diff options
Diffstat (limited to 'drivers/misc/sgi-gru')
-rw-r--r-- | drivers/misc/sgi-gru/gru_instructions.h | 119 | ||||
-rw-r--r-- | drivers/misc/sgi-gru/gruhandles.c | 4 |
2 files changed, 67 insertions, 56 deletions
diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h index 32f358d9f42..41eb19a85bb 100644 --- a/drivers/misc/sgi-gru/gru_instructions.h +++ b/drivers/misc/sgi-gru/gru_instructions.h @@ -34,17 +34,17 @@ extern void gru_wait_abort_proc(void *cb); #include <asm/intrinsics.h> #define __flush_cache(p) ia64_fc((unsigned long)p) /* Use volatile on IA64 to ensure ordering via st4.rel */ -#define gru_ordered_store_int(p, v) \ +#define gru_ordered_store_ulong(p, v) \ do { \ barrier(); \ - *((volatile int *)(p)) = v; /* force st.rel */ \ + *((volatile unsigned long *)(p)) = v; /* force st.rel */ \ } while (0) #elif defined(CONFIG_X86_64) #define __flush_cache(p) clflush(p) -#define gru_ordered_store_int(p, v) \ +#define gru_ordered_store_ulong(p, v) \ do { \ barrier(); \ - *(int *)p = v; \ + *(unsigned long *)p = v; \ } while (0) #else #error "Unsupported architecture" @@ -129,8 +129,13 @@ struct gru_instruction_bits { */ struct gru_instruction { /* DW 0 */ - unsigned int op32; /* icmd,xtype,iaa0,ima,opc */ - unsigned int tri0; + union { + unsigned long op64; /* icmd,xtype,iaa0,ima,opc,tri0 */ + struct { + unsigned int op32; + unsigned int tri0; + }; + }; unsigned long tri1_bufsize; /* DW 1 */ unsigned long baddr0; /* DW 2 */ unsigned long nelem; /* DW 3 */ @@ -140,7 +145,7 @@ struct gru_instruction { unsigned long avalue; /* DW 7 */ }; -/* Some shifts and masks for the low 32 bits of a GRU command */ +/* Some shifts and masks for the low 64 bits of a GRU command */ #define GRU_CB_ICMD_SHFT 0 #define GRU_CB_ICMD_MASK 0x1 #define GRU_CB_XTYPE_SHFT 8 @@ -155,6 +160,10 @@ struct gru_instruction { #define GRU_CB_OPC_MASK 0xff #define GRU_CB_EXOPC_SHFT 24 #define GRU_CB_EXOPC_MASK 0xff +#define GRU_IDEF2_SHFT 32 +#define GRU_IDEF2_MASK 0x3ffff +#define GRU_ISTATUS_SHFT 56 +#define GRU_ISTATUS_MASK 0x3 /* GRU instruction opcodes (opc field) */ #define OP_NOP 0x00 @@ -296,12 +305,14 @@ union gru_mesqhead { /* Generate the low word of a GRU instruction */ -static inline unsigned int -__opword(unsigned char opcode, unsigned char exopc, unsigned char xtype, +static inline unsigned long +__opdword(unsigned char opcode, unsigned char exopc, unsigned char xtype, unsigned char iaa0, unsigned char iaa1, - unsigned char ima) + unsigned long idef2, unsigned char ima) { return (1 << GRU_CB_ICMD_SHFT) | + ((unsigned long)CBS_ACTIVE << GRU_ISTATUS_SHFT) | + (idef2<< GRU_IDEF2_SHFT) | (iaa0 << GRU_CB_IAA0_SHFT) | (iaa1 << GRU_CB_IAA1_SHFT) | (ima << GRU_CB_IMA_SHFT) | @@ -319,12 +330,12 @@ static inline void gru_flush_cache(void *p) } /* - * Store the lower 32 bits of the command including the "start" bit. Then + * Store the lower 64 bits of the command including the "start" bit. Then * start the instruction executing. */ -static inline void gru_start_instruction(struct gru_instruction *ins, int op32) +static inline void gru_start_instruction(struct gru_instruction *ins, unsigned long op64) { - gru_ordered_store_int(ins, op32); + gru_ordered_store_ulong(ins, op64); mb(); gru_flush_cache(ins); } @@ -348,10 +359,9 @@ static inline void gru_vload_phys(void *cb, unsigned long gpa, ins->baddr0 = (long)gpa | ((unsigned long)iaa << 62); ins->nelem = 1; - ins->tri0 = tri0; ins->op1_stride = 1; - gru_start_instruction(ins, __opword(OP_VLOAD, 0, XTYPE_DW, iaa, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_VLOAD, 