From 460951ed092aad787bacd0ebb0646b799d3463a1 Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Wed, 13 Sep 2017 05:41:52 -0700 Subject: gpu: nvgpu: fix TSG enable sequence Due to a h/w bug in Maxwell and Pascal we first need to enable all channels with NEXT and CTX_RELOAD set in a TSG, and then rest of the channels should be enabled Add this sequence to gk20a_tsg_enable() Add new APIs to enable/disable scheduling of TSG runlist gk20a_fifo_enable_tsg_sched() gk20a_fifo_disble_tsg_sched() Add new APIs to check if channel has NEXT or CTX_RELOAD set gk20a_fifo_channel_status_is_next() gk20a_fifo_channel_status_is_ctx_reload() Bug 1739362 Change-Id: I4891cbd7f22ebc1e0bf32c52801002cdc259dbe1 Signed-off-by: Deepak Nibade Reviewed-on: https://git-master.nvidia.com/r/1560636 Reviewed-by: svc-mobile-coverity GVS: Gerrit_Virtual_Submit Reviewed-by: Seshendra Gadagottu Reviewed-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/fifo_gk20a.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a/fifo_gk20a.h') diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h index d5b686f0..70c70931 100644 --- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h @@ -248,6 +248,9 @@ int gk20a_fifo_disable_engine_activity(struct gk20a *g, bool wait_for_idle); int gk20a_fifo_disable_all_engine_activity(struct gk20a *g, bool wait_for_idle); +void gk20a_fifo_enable_tsg_sched(struct gk20a *g, struct tsg_gk20a *tsg); +void gk20a_fifo_disable_tsg_sched(struct gk20a *g, struct tsg_gk20a *tsg); + u32 gk20a_fifo_engines_on_ch(struct gk20a *g, u32 chid); int gk20a_fifo_reschedule_runlist(struct gk20a *g, u32 runlist_id); @@ -362,6 +365,9 @@ const char *gk20a_decode_pbdma_chan_eng_ctx_status(u32 index); void gk20a_fifo_enable_channel(struct channel_gk20a *ch); void gk20a_fifo_disable_channel(struct channel_gk20a *ch); +bool gk20a_fifo_channel_status_is_next(struct gk20a *g, u32 chid); +bool gk20a_fifo_channel_status_is_ctx_reload(struct gk20a *g, u32 chid); + struct channel_gk20a *gk20a_refch_from_inst_ptr(struct gk20a *g, u64 inst_ptr); void gk20a_fifo_channel_unbind(struct channel_gk20a *ch_gk20a); -- cgit v1.2.2