From: Andrew Lewycky <andrew.lewy...@amd.com>
Signed-off-by: Andrew Lewycky <Andrew.Lewycky at amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
---
drivers/gpu/drm/radeon/amdkfd/kfd_chardev.c | 51 ++++++++++++++++++++++++++++-
1 file changed, 50 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/amdkfd/kfd_chardev.c
b/drivers/gpu/drm/radeon/amdkfd/kfd_chardev.c
index 17725f6..cc7ac28 100644
--- a/drivers/gpu/drm/radeon/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/radeon/amdkfd/kfd_chardev.c
@@ -35,6 +35,7 @@
#include <uapi/asm-generic/mman-common.h>
#include <asm/processor.h>
#include "kfd_priv.h"
+#include "kfd_device_queue_manager.h"
static long kfd_ioctl(struct file *, unsigned int, unsigned long);
static int kfd_open(struct inode *, struct file *);
@@ -310,7 +311,55 @@ static int kfd_ioctl_update_queue(struct file *filp,
struct kfd_process *p, void
static long kfd_ioctl_set_memory_policy(struct file *filep, struct kfd_process
*p, void __user *arg)
{
- return -ENODEV;
+ struct kfd_ioctl_set_memory_policy_args args;
+ struct kfd_dev *dev;
+ int err = 0;
+ struct kfd_process_device *pdd;
+ enum cache_policy default_policy, alternate_policy;
+
+ if (copy_from_user(&args, arg, sizeof(args)))
+ return -EFAULT;
+
+ if (args.default_policy != KFD_IOC_CACHE_POLICY_COHERENT
+ && args.default_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) {
+ return -EINVAL;
+ }
+
+ if (args.alternate_policy != KFD_IOC_CACHE_POLICY_COHERENT
+ && args.alternate_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) {
+ return -EINVAL;
+ }
+
+ dev = kfd_device_by_id(args.gpu_id);
+ if (dev == NULL)
+ return -EINVAL;
+
+ mutex_lock(&p->mutex);
+
+ pdd = kfd_bind_process_to_device(dev, p);
+ if (IS_ERR(pdd) < 0) {
+ err = PTR_ERR(pdd);
+ goto out;
+ }
+
+ default_policy = (args.default_policy == KFD_IOC_CACHE_POLICY_COHERENT)
+ ? cache_policy_coherent : cache_policy_noncoherent;
+
+ alternate_policy = (args.alternate_policy ==
KFD_IOC_CACHE_POLICY_COHERENT)
+ ? cache_policy_coherent : cache_policy_noncoherent;
+
+ if (!dev->dqm->set_cache_memory_policy(dev->dqm,
+ &pdd->qpd,
+ default_policy,
+ alternate_policy,
+ (void __user
*)args.alternate_aperture_base,
+ args.alternate_aperture_size))
+ err = -EINVAL;
+
+out:
+ mutex_unlock(&p->mutex);
+
+ return err;
}
static long kfd_ioctl_get_clock_counters(struct file *filep, struct
kfd_process *p, void __user *arg)
--
1.9.1
