--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ *
+ * Copyright (C) 2012-2013 LunarG, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <string.h>
+#include <errno.h>
+#ifndef ETIME
+#define ETIME ETIMEOUT
+#endif
+
+#include <xf86drm.h>
+#include <i915_drm.h>
+#include <intel_bufmgr.h>
+
+#include "state_tracker/drm_driver.h"
+#include "pipe/p_state.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_debug.h"
+#include "intel_drm_public.h"
+#include "intel_winsys.h"
+
+#define BATCH_SZ (8192 * sizeof(uint32_t))
+
+struct intel_drm_winsys {
+ struct intel_winsys base;
+
+ int fd;
+ drm_intel_bufmgr *bufmgr;
+ struct drm_intel_decode *decode;
+
+ struct intel_winsys_info info;
+
+ drm_intel_bo **drm_bo_array;
+ int array_size;
+};
+
+struct intel_drm_bo {
+ struct intel_bo base;
+ struct pipe_reference reference;
+
+ drm_intel_bo *bo;
+ enum intel_tiling_mode tiling;
+ unsigned long pitch;
+};
+
+static inline struct intel_drm_winsys *
+intel_drm_winsys(struct intel_winsys *ws)
+{
+ return (struct intel_drm_winsys *) ws;
+}
+
+static inline struct intel_drm_bo *
+intel_drm_bo(struct intel_bo *bo)
+{
+ return (struct intel_drm_bo *) bo;
+}
+
+static int
+intel_drm_bo_export_handle(struct intel_bo *bo, struct winsys_handle *handle)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ int err = 0;
+
+ switch (handle->type) {
+ case DRM_API_HANDLE_TYPE_SHARED:
+ {
+ uint32_t name;
+
+ err = drm_intel_bo_flink(drm_bo->bo, &name);
+ if (!err)
+ handle->handle = name;
+ }
+ break;
+ case DRM_API_HANDLE_TYPE_KMS:
+ handle->handle = drm_bo->bo->handle;
+ break;
+#if 0
+ case DRM_API_HANDLE_TYPE_PRIME:
+ {
+ int fd;
+
+ err = drm_intel_bo_gem_export_to_prime(drm_bo->bo, &fd);
+ if (!err)
+ handle->handle = fd;
+ }
+#endif
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+ if (err)
+ return err;
+
+ handle->stride = drm_bo->pitch;
+
+ return 0;
+}
+
+static int
+intel_drm_bo_exec(struct intel_bo *bo, int used,
+ struct intel_context *ctx, unsigned long flags)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+
+ if (ctx) {
+ return drm_intel_gem_bo_context_exec(drm_bo->bo,
+ (drm_intel_context *) ctx, used, flags);
+ }
+ else {
+ return drm_intel_bo_mrb_exec(drm_bo->bo, used, NULL, 0, 0, flags);
+ }
+}
+
+static int
+intel_drm_bo_wait(struct intel_bo *bo, int64_t timeout)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ int err;
+
+ err = drm_intel_gem_bo_wait(drm_bo->bo, timeout);
+ /* consider the bo idle on errors */
+ if (err && err != -ETIME)
+ err = 0;
+
+ return err;
+}
+
+static int
+intel_drm_bo_emit_reloc(struct intel_bo *bo, uint32_t offset,
+ struct intel_bo *target_bo, uint32_t target_offset,
+ uint32_t read_domains, uint32_t write_domain)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ struct intel_drm_bo *target = intel_drm_bo(target_bo);
+
+ return drm_intel_bo_emit_reloc(drm_bo->bo, offset,
+ target->bo, target_offset, read_domains, write_domain);
+}
+
+static int
+intel_drm_bo_get_reloc_count(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_gem_bo_get_reloc_count(drm_bo->bo);
+}
+
+static void
+intel_drm_bo_clear_relocs(struct intel_bo *bo, int start)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_gem_bo_clear_relocs(drm_bo->bo, start);
+}
+
+static bool
+intel_drm_bo_references(struct intel_bo *bo, struct intel_bo *target_bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ struct intel_drm_bo *target = intel_drm_bo(target_bo);
+
+ return drm_intel_bo_references(drm_bo->bo, target->bo);
+}
+
+static int
+intel_drm_bo_map(struct intel_bo *bo, bool write_enable)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_bo_map(drm_bo->bo, write_enable);
+}
+
