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amdkfd: init aperture once per process 

Since the user space may call open() more that once from the same process,
the aperture initialization should be moved from kfd_open()

Signed-off-by: Alexey Skidanov <Alexey.Skidanov@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
This commit is contained in:
Alexey Skidanov 2014-11-18 13:56:23 +02:00 committed by Oded Gabbay
parent f1386fbc2b
commit dd59239a98
3 changed files with 11 additions and 8 deletions
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4
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
View File

@ -121,13 +121,9 @@ static int kfd_open(struct inode *inode, struct file *filep)
if (IS_ERR(process))
return PTR_ERR(process);
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);
kfd_init_apertures(process);
return 0;
}

6
drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c
View File

@ -299,13 +299,13 @@ int kfd_init_apertures(struct kfd_process *process)
struct kfd_dev *dev;
struct kfd_process_device *pdd;
mutex_lock(&process->mutex);
/*Iterating over all devices*/
while ((dev = kfd_topology_enum_kfd_devices(id)) != NULL &&
id < NUM_OF_SUPPORTED_GPUS) {
pdd = kfd_get_process_device_data(dev, process, 1);
if (!pdd)
return -1;
/*
* For 64 bit process aperture will be statically reserved in
@ -348,8 +348,6 @@ int kfd_init_apertures(struct kfd_process *process)
id++;
}
mutex_unlock(&process->mutex);
return 0;
}

9
drivers/gpu/drm/amd/amdkfd/kfd_process.c
View File

@ -26,6 +26,8 @@
#include <linux/slab.h>
#include <linux/amd-iommu.h>
#include <linux/notifier.h>
#include <linux/compat.h>
struct mm_struct;
#include "kfd_priv.h"
@ -285,8 +287,15 @@ static struct kfd_process *create_process(const struct task_struct *thread)
if (err != 0)
goto err_process_pqm_init;
/* init process apertures*/
process->is_32bit_user_mode = is_compat_task();
if (kfd_init_apertures(process) != 0)
goto err_init_apretures;
return process;
err_init_apretures:
pqm_uninit(&process->pqm);
err_process_pqm_init:
hash_del_rcu(&process->kfd_processes);
synchronize_rcu();