radeonsi: store shader disassemblies in memory for future users
[mesa.git] / src / gallium / drivers / r600 / evergreen_compute.c
index a88cad1246eea818cb297cb1d7077402f09d7a9c..d89e3de9cc68a39474b11efbb4537d44cd82ed1b 100644 (file)
@@ -30,7 +30,7 @@
 #include "pipe/p_state.h"
 #include "pipe/p_context.h"
 #include "util/u_blitter.h"
-#include "util/u_double_list.h"
+#include "util/list.h"
 #include "util/u_transfer.h"
 #include "util/u_surface.h"
 #include "util/u_pack_color.h"
 #include "util/u_inlines.h"
 #include "util/u_framebuffer.h"
 #include "pipebuffer/pb_buffer.h"
-#include "r600.h"
 #include "evergreend.h"
-#include "r600_resource.h"
 #include "r600_shader.h"
 #include "r600_pipe.h"
 #include "r600_formats.h"
 #include "evergreen_compute.h"
-#include "r600_hw_context_priv.h"
 #include "evergreen_compute_internal.h"
 #include "compute_memory_pool.h"
+#include "sb/sb_public.h"
 #ifdef HAVE_OPENCL
-#include "llvm_wrapper.h"
+#include "radeon/radeon_llvm_util.h"
 #endif
+#include "radeon/radeon_elf_util.h"
+#include <inttypes.h>
 
 /**
 RAT0 is for global binding write
@@ -83,12 +83,109 @@ writable images will consume TEX slots, VTX slots too because of linear indexing
 
 */
 
-const struct u_resource_vtbl r600_global_buffer_vtbl =
+struct r600_resource* r600_compute_buffer_alloc_vram(
+       struct r600_screen *screen,
+       unsigned size)
+{
+       struct pipe_resource * buffer = NULL;
+       assert(size);
+
+       buffer = pipe_buffer_create(
+               (struct pipe_screen*) screen,
+               PIPE_BIND_CUSTOM,
+               PIPE_USAGE_IMMUTABLE,
+               size);
+
+       return (struct r600_resource *)buffer;
+}
+
+
+static void evergreen_set_rat(
+       struct r600_pipe_compute *pipe,
+       unsigned id,
+       struct r600_resource* bo,
+       int start,
+       int size)
+{
+       struct pipe_surface rat_templ;
+       struct r600_surface *surf = NULL;
+       struct r600_context *rctx = NULL;
+
+       assert(id < 12);
+       assert((size & 3) == 0);
+       assert((start & 0xFF) == 0);
+
+       rctx = pipe->ctx;
+
+       COMPUTE_DBG(rctx->screen, "bind rat: %i \n", id);
+
+       /* Create the RAT surface */
+       memset(&rat_templ, 0, sizeof(rat_templ));
+       rat_templ.format = PIPE_FORMAT_R32_UINT;
+       rat_templ.u.tex.level = 0;
+       rat_templ.u.tex.first_layer = 0;
+       rat_templ.u.tex.last_layer = 0;
+
+       /* Add the RAT the list of color buffers */
+       pipe->ctx->framebuffer.state.cbufs[id] = pipe->ctx->b.b.create_surface(
+               (struct pipe_context *)pipe->ctx,
+               (struct pipe_resource *)bo, &rat_templ);
+
+       /* Update the number of color buffers */
+       pipe->ctx->framebuffer.state.nr_cbufs =
+               MAX2(id + 1, pipe->ctx->framebuffer.state.nr_cbufs);
+
+       /* Update the cb_target_mask
+        * XXX: I think this is a potential spot for bugs once we start doing
+        * GL interop.  cb_target_mask may be modified in the 3D sections
+        * of this driver. */
+       pipe->ctx->compute_cb_target_mask |= (0xf << (id * 4));
+
+       surf = (struct r600_surface*)pipe->ctx->framebuffer.state.cbufs[id];
+       evergreen_init_color_surface_rat(rctx, surf);
+}
+
+static void evergreen_cs_set_vertex_buffer(
+       struct r600_context * rctx,
+       unsigned vb_index,
+       unsigned offset,
+       struct pipe_resource * buffer)
+{
+       struct r600_vertexbuf_state *state = &rctx->cs_vertex_buffer_state;
+       struct pipe_vertex_buffer *vb = &state->vb[vb_index];
+       vb->stride = 1;
+       vb->buffer_offset = offset;
+       vb->buffer = buffer;
+       vb->user_buffer = NULL;
+
+       /* The vertex instructions in the compute shaders use the texture cache,
+        * so we need to invalidate it. */
+       rctx->b.flags |= R600_CONTEXT_INV_VERTEX_CACHE;
+       state->enabled_mask |= 1 << vb_index;
+       state->dirty_mask |= 1 << vb_index;
+       state->atom.dirty = true;
+}
+
+static void evergreen_cs_set_constant_buffer(
+       struct r600_context * rctx,
+       unsigned cb_index,
+       unsigned offset,
+       unsigned size,
+       struct pipe_resource * buffer)
+{
+       struct pipe_constant_buffer cb;
+       cb.buffer_size = size;
+       cb.buffer_offset = offset;
+       cb.buffer = buffer;
+       cb.user_buffer = NULL;
+
+       rctx->b.b.set_constant_buffer(&rctx->b.b, PIPE_SHADER_COMPUTE, cb_index, &cb);
+}
+
+static const struct u_resource_vtbl r600_global_buffer_vtbl =
 {
        u_default_resource_get_handle, /* get_handle */
        r600_compute_global_buffer_destroy, /* resource_destroy */
-       r600_compute_global_get_transfer, /* get_transfer */
-       r600_compute_global_transfer_destroy, /* transfer_destroy */
        r600_compute_global_transfer_map, /* transfer_map */
        r600_compute_global_transfer_flush_region,/* transfer_flush_region */
        r600_compute_global_transfer_unmap, /* transfer_unmap */
@@ -101,37 +198,50 @@ void *evergreen_create_compute_state(
        const const struct pipe_compute_state *cso)
 {
        struct r600_context *ctx = (struct r600_context *)ctx_;
-
+       struct r600_pipe_compute *shader = CALLOC_STRUCT(r600_pipe_compute);
 #ifdef HAVE_OPENCL
        const struct pipe_llvm_program_header * header;
-       const unsigned char * code;
-
-       COMPUTE_DBG("*** evergreen_create_compute_state\n");
+       const char *code;
+       void *p;
+       boolean use_kill;
 
