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Commit 622a5430 authored by Tharun Kumar Merugu's avatar Tharun Kumar Merugu
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adsprpc: optimize number of SGL entries during map create 



Set proper DMA segment size and boundary during mem map creation
to reduce number of SGL entries to 1.

Change-Id: I92392e62766c83ab49a4ec217e5762d5601af425
Acked-by: default avatarThyagarajan Venkatanarayanan <venkatan@qti.qualcomm.com>
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent 5f228f0a

drivers/char/adsprpc.c

+7 −0
Original line number Diff line number Diff line
@@ -3004,8 +3004,15 @@ static int fastrpc_cb_probe(struct device *dev) 
	VERIFY(err, !arm_iommu_attach_device(dev, sess->smmu.mapping));

	if (err)

		goto bail;



	sess->smmu.dev = dev;

	sess->smmu.enabled = 1;

	if (!sess->smmu.dev->dma_parms)

		sess->smmu.dev->dma_parms = devm_kzalloc(sess->smmu.dev,

			sizeof(*sess->smmu.dev->dma_parms), GFP_KERNEL);

	dma_set_max_seg_size(sess->smmu.dev, DMA_BIT_MASK(32));

	dma_set_seg_boundary(sess->smmu.dev, DMA_BIT_MASK(64));



	chan->sesscount++;

	debugfs_global_file = debugfs_create_file("global", 0644, debugfs_root,

							NULL, &debugfs_fops);