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gpu: nvgpu: cde: Increase the number of cde contexts

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Allocate four channels for cde jobs.

Bug 1546619

Change-Id: Id2637f71426f42c2d553d38cd74873b9f0628b55
Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com>
Reviewed-on: http://git-master/r/499671
Reviewed-by: Jussi Rasanen <jrasanen@nvidia.com>
Tested-by: Jussi Rasanen <jrasanen@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Lauri Peltonen
2014-08-21 18:08:31 -07:00
committed by Dan Willemsen
parent 17aeb7e87e
commit 9981cf4424
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/nvgpu/gk20a/cde_gk20a.h
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@@ -26,6 +26,14 @@
#define MAX_CDE_USER_PARAMS 32
#define MAX_CDE_OBJ_IDS 4
/*
* The size of the context ring buffer that is dedicated for handling cde
* jobs. Re-using a context (=channel) for a differnt cde job forces a cpu
* wait on the previous job to that channel, so increasing this value
* reduces the likelihood of stalls.
*/
#define NUM_CDE_CONTEXTS 4
struct dma_buf;
struct gk20a;
@@ -241,7 +249,7 @@ struct gk20a_cde_app {
struct mutex mutex;
struct vm_gk20a *vm;
struct gk20a_cde_ctx cde_ctx[1];
struct gk20a_cde_ctx cde_ctx[NUM_CDE_CONTEXTS];
int cde_ctx_ptr;
u32 shader_parameter;