+       COMPUTE_DBG(ctx->screen, "*** evergreen_create_compute_state\n");
        header = cso->prog;
        code = cso->prog + sizeof(struct pipe_llvm_program_header);
-#endif
-
-       if (!ctx->screen->screen.get_param(&ctx->screen->screen,
-                                                       PIPE_CAP_COMPUTE)) {
-               fprintf(stderr, "Compute is not supported\n");
-               return NULL;
+#if HAVE_LLVM < 0x0306
+        (void)use_kill;
+       (void)p;
+       shader->llvm_ctx = LLVMContextCreate();
+       shader->num_kernels = radeon_llvm_get_num_kernels(shader->llvm_ctx,
+                               code, header->num_bytes);
+       shader->kernels = CALLOC(sizeof(struct r600_kernel),
+                               shader->num_kernels);
+       {
+               unsigned i;
+               for (i = 0; i < shader->num_kernels; i++) {
+                       struct r600_kernel *kernel = &shader->kernels[i];
+                       kernel->llvm_module = radeon_llvm_get_kernel_module(
+                               shader->llvm_ctx, i, code, header->num_bytes);
+               }
        }
-       struct r600_pipe_compute *shader =      CALLOC_STRUCT(r600_pipe_compute);
+#else
+       memset(&shader->binary, 0, sizeof(shader->binary));
+       radeon_elf_read(code, header->num_bytes, &shader->binary);
+       r600_create_shader(&shader->bc, &shader->binary, &use_kill);
+
+       shader->code_bo = r600_compute_buffer_alloc_vram(ctx->screen,
+                                                       shader->bc.ndw * 4);
+       p = r600_buffer_map_sync_with_rings(&ctx->b, shader->code_bo, PIPE_TRANSFER_WRITE);
+       memcpy(p, shader->bc.bytecode, shader->bc.ndw * 4);
+       ctx->b.ws->buffer_unmap(shader->code_bo->cs_buf);
+#endif
+#endif
 
        shader->ctx = (struct r600_context*)ctx;
-       shader->resources = (struct evergreen_compute_resource*)
-                       CALLOC(sizeof(struct evergreen_compute_resource),
-                       get_compute_resource_num());
-       shader->local_size = cso->req_local_mem; ///TODO: assert it
+       shader->local_size = cso->req_local_mem;
        shader->private_size = cso->req_private_mem;
        shader->input_size = cso->req_input_mem;
 
-#ifdef HAVE_OPENCL 
-       shader->mod = llvm_parse_bitcode(code, header->num_bytes);
-
-       r600_compute_shader_create(ctx_, shader->mod, &shader->bc);
-#endif
        return shader;
 }
 
@@ -139,63 +249,23 @@ void evergreen_delete_compute_state(struct pipe_context *ctx, void* state)
 {
        struct r600_pipe_compute *shader = (struct r600_pipe_compute *)state;
 
-       free(shader->resources);
-       free(shader);
+       if (!shader)
+               return;
+
+       FREE(shader);
 }
 
 static void evergreen_bind_compute_state(struct pipe_context *ctx_, void *state)
 {
        struct r600_context *ctx = (struct r600_context *)ctx_;
 
-       COMPUTE_DBG("*** evergreen_bind_compute_state\n");
-
-       ctx->cs_shader = (struct r600_pipe_compute *)state;
-
-       if (!ctx->cs_shader->shader_code_bo) {
-
-               ctx->cs_shader->shader_code_bo =
-                       r600_compute_buffer_alloc_vram(ctx->screen,
-                                       ctx->cs_shader->bc.ndw * 4);
-
-               void *p = ctx->ws->buffer_map(
-                                       ctx->cs_shader->shader_code_bo->cs_buf,
-                                       ctx->cs, PIPE_TRANSFER_WRITE);
-
-               memcpy(p, ctx->cs_shader->bc.bytecode, ctx->cs_shader->bc.ndw * 4);
-
-               ctx->ws->buffer_unmap(ctx->cs_shader->shader_code_bo->cs_buf);
-
-       }
-
-       struct evergreen_compute_resource* res = get_empty_res(ctx->cs_shader,
-                                               COMPUTE_RESOURCE_SHADER, 0);
-
-       if (ctx->chip_class < CAYMAN) {
-               evergreen_reg_set(res, R_008C0C_SQ_GPR_RESOURCE_MGMT_3,
-                       S_008C0C_NUM_LS_GPRS(ctx->cs_shader->bc.ngpr));
-       }
-
-       ///maybe we can use it later
-       evergreen_reg_set(res, R_0286C8_SPI_THREAD_GROUPING, 0);
-       ///maybe we can use it later
-       evergreen_reg_set(res, R_008C14_SQ_GLOBAL_GPR_RESOURCE_MGMT_2, 0);
-
-       evergreen_reg_set(res, R_0288D4_SQ_PGM_RESOURCES_LS,
-               S_0288D4_NUM_GPRS(ctx->cs_shader->bc.ngpr)
-               | S_0288D4_STACK_SIZE(ctx->cs_shader->bc.nstack));
-       evergreen_reg_set(res, R_0288D8_SQ_PGM_RESOURCES_LS_2, 0);
-
-       evergreen_reg_set(res, R_0288D0_SQ_PGM_START_LS, 0);
-       res->bo = ctx->cs_shader->shader_code_bo;
-       res->usage = RADEON_USAGE_READ;
-       res->coher_bo_size = ctx->cs_shader->bc.ndw*4;
-
-       r600_inval_shader_cache(ctx);
+       COMPUTE_DBG(ctx->screen, "*** evergreen_bind_compute_state\n");
 
+       ctx->cs_shader_state.shader = (struct r600_pipe_compute *)state;
 }
 
 /* The kernel parameters are stored a vtx buffer (ID=0), besides the explicit
- * kernel parameters there are inplicit parameters that need to be stored
+ * kernel parameters there are implicit parameters that need to be stored
  * in the vertex buffer as well.  Here is how these parameters are organized in
  * the buffer:
  *
@@ -212,30 +282,35 @@ void evergreen_compute_upload_input(
        const void *input)
 {
        struct r600_context *ctx = (struct r600_context *)ctx_;
-       int i;
-       unsigned kernel_parameters_offset_bytes = 36;
+       struct r600_pipe_compute *shader = ctx->cs_shader_state.shader;
+       unsigned i;
+       /* We need to reserve 9 dwords (36 bytes) for implicit kernel
+        * parameters.
+        */
+       unsigned input_size = shader->input_size + 36;
        uint32_t * num_work_groups_start;
        uint32_t * global_size_start;
        uint32_t * local_size_start;
        uint32_t * kernel_parameters_start;
+       struct pipe_box box;
+       struct pipe_transfer *transfer = NULL;
 
-       if (ctx->cs_shader->input_size == 0) {
+       if (shader->input_size == 0) {
                return;
        }
 
-       if (!ctx->cs_shader->kernel_param) {
-               unsigned buffer_size = ctx->cs_shader->input_size;
-
+       if (!shader->kernel_param) {
                /* Add space for the grid dimensions */
-               buffer_size += kernel_parameters_offset_bytes * sizeof(uint);
-               ctx->cs_shader->kernel_param =
-                               r600_compute_buffer_alloc_vram(ctx->screen,
-                                               buffer_size);
+               shader->kernel_param = (struct r600_resource *)
+                       pipe_buffer_create(ctx_->screen, PIPE_BIND_CUSTOM,
+                                       PIPE_USAGE_IMMUTABLE, input_size);
        }
 
