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0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef __ALPHA_WILDFIRE__H__
0003 #define __ALPHA_WILDFIRE__H__
0004 
0005 #include <linux/types.h>
0006 #include <asm/compiler.h>
0007 
0008 #define WILDFIRE_MAX_QBB    8   /* more than 8 requires other mods */
0009 #define WILDFIRE_PCA_PER_QBB    4
0010 #define WILDFIRE_IRQ_PER_PCA    64
0011 
0012 #define WILDFIRE_NR_IRQS \
0013   (WILDFIRE_MAX_QBB * WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
0014 
0015 extern unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
0016 extern unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
0017 #define QBB_MAP_EMPTY   0xff
0018 
0019 extern unsigned long wildfire_hard_qbb_mask;
0020 extern unsigned long wildfire_soft_qbb_mask;
0021 extern unsigned long wildfire_gp_mask;
0022 extern unsigned long wildfire_hs_mask;
0023 extern unsigned long wildfire_iop_mask;
0024 extern unsigned long wildfire_ior_mask;
0025 extern unsigned long wildfire_pca_mask;
0026 extern unsigned long wildfire_cpu_mask;
0027 extern unsigned long wildfire_mem_mask;
0028 
0029 #define WILDFIRE_QBB_EXISTS(qbbno) (wildfire_soft_qbb_mask & (1 << (qbbno)))
0030 
0031 #define WILDFIRE_MEM_EXISTS(qbbno) (wildfire_mem_mask & (0xf << ((qbbno) << 2)))
0032 
0033 #define WILDFIRE_PCA_EXISTS(qbbno, pcano) \
0034         (wildfire_pca_mask & (1 << (((qbbno) << 2) + (pcano))))
0035 
0036 typedef struct {
0037     volatile unsigned long csr __attribute__((aligned(64)));
0038 } wildfire_64;
0039 
0040 typedef struct {
0041     volatile unsigned long csr __attribute__((aligned(256)));
0042 } wildfire_256;
0043 
0044 typedef struct {
0045     volatile unsigned long csr __attribute__((aligned(2048)));
0046 } wildfire_2k;
0047 
0048 typedef struct {
0049     wildfire_64 qsd_whami;
0050     wildfire_64 qsd_rev;
0051     wildfire_64 qsd_port_present;
0052     wildfire_64 qsd_port_active;
0053     wildfire_64 qsd_fault_ena;
0054     wildfire_64 qsd_cpu_int_ena;
0055     wildfire_64 qsd_mem_config;
0056     wildfire_64 qsd_err_sum;
0057     wildfire_64 ce_sum[4];
0058     wildfire_64 dev_init[4];
0059     wildfire_64 it_int[4];
0060     wildfire_64 ip_int[4];
0061     wildfire_64 uce_sum[4];
0062     wildfire_64 se_sum__non_dev_int[4];
0063     wildfire_64 scratch[4];
0064     wildfire_64 qsd_timer;
0065     wildfire_64 qsd_diag;
0066 } wildfire_qsd;
0067 
0068 typedef struct {
0069     wildfire_256    qsd_whami;
0070     wildfire_256    __pad1;
0071     wildfire_256    ce_sum;
0072     wildfire_256    dev_init;
0073     wildfire_256    it_int;
0074     wildfire_256    ip_int;
0075     wildfire_256    uce_sum;
0076     wildfire_256    se_sum;
0077 } wildfire_fast_qsd;
0078 
0079 typedef struct {
0080     wildfire_2k qsa_qbb_id;
0081     wildfire_2k __pad1;
0082     wildfire_2k qsa_port_ena;
0083     wildfire_2k qsa_scratch;
0084     wildfire_2k qsa_config[5];
0085     wildfire_2k qsa_ref_int;
0086     wildfire_2k qsa_qbb_pop[2];
0087     wildfire_2k qsa_dtag_fc;
0088     wildfire_2k __pad2[3];
0089     wildfire_2k qsa_diag;
0090     wildfire_2k qsa_diag_lock[4];
0091     wildfire_2k __pad3[11];
0092     wildfire_2k qsa_cpu_err_sum;
0093     wildfire_2k qsa_misc_err_sum;
0094     wildfire_2k qsa_tmo_err_sum;
0095     wildfire_2k qsa_err_ena;
0096     wildfire_2k qsa_tmo_config;
0097     wildfire_2k qsa_ill_cmd_err_sum;
0098     wildfire_2k __pad4[26];
0099     wildfire_2k qsa_busy_mask;
0100     wildfire_2k qsa_arr_valid;
0101     wildfire_2k __pad5[2];
0102     wildfire_2k qsa_port_map[4];
0103     wildfire_2k qsa_arr_addr[8];
0104     wildfire_2k qsa_arr_mask[8];
0105 } wildfire_qsa;
0106 
