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Commit 775921ed authored by Alexey Skidanov's avatar Alexey Skidanov Committed by Oded Gabbay
Browse files

amdkfd: Implement the Get Process Aperture IOCTL 



v3: Fixed debug messages

Signed-off-by: default avatarAlexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@amd.com>
parent 4fac47c8

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

+55 −1
Original line number Diff line number Diff line
@@ -435,7 +435,61 @@ static long kfd_ioctl_get_clock_counters(struct file *filep, 
static int kfd_ioctl_get_process_apertures(struct file *filp,

				struct kfd_process *p, void __user *arg)

{

	return -ENODEV;

	struct kfd_ioctl_get_process_apertures_args args;

	struct kfd_process_device_apertures *pAperture;

	struct kfd_process_device *pdd;



	dev_dbg(kfd_device, "get apertures for PASID %d", p->pasid);



	if (copy_from_user(&args, arg, sizeof(args)))

		return -EFAULT;



	args.num_of_nodes = 0;



	mutex_lock(&p->mutex);



	/*if the process-device list isn't empty*/

	if (kfd_has_process_device_data(p)) {

		/* Run over all pdd of the process */

		pdd = kfd_get_first_process_device_data(p);

		do {

			pAperture = &args.process_apertures[args.num_of_nodes];

			pAperture->gpu_id = pdd->dev->id;

			pAperture->lds_base = pdd->lds_base;

			pAperture->lds_limit = pdd->lds_limit;

			pAperture->gpuvm_base = pdd->gpuvm_base;

			pAperture->gpuvm_limit = pdd->gpuvm_limit;

			pAperture->scratch_base = pdd->scratch_base;

			pAperture->scratch_limit = pdd->scratch_limit;



			dev_dbg(kfd_device,

				"node id %u\n", args.num_of_nodes);

			dev_dbg(kfd_device,

				"gpu id %u\n", pdd->dev->id);

			dev_dbg(kfd_device,

				"lds_base %llX\n", pdd->lds_base);

			dev_dbg(kfd_device,

				"lds_limit %llX\n", pdd->lds_limit);

			dev_dbg(kfd_device,

				"gpuvm_base %llX\n", pdd->gpuvm_base);

			dev_dbg(kfd_device,

				"gpuvm_limit %llX\n", pdd->gpuvm_limit);

			dev_dbg(kfd_device,

				"scratch_base %llX\n", pdd->scratch_base);

			dev_dbg(kfd_device,

				"scratch_limit %llX\n", pdd->scratch_limit);



			args.num_of_nodes++;

		} while ((pdd = kfd_get_next_process_device_data(p, pdd)) != NULL &&

				(args.num_of_nodes < NUM_OF_SUPPORTED_GPUS));

	}



	mutex_unlock(&p->mutex);



	if (copy_to_user(arg, &args, sizeof(args)))

		return -EFAULT;



	return 0;

}



static long kfd_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

+6 −0
Original line number Diff line number Diff line
@@ -473,6 +473,12 @@ struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 
							struct kfd_process *p,

							int create_pdd);



/* Process device data iterator */

struct kfd_process_device *kfd_get_first_process_device_data(struct kfd_process *p);

struct kfd_process_device *kfd_get_next_process_device_data(struct kfd_process *p,

						struct kfd_process_device *pdd);

bool kfd_has_process_device_data(struct kfd_process *p);



/* PASIDs */

int kfd_pasid_init(void);

void kfd_pasid_exit(void);