-       num_work_groups_start = ctx->ws->buffer_map(
-                       ctx->cs_shader->kernel_param->cs_buf,
-                       ctx->cs, PIPE_TRANSFER_WRITE);
+       u_box_1d(0, input_size, &box);
+       num_work_groups_start = ctx_->transfer_map(ctx_,
+                       (struct pipe_resource*)shader->kernel_param,
+                       0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE,
+                       &box, &transfer);
        global_size_start = num_work_groups_start + (3 * (sizeof(uint) /4));
        local_size_start = global_size_start + (3 * (sizeof(uint)) / 4);
        kernel_parameters_start = local_size_start + (3 * (sizeof(uint)) / 4);
@@ -252,56 +327,41 @@ void evergreen_compute_upload_input(
        memcpy(local_size_start, block_layout, 3 * sizeof(uint));
 
        /* Copy the kernel inputs */
-       memcpy(kernel_parameters_start, input, ctx->cs_shader->input_size);
+       memcpy(kernel_parameters_start, input, shader->input_size);
 
-       for (i = 0; i < (kernel_parameters_offset_bytes / 4) +
-                                       (ctx->cs_shader->input_size / 4); i++) {
-               COMPUTE_DBG("input %i : %i\n", i,
+       for (i = 0; i < (input_size / 4); i++) {
+               COMPUTE_DBG(ctx->screen, "input %i : %u\n", i,
                        ((unsigned*)num_work_groups_start)[i]);
        }
 
-       ctx->ws->buffer_unmap(ctx->cs_shader->kernel_param->cs_buf);
+       ctx_->transfer_unmap(ctx_, transfer);
 
-       ///ID=0 is reserved for the parameters
-       evergreen_set_vtx_resource(ctx->cs_shader,
-               ctx->cs_shader->kernel_param, 0, 0, 0);
-       ///ID=0 is reserved for parameters
-       evergreen_set_const_cache(ctx->cs_shader, 0,
-               ctx->cs_shader->kernel_param, ctx->cs_shader->input_size, 0);
+       /* ID=0 is reserved for the parameters */
+       evergreen_cs_set_constant_buffer(ctx, 0, 0, input_size,
+                       (struct pipe_resource*)shader->kernel_param);
 }
 
-void evergreen_direct_dispatch(
-               struct pipe_context *ctx_,
+static void evergreen_emit_direct_dispatch(
+               struct r600_context *rctx,
                const uint *block_layout, const uint *grid_layout)
 {
-       /* This struct r600_context* must be called rctx, because the
-        * r600_pipe_state_add_reg macro assumes there is a local variable
-        * of type struct r600_context* called rctx.
-        */
-       struct r600_context *rctx = (struct r600_context *)ctx_;
-
        int i;
-
-       struct evergreen_compute_resource* res = get_empty_res(rctx->cs_shader,
-               COMPUTE_RESOURCE_DISPATCH, 0);
-
-       /* Set CB_TARGET_MASK */
-       evergreen_reg_set(res, R_028238_CB_TARGET_MASK, rctx->compute_cb_target_mask);
-
-       evergreen_reg_set(res, R_008958_VGT_PRIMITIVE_TYPE, V_008958_DI_PT_POINTLIST);
-
-       evergreen_reg_set(res, R_00899C_VGT_COMPUTE_START_X, 0);
-       evergreen_reg_set(res, R_0089A0_VGT_COMPUTE_START_Y, 0);
-       evergreen_reg_set(res, R_0089A4_VGT_COMPUTE_START_Z, 0);
-
-       evergreen_reg_set(res, R_0286EC_SPI_COMPUTE_NUM_THREAD_X, block_layout[0]);
-       evergreen_reg_set(res, R_0286F0_SPI_COMPUTE_NUM_THREAD_Y, block_layout[1]);
-       evergreen_reg_set(res, R_0286F4_SPI_COMPUTE_NUM_THREAD_Z, block_layout[2]);
-
+       struct radeon_winsys_cs *cs = rctx->b.rings.gfx.cs;
+       struct r600_pipe_compute *shader = rctx->cs_shader_state.shader;
+       unsigned num_waves;
+       unsigned num_pipes = rctx->screen->b.info.r600_max_pipes;
+       unsigned wave_divisor = (16 * num_pipes);
        int group_size = 1;
-
        int grid_size = 1;
+       unsigned lds_size = shader->local_size / 4 +
+#if HAVE_LLVM < 0x0306
+               shader->active_kernel->bc.nlds_dw;
+#else
+               shader->bc.nlds_dw;
+#endif
 
+
+       /* Calculate group_size/grid_size */
        for (i = 0; i < 3; i++) {
                group_size *= block_layout[i];
        }
@@ -310,110 +370,197 @@ void evergreen_direct_dispatch(
                grid_size *= grid_layout[i];
        }
 
-       evergreen_reg_set(res, R_008970_VGT_NUM_INDICES, group_size);
-       evergreen_reg_set(res, R_0089AC_VGT_COMPUTE_THREAD_GROUP_SIZE, group_size);
+       /* num_waves = ceil((tg_size.x * tg_size.y, tg_size.z) / (16 * num_pipes)) */
+       num_waves = (block_layout[0] * block_layout[1] * block_layout[2] +
+                       wave_divisor - 1) / wave_divisor;
+
+       COMPUTE_DBG(rctx->screen, "Using %u pipes, "
+                               "%u wavefronts per thread block, "
+                               "allocating %u dwords lds.\n",
+                               num_pipes, num_waves, lds_size);
 
-       evergreen_emit_raw_value(res, PKT3C(PKT3_DISPATCH_DIRECT, 3, 0));
-       evergreen_emit_raw_value(res, grid_layout[0]);
-       evergreen_emit_raw_value(res, grid_layout[1]);
-       evergreen_emit_raw_value(res, grid_layout[2]);
-       ///VGT_DISPATCH_INITIATOR = COMPUTE_SHADER_EN
-       evergreen_emit_raw_value(res, 1);
+       r600_write_config_reg(cs, R_008970_VGT_NUM_INDICES, group_size);
+
+       r600_write_config_reg_seq(cs, R_00899C_VGT_COMPUTE_START_X, 3);
+       radeon_emit(cs, 0); /* R_00899C_VGT_COMPUTE_START_X */
+       radeon_emit(cs, 0); /* R_0089A0_VGT_COMPUTE_START_Y */
+       radeon_emit(cs, 0); /* R_0089A4_VGT_COMPUTE_START_Z */
+
+       r600_write_config_reg(cs, R_0089AC_VGT_COMPUTE_THREAD_GROUP_SIZE,
+                                                               group_size);
+
+       r600_write_compute_context_reg_seq(cs, R_0286EC_SPI_COMPUTE_NUM_THREAD_X, 3);
+       radeon_emit(cs, block_layout[0]); /* R_0286EC_SPI_COMPUTE_NUM_THREAD_X */
+       radeon_emit(cs, block_layout[1]); /* R_0286F0_SPI_COMPUTE_NUM_THREAD_Y */
+       radeon_emit(cs, block_layout[2]); /* R_0286F4_SPI_COMPUTE_NUM_THREAD_Z */
+
+       if (rctx->b.chip_class < CAYMAN) {
+               assert(lds_size <= 8192);
+       } else {
+               /* Cayman appears to have a slightly smaller limit, see the
+                * value of CM_R_0286FC_SPI_LDS_MGMT.NUM_LS_LDS */
+               assert(lds_size <= 8160);
+       }
+
+       r600_write_compute_context_reg(cs, CM_R_0288E8_SQ_LDS_ALLOC,
+                                       lds_size | (num_waves << 14));
+
+       /* Dispatch packet */
+       radeon_emit(cs, PKT3C(PKT3_DISPATCH_DIRECT, 3, 0));
+       radeon_emit(cs, grid_layout[0]);
+       radeon_emit(cs, grid_layout[1]);
+       radeon_emit(cs, grid_layout[2]);
+       /* VGT_DISPATCH_INITIATOR = COMPUTE_SHADER_EN */
+       radeon_emit(cs, 1);
 }
 
