From: Devendra K Verma <devverma@amd.com>
To: <devverma@amd.com>
Cc: <dmaengine@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<manivannan.sadhasivam@linaro.org>, <michal.simek@amd.com>,
<vkoul@kernel.org>
Subject: [RESEND PATCH v2] dmaengine: dw-edma: Add HDMA NATIVE map check
Date: Tue, 13 May 2025 12:33:14 +0530 [thread overview]
Message-ID: <20250513070314.577823-1-devverma@amd.com> (raw)
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 <devverma@amd.com>
---
Changes in v2
Addressed the review comments and added the 'Debug info' for
HDMA_NATIVE in dw_edma_pcie_probe().
---
drivers/dma/dw-edma/dw-edma-pcie.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c
index 1c6043751dc9..49f09998e5c0 100644
--- a/drivers/dma/dw-edma/dw-edma-pcie.c
+++ b/drivers/dma/dw-edma/dw-edma-pcie.c
@@ -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;
@@ -291,6 +292,8 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
pci_dbg(pdev, "Version:\teDMA Unroll (0x%x)\n", chip->mf);
else if (chip->mf == EDMA_MF_HDMA_COMPAT)
pci_dbg(pdev, "Version:\tHDMA Compatible (0x%x)\n", chip->mf);
+ else if (chip->mf == EDMA_MF_HDMA_NATIVE)
+ pci_dbg(pdev, "Version:\tHDMA Native (0x%x)\n", chip->mf);
else
pci_dbg(pdev, "Version:\tUnknown (0x%x)\n", chip->mf);
--
2.43.0
next reply other threads:[~2025-05-13 7:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-13 7:03 Devendra K Verma [this message]
2025-05-14 15:02 ` [RESEND PATCH v2] dmaengine: dw-edma: Add HDMA NATIVE map check Vinod Koul
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