diff options
Diffstat (limited to 'drivers/gpu/host1x/hw/cdma_hw.c')
| -rw-r--r-- | drivers/gpu/host1x/hw/cdma_hw.c | 46 |
1 files changed, 26 insertions, 20 deletions
diff --git a/drivers/gpu/host1x/hw/cdma_hw.c b/drivers/gpu/host1x/hw/cdma_hw.c index ce320534cbed..5d61088db2bb 100644 --- a/drivers/gpu/host1x/hw/cdma_hw.c +++ b/drivers/gpu/host1x/hw/cdma_hw.c @@ -39,8 +39,6 @@ static void push_buffer_init(struct push_buffer *pb) static void cdma_timeout_cpu_incr(struct host1x_cdma *cdma, u32 getptr, u32 syncpt_incrs, u32 syncval, u32 nr_slots) { - struct host1x *host1x = cdma_to_host1x(cdma); - struct push_buffer *pb = &cdma->push_buffer; unsigned int i; for (i = 0; i < syncpt_incrs; i++) @@ -48,18 +46,6 @@ static void cdma_timeout_cpu_incr(struct host1x_cdma *cdma, u32 getptr, /* after CPU incr, ensure shadow is up to date */ host1x_syncpt_load(cdma->timeout.syncpt); - - /* NOP all the PB slots */ - while (nr_slots--) { - u32 *p = (u32 *)(pb->mapped + getptr); - *(p++) = HOST1X_OPCODE_NOP; - *(p++) = HOST1X_OPCODE_NOP; - dev_dbg(host1x->dev, "%s: NOP at %pad+%#x\n", __func__, - &pb->dma, getptr); - getptr = (getptr + 8) & (pb->size - 1); - } - - wmb(); } /* @@ -68,20 +54,31 @@ static void cdma_timeout_cpu_incr(struct host1x_cdma *cdma, u32 getptr, static void cdma_start(struct host1x_cdma *cdma) { struct host1x_channel *ch = cdma_to_channel(cdma); + u64 start, end; if (cdma->running) return; cdma->last_pos = cdma->push_buffer.pos; + start = cdma->push_buffer.dma; + end = cdma->push_buffer.size + 4; host1x_ch_writel(ch, HOST1X_CHANNEL_DMACTRL_DMASTOP, HOST1X_CHANNEL_DMACTRL); /* set base, put and end pointer */ - host1x_ch_writel(ch, cdma->push_buffer.dma, HOST1X_CHANNEL_DMASTART); + host1x_ch_writel(ch, lower_32_bits(start), HOST1X_CHANNEL_DMASTART); +#if HOST1X_HW >= 6 + host1x_ch_writel(ch, upper_32_bits(start), HOST1X_CHANNEL_DMASTART_HI); +#endif host1x_ch_writel(ch, cdma->push_buffer.pos, HOST1X_CHANNEL_DMAPUT); - host1x_ch_writel(ch, cdma->push_buffer.dma + cdma->push_buffer.size + 4, - HOST1X_CHANNEL_DMAEND); +#if HOST1X_HW >= 6 + host1x_ch_writel(ch, 0, HOST1X_CHANNEL_DMAPUT_HI); +#endif + host1x_ch_writel(ch, lower_32_bits(end), HOST1X_CHANNEL_DMAEND); +#if HOST1X_HW >= 6 + host1x_ch_writel(ch, upper_32_bits(end), HOST1X_CHANNEL_DMAEND_HI); +#endif /* reset GET */ host1x_ch_writel(ch, HOST1X_CHANNEL_DMACTRL_DMASTOP | @@ -104,6 +101,7 @@ static void cdma_timeout_restart(struct host1x_cdma *cdma, u32 getptr) { struct host1x *host1x = cdma_to_host1x(cdma); struct host1x_channel *ch = cdma_to_channel(cdma); + u64 start, end; if (cdma->running) return; @@ -113,10 +111,18 @@ static void cdma_timeout_restart(struct host1x_cdma *cdma, u32 getptr) host1x_ch_writel(ch, HOST1X_CHANNEL_DMACTRL_DMASTOP, HOST1X_CHANNEL_DMACTRL); + start = cdma->push_buffer.dma; + end = cdma->push_buffer.size + 4; + /* set base, end pointer (all of memory) */ - host1x_ch_writel(ch, cdma->push_buffer.dma, HOST1X_CHANNEL_DMASTART); - host1x_ch_writel(ch, cdma->push_buffer.dma + cdma->push_buffer.size, - HOST1X_CHANNEL_DMAEND); + host1x_ch_writel(ch, lower_32_bits(start), HOST1X_CHANNEL_DMASTART); +#if HOST1X_HW >= 6 + host1x_ch_writel(ch, upper_32_bits(start), HOST1X_CHANNEL_DMASTART_HI); +#endif + host1x_ch_writel(ch, lower_32_bits(end), HOST1X_CHANNEL_DMAEND); +#if HOST1X_HW >= 6 + host1x_ch_writel(ch, upper_32_bits(end), HOST1X_CHANNEL_DMAEND_HI); +#endif /* set GET, by loading the value in PUT (then reset GET) */ host1x_ch_writel(ch, getptr, HOST1X_CHANNEL_DMAPUT); |