-static void compute_emit_cs(struct r600_context *ctx)
+static void compute_emit_cs(struct r600_context *ctx, const uint *block_layout,
+               const uint *grid_layout)
 {
-       struct radeon_winsys_cs *cs = ctx->cs;
-       int i;
-
-       struct r600_resource *onebo = NULL;
-       struct r600_pipe_state *cb_state;
+       struct radeon_winsys_cs *cs = ctx->b.rings.gfx.cs;
+       unsigned i;
 
-       /* Initialize all the registers common to both 3D and compute.  Some
-        * 3D only register will be initialized by this atom as well, but
-        * this is OK for now.
-        *
-        * See evergreen_init_atom_start_cs() or cayman_init_atom_start_cs() in
-        * evergreen_state.c for the list of registers that are intialized by
-        * the start_cs_cmd atom.
-        */
-       r600_emit_atom(ctx, &ctx->start_cs_cmd.atom);
+       /* make sure that the gfx ring is only one active */
+       if (ctx->b.rings.dma.cs && ctx->b.rings.dma.cs->cdw) {
+               ctx->b.rings.dma.flush(ctx, RADEON_FLUSH_ASYNC, NULL);
+       }
 
-       /* Initialize all the compute specific registers.
+       /* Initialize all the compute-related registers.
         *
         * See evergreen_init_atom_start_compute_cs() in this file for the list
-        * of registers initialized by the start_compuet_cs_cmd atom.
+        * of registers initialized by the start_compute_cs_cmd atom.
         */
-       r600_emit_atom(ctx, &ctx->start_compute_cs_cmd.atom);
-
-       /* Emit cb_state */
-        cb_state = ctx->states[R600_PIPE_STATE_FRAMEBUFFER];
-       r600_context_pipe_state_emit(ctx, cb_state, RADEON_CP_PACKET3_COMPUTE_MODE);
-
-       for (i = 0; i < get_compute_resource_num(); i++) {
-               if (ctx->cs_shader->resources[i].enabled) {
-                       int j;
-                       COMPUTE_DBG("resnum: %i, cdw: %i\n", i, cs->cdw);
-
-                       for (j = 0; j < ctx->cs_shader->resources[i].cs_end; j++) {
-                               if (ctx->cs_shader->resources[i].do_reloc[j]) {
-                                       assert(ctx->cs_shader->resources[i].bo);
-                                       evergreen_emit_ctx_reloc(ctx,
-                                               ctx->cs_shader->resources[i].bo,
-                                               ctx->cs_shader->resources[i].usage);
-                               }
-
-                               cs->buf[cs->cdw++] = ctx->cs_shader->resources[i].cs[j];
-                       }
+       r600_emit_command_buffer(cs, &ctx->start_compute_cs_cmd);
+
+       ctx->b.flags |= R600_CONTEXT_WAIT_3D_IDLE | R600_CONTEXT_FLUSH_AND_INV;
+       r600_flush_emit(ctx);
+
+       /* Emit colorbuffers. */
+       /* XXX support more than 8 colorbuffers (the offsets are not a multiple of 0x3C for CB8-11) */
+       for (i = 0; i < 8 && i < ctx->framebuffer.state.nr_cbufs; i++) {
+               struct r600_surface *cb = (struct r600_surface*)ctx->framebuffer.state.cbufs[i];
+               unsigned reloc = r600_context_bo_reloc(&ctx->b, &ctx->b.rings.gfx,
+                                                      (struct r600_resource*)cb->base.texture,
+                                                      RADEON_USAGE_READWRITE,
+                                                      RADEON_PRIO_SHADER_RESOURCE_RW);
+
+               r600_write_compute_context_reg_seq(cs, R_028C60_CB_COLOR0_BASE + i * 0x3C, 7);
+               radeon_emit(cs, cb->cb_color_base);     /* R_028C60_CB_COLOR0_BASE */
+               radeon_emit(cs, cb->cb_color_pitch);    /* R_028C64_CB_COLOR0_PITCH */
+               radeon_emit(cs, cb->cb_color_slice);    /* R_028C68_CB_COLOR0_SLICE */
+               radeon_emit(cs, cb->cb_color_view);     /* R_028C6C_CB_COLOR0_VIEW */
+               radeon_emit(cs, cb->cb_color_info);     /* R_028C70_CB_COLOR0_INFO */
+               radeon_emit(cs, cb->cb_color_attrib);   /* R_028C74_CB_COLOR0_ATTRIB */
+               radeon_emit(cs, cb->cb_color_dim);              /* R_028C78_CB_COLOR0_DIM */
+
+               radeon_emit(cs, PKT3(PKT3_NOP, 0, 0)); /* R_028C60_CB_COLOR0_BASE */
+               radeon_emit(cs, reloc);
+
+               if (!ctx->keep_tiling_flags) {
+                       radeon_emit(cs, PKT3(PKT3_NOP, 0, 0)); /* R_028C70_CB_COLOR0_INFO */
+                       radeon_emit(cs, reloc);
+               }
 
-                       if (ctx->cs_shader->resources[i].bo) {
-                               onebo = ctx->cs_shader->resources[i].bo;
-                               evergreen_emit_ctx_reloc(ctx,
-                                       ctx->cs_shader->resources[i].bo,
-                                       ctx->cs_shader->resources[i].usage);
-
-                               ///special case for textures
-                               if (ctx->cs_shader->resources[i].do_reloc
-                                       [ctx->cs_shader->resources[i].cs_end] == 2) {
-                                       evergreen_emit_ctx_reloc(ctx,
-                                               ctx->cs_shader->resources[i].bo,
-                                               ctx->cs_shader->resources[i].usage);
-                               }
-                       }
+               radeon_emit(cs, PKT3(PKT3_NOP, 0, 0)); /* R_028C74_CB_COLOR0_ATTRIB */
+               radeon_emit(cs, reloc);
+       }
+       if (ctx->keep_tiling_flags) {
+               for (; i < 8 ; i++) {
+                       r600_write_compute_context_reg(cs, R_028C70_CB_COLOR0_INFO + i * 0x3C,
+                                                      S_028C70_FORMAT(V_028C70_COLOR_INVALID));
+               }
+               for (; i < 12; i++) {
+                       r600_write_compute_context_reg(cs, R_028E50_CB_COLOR8_INFO + (i - 8) * 0x1C,
+                                                      S_028C70_FORMAT(V_028C70_COLOR_INVALID));
                }
        }
 