+static int
+intel_drm_bo_map_gtt(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_gem_bo_map_gtt(drm_bo->bo);
+}
+
+static int
+intel_drm_bo_map_unsynchronized(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_gem_bo_map_unsynchronized(drm_bo->bo);
+}
+
+static int
+intel_drm_bo_unmap(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_bo_unmap(drm_bo->bo);
+}
+
+static int
+intel_drm_bo_pwrite(struct intel_bo *bo, unsigned long offset,
+ unsigned long size, const void *data)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_bo_subdata(drm_bo->bo, offset, size, data);
+}
+
+static int
+intel_drm_bo_pread(struct intel_bo *bo, unsigned long offset,
+ unsigned long size, void *data)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_intel_bo_get_subdata(drm_bo->bo, offset, size, data);
+}
+
+static unsigned long
+intel_drm_bo_get_size(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_bo->bo->size;
+}
+
+static unsigned long
+intel_drm_bo_get_offset(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_bo->bo->offset;
+}
+
+static void *
+intel_drm_bo_get_virtual(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_bo->bo->virtual;
+}
+
+static enum intel_tiling_mode
+intel_drm_bo_get_tiling(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_bo->tiling;
+}
+
+static unsigned long
+intel_drm_bo_get_pitch(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ return drm_bo->pitch;
+}
+
+static void
+intel_drm_bo_reference(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+
+ pipe_reference(NULL, &drm_bo->reference);
+}
+
+static void
+intel_drm_bo_unreference(struct intel_bo *bo)
+{
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+
+ if (pipe_reference(&drm_bo->reference, NULL)) {
+ drm_intel_bo_unreference(drm_bo->bo);
+ FREE(drm_bo);
+ }
+}
+
+static struct intel_drm_bo *
+create_bo(void)
+{
+ struct intel_drm_bo *drm_bo;
+
+ drm_bo = CALLOC_STRUCT(intel_drm_bo);
+ if (!drm_bo)
+ return NULL;
+
+ pipe_reference_init(&drm_bo->reference, 1);
+ drm_bo->tiling = INTEL_TILING_NONE;
+ drm_bo->pitch = 0;
+
+ drm_bo->base.reference = intel_drm_bo_reference;
+ drm_bo->base.unreference = intel_drm_bo_unreference;
+
+ drm_bo->base.get_size = intel_drm_bo_get_size;
+ drm_bo->base.get_offset = intel_drm_bo_get_offset;
+ drm_bo->base.get_virtual = intel_drm_bo_get_virtual;
+ drm_bo->base.get_tiling = intel_drm_bo_get_tiling;
+ drm_bo->base.get_pitch = intel_drm_bo_get_pitch;
+
+ drm_bo->base.map = intel_drm_bo_map;
+ drm_bo->base.map_gtt = intel_drm_bo_map_gtt;
+ drm_bo->base.map_unsynchronized = intel_drm_bo_map_unsynchronized;
+ drm_bo->base.unmap = intel_drm_bo_unmap;
+
+ drm_bo->base.pwrite = intel_drm_bo_pwrite;
+ drm_bo->base.pread = intel_drm_bo_pread;
+
+ drm_bo->base.emit_reloc = intel_drm_bo_emit_reloc;
+ drm_bo->base.get_reloc_count = intel_drm_bo_get_reloc_count;
+ drm_bo->base.clear_relocs = intel_drm_bo_clear_relocs;
+ drm_bo->base.references = intel_drm_bo_references;
+
+ drm_bo->base.exec = intel_drm_bo_exec;
+ drm_bo->base.wait = intel_drm_bo_wait;
+
+ drm_bo->base.export_handle = intel_drm_bo_export_handle;
+
+ return drm_bo;
+}
+
+static struct intel_bo *
+intel_drm_winsys_alloc(struct intel_winsys *ws,
+ const char *name,
+ int width, int height, int cpp,
+ enum intel_tiling_mode tiling,
+ unsigned long flags)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ struct intel_drm_bo *drm_bo;
+ uint32_t real_tiling = tiling;
+ unsigned long pitch;
+
+ drm_bo = create_bo();
+ if (!drm_bo)
+ return NULL;
+
+ drm_bo->bo = drm_intel_bo_alloc_tiled(drm_ws->bufmgr, name,
+ width, height, cpp, &real_tiling, &pitch, flags);
+ if (!drm_bo->bo) {
+ FREE(drm_bo);
+ return NULL;
+ }
