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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c9c2877d08
The firmare in most parisc machines maintains a Page Deallocation Table (PDT) which holds a list of physical memory addresses where hardware detected memory errors (single bit and double bit errors). This patch adds the missing PDC firmware calls and the logic to read the PDT from firmware, report all current PDT entries and exclude the reported bad memory from being used by Linux. Signed-off-by: Helge Deller <deller@gmx.de>
358 lines
11 KiB
C
358 lines
11 KiB
C
#ifndef _PARISC_PDC_H
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#define _PARISC_PDC_H
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#include <uapi/asm/pdc.h>
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#if !defined(__ASSEMBLY__)
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extern int pdc_type;
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extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */
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extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT) */
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/* Values for pdc_type */
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#define PDC_TYPE_ILLEGAL -1
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#define PDC_TYPE_PAT 0 /* 64-bit PAT-PDC */
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#define PDC_TYPE_SYSTEM_MAP 1 /* 32-bit, but supports PDC_SYSTEM_MAP */
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#define PDC_TYPE_SNAKE 2 /* Doesn't support SYSTEM_MAP */
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struct pdc_chassis_info { /* for PDC_CHASSIS_INFO */
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unsigned long actcnt; /* actual number of bytes returned */
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unsigned long maxcnt; /* maximum number of bytes that could be returned */
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};
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struct pdc_coproc_cfg { /* for PDC_COPROC_CFG */
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unsigned long ccr_functional;
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unsigned long ccr_present;
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unsigned long revision;
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unsigned long model;
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};
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struct pdc_model { /* for PDC_MODEL */
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unsigned long hversion;
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unsigned long sversion;
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unsigned long hw_id;
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unsigned long boot_id;
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unsigned long sw_id;
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unsigned long sw_cap;
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unsigned long arch_rev;
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unsigned long pot_key;
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unsigned long curr_key;
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};
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struct pdc_cache_cf { /* for PDC_CACHE (I/D-caches) */
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unsigned long
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#ifdef CONFIG_64BIT
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cc_padW:32,
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#endif
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cc_alias: 4, /* alias boundaries for virtual addresses */
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cc_block: 4, /* to determine most efficient stride */
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cc_line : 3, /* maximum amount written back as a result of store (multiple of 16 bytes) */
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cc_shift: 2, /* how much to shift cc_block left */
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cc_wt : 1, /* 0 = WT-Dcache, 1 = WB-Dcache */
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cc_sh : 2, /* 0 = separate I/D-cache, else shared I/D-cache */
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cc_cst : 3, /* 0 = incoherent D-cache, 1=coherent D-cache */
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cc_pad1 : 10, /* reserved */
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cc_hv : 3; /* hversion dependent */
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};
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struct pdc_tlb_cf { /* for PDC_CACHE (I/D-TLB's) */
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unsigned long tc_pad0:12, /* reserved */
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#ifdef CONFIG_64BIT
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tc_padW:32,
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#endif
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tc_sh : 2, /* 0 = separate I/D-TLB, else shared I/D-TLB */
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tc_hv : 1, /* HV */
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tc_page : 1, /* 0 = 2K page-size-machine, 1 = 4k page size */
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tc_cst : 3, /* 0 = incoherent operations, else coherent operations */
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tc_aid : 5, /* ITLB: width of access ids of processor (encoded!) */
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tc_sr : 8; /* ITLB: width of space-registers (encoded) */
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};
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struct pdc_cache_info { /* main-PDC_CACHE-structure (caches & TLB's) */
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/* I-cache */
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unsigned long ic_size; /* size in bytes */
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struct pdc_cache_cf ic_conf; /* configuration */
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unsigned long ic_base; /* base-addr */
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unsigned long ic_stride;
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unsigned long ic_count;
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unsigned long ic_loop;
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/* D-cache */
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unsigned long dc_size; /* size in bytes */
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struct pdc_cache_cf dc_conf; /* configuration */
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unsigned long dc_base; /* base-addr */
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unsigned long dc_stride;
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unsigned long dc_count;
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unsigned long dc_loop;
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/* Instruction-TLB */
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unsigned long it_size; /* number of entries in I-TLB */
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struct pdc_tlb_cf it_conf; /* I-TLB-configuration */
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unsigned long it_sp_base;
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unsigned long it_sp_stride;
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unsigned long it_sp_count;
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unsigned long it_off_base;
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unsigned long it_off_stride;
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unsigned long it_off_count;
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unsigned long it_loop;
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/* data-TLB */
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unsigned long dt_size; /* number of entries in D-TLB */
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struct pdc_tlb_cf dt_conf; /* D-TLB-configuration */
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unsigned long dt_sp_base;
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unsigned long dt_sp_stride;
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unsigned long dt_sp_count;
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unsigned long dt_off_base;
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unsigned long dt_off_stride;
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unsigned long dt_off_count;
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unsigned long dt_loop;
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};
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#if 0
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/* If you start using the next struct, you'll have to adjust it to
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* work with 64-bit firmware I think -PB
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*/
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struct pdc_iodc { /* PDC_IODC */