-       /* r600_flush_framebuffer() updates the cb_flush_flags and then
-        * calls r600_emit_atom() on the ctx->surface_sync_cmd.atom, which emits
-        * a SURFACE_SYNC packet via r600_emit_surface_sync().
-        *
-        * XXX r600_emit_surface_sync() hardcodes the CP_COHER_SIZE to
-        * 0xffffffff, so we will need to add a field to struct
-        * r600_surface_sync_cmd if we want to manually set this value.
+       /* Set CB_TARGET_MASK  XXX: Use cb_misc_state */
+       r600_write_compute_context_reg(cs, R_028238_CB_TARGET_MASK,
+                                       ctx->compute_cb_target_mask);
+
+
+       /* Emit vertex buffer state */
+       ctx->cs_vertex_buffer_state.atom.num_dw = 12 * util_bitcount(ctx->cs_vertex_buffer_state.dirty_mask);
+       r600_emit_atom(ctx, &ctx->cs_vertex_buffer_state.atom);
+
+       /* Emit constant buffer state */
+       r600_emit_atom(ctx, &ctx->constbuf_state[PIPE_SHADER_COMPUTE].atom);
+
+       /* Emit compute shader state */
+       r600_emit_atom(ctx, &ctx->cs_shader_state.atom);
+
+       /* Emit dispatch state and dispatch packet */
+       evergreen_emit_direct_dispatch(ctx, block_layout, grid_layout);
+
+       /* XXX evergreen_flush_emit() hardcodes the CP_COHER_SIZE to 0xffffffff
         */
-       r600_flush_framebuffer(ctx, true /* Flush now */);
+       ctx->b.flags |= R600_CONTEXT_INV_CONST_CACHE |
+                     R600_CONTEXT_INV_VERTEX_CACHE |
+                     R600_CONTEXT_INV_TEX_CACHE;
+       r600_flush_emit(ctx);
+       ctx->b.flags = 0;
+
+       if (ctx->b.chip_class >= CAYMAN) {
+               cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
+               cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CS_PARTIAL_FLUSH) | EVENT_INDEX(4);
+               /* DEALLOC_STATE prevents the GPU from hanging when a
+                * SURFACE_SYNC packet is emitted some time after a DISPATCH_DIRECT
+                * with any of the CB*_DEST_BASE_ENA or DB_DEST_BASE_ENA bits set.
+                */
+               cs->buf[cs->cdw++] = PKT3C(PKT3_DEALLOC_STATE, 0, 0);
+               cs->buf[cs->cdw++] = 0;
+       }
 
 #if 0
-       COMPUTE_DBG("cdw: %i\n", cs->cdw);
+       COMPUTE_DBG(ctx->screen, "cdw: %i\n", cs->cdw);
        for (i = 0; i < cs->cdw; i++) {
-               COMPUTE_DBG("%4i : 0x%08X\n", i, ctx->cs->buf[i]);
+               COMPUTE_DBG(ctx->screen, "%4i : 0x%08X\n", i, cs->buf[i]);
        }
 #endif
 
-       ctx->ws->cs_flush(ctx->cs, RADEON_FLUSH_ASYNC | RADEON_FLUSH_COMPUTE);
-
-       ctx->pm4_dirty_cdwords = 0;
-       ctx->flags = 0;
-
-       COMPUTE_DBG("shader started\n");
-
-       ctx->ws->buffer_wait(onebo->buf, 0);
+}
 
-       COMPUTE_DBG("...\n");
 
-       ctx->streamout_start = TRUE;
-       ctx->streamout_append_bitmask = ~0;
+/**
+ * Emit function for r600_cs_shader_state atom
+ */
+void evergreen_emit_cs_shader(
+               struct r600_context *rctx,
+               struct r600_atom *atom)
+{
+       struct r600_cs_shader_state *state =
+                                       (struct r600_cs_shader_state*)atom;
+       struct r600_pipe_compute *shader = state->shader;
+       struct radeon_winsys_cs *cs = rctx->b.rings.gfx.cs;
+       uint64_t va;
+       struct r600_resource *code_bo;
+       unsigned ngpr, nstack;
+
+#if HAVE_LLVM < 0x0306
+       struct r600_kernel *kernel = &shader->kernels[state->kernel_index];
+       code_bo = kernel->code_bo;
+       va = kernel->code_bo->gpu_address;
+       ngpr = kernel->bc.ngpr;
+       nstack = kernel->bc.nstack;
+#else
+       code_bo = shader->code_bo;
+       va = shader->code_bo->gpu_address + state->pc;
+       ngpr = shader->bc.ngpr;
+       nstack = shader->bc.nstack;
+#endif
 
+       r600_write_compute_context_reg_seq(cs, R_0288D0_SQ_PGM_START_LS, 3);
+       radeon_emit(cs, va >> 8); /* R_0288D0_SQ_PGM_START_LS */
+       radeon_emit(cs,           /* R_0288D4_SQ_PGM_RESOURCES_LS */
+                       S_0288D4_NUM_GPRS(ngpr)
+                       | S_0288D4_STACK_SIZE(nstack));
+       radeon_emit(cs, 0);     /* R_0288D8_SQ_PGM_RESOURCES_LS_2 */
+
+       radeon_emit(cs, PKT3C(PKT3_NOP, 0, 0));
+       radeon_emit(cs, r600_context_bo_reloc(&rctx->b, &rctx->b.rings.gfx,
+                                             code_bo, RADEON_USAGE_READ,
+                                             RADEON_PRIO_SHADER_DATA));
 }
 
 static void evergreen_launch_grid(
@@ -421,24 +568,57 @@ static void evergreen_launch_grid(
                const uint *block_layout, const uint *grid_layout,
                uint32_t pc, const void *input)
 {
-       COMPUTE_DBG("PC: %i\n", pc);
-
        struct r600_context *ctx = (struct r600_context *)ctx_;
-       unsigned num_waves;
-       unsigned num_pipes = ctx->screen->info.r600_max_pipes;
-       unsigned wave_divisor = (16 * num_pipes);
+#ifdef HAVE_OPENCL
+       struct r600_pipe_compute *shader = ctx->cs_shader_state.shader;
+       boolean use_kill;
+
+#if HAVE_LLVM < 0x0306
+       struct r600_kernel *kernel = &shader->kernels[pc];
+       (void)use_kill;
+        if (!kernel->code_bo) {
+                void *p;
+                struct r600_bytecode *bc = &kernel->bc;
+                LLVMModuleRef mod = kernel->llvm_module;
+                boolean use_kill = false;
+                bool dump = (ctx->screen->b.debug_flags & DBG_CS) != 0;
+                unsigned use_sb = ctx->screen->b.debug_flags & DBG_SB_CS;
+                unsigned sb_disasm = use_sb ||
+                        (ctx->screen->b.debug_flags & DBG_SB_DISASM);
+
+                r600_bytecode_init(bc, ctx->b.chip_class, ctx->b.family,
+                           ctx->screen->has_compressed_msaa_texturing);
+                bc->type = TGSI_PROCESSOR_COMPUTE;
+                bc->isa = ctx->isa;
+                r600_llvm_compile(mod, ctx->b.family, bc, &use_kill, dump);
+
+                if (dump && !sb_disasm) {
+                        r600_bytecode_disasm(bc);
+                } else if ((dump && sb_disasm) || use_sb) {
+                        if (r600_sb_bytecode_process(ctx, bc, NULL, dump, use_sb))
+                                R600_ERR("r600_sb_bytecode_process failed!\n");
+                }
+
+                kernel->code_bo = r600_compute_buffer_alloc_vram(ctx->screen,
+                                                        kernel->bc.ndw * 4);
+                p = r600_buffer_map_sync_with_rings(&ctx->b, kernel->code_bo, PIPE_TRANSFER_WRITE);
+                memcpy(p, kernel->bc.bytecode, kernel->bc.ndw * 4);
+                ctx->b.ws->buffer_unmap(kernel->code_bo->cs_buf);
+        }
+       shader->active_kernel = kernel;
+       ctx->cs_shader_state.kernel_index = pc;
+#else
+       ctx->cs_shader_state.pc = pc;
+       /* Get the config information for this kernel. */
+       r600_shader_binary_read_config(&shader->binary, &shader->bc, pc, &use_kill);
+#endif
+#endif
 
