void
kgsl_intr_decode(gsl_device_t *device, gsl_intrblock_t block_id)
{
const gsl_intrblock_reg_t *block = &gsl_cfg_intrblock_reg[block_id];
gsl_intrid_t id;
unsigned int status;
// read the block's interrupt status bits
kgsl_device_regread(device->id, block->status_reg, &status);
// mask off any interrupts which are disabled
status &= device->intr.enabled[block->id];
// acknowledge the block's interrupts
kgsl_device_regwrite(device->id, block->clear_reg, status);
// loop through the block's masks, determine which interrupt bits are active, and call callback (or TODO queue DPC)
for (id = block->first_id; id <= block->last_id; id++)
{
if (status & gsl_cfg_intr_mask[id])
{
device->intr.handler[id].callback(id, device->intr.handler[id].cookie);
}
}
}
static long gsl_kmod_ioctl(struct file *fd, unsigned int cmd, unsigned long arg)
{
int kgslStatus = GSL_FAILURE;
switch (cmd) {
case IOCTL_KGSL_DEVICE_START:
{
kgsl_device_start_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_start_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_start(param.device_id, param.flags);
break;
}
case IOCTL_KGSL_DEVICE_STOP:
{
kgsl_device_stop_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_stop_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_stop(param.device_id);
break;
}
case IOCTL_KGSL_DEVICE_IDLE:
{
kgsl_device_idle_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_idle_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_idle(param.device_id, param.timeout);
break;
}
case IOCTL_KGSL_DEVICE_ISIDLE:
{
kgsl_device_isidle_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_isidle_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_isidle(param.device_id);
break;
}
case IOCTL_KGSL_DEVICE_GETPROPERTY:
{
kgsl_device_getproperty_t param;
void *tmp;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_getproperty_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
tmp = kmalloc(param.sizebytes, GFP_KERNEL);
if (!tmp)
{
printk(KERN_ERR "%s:kmalloc error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_getproperty(param.device_id, param.type, tmp, param.sizebytes);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.value, tmp, param.sizebytes))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
kfree(tmp);
break;
}
}
else
{
printk(KERN_ERR "%s: kgsl_device_getproperty error\n", __func__);
}
kfree(tmp);
break;
}
case IOCTL_KGSL_DEVICE_SETPROPERTY:
{
kgsl_device_setproperty_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_setproperty_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_setproperty(param.device_id, param.type, param.value, param.sizebytes);
if (kgslStatus != GSL_SUCCESS)
{
printk(KERN_ERR "%s: kgsl_device_setproperty error\n", __func__);
}
break;
}
case IOCTL_KGSL_DEVICE_REGREAD:
{
kgsl_device_regread_t param;
unsigned int tmp;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_regread_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_regread(param.device_id, param.offsetwords, &tmp);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.value, &tmp, sizeof(unsigned int)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
}
break;
}
case IOCTL_KGSL_DEVICE_REGWRITE:
{
kgsl_device_regwrite_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_regwrite_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_regwrite(param.device_id, param.offsetwords, param.value);
break;
}
case IOCTL_KGSL_DEVICE_WAITIRQ:
{
kgsl_device_waitirq_t param;
unsigned int count;
printk(KERN_ERR "IOCTL_KGSL_DEVICE_WAITIRQ obsoleted!\n");
// kgslStatus = -ENOTTY; break;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_waitirq_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_waitirq(param.device_id, param.intr_id, &count, param.timeout);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.count, &count, sizeof(unsigned int)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
}
break;
}
case IOCTL_KGSL_CMDSTREAM_ISSUEIBCMDS:
{
kgsl_cmdstream_issueibcmds_t param;
gsl_timestamp_t tmp;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_cmdstream_issueibcmds_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_cmdstream_issueibcmds(param.device_id, param.drawctxt_index, param.ibaddr, param.sizedwords, &tmp, param.flags);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.timestamp, &tmp, sizeof(gsl_timestamp_t)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
}
break;
}
case IOCTL_KGSL_CMDSTREAM_READTIMESTAMP:
{
kgsl_cmdstream_readtimestamp_t param;
gsl_timestamp_t tmp;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_cmdstream_readtimestamp_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
tmp = kgsl_cmdstream_readtimestamp(param.device_id, param.type);
if (copy_to_user(param.timestamp, &tmp, sizeof(gsl_timestamp_t)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = GSL_SUCCESS;
break;
}
case IOCTL_KGSL_CMDSTREAM_FREEMEMONTIMESTAMP:
{
int err;
kgsl_cmdstream_freememontimestamp_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_cmdstream_freememontimestamp_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
err = del_memblock_from_allocated_list(fd, param.memdesc);
if(err)
{
/* tried to remove a block of memory that is not allocated!
