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Wysocki" CC: Dave Hansen , Dan Williams , Alison Schofield , , , , Robert Richter , Len Brown Subject: [PATCH 2/3] ACPI/NUMA: Print CXL Early Discovery Table (CEDT) Date: Mon, 18 Mar 2024 22:09:02 +0100 Message-ID: <20240318210904.2188120-4-rrichter@amd.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240318210904.2188120-1-rrichter@amd.com> References: <20240318210904.2188120-1-rrichter@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000EE37:EE_|PH7PR12MB8153:EE_ X-MS-Office365-Filtering-Correlation-Id: daecfb19-a1e5-44dd-72b3-08dc478fbd92 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:(13230031)(376005)(82310400014)(1800799015)(36860700004);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Mar 2024 21:09:46.4133 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: daecfb19-a1e5-44dd-72b3-08dc478fbd92 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: CY4PEPF0000EE37.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB8153 The CEDT contains similar entries as the SRAT. For diagnostic reasons print the CEDT same style as the SRAT. Signed-off-by: Robert Richter --- drivers/acpi/numa/srat.c | 112 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c index e45e64993c50..50ae8557e8d1 100644 --- a/drivers/acpi/numa/srat.c +++ b/drivers/acpi/numa/srat.c @@ -300,6 +300,114 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) return -EINVAL; } +static int __init +__acpi_table_print_cedt_entry(union acpi_subtable_headers *__header, + void *arg, const unsigned long table_end) +{ + struct acpi_cedt_header *header = (struct acpi_cedt_header *)__header; + + switch (header->type) { + case ACPI_CEDT_TYPE_CHBS: + { + struct acpi_cedt_chbs *p = + (struct acpi_cedt_chbs *)header; + + if (header->length < sizeof(struct acpi_cedt_chbs)) { + pr_warn("CEDT: unsupported CHBS entry: size %d\n", + header->length); + break; + } + + pr_info("CEDT: CHBS (0x%llx length 0x%llx uid %lu) %s (%d)\n", + (unsigned long long)p->base, + (unsigned long long)p->length, + (unsigned long)p->uid, + (p->cxl_version == ACPI_CEDT_CHBS_VERSION_CXL11) ? + "cxl11" : + (p->cxl_version == ACPI_CEDT_CHBS_VERSION_CXL20) ? + "cxl20" : + "unsupported version", + p->cxl_version); + } + break; + case ACPI_CEDT_TYPE_CFMWS: + { + struct acpi_cedt_cfmws *p = + (struct acpi_cedt_cfmws *)header; + int eiw_to_ways[] = {1, 2, 4, 8, 16, 3, 6, 12}; + int targets = -1; + + if (header->length < sizeof(struct acpi_cedt_cfmws)) { + pr_warn("CEDT: unsupported CFMWS entry: size %d\n", + header->length); + break; + } + + if (p->interleave_ways < ARRAY_SIZE(eiw_to_ways)) + targets = eiw_to_ways[p->interleave_ways]; + if (header->length < struct_size( + p, interleave_targets, targets)) + targets = -1; + + pr_info("CEDT: CFMWS (0x%llx length 0x%llx) with %d target%s", + (unsigned long long)p->base_hpa, + (unsigned long long)p->window_size, + targets, targets > 1 ? "s" : ""); + for (int i = 0; i < targets; i++) + pr_cont("%s%lu", i ? ", " : " (", + (unsigned long)p->interleave_targets[i]); + pr_cont("%s%s%s%s%s%s\n", + targets > 0 ? ")" : "", + (p->restrictions & ACPI_CEDT_CFMWS_RESTRICT_TYPE2) ? + " type2" : "", + (p->restrictions & ACPI_CEDT_CFMWS_RESTRICT_TYPE3) ? + " type3" : "", + (p->restrictions & ACPI_CEDT_CFMWS_RESTRICT_VOLATILE) ? + " volatile" : "", + (p->restrictions & ACPI_CEDT_CFMWS_RESTRICT_PMEM) ? + " pmem" : "", + (p->restrictions & ACPI_CEDT_CFMWS_RESTRICT_FIXED) ? + " fixed" : ""); + } + break; + case ACPI_CEDT_TYPE_CXIMS: + { + struct acpi_cedt_cxims *p = + (struct acpi_cedt_cxims *)header; + + if (header->length < sizeof(struct acpi_cedt_cxims)) { + pr_warn("CEDT: unsupported CXIMS entry: size %d\n", + header->length); + break; + } + + pr_info("CEDT: CXIMS (hbig %u nr_xormaps %u)\n", + (unsigned int)p->hbig, + (unsigned int)p->nr_xormaps); + } + break; + default: + pr_warn("CEDT: Found unsupported entry (type = 0x%x)\n", + header->type); + break; + } + + return 0; +} + +static void __init acpi_table_print_cedt_entry(enum acpi_cedt_type id) +{ + acpi_table_parse_cedt(id, __acpi_table_print_cedt_entry, NULL); +} + +static void __init acpi_table_print_cedt(void) +{ + /* Print only implemented CEDT types */ + acpi_table_print_cedt_entry(ACPI_CEDT_TYPE_CHBS); + acpi_table_print_cedt_entry(ACPI_CEDT_TYPE_CFMWS); + acpi_table_print_cedt_entry(ACPI_CEDT_TYPE_CXIMS); +} + static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, void *arg, const unsigned long table_end) { @@ -341,6 +449,7 @@ static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, return 0; } #else +static inline void acpi_table_print_cedt(void) {} static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, void *arg, const unsigned long table_end) { @@ -526,6 +635,9 @@ int __init acpi_numa_init(void) /* SLIT: System Locality Information Table */ acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit); + /* CEDT: CXL Early Discovery Table */ + acpi_table_print_cedt(); + /* * CXL Fixed Memory Window Structures (CFMWS) must be parsed * after the SRAT. Create NUMA Nodes for CXL memory ranges that -- 2.39.2