-       /* num_waves = ceil((tg_size.x * tg_size.y, tg_size.z) / (16 * num_pipes)) */
-       num_waves = (block_layout[0] * block_layout[1] * block_layout[2] +
-                       wave_divisor - 1) / wave_divisor;
+       COMPUTE_DBG(ctx->screen, "*** evergreen_launch_grid: pc = %u\n", pc);
 
-       COMPUTE_DBG("Using %u pipes, there are %u wavefronts per thread block\n",
-                                                       num_pipes, num_waves);
 
-       evergreen_set_lds(ctx->cs_shader, 0, 0, num_waves);
        evergreen_compute_upload_input(ctx_, block_layout, grid_layout, input);
-       evergreen_direct_dispatch(ctx_, block_layout, grid_layout);
-       compute_emit_cs(ctx);
+       compute_emit_cs(ctx, block_layout, grid_layout);
 }
 
 static void evergreen_set_compute_resources(struct pipe_context * ctx_,
@@ -448,67 +628,51 @@ static void evergreen_set_compute_resources(struct pipe_context * ctx_,
        struct r600_context *ctx = (struct r600_context *)ctx_;
        struct r600_surface **resources = (struct r600_surface **)surfaces;
 
-       COMPUTE_DBG("*** evergreen_set_compute_resources: start = %u count = %u\n",
+       COMPUTE_DBG(ctx->screen, "*** evergreen_set_compute_resources: start = %u count = %u\n",
                        start, count);
 
-       for (int i = 0; i < count; i++) {
+       for (unsigned i = 0; i < count; i++) {
+               /* The First two vertex buffers are reserved for parameters and
+                * global buffers. */
+               unsigned vtx_id = 2 + i;
                if (resources[i]) {
                        struct r600_resource_global *buffer =
-                               (struct r600_resource_global*)resources[i]->base.texture;
+                               (struct r600_resource_global*)
+                               resources[i]->base.texture;
                        if (resources[i]->base.writable) {
                                assert(i+1 < 12);
-                               struct r600_resource_global *buffer =
-                                       (struct r600_resource_global*)
-                                       resources[i]->base.texture;
 
-                               evergreen_set_rat(ctx->cs_shader, i+1,
+                               evergreen_set_rat(ctx->cs_shader_state.shader, i+1,
                                (struct r600_resource *)resources[i]->base.texture,
                                buffer->chunk->start_in_dw*4,
                                resources[i]->base.texture->width0);
                        }
 
-                       evergreen_set_vtx_resource(ctx->cs_shader,
-                               (struct r600_resource *)resources[i]->base.texture, i+2,
-                                buffer->chunk->start_in_dw*4, resources[i]->base.writable);
+                       evergreen_cs_set_vertex_buffer(ctx, vtx_id,
+                                       buffer->chunk->start_in_dw * 4,
+                                       resources[i]->base.texture);
                }
        }
-
 }
 
-static void evergreen_set_cs_sampler_view(struct pipe_context *ctx_,
+void evergreen_set_cs_sampler_view(struct pipe_context *ctx_,
                unsigned start_slot, unsigned count,
                struct pipe_sampler_view **views)
 {
-       struct r600_context *ctx = (struct r600_context *)ctx_;
        struct r600_pipe_sampler_view **resource =
                (struct r600_pipe_sampler_view **)views;
 
-       for (int i = 0; i < count; i++) {
+       for (unsigned i = 0; i < count; i++)    {
                if (resource[i]) {
                        assert(i+1 < 12);
+                       /* XXX: Implement */
+                       assert(!"Compute samplers not implemented.");
                        ///FETCH0 = VTX0 (param buffer),
                        //FETCH1 = VTX1 (global buffer pool), FETCH2... = TEX
-                       evergreen_set_tex_resource(ctx->cs_shader, resource[i], i+2);
                }
        }
 }
 
-static void evergreen_bind_compute_sampler_states(
-       struct pipe_context *ctx_,
-       unsigned start_slot,
-       unsigned num_samplers,
-       void **samplers_)
-{
-       struct r600_context *ctx = (struct r600_context *)ctx_;
-       struct compute_sampler_state ** samplers =
-               (struct compute_sampler_state **)samplers_;
-
-       for (int i = 0; i < num_samplers; i++) {
-               if (samplers[i]) {
-                       evergreen_set_sampler_resource(ctx->cs_shader, samplers[i], i);
-               }
-       }
-}
 
 static void evergreen_set_global_binding(
        struct pipe_context *ctx_, unsigned first, unsigned n,
@@ -519,8 +683,9 @@ static void evergreen_set_global_binding(
        struct compute_memory_pool *pool = ctx->screen->global_pool;
        struct r600_resource_global **buffers =
                (struct r600_resource_global **)resources;
+       unsigned i;
 
-       COMPUTE_DBG("*** evergreen_set_global_binding first = %u n = %u\n",
+       COMPUTE_DBG(ctx->screen, "*** evergreen_set_global_binding first = %u n = %u\n",
                        first, n);
 
        if (!resources) {
@@ -528,18 +693,36 @@ static void evergreen_set_global_binding(
                return;
        }
 
-       compute_memory_finalize_pending(pool, ctx_);
+       /* We mark these items for promotion to the pool if they
+        * aren't already there */
+       for (i = first; i < first + n; i++) {
+               struct compute_memory_item *item = buffers[i]->chunk;
+
+               if (!is_item_in_pool(item))
+                       buffers[i]->chunk->status |= ITEM_FOR_PROMOTING;
+       }
 
-       for (int i = 0; i < n; i++)
+       if (compute_memory_finalize_pending(pool, ctx_) == -1) {
+               /* XXX: Unset */
+               return;
+       }
+
+       for (i = first; i < first + n; i++)
        {
+               uint32_t buffer_offset;
+               uint32_t handle;
                assert(resources[i]->target == PIPE_BUFFER);
                assert(resources[i]->bind & PIPE_BIND_GLOBAL);
 
