From: Koby Elbaz <kel...@habana.ai>
The PDMA/EDMA is_idle routines didn't check the correct CORE register
in order to get the accurate idle state.
Moreover, it's better to make the is_idle routine more robust by adding
additional checks (IS_HALTED) before announcing that the core is idle.
Signed-off-by: Koby Elbaz <kel...@habana.ai>
Reviewed-by: Oded Gabbay <ogab...@kernel.org>
Signed-off-by: Oded Gabbay <ogab...@kernel.org>
---
drivers/accel/habanalabs/gaudi2/gaudi2.c | 44 ++++++++++++------------
1 file changed, 22 insertions(+), 22 deletions(-)
diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2.c
b/drivers/accel/habanalabs/gaudi2/gaudi2.c
index 2186f8bd547e..58e3bffb8c25 100644
--- a/drivers/accel/habanalabs/gaudi2/gaudi2.c
+++ b/drivers/accel/habanalabs/gaudi2/gaudi2.c
@@ -86,10 +86,11 @@
#define KDMA_TIMEOUT_USEC USEC_PER_SEC
-#define IS_DMA_IDLE(dma_core_idle_ind_mask) \
- (!((dma_core_idle_ind_mask) & \
- ((DCORE0_EDMA0_CORE_IDLE_IND_MASK_DESC_CNT_STS_MASK) | \
- (DCORE0_EDMA0_CORE_IDLE_IND_MASK_COMP_MASK))))
+#define IS_DMA_IDLE(dma_core_sts0) \
+ (!((dma_core_sts0) & (DCORE0_EDMA0_CORE_STS0_BUSY_MASK)))
+
+#define IS_DMA_HALTED(dma_core_sts1) \
+ ((dma_core_sts1) & (DCORE0_EDMA0_CORE_STS1_IS_HALT_MASK))
#define IS_MME_IDLE(mme_arch_sts) (((mme_arch_sts) & MME_ARCH_IDLE_MASK) ==
MME_ARCH_IDLE_MASK)
@@ -6677,18 +6678,18 @@ static int gaudi2_compute_reset_late_init(struct
hl_device *hdev)
static bool gaudi2_get_edma_idle_status(struct hl_device *hdev, u64 *mask_arr,
u8 mask_len,
struct engines_data *e)
{
- u32 qm_glbl_sts0, qm_glbl_sts1, qm_cgm_sts, dma_core_idle_ind_mask;
+ u32 qm_glbl_sts0, qm_glbl_sts1, qm_cgm_sts, dma_core_sts0,
dma_core_sts1;
struct asic_fixed_properties *prop = &hdev->asic_prop;
unsigned long *mask = (unsigned long *) mask_arr;
- const char *edma_fmt = "%-6d%-6d%-9s%#-14x%#x\n";
+ const char *edma_fmt = "%-6d%-6d%-9s%#-14x%#-15x%#x\n";
bool is_idle = true, is_eng_idle;
int engine_idx, i, j;
u64 offset;
if (e)
hl_engine_data_sprintf(e,
- "\nCORE EDMA is_idle QM_GLBL_STS0
DMA_CORE_IDLE_IND_MASK\n"
- "---- ---- ------- ------------
----------------------\n");
+ "\nCORE EDMA is_idle QM_GLBL_STS0 DMA_CORE_STS0
DMA_CORE_STS1\n"
+ "---- ---- ------- ------------ -------------
-------------\n");
for (i = 0; i < NUM_OF_DCORES; i++) {
for (j = 0 ; j < NUM_OF_EDMA_PER_DCORE ; j++) {
@@ -6701,25 +6702,23 @@ static bool gaudi2_get_edma_idle_status(struct
hl_device *hdev, u64 *mask_arr, u
i * GAUDI2_ENGINE_ID_DCORE_OFFSET + j;
offset = i * DCORE_OFFSET + j * DCORE_EDMA_OFFSET;
- dma_core_idle_ind_mask =
- RREG32(mmDCORE0_EDMA0_CORE_IDLE_IND_MASK + offset);
