diff options
author | Aingara Paramakuru <aparamakuru@nvidia.com> | 2016-02-22 12:35:49 -0500 |
---|---|---|
committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2016-03-15 19:23:44 -0400 |
commit | 2a58d3c27b45ca9d0d9dc2136377b7a41b9ed82d (patch) | |
tree | 9d7464bfd0eea8e4b65f591996db59a98f4070e2 /drivers/gpu/nvgpu/gk20a/tsg_gk20a.h | |
parent | f07a046a52e7a8074bd1572a12ac65747d3f827d (diff) |
gpu: nvgpu: improve channel interleave support
Previously, only "high" priority bare channels were interleaved
between all other bare channels and TSGs. This patch decouples
priority from interleaving and introduces 3 levels for interleaving
a bare channel or TSG: high, medium, and low. The levels define
the number of times a channel or TSG will appear on a runlist (see
nvgpu.h for details).
By default, all bare channels and TSGs are set to interleave level
low. Userspace can then request the interleave level to be increased
via the CHANNEL_SET_RUNLIST_INTERLEAVE ioctl (TSG-specific ioctl will
be added later).
As timeslice settings will soon be coming from userspace, the default
timeslice for "high" priority channels has been restored.
JIRA VFND-1302
Bug 1729664
Change-Id: I178bc1cecda23f5002fec6d791e6dcaedfa05c0c
Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-on: http://git-master/r/1014962
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/tsg_gk20a.h')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/tsg_gk20a.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h index bcc4d0c4..7e0a75d1 100644 --- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h | |||
@@ -49,6 +49,8 @@ struct tsg_gk20a { | |||
49 | struct gr_ctx_desc *tsg_gr_ctx; | 49 | struct gr_ctx_desc *tsg_gr_ctx; |
50 | 50 | ||
51 | struct vm_gk20a *vm; | 51 | struct vm_gk20a *vm; |
52 | |||
53 | u32 interleave_level; | ||
52 | }; | 54 | }; |
53 | 55 | ||
54 | int gk20a_enable_tsg(struct tsg_gk20a *tsg); | 56 | int gk20a_enable_tsg(struct tsg_gk20a *tsg); |