winsys/svga: Make it possible to specify coherent resources
Add a flag in the surface cache key and a winsys usage flag to specify coherent memory. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
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@ -550,6 +550,8 @@ svga_screen_surface_create(struct svga_screen *svgascreen,
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usage |= SVGA_SURFACE_USAGE_SHARED;
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if (key->scanout)
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usage |= SVGA_SURFACE_USAGE_SCANOUT;
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if (key->coherent)
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usage |= SVGA_SURFACE_USAGE_COHERENT;
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handle = sws->surface_create(sws,
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key->flags,
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@ -69,6 +69,7 @@ struct svga_host_surface_cache_key
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uint32_t cachable:1; /* False if this is a shared surface */
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uint32_t sampleCount:5;
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uint32_t scanout:1;
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uint32_t coherent:1;
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};
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@ -81,8 +81,9 @@ struct winsys_handle;
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#define SVGA_FENCE_FLAG_EXEC (1 << 0)
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#define SVGA_FENCE_FLAG_QUERY (1 << 1)
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#define SVGA_SURFACE_USAGE_SHARED (1 << 0)
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#define SVGA_SURFACE_USAGE_SCANOUT (1 << 1)
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#define SVGA_SURFACE_USAGE_SHARED (1 << 0)
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#define SVGA_SURFACE_USAGE_SCANOUT (1 << 1)
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#define SVGA_SURFACE_USAGE_COHERENT (1 << 2)
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#define SVGA_QUERY_FLAG_SET (1 << 0)
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#define SVGA_QUERY_FLAG_REF (1 << 1)
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@ -677,6 +678,8 @@ struct svga_winsys_screen
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/** Can we do DMA with guest-backed objects enabled? */
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bool have_gb_dma;
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/** Do we support coherent surface memory? */
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bool have_coherent;
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/**
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* Create and define a GB shader.
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*/
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@ -315,7 +315,7 @@ vmw_svga_winsys_buffer_wrap(struct pb_buffer *buffer)
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}
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buf->pb_buf = buffer;
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buf->fbuf = debug_flush_buf_create(TRUE, VMW_DEBUG_FLUSH_STACK);
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buf->fbuf = debug_flush_buf_create(FALSE, VMW_DEBUG_FLUSH_STACK);
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return buf;
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}
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@ -365,7 +365,7 @@ vmw_svga_winsys_buffer_map(struct svga_winsys_screen *sws,
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STATIC_ASSERT((unsigned) PB_USAGE_UNSYNCHRONIZED ==
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(unsigned) PIPE_TRANSFER_UNSYNCHRONIZED);
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map = pb_map(vmw_pb_buffer(buf), flags, NULL);
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map = pb_map(vmw_pb_buffer(buf), flags & PB_USAGE_ALL, NULL);
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#ifdef DEBUG
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if (map != NULL)
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@ -246,7 +246,7 @@ vmw_ioctl_gb_surface_create(struct vmw_winsys_screen *vws,
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if (usage & SVGA_SURFACE_USAGE_SHARED)
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req->base.drm_surface_flags |= drm_vmw_surface_flag_shareable;
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if (vws->force_coherent)
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if ((usage & SVGA_SURFACE_USAGE_COHERENT) || vws->force_coherent)
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req->base.drm_surface_flags |= drm_vmw_surface_flag_coherent;
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req->base.drm_surface_flags |= drm_vmw_surface_flag_create_buffer;
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@ -1117,6 +1117,7 @@ vmw_ioctl_init(struct vmw_winsys_screen *vws)
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vws->ioctl.num_cap_3d = SVGA3D_DEVCAP_MAX;
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if (have_drm_2_16) {
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vws->base.have_coherent = TRUE;
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getenv_val = getenv("SVGA_FORCE_COHERENT");
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if (getenv_val && strcmp(getenv_val, "0") != 0)
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vws->force_coherent = TRUE;
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@ -45,21 +45,14 @@ vmw_svga_winsys_surface_map(struct svga_winsys_context *swc,
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struct pb_buffer *pb_buf;
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uint32_t pb_flags;
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struct vmw_winsys_screen *vws = vsrf->screen;
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*retry = FALSE;
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assert((flags & (PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE)) != 0);
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mtx_lock(&vsrf->mutex);
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if (vsrf->mapcount) {
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/*
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* Only allow multiple readers to map.
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*/
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if ((flags & PIPE_TRANSFER_WRITE) ||
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(vsrf->map_mode & PIPE_TRANSFER_WRITE))
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goto out_unlock;
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data = vsrf->data;
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goto out_mapped;
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/* Other mappers will get confused if we discard. */
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flags &= ~PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
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}
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vsrf->rebind = FALSE;
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@ -89,7 +82,8 @@ vmw_svga_winsys_surface_map(struct svga_winsys_context *swc,
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goto out_unlock;
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}
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pb_flags = flags & (PIPE_TRANSFER_READ_WRITE | PIPE_TRANSFER_UNSYNCHRONIZED);
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pb_flags = flags & (PIPE_TRANSFER_READ_WRITE | PIPE_TRANSFER_UNSYNCHRONIZED |
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PIPE_TRANSFER_PERSISTENT);
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if (flags & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
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struct pb_manager *provider;
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@ -169,10 +163,10 @@ vmw_svga_winsys_surface_unmap(struct svga_winsys_context *swc,
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if (--vsrf->mapcount == 0) {
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*rebind = vsrf->rebind;
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vsrf->rebind = FALSE;
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vmw_svga_winsys_buffer_unmap(&vsrf->screen->base, vsrf->buf);
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} else {
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*rebind = FALSE;
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}
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vmw_svga_winsys_buffer_unmap(&vsrf->screen->base, vsrf->buf);
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mtx_unlock(&vsrf->mutex);
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}
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