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habanalabs: Use mask instead of shift in sync stream registers 

Use proper bitfield masks instead of shifting values when configuring
packets sent to device.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Ofir Bitton 2020-06-01 10:38:46 +03:00 committed by Oded Gabbay
parent 21e7a34634
commit 6c07bab34b
2 changed files with 38 additions and 36 deletions
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70
drivers/misc/habanalabs/gaudi/gaudi.c
View File

@ -21,6 +21,7 @@
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/iommu.h>
#include <linux/seq_file.h>
#include <linux/bitfield.h>
/*
* Gaudi security scheme:
@ -6322,16 +6323,17 @@ static void gaudi_gen_signal_cb(struct hl_device *hdev, void *data, u16 sob_id)
pkt = (struct packet_msg_short *) (uintptr_t) cb->kernel_address;
memset(pkt, 0, sizeof(*pkt));
value = 1 << GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_SHIFT; /* inc by 1 */
value |= 1 << GAUDI_PKT_SHORT_VAL_SOB_MOD_SHIFT; /* add mode */
/* Inc by 1, Mode ADD */
value = FIELD_PREP(GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_MASK, 1);
value |= FIELD_PREP(GAUDI_PKT_SHORT_VAL_SOB_MOD_MASK, 1);
ctl = (sob_id * 4) << GAUDI_PKT_SHORT_CTL_ADDR_SHIFT; /* SOB id */
ctl |= 0 << GAUDI_PKT_SHORT_CTL_OP_SHIFT; /* write the value */
ctl |= 3 << GAUDI_PKT_SHORT_CTL_BASE_SHIFT; /* W_S SOB base */
ctl |= PACKET_MSG_SHORT << GAUDI_PKT_SHORT_CTL_OPCODE_SHIFT;
ctl |= 1 << GAUDI_PKT_SHORT_CTL_EB_SHIFT;
ctl |= 1 << GAUDI_PKT_SHORT_CTL_RB_SHIFT;
ctl |= 1 << GAUDI_PKT_SHORT_CTL_MB_SHIFT;
ctl = FIELD_PREP(GAUDI_PKT_SHORT_CTL_ADDR_MASK, sob_id * 4);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_OP_MASK, 0); /* write the value */
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_BASE_MASK, 3); /* W_S SOB base */
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_OPCODE_MASK, PACKET_MSG_SHORT);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_EB_MASK, 1);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_RB_MASK, 1);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_MB_MASK, 1);
pkt->value = cpu_to_le32(value);
pkt->ctl = cpu_to_le32(ctl);
@ -6344,12 +6346,12 @@ static u32 gaudi_add_mon_msg_short(struct packet_msg_short *pkt, u32 value,
memset(pkt, 0, pkt_size);
ctl = addr << GAUDI_PKT_SHORT_CTL_ADDR_SHIFT;
ctl |= 2 << GAUDI_PKT_SHORT_CTL_BASE_SHIFT; /* W_S MON base */
ctl |= PACKET_MSG_SHORT << GAUDI_PKT_SHORT_CTL_OPCODE_SHIFT;
ctl |= 0 << GAUDI_PKT_SHORT_CTL_EB_SHIFT;
ctl |= 1 << GAUDI_PKT_SHORT_CTL_RB_SHIFT;
ctl |= 0 << GAUDI_PKT_SHORT_CTL_MB_SHIFT; /* only last pkt needs MB */
ctl = FIELD_PREP(GAUDI_PKT_SHORT_CTL_ADDR_MASK, addr);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_BASE_MASK, 2); /* W_S MON base */
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_OPCODE_MASK, PACKET_MSG_SHORT);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_EB_MASK, 0);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_RB_MASK, 1);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_MB_MASK, 0); /* last pkt MB */
pkt->value = cpu_to_le32(value);
pkt->ctl = cpu_to_le32(ctl);
@ -6365,18 +6367,19 @@ static u32 gaudi_add_arm_monitor_pkt(struct packet_msg_short *pkt, u16 sob_id,
memset(pkt, 0, pkt_size);
