/* ATTENTION. The AL's extents are 4MB each, while the extents in the
* resync LRU-cache are 16MB each.
* The caller of this function has to hold an get_ldev() reference.
*
* TODO will be obsoleted once we have a caching lru of the on disk bitmap
*/
static void drbd_try_clear_on_disk_bm(struct drbd_conf *mdev, sector_t sector,
int count, int success)
{
struct lc_element *e;
struct update_odbm_work *udw;
unsigned int enr;
D_ASSERT(atomic_read(&mdev->local_cnt));
/* I simply assume that a sector/size pair never crosses
* a 16 MB extent border. (Currently this is true...) */
enr = BM_SECT_TO_EXT(sector);
e = lc_get(mdev->resync, enr);
if (e) {
struct bm_extent *ext = lc_entry(e, struct bm_extent, lce);
if (ext->lce.lc_number == enr) {
if (success)
ext->rs_left -= count;
else
ext->rs_failed += count;
if (ext->rs_left < ext->rs_failed) {
dev_err(DEV, "BAD! sector=%llus enr=%u rs_left=%d "
"rs_failed=%d count=%d\n",
(unsigned long long)sector,
ext->lce.lc_number, ext->rs_left,
ext->rs_failed, count);
dump_stack();
lc_put(mdev->resync, &ext->lce);
drbd_force_state(mdev, NS(conn, C_DISCONNECTING));
return;
}
} else {
/* Normally this element should be in the cache,
* since drbd_rs_begin_io() pulled it already in.
*
* But maybe an application write finished, and we set
* something outside the resync lru_cache in sync.
*/
int rs_left = drbd_bm_e_weight(mdev, enr);
if (ext->flags != 0) {
dev_warn(DEV, "changing resync lce: %d[%u;%02lx]"
" -> %d[%u;00]\n",
ext->lce.lc_number, ext->rs_left,
ext->flags, enr, rs_left);
ext->flags = 0;
}
if (ext->rs_failed) {
dev_warn(DEV, "Kicking resync_lru element enr=%u "
"out with rs_failed=%d\n",
ext->lce.lc_number, ext->rs_failed);
set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags);
}
ext->rs_left = rs_left;
ext->rs_failed = success ? 0 : count;
lc_changed(mdev->resync, &ext->lce);
}
lc_put(mdev->resync, &ext->lce);
/* no race, we are within the al_lock! */
if (ext->rs_left == ext->rs_failed) {
ext->rs_failed = 0;
udw = kmalloc(sizeof(*udw), GFP_ATOMIC);
if (udw) {
udw->enr = ext->lce.lc_number;
udw->w.cb = w_update_odbm;
drbd_queue_work_front(&mdev->data.work, &udw->w);
} else {
dev_warn(DEV, "Could not kmalloc an udw\n");
set_bit(WRITE_BM_AFTER_RESYNC, &mdev->flags);
}
}
} else {
DirectResult
voodoo_link_init_local( VoodooLink *link,
const char *path,
bool raw )
{
DirectResult ret;
int err;
struct sockaddr_un addr;
Link *l;
D_ASSERT( link != NULL );
D_ASSERT( path != NULL );
l = D_CALLOC( 1, sizeof(Link) );
if (!l)
return D_OOM();
/* Create the client socket. */
l->fd[0] = socket( AF_LOCAL, SOCK_STREAM, 0 );
if (l->fd[0] < 0) {
ret = errno2result( errno );
D_PERROR( "Voodoo/Link: Socket creation failed!\n" );
D_FREE( l );
return ret;
}
l->fd[1] = l->fd[0];
#if !VOODOO_BUILD_NO_SETSOCKOPT
if (setsockopt( l->fd[0], SOL_IP, IP_TOS, &tos, sizeof(tos) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set IP_TOS!\n" );
if (setsockopt( l->fd[0], SOL_TCP, TCP_NODELAY, &one, sizeof(one) ) < 0)
D_PERROR( "Voodoo/Manager: Could not set TCP_NODELAY!\n" );
#endif
D_INFO( "Voodoo/Link: Connecting to '%s'...\n", path );
memset( &addr, 0, sizeof(addr) );
/* Bind the socket to the local port. */
addr.sun_family = AF_UNIX;
snprintf( addr.sun_path + 1, UNIX_PATH_MAX - 1, "%s", path );
/* Connect to the server. */
err = connect( l->fd[0], (struct sockaddr*) &addr, strlen(addr.sun_path+1)+1 + sizeof(addr.sun_family) );
if (err) {
ret = errno2result( errno );
D_PERROR( "Voodoo/Link: Socket connect failed!\n" );
close( l->fd[0] );
D_FREE( l );
return ret;
}
D_INFO( "Voodoo/Link: Connected.\n" );
DUMP_SOCKET_OPTION( l->fd[0], SO_SNDLOWAT );
DUMP_SOCKET_OPTION( l->fd[0], SO_RCVLOWAT );
DUMP_SOCKET_OPTION( l->fd[0], SO_SNDBUF );
DUMP_SOCKET_OPTION( l->fd[0], SO_RCVBUF );
if (!raw) {
link->code = 0x80008676;
if (write( l->fd[1], &link->code, sizeof(link->code) ) != 4) {
D_ERROR( "Voodoo/Link: Coult not write initial four bytes!\n" );
close( l->fd[0] );
D_FREE( l );
return DR_IO;
}
}
D_INFO( "Voodoo/Link: Sent link code (%s).\n", raw ? "raw" : "packet" );
if (pipe( l->wakeup_fds ))
return errno2result( errno );
link->priv = l;
link->Close = Close;
link->Read = Read;
link->Write = Write;
link->SendReceive = SendReceive;
link->WakeUp = WakeUp;
link->WaitForData = WaitForData;
return DR_OK;
}
int
w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused)
{
struct update_al_work *aw = container_of(w, struct update_al_work, w);
struct lc_element *updated = aw->al_ext;
const unsigned int new_enr = aw->enr;
const unsigned int evicted = aw->old_enr;
struct al_transaction *buffer;
sector_t sector;
int i, n, mx;
unsigned int extent_nr;
u32 xor_sum = 0;
if (!get_ldev(mdev)) {
dev_err(DEV, "get_ldev() failed in w_al_write_transaction\n");
complete(&((struct update_al_work *)w)->event);
return 1;
}
/* do we have to do a bitmap write, first?
* TODO reduce maximum latency:
* submit both bios, then wait for both,
* instead of doing two synchronous sector writes. */
if (mdev->state.conn < C_CONNECTED && evicted != LC_FREE)
drbd_bm_write_sect(mdev, evicted/AL_EXT_PER_BM_SECT);
mutex_lock(&mdev->md_io_mutex); /* protects md_io_page, al_tr_cycle, ... */
buffer = (struct al_transaction *)page_address(mdev->md_io_page);
buffer->magic = __constant_cpu_to_be32(DRBD_MAGIC);
buffer->tr_number = cpu_to_be32(mdev->al_tr_number);
n = lc_index_of(mdev->act_log, updated);
buffer->updates[0].pos = cpu_to_be32(n);
buffer->updates[0].extent = cpu_to_be32(new_enr);
xor_sum ^= new_enr;
mx = min_t(int, AL_EXTENTS_PT,
mdev->act_log->nr_elements - mdev->al_tr_cycle);
for (i = 0; i < mx; i++) {
unsigned idx = mdev->al_tr_cycle + i;
extent_nr = lc_element_by_index(mdev->act_log, idx)->lc_number;
buffer->updates[i+1].pos = cpu_to_be32(idx);
buffer->updates[i+1].extent = cpu_to_be32(extent_nr);
xor_sum ^= extent_nr;
}
for (; i < AL_EXTENTS_PT; i++) {
buffer->updates[i+1].pos = __constant_cpu_to_be32(-1);
buffer->updates[i+1].extent = __constant_cpu_to_be32(LC_FREE);
xor_sum ^= LC_FREE;
}
mdev->al_tr_cycle += AL_EXTENTS_PT;
if (mdev->al_tr_cycle >= mdev->act_log->nr_elements)
mdev->al_tr_cycle = 0;
buffer->xor_sum = cpu_to_be32(xor_sum);
sector = mdev->ldev->md.md_offset
+ mdev->ldev->md.al_offset + mdev->al_tr_pos;
if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE))
drbd_chk_io_error(mdev, 1, TRUE);
if (++mdev->al_tr_pos >
div_ceil(mdev->act_log->nr_elements, AL_EXTENTS_PT))
mdev->al_tr_pos = 0;
D_ASSERT(mdev->al_tr_pos < MD_AL_MAX_SIZE);
mdev->al_tr_number++;
mutex_unlock(&mdev->md_io_mutex);
complete(&((struct update_al_work *)w)->event);
put_ldev(mdev);
return 1;
}
int
main( int argc, char *argv[] )
{
DirectResult ret;
FusionWorld *world;
StretRegion *root;
StretRegion *child[16];
int child_num = 0;
StretIteration iteration;
DFBRegion clip;
FusionSHMPoolShared *pool;
ret = fusion_enter( -1, 0, FER_ANY, &world );
if (ret)
return -1;
ret = fusion_shm_pool_create( world, "StReT Test Pool", 0x10000, direct_config->debug, &pool );
if (ret) {
fusion_exit( world, false );
return -1;
}
D_INFO( "StReT/Test: Starting...\n" );
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 2, 0, 0, 1000, 1000, NULL, 0, pool, &root );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create root region!\n" );
goto error_root;
}
else {
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 1, 10, 10, 100, 100, root, 1, pool, &child[child_num++] );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create child region!\n" );
goto error_child;
}
else {
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 1, 50, 50, 30, 30, child[0], 0, pool, &child[child_num++] );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create child region!\n" );
goto error_child;
}
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 1, 20, 20, 30, 30, child[0], 0, pool, &child[child_num++] );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create child region!\n" );
goto error_child;
}
else {
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 1, 10, 10, 10, 10, child[2], 0, pool, &child[child_num++] );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create child region!\n" );
goto error_child;
}
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 1, 20, 20, 10, 10, child[2], 0, pool, &child[child_num++] );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create child region!\n" );
goto error_child;
}
}
}
ret = stret_region_create( 0, NULL, 0, SRF_ACTIVE, 1, 200, 10, 200, 200, root, 0, pool, &child[child_num++] );
if (ret) {
D_DERROR( ret, "StReT/Test: Could not create child region!\n" );
goto error_child;
}
}
stret_iteration_init( &iteration, root, NULL );
clip = (DFBRegion) { 50, 50, 200, 59 };
D_ASSERT( stret_iteration_next( &iteration, &clip ) == child[4] );
//D_ASSERT( stret_iteration_next( &iteration, &clip ) == child[3] );
D_ASSERT( stret_iteration_next( &iteration, &clip ) == child[2] );
//D_ASSERT( stret_iteration_next( &iteration, &clip ) == child[1] );
D_ASSERT( stret_iteration_next( &iteration, &clip ) == child[0] );
D_ASSERT( stret_iteration_next( &iteration, &clip ) == child[5] );
D_ASSERT( stret_iteration_next( &iteration, &clip ) == root );
D_ASSERT( stret_iteration_next( &iteration, &clip ) == NULL );
stret_region_destroy( child[child_num-1] );
error_child:
while (--child_num)
stret_region_destroy( child[child_num-1] );
stret_region_destroy( root );
error_root:
fusion_shm_pool_destroy( world, pool );
fusion_exit( world, false );
return 0;
}
DFBResult
dfb_surface_pool_bridge_join( CoreDFB *core,
CoreSurfacePoolBridge *bridge,
const SurfacePoolBridgeFuncs *funcs,
void *context )
{
DFBResult ret;
D_MAGIC_ASSERT( bridge, CoreSurfacePoolBridge );
D_DEBUG_AT( Core_SurfPoolBridge, "%s( %p [%d], %p, %p )\n", __FUNCTION__, bridge, bridge->bridge_id, funcs, context );
D_ASSERT( core != NULL );
D_ASSERT( funcs != NULL );
D_ASSERT( bridge->bridge_id < MAX_SURFACE_POOL_BRIDGES );
D_ASSERT( bridge->bridge_id == bridge_count );
D_ASSERT( bridge_funcs[bridge->bridge_id] == NULL );
/* Enforce same order as initialization to be used during join. */
if (bridge->bridge_id != bridge_count) {
D_ERROR( "Core/SurfacePoolBridge: Wrong order of joining bridges, got %d, should be %d!\n",
bridge->bridge_id, bridge_count );
return DFB_BUG;
}
/* Allocate local bridge data. */
if (bridge->bridge_local_data_size &&
!(bridge_locals[bridge->bridge_id] = D_CALLOC( 1, bridge->bridge_local_data_size )))
return D_OOM();
/* Set function table of the bridge. */
bridge_funcs[bridge->bridge_id] = funcs;
/* Add to global bridge list. */
bridge_array[bridge->bridge_id] = bridge;
/* Adjust bridge count. */
if (bridge_count < bridge->bridge_id + 1)
bridge_count = bridge->bridge_id + 1;
funcs = get_funcs( bridge );
if (funcs->JoinPoolBridge) {
ret = funcs->JoinPoolBridge( core, bridge, bridge->data, get_local(bridge), context );
if (ret) {
D_DERROR( ret, "Core/SurfacePoolBridge: Joining '%s' failed!\n", bridge->desc.name );
if (bridge_locals[bridge->bridge_id]) {
D_FREE( bridge_locals[bridge->bridge_id] );
bridge_locals[bridge->bridge_id] = NULL;
}
bridge_array[bridge->bridge_id] = NULL;
bridge_funcs[bridge->bridge_id] = NULL;
bridge_count--;
return ret;
}
}
/* Insert new bridge into priority order */
insert_bridge_local( bridge );
return DFB_OK;
}
static DFBResult
wm_init_stack( CoreWindowStack *stack,
void *wm_data,
void *stack_data )
{
DFBResult ret;
StackData *data = stack_data;
WMData *wmdata = wm_data;
CoreLayerContext *context;
CoreLayerRegion *region;
D_ASSERT( stack != NULL );
D_ASSERT( stack->context != NULL );
D_ASSERT( wm_data != NULL );
D_ASSERT( stack_data != NULL );
context = stack->context;
D_ASSERT( context != NULL );
ret = dfb_layer_context_get_primary_region( context, true, ®ion );
if (ret) {
D_DERROR( ret, "WM/UniQuE: Could not get the primary region!\n" );
return ret;
}
/* Create the unique context. */
ret = unique_context_create( wmdata->core, stack, region, context->layer_id,
wmdata->shared, &data->context );
dfb_layer_region_unref( region );
if (ret) {
D_DERROR( ret, "WM/UniQuE: Could not create the context!\n" );
return ret;
}
/* Attach the global context listener. */
ret = unique_context_attach_global( data->context,
UNIQUE_WM_MODULE_CONTEXT_LISTENER,
data, &data->context_reaction );
if (ret) {
unique_context_unref( data->context );
D_DERROR( ret, "WM/UniQuE: Could not attach global context listener!\n" );
return ret;
}
/* Inherit all local references from the layer context. */
ret = unique_context_inherit( data->context, context );
unique_context_unref( data->context );
if (ret) {
unique_context_detach_global( data->context, &data->context_reaction );
D_DERROR( ret, "WM/UniQuE: Could not inherit from layer context!\n" );
return ret;
}
data->stack = stack;
D_MAGIC_SET( data, StackData );
return DFB_OK;
}
static int
cont_prop_read(struct rdb_tx *tx, struct cont *cont, uint64_t bits,
daos_prop_t **prop_out)
{
daos_prop_t *prop = NULL;
daos_iov_t value;
uint64_t val, bitmap;
uint32_t idx = 0, nr = 0;
int rc;
bitmap = bits & DAOS_CO_QUERY_PROP_ALL;
while (idx < DAOS_CO_QUERY_PROP_BITS_NR) {
if (bitmap & 0x1)
nr++;
idx++;
bitmap = bitmap >> 1;
};
if (nr == 0)
return 0;
D_ASSERT(nr <= DAOS_CO_QUERY_PROP_BITS_NR);
prop = daos_prop_alloc(nr);
if (prop == NULL)
return -DER_NOMEM;
idx = 0;
if (bits & DAOS_CO_QUERY_PROP_LABEL) {
daos_iov_set(&value, NULL, 0);
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_label,
&value);
if (rc != 0)
return rc;
if (value.iov_len > DAOS_PROP_LABEL_MAX_LEN) {
D_ERROR("bad label length %zu (> %d).\n", value.iov_len,
DAOS_PROP_LABEL_MAX_LEN);
D_GOTO(out, rc = -DER_NOMEM);
}
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_LABEL;
prop->dpp_entries[idx].dpe_str =
strndup(value.iov_buf, value.iov_len);
if (prop->dpp_entries[idx].dpe_str == NULL)
D_GOTO(out, rc = -DER_NOMEM);
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_LAYOUT_TYPE) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_layout_type,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_LAYOUT_TYPE;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_LAYOUT_VER) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_layout_ver,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_LAYOUT_VER;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_CSUM) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_csum,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_CSUM;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_REDUN_FAC) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_redun_fac,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_REDUN_FAC;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_REDUN_LVL) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_redun_lvl,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_REDUN_LVL;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_SNAPSHOT_MAX) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop,
&ds_cont_prop_snapshot_max, &value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_SNAPSHOT_MAX;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_COMPRESS) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_compress,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_COMPRESS;
prop->dpp_entries[idx].dpe_val = val;
idx++;
}
if (bits & DAOS_CO_QUERY_PROP_ENCRYPT) {
daos_iov_set(&value, &val, sizeof(val));
rc = rdb_tx_lookup(tx, &cont->c_prop, &ds_cont_prop_encrypt,
&value);
if (rc != 0)
D_GOTO(out, rc);
D_ASSERT(idx < nr);
prop->dpp_entries[idx].dpe_type = DAOS_PROP_CO_ENCRYPT;
prop->dpp_entries[idx].dpe_val = val;
}
out:
if (rc)
daos_prop_free(prop);
else
*prop_out = prop;
return rc;
}
static void *
processor_thread( DirectThread *thread,
void *ctx )
{
DirectResult ret;
bool started = false;
DirectProcessor *processor = ctx;
const DirectProcessorFuncs *funcs;
D_DEBUG_AT( Direct_Processor, "%s( %p, %p )...\n", __FUNCTION__, thread, ctx );
D_MAGIC_ASSERT( processor, DirectProcessor );
funcs = processor->funcs;
D_ASSERT( funcs != NULL );
D_ASSERT( funcs->Process != NULL );
while (!processor->stop) {
ProcessorCommand *command = direct_fifo_pull( &processor->commands );
if (command) {
D_DEBUG_AT( Direct_Processor, "=---### %p - %p (%s)\n", command, command + 1, processor->name );
D_MAGIC_ASSERT( command, ProcessorCommand );
if (!started) {
if (funcs->Start)
funcs->Start( processor, processor->context );
started = true;
}
ret = funcs->Process( processor, command + 1, processor->context );
if (ret)
D_DERROR( ret, "Direct/Processor: Processing failed! (%s)\n", processor->name );
}
else {
if (started) {
if (funcs->Stop)
funcs->Stop( processor, processor->context );
started = false;
}
#if 0
while (processor->lock) {
direct_mutex_lock( &processor->lock_mutex );
processor->locked = true;
direct_waitqueue_signal( &processor->lock_cond );
while (processor->lock)
direct_waitqueue_wait( &processor->lock_cond, &processor->lock_mutex );
processor->locked = false;
direct_waitqueue_signal( &processor->lock_cond );
direct_mutex_unlock( &processor->lock_mutex );
}
#endif
if (processor->idle_ms) {
while (direct_fifo_wait_timed( &processor->commands, processor->idle_ms ) == DR_TIMEOUT) {
if (funcs->Idle)
funcs->Idle( processor, processor->context );
}
}
else {
if (funcs->Idle)
funcs->Idle( processor, processor->context );
direct_fifo_wait( &processor->commands );
}
}
}
return NULL;
}
/* Helper for __req_mod().
