE_PARM_DESC(wbrf, + "Enable Wifi RFI interference mitigation (0 = disabled, 1 = enabled, -1 = auto(default)"); +module_param_named(wbrf, amdgpu_wbrf, int, 0444); + /* These devices are not supported by amdgpu. * They are supported by the mach64, r128, radeon drivers */ diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index ce41a8309582..163037bd6d16 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -1228,6 +1228,173 @@ static int smu_get_thermal_temperature_range(struct smu_context *smu) return ret; } +/** + * smu_wbrf_handle_exclusion_ranges - consume the wbrf exclusion ranges + * + * @smu: smu_context pointer + * + * Retrieve the wbrf exclusion ranges and send them to PMFW for proper handling. + * Returns 0 on success, error on failure. + */ +static int smu_wbrf_handle_exclusion_ranges(struct smu_context *smu) +{ + struct wbrf_ranges_out wbrf_exclusion = {0}; + struct exclusion_range *wifi_bands = wbrf_exclusion.band_list; + struct amdgpu_device *adev = smu->adev; + uint64_t start, end; + int ret, i, j; + + ret = wbrf_retrieve_exclusions(adev->dev, &wbrf_exclusion); + if (ret) { + dev_err(adev->dev, "Failed to retrieve exclusion ranges!\n"); + return ret; + } + + /* + * The exclusion ranges array we got might be filled with holes and duplicate + * entries. For example: + * {(2400, 2500), (0, 0), (6882, 6962), (2400, 2500), (0, 0), (6117, 6189), (0, 0)...} + * We need to do some sortups to eliminate those holes and duplicate entries. + * Expected output: {(2400, 2500), (6117, 6189), (6882, 6962), (0, 0)...} + */ + for (i = 0; i < MAX_NUM_OF_WBRF_RANGES; i++) { + start = wifi_bands[i].start; + end = wifi_bands[i].end; + + /* get the last valid entry to fill the intermediate hole */ + if (!start && !end) { + for (j = MAX_NUM_OF_WBRF_RANGES - 1; j > i; j--) + if (wifi_bands[j].start && + wifi_bands[j].end) + break; + + if (j > i) { + wifi_bands[i].start = wifi_bands[j].start; + wifi_bands[i].end = wifi_bands[j].end; + wifi_bands[j].start = 0; + wifi_bands[j].end = 0; + } + + continue; + } + + /* eliminate duplicate entries */ + for (j = i + 1; j < MAX_NUM_OF_WBRF_RANGES; j++) { + if ((wifi_bands[j].start == start) && + (wifi_bands[j].end == end)) { + wifi_bands[j].start = 0; + wifi_bands[j].end = 0; + continue; + } + } + } + + /* Send the sorted wifi_bands to PMFW */ + ret = smu_set_wbrf_exclusion_ranges(smu, wifi_bands); + /* Give it another chance */ + if (unlikely(ret == -EBUSY)) { + mdelay(5); + ret = smu_set_wbrf_exclusion_ranges(smu, wifi_bands); + } + + return ret; +} + +/** + * smu_wbrf_event_handler - handle notify events + * + * @nb: notifier block + * @action: event type + * @data: event data + * + * Calls relevant amdgpu function in response to wbrf event + * notification from kernel. + */ +static int smu_wbrf_event_handler(struct notifier_block *nb, + unsigned long action, void *_arg) +{ + struct smu_context *smu = container_of(nb, struct smu_context, + wbrf_notifier); + + switch (action) { + case WBRF_CHANGED: + smu_wbrf_handle_exclusion_ranges(smu); + break; + default: + return NOTIFY_DONE; + }; + + return NOTIFY_OK; +} + +/** + * smu_wbrf_support_check - check wbrf support + * + * @smu: smu_context pointer + * + * Verifies the ACPI interface whether wbrf is supported. + */ +static void smu_wbrf_support_check(struct smu_context *smu) +{ + struct amdgpu_device *adev = smu->adev; + + smu->wbrf_supported = smu_is_asic_wbrf_supported(smu) && + !!amdgpu_wbrf && + wbrf_supported_consumer(adev->dev); + + if (smu->wbrf_supported) + dev_info(adev->dev, "RF interference mitigation is supported\n"); +} + +/** + * smu_wbrf_init - init driver wbrf support + * + * @smu: smu_context pointer + * + * Verifies the AMD ACPI interfaces and registers with the wbrf + * notifier chain if wbrf feature is supported. + * Returns 0 on success, error on failure. + */ +static int smu_wbrf_init(struct smu_context *smu) +{ + struct amdgpu_device *adev = smu->adev; + int ret; + + if (!smu->wbrf_supported) + return 0; + + smu->wbrf_notifier.notifier_call = smu_wbrf_event_handler; + ret = wbrf_register_notifier(&smu->wbrf_notifier); + if (ret) + return ret; + + /* + * Some wifiband exclusion ranges may be already there + * before our driver loaded. To make sure our driver + * is awared of those exclusion ranges. + */ + ret = smu_wbrf_handle_exclusion_ranges(smu); + if (ret) + dev_err(adev->dev, "Failed to handle wbrf exclusion ranges\n"); + + return ret; +} + +/** + * smu_wbrf_fini - tear down driver wbrf support + * + * @smu: smu_context pointer + * + * Unregisters with the wbrf notifier chain. + */ +static void smu_wbrf_fini(struct smu_context *smu) +{ + if (!smu->wbrf_supported) + return; + + wbrf_unregister_notifier(&smu->wbrf_notifier); +} + static int smu_smc_hw_setup(struct smu_context *smu) { struct smu_feature *feature = &smu->smu_feature; @@ -1320,6 +1487,15 @@ static int smu_smc_hw_setup(struct smu_context *smu) if (ret) return ret; + /* Enable UclkShadow on wbrf supported */ + if (smu->wbrf_supported) { + ret = smu_enable_uclk_shadow(smu, true); + if (ret) { + dev_err(adev->dev, "Failed to enable UclkShadow feature to support wbrf!\n"); + return ret; + } + } + /* * With SCPM enabled, these actions(and relevant messages) are * not needed and permitted. @@ -1416,6 +1592,15 @@ static int smu_smc_hw_setup(struct smu_context *smu) */ ret = smu_set_min_dcef_deep_sleep(smu, smu->smu_table.boot_values.dcefclk / 100); + if (ret) { + dev_err(adev->dev, "Error setting min deepsleep dcefclk\n"); + return ret; + } + + /* Init wbrf support. Properly setup the notifier */ + ret = smu_wbrf_init(smu); + if (ret) + dev_err(adev->dev, "Error during wbrf init call\n"); return ret; } @@ -1471,6 +1656,13 @@ static int smu_hw_init(void *handle) return ret; } + /* + * Check whether wbrf is supported. This needs to be done + * before SMU setup starts since part of SMU configuration + * relies on this. + */ + smu_wbrf_support_check(smu); + if (smu->is_apu) { ret = smu_set_gfx_imu_enable(smu); if (ret) @@ -1623,6 +1815,8 @@ static int smu_smc_hw_cleanup(struct smu_context *smu) struct amdgpu_device *adev = smu->adev; int ret = 0; + smu_wbrf_fini(smu); + cancel_work_sync(&smu->throttling_logging_work); cancel_work_sync(&smu->interrupt_work); diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h index 6e2069dcb6b9..244297979f92 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h @@ -22,6 +22,8 @@ #ifndef __AMDGPU_SMU_H__ #define __AMDGPU_SMU_H__ +#include + #include "amdgpu.h" #include "kgd_pp_interface.h" #include "dm_pp_interface.h" @@ -575,6 +577,10 @@ struct smu_context u32 debug_resp_reg; struct delayed_work swctf_delayed_work; + + /* data structures for wbrf feature support */ + bool wbrf_supported; + struct notifier_block wbrf_notifier; }; struct i2c_adapter; @@ -1356,6 +1362,23 @@ struct pptable_funcs { * @init_pptable_microcode: Prepare the pptable microcode to upload via PSP */ int (*init_pptable_microcode)(struct smu_context *smu); + + /** + * @is_asic_wbrf_supported: check whether PMFW supports the wbrf feature + */ + bool (*is_asic_wbrf_supported)(struct smu_context *smu); + + /** + * @enable_uclk_shadow: Enable the uclk shadow feature on wbrf supported + */ + int (*enable_uclk_shadow)(struct smu_context *smu, + bool enablement); + + /** + * @set_wbrf_exclusion_ranges: notify SMU the wifi bands occupied + */ + int (*set_wbrf_exclusion_ranges)(struct smu_context *smu, + struct exclusion_range *exclusion_ranges); }; typedef enum { diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h b/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h index ceb13c838067..67d7495ab49e 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h +++ b/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h @@ -97,6 +97,9 @@ #define smu_get_default_config_table_settings(smu, config_table) smu_ppt_funcs(get_default_config_table_settings, -EOPNOTSUPP, smu, config_table) #define smu_set_config_table(smu, config_table) smu_ppt_funcs(set_config_table, -EOPNOTSUPP, smu, config_table) #define smu_init_pptable_microcode(smu) smu_ppt_funcs(init_pptable_microcode, 0, smu) +#define smu_is_asic_wbrf_supported(smu) smu_ppt_funcs(is_asic_wbrf_supported, false, smu) +#define smu_enable_uclk_shadow(smu, enablement) smu_ppt_funcs(enable_uclk_shadow, 0, smu, enablement) +#define smu_set_wbrf_exclusion_ranges(smu, exclusion_ranges) smu_ppt_funcs(set_wbrf_exclusion_ranges, -EOPNOTSUPP, smu, exclusion_ranges) #endif #endif From patchwork Thu Aug 10 07:38:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133740 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp258886vqi; Thu, 10 Aug 2023 01:04:25 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGTs3ZgsUEXzV6H4oGmyrx+/9iHUgeqxPVrCZob+3JjJ03Wm7tUO2T+CTiKBAGTpNFL8Nwn X-Received: by 2002:a17:906:59:b0:98e:1156:1a35 with SMTP id 25-20020a170906005900b0098e11561a35mr1356153ejg.74.1691654665454; Thu, 10 Aug 2023 01:04:25 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1691654665; cv=pass; d=google.com; s=arc-20160816; b=YsynFyhQ4752DOA91iLGbUEhXGHyAClGI3HfF5D/ZJmaJw2lATLB9pNfAC3owrXAOP EWqs3S1bZQgjQnImi/vZ9zmMyPC4k0btwoda1gOYH37uZEwQhFdH6YdVVLUG5vtbTlb4 e3STotyO5sJLEEXjCODTkOZUAzMdNfPWVOOE2mL1T9WhCumfTj5JW7IopUulcJW05VBV XvIel5ISWtiI//2bMxZeuKiXTc3qdBJMASNudxMFfXfIIOWSIhTu3vXs7OX5CJj9yNMq IfH8uB2efVFTNFdONossuld3A7k+mGDUPP1G2u8zFby2wEij8GXdbizYjEh1rkN3wWGO /lOw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=XSR6QCoMxbBXa8p/1+youpYsXRQcxwhwWUT8fxMX9yU=; fh=WpfgbTJceSODJ2RxjBwoHNUpZn2apRLDTiiS5YGrd/M=; b=GzSRgy1eaacKDIXY7EdoBJZ+9zSloJqkderj6x3THIDzFfFS5vkuDhbKap7uQFLkcG gdq1OhGa0yBMz7tZpBepizlI6bczIVpLllutyI+P2DFRR/o0ndlqGkKFxZMiO3jROgV5 U/SdlrhzpQEV0x6wI2cJaLyPeVBH+/IcAXIsYbRlJb83NpivxUM2BauCf+pjZGRJ4zbL Lw6j+/d8eYdLdk6Hrz5JzVe20bkXwaMrwnxzKckTr/O2VZaYnNB8ZFXJKBOQIOZhh0Af RxhcIZBKkcOdz65Oyk+1RHxpi44XYzK2jWF1HmpBfKegQjxwGyL8XlSRQR/Z2ZtGmJAP pokA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=xu8akgUy; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. 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Thu, 10 Aug 2023 02:41:17 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 7/9] drm/amd/pm: add flood detection for wbrf events Date: Thu, 10 Aug 2023 15:38:01 +0800 Message-ID: <20230810073803.1643451-8-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D3:EE_|MW3PR12MB4444:EE_ X-MS-Office365-Filtering-Correlation-Id: c79b746d-3434-4faa-b682-08db99753dd0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(396003)(136003)(376002)(39860400002)(346002)(186006)(82310400008)(451199021)(1800799006)(46966006)(40470700004)(36840700001)(6666004)(83380400001)(356005)(2616005)(40480700001)(81166007)(47076005)(40460700003)(2906002)(82740400003)(426003)(921005)(478600001)(41300700001)(26005)(1076003)(316002)(16526019)(336012)(36756003)(70206006)(70586007)(36860700001)(4326008)(110136005)(54906003)(44832011)(7416002)(7696005)(86362001)(8936002)(5660300002)(8676002)(36900700001)(2101003)(83996005);DIR:OUT;SFP:1101; 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Signed-off-by: Evan Quan Reviewed-by: Mario Limonciello --- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 31 +++++++++++++++---- drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h | 7 +++++ 2 files changed, 32 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 163037bd6d16..aa5e1123ac0a 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -1318,7 +1318,8 @@ static int smu_wbrf_event_handler(struct notifier_block *nb, switch (action) { case WBRF_CHANGED: - smu_wbrf_handle_exclusion_ranges(smu); + schedule_delayed_work(&smu->wbrf_delayed_work, + msecs_to_jiffies(SMU_WBRF_EVENT_HANDLING_PACE)); break; default: return NOTIFY_DONE; @@ -1327,6 +1328,21 @@ static int smu_wbrf_event_handler(struct notifier_block *nb, return NOTIFY_OK; } +/** + * smu_wbrf_delayed_work_handler - callback on delayed work timer expired + * + * @work: struct work_struct pointer + * + * Flood is over and driver will consume the latest exclusion ranges. + */ +static void smu_wbrf_delayed_work_handler(struct work_struct *work) +{ + struct smu_context *smu = + container_of(work, struct smu_context, wbrf_delayed_work.work); + + smu_wbrf_handle_exclusion_ranges(smu); +} + /** * smu_wbrf_support_check - check wbrf support * @@ -1357,12 +1373,14 @@ static void smu_wbrf_support_check(struct smu_context *smu) */ static int smu_wbrf_init(struct smu_context *smu) { - struct amdgpu_device *adev = smu->adev; int ret; if (!smu->wbrf_supported) return 0; + INIT_DELAYED_WORK(&smu->wbrf_delayed_work, + smu_wbrf_delayed_work_handler); + smu->wbrf_notifier.notifier_call = smu_wbrf_event_handler; ret = wbrf_register_notifier(&smu->wbrf_notifier); if (ret) @@ -1373,11 +1391,10 @@ static int smu_wbrf_init(struct smu_context *smu) * before our driver loaded. To make sure our driver * is awared of those exclusion ranges. */ - ret = smu_wbrf_handle_exclusion_ranges(smu); - if (ret) - dev_err(adev->dev, "Failed to handle wbrf exclusion ranges\n"); + schedule_delayed_work(&smu->wbrf_delayed_work, + msecs_to_jiffies(SMU_WBRF_EVENT_HANDLING_PACE)); - return ret; + return 0; } /** @@ -1393,6 +1410,8 @@ static void smu_wbrf_fini(struct smu_context *smu) return; wbrf_unregister_notifier(&smu->wbrf_notifier); + + cancel_delayed_work_sync(&smu->wbrf_delayed_work); } static int smu_smc_hw_setup(struct smu_context *smu) diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h index 244297979f92..4d5cb1b511e5 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h @@ -480,6 +480,12 @@ struct stb_context { #define WORKLOAD_POLICY_MAX 7 +/* + * Configure wbrf event handling pace as there can be only one + * event processed every SMU_WBRF_EVENT_HANDLING_PACE ms. + */ +#define SMU_WBRF_EVENT_HANDLING_PACE 10 + struct smu_context { struct amdgpu_device *adev; @@ -581,6 +587,7 @@ struct smu_context /* data structures for wbrf feature support */ bool wbrf_supported; struct notifier_block wbrf_notifier; + struct delayed_work wbrf_delayed_work; }; struct i2c_adapter; From patchwork Thu Aug 10 07:38:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133803 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp297058vqi; Thu, 10 Aug 2023 02:37:15 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEGt1Uqgeh3Joj55v4jyDCsQhGemwJBJ8jlhSxZFqleqHs2lY9tm90jlf1dy5qBseh6Nele X-Received: by 2002:a17:903:503:b0:1bb:a522:909a with SMTP id jn3-20020a170903050300b001bba522909amr2039387plb.37.1691660235450; Thu, 10 Aug 2023 02:37:15 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1691660235; cv=pass; d=google.com; s=arc-20160816; b=Xff04A4y9mID1SWyNq+bDipUzAL07qNo6GuBXCCNOopP7rZZaI2OsbucRGRkZenyCf /w6BwFBe7UvKbbvsiRKvoE5nC4XkS95ycWK9OwSoyynWE12vzfYdTHWsQhs2Oy5qP7sr 