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path: root/drivers/misc/sgi-gru/gru_instructions.h
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Diffstat (limited to 'drivers/misc/sgi-gru/gru_instructions.h')
-rw-r--r--drivers/misc/sgi-gru/gru_instructions.h144
1 files changed, 92 insertions, 52 deletions
diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h
index 3c9c06618e6a..d95587cc794c 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
@@ -256,6 +265,7 @@ struct gru_instruction {
#define CBE_CAUSE_PROTOCOL_STATE_DATA_ERROR (1 << 16)
#define CBE_CAUSE_RA_RESPONSE_DATA_ERROR (1 << 17)
#define CBE_CAUSE_HA_RESPONSE_DATA_ERROR (1 << 18)
+#define CBE_CAUSE_FORCED_ERROR (1 << 19)
/* CBE cbrexecstatus bits */
#define CBR_EXS_ABORT_OCC_BIT 0
@@ -264,13 +274,15 @@ struct gru_instruction {
#define CBR_EXS_QUEUED_BIT 3
#define CBR_EXS_TLB_INVAL_BIT 4
#define CBR_EXS_EXCEPTION_BIT 5
+#define CBR_EXS_CB_INT_PENDING_BIT 6
#define CBR_EXS_ABORT_OCC (1 << CBR_EXS_ABORT_OCC_BIT)
#define CBR_EXS_INT_OCC (1 << CBR_EXS_INT_OCC_BIT)
#define CBR_EXS_PENDING (1 << CBR_EXS_PENDING_BIT)
#define CBR_EXS_QUEUED (1 << CBR_EXS_QUEUED_BIT)
-#define CBR_TLB_INVAL (1 << CBR_EXS_TLB_INVAL_BIT)
+#define CBR_EXS_TLB_INVAL (1 << CBR_EXS_TLB_INVAL_BIT)
#define CBR_EXS_EXCEPTION (1 << CBR_EXS_EXCEPTION_BIT)
+#define CBR_EXS_CB_INT_PENDING (1 << CBR_EXS_CB_INT_PENDING_BIT)
/*
* Exceptions are retried for the following cases. If any OTHER bits are set
@@ -296,12 +308,14 @@ 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 +333,13 @@ 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);
}
@@ -340,6 +355,30 @@ static inline void gru_start_instruction(struct gru_instruction *ins, int op32)
* - nelem and stride are in elements
* - tri0/tri1 is in bytes for the beginning of the data segment.
*/
+static inline void gru_vload_phys(void *cb, unsigned long gpa,
+ unsigned int tri0, int iaa, unsigned long hints)
+{
+ struct gru_instruction *ins = (struct gru_instruction *)cb;
+
+ ins->baddr0 = (long)gpa | ((unsigned long)iaa << 62);
+ ins->nelem = 1;
+ ins->op1_stride = 1;
+ gru_start_instruction(ins, __opdword(OP_VLOAD, 0, XTYPE_DW, iaa, 0,
+ (unsigned long)tri0, CB_IMA(hints)));
+}
+
+static inline void gru_vstore_phys(void *cb, unsigned long gpa,
+ unsigned int tri0, int iaa, unsigned long hints)
+{
+ struct gru_instruction *ins = (struct gru_instruction *)cb;
+
+ ins->baddr0 = (long)gpa | ((unsigned long)iaa << 62);
+ ins->nelem = 1;
+ ins->op1_stride = 1;
+ gru_start_instruction(ins, __opdword(OP_VSTORE, 0, XTYPE_DW, iaa, 0,
+ (unsigned long)tri0, CB_IMA(hints)));
+}
+
static inline void gru_vload(void *cb, unsigned long mem_addr,
unsigned int tri0, unsigned char xtype, unsigned long nelem,
unsigned long stride, unsigned long hints)
@@ -348,10 +387,9 @@ 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,
@@ -362,10 +400,9 @@ 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,
@@ -376,10 +413,9 @@ 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,
@@ -390,10 +426,9 @@ 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,
@@ -406,8 +441,8 @@ 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,
@@ -420,8 +455,8 @@ 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,
@@ -433,15 +468,15 @@ 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)));
}
@@ -455,10 +490,9 @@ 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,
@@ -470,9 +504,8 @@ 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,
@@ -481,8 +514,8 @@ 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,
@@ -491,8 +524,8 @@ 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,
@@ -505,8 +538,8 @@ 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,
@@ -518,8 +551,8 @@ 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,
@@ -529,8 +562,8 @@ 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,
@@ -541,9 +574,8 @@ 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)
@@ -662,6 +694,14 @@ 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
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.