0, XTYPE_DW, iaa, 0, + (unsigned long)tri0, CB_IMA(hints))); } static inline void gru_vload(void *cb, unsigned long mem_addr, @@ -362,10 +372,9 @@ static inline void gru_vload(void *cb, unsigned long mem_addr, ins->baddr0 = (long)mem_addr; ins->nelem = nelem; - ins->tri0 = tri0; ins->op1_stride = stride; - gru_start_instruction(ins, __opword(OP_VLOAD, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_VLOAD, 0, xtype, IAA_RAM, 0, + (unsigned long)tri0, CB_IMA(hints))); } static inline void gru_vstore(void *cb, unsigned long mem_addr, @@ -376,10 +385,9 @@ static inline void gru_vstore(void *cb, unsigned long mem_addr, ins->baddr0 = (long)mem_addr; ins->nelem = nelem; - ins->tri0 = tri0; ins->op1_stride = stride; - gru_start_instruction(ins, __opword(OP_VSTORE, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_VSTORE, 0, xtype, IAA_RAM, 0, + tri0, CB_IMA(hints))); } static inline void gru_ivload(void *cb, unsigned long mem_addr, @@ -390,10 +398,9 @@ static inline void gru_ivload(void *cb, unsigned long mem_addr, ins->baddr0 = (long)mem_addr; ins->nelem = nelem; - ins->tri0 = tri0; ins->tri1_bufsize = tri1; - gru_start_instruction(ins, __opword(OP_IVLOAD, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_IVLOAD, 0, xtype, IAA_RAM, 0, + tri0, CB_IMA(hints))); } static inline void gru_ivstore(void *cb, unsigned long mem_addr, @@ -404,10 +411,9 @@ static inline void gru_ivstore(void *cb, unsigned long mem_addr, ins->baddr0 = (long)mem_addr; ins->nelem = nelem; - ins->tri0 = tri0; ins->tri1_bufsize = tri1; - gru_start_instruction(ins, __opword(OP_IVSTORE, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_IVSTORE, 0, xtype, IAA_RAM, 0, + tri0, CB_IMA(hints))); } static inline void gru_vset(void *cb, unsigned long mem_addr, @@ -420,8 +426,8 @@ static inline void gru_vset(void *cb, unsigned long mem_addr, ins->op2_value_baddr1 = value; ins->nelem = nelem; ins->op1_stride = stride; - gru_start_instruction(ins, __opword(OP_VSET, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_VSET, 0, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_ivset(void *cb, unsigned long mem_addr, @@ -434,8 +440,8 @@ static inline void gru_ivset(void *cb, unsigned long mem_addr, ins->op2_value_baddr1 = value; ins->nelem = nelem; ins->tri1_bufsize = tri1; - gru_start_instruction(ins, __opword(OP_IVSET, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_IVSET, 0, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_vflush(void *cb, unsigned long mem_addr, @@ -447,15 +453,15 @@ static inline void gru_vflush(void *cb, unsigned long mem_addr, ins->baddr0 = (long)mem_addr; ins->op1_stride = stride; ins->nelem = nelem; - gru_start_instruction(ins, __opword(OP_VFLUSH, 0, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_VFLUSH, 0, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_nop(void *cb, int hints) { struct gru_instruction *ins = (void *)cb; - gru_start_instruction(ins, __opword(OP_NOP, 0, 0, 0, 0, CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_NOP, 0, 0, 0, 0, 0, CB_IMA(hints))); } @@ -469,10 +475,9 @@ static inline void gru_bcopy(void *cb, const unsigned long src, ins->baddr0 = (long)src; ins->op2_value_baddr1 = (long)dest; ins->nelem = nelem; - ins->tri0 = tri0; ins->tri1_bufsize = bufsize; - gru_start_instruction(ins, __opword(OP_BCOPY, 0, xtype, IAA_RAM, - IAA_RAM, CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_BCOPY, 0, xtype, IAA_RAM, + IAA_RAM, tri0, CB_IMA(hints))); } static inline void gru_bstore(void *cb, const unsigned long src, @@ -484,9 +489,8 @@ static inline void gru_bstore(void *cb, const unsigned long src, ins->baddr0 = (long)src; ins->op2_value_baddr1 = (long)dest; ins->nelem = nelem; - ins->tri0 = tri0; - gru_start_instruction(ins, __opword(OP_BSTORE, 0, xtype, 0, IAA_RAM, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_BSTORE, 0, xtype, 0, IAA_RAM, + tri0, CB_IMA(hints))); } static inline void gru_gamir(void *cb, int exopc, unsigned long src, @@ -495,8 +499,8 @@ static inline void gru_gamir(void *cb, int exopc, unsigned long src, struct gru_instruction *ins = (void *)cb; ins->baddr0 = (long)src; - gru_start_instruction(ins, __opword(OP_GAMIR, exopc, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_GAMIR, exopc, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_gamirr(void *cb, int exopc, unsigned long src, @@ -505,8 +509,8 @@ static inline void gru_gamirr(void *cb, int exopc, unsigned long src, struct gru_instruction *ins = (void *)cb; ins->baddr0 = (long)src; - gru_start_instruction(ins, __opword(OP_GAMIRR, exopc, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_GAMIRR, exopc, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_gamer(void *cb, int exopc, unsigned long src, @@ -519,8 +523,8 @@ static inline void gru_gamer(void *cb, int exopc, unsigned long src, ins->baddr0 = (long)src; ins->op1_stride = operand1; ins->op2_value_baddr1 = operand2; - gru_start_instruction(ins, __opword(OP_GAMER, exopc, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_GAMER, exopc, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_gamerr(void *cb, int exopc, unsigned long src, @@ -532,8 +536,8 @@ static inline void gru_gamerr(void *cb, int exopc, unsigned long src, ins->baddr0 = (long)src; ins->op1_stride = operand1; ins->op2_value_baddr1 = operand2; - gru_start_instruction(ins, __opword(OP_GAMERR, exopc, xtype, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_GAMERR, exopc, xtype, IAA_RAM, 0, + 0, CB_IMA(hints))); } static inline void gru_gamxr(void *cb, unsigned long src, @@ -543,8 +547,8 @@ static inline void gru_gamxr(void *cb, unsigned long src, ins->baddr0 = (long)src; ins->nelem = 4; - gru_start_instruction(ins, __opword(OP_GAMXR, EOP_XR_CSWAP, XTYPE_DW, - IAA_RAM, 0, CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_GAMXR, EOP_XR_CSWAP, XTYPE_DW, + IAA_RAM, 0, 0, CB_IMA(hints))); } static inline void gru_mesq(void *cb, unsigned long queue, @@ -555,9 +559,8 @@ static inline void gru_mesq(void *cb, unsigned long queue, ins->baddr0 = (long)queue; ins->nelem = nelem; - ins->tri0 = tri0; - gru_start_instruction(ins, __opword(OP_MESQ, 0, XTYPE_CL, IAA_RAM, 0, - CB_IMA(hints))); + gru_start_instruction(ins, __opdword(OP_MESQ, 0, XTYPE_CL, IAA_RAM, 0, + tri0, CB_IMA(hints))); } static inline unsigned long gru_get_amo_value(void *cb) @@ -676,6 +679,14 @@ static inline void gru_wait_abort(void *cb) gru_wait_abort_proc(cb); } +/* + * Get a pointer to the start of a gseg + * p - Any valid pointer within the gseg + */ +static inline void *gru_get_gseg_pointer (void *p) +{ + return (void *)((unsigned long)p & ~(GRU_GSEG_PAGESIZE - 1)); +} /* * Get a pointer to a control block diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c index 4bc9ee811fb..66d67d9bc9b 100644 --- a/drivers/misc/sgi-gru/gruhandles.c +++ b/drivers/misc/sgi-gru/gruhandles.c @@ -54,8 +54,8 @@ static void start_instruction(void *h) { unsigned long *w0 = h; - wmb(); /* setting CMD bit must be last */ - *w0 = *w0 | 1; + wmb(); /* setting CMD/STATUS bits must be last */ + *w0 = *w0 | 0x20001; gru_flush_cache(h); } |