gpu: host1x: Add channel support
Add support for host1x client modules, and host1x channels to submit
work to the clients.
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index b967f6e..4e522c5 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -29,6 +29,7 @@
#include "dev.h"
#include "intr.h"
+#include "channel.h"
#include "hw/host1x01.h"
void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r)
@@ -45,6 +46,16 @@
return readl(sync_regs + r);
}
+void host1x_ch_writel(struct host1x_channel *ch, u32 v, u32 r)
+{
+ writel(v, ch->regs + r);
+}
+
+u32 host1x_ch_readl(struct host1x_channel *ch, u32 r)
+{
+ return readl(ch->regs + r);
+}
+
static const struct host1x_info host1x01_info = {
.nb_channels = 8,
.nb_pts = 32,
@@ -112,6 +123,12 @@
return err;
}
+ err = host1x_channel_list_init(host);
+ if (err) {
+ dev_err(&pdev->dev, "failed to initialize channel list\n");
+ return err;
+ }
+
err = clk_prepare_enable(host->clk);
if (err < 0) {
dev_err(&pdev->dev, "failed to enable clock\n");