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dmaengine: dw-edma: Add HDMA NATIVE map check

PATCH RESEND Superseded Devendra K Verma 2 participants 2 messages Apr 29, 2025 – Apr 30, 2025

Subsystems (2)
dmaengine DesignWare edma core IP driver

v1 of 2 Superseded Latest is v2 →

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Devendra K Verma

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#0 lore raw

PATCH RESEND 1/1 dmaengine: dw-edma: Add HDMA NATIVE map check

The HDMA IP supports the HDMA_NATIVE map format as part of Vendor-Specific Extended Capability. Added the check for HDMA_NATIVE map format. The check for map format enables the IP specific function invocation during the DMA ops.

Signed-off-by Devendra K Verma <[email protected]>
---
 drivers/dma/dw-edma/dw-edma-pcie.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/dma/dw-edma/dw-edma-pcie.c +2 -1
index 1c6043751dc9..42b2a554f7a5 100644
@@ -136,7 +136,8 @@ static void dw_edma_pcie_get_vsec_dma_data(struct pci_dev *pdev,
 	map = FIELD_GET(DW_PCIE_VSEC_DMA_MAP, val);
 	if (map != EDMA_MF_EDMA_LEGACY &&
 	    map != EDMA_MF_EDMA_UNROLL &&
-	    map != EDMA_MF_HDMA_COMPAT)
+	    map != EDMA_MF_HDMA_COMPAT &&
+	    map != EDMA_MF_HDMA_NATIVE)
 		return;
 
 	pdata->mf = map;
Signature · 1 line
2.43.0
#1 lore raw
Quoted 5 lines · Devendra K Verma

The HDMA IP supports the HDMA_NATIVE map format as part of Vendor-Specific Extended Capability. Added the check for HDMA_NATIVE map format. The check for map format enables the IP specific function invocation during the DMA ops.

You also need to update the 'Debug info' part in dw_edma_pcie_probe().

- Mani

Quoted 22 lines
Signed-off-by Devendra K Verma <[email protected]>
---
 drivers/dma/dw-edma/dw-edma-pcie.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/dma/dw-edma/dw-edma-pcie.c +2 -1
index 1c6043751dc9..42b2a554f7a5 100644
@@ -136,7 +136,8 @@ static void dw_edma_pcie_get_vsec_dma_data(struct pci_dev *pdev,
 	map = FIELD_GET(DW_PCIE_VSEC_DMA_MAP, val);
 	if (map != EDMA_MF_EDMA_LEGACY &&
 	    map != EDMA_MF_EDMA_UNROLL &&
-	    map != EDMA_MF_HDMA_COMPAT)
+	    map != EDMA_MF_HDMA_COMPAT &&
+	    map != EDMA_MF_HDMA_NATIVE)
 		return;
 
 	pdata->mf = map;
Signature · 1 line
2.43.0
Signature · 1 line
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