-               *(handles[i]) = buffers[i]->chunk->start_in_dw * 4;
+               buffer_offset = util_le32_to_cpu(*(handles[i]));
+               handle = buffer_offset + buffers[i]->chunk->start_in_dw * 4;
+
+               *(handles[i]) = util_cpu_to_le32(handle);
        }
 
-       evergreen_set_rat(ctx->cs_shader, 0, pool->bo, 0, pool->size_in_dw * 4);
-       evergreen_set_vtx_resource(ctx->cs_shader, pool->bo, 1, 0, 1);
+       evergreen_set_rat(ctx->cs_shader_state.shader, 0, pool->bo, 0, pool->size_in_dw * 4);
+       evergreen_cs_set_vertex_buffer(ctx, 1, 0,
+                               (struct pipe_resource*)pool->bo);
 }
 
 /**
@@ -559,14 +742,22 @@ void evergreen_init_atom_start_compute_cs(struct r600_context *ctx)
        int num_threads;
        int num_stack_entries;
 
-       /* We aren't passing the EMIT_EARLY flag as the third argument
-        * because we will be emitting this atom manually in order to
-        * ensure it gets emitted after the start_cs_cmd atom.
+       /* since all required registers are initialised in the
+        * start_compute_cs_cmd atom, we can EMIT_EARLY here.
         */
-       r600_init_command_buffer(cb, 256, 0);
+       r600_init_command_buffer(cb, 256);
        cb->pkt_flags = RADEON_CP_PACKET3_COMPUTE_MODE;
 
-       switch (ctx->family) {
+       /* This must be first. */
+       r600_store_value(cb, PKT3(PKT3_CONTEXT_CONTROL, 1, 0));
+       r600_store_value(cb, 0x80000000);
+       r600_store_value(cb, 0x80000000);
+
+       /* We're setting config registers here. */
+       r600_store_value(cb, PKT3(PKT3_EVENT_WRITE, 0, 0));
+       r600_store_value(cb, EVENT_TYPE(EVENT_TYPE_CS_PARTIAL_FLUSH) | EVENT_INDEX(4));
+
+       switch (ctx->b.family) {
        case CHIP_CEDAR:
        default:
                num_threads = 128;
@@ -612,7 +803,18 @@ void evergreen_init_atom_start_compute_cs(struct r600_context *ctx)
        }
 
        /* Config Registers */
-       if (ctx->chip_class < CAYMAN) {
+       if (ctx->b.chip_class < CAYMAN)
+               evergreen_init_common_regs(cb, ctx->b.chip_class, ctx->b.family,
+                                          ctx->screen->b.info.drm_minor);
+       else
+               cayman_init_common_regs(cb, ctx->b.chip_class, ctx->b.family,
+                                       ctx->screen->b.info.drm_minor);
+
+       /* The primitive type always needs to be POINTLIST for compute. */
+       r600_store_config_reg(cb, R_008958_VGT_PRIMITIVE_TYPE,
+                                               V_008958_DI_PT_POINTLIST);
+
+       if (ctx->b.chip_class < CAYMAN) {
 
                /* These registers control which simds can be used by each stage.
                 * The default for these registers is 0xffffffff, which means
@@ -656,10 +858,24 @@ void evergreen_init_atom_start_compute_cs(struct r600_context *ctx)
                r600_store_value(cb,
                        S_008C28_NUM_LS_STACK_ENTRIES(num_stack_entries));
        }
+       /* Give the compute shader all the available LDS space.
+        * NOTE: This only sets the maximum number of dwords that a compute
+        * shader can allocate.  When a shader is executed, we still need to
+        * allocate the appropriate amount of LDS dwords using the
+        * CM_R_0288E8_SQ_LDS_ALLOC register.
+        */
+       if (ctx->b.chip_class < CAYMAN) {
+               r600_store_config_reg(cb, R_008E2C_SQ_LDS_RESOURCE_MGMT,
+                       S_008E2C_NUM_PS_LDS(0x0000) | S_008E2C_NUM_LS_LDS(8192));
+       } else {
+               r600_store_context_reg(cb, CM_R_0286FC_SPI_LDS_MGMT,
+                       S_0286FC_NUM_PS_LDS(0) |
+                       S_0286FC_NUM_LS_LDS(255)); /* 255 * 32 = 8160 dwords */
+       }
 
        /* Context Registers */
 
-       if (ctx->chip_class < CAYMAN) {
+       if (ctx->b.chip_class < CAYMAN) {
                /* workaround for hw issues with dyn gpr - must set all limits
                 * to 240 instead of 0, 0x1e == 240 / 8
                 */
@@ -703,34 +919,36 @@ void evergreen_init_atom_start_compute_cs(struct r600_context *ctx)
 
 void evergreen_init_compute_state_functions(struct r600_context *ctx)
 {
-       ctx->context.create_compute_state = evergreen_create_compute_state;
-       ctx->context.delete_compute_state = evergreen_delete_compute_state;
-       ctx->context.bind_compute_state = evergreen_bind_compute_state;
+       ctx->b.b.create_compute_state = evergreen_create_compute_state;
+       ctx->b.b.delete_compute_state = evergreen_delete_compute_state;
+       ctx->b.b.bind_compute_state = evergreen_bind_compute_state;
 //      ctx->context.create_sampler_view = evergreen_compute_create_sampler_view;
-       ctx->context.set_compute_resources = evergreen_set_compute_resources;
-       ctx->context.set_compute_sampler_views = evergreen_set_cs_sampler_view;
-       ctx->context.bind_compute_sampler_states = evergreen_bind_compute_sampler_states;
-       ctx->context.set_global_binding = evergreen_set_global_binding;
-       ctx->context.launch_grid = evergreen_launch_grid;
-}
+       ctx->b.b.set_compute_resources = evergreen_set_compute_resources;
+       ctx->b.b.set_global_binding = evergreen_set_global_binding;
+       ctx->b.b.launch_grid = evergreen_launch_grid;
 
+}
 
 struct pipe_resource *r600_compute_global_buffer_create(
        struct pipe_screen *screen,
        const struct pipe_resource *templ)
 {
+       struct r600_resource_global* result = NULL;
+       struct r600_screen* rscreen = NULL;
+       int size_in_dw = 0;
+
        assert(templ->target == PIPE_BUFFER);
        assert(templ->bind & PIPE_BIND_GLOBAL);
        assert(templ->array_size == 1 || templ->array_size == 0);
        assert(templ->depth0 == 1 || templ->depth0 == 0);
        assert(templ->height0 == 1 || templ->height0 == 0);
 
-       struct r600_resource_global* result = (struct r600_resource_global*)
-               CALLOC(sizeof(struct r600_resource_global), 1);
-       struct r600_screen* rscreen = (struct r600_screen*)screen;
+       result = (struct r600_resource_global*)
+       CALLOC(sizeof(struct r600_resource_global), 1);
+       rscreen = (struct r600_screen*)screen;
 
