From: Robert Foss Date: Mon, 29 Aug 2016 23:13:45 +0000 (+0000) Subject: virgl: native fence fd support X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1a1c21e7621b5177febf191fcd3d3b8ef69dc96;p=mesa.git virgl: native fence fd support Following the support for fences on the virtio driver add support for native fence on virgl. This was somewhat based on the freedeno one. Signed-off-by: Gustavo Padovan Signed-off-by: Robert Foss Reviewed-by: Emil Velikov --- diff --git a/src/gallium/drivers/virgl/virgl_context.c b/src/gallium/drivers/virgl/virgl_context.c index 96932c473d8..9be7775abd3 100644 --- a/src/gallium/drivers/virgl/virgl_context.c +++ b/src/gallium/drivers/virgl/virgl_context.c @@ -21,6 +21,7 @@ * USE OR OTHER DEALINGS IN THE SOFTWARE. */ +#include #include "pipe/p_shader_tokens.h" #include "pipe/p_context.h" @@ -709,13 +710,20 @@ static void virgl_draw_vbo(struct pipe_context *ctx, } -static void virgl_flush_eq(struct virgl_context *ctx, void *closure) +static void virgl_flush_eq(struct virgl_context *ctx, void *closure, + struct pipe_fence_handle **fence) { struct virgl_screen *rs = virgl_screen(ctx->base.screen); + int out_fence_fd = -1; /* send the buffer to the remote side for decoding */ ctx->num_transfers = ctx->num_draws = 0; - rs->vws->submit_cmd(rs->vws, ctx->cbuf); + + rs->vws->submit_cmd(rs->vws, ctx->cbuf, ctx->cbuf->in_fence_fd, + ctx->cbuf->needs_out_fence_fd ? &out_fence_fd : NULL); + + if (fence) + *fence = rs->vws->cs_create_fence(rs->vws, out_fence_fd); virgl_encoder_set_sub_ctx(ctx, ctx->hw_sub_ctx_id); @@ -728,11 +736,10 @@ static void virgl_flush_from_st(struct pipe_context *ctx, enum pipe_flush_flags flags) { struct virgl_context *vctx = virgl_context(ctx); - struct virgl_screen *rs = virgl_screen(ctx->screen); struct virgl_buffer *buf, *tmp; - if (fence) - *fence = rs->vws->cs_create_fence(rs->vws); + if (flags & PIPE_FLUSH_FENCE_FD) + vctx->cbuf->needs_out_fence_fd = true; LIST_FOR_EACH_ENTRY_SAFE(buf, tmp, &vctx->to_flush_bufs, flush_list) { struct pipe_resource *res = &buf->base.u.b; @@ -742,7 +749,13 @@ static void virgl_flush_from_st(struct pipe_context *ctx, pipe_resource_reference(&res, NULL); } - virgl_flush_eq(vctx, vctx); + virgl_flush_eq(vctx, vctx, fence); + + if (vctx->cbuf->in_fence_fd != -1) { + close(vctx->cbuf->in_fence_fd); + vctx->cbuf->in_fence_fd = -1; + } + vctx->cbuf->needs_out_fence_fd = false; } static struct pipe_sampler_view *virgl_create_sampler_view(struct pipe_context *ctx, @@ -1016,6 +1029,23 @@ static void virgl_set_shader_buffers(struct pipe_context *ctx, virgl_encode_set_shader_buffers(vctx, shader, start_slot, count, buffers); } +static void virgl_create_fence_fd(struct pipe_context *ctx, + struct pipe_fence_handle **fence, int fd) +{ + struct virgl_screen *rs = virgl_screen(ctx->screen); + + *fence = rs->vws->cs_create_fence(rs->vws, fd); +} + +static void virgl_fence_server_sync(struct pipe_context *ctx, + struct pipe_fence_handle *fence) +{ + struct virgl_context *vctx = virgl_context(ctx); + struct virgl_screen *rs = virgl_screen(ctx->screen); + + rs->vws->fence_server_sync(rs->vws, vctx->cbuf, fence); +} + static