* Set m->bio to the master bio, if it is fit to be completed,
* or leave it alone (it is initialized to NULL in __req_mod),
* if it has already been completed, or cannot be completed yet.
* If m->bio is set, the error status to be returned is placed in m->error.
*/
void _req_may_be_done(struct drbd_request *req, struct bio_and_error *m)
{
const unsigned long s = req->rq_state;
struct drbd_conf *mdev = req->mdev;
int rw = req->rq_state & RQ_WRITE ? WRITE : READ;
/* we must not complete the master bio, while it is
* still being processed by _drbd_send_zc_bio (drbd_send_dblock)
* not yet acknowledged by the peer
* not yet completed by the local io subsystem
* these flags may get cleared in any order by
* the worker,
* the receiver,
* the bio_endio completion callbacks.
*/
if (s & RQ_NET_QUEUED)
return;
if (s & RQ_NET_PENDING)
return;
if (s & RQ_LOCAL_PENDING && !(s & RQ_LOCAL_ABORTED))
return;
if (req->master_bio) {
/* this is data_received (remote read)
* or protocol C P_WRITE_ACK
* or protocol B P_RECV_ACK
* or protocol A "handed_over_to_network" (SendAck)
* or canceled or failed,
* or killed from the transfer log due to connection loss.
*/
/*
* figure out whether to report success or failure.
*
* report success when at least one of the operations succeeded.
* or, to put the other way,
* only report failure, when both operations failed.
*
* what to do about the failures is handled elsewhere.
* what we need to do here is just: complete the master_bio.
*
* local completion error, if any, has been stored as ERR_PTR
* in private_bio within drbd_endio_pri.
*/
int ok = (s & RQ_LOCAL_OK) || (s & RQ_NET_OK);
int error = PTR_ERR(req->private_bio);
/* remove the request from the conflict detection
* respective block_id verification hash */
if (!hlist_unhashed(&req->collision))
hlist_del(&req->collision);
else
D_ASSERT((s & (RQ_NET_MASK & ~RQ_NET_DONE)) == 0);
/* for writes we need to do some extra housekeeping */
if (rw == WRITE)
_about_to_complete_local_write(mdev, req);
/* Update disk stats */
_drbd_end_io_acct(mdev, req);
m->error = ok ? 0 : (error ?: -EIO);
m->bio = req->master_bio;
req->master_bio = NULL;
}
DFBResult
dfb_screen_get_layer_dimension( CoreScreen *screen,
CoreLayer *layer,
int *ret_width,
int *ret_height )
{
int i;
DFBResult ret = DFB_UNSUPPORTED;
CoreScreenShared *shared;
ScreenFuncs *funcs;
D_ASSERT( screen != NULL );
D_ASSERT( screen->shared != NULL );
D_ASSERT( screen->funcs != NULL );
D_ASSERT( layer != NULL );
D_ASSERT( ret_width != NULL );
D_ASSERT( ret_height != NULL );
shared = screen->shared;
funcs = screen->funcs;
if (funcs->GetMixerState) {
for (i=0; i<shared->description.mixers; i++) {
const DFBScreenMixerConfig *config = &shared->mixers[i].configuration;
if ((config->flags & DSMCONF_LAYERS) &&
DFB_DISPLAYLAYER_IDS_HAVE( config->layers, dfb_layer_id(layer) ))
{
CoreMixerState state;
ret = funcs->GetMixerState( screen, screen->driver_data, screen->screen_data, i, &state );
if (ret == DFB_OK) {
if (state.flags & CMSF_DIMENSION) {
*ret_width = state.dimension.w;
*ret_height = state.dimension.h;
return DFB_OK;
}
ret = DFB_UNSUPPORTED;
}
}
}
for (i=0; i<shared->description.mixers; i++) {
const DFBScreenMixerDescription *desc = &shared->mixers[i].description;
if ((desc->caps & DSMCAPS_SUB_LAYERS) &&
DFB_DISPLAYLAYER_IDS_HAVE( desc->sub_layers, dfb_layer_id(layer) ))
{
CoreMixerState state;
ret = funcs->GetMixerState( screen, screen->driver_data, screen->screen_data, i, &state );
if (ret == DFB_OK) {
if (state.flags & CMSF_DIMENSION) {
*ret_width = state.dimension.w;
*ret_height = state.dimension.h;
return DFB_OK;
}
ret = DFB_UNSUPPORTED;
}
}
}
}
if (funcs->GetScreenSize)
ret = funcs->GetScreenSize( screen,
screen->driver_data, screen->screen_data,
ret_width, ret_height );
return ret;
}
static void
root_update( StretRegion *region,
void *region_data,
void *update_data,
unsigned long arg,
int x,
int y,
const DFBRegion *updates,
int num )
{
int i;
CoreWindowStack *stack;
UniqueContext *context = region_data;
CardState *state = update_data;
D_ASSERT( region != NULL );
D_ASSERT( region_data != NULL );
D_ASSERT( update_data != NULL );
D_ASSERT( updates != NULL );
D_ASSERT( x == 0 );
D_ASSERT( y == 0 );
D_MAGIC_ASSERT( context, UniqueContext );
D_MAGIC_ASSERT( state, CardState );
stack = context->stack;
D_ASSERT( stack != NULL );
D_ASSERT( stack->bg.image != NULL || (stack->bg.mode != DLBM_IMAGE &&
stack->bg.mode != DLBM_TILE) );
D_DEBUG_AT( UniQuE_Root, "root_update( region %p, num %d )\n", region, num );
#if D_DEBUG_ENABLED
for (i=0; i<num; i++) {
D_DEBUG_AT( UniQuE_Root, " (%d) %4d,%4d - %4dx%4d\n",
i, DFB_RECTANGLE_VALS_FROM_REGION( &updates[i] ) );
}
#endif
switch (stack->bg.mode) {
case DLBM_COLOR: {
CoreSurface *dest = state->destination;
DFBColor *color = &stack->bg.color;
DFBRectangle rects[num];
/* Set the background color. */
if (DFB_PIXELFORMAT_IS_INDEXED( dest->config.format ))
dfb_state_set_color_index( state,
dfb_palette_search( dest->palette, color->r,
color->g, color->b, color->a ) );
else
dfb_state_set_color( state, color );
for (i=0; i<num; i++)
dfb_rectangle_from_region( &rects[i], &updates[i] );
/* Simply fill the background. */
dfb_gfxcard_fillrectangles( rects, num, state );
break;
}
case DLBM_IMAGE: {
CoreSurface *bg = stack->bg.image;
/* Set blitting source. */
state->source = bg;
state->modified |= SMF_SOURCE;
/* Set blitting flags. */
dfb_state_set_blitting_flags( state, DSBLIT_NOFX );
/* Check the size of the background image. */
if (bg->config.size.w == stack->width && bg->config.size.h == stack->height) {
for (i=0; i<num; i++) {
DFBRectangle dst = DFB_RECTANGLE_INIT_FROM_REGION( &updates[i] );
/* Simple blit for 100% fitting background image. */
dfb_gfxcard_blit( &dst, dst.x, dst.y, state );
}
}
else {
DFBRegion clip = state->clip;
for (i=0; i<num; i++) {
DFBRectangle src = { 0, 0, bg->config.size.w, bg->config.size.h };
DFBRectangle dst = { 0, 0, stack->width, stack->height };
/* Change clipping region. */
dfb_state_set_clip( state, &updates[i] );
/* Stretch blit for non fitting background images. */
dfb_gfxcard_stretchblit( &src, &dst, state );
}
/* Restore clipping region. */
dfb_state_set_clip( state, &clip );
}
/* Reset blitting source. */
state->source = NULL;
state->modified |= SMF_SOURCE;
break;
}
case DLBM_TILE: {
CoreSurface *bg = stack->bg.image;
DFBRegion clip = state->clip;
/* Set blitting source. */
state->source = bg;
state->modified |= SMF_SOURCE;
/* Set blitting flags. */
dfb_state_set_blitting_flags( state, DSBLIT_NOFX );
for (i=0; i<num; i++) {
DFBRectangle src = { 0, 0, bg->config.size.w, bg->config.size.h };
/* Change clipping region. */
dfb_state_set_clip( state, &updates[i] );
/* Tiled blit (aligned). */
dfb_gfxcard_tileblit( &src, 0, 0, stack->width, stack->height, state );
}
/* Restore clipping region. */
dfb_state_set_clip( state, &clip );
/* Reset blitting source. */
state->source = NULL;
state->modified |= SMF_SOURCE;
break;
}
case DLBM_DONTCARE:
break;
default:
D_BUG( "unknown background mode" );
break;
}
}
static DFBResult
x11Read( CoreSurfacePool *pool,
void *pool_data,
void *pool_local,
CoreSurfaceAllocation *allocation,
void *alloc_data,
void *destination,
int pitch,
const DFBRectangle *rect )
{
XImage *image;
XImage *sub;
x11PoolLocalData *local = pool_local;
x11AllocationData *alloc = alloc_data;
DFBX11 *x11 = local->x11;
D_DEBUG_AT( X11_Surfaces, "%s( %p )\n", __FUNCTION__, allocation );
D_DEBUG_AT( X11_Surfaces, " -> allocation: %s\n", ToString_CoreSurfaceAllocation( allocation ) );
D_MAGIC_ASSERT( pool, CoreSurfacePool );
D_MAGIC_ASSERT( allocation, CoreSurfaceAllocation );
D_ASSERT( destination != NULL );
D_ASSERT( pitch >= 0 );
DFB_RECTANGLE_ASSERT( rect );
D_DEBUG_AT( X11_Surfaces, " => %p 0x%08lx [%4d,%4d-%4dx%4d]\n", alloc, alloc->xid, DFB_RECTANGLE_VALS(rect) );
XLockDisplay( x11->display );
#if 1
image = XCreateImage( x11->display, alloc->visual, alloc->depth, ZPixmap, 0, destination, rect->w, rect->h, 32, pitch );
if (!image) {
D_ERROR( "X11/Surfaces: XCreateImage( %dx%d, depth %d ) failed!\n", rect->w, rect->h, alloc->depth );
XUnlockDisplay( x11->display );
return DFB_FAILURE;
}
sub = XGetSubImage( x11->display, alloc->xid, rect->x, rect->y, rect->w, rect->h, ~0, ZPixmap, image, 0, 0 );
#else
image = XGetImage( x11->display, alloc->window ? alloc->window : alloc->xid,
rect->x, rect->y, rect->w, rect->h, ~0, ZPixmap );
#endif
if (image) {
// dfb_surface_buffer_dump_type_locked2( allocation->buffer, ".", "x11Read", false, image->data, image->bytes_per_line );
/* FIXME: Why the X-hell is XDestroyImage() freeing *MY* data? */
image->data = NULL;
XDestroyImage( image );
}
XUnlockDisplay( x11->display );
#if 1
if (!sub) {
D_ERROR( "X11/Surfaces: XGetSubImage( %d,%d-%dx%d ) failed!\n", DFB_RECTANGLE_VALS(rect) );
return DFB_FAILURE;
}
#endif
return DFB_OK;
}
ColEdge(std::pair<int, int> p)
: tar(p.first),
col(p.second)
{ D_ASSERT(tar > 0); }
ColEdge(int _target, int _colour)
: tar(_target),
col(_colour)
{ D_ASSERT(tar > 0); }
/*
* listen to the layer's surface
*/
ReactionResult
_dfb_layer_region_surface_listener( const void *msg_data, void *ctx )
{
CoreSurfaceNotificationFlags flags;
CoreSurface *surface;
CoreLayer *layer;
CoreLayerShared *shared;
DisplayLayerFuncs *funcs;
const CoreSurfaceNotification *notification = msg_data;
CoreLayerRegion *region = ctx;
D_ASSERT( notification != NULL );
D_ASSERT( region != NULL );
D_ASSERT( region->context != NULL );
D_DEBUG_AT( Core_Layers, "_dfb_layer_region_surface_listener( %p, %p ) <- 0x%08x\n",
notification, region, notification->flags );
D_ASSERT( notification->surface != NULL );
D_ASSUME( notification->surface == region->surface );
if (notification->surface != region->surface)
return RS_OK;
layer = dfb_layer_at( region->context->layer_id );
D_ASSERT( layer != NULL );
D_ASSERT( layer->funcs != NULL );
D_ASSERT( layer->funcs->SetRegion != NULL );
D_ASSERT( layer->shared != NULL );
funcs = layer->funcs;
shared = layer->shared;
flags = notification->flags;
surface = notification->surface;
if (flags & CSNF_DESTROY) {
D_WARN( "layer region surface destroyed" );
region->surface = NULL;
return RS_REMOVE;
}
if (dfb_layer_region_lock( region ))
return RS_OK;
if (D_FLAGS_ARE_SET( region->state, CLRSF_REALIZED | CLRSF_CONFIGURED )) {
if (D_FLAGS_IS_SET( flags, CSNF_PALETTE_CHANGE | CSNF_PALETTE_UPDATE )) {
if (surface->palette)
funcs->SetRegion( layer,
layer->driver_data, layer->layer_data,
region->region_data, ®ion->config,
CLRCF_PALETTE, surface, surface->palette );
}
if ((flags & CSNF_FIELD) && funcs->SetInputField)
funcs->SetInputField( layer,
layer->driver_data, layer->layer_data,
region->region_data, surface->field );
if ((flags & CSNF_ALPHA_RAMP) && (shared->description.caps & DLCAPS_ALPHA_RAMP)) {
region->config.alpha_ramp[0] = surface->alpha_ramp[0];
region->config.alpha_ramp[1] = surface->alpha_ramp[1];
region->config.alpha_ramp[2] = surface->alpha_ramp[2];
region->config.alpha_ramp[3] = surface->alpha_ramp[3];
funcs->SetRegion( layer,
layer->driver_data, layer->layer_data,
region->region_data, ®ion->config,
CLRCF_ALPHA_RAMP, surface, surface->palette );
}
}
dfb_layer_region_unlock( region );
return RS_OK;
}
unsigned int
dfb_colorhash_lookup( DFBColorHashCore *core,
CorePalette *palette,
u8 r,
u8 g,
u8 b,
u8 a )
{
unsigned int pixel = PIXEL_ARGB(a, r, g, b);
unsigned int index = (pixel ^ (unsigned long) palette) % HASH_SIZE;
DFBColorHashCoreShared *shared;
// D_ASSUME( core != NULL );
if (core) {
D_MAGIC_ASSERT( core, DFBColorHashCore );
D_MAGIC_ASSERT( core->shared, DFBColorHashCoreShared );
}
else
core = core_colorhash;
shared = core->shared;
D_ASSERT( shared->hash != NULL );
fusion_skirmish_prevail( &shared->hash_lock );
/* try a lookup in the hash table */
if (shared->hash[index].palette == palette && shared->hash[index].pixel == pixel) {
/* set the return value */
index = shared->hash[index].index;
} else { /* look for the closest match */
DFBColor *entries = palette->entries;
int min_diff = 0;
unsigned int i, min_index = 0;
for (i = 0; i < palette->num_entries; i++) {
int diff;
int r_diff = (int) entries[i].r - (int) r;
int g_diff = (int) entries[i].g - (int) g;
int b_diff = (int) entries[i].b - (int) b;
int a_diff = (int) entries[i].a - (int) a;
if (a)
diff = (r_diff * r_diff + g_diff * g_diff +
b_diff * b_diff + ((a_diff * a_diff) >> 6));
else
diff = (r_diff + g_diff + b_diff + (a_diff * a_diff));
if (i == 0 || diff < min_diff) {
min_diff = diff;
min_index = i;
}
if (!diff)
break;
}
/* store the matching entry in the hash table */
shared->hash[index].pixel = pixel;
shared->hash[index].index = min_index;
shared->hash[index].palette = palette;
/* set the return value */
index = min_index;
}
static DFBResult
realize_region( CoreLayerRegion *region )
{
DFBResult ret;
CoreLayer *layer;
CoreLayerShared *shared;
DisplayLayerFuncs *funcs;
D_ASSERT( region != NULL );
D_ASSERT( region->context != NULL );
D_ASSERT( D_FLAGS_IS_SET( region->state, CLRSF_CONFIGURED ) );
D_ASSERT( ! D_FLAGS_IS_SET( region->state, CLRSF_REALIZED ) );
layer = dfb_layer_at( region->context->layer_id );
D_ASSERT( layer != NULL );
D_ASSERT( layer->shared != NULL );
D_ASSERT( layer->funcs != NULL );
shared = layer->shared;
funcs = layer->funcs;
D_ASSERT( ! fusion_vector_contains( &shared->added_regions, region ) );
/* Allocate the driver's region data. */
if (funcs->RegionDataSize) {
int size = funcs->RegionDataSize();
if (size > 0) {
region->region_data = SHCALLOC( 1, size );
if (!region->region_data)
return D_OOSHM();
}
}
D_DEBUG_AT( Core_Layers, "Adding region (%d, %d - %dx%d) to '%s'.\n",
DFB_RECTANGLE_VALS( ®ion->config.dest ), shared->description.name );
/* Add the region to the driver. */
if (funcs->AddRegion) {
ret = funcs->AddRegion( layer,
layer->driver_data, layer->layer_data,
region->region_data, ®ion->config );
if (ret) {
D_DERROR( ret, "Core/Layers: Could not add region!\n" );
if (region->region_data) {
SHFREE( region->region_data );
region->region_data = NULL;
}
return ret;
}
}
/* Add the region to the 'added' list. */
fusion_vector_add( &shared->added_regions, region );
/* Update the region's state. */
D_FLAGS_SET( region->state, CLRSF_REALIZED );
/* Initially setup hardware. */
ret = set_region( region, ®ion->config, CLRCF_ALL, region->surface );
if (ret) {
unrealize_region( region );
return ret;
}
return DFB_OK;
}
static DFBResult
system_initialize( CoreDFB *core, void **data )
{
int i, n;
CoreScreen *screen;
D_ASSERT( dfb_x11 == NULL );
dfb_x11 = (DFBX11*) SHCALLOC( dfb_core_shmpool(core), 1, sizeof(DFBX11) );
if (!dfb_x11) {
D_ERROR( "DirectFB/X11: Couldn't allocate shared memory!\n" );
return D_OOSHM();
}
dfb_x11_core = core;
fusion_skirmish_init( &dfb_x11->lock, "X11 System", dfb_core_world(core) );
fusion_call_init( &dfb_x11->call, call_handler, NULL, dfb_core_world(core) );
dfb_surface_pool_initialize( core, &x11SurfacePoolFuncs, &dfb_x11->surface_pool );
screen = dfb_screens_register( NULL, NULL, &x11PrimaryScreenFuncs );
dfb_layers_register( screen, NULL, &x11PrimaryLayerFuncs );
fusion_arena_add_shared_field( dfb_core_arena( core ), "x11", dfb_x11 );
*data = dfb_x11;
XInitThreads();
dfb_x11->data_shmpool = dfb_core_shmpool_data( core );
dfb_x11->display = XOpenDisplay(getenv("DISPLAY"));
if (!dfb_x11->display) {
D_ERROR("X11: Error in XOpenDisplay for '%s'\n", getenv("DISPLAY"));
return DFB_INIT;
}
dfb_x11->screenptr = DefaultScreenOfDisplay(dfb_x11->display);
dfb_x11->screennum = DefaultScreen(dfb_x11->display);
for (i=0; i<dfb_x11->screenptr->ndepths; i++) {
const Depth *depth = &dfb_x11->screenptr->depths[i];
for (n=0; n<depth->nvisuals; n++) {
Visual *visual = &depth->visuals[n];
D_DEBUG( "X11/Visual: ID %02lu, depth %d, red 0x%06lx, green 0x%06lx, blue 0x%06lx, %d bits/rgb, %d entries\n",
visual->visualid, depth->depth,
visual->red_mask, visual->green_mask, visual->blue_mask,
visual->bits_per_rgb, visual->map_entries );
switch (depth->depth) {
case 24:
if (visual->red_mask == 0xff0000 &&
visual->green_mask == 0x00ff00 &&
visual->blue_mask == 0x0000ff) {
dfb_x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB32)] = visual;
dfb_x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_ARGB)] = visual;
}
break;
case 16:
if (visual->red_mask == 0xf800 &&
visual->green_mask == 0x07e0 &&
visual->blue_mask == 0x001f)
dfb_x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB16)] = visual;
break;
case 15:
if (visual->red_mask == 0x7c00 &&
visual->green_mask == 0x03e0 &&
visual->blue_mask == 0x001f)
dfb_x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB555)] = visual;
break;
}
}
}
return DFB_OK;
}
/* HACK: implementation dumped in here for now, will move into context */
static DFBResult
wm_update_cursor( CoreWindowStack *stack,
void *wm_data,
void *stack_data,
CoreCursorUpdateFlags flags )
{
DFBResult ret;
DFBRegion old_region;
WMData *wmdata = wm_data;
StackData *data = stack_data;
bool restored = false;
CoreLayer *layer;
CoreLayerRegion *region;
CardState *state;
CoreSurface *surface;
UniqueContext *context;
D_ASSERT( stack != NULL );
D_ASSERT( stack->context != NULL );
D_ASSERT( wm_data != NULL );
D_ASSERT( stack_data != NULL );
D_MAGIC_ASSERT( data, StackData );
context = data->context;
D_MAGIC_ASSERT( context, UniqueContext );
/* Optimize case of invisible cursor moving. */
if (!(flags & ~(CCUF_POSITION | CCUF_SHAPE)) && (!stack->cursor.opacity || !stack->cursor.enabled)) {
context->cursor_bs_valid = false;
return DFB_OK;
}
layer = dfb_layer_at( context->layer_id );
state = &layer->state;
region = context->region;
surface = context->surface;
D_ASSERT( region != NULL );
D_ASSERT( surface != NULL );
if (flags & CCUF_ENABLE) {
CoreSurface *cursor_bs;
DFBSurfaceCapabilities caps = DSCAPS_NONE;
dfb_surface_caps_apply_policy( stack->cursor.policy, &caps );
D_ASSERT( context->cursor_bs == NULL );
/* Create the cursor backing store surface. */
ret = dfb_surface_create_simple( wmdata->core, stack->cursor.size.w, stack->cursor.size.h,
region->config.format, region->config.colorspace,
caps, CSTF_SHARED | CSTF_CURSOR,
0, /* FIXME: no shared cursor objects, no cursor id */
NULL, &cursor_bs );
if (ret) {
D_ERROR( "WM/Default: Failed creating backing store for cursor!\n" );
return ret;
}
ret = dfb_surface_globalize( cursor_bs );
D_ASSERT( ret == DFB_OK );
/* Ensure valid back buffer for now.
* FIXME: Keep a flag to know when back/front have been swapped and need a sync.
*/
switch (region->config.buffermode) {
case DLBM_BACKVIDEO:
case DLBM_TRIPLE:
dfb_gfx_copy( surface, surface, NULL );
break;
default:
break;
}
context->cursor_bs = cursor_bs;
}
else {
D_ASSERT( context->cursor_bs != NULL );
/* restore region under cursor */
if (context->cursor_drawn) {
DFBRectangle rect = { 0, 0,
context->cursor_region.x2 - context->cursor_region.x1 + 1,
context->cursor_region.y2 - context->cursor_region.y1 + 1 };
D_ASSERT( stack->cursor.opacity || (flags & CCUF_OPACITY) );
D_ASSERT( context->cursor_bs_valid );
dfb_gfx_copy_to( context->cursor_bs, surface, &rect,
context->cursor_region.x1, context->cursor_region.y1, false );
context->cursor_drawn = false;
old_region = context->cursor_region;
restored = true;
}
if (flags & CCUF_SIZE) {
ret = dfb_surface_reformat( context->cursor_bs,
stack->cursor.size.w, stack->cursor.size.h,
context->cursor_bs->config.format );
if (ret) {
D_ERROR( "WM/Default: Failed resizing backing store for cursor!\n" );
return ret;
}
}
}
if (flags & (CCUF_ENABLE | CCUF_POSITION | CCUF_SIZE | CCUF_OPACITY)) {
context->cursor_bs_valid = false;
context->cursor_region.x1 = stack->cursor.x - stack->cursor.hot.x;
context->cursor_region.y1 = stack->cursor.y - stack->cursor.hot.y;
context->cursor_region.x2 = context->cursor_region.x1 + stack->cursor.size.w - 1;
context->cursor_region.y2 = context->cursor_region.y1 + stack->cursor.size.h - 1;
if (!dfb_region_intersect( &context->cursor_region, 0, 0, stack->width - 1, stack->height - 1 )) {
D_BUG( "invalid cursor region" );
return DFB_BUG;
}
}
D_ASSERT( context->cursor_bs != NULL );
if (flags & CCUF_DISABLE) {
dfb_surface_unlink( &context->cursor_bs );
}
else if (stack->cursor.opacity) {
/* backup region under cursor */
if (!context->cursor_bs_valid) {
DFBRectangle rect = DFB_RECTANGLE_INIT_FROM_REGION( &context->cursor_region );
D_ASSERT( !context->cursor_drawn );
/* FIXME: this requires using blitted flipping all the time,
but fixing it seems impossible, for now DSFLIP_BLIT is forced
in repaint_stack() when the cursor is enabled. */
dfb_gfx_copy_to( surface, context->cursor_bs, &rect, 0, 0, true );
context->cursor_bs_valid = true;
}
/* Set destination. */
state->destination = surface;
state->modified |= SMF_DESTINATION;
/* Set clipping region. */
dfb_state_set_clip( state, &context->cursor_region );
/* draw cursor */
unique_draw_cursor( stack, context, state, &context->cursor_region );
/* Reset destination. */
state->destination = NULL;
state->modified |= SMF_DESTINATION;
context->cursor_drawn = true;
if (restored) {
if (dfb_region_region_intersects( &old_region, &context->cursor_region ))
dfb_region_region_union( &old_region, &context->cursor_region );
else
dfb_layer_region_flip_update( region, &context->cursor_region, DSFLIP_BLIT );
dfb_layer_region_flip_update( region, &old_region, DSFLIP_BLIT );
}
else
dfb_layer_region_flip_update( region, &context->cursor_region, DSFLIP_BLIT );
}
else if (restored)
dfb_layer_region_flip_update( region, &old_region, DSFLIP_BLIT );
return DFB_OK;
}
static DirectResult
init_pool( FusionSHM *shm,
FusionSHMPool *pool,
FusionSHMPoolShared *shared,
const char *name,
unsigned int max_size,
bool debug )
{
DirectResult ret;
int size;
FusionWorld *world;
FusionSHMPoolNew pool_new = { .pool_id = 0 };
FusionSHMPoolAttach pool_attach = { .pool_id = 0 };
FusionEntryInfo info;
char buf[FUSION_SHM_TMPFS_PATH_NAME_LEN + 32];
D_DEBUG_AT( Fusion_SHMPool, "%s( %p, %p, %p, '%s', %d, %sdebug )\n",
__FUNCTION__, shm, pool, shared, name, max_size, debug ? "" : "non-" );
D_MAGIC_ASSERT( shm, FusionSHM );
D_MAGIC_ASSERT( shm->shared, FusionSHMShared );
D_ASSERT( name != NULL );
D_ASSERT( max_size > sizeof(shmalloc_heap) );
world = shm->world;
D_MAGIC_ASSERT( world, FusionWorld );
D_ASSERT( pool != NULL );
D_ASSERT( shared != NULL );
/* Fill out information for new pool. */
pool_new.max_size = max_size;
pool_new.max_size += BLOCKALIGN(sizeof(shmalloc_heap)) +
BLOCKALIGN( (max_size + BLOCKSIZE-1) / BLOCKSIZE * sizeof(shmalloc_info) );
/* Create the new pool. */
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_NEW, &pool_new )) {
if (errno == EINTR)
continue;
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_NEW failed!\n" );
return DR_FUSION;
}
/* Set the pool info. */
info.type = FT_SHMPOOL;
info.id = pool_new.pool_id;
snprintf( info.name, sizeof(info.name), "%s", name );
ioctl( world->fusion_fd, FUSION_ENTRY_SET_INFO, &info );
fusion_entry_add_permissions( world, FT_SHMPOOL, pool_new.pool_id, 0,
FUSION_SHMPOOL_ATTACH,
FUSION_SHMPOOL_DETACH,
0 );
/* Set pool to attach to. */
pool_attach.pool_id = pool_new.pool_id;
/* Attach to the pool. */
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_ATTACH, &pool_attach )) {
if (errno == EINTR)
continue;
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_ATTACH failed!\n" );
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_DESTROY, &shared->pool_id )) {
if (errno != EINTR) {
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_DESTROY failed!\n" );
break;
}
}
return DR_FUSION;
}
/* Generate filename. */
snprintf( buf, sizeof(buf), "%s/fusion.%d.%d", shm->shared->tmpfs,
fusion_world_index( shm->world ), pool_new.pool_id );
/* Initialize the heap. */
ret = __shmalloc_init_heap( shm, buf, pool_new.addr_base, max_size, &size );
if (ret) {
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_DESTROY, &shared->pool_id )) {
if (errno != EINTR) {
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_DESTROY failed!\n" );
break;
}
}
return ret;
}
/* Initialize local data. */
pool->attached = true;
pool->shm = shm;
pool->shared = shared;
pool->pool_id = pool_new.pool_id;
pool->filename = D_STRDUP( buf );
/* Initialize shared data. */
shared->active = true;
shared->debug = debug;
shared->shm = shm->shared;
shared->max_size = pool_new.max_size;
shared->pool_id = pool_new.pool_id;
shared->addr_base = pool_new.addr_base;
shared->heap = pool_new.addr_base;
shared->heap->pool = shared;
fusion_skirmish_init2( &shared->lock, name, world, fusion_config->secure_fusion );
D_MAGIC_SET( pool, FusionSHMPool );
D_MAGIC_SET( shared, FusionSHMPoolShared );
shared->name = SHSTRDUP( shared, name );
return DR_OK;
}
static DirectResult
join_pool( FusionSHM *shm,
FusionSHMPool *pool,
FusionSHMPoolShared *shared )
{
DirectResult ret;
FusionWorld *world;
FusionSHMPoolAttach pool_attach = { .pool_id = 0 };
char buf[FUSION_SHM_TMPFS_PATH_NAME_LEN + 32];
D_DEBUG_AT( Fusion_SHMPool, "%s( %p, %p, %p )\n", __FUNCTION__, shm, pool, shared );
D_MAGIC_ASSERT( shm, FusionSHM );
D_MAGIC_ASSERT( shm->shared, FusionSHMShared );
D_MAGIC_ASSERT( shared, FusionSHMPoolShared );
#if !DIRECT_BUILD_DEBUGS
if (shared->debug) {
D_ERROR( "Fusion/SHM: Can't join debug enabled pool with pure-release library!\n" );
return DR_UNSUPPORTED;
}
#endif
world = shm->world;
D_MAGIC_ASSERT( world, FusionWorld );
/* Set pool to attach to. */
pool_attach.pool_id = shared->pool_id;
/* Attach to the pool. */
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_ATTACH, &pool_attach )) {
if (errno == EINTR)
continue;
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_ATTACH failed!\n" );
return DR_FUSION;
}
/* Generate filename. */
snprintf( buf, sizeof(buf), "%s/fusion.%d.%d", shm->shared->tmpfs,
fusion_world_index( shm->world ), shared->pool_id );
/* Join the heap. */
ret = __shmalloc_join_heap( shm, buf, pool_attach.addr_base, shared->max_size,