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unsigned char hversion_model;
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unsigned char hversion;
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unsigned char spa;
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unsigned char type;
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unsigned int sversion_rev:4;
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unsigned int sversion_model:19;
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unsigned int sversion_opt:8;
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unsigned char rev;
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unsigned char dep;
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unsigned char features;
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unsigned char pad1;
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unsigned int checksum:16;
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unsigned int length:16;
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unsigned int pad[15];
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} __attribute__((aligned(8))) ;
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#endif
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#ifndef CONFIG_PA20
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/* no BLTBs in pa2.0 processors */
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struct pdc_btlb_info_range {
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__u8 res00;
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__u8 num_i;
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__u8 num_d;
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__u8 num_comb;
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};
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struct pdc_btlb_info { /* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */
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unsigned int min_size; /* minimum size of BTLB in pages */
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unsigned int max_size; /* maximum size of BTLB in pages */
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struct pdc_btlb_info_range fixed_range_info;
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struct pdc_btlb_info_range variable_range_info;
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};
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#endif /* !CONFIG_PA20 */
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struct pdc_mem_retinfo { /* PDC_MEM/PDC_MEM_MEMINFO (return info) */
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unsigned long pdt_size;
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unsigned long pdt_entries;
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unsigned long pdt_status;
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unsigned long first_dbe_loc;
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unsigned long good_mem;
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};
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struct pdc_mem_read_pdt { /* PDC_MEM/PDC_MEM_READ_PDT (return info) */
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unsigned long pdt_entries;
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};
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#ifdef CONFIG_64BIT
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struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
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unsigned long entries_returned;
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unsigned long entries_total;
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};
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struct pdc_memory_table { /* PDC_MEM/PDC_MEM_TABLE (arguments) */
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unsigned long paddr;
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unsigned int pages;
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unsigned int reserved;
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};
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#endif /* CONFIG_64BIT */
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struct pdc_system_map_mod_info { /* PDC_SYSTEM_MAP/FIND_MODULE */
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unsigned long mod_addr;
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unsigned long mod_pgs;
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unsigned long add_addrs;
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};
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struct pdc_system_map_addr_info { /* PDC_SYSTEM_MAP/FIND_ADDRESS */
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unsigned long mod_addr;
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unsigned long mod_pgs;
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};
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struct pdc_initiator { /* PDC_INITIATOR */
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int host_id;
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int factor;
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int width;
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int mode;
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};
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struct hardware_path {
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char flags; /* see bit definitions below */
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char bc[6]; /* Bus Converter routing info to a specific */
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/* I/O adaptor (< 0 means none, > 63 resvd) */
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char mod; /* fixed field of specified module */
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};
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/*
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* Device path specifications used by PDC.
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*/
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struct pdc_module_path {
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struct hardware_path path;
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unsigned int layers[6]; /* device-specific info (ctlr #, unit # ...) */
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};
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#ifndef CONFIG_PA20
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/* Only used on some pre-PA2.0 boxes */
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struct pdc_memory_map { /* PDC_MEMORY_MAP */
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unsigned long hpa; /* mod's register set address */
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unsigned long more_pgs; /* number of additional I/O pgs */
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};
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#endif
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struct pdc_tod {
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unsigned long tod_sec;
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unsigned long tod_usec;
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};
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/* architected results from PDC_PIM/transfer hpmc on a PA1.1 machine */
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struct pdc_hpmc_pim_11 { /* PDC_PIM */
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__u32 gr[32];
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__u32 cr[32];
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__u32 sr[8];
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__u32 iasq_back;
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__u32 iaoq_back;
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__u32 check_type;
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__u32 cpu_state;
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__u32 rsvd1;
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__u32 cache_check;
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__u32 tlb_check;
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__u32 bus_check;
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__u32 assists_check;
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__u32 rsvd2;
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__u32 assist_state;
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__u32 responder_addr;
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__u32 requestor_addr;
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__u32 path_info;
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__u64 fr[32];
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};
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/*
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* architected results from PDC_PIM/transfer hpmc on a PA2.0 machine
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*
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* Note that PDC_PIM doesn't care whether or not wide mode was enabled
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* so the results are different on PA1.1 vs. PA2.0 when in narrow mode.
