* [PATCH] habanalabs: set TPC Icache to 16 cache lines
@ 2019-10-05 6:58 Oded Gabbay
2019-10-06 6:42 ` Tomer Tayar
0 siblings, 1 reply; 2+ messages in thread
From: Oded Gabbay @ 2019-10-05 6:58 UTC (permalink / raw)
To: linux-kernel, oshpigelman, ttayar; +Cc: gregkh
Reduce latency to memory during TPC kernel execution.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
---
drivers/misc/habanalabs/goya/goya.c | 3 +++
drivers/misc/habanalabs/habanalabs.h | 7 ++++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 0b40915bede2..d49f5ecd903b 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -1457,6 +1457,9 @@ static void goya_init_golden_registers(struct hl_device *hdev)
1 << TPC0_NRTR_SCRAMB_EN_VAL_SHIFT);
WREG32(mmTPC0_NRTR_NON_LIN_SCRAMB + offset,
1 << TPC0_NRTR_NON_LIN_SCRAMB_EN_SHIFT);
+
+ WREG32_FIELD(TPC0_CFG_MSS_CONFIG, offset,
+ ICACHE_FETCH_LINE_NUM, 2);
}
WREG32(mmDMA_NRTR_SCRAMB_EN, 1 << DMA_NRTR_SCRAMB_EN_VAL_SHIFT);
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index 371d1ec15697..91445371b08b 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -1062,9 +1062,10 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val);
#define REG_FIELD_SHIFT(reg, field) reg##_##field##_SHIFT
#define REG_FIELD_MASK(reg, field) reg##_##field##_MASK
-#define WREG32_FIELD(reg, field, val) \
- WREG32(mm##reg, (RREG32(mm##reg) & ~REG_FIELD_MASK(reg, field)) | \
- (val) << REG_FIELD_SHIFT(reg, field))
+#define WREG32_FIELD(reg, offset, field, val) \
+ WREG32(mm##reg + offset, (RREG32(mm##reg + offset) & \
+ ~REG_FIELD_MASK(reg, field)) | \
+ (val) << REG_FIELD_SHIFT(reg, field))
/* Timeout should be longer when working with simulator but cap the
* increased timeout to some maximum
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* RE: [PATCH] habanalabs: set TPC Icache to 16 cache lines
2019-10-05 6:58 [PATCH] habanalabs: set TPC Icache to 16 cache lines Oded Gabbay
@ 2019-10-06 6:42 ` Tomer Tayar
0 siblings, 0 replies; 2+ messages in thread
From: Tomer Tayar @ 2019-10-06 6:42 UTC (permalink / raw)
To: Oded Gabbay, linux-kernel@vger.kernel.org, Omer Shpigelman
Cc: gregkh@linuxfoundation.org
From: Oded Gabbay <oded.gabbay@gmail.com>
Sent: Saturday, 5 October 2019 9:58
> Reduce latency to memory during TPC kernel execution.
>
> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
^ permalink raw reply [flat|nested] 2+ messages in thread
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