+ dma_core_sts0 = RREG32(mmDCORE0_EDMA0_CORE_STS0 +
offset);
+ dma_core_sts1 = RREG32(mmDCORE0_EDMA0_CORE_STS1 +
offset);
qm_glbl_sts0 = RREG32(mmDCORE0_EDMA0_QM_GLBL_STS0 +
offset);
qm_glbl_sts1 = RREG32(mmDCORE0_EDMA0_QM_GLBL_STS1 +
offset);
qm_cgm_sts = RREG32(mmDCORE0_EDMA0_QM_CGM_STS + offset);
is_eng_idle = IS_QM_IDLE(qm_glbl_sts0, qm_glbl_sts1,
qm_cgm_sts) &&
- IS_DMA_IDLE(dma_core_idle_ind_mask);
+ IS_DMA_IDLE(dma_core_sts0) &&
!IS_DMA_HALTED(dma_core_sts1);
is_idle &= is_eng_idle;
if (mask && !is_eng_idle)
set_bit(engine_idx, mask);
if (e)
- hl_engine_data_sprintf(e, edma_fmt, i, j,
- is_eng_idle ? "Y" : "N",
- qm_glbl_sts0,
- dma_core_idle_ind_mask);
+ hl_engine_data_sprintf(e, edma_fmt, i, j,
is_eng_idle ? "Y" : "N",
+ qm_glbl_sts0,
dma_core_sts0, dma_core_sts1);
}
}
@@ -6729,29 +6728,30 @@ static bool gaudi2_get_edma_idle_status(struct
hl_device *hdev, u64 *mask_arr, u
static bool gaudi2_get_pdma_idle_status(struct hl_device *hdev, u64 *mask_arr,
u8 mask_len,
struct engines_data *e)
{
- u32 qm_glbl_sts0, qm_glbl_sts1, qm_cgm_sts, dma_core_idle_ind_mask;
+ u32 qm_glbl_sts0, qm_glbl_sts1, qm_cgm_sts, dma_core_sts0,
dma_core_sts1;
unsigned long *mask = (unsigned long *) mask_arr;
- const char *pdma_fmt = "%-6d%-9s%#-14x%#x\n";
+ const char *pdma_fmt = "%-6d%-9s%#-14x%#-15x%#x\n";
bool is_idle = true, is_eng_idle;
int engine_idx, i;
u64 offset;
if (e)
hl_engine_data_sprintf(e,
- "\nPDMA is_idle QM_GLBL_STS0
DMA_CORE_IDLE_IND_MASK\n"
- "---- ------- ------------
----------------------\n");
+ "\nPDMA is_idle QM_GLBL_STS0
DMA_CORE_STS0 DMA_CORE_STS1\n"
+ "---- ------- ------------
------------- -------------\n");
for (i = 0 ; i < NUM_OF_PDMA ; i++) {
engine_idx = GAUDI2_ENGINE_ID_PDMA_0 + i;
offset = i * PDMA_OFFSET;
- dma_core_idle_ind_mask = RREG32(mmPDMA0_CORE_IDLE_IND_MASK +
offset);
+ dma_core_sts0 = RREG32(mmPDMA0_CORE_STS0 + offset);
+ dma_core_sts1 = RREG32(mmPDMA0_CORE_STS1 + offset);
qm_glbl_sts0 = RREG32(mmPDMA0_QM_GLBL_STS0 + offset);
qm_glbl_sts1 = RREG32(mmPDMA0_QM_GLBL_STS1 + offset);
qm_cgm_sts = RREG32(mmPDMA0_QM_CGM_STS + offset);
is_eng_idle = IS_QM_IDLE(qm_glbl_sts0, qm_glbl_sts1,
qm_cgm_sts) &&
- IS_DMA_IDLE(dma_core_idle_ind_mask);
+ IS_DMA_IDLE(dma_core_sts0) &&
!IS_DMA_HALTED(dma_core_sts1);
is_idle &= is_eng_idle;
if (mask && !is_eng_idle)
@@ -6759,7 +6759,7 @@ static bool gaudi2_get_pdma_idle_status(struct hl_device
*hdev, u64 *mask_arr, u
if (e)
hl_engine_data_sprintf(e, pdma_fmt, i, is_eng_idle ?
"Y" : "N",
- qm_glbl_sts0,
dma_core_idle_ind_mask);
+ qm_glbl_sts0, dma_core_sts0,
dma_core_sts1);
}
return is_idle;
--
2.39.2