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*
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* Note also that there are unarchitected results available, which
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* are hversion dependent. Do a "ser pim 0 hpmc" after rebooting, since
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* the firmware is probably the best way of printing hversion dependent
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* data.
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*/
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struct pdc_hpmc_pim_20 { /* PDC_PIM */
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__u64 gr[32];
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__u64 cr[32];
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__u64 sr[8];
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__u64 iasq_back;
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__u64 iaoq_back;
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__u32 check_type;
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__u32 cpu_state;
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__u32 cache_check;
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__u32 tlb_check;
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__u32 bus_check;
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__u32 assists_check;
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__u32 assist_state;
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__u32 path_info;
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__u64 responder_addr;
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__u64 requestor_addr;
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__u64 fr[32];
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};
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void pdc_console_init(void); /* in pdc_console.c */
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void pdc_console_restart(void);
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void setup_pdc(void); /* in inventory.c */
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/* wrapper-functions from pdc.c */
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int pdc_add_valid(unsigned long address);
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int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
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int pdc_chassis_disp(unsigned long disp);
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int pdc_chassis_warn(unsigned long *warn);
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int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
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int pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info);
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int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index,
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void *iodc_data, unsigned int iodc_data_size);
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int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
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struct pdc_module_path *mod_path, long mod_index);
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int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info,
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long mod_index, long addr_index);
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int pdc_model_info(struct pdc_model *model);
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int pdc_model_sysmodel(char *name);
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int pdc_model_cpuid(unsigned long *cpu_id);
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int pdc_model_versions(unsigned long *versions, int id);
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int pdc_model_capabilities(unsigned long *capabilities);
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int pdc_cache_info(struct pdc_cache_info *cache);
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int pdc_spaceid_bits(unsigned long *space_bits);
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#ifndef CONFIG_PA20
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int pdc_btlb_info(struct pdc_btlb_info *btlb);
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int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path);
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#endif /* !CONFIG_PA20 */
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int pdc_lan_station_id(char *lan_addr, unsigned long net_hpa);
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int pdc_stable_read(unsigned long staddr, void *memaddr, unsigned long count);
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int pdc_stable_write(unsigned long staddr, void *memaddr, unsigned long count);
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int pdc_stable_get_size(unsigned long *size);
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int pdc_stable_verify_contents(void);
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int pdc_stable_initialize(void);
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int pdc_pci_irt_size(unsigned long *num_entries, unsigned long hpa);
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int pdc_pci_irt(unsigned long num_entries, unsigned long hpa, void *tbl);
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int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *);
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int pdc_tod_read(struct pdc_tod *tod);
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int pdc_tod_set(unsigned long sec, unsigned long usec);
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void pdc_pdt_init(void); /* in pdt.c */
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int pdc_mem_pdt_info(struct pdc_mem_retinfo *rinfo);
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int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *rpdt_read,
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unsigned long *pdt_entries_ptr);
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#ifdef CONFIG_64BIT
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int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
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struct pdc_memory_table *tbl, unsigned long entries);
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#endif
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void set_firmware_width(void);
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void set_firmware_width_unlocked(void);
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int pdc_do_firm_test_reset(unsigned long ftc_bitmap);
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int pdc_do_reset(void);
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int pdc_soft_power_info(unsigned long *power_reg);
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int pdc_soft_power_button(int sw_control);
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void pdc_io_reset(void);
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void pdc_io_reset_devices(void);
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int pdc_iodc_getc(void);
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int pdc_iodc_print(const unsigned char *str, unsigned count);
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void pdc_emergency_unlock(void);
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int pdc_sti_call(unsigned long func, unsigned long flags,
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unsigned long inptr, unsigned long outputr,
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unsigned long glob_cfg);
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static inline char * os_id_to_string(u16 os_id) {
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switch(os_id) {
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case OS_ID_NONE: return "No OS";
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case OS_ID_HPUX: return "HP-UX";
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case OS_ID_MPEXL: return "MPE-iX";
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case OS_ID_OSF: return "OSF";
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case OS_ID_HPRT: return "HP-RT";
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case OS_ID_NOVEL: return "Novell Netware";
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case OS_ID_LINUX: return "Linux";
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default: return "Unknown";
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}
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}
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#endif /* !defined(__ASSEMBLY__) */
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#endif /* _PARISC_PDC_H */
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