motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 00:33:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

PPC: dbdma: Move processing to io

Browse source 
Soon we will introduce intermediate processing pauses which will
allow the bottom half to restart a DMA request that couldn't be
fulfilled yet.

For that to work, move the processing variable into the io struct
which is what DMA providers work with.

While touching it, also change it into a bool

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-06-30 02:47:20 +02:00
parent 4aa3510f6f
commit 03ee3b1e58
2 changed files with 8 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

10
hw/misc/macio/mac_dbdma.c
View file

@ -275,7 +275,9 @@ static void dbdma_end(DBDMA_io *io)
conditional_branch(ch);
wait:
ch->processing = 0;
/* Indicate that we're ready for a new DMA round */
ch->io.processing = false;
if ((ch->regs[DBDMA_STATUS] & RUN) &&
(ch->regs[DBDMA_STATUS] & ACTIVE))
channel_run(ch);
@ -301,7 +303,7 @@ static void start_output(DBDMA_channel *ch, int key, uint32_t addr,
ch->io.is_last = is_last;
ch->io.dma_end = dbdma_end;
ch->io.is_dma_out = 1;
ch->processing = 1;
ch->io.processing = true;
if (ch->rw) {
ch->rw(&ch->io);
}
@ -327,7 +329,7 @@ static void start_input(DBDMA_channel *ch, int key, uint32_t addr,
ch->io.is_last = is_last;
ch->io.dma_end = dbdma_end;
ch->io.is_dma_out = 0;
ch->processing = 1;
ch->io.processing = true;
if (ch->rw) {
ch->rw(&ch->io);
}
@ -525,7 +527,7 @@ static void DBDMA_run(DBDMAState *s)
for (channel = 0; channel < DBDMA_CHANNELS; channel++) {
DBDMA_channel *ch = &s->channels[channel];
uint32_t status = ch->regs[DBDMA_STATUS];
if (!ch->processing && (status & RUN) && (status & ACTIVE)) {
if (!ch->io.processing && (status & RUN) && (status & ACTIVE)) {
channel_run(ch);
}
}