0107 typedef struct {
0108     wildfire_64 ioa_config;
0109     wildfire_64 iod_config;
0110     wildfire_64 iop_switch_credits;
0111     wildfire_64 __pad1;
0112     wildfire_64 iop_hose_credits;
0113     wildfire_64 __pad2[11];
0114     struct {
0115         wildfire_64 __pad3;
0116         wildfire_64 init;
0117     } iop_hose[4];
0118     wildfire_64 ioa_hose_0_ctrl;
0119     wildfire_64 iod_hose_0_ctrl;
0120     wildfire_64 ioa_hose_1_ctrl;
0121     wildfire_64 iod_hose_1_ctrl;
0122     wildfire_64 ioa_hose_2_ctrl;
0123     wildfire_64 iod_hose_2_ctrl;
0124     wildfire_64 ioa_hose_3_ctrl;
0125     wildfire_64 iod_hose_3_ctrl;
0126     struct {
0127         wildfire_64 target;
0128         wildfire_64 __pad4;
0129     } iop_dev_int[4];
0130 
0131     wildfire_64 iop_err_int_target;
0132     wildfire_64 __pad5[7];
0133     wildfire_64 iop_qbb_err_sum;
0134     wildfire_64 __pad6;
0135     wildfire_64 iop_qbb_se_sum;
0136     wildfire_64 __pad7;
0137     wildfire_64 ioa_err_sum;
0138     wildfire_64 iod_err_sum;
0139     wildfire_64 __pad8[4];
0140     wildfire_64 ioa_diag_force_err;
0141     wildfire_64 iod_diag_force_err;
0142     wildfire_64 __pad9[4];
0143     wildfire_64 iop_diag_send_err_int;
0144     wildfire_64 __pad10[15];
0145     wildfire_64 ioa_scratch;
0146     wildfire_64 iod_scratch;
0147 } wildfire_iop;
0148 
0149 typedef struct {
0150     wildfire_2k gpa_qbb_map[4];
0151     wildfire_2k gpa_mem_pop_map;
0152     wildfire_2k gpa_scratch;
0153     wildfire_2k gpa_diag;
0154     wildfire_2k gpa_config_0;
0155     wildfire_2k __pad1;
0156     wildfire_2k gpa_init_id;
0157     wildfire_2k gpa_config_2;
0158     /* not complete */
0159 } wildfire_gp;
0160 
0161 typedef struct {
0162     wildfire_64 pca_what_am_i;
0163     wildfire_64 pca_err_sum;
0164     wildfire_64 pca_diag_force_err;
0165     wildfire_64 pca_diag_send_err_int;
0166     wildfire_64 pca_hose_credits;
0167     wildfire_64 pca_scratch;
0168     wildfire_64 pca_micro_addr;
0169     wildfire_64 pca_micro_data;
0170     wildfire_64 pca_pend_int;
0171     wildfire_64 pca_sent_int;
0172     wildfire_64 __pad1;
0173     wildfire_64 pca_stdio_edge_level;
0174     wildfire_64 __pad2[52];
0175     struct {
0176         wildfire_64 target;
0177         wildfire_64 enable;
0178     } pca_int[4];
0179     wildfire_64 __pad3[56];
0180     wildfire_64 pca_alt_sent_int[32];
0181 } wildfire_pca;
0182 
0183 typedef struct {
0184     wildfire_64 ne_what_am_i;
0185     /* not complete */
0186 } wildfire_ne;
0187 
0188 typedef struct {
0189     wildfire_64 fe_what_am_i;
0190     /* not complete */
0191 } wildfire_fe;
0192 
0193 typedef struct {
0194     wildfire_64 pci_io_addr_ext;
0195     wildfire_64 pci_ctrl;
0196     wildfire_64 pci_err_sum;
0197     wildfire_64 pci_err_addr;
0198     wildfire_64 pci_stall_cnt;
0199     wildfire_64 pci_iack_special;
0200     wildfire_64 __pad1[2];
0201     wildfire_64 pci_pend_int;
0202     wildfire_64 pci_sent_int;
0203     wildfire_64 __pad2[54];
0204     struct {
0205         wildfire_64 wbase;
0206         wildfire_64 wmask;
0207         wildfire_64 tbase;
0208     } pci_window[4];
0209     wildfire_64 pci_flush_tlb;
0210     wildfire_64 pci_perf_mon;
0211 } wildfire_pci;
0212 
0213 #define WILDFIRE_ENTITY_SHIFT       18
0214 
0215 #define WILDFIRE_GP_ENTITY      (0x10UL << WILDFIRE_ENTITY_SHIFT)
0216 #define WILDFIRE_IOP_ENTITY     (0x08UL << WILDFIRE_ENTITY_SHIFT)
0217 #define WILDFIRE_QSA_ENTITY     (0x04UL << WILDFIRE_ENTITY_SHIFT)
0218 #define WILDFIRE_QSD_ENTITY_SLOW    (0x05UL << WILDFIRE_ENTITY_SHIFT)
0219 #define WILDFIRE_QSD_ENTITY_FAST    (0x01UL << WILDFIRE_ENTITY_SHIFT)
0220 