void virgl_set_shader_images(struct pipe_context *ctx, enum pipe_shader_type shader, unsigned start_slot, unsigned count, @@ -1108,7 +1138,7 @@ virgl_context_destroy( struct pipe_context *ctx ) vctx->framebuffer.zsbuf = NULL; vctx->framebuffer.nr_cbufs = 0; virgl_encoder_destroy_sub_ctx(vctx, vctx->hw_sub_ctx_id); - virgl_flush_eq(vctx, vctx); + virgl_flush_eq(vctx, vctx, NULL); rs->vws->cmd_buf_destroy(vctx->cbuf); if (vctx->uploader) @@ -1244,6 +1274,8 @@ struct pipe_context *virgl_context_create(struct pipe_screen *pscreen, vctx->base.resource_copy_region = virgl_resource_copy_region; vctx->base.flush_resource = virgl_flush_resource; vctx->base.blit = virgl_blit; + vctx->base.create_fence_fd = virgl_create_fence_fd; + vctx->base.fence_server_sync = virgl_fence_server_sync; vctx->base.set_shader_buffers = virgl_set_shader_buffers; vctx->base.set_hw_atomic_buffers = virgl_set_hw_atomic_buffers; diff --git a/src/gallium/drivers/virgl/virgl_screen.c b/src/gallium/drivers/virgl/virgl_screen.c index e71883b06f1..8addbea9e4c 100644 --- a/src/gallium/drivers/virgl/virgl_screen.c +++ b/src/gallium/drivers/virgl/virgl_screen.c @@ -340,7 +340,7 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param) case PIPE_CAP_VIDEO_MEMORY: return 0; case PIPE_CAP_NATIVE_FENCE_FD: - return 0; + return !!vscreen->vws->supports_fences; default: return u_pipe_screen_get_param_defaults(screen, param); } @@ -721,6 +721,15 @@ static boolean virgl_fence_finish(struct pipe_screen *screen, return vws->fence_wait(vws, fence, timeout); } +static int virgl_fence_get_fd(struct pipe_screen *screen, + struct pipe_fence_handle *fence) +{ + struct virgl_screen *vscreen = virgl_screen(screen); + struct virgl_winsys *vws = vscreen->vws; + + return vws->fence_get_fd(vws, fence); +} + static uint64_t virgl_get_timestamp(struct pipe_screen *_screen) { @@ -765,6 +774,7 @@ virgl_create_screen(struct virgl_winsys *vws) screen->base.fence_reference = virgl_fence_reference; //screen->base.fence_signalled = virgl_fence_signalled; screen->base.fence_finish = virgl_fence_finish; + screen->base.fence_get_fd = virgl_fence_get_fd; virgl_init_screen_resource_functions(&screen->base); diff --git a/src/gallium/drivers/virgl/virgl_winsys.h b/src/gallium/drivers/virgl/virgl_winsys.h index 0e6cb7953f6..d13212c5e84 100644 --- a/src/gallium/drivers/virgl/virgl_winsys.h +++ b/src/gallium/drivers/virgl/virgl_winsys.h @@ -40,10 +40,13 @@ struct virgl_drm_caps { struct virgl_cmd_buf { unsigned cdw; uint32_t *buf; + int in_fence_fd; + bool needs_out_fence_fd; }; struct virgl_winsys { unsigned pci_id; + int supports_fences; /* In/Out fences are supported */ void (*destroy)(struct virgl_winsys *vws); @@ -83,7 +86,8 @@ struct virgl_winsys { void (*cmd_buf_destroy)(struct virgl_cmd_buf *buf); void (*emit_res)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf, struct virgl_hw_res *res, boolean write_buffer); - int (*submit_cmd)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf); + int (*submit_cmd)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf, + int32_t in_fence_fd, int32_t *out_fence_fd); boolean (*res_is_referenced)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf, @@ -92,7 +96,7 @@ struct virgl_winsys { int (*get_caps)(struct virgl_winsys *vws, struct virgl_drm_caps *caps); /* fence */ - struct pipe_fence_handle *(*cs_create_fence)(struct virgl_winsys *vws); + struct pipe_fence_handle *(*cs_create_fence)(struct virgl_winsys *vws, int fd); bool (*fence_wait)(struct virgl_winsys *vws, struct pipe_fence_handle *fence, uint64_t timeout); @@ -107,6 +111,12 @@ struct virgl_winsys { unsigned level, unsigned layer, void *winsys_drawable_handle, struct pipe_box *sub_box); + void (*fence_server_sync)(struct virgl_winsys *vws, + struct virgl_cmd_buf *cbuf, + struct pipe_fence_handle *fence); + + int (*fence_get_fd)(struct virgl_winsys *vws, + struct pipe_fence_handle *fence); }; /* this defaults all newer caps, diff --git a/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c b/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c index 98e0e99f661..5b604044598 100644 --- a/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c +++ b/src/gallium/winsys/virgl/drm/virgl_drm_winsys.c @@ -38,11 +38,17 @@ #include "virgl/virgl_public.h" #include +#include #include "virtgpu_drm.h" #include "virgl_drm_winsys.h" #include "virgl_drm_public.h" + +#define VIRGL_DRM_VERSION(major, minor) ((major) << 16 | (minor)) +#define VIRGL_DRM_VERSION_FENCE_FD VIRGL_DRM_VERSION(1, 0) + + static inline boolean can_cache_resource(struct virgl_hw_res *res) { return res->cacheable == TRUE; @@ -70,6 +76,9 @@ static void virgl_hw_res_destroy(struct virgl_drm_winsys *qdws, if (res->ptr) os_munmap(res->ptr, res->size); + if (res->fence_fd != -1) + close(res->fence_fd); + memset(&args, 0, sizeof(args)); args.handle = res->bo_handle; drmIoctl(qdws->fd, DRM_IOCTL_GEM_CLOSE, &args); @@ -222,6 +231,7 @@ virgl_drm_winsys_resource_create(struct virgl_winsys *qws, res->stride = stride; pipe_reference_init(&res->reference, 1); res->num_cs_references = 0; + res->fence_fd = -1; return res; } @@ -457,6 +467,7 @@ virgl_drm_winsys_resource_create_handle(struct virgl_winsys *qws, res->stride = info_arg.stride; pipe_reference_init(&res->reference, 1); res->num_cs_references = 0; + res->fence_fd = -1; util_hash_table_set(qdws->bo_handles, (void *)(uintptr_t)handle, res); @@ -577,6 +588,7 @@ static struct virgl_cmd_buf *virgl_drm_cmd_buf_create(struct virgl_winsys *qws) } cbuf->base.buf = cbuf->buf; + cbuf->base.in_fence_fd = -1; return &cbuf->base; } @@ -687,7 +699,8 @@ static boolean virgl_drm_res_is_ref(struct virgl_winsys *qws, } static int virgl_drm_winsys_submit_cmd(struct virgl_winsys *qws, - struct virgl_cmd_buf *_cbuf) + struct virgl_cmd_buf *_cbuf, + int in_fence_fd, int *out_fence_fd) { struct virgl_drm_winsys *qdws = virgl_drm_winsys(qws); struct virgl_drm_cmd_buf *cbuf = virgl_drm_cmd_buf(_cbuf); @@ -702,12 +715,24 @@ static int virgl_drm_winsys_submit_cmd(struct virgl_winsys *qws, eb.size = cbuf->base.cdw * 4; eb.num_bo_handles = cbuf->cres; eb.bo_handles = (unsigned long)(void *)cbuf->res_hlist; + eb.fence_fd = -1; + + if (in_fence_fd != -1) { + eb.flags |= VIRTGPU_EXECBUF_FENCE_FD_IN; + eb.fence_fd = in_fence_fd; + } + + if (out_fence_fd != NULL) + eb.flags |= VIRTGPU_EXECBUF_FENCE_FD_OUT; ret = drmIoctl(qdws->fd, DRM_IOCTL_VIRTGPU_EXECBUFFER, &eb); if (ret == -1) fprintf(stderr,"got error from kernel - expect bad rendering %d\n", errno); cbuf->base.cdw = 0; + if (out_fence_fd != NULL) + *out_fence_fd = eb.fence_fd; + virgl_drm_release_all_res(qdws, cbuf); memset(cbuf->is_handle_added, 0, sizeof(cbuf->is_handle_added)); @@ -759,7 +784,7 @@ static int handle_compare(void *key1, void *key2) } static struct pipe_fence_handle * -virgl_cs_create_fence(struct virgl_winsys *vws) +virgl_cs_create_fence(struct virgl_winsys *vws, int fd) { struct virgl_hw_res *res; @@ -769,6 +794,7 @@ virgl_cs_create_fence(struct virgl_winsys *vws) VIRGL_BIND_CUSTOM, 8, 1, 1, 0, 0, 0, 8); + res->fence_fd = fd; return (struct pipe_fence_handle *)res; } @@ -793,6 +819,12 @@ static bool virgl_fence_wait(struct virgl_winsys *vws, return TRUE; } virgl_drm_resource_wait(vws, res); + + if (res->fence_fd != -1) { + int ret = sync_wait(res->fence_fd, timeout / 1000000); + return ret == 0; + } + return TRUE; } @@ -805,11 +837,51 @@ static void virgl_fence_reference(struct virgl_winsys *vws, virgl_hw_res(src)); } +static void virgl_fence_server_sync(struct virgl_winsys *vws, + struct virgl_cmd_buf *cbuf, + struct pipe_fence_handle *fence) +{ + struct virgl_hw_res *hw_res = virgl_hw_res(fence); + + /* if not an external fence, then nothing more to do without preemption: */ + if (hw_res->fence_fd == -1) + return; + + sync_accumulate("virgl", &cbuf->in_fence_fd, hw_res->fence_fd); +} + +static int virgl_fence_get_fd(struct virgl_winsys *vws, + struct pipe_fence_handle *fence) +{ + struct virgl_hw_res *hw_res = virgl_hw_res(fence); + + return dup(hw_res->fence_fd); +} + +static int virgl_drm_get_version(int fd) +{ + int ret; + drmVersionPtr version; + + version = drmGetVersion(fd); + + if (!version) + ret = -EFAULT; + else if (version->version_major != 0) + ret = -EINVAL; + else + ret = version->version_minor; + + drmFreeVersion(version); + + return ret; +} static struct virgl_winsys * virgl_drm_winsys_create(int drmFD) { struct virgl_drm_winsys *qdws; + int drm_version; int ret; int gl = 0; struct drm_virtgpu_getparam getparam = {0}; @@ -820,6 +892,10 @@ virgl_drm_winsys_create(int drmFD) if (ret < 0 || !gl) return NULL; + drm_version = virgl_drm_get_version(qdws->fd); + if (drm_version < 0) + return NULL; + qdws = CALLOC_STRUCT(virgl_drm_winsys); if (!qdws) return NULL; @@ -851,9 +927,13 @@ virgl_drm_winsys_create(int drmFD) qdws->base.cs_create_fence = virgl_cs_create_fence; qdws->base.fence_wait = virgl_fence_wait; qdws->base.fence_reference = virgl_fence_reference; + qdws->base.fence_server_sync = virgl_fence_server_sync; + qdws->base.fence_get_fd = virgl_fence_get_fd; + qdws->base.supports_fences = drm_version >= VIRGL_DRM_VERSION_FENCE_FD; qdws->base.get_caps = virgl_drm_get_caps; + uint32_t value = 0; getparam.param = VIRTGPU_PARAM_CAPSET_QUERY_FIX; getparam.value = (uint64_t)(uintptr_t)&value; diff --git a/src/gallium/winsys/virgl/drm/virgl_drm_winsys.h