+
+ drm_bo->tiling = real_tiling;
+ drm_bo->pitch = pitch;
+
+ return &drm_bo->base;
+}
+
+static struct intel_bo *
+intel_drm_winsys_alloc_buffer(struct intel_winsys *ws,
+ const char *name,
+ unsigned long size,
+ unsigned long flags)
+{
+ const int alignment = 4096; /* always page-aligned */
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ struct intel_drm_bo *drm_bo;
+
+ drm_bo = create_bo();
+ if (!drm_bo)
+ return NULL;
+
+ if (flags == INTEL_ALLOC_FOR_RENDER) {
+ drm_bo->bo = drm_intel_bo_alloc_for_render(drm_ws->bufmgr,
+ name, size, alignment);
+ }
+ else {
+ assert(!flags);
+ drm_bo->bo = drm_intel_bo_alloc(drm_ws->bufmgr, name, size, alignment);
+ }
+
+ if (!drm_bo->bo) {
+ FREE(drm_bo);
+ return NULL;
+ }
+
+ return &drm_bo->base;
+}
+
+static struct intel_bo *
+intel_drm_winsys_import_handle(struct intel_winsys *ws,
+ const char *name,
+ int width, int height, int cpp,
+ const struct winsys_handle *handle)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ struct intel_drm_bo *drm_bo;
+ const unsigned long pitch = handle->stride;
+ uint32_t tiling, swizzle;
+ int err;
+
+ drm_bo = create_bo();
+ if (!drm_bo)
+ return NULL;
+
+ switch (handle->type) {
+ case DRM_API_HANDLE_TYPE_SHARED:
+ {
+ const uint32_t gem_name = handle->handle;
+ drm_bo->bo = drm_intel_bo_gem_create_from_name(drm_ws->bufmgr,
+ name, gem_name);
+ }
+ break;
+#if 0
+ case DRM_API_HANDLE_TYPE_PRIME:
+ {
+ const int fd = (int) handle->handle;
+ drm_bo->bo = drm_intel_bo_gem_create_from_prime(drm_ws->bufmgr,
+ fd, height * pitch);
+ }
+ break;
+#endif
+ default:
+ break;
+ }
+
+ if (!drm_bo->bo) {
+ FREE(drm_bo);
+ return NULL;
+ }
+
+ err = drm_intel_bo_get_tiling(drm_bo->bo, &tiling, &swizzle);
+ if (err) {
+ drm_intel_bo_unreference(drm_bo->bo);
+ FREE(drm_bo);
+ return NULL;
+ }
+
+ drm_bo->tiling = tiling;
+ drm_bo->pitch = pitch;
+
+ return &drm_bo->base;
+}
+
+static int
+intel_drm_winsys_check_aperture_space(struct intel_winsys *ws,
+ struct intel_bo **bo_array,
+ int count)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ drm_intel_bo *drm_bo_array[8];
+ int i;
+
+ if (likely(count <= Elements(drm_bo_array))) {
+ for (i = 0; i < count; i++)
+ drm_bo_array[i] = ((struct intel_drm_bo *) bo_array[i])->bo;
+
+ return drm_intel_bufmgr_check_aperture_space(drm_bo_array, count);
+ }
+
+ /* resize bo array if necessary */
+ if (drm_ws->array_size < count) {
+ void *tmp = MALLOC(count * sizeof(*drm_ws->drm_bo_array));
+
+ if (!tmp)
+ return -1;
+
+ FREE(drm_ws->drm_bo_array);
+ drm_ws->drm_bo_array = tmp;
+ drm_ws->array_size = count;
+ }
+
+ for (i = 0; i < count; i++)
+ drm_ws->drm_bo_array[i] = ((struct intel_drm_bo *) bo_array[i])->bo;
+
+ return drm_intel_bufmgr_check_aperture_space(drm_ws->drm_bo_array, count);
+}
+
+static void
+intel_drm_winsys_decode_commands(struct intel_winsys *ws,
+ struct intel_bo *bo, int used)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ struct intel_drm_bo *drm_bo = intel_drm_bo(bo);
+ int err;
+
+ if (!drm_ws->decode) {
+ drm_ws->decode = drm_intel_decode_context_alloc(drm_ws->info.devid);
+ if (!drm_ws->decode)
+ return;
+
+ /* debug_printf()/debug_error() uses stderr by default */
+ drm_intel_decode_set_output_file(drm_ws->decode, stderr);
+ }
+
+ err = drm_intel_bo_map(drm_bo->bo, false);
+ if (err) {
+ debug_printf("failed to map buffer for decoding\n");
+ return;
+ }
+
+ /* in dwords */
+ used /= 4;
+
+ drm_intel_decode_set_batch_pointer(drm_ws->decode,
+ drm_bo->bo->virtual,
+ drm_bo->bo->offset,
+ used);
+
+ drm_intel_decode(drm_ws->decode);
+
+ drm_intel_bo_unmap(drm_bo->bo);
+}
+
+static int
+intel_drm_winsys_read_reg(struct intel_winsys *ws,
