static int kgsl_last_release_locked(void)
{
BUG_ON(kgsl_driver.grp_clk == NULL);
BUG_ON(kgsl_driver.imem_clk == NULL);
disable_irq(kgsl_driver.interrupt_num);
kgsl_yamato_stop(&kgsl_driver.yamato_device);
/* close devices */
kgsl_yamato_close(&kgsl_driver.yamato_device);
/* shutdown memory apertures */
kgsl_sharedmem_close(&kgsl_driver.shmem);
if (kgsl_driver.grp_pclk)
clk_disable(kgsl_driver.grp_pclk);
clk_disable(kgsl_driver.grp_clk);
clk_disable(kgsl_driver.imem_clk);
max_axi_freq_set = 0;
pm_qos_update_requirement(PM_QOS_SYSTEM_BUS_FREQ, DRIVER_NAME,
PM_QOS_DEFAULT_VALUE);
return 0;
}
int
kgsl_sharedmem_init(gsl_sharedmem_t *shmem)
{
int i;
int status;
gsl_shmemconfig_t config;
int mmu_virtualized;
gsl_apertureid_t aperture_id;
gsl_channelid_t channel_id;
unsigned int hostbaseaddr;
gpuaddr_t gpubaseaddr;
int sizebytes;
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_TRACE, "--> int kgsl_sharedmem_init(gsl_sharedmem_t *shmem=0x%08x)\n", shmem );
if (shmem->flags & GSL_FLAGS_INITIALIZED)
{
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_sharedmem_init. Return value %B\n", GSL_SUCCESS );
return (GSL_SUCCESS);
}
status = kgsl_hal_getshmemconfig(&config);
if (status != GSL_SUCCESS)
{
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_ERROR, "ERROR: Unable to get sharedmem config.\n" );
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_sharedmem_init. Return value %B\n", status );
return (status);
}
shmem->numapertures = config.numapertures;
for (i = 0; i < shmem->numapertures; i++)
{
aperture_id = config.apertures[i].id;
channel_id = config.apertures[i].channel;
hostbaseaddr = config.apertures[i].hostbase;
gpubaseaddr = config.apertures[i].gpubase;
sizebytes = config.apertures[i].sizebytes;
mmu_virtualized = 0;
// handle mmu virtualized aperture
if (aperture_id == GSL_APERTURE_MMU)
{
mmu_virtualized = 1;
aperture_id = GSL_APERTURE_EMEM;
}
// make sure aligned to page size
DEBUG_ASSERT((gpubaseaddr & ((1 << GSL_PAGESIZE_SHIFT) - 1)) == 0);
// make a multiple of page size
sizebytes = (sizebytes & ~((1 << GSL_PAGESIZE_SHIFT) - 1));
if (sizebytes > 0)
{
shmem->apertures[i].memarena = kgsl_memarena_create(aperture_id, mmu_virtualized, hostbaseaddr, gpubaseaddr, sizebytes);
if (!shmem->apertures[i].memarena)
{
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_ERROR, "ERROR: Unable to allocate memarena.\n" );
kgsl_sharedmem_close(shmem);
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_sharedmem_init. Return value %B\n", GSL_FAILURE );
return (GSL_FAILURE);
}
shmem->apertures[i].id = aperture_id;
shmem->apertures[i].channel = channel_id;
shmem->apertures[i].numbanks = 1;
// create aperture lookup table
if (GSL_SHMEM_APERTURE_ISMARKED(aperture_id))
{
// update "current aperture_id"/"current channel_id" index
shmem->aperturelookup[aperture_id][channel_id] = i;
}
else
{
// initialize "current aperture_id"/"channel_id" indexes
for (channel_id = GSL_CHANNEL_1; channel_id < GSL_CHANNEL_MAX; channel_id++)
{
shmem->aperturelookup[aperture_id][channel_id] = i;
}
GSL_SHMEM_APERTURE_MARK(aperture_id);
}
}
}
shmem->flags |= GSL_FLAGS_INITIALIZED;
kgsl_log_write( KGSL_LOG_GROUP_MEMORY | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_sharedmem_init. Return value %B\n", GSL_SUCCESS );
return (GSL_SUCCESS);
}