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Commit 29fa6d3d authored by Elson Roy Serrao's avatar Elson Roy Serrao
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usb: dwc3: Add support to enable best fit algorithm 



This change adds the needed support to enable best fit algorithm
for iova allocation. Best fit algorithm helps in reducing fragmentation
and thus utilizing the iova address space more efficiently.

Change-Id: Icaa9bf1db534eba75c1b5724b6210240e4e6faef
Signed-off-by: default avatarElson Roy Serrao <eserrao@codeaurora.org>
parent 4c90589e

drivers/usb/dwc3/dwc3-msm.c

+4 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ 
#include <linux/usb/dwc3-msm.h>

#include <linux/usb/role.h>

#include <linux/usb/redriver.h>

#include <linux/dma-iommu.h>

#ifdef CONFIG_QGKI_MSM_BOOT_TIME_MARKER

#include <soc/qcom/boot_stats.h>

#endif
@@ -4803,6 +4804,9 @@ static int dwc3_msm_probe(struct platform_device *pdev) 
				"qcom,use-pdc-interrupts");

	dwc3_set_notifier(&dwc3_msm_notify_event);



	if (of_property_read_bool(node, "qcom,iommu-best-fit-algo"))

		iommu_dma_enable_best_fit_algo(dev);



	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) {

		dev_err(&pdev->dev, "setting DMA mask to 64 failed.\n");

		if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {