From c4e4f2567d4503c939eff9777273bc6ab0902db8 Mon Sep 17 00:00:00 2001 From: Aingara Paramakuru Date: Fri, 8 Apr 2016 18:07:08 -0400 Subject: gpu: nvgpu: add TSG interleave support Add support for changing a TSG's runlist interleave level. JIRA VFND-1497 Bug 1749744 Change-Id: I3cf3ebc2334f83b1bfb6b3230fae2ca73c75c239 Signed-off-by: Aingara Paramakuru Reviewed-on: http://git-master/r/1122677 Reviewed-by: Terje Bergstrom Tested-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/tsg_gk20a.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a') diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c index 7b98c80f..0eaa23ab 100644 --- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c @@ -325,6 +325,26 @@ static int gk20a_tsg_event_id_ctrl(struct gk20a *g, struct tsg_gk20a *tsg, return err; } +static int gk20a_tsg_set_runlist_interleave(struct tsg_gk20a *tsg, u32 level) +{ + struct gk20a *g = tsg->g; + int ret; + + switch (level) { + case NVGPU_RUNLIST_INTERLEAVE_LEVEL_LOW: + case NVGPU_RUNLIST_INTERLEAVE_LEVEL_MEDIUM: + case NVGPU_RUNLIST_INTERLEAVE_LEVEL_HIGH: + ret = g->ops.fifo.set_runlist_interleave(g, tsg->tsgid, + true, 0, level); + break; + default: + ret = -EINVAL; + break; + } + + return ret ? ret : g->ops.fifo.update_runlist(g, 0, ~0, true, true); +} + static void release_used_tsg(struct fifo_gk20a *f, struct tsg_gk20a *tsg) { mutex_lock(&f->tsg_inuse_mutex); @@ -520,6 +540,20 @@ long gk20a_tsg_dev_ioctl(struct file *filp, unsigned int cmd, break; } + case NVGPU_IOCTL_TSG_SET_RUNLIST_INTERLEAVE: + { + err = gk20a_busy(g->dev); + if (err) { + gk20a_err(dev_from_gk20a(g), + "failed to host gk20a for ioctl cmd: 0x%x", cmd); + return err; + } + err = gk20a_tsg_set_runlist_interleave(tsg, + ((struct nvgpu_runlist_interleave_args *)buf)->level); + gk20a_idle(g->dev); + break; + } + default: gk20a_err(dev_from_gk20a(g), "unrecognized tsg gpu ioctl cmd: 0x%x", -- cgit v1.2.2