!fusion_config->secure_fusion );
if (ret) {
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_DETACH, &shared->pool_id )) {
if (errno != EINTR) {
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_DETACH failed!\n" );
break;
}
}
return ret;
}
/* Initialize local data. */
pool->attached = true;
pool->shm = shm;
pool->shared = shared;
pool->pool_id = shared->pool_id;
pool->filename = D_STRDUP( buf );
D_MAGIC_SET( pool, FusionSHMPool );
return DR_OK;
}
static void
leave_pool( FusionSHM *shm,
FusionSHMPool *pool,
FusionSHMPoolShared *shared )
{
FusionWorld *world;
D_DEBUG_AT( Fusion_SHMPool, "%s( %p, %p, %p )\n", __FUNCTION__, shm, pool, shared );
D_MAGIC_ASSERT( shm, FusionSHM );
D_MAGIC_ASSERT( pool, FusionSHMPool );
D_MAGIC_ASSERT( shared, FusionSHMPoolShared );
world = shm->world;
D_MAGIC_ASSERT( world, FusionWorld );
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_DETACH, &shared->pool_id )) {
if (errno != EINTR) {
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_DETACH failed!\n" );
break;
}
}
if (munmap( shared->addr_base, shared->max_size ))
D_PERROR( "Fusion/SHM: Could not munmap shared memory file '%s'!\n", pool->filename );
pool->attached = false;
D_FREE( pool->filename );
D_MAGIC_CLEAR( pool );
}
static void
shutdown_pool( FusionSHM *shm,
FusionSHMPool *pool,
FusionSHMPoolShared *shared )
{
FusionWorld *world;
D_DEBUG_AT( Fusion_SHMPool, "%s( %p, %p, %p )\n", __FUNCTION__, shm, pool, shared );
D_MAGIC_ASSERT( shm, FusionSHM );
D_MAGIC_ASSERT( pool, FusionSHMPool );
D_MAGIC_ASSERT( shared, FusionSHMPoolShared );
world = shm->world;
D_MAGIC_ASSERT( world, FusionWorld );
SHFREE( shared, shared->name );
fusion_dbg_print_memleaks( shared );
while (ioctl( world->fusion_fd, FUSION_SHMPOOL_DESTROY, &shared->pool_id )) {
if (errno != EINTR) {
D_PERROR( "Fusion/SHM: FUSION_SHMPOOL_DESTROY failed!\n" );
break;
}
}
if (munmap( shared->addr_base, shared->max_size ))
D_PERROR( "Fusion/SHM: Could not munmap shared memory file '%s'!\n", pool->filename );
if (unlink( pool->filename ))
D_PERROR( "Fusion/SHM: Could not unlink shared memory file '%s'!\n", pool->filename );
shared->active = false;
pool->attached = false;
D_FREE( pool->filename );
D_MAGIC_CLEAR( pool );
fusion_skirmish_destroy( &shared->lock );
D_MAGIC_CLEAR( shared );
}
static void *
direct_thread_main( void *arg )
{
void *ret;
DirectThread *thread = arg;
prctl( PR_SET_NAME, thread->name, 0, 0, 0 );
pthread_setspecific( thread_key, thread );
D_DEBUG_AT( Direct_ThreadInit, "%s( %p )\n", __FUNCTION__, arg );
D_DEBUG_AT( Direct_ThreadInit, " -> starting...\n" );
D_MAGIC_ASSERT( thread, DirectThread );
pthread_cleanup_push( direct_thread_cleanup, thread );
thread->tid = direct_gettid();
D_DEBUG_AT( Direct_ThreadInit, " -> tid %d\n", thread->tid );
__D_direct_thread_call_init_handlers( thread );
/* Have all signals handled by the main thread. */
if (direct_config->thread_block_signals)
direct_signals_block_all();
/* Lock the thread mutex. */
D_DEBUG_AT( Direct_ThreadInit, " -> locking...\n" );
direct_mutex_lock( &thread->lock );
/* Indicate that our initialization has completed. */
D_ASSERT( !thread->init );
thread->init = true;
D_DEBUG_AT( Direct_ThreadInit, " -> signalling...\n" );
direct_waitqueue_signal( &thread->cond );
/* Unlock the thread mutex. */
D_DEBUG_AT( Direct_ThreadInit, " -> unlocking...\n" );
direct_mutex_unlock( &thread->lock );
if (thread->joining) {
D_DEBUG_AT( Direct_Thread, " -> Being joined before entering main routine!\n" );
return NULL;
}
D_MAGIC_ASSERT( thread, DirectThread );
/* Call main routine. */
D_DEBUG_AT( Direct_ThreadInit, " -> running...\n" );
ret = thread->main( thread, thread->arg );
D_DEBUG_AT( Direct_Thread, " -> Returning %p from '%s' (%s, %d)...\n",
ret, thread->name, direct_thread_type_name(thread->type), thread->tid );
D_MAGIC_ASSERT( thread, DirectThread );
pthread_cleanup_pop( 1 );
return ret;
}
static DirectResult
init_pool( FusionSHM *shm,
FusionSHMPool *pool,
FusionSHMPoolShared *shared,
const char *name,
unsigned int max_size,
bool debug )
{
DirectResult ret;
int size;
long page_size;
int pool_id;
unsigned int pool_max_size;
void *pool_addr_base = NULL;
FusionWorld *world;
char buf[FUSION_SHM_TMPFS_PATH_NAME_LEN + 32];
D_DEBUG_AT( Fusion_SHMPool, "%s( %p, %p, %p, '%s', %d, %sdebug )\n",
__FUNCTION__, shm, pool, shared, name, max_size, debug ? "" : "non-" );
D_MAGIC_ASSERT( shm, FusionSHM );
D_MAGIC_ASSERT( shm->shared, FusionSHMShared );
D_ASSERT( name != NULL );
D_ASSERT( max_size > sizeof(shmalloc_heap) );
world = shm->world;
D_MAGIC_ASSERT( world, FusionWorld );
D_ASSERT( pool != NULL );
D_ASSERT( shared != NULL );
page_size = direct_pagesize();
pool_id = ++world->shared->pool_ids;
pool_max_size = max_size + BLOCKALIGN(sizeof(shmalloc_heap)) +
BLOCKALIGN( (max_size + BLOCKSIZE-1) / BLOCKSIZE * sizeof(shmalloc_info) );
pool_addr_base = world->shared->pool_base;
world->shared->pool_base += ((pool_max_size + page_size - 1) & ~(page_size - 1)) + page_size;
/* Exceeded limit? */
if (world->shared->pool_base > world->shared->pool_max)
return DR_NOSHAREDMEMORY;
/* Generate filename. */
snprintf( buf, sizeof(buf), "%s/fusion.%d.%d", shm->shared->tmpfs,
fusion_world_index( world ), pool_id );
/* Initialize the heap. */
ret = __shmalloc_init_heap( shm, buf, pool_addr_base, max_size, &size );
if (ret)
return ret;
/* initialize local data. */
pool->attached = true;
pool->shm = shm;
pool->shared = shared;
pool->pool_id = pool_id;
pool->filename = D_STRDUP( buf );
/* Initialize shared data. */
shared->active = true;
shared->debug = debug;
shared->shm = shm->shared;
shared->max_size = pool_max_size;
shared->pool_id = pool_id;
shared->addr_base = pool_addr_base;
shared->heap = pool_addr_base;
shared->heap->pool = shared;
fusion_skirmish_init( &shared->lock, name, world );
D_MAGIC_SET( pool, FusionSHMPool );
D_MAGIC_SET( shared, FusionSHMPoolShared );
shared->name = SHSTRDUP( shared, name );
return DR_OK;
}
DFBResult
dfb_surface_pool_bridge_initialize( CoreDFB *core,
const SurfacePoolBridgeFuncs *funcs,
void *context,
CoreSurfacePoolBridge **ret_bridge )
{
DFBResult ret;
CoreSurfacePoolBridge *bridge;
FusionSHMPoolShared *shmpool;
D_DEBUG_AT( Core_SurfPoolBridge, "%s( %p, %p )\n", __FUNCTION__, funcs, context );
D_ASSERT( core != NULL );
D_ASSERT( funcs != NULL );
D_ASSERT( ret_bridge != NULL );
/* Check against bridge limit. */
if (bridge_count == MAX_SURFACE_POOL_BRIDGES) {
D_ERROR( "Core/SurfacePoolBridge: Maximum number of bridges (%d) reached!\n", MAX_SURFACE_POOL_BRIDGES );
return DFB_LIMITEXCEEDED;
}
D_ASSERT( bridge_funcs[bridge_count] == NULL );
shmpool = dfb_core_shmpool( core );
/* Allocate bridge structure. */
bridge = SHCALLOC( shmpool, 1, sizeof(CoreSurfacePoolBridge) );
if (!bridge)
return D_OOSHM();
/* Assign a bridge ID. */
bridge->bridge_id = bridge_count++;
/* Remember shared memory pool. */
bridge->shmpool = shmpool;
/* Set function table of the bridge. */
bridge_funcs[bridge->bridge_id] = funcs;
/* Add to global bridge list. */
bridge_array[bridge->bridge_id] = bridge;
D_MAGIC_SET( bridge, CoreSurfacePoolBridge );
ret = init_bridge( core, bridge, funcs, context );
if (ret) {
bridge_funcs[bridge->bridge_id] = NULL;
bridge_array[bridge->bridge_id] = NULL;
bridge_count--;
D_MAGIC_CLEAR( bridge );
SHFREE( shmpool, bridge );
return ret;
}
/* Insert new bridge into priority order */
insert_bridge_local( bridge );
/* Return the new bridge. */