-       COMPUTE_DBG("*** r600_compute_global_buffer_create\n");
-       COMPUTE_DBG("width = %u array_size = %u\n", templ->width0,
+       COMPUTE_DBG(rscreen, "*** r600_compute_global_buffer_create\n");
+       COMPUTE_DBG(rscreen, "width = %u array_size = %u\n", templ->width0,
                        templ->array_size);
 
        result->base.b.vtbl = &r600_global_buffer_vtbl;
@@ -738,7 +956,7 @@ struct pipe_resource *r600_compute_global_buffer_create(
        result->base.b.b = *templ;
        pipe_reference_init(&result->base.b.b.reference, 1);
 
-       int size_in_dw = (templ->width0+3) / 4;
+       size_in_dw = (templ->width0+3) / 4;
 
        result->chunk = compute_memory_alloc(rscreen->global_pool, size_in_dw);
 
@@ -755,11 +973,14 @@ void r600_compute_global_buffer_destroy(
        struct pipe_screen *screen,
        struct pipe_resource *res)
 {
+       struct r600_resource_global* buffer = NULL;
+       struct r600_screen* rscreen = NULL;
+
        assert(res->target == PIPE_BUFFER);
        assert(res->bind & PIPE_BIND_GLOBAL);
 
-       struct r600_resource_global* buffer = (struct r600_resource_global*)res;
-       struct r600_screen* rscreen = (struct r600_screen*)screen;
+       buffer = (struct r600_resource_global*)res;
+       rscreen = (struct r600_screen*)screen;
 
        compute_memory_free(rscreen->global_pool, buffer->chunk->id);
 
@@ -767,82 +988,73 @@ void r600_compute_global_buffer_destroy(
        free(res);
 }
 
-voidr600_compute_global_transfer_map(
+void *r600_compute_global_transfer_map(
        struct pipe_context *ctx_,
-       struct pipe_transfer* transfer)
+       struct pipe_resource *resource,
+       unsigned level,
+       unsigned usage,
+       const struct pipe_box *box,
+       struct pipe_transfer **ptransfer)
 {
-       assert(transfer->resource->target == PIPE_BUFFER);
-       assert(transfer->resource->bind & PIPE_BIND_GLOBAL);
-       assert(transfer->box.x >= 0);
-       assert(transfer->box.y == 0);
-       assert(transfer->box.z == 0);
-
-       struct r600_context *ctx = (struct r600_context *)ctx_;
+       struct r600_context *rctx = (struct r600_context*)ctx_;
+       struct compute_memory_pool *pool = rctx->screen->global_pool;
        struct r600_resource_global* buffer =
-               (struct r600_resource_global*)transfer->resource;
+               (struct r600_resource_global*)resource;
 
-       uint32_t* map;
-       ///TODO: do it better, mapping is not possible if the pool is too big
+       struct compute_memory_item *item = buffer->chunk;
+       struct pipe_resource *dst = NULL;
+       unsigned offset = box->x;
 
-       if (!(map = ctx->ws->buffer_map(buffer->chunk->pool->bo->cs_buf,
-                                               ctx->cs, transfer->usage))) {
-               return NULL;
+       if (is_item_in_pool(item)) {
+               compute_memory_demote_item(pool, item, ctx_);
+       }
+       else {
+               if (item->real_buffer == NULL) {
+                       item->real_buffer = (struct r600_resource*)
+                                       r600_compute_buffer_alloc_vram(pool->screen, item->size_in_dw * 4);
+               }
        }
 
-       COMPUTE_DBG("buffer start: %lli\n", buffer->chunk->start_in_dw);
-       return ((char*)(map + buffer->chunk->start_in_dw)) + transfer->box.x;
-}
-
-void r600_compute_global_transfer_unmap(
-       struct pipe_context *ctx_,
-       struct pipe_transfer* transfer)
-{
-       assert(transfer->resource->target == PIPE_BUFFER);
-       assert(transfer->resource->bind & PIPE_BIND_GLOBAL);
-
-       struct r600_context *ctx = (struct r600_context *)ctx_;
-       struct r600_resource_global* buffer =
-               (struct r600_resource_global*)transfer->resource;
+       dst = (struct pipe_resource*)item->real_buffer;
 
-       ctx->ws->buffer_unmap(buffer->chunk->pool->bo->cs_buf);
-}
+       if (usage & PIPE_TRANSFER_READ)
+               buffer->chunk->status |= ITEM_MAPPED_FOR_READING;
 
-struct pipe_transfer * r600_compute_global_get_transfer(
-       struct pipe_context *ctx_,
-       struct pipe_resource *resource,
-       unsigned level,
-       unsigned usage,
-       const struct pipe_box *box)
-{
-       struct r600_context *ctx = (struct r600_context *)ctx_;
-       struct compute_memory_pool *pool = ctx->screen->global_pool;
+       COMPUTE_DBG(rctx->screen, "* r600_compute_global_transfer_map()\n"
+                       "level = %u, usage = %u, box(x = %u, y = %u, z = %u "
+                       "width = %u, height = %u, depth = %u)\n", level, usage,
+                       box->x, box->y, box->z, box->width, box->height,
+                       box->depth);
+       COMPUTE_DBG(rctx->screen, "Buffer id = %"PRIi64" offset = "
+               "%u (box.x)\n", item->id, box->x);
 
-       compute_memory_finalize_pending(pool, ctx_);
 
        assert(resource->target == PIPE_BUFFER);
-       struct r600_context *rctx = (struct r600_context*)ctx_;
-       struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
-
-       transfer->resource = resource;
-       transfer->level = level;
-       transfer->usage = usage;
-       transfer->box = *box;
-       transfer->stride = 0;
-       transfer->layer_stride = 0;
-       transfer->data = NULL;
-
-       /* Note strides are zero, this is ok for buffers, but not for
-       * textures 2d & higher at least.
-       */
-       return transfer;
+       assert(resource->bind & PIPE_BIND_GLOBAL);
+       assert(box->x >= 0);
+       assert(box->y == 0);
+       assert(box->z == 0);
+
+       ///TODO: do it better, mapping is not possible if the pool is too big
+       return pipe_buffer_map_range(ctx_, dst,
+                       offset, box->width, usage, ptransfer);
 }
 
-void r600_compute_global_transfer_destroy(
+void r600_compute_global_transfer_unmap(
        struct pipe_context *ctx_,
-       struct pipe_transfer *transfer)
+       struct pipe_transfertransfer)
 {
-       struct r600_context *rctx = (struct r600_context*)ctx_;
-       util_slab_free(&rctx->pool_transfers, transfer);
+       /* struct r600_resource_global are not real resources, they just map
+        * to an offset within the compute memory pool.  The function
+        * r600_compute_global_transfer_map() maps the memory pool
+        * resource rather than the struct r600_resource_global passed to
+        * it as an argument and then initalizes ptransfer->resource with
+        * the memory pool resource (via pipe_buffer_map_range).
+        * When transfer_unmap is called it uses the memory pool's
+        * vtable which calls r600_buffer_transfer_map() rather than
+        * this function.
+        */
+       assert (!"This function should not be called");
 }
 
 void r600_compute_global_transfer_flush_region(