b/src/gallium/winsys/virgl/drm/virgl_drm_winsys.h index b28e7127ca0..4316a74977d 100644 --- a/src/gallium/winsys/virgl/drm/virgl_drm_winsys.h +++ b/src/gallium/winsys/virgl/drm/virgl_drm_winsys.h @@ -50,12 +50,14 @@ struct virgl_hw_res { int64_t start, end; boolean flinked; uint32_t flink; + int fence_fd; }; struct virgl_drm_winsys { struct virgl_winsys base; int fd; + int drm_version; struct list_head delayed; int num_delayed; unsigned usecs; diff --git a/src/gallium/winsys/virgl/drm/virtgpu_drm.h b/src/gallium/winsys/virgl/drm/virtgpu_drm.h index 8596febe9fd..4be22aa077c 100644 --- a/src/gallium/winsys/virgl/drm/virtgpu_drm.h +++ b/src/gallium/winsys/virgl/drm/virtgpu_drm.h @@ -44,6 +44,16 @@ #define DRM_VIRTGPU_WAIT 0x08 #define DRM_VIRTGPU_GET_CAPS 0x09 +/* + * virtgpu execbuffer flags + */ +#define VIRTGPU_EXECBUF_FENCE_FD_IN 0x01 +#define VIRTGPU_EXECBUF_FENCE_FD_OUT 0x02 +#define VIRTGPU_EXECBUF_FLAGS (\ + VIRTGPU_EXECBUF_FENCE_FD_IN |\ + VIRTGPU_EXECBUF_FENCE_FD_OUT |\ + 0) + struct drm_virtgpu_map { uint64_t offset; /* use for mmap system call */ uint32_t handle; @@ -56,7 +66,7 @@ struct drm_virtgpu_execbuffer { uint64_t command; /* void* */ uint64_t bo_handles; uint32_t num_bo_handles; - uint32_t pad; + int32_t fence_fd; }; #define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */ @@ -130,7 +140,7 @@ struct drm_virtgpu_get_caps { DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_MAP, struct drm_virtgpu_map) #define DRM_IOCTL_VIRTGPU_EXECBUFFER \ - DRM_IOW(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\ struct drm_virtgpu_execbuffer) #define DRM_IOCTL_VIRTGPU_GETPARAM \ diff --git a/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c b/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c index f44d4d74ff1..c1c88151ad3 100644 --- a/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c +++ b/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c @@ -501,7 +501,8 @@ static void virgl_vtest_add_res(struct virgl_vtest_winsys *vtws, } static int virgl_vtest_winsys_submit_cmd(struct virgl_winsys *vws, - struct virgl_cmd_buf *_cbuf) + struct virgl_cmd_buf *_cbuf, + int in_fence_fd, int *out_fence_fd) { struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws); struct virgl_vtest_cmd_buf *cbuf = virgl_vtest_cmd_buf(_cbuf); @@ -510,6 +511,9 @@ static int virgl_vtest_winsys_submit_cmd(struct virgl_winsys *vws, if (cbuf->base.cdw == 0) return 0; + assert(in_fence_fd == -1); + assert(out_fence_fd == NULL); + ret = virgl_vtest_submit_cmd(vtws, cbuf); virgl_vtest_release_all_res(vtws, cbuf); @@ -552,7 +556,7 @@ static int virgl_vtest_get_caps(struct virgl_winsys *vws, } static struct pipe_fence_handle * -virgl_cs_create_fence(struct virgl_winsys *vws) +virgl_cs_create_fence(struct virgl_winsys *vws, int fd) { struct virgl_hw_res *res; @@ -694,8 +698,10 @@ virgl_vtest_winsys_wrap(struct sw_winsys *sws) vtws->base.cs_create_fence = virgl_cs_create_fence; vtws->base.fence_wait = virgl_fence_wait; vtws->base.fence_reference = virgl_fence_reference; + vtws->base.supports_fences = 0; vtws->base.flush_frontbuffer = virgl_vtest_flush_frontbuffer; + return &vtws->base; }