* NOTE that -EINVAL is Linux kernel's error codes!
* the drivers error codes COULD mix up with kernel's. */
kgslStatus = -EINVAL;
}
else
{
kgslStatus = kgsl_cmdstream_freememontimestamp(param.device_id,
param.memdesc,
param.timestamp,
param.type);
}
break;
}
case IOCTL_KGSL_CMDSTREAM_WAITTIMESTAMP:
{
kgsl_cmdstream_waittimestamp_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_cmdstream_waittimestamp_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_cmdstream_waittimestamp(param.device_id, param.timestamp, param.timeout);
break;
}
case IOCTL_KGSL_CMDWINDOW_WRITE:
{
kgsl_cmdwindow_write_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_cmdwindow_write_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_cmdwindow_write(param.device_id, param.target, param.addr, param.data);
break;
}
case IOCTL_KGSL_CONTEXT_CREATE:
{
kgsl_context_create_t param;
unsigned int tmp;
int tmpStatus;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_context_create_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_context_create(param.device_id, param.type, &tmp, param.flags);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.drawctxt_id, &tmp, sizeof(unsigned int)))
{
tmpStatus = kgsl_context_destroy(param.device_id, tmp);
/* is asserting ok? Basicly we should return the error from copy_to_user
* but will the user space interpret it correctly? Will the user space
* always check against GSL_SUCCESS or GSL_FAILURE as they are not the only
* return values.
*/
KOS_ASSERT(tmpStatus == GSL_SUCCESS);
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
else
{
add_device_context_to_array(fd, param.device_id, tmp);
}
}
break;
}
case IOCTL_KGSL_CONTEXT_DESTROY:
{
kgsl_context_destroy_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_context_destroy_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_context_destroy(param.device_id, param.drawctxt_id);
del_device_context_from_array(fd, param.device_id, param.drawctxt_id);
break;
}
case IOCTL_KGSL_DRAWCTXT_BIND_GMEM_SHADOW:
{
kgsl_drawctxt_bind_gmem_shadow_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_drawctxt_bind_gmem_shadow_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_drawctxt_bind_gmem_shadow(param.device_id, param.drawctxt_id, param.gmem_rect, param.shadow_x, param.shadow_y, param.shadow_buffer, param.buffer_id);
break;
}
case IOCTL_KGSL_SHAREDMEM_ALLOC:
{
kgsl_sharedmem_alloc_t param;
gsl_memdesc_t tmp;
int tmpStatus;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_alloc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_sharedmem_alloc(param.device_id, param.flags, param.sizebytes, &tmp);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.memdesc, &tmp, sizeof(gsl_memdesc_t)))
{
tmpStatus = kgsl_sharedmem_free(&tmp);
KOS_ASSERT(tmpStatus == GSL_SUCCESS);
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
else
{
add_memblock_to_allocated_list(fd, &tmp);
}
}
break;
}
case IOCTL_KGSL_SHAREDMEM_FREE:
{
kgsl_sharedmem_free_t param;
gsl_memdesc_t tmp;
int err;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_free_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
if (copy_from_user(&tmp, (void __user *)param.memdesc, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
err = del_memblock_from_allocated_list(fd, &tmp);
if(err)
{
printk(KERN_ERR "%s: tried to free memdesc that was not allocated!\n", __func__);
kgslStatus = err;
break;
}
kgslStatus = kgsl_sharedmem_free(&tmp);
if (kgslStatus == GSL_SUCCESS)
{
if (copy_to_user(param.memdesc, &tmp, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
}