4Q/3/wZ0R23wvzFskfwTvi0BPgblI1nq25f1VRSywaITH3YShE4tOoe+C4CcS6jv605Z GRYjRIQc/PXmOGKtmOGQ+/cbIFdbE7mim8OZyhTswZWnQ1lPRDjzxNlXujExw1x7vwHI ux+pKt3T1iP7CPfBrETlPPYDDaZ7nWML4eMf8qsru9G8vfWNp9ma2SiAPxgdYRLaffkX /E6A== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=DHKsK4YsLasPeX8ksJhIhjxXAD5r4x8f4RHwbLwU9BI=; fh=WpfgbTJceSODJ2RxjBwoHNUpZn2apRLDTiiS5YGrd/M=; b=k6K/Ut1nTSCgiaVYPmRI96ddFF8eStpWJxOcHoaRBYsZbNH0sj3yhEWzkrG9fziIlL i4vwd3CZ0uGbKojHz1ktMxLZ0R9vr+/UjO4LmHa4C2evlFTs1CS5o5TS4u4wn5fWbTX/ AEcFf/YQhej/EpH0J5j4CJoBS/gTgZCIcKlnJ+xPpcCewx5Au0NTzv5VuhbFJD3VCIR3 Rqpa0dRnZ2k3PVOh1Gfbdyi0+SLrNhEy6J0RDdZyRNwILgyTzMNjgIlGXDqEVnFJ9z68 FG1fmrumZz4pKGI/SqyPEXgWBOLRqyf29MQ2t5q2Pb7AI3pCqJfX6zveeLWCXAoxf0/7 4oig== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=NYHv8NJw; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. 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Thu, 10 Aug 2023 02:41:42 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 8/9] drm/amd/pm: enable Wifi RFI mitigation feature support for SMU13.0.0 Date: Thu, 10 Aug 2023 15:38:02 +0800 Message-ID: <20230810073803.1643451-9-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D0:EE_|DS0PR12MB8219:EE_ X-MS-Office365-Filtering-Correlation-Id: 2171d866-ef8a-4bc0-281e-08db997542d5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(346002)(39860400002)(376002)(396003)(136003)(451199021)(1800799006)(82310400008)(186006)(46966006)(36840700001)(40470700004)(5660300002)(47076005)(70206006)(36860700001)(7416002)(70586007)(44832011)(110136005)(54906003)(4326008)(83380400001)(478600001)(86362001)(41300700001)(8676002)(8936002)(316002)(2906002)(40460700003)(81166007)(82740400003)(426003)(2616005)(921005)(356005)(7696005)(6666004)(16526019)(40480700001)(36756003)(26005)(1076003)(336012)(2101003)(36900700001)(83996005);DIR:OUT;SFP:1101; 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Signed-off-by: Evan Quan Reviewed-by: Mario Limonciello --- drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h | 3 + drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h | 3 +- drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h | 3 + .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c | 9 +++ .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 60 +++++++++++++++++++ 5 files changed, 77 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h index 4d5cb1b511e5..54e76d6e66ce 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h @@ -325,6 +325,7 @@ enum smu_table_id SMU_TABLE_PACE, SMU_TABLE_ECCINFO, SMU_TABLE_COMBO_PPTABLE, + SMU_TABLE_WIFIBAND, SMU_TABLE_COUNT, }; @@ -1501,6 +1502,8 @@ enum smu_baco_seq { __dst_size); \ }) +#define HZ_IN_MHZ 1000000U + #if !defined(SWSMU_CODE_LAYER_L2) && !defined(SWSMU_CODE_LAYER_L3) && !defined(SWSMU_CODE_LAYER_L4) int smu_get_power_limit(void *handle, uint32_t *limit, diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h index 297b70b9388f..5bbb60289a79 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h @@ -245,7 +245,8 @@ __SMU_DUMMY_MAP(AllowGpo), \ __SMU_DUMMY_MAP(Mode2Reset), \ __SMU_DUMMY_MAP(RequestI2cTransaction), \ - __SMU_DUMMY_MAP(GetMetricsTable), + __SMU_DUMMY_MAP(GetMetricsTable), \ + __SMU_DUMMY_MAP(EnableUCLKShadow), #undef __SMU_DUMMY_MAP #define __SMU_DUMMY_MAP(type) SMU_MSG_##type diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h index 355c156d871a..dd70b56aa71e 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h @@ -299,5 +299,8 @@ int smu_v13_0_update_pcie_parameters(struct smu_context *smu, uint32_t pcie_gen_cap, uint32_t pcie_width_cap); +int smu_v13_0_enable_uclk_shadow(struct smu_context *smu, + bool enablement); + #endif #endif diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c