static int kfd_open(struct inode *inode, struct file *filep)
{
struct kfd_process *process;
+ bool is_32bit_user_mode;
if (iminor(inode) != 0)
return -ENODEV;
+ is_32bit_user_mode = is_compat_task();
+
+ if (is_32bit_user_mode == true) {
+ dev_warn(kfd_device,
+ "Process %d (32-bit) failed to open /dev/kfd\n"
+ "32-bit processes are not supported by amdkfd\n",
+ current->pid);
+ return -EPERM;
+ }
+
process = kfd_create_process(current);
if (IS_ERR(process))
return PTR_ERR(process);
- process->is_32bit_user_mode = is_compat_task();
+ process->is_32bit_user_mode = is_32bit_user_mode;
dev_dbg(kfd_device, "process %d opened, compat mode (32 bit) - %d\n",
process->pasid, process->is_32bit_user_mode);
static long kfd_ioctl_get_version(struct file *filep, struct kfd_process *p,
void __user *arg)
{
- return -ENODEV;
+ struct kfd_ioctl_get_version_args args;
+ int err = 0;
+
+ args.major_version = KFD_IOCTL_MAJOR_VERSION;
+ args.minor_version = KFD_IOCTL_MINOR_VERSION;
+
+ if (copy_to_user(arg, &args, sizeof(args)))
+ err = -EFAULT;
+
+ return err;
}
static int set_queue_properties_from_user(struct queue_properties *q_properties,
}
if ((args->ring_base_address) &&
- (!access_ok(VERIFY_WRITE, args->ring_base_address, sizeof(uint64_t)))) {
+ (!access_ok(VERIFY_WRITE,
+ (const void __user *) args->ring_base_address,
+ sizeof(uint64_t)))) {
pr_err("kfd: can't access ring base address\n");
return -EFAULT;
}
return -EINVAL;
}
- if (!access_ok(VERIFY_WRITE, args->read_pointer_address, sizeof(uint32_t))) {
+ if (!access_ok(VERIFY_WRITE,
+ (const void __user *) args->read_pointer_address,
+ sizeof(uint32_t))) {
pr_err("kfd: can't access read pointer\n");
return -EFAULT;
}
- if (!access_ok(VERIFY_WRITE, args->write_pointer_address, sizeof(uint32_t))) {
+ if (!access_ok(VERIFY_WRITE,
+ (const void __user *) args->write_pointer_address,
+ sizeof(uint32_t))) {
pr_err("kfd: can't access write pointer\n");
return -EFAULT;
}
mutex_lock(&p->mutex);
pdd = kfd_bind_process_to_device(dev, p);
- if (IS_ERR(pdd) < 0) {
+ if (IS_ERR(pdd)) {
err = PTR_ERR(pdd);
goto err_bind_process;
}
}
if ((args.ring_base_address) &&
- (!access_ok(VERIFY_WRITE, args.ring_base_address, sizeof(uint64_t)))) {
+ (!access_ok(VERIFY_WRITE,
+ (const void __user *) args.ring_base_address,
+ sizeof(uint64_t)))) {
pr_err("kfd: can't access ring base address\n");
return -EFAULT;
}
mutex_lock(&p->mutex);
pdd = kfd_bind_process_to_device(dev, p);
- if (IS_ERR(pdd) < 0) {
+ if (IS_ERR(pdd)) {
err = PTR_ERR(pdd);
goto out;
}
static long kfd_ioctl_get_clock_counters(struct file *filep,
struct kfd_process *p, void __user *arg)
{
- return -ENODEV;
+ struct kfd_ioctl_get_clock_counters_args args;
+ struct kfd_dev *dev;
+ struct timespec time;
+
+ if (copy_from_user(&args, arg, sizeof(args)))
+ return -EFAULT;
+
+ dev = kfd_device_by_id(args.gpu_id);
+ if (dev == NULL)
+ return -EINVAL;
+
+ /* Reading GPU clock counter from KGD */
+ args.gpu_clock_counter = kfd2kgd->get_gpu_clock_counter(dev->kgd);
+
+ /* No access to rdtsc. Using raw monotonic time */
+ getrawmonotonic(&time);
+ args.cpu_clock_counter = (uint64_t)timespec_to_ns(&time);
+
+ get_monotonic_boottime(&time);
+ args.system_clock_counter = (uint64_t)timespec_to_ns(&time);
+
+ /* Since the counter is in nano-seconds we use 1GHz frequency */
+ args.system_clock_freq = 1000000000;
+
+ if (copy_to_user(arg, &args, sizeof(args)))
+ return -EFAULT;
+
+ return 0;
}
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)
projects / linux-2.6-block.git / blobdiff