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yaml
---
r: 176739
b: refs/heads/master
c: 57ebb03
h: refs/heads/master
i:
  176737: 2e79094
  176735: 88da300
v: v3
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Jack Steiner authored and Linus Torvalds committed Dec 16, 2009
1 parent 9f20716 commit 231e152
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Showing 3 changed files with 68 additions and 57 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 563447d7eb04c9b382f90a132be126a21a635647
refs/heads/master: 57ebb0342c12f00e7a6d15ba59bb6c3ee501c3af
119 changes: 65 additions & 54 deletions trunk/drivers/misc/sgi-gru/gru_instructions.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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"
Expand Down Expand Up @@ -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 */
Expand All @@ -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
Expand All @@ -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
Expand Down Expand Up @@ -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) |
Expand All @@ -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);
}
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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)));
}


Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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,
Expand All @@ -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)
Expand Down Expand Up @@ -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
Expand Down
4 changes: 2 additions & 2 deletions trunk/drivers/misc/sgi-gru/gruhandles.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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);
}

Expand Down

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