gpu: host1x: Resize channel register region on Tegra186 and later (b7c61d51) · Commits · 戴 / test

The register region allocated per channel was decreased from 16384 bytes to 256 bytes on Tegra186 and later. Resize the region to make sure every channel (instead of only the first) is properly programmed. Suggested-by:

Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by:

Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by:

Thierry Reding <treding@nvidia.com>

drivers/gpu/host1x/hw/channel_hw.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -26,7 +26,6 @@
		#include "../intr.h"
		#include "../job.h"

		#define HOST1X_CHANNEL_SIZE 16384
		#define TRACE_MAX_LENGTH 128U

		static void trace_write_gather(struct host1x_cdma cdma, struct host1x_bo bo,
		@@ -203,7 +202,11 @@ static void enable_gather_filter(struct host1x *host,
		static int host1x_channel_init(struct host1x_channel ch, struct host1x dev,
		unsigned int index)
		{
		ch->regs = dev->regs + index * HOST1X_CHANNEL_SIZE;
		#if HOST1X_HW < 6
		ch->regs = dev->regs + index * 0x4000;
		#else
		ch->regs = dev->regs + index * 0x100;
		#endif
		enable_gather_filter(dev, ch);
		return 0;
		}

Admin message