break;
}
case IOCTL_KGSL_SHAREDMEM_READ:
{
kgsl_sharedmem_read_t param;
gsl_memdesc_t memdesc;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_read_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
if (copy_from_user(&memdesc, (void __user *)param.memdesc, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_sharedmem_read(&memdesc, param.dst, param.offsetbytes, param.sizebytes, true);
if (kgslStatus != GSL_SUCCESS)
{
printk(KERN_ERR "%s: kgsl_sharedmem_read failed\n", __func__);
}
break;
}
case IOCTL_KGSL_SHAREDMEM_WRITE:
{
kgsl_sharedmem_write_t param;
gsl_memdesc_t memdesc;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_write_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
if (copy_from_user(&memdesc, (void __user *)param.memdesc, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_sharedmem_write(&memdesc, param.offsetbytes, param.src, param.sizebytes, true);
if (kgslStatus != GSL_SUCCESS)
{
printk(KERN_ERR "%s: kgsl_sharedmem_write failed\n", __func__);
}
break;
}
case IOCTL_KGSL_SHAREDMEM_SET:
{
kgsl_sharedmem_set_t param;
gsl_memdesc_t memdesc;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_set_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
if (copy_from_user(&memdesc, (void __user *)param.memdesc, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_sharedmem_set(&memdesc, param.offsetbytes, param.value, param.sizebytes);
break;
}
case IOCTL_KGSL_SHAREDMEM_LARGESTFREEBLOCK:
{
kgsl_sharedmem_largestfreeblock_t param;
unsigned int largestfreeblock;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_largestfreeblock_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
largestfreeblock = kgsl_sharedmem_largestfreeblock(param.device_id, param.flags);
if (copy_to_user(param.largestfreeblock, &largestfreeblock, sizeof(unsigned int)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = GSL_SUCCESS;
break;
}
case IOCTL_KGSL_SHAREDMEM_CACHEOPERATION:
{
kgsl_sharedmem_cacheoperation_t param;
gsl_memdesc_t memdesc;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_cacheoperation_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
if (copy_from_user(&memdesc, (void __user *)param.memdesc, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_sharedmem_cacheoperation(&memdesc, param.offsetbytes, param.sizebytes, param.operation);
break;
}
case IOCTL_KGSL_SHAREDMEM_FROMHOSTPOINTER:
{
kgsl_sharedmem_fromhostpointer_t param;
gsl_memdesc_t memdesc;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_sharedmem_fromhostpointer_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
if (copy_from_user(&memdesc, (void __user *)param.memdesc, sizeof(gsl_memdesc_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_sharedmem_fromhostpointer(param.device_id, &memdesc, param.hostptr);
break;
}
case IOCTL_KGSL_ADD_TIMESTAMP:
{
kgsl_add_timestamp_t param;
gsl_timestamp_t tmp;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_add_timestamp_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
tmp = kgsl_add_timestamp(param.device_id, &tmp);
if (copy_to_user(param.timestamp, &tmp, sizeof(gsl_timestamp_t)))
{
printk(KERN_ERR "%s: copy_to_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = GSL_SUCCESS;
break;
}
case IOCTL_KGSL_DEVICE_CLOCK:
{
kgsl_device_clock_t param;
if (copy_from_user(¶m, (void __user *)arg, sizeof(kgsl_device_clock_t)))
{
printk(KERN_ERR "%s: copy_from_user error\n", __func__);
kgslStatus = GSL_FAILURE;
break;
}
kgslStatus = kgsl_device_clock(param.device, param.enable);
break;
}
default:
kgslStatus = -ENOTTY;
break;
}
return kgslStatus;
}