*ret_bridge = bridge;
return DFB_OK;
}
DirectResult
fusion_shm_pool_create( FusionWorld *world,
const char *name,
unsigned int max_size,
bool debug,
FusionSHMPoolShared **ret_pool )
{
int i;
DirectResult ret;
FusionSHM *shm;
FusionSHMShared *shared;
D_MAGIC_ASSERT( world, FusionWorld );
D_MAGIC_ASSERT( world->shared, FusionWorldShared );
D_ASSERT( name != NULL );
D_ASSERT( max_size > 0 );
D_ASSERT( ret_pool != NULL );
D_DEBUG_AT( Fusion_SHMPool, "%s( %p [%d], '%s', %d, %p, %sdebug )\n", __FUNCTION__,
world, world->shared->world_index, name, max_size, ret_pool, debug ? "" : "non-" );
#if !DIRECT_BUILD_DEBUGS
debug = false;
#endif
shm = &world->shm;
D_MAGIC_ASSERT( shm, FusionSHM );
shared = shm->shared;
D_MAGIC_ASSERT( shared, FusionSHMShared );
if (max_size < 8192) {
D_ERROR( "Fusion/SHMPool: Maximum size (%d) should be 8192 at least!\n", max_size );
return DR_INVARG;
}
ret = fusion_skirmish_prevail( &shared->lock );
if (ret)
goto error;
if (shared->num_pools == FUSION_SHM_MAX_POOLS) {
D_ERROR( "Fusion/SHMPool: Maximum number of pools (%d) already reached!\n", FUSION_SHM_MAX_POOLS );
ret = DR_LIMITEXCEEDED;
goto error;
}
for (i=0; i<FUSION_SHM_MAX_POOLS; i++) {
if (!shared->pools[i].active)
break;
D_MAGIC_ASSERT( &shared->pools[i], FusionSHMPoolShared );
D_MAGIC_ASSUME( &shm->pools[i], FusionSHMPool );
}
D_ASSERT( i < FUSION_SHM_MAX_POOLS );
D_DEBUG_AT( Fusion_SHMPool, " -> index %d\n", i );
memset( &shm->pools[i], 0, sizeof(FusionSHMPool) );
memset( &shared->pools[i], 0, sizeof(FusionSHMPoolShared) );
shared->pools[i].index = i;
ret = init_pool( shm, &shm->pools[i], &shared->pools[i], name, max_size, debug );
if (ret)
goto error;
shared->num_pools++;
fusion_skirmish_dismiss( &shared->lock );
*ret_pool = &shared->pools[i];
D_DEBUG_AT( Fusion_SHMPool, " -> %p\n", *ret_pool );
return DR_OK;
error:
fusion_skirmish_dismiss( &shared->lock );
return ret;
}
DFBResult
dfb_surface_pool_bridges_transfer( CoreSurfaceBuffer *buffer,
CoreSurfaceAllocation *from,
CoreSurfaceAllocation *to,
const DFBRectangle *rects,
unsigned int num_rects )
{
DFBResult ret;
int i;
DFBRectangle rect;
CoreSurfacePoolBridge *bridge = NULL;
const SurfacePoolBridgeFuncs *funcs;
CoreSurfacePoolTransfer *transfer;
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
CORE_SURFACE_ALLOCATION_ASSERT( from );
CORE_SURFACE_ALLOCATION_ASSERT( to );
D_ASSERT( rects != NULL || num_rects == 0 );
D_ASSERT( num_rects > 0 || rects == NULL );
D_DEBUG_AT( Core_SurfPoolBridge, "%s( %p [%dx%d %s], %p -> %p, %d rects )\n", __FUNCTION__,
buffer, buffer->config.size.w, buffer->config.size.h,
dfb_pixelformat_name( buffer->format ), from, to, num_rects );
if (!rects) {
rect.x = rect.y = 0;
rect.w = buffer->config.size.w;
rect.h = buffer->config.size.h;
rects = ▭
num_rects = 1;
}
for (i=0; i<bridge_count; i++) {
D_ASSERT( bridge_order[i] >= 0 );
D_ASSERT( bridge_order[i] < bridge_count );
bridge = bridge_array[bridge_order[i]];
D_MAGIC_ASSERT( bridge, CoreSurfacePoolBridge );
funcs = get_funcs( bridge );
D_ASSERT( funcs->CheckTransfer != NULL );
ret = funcs->CheckTransfer( bridge, bridge->data, get_local(bridge), buffer, from, to );
if (ret)
bridge = NULL;
else
break;
}
if (!bridge)
return DFB_UNSUPPORTED;
D_DEBUG_AT( Core_SurfPoolBridge, " -> using '%s'\n", bridge->desc.name );
ret = allocate_transfer( bridge, buffer, from, to, rects, num_rects, &transfer );
if (ret)
return ret;
D_ASSERT( funcs->StartTransfer != NULL );
D_DEBUG_AT( Core_SurfPoolBridge, " -> start...\n" );
ret = funcs->StartTransfer( bridge, bridge->data, get_local(bridge), transfer, transfer->data );
if (ret)
D_DERROR( ret, "Core/SurfacePoolBridge: Starting transfer via '%s' failed!\n", bridge->desc.name );
else if (funcs->FinishTransfer) {
D_DEBUG_AT( Core_SurfPoolBridge, " -> finish...\n" );
ret = funcs->FinishTransfer( bridge, bridge->data, get_local(bridge), transfer, transfer->data );
if (ret)
D_DERROR( ret, "Core/SurfacePoolBridge: Finishing transfer via '%s' failed!\n", bridge->desc.name );
}
D_DEBUG_AT( Core_SurfPoolBridge, " => %s\n", DirectResultString(ret) );
deallocate_transfer( transfer );
return ret;
}
DFBResult
dfb_layer_region_flip_update( CoreLayerRegion *region,
const DFBRegion *update,
DFBSurfaceFlipFlags flags )
{
DFBResult ret = DFB_OK;
CoreLayer *layer;
CoreLayerContext *context;
CoreSurface *surface;
SurfaceBuffer *buffer;
DisplayLayerFuncs *funcs;
if (update)
D_DEBUG_AT( Core_Layers,
"dfb_layer_region_flip_update( %p, %p, 0x%08x ) <- [%d, %d - %dx%d]\n",
region, update, flags, DFB_RECTANGLE_VALS_FROM_REGION( update ) );
else
D_DEBUG_AT( Core_Layers,
"dfb_layer_region_flip_update( %p, %p, 0x%08x )\n", region, update, flags );
D_ASSERT( region != NULL );
D_ASSERT( region->context != NULL );
/* Lock the region. */
if (dfb_layer_region_lock( region ))
return DFB_FUSION;
D_ASSUME( region->surface != NULL );
/* Check for NULL surface. */
if (!region->surface) {
D_DEBUG_AT( Core_Layers, " -> No surface => no update!\n" );
dfb_layer_region_unlock( region );
return DFB_UNSUPPORTED;
}
context = region->context;
surface = region->surface;
buffer = surface->back_buffer;
layer = dfb_layer_at( context->layer_id );
D_ASSERT( layer->funcs != NULL );
funcs = layer->funcs;
/* Depending on the buffer mode... */
switch (region->config.buffermode) {
case DLBM_TRIPLE:
case DLBM_BACKVIDEO:
/* Check if simply swapping the buffers is possible... */
if (!(flags & DSFLIP_BLIT) &&
(!update || (update->x1 == 0 &&
update->y1 == 0 &&
update->x2 == surface->width - 1 &&
update->y2 == surface->height - 1)))
{
D_DEBUG_AT( Core_Layers, " -> Going to swap buffers...\n" );
/* Use the driver's routine if the region is realized. */
if (D_FLAGS_IS_SET( region->state, CLRSF_REALIZED )) {
D_ASSUME( funcs->FlipRegion != NULL );
D_DEBUG_AT( Core_Layers, " -> Waiting for pending writes...\n" );
if (buffer->video.access & VAF_HARDWARE_WRITE) {
dfb_gfxcard_wait_serial( &buffer->video.serial );
buffer->video.access &= ~VAF_HARDWARE_WRITE;
}
D_DEBUG_AT( Core_Layers, " -> Flipping region using driver...\n" );
if (funcs->FlipRegion)
ret = funcs->FlipRegion( layer,
layer->driver_data,
layer->layer_data,
region->region_data,
surface, flags );
}
else {
D_DEBUG_AT( Core_Layers, " -> Flipping region not using driver...\n" );
/* Just do the hardware independent work. */
dfb_surface_flip_buffers( surface, false );
}
break;
}
/* fall through */
case DLBM_BACKSYSTEM:
D_DEBUG_AT( Core_Layers, " -> Going to copy portion...\n" );
if ((flags & DSFLIP_WAITFORSYNC) == DSFLIP_WAITFORSYNC) {
D_DEBUG_AT( Core_Layers, " -> Waiting for VSync...\n" );
dfb_layer_wait_vsync( layer );
}
D_DEBUG_AT( Core_Layers, " -> Copying content from back to front buffer...\n" );
/* ...or copy updated contents from back to front buffer. */
dfb_back_to_front_copy( surface, update );
if ((flags & DSFLIP_WAITFORSYNC) == DSFLIP_WAIT) {
D_DEBUG_AT( Core_Layers, " -> Waiting for VSync...\n" );
dfb_layer_wait_vsync( layer );
}
/* fall through */
case DLBM_FRONTONLY:
/* Tell the driver about the update if the region is realized. */
if (funcs->UpdateRegion && D_FLAGS_IS_SET( region->state, CLRSF_REALIZED )) {
D_DEBUG_AT( Core_Layers, " -> Notifying driver about updated content...\n" );
ret = funcs->UpdateRegion( layer,
layer->driver_data,
layer->layer_data,
region->region_data,
surface, update );
}
break;
default:
D_BUG("unknown buffer mode");
ret = DFB_BUG;
}
D_DEBUG_AT( Core_Layers, " -> done.\n" );
/* Unlock the region. */
dfb_layer_region_unlock( region );
return ret;
}
int drbd_md_sync_page_io(struct drbd_conf *mdev, struct drbd_backing_dev *bdev,
sector_t sector, int rw)
{
int logical_block_size, mask, ok;
int offset = 0;
struct page *iop = mdev->md_io_page;
D_ASSERT(mutex_is_locked(&mdev->md_io_mutex));
BUG_ON(!bdev->md_bdev);
logical_block_size = bdev_logical_block_size(bdev->md_bdev);
if (logical_block_size == 0)
logical_block_size = MD_SECTOR_SIZE;
/* in case logical_block_size != 512 [ s390 only? ] */
if (logical_block_size != MD_SECTOR_SIZE) {
mask = (logical_block_size / MD_SECTOR_SIZE) - 1;
D_ASSERT(mask == 1 || mask == 3 || mask == 7);
D_ASSERT(logical_block_size == (mask+1) * MD_SECTOR_SIZE);
offset = sector & mask;
sector = sector & ~mask;
iop = mdev->md_io_tmpp;
if (rw & WRITE) {
/* these are GFP_KERNEL pages, pre-allocated
* on device initialization */
void *p = page_address(mdev->md_io_page);
void *hp = page_address(mdev->md_io_tmpp);
ok = _drbd_md_sync_page_io(mdev, bdev, iop, sector,
READ, logical_block_size);
if (unlikely(!ok)) {
dev_err(DEV, "drbd_md_sync_page_io(,%llus,"
"READ [logical_block_size!=512]) failed!\n",
(unsigned long long)sector);
return 0;
}
memcpy(hp + offset*MD_SECTOR_SIZE, p, MD_SECTOR_SIZE);
}
}
if (sector < drbd_md_first_sector(bdev) ||
sector > drbd_md_last_sector(bdev))
dev_alert(DEV, "%s [%d]:%s(,%llus,%s) out of range md access!\n",
current->comm, current->pid, __func__,
(unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ");
ok = _drbd_md_sync_page_io(mdev, bdev, iop, sector, rw, logical_block_size);
if (unlikely(!ok)) {
dev_err(DEV, "drbd_md_sync_page_io(,%llus,%s) failed!\n",
(unsigned long long)sector, (rw & WRITE) ? "WRITE" : "READ");
return 0;
}
if (logical_block_size != MD_SECTOR_SIZE && !(rw & WRITE)) {
void *p = page_address(mdev->md_io_page);
void *hp = page_address(mdev->md_io_tmpp);
memcpy(p, hp + offset*MD_SECTOR_SIZE, MD_SECTOR_SIZE);
}
return ok;
}
DFBResult
dfb_layer_region_set_configuration( CoreLayerRegion *region,
CoreLayerRegionConfig *config,
CoreLayerRegionConfigFlags flags )
{
DFBResult ret;
CoreLayer *layer;
DisplayLayerFuncs *funcs;
CoreLayerRegionConfig new_config;
D_ASSERT( region != NULL );
D_ASSERT( region->context != NULL );
D_ASSERT( config != NULL );
D_ASSERT( config->buffermode != DLBM_WINDOWS );
D_ASSERT( (flags == CLRCF_ALL) || (region->state & CLRSF_CONFIGURED) );
D_ASSUME( flags != CLRCF_NONE );
D_ASSUME( ! (flags & ~CLRCF_ALL) );
layer = dfb_layer_at( region->context->layer_id );
D_ASSERT( layer != NULL );
D_ASSERT( layer->funcs != NULL );
D_ASSERT( layer->funcs->TestRegion != NULL );
funcs = layer->funcs;
/* Lock the region. */
if (dfb_layer_region_lock( region ))
return DFB_FUSION;
/* Full configuration supplied? */
if (flags == CLRCF_ALL) {
new_config = *config;
}
else {
/* Use the current configuration. */
new_config = region->config;
/* Update each modified entry. */
if (flags & CLRCF_WIDTH)
new_config.width = config->width;
if (flags & CLRCF_HEIGHT)
new_config.height = config->height;
if (flags & CLRCF_FORMAT)
new_config.format = config->format;
if (flags & CLRCF_SURFACE_CAPS)
new_config.surface_caps = config->surface_caps;
if (flags & CLRCF_BUFFERMODE)
new_config.buffermode = config->buffermode;
if (flags & CLRCF_OPTIONS)
new_config.options = config->options;
if (flags & CLRCF_SOURCE_ID)
new_config.source_id = config->source_id;
if (flags & CLRCF_SOURCE)
new_config.source = config->source;
if (flags & CLRCF_DEST)
new_config.dest = config->dest;
if (flags & CLRCF_OPACITY)
new_config.opacity = config->opacity;
if (flags & CLRCF_ALPHA_RAMP) {
new_config.alpha_ramp[0] = config->alpha_ramp[0];
new_config.alpha_ramp[1] = config->alpha_ramp[1];
new_config.alpha_ramp[2] = config->alpha_ramp[2];
new_config.alpha_ramp[3] = config->alpha_ramp[3];
}
if (flags & CLRCF_SRCKEY)
new_config.src_key = config->src_key;
if (flags & CLRCF_DSTKEY)
new_config.dst_key = config->dst_key;
if (flags & CLRCF_PARITY)
new_config.parity = config->parity;
}
/* Check if the new configuration is supported. */
ret = funcs->TestRegion( layer, layer->driver_data, layer->layer_data,
&new_config, NULL );
if (ret) {
dfb_layer_region_unlock( region );
return ret;
}
/* Propagate new configuration to the driver if the region is realized. */
if (D_FLAGS_IS_SET( region->state, CLRSF_REALIZED )) {
ret = set_region( region, &new_config, flags, region->surface );
if (ret) {
dfb_layer_region_unlock( region );
return ret;
}
}
/* Update the region's current configuration. */
region->config = new_config;
/* Update the region's state. */
D_FLAGS_SET( region->state, CLRSF_CONFIGURED );
/* Unlock the region. */
dfb_layer_region_unlock( region );
return DFB_OK;
}
/**
* drbd_al_read_log() - Restores the activity log from its on disk representation.
* @mdev: DRBD device.
* @bdev: Block device to read form.
*
* Returns 1 on success, returns 0 when reading the log failed due to IO errors.
*/
int drbd_al_read_log(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
{
struct al_transaction *buffer;
int i;
int rv;
int mx;
int active_extents = 0;
int transactions = 0;
int found_valid = 0;
int from = 0;
int to = 0;
u32 from_tnr = 0;
u32 to_tnr = 0;
u32 cnr;
mx = div_ceil(mdev->act_log->nr_elements, AL_EXTENTS_PT);
/* lock out all other meta data io for now,
* and make sure the page is mapped.
*/
mutex_lock(&mdev->md_io_mutex);
buffer = page_address(mdev->md_io_page);
/* Find the valid transaction in the log */
for (i = 0; i <= mx; i++) {
rv = drbd_al_read_tr(mdev, bdev, buffer, i);
if (rv == 0)
continue;
if (rv == -1) {
mutex_unlock(&mdev->md_io_mutex);
return 0;
}
cnr = be32_to_cpu(buffer->tr_number);
if (++found_valid == 1) {
from = i;
to = i;
from_tnr = cnr;
to_tnr = cnr;
continue;
}
if ((int)cnr - (int)from_tnr < 0) {
D_ASSERT(from_tnr - cnr + i - from == mx+1);
from = i;
from_tnr = cnr;
}
if ((int)cnr - (int)to_tnr > 0) {
D_ASSERT(cnr - to_tnr == i - to);
to = i;
to_tnr = cnr;
}
}
if (!found_valid) {
dev_warn(DEV, "No usable activity log found.\n");
mutex_unlock(&mdev->md_io_mutex);
return 1;
}
/* Read the valid transactions.
* dev_info(DEV, "Reading from %d to %d.\n",from,to); */
i = from;
while (1) {
int j, pos;
unsigned int extent_nr;
unsigned int trn;
rv = drbd_al_read_tr(mdev, bdev, buffer, i);
ERR_IF(rv == 0) goto cancel;
if (rv == -1) {
mutex_unlock(&mdev->md_io_mutex);
return 0;
}
trn = be32_to_cpu(buffer->tr_number);
spin_lock_irq(&mdev->al_lock);
/* This loop runs backwards because in the cyclic
elements there might be an old version of the
updated element (in slot 0). So the element in slot 0
can overwrite old versions. */
for (j = AL_EXTENTS_PT; j >= 0; j--) {
pos = be32_to_cpu(buffer->updates[j].pos);
extent_nr = be32_to_cpu(buffer->updates[j].extent);
if (extent_nr == LC_FREE)
continue;
lc_set(mdev->act_log, extent_nr, pos);
active_extents++;
}
spin_unlock_irq(&mdev->al_lock);
transactions++;
cancel:
if (i == to)
break;
i++;
if (i > mx)
i = 0;
}
mdev->al_tr_number = to_tnr+1;
mdev->al_tr_pos = to;
if (++mdev->al_tr_pos >
div_ceil(mdev->act_log->nr_elements, AL_EXTENTS_PT))
mdev->al_tr_pos = 0;
/* ok, we are done with it */
mutex_unlock(&mdev->md_io_mutex);
dev_info(DEV, "Found %d transactions (%d active extents) in activity log.\n",
transactions, active_extents);
return 1;
}
static void
stab_df_hkey_gen(struct btr_instance *tins, daos_iov_t *key_iov, void *hkey)
{
D_ASSERT(key_iov->iov_len == sizeof(int));
memcpy(hkey, key_iov->iov_buf, key_iov->iov_len);
}