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turnip: semaphore support.

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There is only one queue for now, so for non-shared semaphores, the
implementation is basically a no-op. For shared semaphores, this
always uses syncobjs. This depends on syncobj support in the msm
kernel driver.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2769>
This commit is contained in:
Bas Nieuwenhuizen
2019-11-17 06:23:15 +01:00
committed by Marge Bot
parent 6283da34a9
commit aba8c579a9
4 changed files with 312 additions and 45 deletions
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24
include/drm-uapi/msm_drm.h
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@@ -217,13 +217,28 @@ struct drm_msm_gem_submit_bo {
#define MSM_SUBMIT_FENCE_FD_IN 0x40000000 /* enable input fence_fd */
#define MSM_SUBMIT_FENCE_FD_OUT 0x20000000 /* enable output fence_fd */
#define MSM_SUBMIT_SUDO 0x10000000 /* run submitted cmds from RB */
#define MSM_SUBMIT_SYNCOBJ_IN 0x08000000 /* enable input syncobj */
#define MSM_SUBMIT_SYNCOBJ_OUT 0x04000000 /* enable output syncobj */
#define MSM_SUBMIT_FLAGS ( \
MSM_SUBMIT_NO_IMPLICIT | \
MSM_SUBMIT_FENCE_FD_IN | \
MSM_SUBMIT_FENCE_FD_OUT | \
MSM_SUBMIT_SUDO | \
MSM_SUBMIT_SYNCOBJ_IN | \
MSM_SUBMIT_SYNCOBJ_OUT | \
0)
#define MSM_SUBMIT_SYNCOBJ_RESET 0x00000001 /* Reset syncobj after wait. */
#define MSM_SUBMIT_SYNCOBJ_FLAGS ( \
MSM_SUBMIT_SYNCOBJ_RESET | \
0)
struct drm_msm_gem_submit_syncobj {
__u32 handle; /* in, syncobj handle. */
__u32 flags; /* in, from MSM_SUBMIT_SYNCOBJ_FLAGS */
__u64 point; /* in, timepoint for timeline syncobjs. */
};
/* Each cmdstream submit consists of a table of buffers involved, and
* one or more cmdstream buffers. This allows for conditional execution
* (context-restore), and IB buffers needed for per tile/bin draw cmds.
@@ -236,7 +251,14 @@ struct drm_msm_gem_submit {
__u64 bos; /* in, ptr to array of submit_bo's */
__u64 cmds; /* in, ptr to array of submit_cmd's */
__s32 fence_fd; /* in/out fence fd (see MSM_SUBMIT_FENCE_FD_IN/OUT) */
__u32 queueid; /* in, submitqueue id */
__u32 queueid; /* in, submitqueue id */
__u64 in_syncobjs; /* in, ptr to to array of drm_msm_gem_submit_syncobj */
__u64 out_syncobjs; /* in, ptr to to array of drm_msm_gem_submit_syncobj */
__u32 nr_in_syncobjs; /* in, number of entries in in_syncobj */
__u32 nr_out_syncobjs; /* in, number of entries in out_syncobj. */
__u32 syncobj_stride; /* in, stride of syncobj arrays. */
__u32 pad; /*in, reserved for future use, always 0. */
};
/* The normal way to synchronize with the GPU is just to CPU_PREP on