From 8484091b29b9f4a7f0e305fa4e1085a66753393e Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Wed, 27 Jun 2012 09:37:05 +0300 Subject: video: tegra: host: Serialize 2D jobs Force serialization of 2D jobs by inserting a host wait for previous maximum at the beginning of the job. Bug 1002293 Change-Id: I667ad4565cc32186ea7ccf16845c68d1b1bbdf78 Signed-off-by: Terje Bergstrom Reviewed-on: http://git-master/r/111475 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Donghan Ryu Reviewed-by: Arto Merilainen Reviewed-by: Daniel Parker Reviewed-by: Mayuresh Kulkarni Reviewed-by: Juha Tukkinen GVS: Gerrit_Virtual_Submit Reviewed-by: Francis Hart --- drivers/video/tegra/host/host1x/host1x_channel.c | 12 ++++++++++++ drivers/video/tegra/host/t20/t20.c | 1 + drivers/video/tegra/host/t30/t30.c | 1 + 3 files changed, 14 insertions(+) (limited to 'drivers/video') diff --git a/drivers/video/tegra/host/host1x/host1x_channel.c b/drivers/video/tegra/host/host1x/host1x_channel.c index 98af5758df56..9e9fc25dc966 100644 --- a/drivers/video/tegra/host/host1x/host1x_channel.c +++ b/drivers/video/tegra/host/host1x/host1x_channel.c @@ -251,6 +251,18 @@ static int host1x_channel_submit(struct nvhost_job *job) goto error; } + if (ch->dev->serialize) { + /* Force serialization by inserting a host wait for the + * previous job to finish before this one can commence. */ + nvhost_cdma_push(&ch->cdma, + nvhost_opcode_setclass(NV_HOST1X_CLASS_ID, + host1x_uclass_wait_syncpt_r(), + 1), + nvhost_class_host_wait_syncpt(job->syncpt_id, + nvhost_syncpt_read_max(sp, + job->syncpt_id))); + } + submit_ctxsave(job, ctxsave_waiter, ch->cur_ctx); submit_ctxrestore(job); ch->cur_ctx = job->hwctx; diff --git a/drivers/video/tegra/host/t20/t20.c b/drivers/video/tegra/host/t20/t20.c index 00c1e2825920..71ed7334e714 100644 --- a/drivers/video/tegra/host/t20/t20.c +++ b/drivers/video/tegra/host/t20/t20.c @@ -140,6 +140,7 @@ static struct nvhost_device tegra_gr2d01_device = { NVHOST_MODULE_NO_POWERGATE_IDS, .clockgate_delay = 0, .moduleid = NVHOST_MODULE_NONE, + .serialize = true, }; static struct resource isp_resources_t20[] = { diff --git a/drivers/video/tegra/host/t30/t30.c b/drivers/video/tegra/host/t30/t30.c index 88a489244b48..4d042a985fe1 100644 --- a/drivers/video/tegra/host/t30/t30.c +++ b/drivers/video/tegra/host/t30/t30.c @@ -148,6 +148,7 @@ static struct nvhost_device tegra_gr2d02_device = { NVHOST_MODULE_NO_POWERGATE_IDS, .clockgate_delay = 0, .moduleid = NVHOST_MODULE_NONE, + .serialize = true, }; static struct resource isp_resources_t20[] = { -- cgit v1.2.3