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Commit de5469c2 authored by Thierry Reding's avatar Thierry Reding
Browse files

gpu: host1x: Program the channel stream ID 



When processing command streams, make sure the host1x's stream ID is
programmed for the channel so that addresses are properly translated
through the SMMU.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 6841482b

drivers/gpu/host1x/hw/channel_hw.c

+13 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
 */



#include <linux/host1x.h>

#include <linux/iommu.h>

#include <linux/slab.h>



#include <trace/events/host1x.h>
@@ -89,6 +90,16 @@ static inline void synchronize_syncpt_base(struct host1x_job *job) 
			 HOST1X_UCLASS_LOAD_SYNCPT_BASE_VALUE_F(value));

}



static void host1x_channel_set_streamid(struct host1x_channel *channel)

{

#if HOST1X_HW >= 6

	struct iommu_fwspec *spec = dev_iommu_fwspec_get(channel->dev->parent);

	u32 sid = spec ? spec->ids[0] & 0xffff : 0x7f;



	host1x_ch_writel(channel, sid, HOST1X_CHANNEL_SMMU_STREAMID);

#endif

}



static int channel_submit(struct host1x_job *job)

{

	struct host1x_channel *ch = job->channel;
@@ -120,6 +131,8 @@ static int channel_submit(struct host1x_job *job) 
		goto error;

	}



	host1x_channel_set_streamid(ch);



	/* begin a CDMA submit */

	err = host1x_cdma_begin(&ch->cdma, job);

	if (err) {

drivers/gpu/host1x/hw/host1x06_hardware.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/types.h>

#include <linux/bitops.h>



#include "hw_host1x06_channel.h"

#include "hw_host1x06_uclass.h"

#include "hw_host1x06_vm.h"

#include "hw_host1x06_hypervisor.h"

drivers/gpu/host1x/hw/host1x07_hardware.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/types.h>

#include <linux/bitops.h>



#include "hw_host1x07_channel.h"

#include "hw_host1x07_uclass.h"

#include "hw_host1x07_vm.h"

#include "hw_host1x07_hypervisor.h"

drivers/gpu/host1x/hw/hw_host1x06_channel.h

0 → 100644
+11 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (C) 2019 NVIDIA Corporation.

 */



#ifndef HOST1X_HW_HOST1X06_CHANNEL_H

#define HOST1X_HW_HOST1X06_CHANNEL_H



#define HOST1X_CHANNEL_SMMU_STREAMID 0x084



#endif

drivers/gpu/host1x/hw/hw_host1x07_channel.h

0 → 100644
+11 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (C) 2019 NVIDIA Corporation.

 */



#ifndef HOST1X_HW_HOST1X07_CHANNEL_H

#define HOST1X_HW_HOST1X07_CHANNEL_H



#define HOST1X_CHANNEL_SMMU_STREAMID 0x084



#endif