0221 #define WILDFIRE_PCA_ENTITY(pca)    ((0xc|(pca))<<WILDFIRE_ENTITY_SHIFT)
0222 
0223 #define WILDFIRE_BASE       (IDENT_ADDR | (1UL << 40))
0224 
0225 #define WILDFIRE_QBB_MASK   0x0fUL  /* for now, only 4 bits/16 QBBs */
0226 
0227 #define WILDFIRE_QBB(q)     ((~((long)(q)) & WILDFIRE_QBB_MASK) << 36)
0228 #define WILDFIRE_HOSE(h)    ((long)(h) << 33)
0229 
0230 #define WILDFIRE_QBB_IO(q)  (WILDFIRE_BASE | WILDFIRE_QBB(q))
0231 #define WILDFIRE_QBB_HOSE(q,h)  (WILDFIRE_QBB_IO(q) | WILDFIRE_HOSE(h))
0232 
0233 #define WILDFIRE_MEM(q,h)   (WILDFIRE_QBB_HOSE(q,h) | 0x000000000UL)
0234 #define WILDFIRE_CONF(q,h)  (WILDFIRE_QBB_HOSE(q,h) | 0x1FE000000UL)
0235 #define WILDFIRE_IO(q,h)    (WILDFIRE_QBB_HOSE(q,h) | 0x1FF000000UL)
0236 
0237 #define WILDFIRE_qsd(q) \
0238  ((wildfire_qsd *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSD_ENTITY_SLOW|(((1UL<<13)-1)<<23)))
0239 
0240 #define WILDFIRE_fast_qsd() \
0241  ((wildfire_fast_qsd *)(WILDFIRE_QBB_IO(0)|WILDFIRE_QSD_ENTITY_FAST|(((1UL<<13)-1)<<23)))
0242 
0243 #define WILDFIRE_qsa(q) \
0244  ((wildfire_qsa *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSA_ENTITY|(((1UL<<13)-1)<<23)))
0245 
0246 #define WILDFIRE_iop(q) \
0247  ((wildfire_iop *)(WILDFIRE_QBB_IO(q)|WILDFIRE_IOP_ENTITY|(((1UL<<13)-1)<<23)))
0248 
0249 #define WILDFIRE_gp(q) \
0250  ((wildfire_gp *)(WILDFIRE_QBB_IO(q)|WILDFIRE_GP_ENTITY|(((1UL<<13)-1)<<23)))
0251 
0252 #define WILDFIRE_pca(q,pca) \
0253  ((wildfire_pca *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)))
0254 
0255 #define WILDFIRE_ne(q,pca) \
0256  ((wildfire_ne *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(1UL<<16)))
0257 
0258 #define WILDFIRE_fe(q,pca) \
0259  ((wildfire_fe *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(3UL<<15)))
0260 
0261 #define WILDFIRE_pci(q,h) \
0262  ((wildfire_pci *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(((h)&6)>>1)|((((h)&1)|2)<<16)|(((1UL<<13)-1)<<23)))
0263 
0264 #define WILDFIRE_IO_BIAS        WILDFIRE_IO(0,0)
0265 #define WILDFIRE_MEM_BIAS       WILDFIRE_MEM(0,0) /* ??? */
0266 
0267 /* The IO address space is larger than 0xffff */
0268 #define WILDFIRE_IO_SPACE   (8UL*1024*1024)
0269 
0270 #ifdef __KERNEL__
0271 
0272 #ifndef __EXTERN_INLINE
0273 #define __EXTERN_INLINE extern inline
0274 #define __IO_EXTERN_INLINE
0275 #endif
0276 
0277 /*
0278  * Memory functions.  all accesses are done through linear space.
0279  */
0280 
0281 __EXTERN_INLINE void __iomem *wildfire_ioportmap(unsigned long addr)
0282 {
0283     return (void __iomem *)(addr + WILDFIRE_IO_BIAS);
0284 }
0285 
0286 __EXTERN_INLINE void __iomem *wildfire_ioremap(unsigned long addr, 
0287                            unsigned long size)
0288 {
0289     return (void __iomem *)(addr + WILDFIRE_MEM_BIAS);
0290 }
0291 
0292 __EXTERN_INLINE int wildfire_is_ioaddr(unsigned long addr)
0293 {
0294     return addr >= WILDFIRE_BASE;
0295 }
0296 
0297 __EXTERN_INLINE int wildfire_is_mmio(const volatile void __iomem *xaddr)
0298 {
0299     unsigned long addr = (unsigned long)xaddr;
0300     return (addr & 0x100000000UL) == 0;
0301 }
0302 
0303 #undef __IO_PREFIX
0304 #define __IO_PREFIX         wildfire
0305 #define wildfire_trivial_rw_bw      1
0306 #define wildfire_trivial_rw_lq      1
0307 #define wildfire_trivial_io_bw      1
0308 #define wildfire_trivial_io_lq      1
0309 #define wildfire_trivial_iounmap    1
0310 #include <asm/io_trivial.h>
0311 
0312 #ifdef __IO_EXTERN_INLINE
0313 #undef __EXTERN_INLINE
0314 #undef __IO_EXTERN_INLINE
0315 #endif
0316 
0317 #endif /* __KERNEL__ */
0318 
0319 #endif /* __ALPHA_WILDFIRE__H__ */
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