value = (sob_id / 8) << GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_SHIFT;
value |= sob_val << GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_SHIFT;
value |= 0 << GAUDI_PKT_SHORT_VAL_MON_MODE_SHIFT; /* GREATER_OR_EQUAL */
value |= mask << GAUDI_PKT_SHORT_VAL_MON_MASK_SHIFT;
value = FIELD_PREP(GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_MASK, sob_id / 8);
value |= FIELD_PREP(GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_MASK, sob_val);
value |= FIELD_PREP(GAUDI_PKT_SHORT_VAL_MON_MODE_MASK,
0); /* GREATER OR EQUAL*/
value |= FIELD_PREP(GAUDI_PKT_SHORT_VAL_MON_MASK_MASK, mask);
ctl = addr << GAUDI_PKT_SHORT_CTL_ADDR_SHIFT;
ctl |= 0 << GAUDI_PKT_SHORT_CTL_OP_SHIFT; /* write the value */
ctl |= 2 << GAUDI_PKT_SHORT_CTL_BASE_SHIFT; /* W_S MON base */
ctl |= PACKET_MSG_SHORT << GAUDI_PKT_SHORT_CTL_OPCODE_SHIFT;
ctl |= 0 << GAUDI_PKT_SHORT_CTL_EB_SHIFT;
ctl |= 1 << GAUDI_PKT_SHORT_CTL_RB_SHIFT;
ctl |= 1 << GAUDI_PKT_SHORT_CTL_MB_SHIFT;
ctl = FIELD_PREP(GAUDI_PKT_SHORT_CTL_ADDR_MASK, addr);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_OP_MASK, 0); /* write the value */
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_BASE_MASK, 2); /* W_S MON base */
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_OPCODE_MASK, PACKET_MSG_SHORT);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_EB_MASK, 0);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_RB_MASK, 1);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_MB_MASK, 1);
pkt->value = cpu_to_le32(value);
pkt->ctl = cpu_to_le32(ctl);
@ -6390,15 +6393,14 @@ static u32 gaudi_add_fence_pkt(struct packet_fence *pkt)
memset(pkt, 0, pkt_size);
cfg = 1 << GAUDI_PKT_FENCE_CFG_DEC_VAL_SHIFT;
cfg |= 1 << GAUDI_PKT_FENCE_CFG_TARGET_VAL_SHIFT;
cfg |= 2 << GAUDI_PKT_FENCE_CFG_ID_SHIFT;
cfg = FIELD_PREP(GAUDI_PKT_FENCE_CFG_DEC_VAL_MASK, 1);
cfg |= FIELD_PREP(GAUDI_PKT_FENCE_CFG_TARGET_VAL_MASK, 1);
cfg |= FIELD_PREP(GAUDI_PKT_FENCE_CFG_ID_MASK, 2);
ctl = 0 << GAUDI_PKT_FENCE_CTL_PRED_SHIFT;
ctl |= PACKET_FENCE << GAUDI_PKT_FENCE_CTL_OPCODE_SHIFT;
ctl |= 0 << GAUDI_PKT_FENCE_CTL_EB_SHIFT;
ctl |= 1 << GAUDI_PKT_FENCE_CTL_RB_SHIFT;
ctl |= 1 << GAUDI_PKT_FENCE_CTL_MB_SHIFT;
ctl = FIELD_PREP(GAUDI_PKT_FENCE_CTL_OPCODE_MASK, PACKET_FENCE);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_EB_MASK, 0);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_RB_MASK, 1);
ctl |= FIELD_PREP(GAUDI_PKT_SHORT_CTL_MB_MASK, 1);
pkt->cfg = cpu_to_le32(cfg);
pkt->ctl = cpu_to_le32(ctl);

4
drivers/misc/habanalabs/include/gaudi/gaudi_packets.h
View File

@ -85,7 +85,7 @@ struct packet_msg_long {
};
#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_SHIFT 0
#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_MASK 0x0000EFFF
#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_MASK 0x00007FFF
#define GAUDI_PKT_SHORT_VAL_SOB_MOD_SHIFT 31
#define GAUDI_PKT_SHORT_VAL_SOB_MOD_MASK 0x80000000
@ -141,7 +141,7 @@ struct packet_msg_prot {
#define GAUDI_PKT_FENCE_CFG_TARGET_VAL_MASK 0x00FF0000
#define GAUDI_PKT_FENCE_CFG_ID_SHIFT 30
#define GAUDI_PKT_FENCE_CFG_ID_MASK 0xC000000
#define GAUDI_PKT_FENCE_CFG_ID_MASK 0xC0000000
#define GAUDI_PKT_FENCE_CTL_PRED_SHIFT 0
#define GAUDI_PKT_FENCE_CTL_PRED_MASK 0x0000001F