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Commit bb74174b authored by ankusa's avatar ankusa Committed by Nitesh Kataria
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msm: pcie: add parallelization support for pcie msm probe 



Few systems need less kernel boot time. Add support for
msm_pcie_probe to run as thread that can parallelize the
system bootup and helps in reducing boot time.

Change-Id: I51d96dea89e29559d9d06ad1cade6f12476baafb
Signed-off-by: default avatarankusa <ankusa@codeaurora.org>
parent 1e8f2043

drivers/pci/host/pci-msm.c

+22 −1
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ 
#include <linux/compiler.h>

#include <linux/ipc_logging.h>

#include <linux/msm_pcie.h>

#include <linux/kthread.h>



#define PCIE_VENDOR_ID_QCOM		0x17cb
@@ -5661,12 +5662,14 @@ static void msm_pcie_check_l1ss_support_all(struct msm_pcie_dev_t *dev) 
	pci_walk_bus(dev->dev->bus, msm_pcie_check_l1ss_support, dev);

}



static int msm_pcie_probe(struct platform_device *pdev)

static int __msm_pcie_probe(void *arg)

{

	int ret = 0;

	int rc_idx = -1;

	int i, j;

	struct platform_device *pdev;



	pdev = (struct platform_device *)arg;

	PCIE_GEN_DBG("%s\n", __func__);



	mutex_lock(&pcie_drv.drv_lock);
@@ -6145,6 +6148,24 @@ static int msm_pcie_probe(struct platform_device *pdev) 
	return ret;

}



static int msm_pcie_probe(struct platform_device *pdev)

{

#ifdef CONFIG_PLATFORM_AUTO

	struct task_struct *msm_pcie_task =

			kthread_run(__msm_pcie_probe, pdev,

					"msm_pcie_probe");

	if (IS_ERR(msm_pcie_task))

		return PTR_ERR(msm_pcie_task);

	else

		return 0;

#else

	int ret = 0;



	ret = __msm_pcie_probe(pdev);

	return ret;

#endif

}



static int msm_pcie_remove(struct platform_device *pdev)

{

	int ret = 0;