index 9b62b45ebb7f..6a5cb582aa92 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c @@ -2472,3 +2472,12 @@ int smu_v13_0_update_pcie_parameters(struct smu_context *smu, return 0; } + +int smu_v13_0_enable_uclk_shadow(struct smu_context *smu, + bool enablement) +{ + return smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_EnableUCLKShadow, + enablement, + NULL); +} diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c index 3d188616ba24..fd3ac18653ed 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c @@ -154,6 +154,7 @@ static struct cmn2asic_msg_mapping smu_v13_0_0_message_map[SMU_MSG_MAX_COUNT] = MSG_MAP(AllowGpo, PPSMC_MSG_SetGpoAllow, 0), MSG_MAP(AllowIHHostInterrupt, PPSMC_MSG_AllowIHHostInterrupt, 0), MSG_MAP(ReenableAcDcInterrupt, PPSMC_MSG_ReenableAcDcInterrupt, 0), + MSG_MAP(EnableUCLKShadow, PPSMC_MSG_EnableUCLKShadow, 0), }; static struct cmn2asic_mapping smu_v13_0_0_clk_map[SMU_CLK_COUNT] = { @@ -237,6 +238,7 @@ static struct cmn2asic_mapping smu_v13_0_0_table_map[SMU_TABLE_COUNT] = { TAB_MAP(I2C_COMMANDS), TAB_MAP(ECCINFO), TAB_MAP(OVERDRIVE), + TAB_MAP(WIFIBAND), }; static struct cmn2asic_mapping smu_v13_0_0_pwr_src_map[SMU_POWER_SOURCE_COUNT] = { @@ -481,6 +483,9 @@ static int smu_v13_0_0_tables_init(struct smu_context *smu) PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM); SMU_TABLE_INIT(tables, SMU_TABLE_ECCINFO, sizeof(EccInfoTable_t), PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM); + SMU_TABLE_INIT(tables, SMU_TABLE_WIFIBAND, + sizeof(WifiBandEntryTable_t), PAGE_SIZE, + AMDGPU_GEM_DOMAIN_VRAM); smu_table->metrics_table = kzalloc(sizeof(SmuMetricsExternal_t), GFP_KERNEL); if (!smu_table->metrics_table) @@ -2593,6 +2598,58 @@ static ssize_t smu_v13_0_0_get_ecc_info(struct smu_context *smu, return ret; } +static bool smu_v13_0_0_wbrf_support_check(struct smu_context *smu) +{ + struct amdgpu_device *adev = smu->adev; + + switch (adev->ip_versions[MP1_HWIP][0]) { + case IP_VERSION(13, 0, 0): + return smu->smc_fw_version >= 0x004e6300; + case IP_VERSION(13, 0, 10): + return smu->smc_fw_version >= 0x00503300; + default: + return false; + } +} + +static int smu_v13_0_0_set_wbrf_exclusion_ranges(struct smu_context *smu, + struct exclusion_range *exclusion_ranges) +{ + WifiBandEntryTable_t wifi_bands; + int valid_entries = 0; + int ret, i; + + memset(&wifi_bands, 0, sizeof(wifi_bands)); + for (i = 0; i < ARRAY_SIZE(wifi_bands.WifiBandEntry); i++) { + if (!exclusion_ranges[i].start && + !exclusion_ranges[i].end) + break; + + /* PMFW expects the inputs to be in Mhz unit */ + wifi_bands.WifiBandEntry[valid_entries].LowFreq = + DIV_ROUND_DOWN_ULL(exclusion_ranges[i].start, HZ_IN_MHZ); + wifi_bands.WifiBandEntry[valid_entries++].HighFreq = + DIV_ROUND_UP_ULL(exclusion_ranges[i].end, HZ_IN_MHZ); + } + wifi_bands.WifiBandEntryNum = valid_entries; + + /* + * Per confirm with PMFW team, WifiBandEntryNum = 0 + * is a valid setting. So, there should be no direct + * return on that. + */ + + ret = smu_cmn_update_table(smu, + SMU_TABLE_WIFIBAND, + 0, + (void *)(&wifi_bands), + true); + if (ret) + dev_err(smu->adev->dev, "Failed to set wifiband!"); + + return ret; +} + static const struct pptable_funcs smu_v13_0_0_ppt_funcs = { .get_allowed_feature_mask = smu_v13_0_0_get_allowed_feature_mask, .set_default_dpm_table = smu_v13_0_0_set_default_dpm_table, @@ -2672,6 +2729,9 @@ static const struct pptable_funcs smu_v13_0_0_ppt_funcs = { .send_hbm_bad_channel_flag = smu_v13_0_0_send_bad_mem_channel_flag, .gpo_control = smu_v13_0_gpo_control, .get_ecc_info = smu_v13_0_0_get_ecc_info, + .is_asic_wbrf_supported = smu_v13_0_0_wbrf_support_check, + .enable_uclk_shadow = smu_v13_0_enable_uclk_shadow, + .set_wbrf_exclusion_ranges = smu_v13_0_0_set_wbrf_exclusion_ranges, }; void smu_v13_0_0_set_ppt_funcs(struct smu_context *smu) From patchwork Thu Aug 10 07:38:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Evan Quan X-Patchwork-Id: 133774 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b824:0:b0:3f2:4152:657d with SMTP id z4csp284023vqi; Thu, 10 Aug 2023 02:06:21 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEPbTSuqSdOtiVAZwpW/08NhKhnbCUMJRRauJAeg8roue+V5foFxBHmNtBi5862BIsJ+r3o X-Received: by 2002:a17:90a:6f01:b0:26b:1424:219e with SMTP id d1-20020a17090a6f0100b0026b1424219emr227019pjk.44.1691658381027; Thu, 10 Aug 2023 02:06:21 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1691658381; cv=pass; d=google.com; s=arc-20160816; b=Al1DlRnz/l8mryIku5TKSJ41fG32Wzn5t4haw7pB4FY+Fosn/FP/x72e0OP2Whg0jt lAwNrYWNBWoQ5gOsILi4SwK1euRbsKEu3X4KuzpsY9UfBwJUHj/emuM+dcdgEeqCeewT hgn5ajdxhBwo9Opi/NIGgCz7ZSutkbhg8Uv08+H5WvemkIzvnCCWAMXfSrHb0KWZDjSX MDS7E3joZFj15XOM7M5nb64WV8cZIqIOl9rwdledwjoHHmiabw6oQOagZcCRrLaCdvGe lKp7fDOHfosqYUhTtsqkLIVLiOdouOmsG8HuwkHN+3rfEXkYrokZGYpxT1CeXwsRInsC 0v5g== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=oBMyP5sjBldwqJ3K6uKO9aVAXKYlirNWck9M6BuMFVM=; fh=WpfgbTJceSODJ2RxjBwoHNUpZn2apRLDTiiS5YGrd/M=; b=aTwdYPsq7XjaSdz9VT35eJ21i05NP0Rz+EhtSPWNdPrQAy5aOo3CdXpnbUU058WuRs 8E/M+19eUVTWLFrJ6zGAolngwyrmgvwKq5sJ6OyAyGPpqNOFFC00US6Xqei1N4n3zTxQ uCyayBmTu9ig6Kr6rfL6ofTIkqB6YTybwn/JV5CGixGK4XoRRKigx1L2+fjvvrkfSNhI As8Os5otS6vgPkovRN1Sx80/PJqsiQ1H0+C2S6sgHLa0p4YFirQvTYXkvoSS8WW0ycyV TtK4/ui0Jc2CwMseKZlVz8kIzQAz9n+B/qHT2H18ksRnifn7in1ObjdyPArTqYG35T54 FeAg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amd.com header.s=selector1 header.b=zAqJKDQ9; arc=pass (i=1 spf=pass spfdomain=amd.com dmarc=pass fromdomain=amd.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amd.com Received: from out1.vger.email (out1.vger.email. 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Thu, 10 Aug 2023 02:41:51 -0500 From: Evan Quan To: , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , Evan Quan , Mario Limonciello Subject: [PATCH V8 9/9] drm/amd/pm: enable Wifi RFI mitigation feature support for SMU13.0.7 Date: Thu, 10 Aug 2023 15:38:03 +0800 Message-ID: <20230810073803.1643451-10-evan.quan@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230810073803.1643451-1-evan.quan@amd.com> References: <20230810073803.1643451-1-evan.quan@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D3:EE_|SN7PR12MB7882:EE_ X-MS-Office365-Filtering-Correlation-Id: 2645e1bb-d213-46b1-e026-08db997547da X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(346002)(396003)(376002)(136003)(186006)(1800799006)(82310400008)(451199021)(36840700001)(40470700004)(46966006)(40460700003)(40480700001)(1076003)(70206006)(54906003)(16526019)(26005)(336012)(478600001)(6666004)(110136005)(36756003)(70586007)(83380400001)(47076005)(426003)(2616005)(36860700001)(41300700001)(316002)(44832011)(7416002)(7696005)(4326008)(2906002)(86362001)(921005)(81166007)(5660300002)(8936002)(356005)(82740400003)(8676002)(2101003)(36900700001)(83996005);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2023 07:41:59.7557 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2645e1bb-d213-46b1-e026-08db997547da X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9D3.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7882 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773832378518888255 X-GMAIL-MSGID: 1773832378518888255 Fulfill the SMU13.0.7 support for Wifi RFI mitigation feature. Signed-off-by: Evan Quan Reviewed-by: Mario Limonciello --- .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c index b1f0937ccade..d02fe284b05d 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c @@ -126,6 +126,7 @@ static struct cmn2asic_msg_mapping smu_v13_0_7_message_map[SMU_MSG_MAX_COUNT] = MSG_MAP(AllowGpo, PPSMC_MSG_SetGpoAllow, 0), MSG_MAP(GetPptLimit, PPSMC_MSG_GetPptLimit, 0), MSG_MAP(NotifyPowerSource, PPSMC_MSG_NotifyPowerSource, 0), + MSG_MAP(EnableUCLKShadow, PPSMC_MSG_EnableUCLKShadow, 0), }; static struct cmn2asic_mapping smu_v13_0_7_clk_map[SMU_CLK_COUNT] = { @@ -207,6 +208,7 @@ static struct cmn2asic_mapping smu_v13_0_7_table_map[SMU_TABLE_COUNT] = { TAB_MAP(ACTIVITY_MONITOR_COEFF), [SMU_TABLE_COMBO_PPTABLE] = {1, TABLE_COMBO_PPTABLE}, TAB_MAP(OVERDRIVE), + TAB_MAP(WIFIBAND), }; static struct cmn2asic_mapping smu_v13_0_7_pwr_src_map[SMU_POWER_SOURCE_COUNT] = { @@ -497,6 +499,9 @@ static int smu_v13_0_7_tables_init(struct smu_context *smu) AMDGPU_GEM_DOMAIN_VRAM); SMU_TABLE_INIT(tables, SMU_TABLE_COMBO_PPTABLE, MP0_MP1_DATA_REGION_SIZE_COMBOPPTABLE, PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM); + SMU_TABLE_INIT(tables, SMU_TABLE_WIFIBAND, + sizeof(WifiBandEntryTable_t), PAGE_SIZE, + AMDGPU_GEM_DOMAIN_VRAM); smu_table->metrics_table = kzalloc(sizeof(SmuMetricsExternal_t), GFP_KERNEL); if (!smu_table->metrics_table) @@ -2173,6 +2178,57 @@ static int smu_v13_0_7_set_df_cstate(struct smu_context *smu, NULL); } +static bool smu_v13_0_7_wbrf_support_check(struct smu_context *smu) +{ + return smu->smc_fw_version > 0x00524600; +} + +static int smu_v13_0_7_set_wbrf_exclusion_ranges(struct smu_context *smu, + struct exclusion_range *exclusion_ranges) +{ + WifiBandEntryTable_t wifi_bands; + int valid_entries = 0; + int ret, i; + + memset(&wifi_bands, 0, sizeof(wifi_bands)); + for (i = 0; i < ARRAY_SIZE(wifi_bands.WifiBandEntry); i++) { + if (!exclusion_ranges[i].start && + !exclusion_ranges[i].end) + break; + + /* PMFW expects the inputs to be in Mhz unit */ + wifi_bands.WifiBandEntry[valid_entries].LowFreq = + DIV_ROUND_DOWN_ULL(exclusion_ranges[i].start, HZ_IN_MHZ); + wifi_bands.WifiBandEntry[valid_entries++].HighFreq = + DIV_ROUND_UP_ULL(exclusion_ranges[i].end, HZ_IN_MHZ); + } + wifi_bands.WifiBandEntryNum = valid_entries; + + /* + * Per confirm with PMFW team, WifiBandEntryNum = 0 is a valid setting. + * Considering the scenarios below: + * - At first the wifi device adds an exclusion range e.g. (2400,2500) to + * BIOS and our driver gets notified. We will set WifiBandEntryNum = 1 + * and pass the WifiBandEntry (2400, 2500) to PMFW. + * + * - Later the wifi device removes the wifiband list added above and + * our driver gets notified again. At this time, driver will set + * WifiBandEntryNum = 0 and pass an empty WifiBandEntry list to PMFW. + * - PMFW may still need to do some uclk shadow update(e.g. switching + * from shadow clock back to primary clock) on receiving this. + */ + + ret = smu_cmn_update_table(smu, + SMU_TABLE_WIFIBAND, + 0, + (void *)(&wifi_bands), + true); + if (ret) + dev_err(smu->adev->dev, "Failed to set wifiband!"); + + return ret; +} + static const struct pptable_funcs smu_v13_0_7_ppt_funcs = { .get_allowed_feature_mask = smu_v13_0_7_get_allowed_feature_mask, .set_default_dpm_table = smu_v13_0_7_set_default_dpm_table, @@ -2241,6 +2297,9 @@ static const struct pptable_funcs smu_v13_0_7_ppt_funcs = { .set_mp1_state = smu_v13_0_7_set_mp1_state, .set_df_cstate = smu_v13_0_7_set_df_cstate, .gpo_control = smu_v13_0_gpo_control, + .is_asic_wbrf_supported = smu_v13_0_7_wbrf_support_check, + .enable_uclk_shadow = smu_v13_0_enable_uclk_shadow, + .set_wbrf_exclusion_ranges = smu_v13_0_7_set_wbrf_exclusion_ranges, }; void smu_v13_0_7_set_ppt_funcs(struct smu_context *smu)