int drv_release(
    struct inode* inode,
    struct file* filp
    )
{
    gceSTATUS status;
    gcsHAL_PRIVATE_DATA_PTR data;
    gckGALDEVICE device;
    gctINT i;

    gcmkHEADER_ARG("inode=0x%08X filp=0x%08X", inode, filp);

    if (filp == gcvNULL)
    {
        gcmkTRACE_ZONE(
            gcvLEVEL_ERROR, gcvZONE_DRIVER,
            "%s(%d): filp is NULL\n",
            __FUNCTION__, __LINE__
            );

        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
    }

    data = filp->private_data;

    if (data == gcvNULL)
    {
        gcmkTRACE_ZONE(
            gcvLEVEL_ERROR, gcvZONE_DRIVER,
            "%s(%d): private_data is NULL\n",
            __FUNCTION__, __LINE__
            );

        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
    }

    device = data->device;

    if (device == gcvNULL)
    {
        gcmkTRACE_ZONE(
            gcvLEVEL_ERROR, gcvZONE_DRIVER,
            "%s(%d): device is NULL\n",
            __FUNCTION__, __LINE__
            );

        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
    }

    if (!device->contiguousMapped)
    {
        if (data->contiguousLogical != gcvNULL)
        {
            gcmkONERROR(gckOS_UnmapMemoryEx(
                galDevice->os,
                galDevice->contiguousPhysical,
                galDevice->contiguousSize,
                data->contiguousLogical,
                data->pidOpen
                ));

            data->contiguousLogical = gcvNULL;
        }
    }

    /* A process gets detached. */
    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
    {
        if (galDevice->kernels[i] != gcvNULL)
        {
            gcmkONERROR(gckKERNEL_AttachProcessEx(galDevice->kernels[i], gcvFALSE, data->pidOpen));
        }
    }

    kfree(data);
    filp->private_data = NULL;

    /* Success. */
    gcmkFOOTER_NO();
    return 0;

OnError:
    gcmkFOOTER();
    return -ENOTTY;
}
Esempio n. 2
0
int drv_release(
    struct inode* inode,
    struct file* filp
    )
{
    gceSTATUS status;
    gcsHAL_PRIVATE_DATA_PTR data;
    gckGALDEVICE device;
    gctINT i;
    gctUINT32 processID;


    gcmkHEADER_ARG("inode=0x%08X filp=0x%08X", inode, filp);

    if (filp == gcvNULL)
    {
        gcmkTRACE_ZONE(
            gcvLEVEL_ERROR, gcvZONE_DRIVER,
            "%s(%d): filp is NULL\n",
            __FUNCTION__, __LINE__
            );

        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
    }

    data = filp->private_data;

    if (data == gcvNULL)
    {
        gcmkTRACE_ZONE(
            gcvLEVEL_ERROR, gcvZONE_DRIVER,
            "%s(%d): private_data is NULL\n",
            __FUNCTION__, __LINE__
            );

        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
    }

    device = data->device;

    if (device == gcvNULL)
    {
        gcmkTRACE_ZONE(
            gcvLEVEL_ERROR, gcvZONE_DRIVER,
            "%s(%d): device is NULL\n",
            __FUNCTION__, __LINE__
            );

        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
    }

    if (!device->contiguousMapped)
    {
        if (data->contiguousLogical != gcvNULL)
        {
            gcmkVERIFY_OK(gckOS_GetProcessID(&processID));
            gcmkONERROR(gckOS_UnmapMemoryEx(
                galDevice->os,
                galDevice->contiguousPhysical,
                galDevice->contiguousSize,
                data->contiguousLogical,
                data->pidOpen
                ));

            for (i = 0; i < gcdCORE_COUNT; i++)
            {
                if (galDevice->kernels[i] != gcvNULL)
                {
                    gcmkVERIFY_OK(
                         gckKERNEL_RemoveProcessDB(galDevice->kernels[i],
                                                   processID, gcvDB_MAP_MEMORY,
                                                   data->contiguousLogical));
                }
            }

            data->contiguousLogical = gcvNULL;
        }
    }

    /* Clean user signals if exit unnormally. */
    gcmkVERIFY_OK(gckOS_GetProcessID(&processID));
    gcmkVERIFY_OK(gckOS_CleanProcessSignal(galDevice->os, (gctHANDLE)processID));

    /* A process gets detached. */
    for (i = 0; i < gcdCORE_COUNT; i++)
    {
        if (galDevice->kernels[i] != gcvNULL)
        {
            gcmkONERROR(gckKERNEL_AttachProcessEx(galDevice->kernels[i], gcvFALSE, data->pidOpen));
        }
    }

    kfree(data);
    filp->private_data = NULL;

    /* Success. */
    gcmkFOOTER_NO();
    return 0;

OnError:
    gcmkFOOTER();
    return -ENOTTY;
}