diff options
Diffstat (limited to 'src/gallium/winsys/drm/vmware/core/vmw_context.c')
-rw-r--r-- | src/gallium/winsys/drm/vmware/core/vmw_context.c | 114 |
1 files changed, 102 insertions, 12 deletions
diff --git a/src/gallium/winsys/drm/vmware/core/vmw_context.c b/src/gallium/winsys/drm/vmware/core/vmw_context.c index b6997588de..b5fd4f5a6a 100644 --- a/src/gallium/winsys/drm/vmware/core/vmw_context.c +++ b/src/gallium/winsys/drm/vmware/core/vmw_context.c @@ -41,9 +41,18 @@ #define VMW_COMMAND_SIZE (64*1024) #define VMW_SURFACE_RELOCS (1024) +#define VMW_REGION_RELOCS (512) #define VMW_MUST_FLUSH_STACK 8 +struct vmw_region_relocation +{ + struct SVGAGuestPtr *where; + struct pb_buffer *buffer; + /* TODO: put offset info inside where */ + uint32 offset; +}; + struct vmw_svga_winsys_context { struct svga_winsys_context base; @@ -69,10 +78,31 @@ struct vmw_svga_winsys_context uint32_t staged; uint32_t reserved; } surface; + + struct { + struct vmw_region_relocation relocs[VMW_REGION_RELOCS]; + uint32_t size; + uint32_t used; + uint32_t staged; + uint32_t reserved; + } region; struct pb_validate *validate; uint32_t last_fence; + + /** + * The amount of GMR that is referred by the commands currently batched + * in the context. + */ + uint32_t seen_regions; + + /** + * Whether this context should fail to reserve more commands, not because it + * ran out of command space, but because a substantial ammount of GMR was + * referred. + */ + boolean preemptive_flush; }; @@ -96,6 +126,19 @@ vmw_swc_flush(struct svga_winsys_context *swc, ret = pb_validate_validate(vswc->validate); assert(ret == PIPE_OK); if(ret == PIPE_OK) { + + /* Apply relocations */ + for(i = 0; i < vswc->region.used; ++i) { + struct vmw_region_relocation *reloc = &vswc->region.relocs[i]; + struct SVGAGuestPtr ptr; + + if(!vmw_gmr_bufmgr_region_ptr(reloc->buffer, &ptr)) + assert(0); + + ptr.offset += reloc->offset; + + *reloc->where = ptr; + } if (vswc->command.used) vmw_ioctl_command(vswc->vws, @@ -121,9 +164,18 @@ vmw_swc_flush(struct svga_winsys_context *swc, vswc->surface.used = 0; vswc->surface.reserved = 0; + for(i = 0; i < vswc->region.used + vswc->region.staged; ++i) { + pb_reference(&vswc->region.relocs[i].buffer, NULL); + } + + vswc->region.used = 0; + vswc->region.reserved = 0; + #ifdef DEBUG vswc->must_flush = FALSE; #endif + vswc->preemptive_flush = FALSE; + vswc->seen_regions = 0; if(pfence) *pfence = fence; @@ -151,8 +203,10 @@ vmw_swc_reserve(struct svga_winsys_context *swc, if(nr_bytes > vswc->command.size) return NULL; - if(vswc->command.used + nr_bytes > vswc->command.size || - vswc->surface.used + nr_relocs > vswc->surface.size) { + if(vswc->preemptive_flush || + vswc->command.used + nr_bytes > vswc->command.size || + vswc->surface.used + nr_relocs > vswc->surface.size || + vswc->region.used + nr_relocs > vswc->region.size) { #ifdef DEBUG vswc->must_flush = TRUE; debug_backtrace_capture(vswc->must_flush_stack, 1, @@ -163,11 +217,14 @@ vmw_swc_reserve(struct svga_winsys_context *swc, assert(vswc->command.used + nr_bytes <= vswc->command.size); assert(vswc->surface.used + nr_relocs <= vswc->surface.size); - + assert(vswc->region.used + nr_relocs <= vswc->region.size); + vswc->command.reserved = nr_bytes; vswc->surface.reserved = nr_relocs; vswc->surface.staged = 0; - + vswc->region.reserved = nr_relocs; + vswc->region.staged = 0; + return vswc->command.buffer + vswc->command.used; } @@ -206,20 +263,41 @@ vmw_swc_region_relocation(struct svga_winsys_context *swc, unsigned flags) { struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc); - struct SVGAGuestPtr ptr; - struct pb_buffer *buf = vmw_pb_buffer(buffer); + struct vmw_region_relocation *reloc; enum pipe_error ret; + + assert(vswc->region.staged < vswc->region.reserved); - if(!vmw_gmr_bufmgr_region_ptr(buf, &ptr)) - assert(0); - - ptr.offset += offset; + reloc = &vswc->region.relocs[vswc->region.used + vswc->region.staged]; + reloc->where = where; + pb_reference(&reloc->buffer, vmw_pb_buffer(buffer)); + reloc->offset = offset; - *where = ptr; + ++vswc->region.staged; - ret = pb_validate_add_buffer(vswc->validate, buf, flags); + ret = pb_validate_add_buffer(vswc->validate, reloc->buffer, flags); /* TODO: Update pipebuffer to reserve buffers and not fail here */ assert(ret == PIPE_OK); + + /* + * Flush preemptively the FIFO commands to keep the GMR working set within + * the GMR pool size. + * + * This is necessary for applications like SPECviewperf that generate huge + * amounts of immediate vertex data, so that we don't pile up too much of + * that vertex data neither in the guest nor in the host. + * + * Note that in the current implementation if a region is referred twice in + * a command stream, it will be accounted twice. We could detect repeated + * regions and count only once, but there is no incentive to do that, since + * regions are typically short-lived; always referred in a single command; + * and at the worst we just flush the commands a bit sooner, which for the + * SVGA virtual device it's not a performance issue since flushing commands + * to the FIFO won't cause flushing in the host. + */ + vswc->seen_regions += reloc->buffer->base.size; + if(vswc->seen_regions >= VMW_GMR_POOL_SIZE/2) + vswc->preemptive_flush = TRUE; } @@ -238,6 +316,12 @@ vmw_swc_commit(struct svga_winsys_context *swc) vswc->surface.used += vswc->surface.staged; vswc->surface.staged = 0; vswc->surface.reserved = 0; + + assert(vswc->region.staged <= vswc->region.reserved); + assert(vswc->region.used + vswc->region.staged <= vswc->region.size); + vswc->region.used += vswc->region.staged; + vswc->region.staged = 0; + vswc->region.reserved = 0; } @@ -246,6 +330,11 @@ vmw_swc_destroy(struct svga_winsys_context *swc) { struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc); unsigned i; + + for(i = 0; i < vswc->region.used; ++i) { + pb_reference(&vswc->region.relocs[i].buffer, NULL); + } + for(i = 0; i < vswc->surface.used; ++i) { p_atomic_dec(&vswc->surface.handles[i]->validated); vmw_svga_winsys_surface_reference(&vswc->surface.handles[i], NULL); @@ -279,6 +368,7 @@ vmw_svga_winsys_context_create(struct svga_winsys_screen *sws) vswc->command.size = VMW_COMMAND_SIZE; vswc->surface.size = VMW_SURFACE_RELOCS; + vswc->region.size = VMW_REGION_RELOCS; vswc->validate = pb_validate_create(); if(!vswc->validate) { |