+ uint32_t reg, uint64_t *val)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ return drm_intel_reg_read(drm_ws->bufmgr, reg, val);
+}
+
+static void
+intel_drm_winsys_enable_reuse(struct intel_winsys *ws)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ drm_intel_bufmgr_gem_enable_reuse(drm_ws->bufmgr);
+}
+
+static void
+intel_drm_winsys_destroy_context(struct intel_winsys *ws,
+ struct intel_context *ctx)
+{
+ drm_intel_gem_context_destroy((drm_intel_context *) ctx);
+}
+
+static struct intel_context *
+intel_drm_winsys_create_context(struct intel_winsys *ws)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+
+ return (struct intel_context *)
+ drm_intel_gem_context_create(drm_ws->bufmgr);
+}
+
+static const struct intel_winsys_info *
+intel_drm_winsys_get_info(struct intel_winsys *ws)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+ return &drm_ws->info;
+}
+
+static void
+intel_drm_winsys_destroy(struct intel_winsys *ws)
+{
+ struct intel_drm_winsys *drm_ws = intel_drm_winsys(ws);
+
+ if (drm_ws->decode)
+ drm_intel_decode_context_free(drm_ws->decode);
+
+ drm_intel_bufmgr_destroy(drm_ws->bufmgr);
+ FREE(drm_ws->drm_bo_array);
+ FREE(drm_ws);
+}
+
+static bool
+get_param(struct intel_drm_winsys *drm_ws, int param, int *value)
+{
+ struct drm_i915_getparam gp;
+ int err;
+
+ *value = 0;
+
+ memset(&gp, 0, sizeof(gp));
+ gp.param = param;
+ gp.value = value;
+
+ err = drmCommandWriteRead(drm_ws->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
+ if (err) {
+ *value = 0;
+ return false;
+ }
+
+ return true;
+}
+
+static bool
+init_info(struct intel_drm_winsys *drm_ws)
+{
+ struct intel_winsys_info *info = &drm_ws->info;
+ int val;
+
+ /* follow the classic driver here */
+ get_param(drm_ws, I915_PARAM_HAS_RELAXED_DELTA, &val);
+ if (!val) {
+ debug_error("kernel 2.6.39 required");
+ return false;
+ }
+
+ info->devid = drm_intel_bufmgr_gem_get_devid(drm_ws->bufmgr);
+
+ get_param(drm_ws, I915_PARAM_HAS_LLC, &val);
+ info->has_llc = val;
+
+ get_param(drm_ws, I915_PARAM_HAS_GEN7_SOL_RESET, &val);
+ info->has_gen7_sol_reset = val;
+
+ return true;
+}
+
+struct intel_winsys *
+intel_drm_winsys_create(int fd)
+{
+ struct intel_drm_winsys *drm_ws;
+
+ drm_ws = CALLOC_STRUCT(intel_drm_winsys);
+ if (!drm_ws)
+ return NULL;
+
+ drm_ws->fd = fd;
+
+ drm_ws->bufmgr = drm_intel_bufmgr_gem_init(drm_ws->fd, BATCH_SZ);
+ if (!drm_ws->bufmgr) {
+ debug_error("failed to create GEM buffer manager");
+ FREE(drm_ws);
+ return NULL;
+ }
+
+ if (!init_info(drm_ws)) {
+ drm_intel_bufmgr_destroy(drm_ws->bufmgr);
+ FREE(drm_ws);
+ return NULL;
+ }
+
+ drm_intel_bufmgr_gem_enable_fenced_relocs(drm_ws->bufmgr);
+
+ drm_ws->base.destroy = intel_drm_winsys_destroy;
+ drm_ws->base.get_info = intel_drm_winsys_get_info;
+ drm_ws->base.enable_reuse = intel_drm_winsys_enable_reuse;
+ drm_ws->base.create_context = intel_drm_winsys_create_context;
+ drm_ws->base.destroy_context = intel_drm_winsys_destroy_context;
+ drm_ws->base.read_reg = intel_drm_winsys_read_reg;
+ drm_ws->base.alloc = intel_drm_winsys_alloc;
+ drm_ws->base.alloc_buffer = intel_drm_winsys_alloc_buffer;
+ drm_ws->base.import_handle = intel_drm_winsys_import_handle;
+ drm_ws->base.check_aperture_space = intel_drm_winsys_check_aperture_space;
+ drm_ws->base.decode_commands = intel_drm_winsys_decode_commands;
+
+ return &drm_ws->base;
+}
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ *
+ * Copyright (C) 2012-2013 LunarG, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef INTEL_WINSYS_H
+#define INTEL_WINSYS_H
+
+#include "pipe/p_compiler.h"
+
+/* this is compatible with i915_drm.h's definitions */
+enum intel_exec_flag {
+ /* bits[2:0]: ring type */
+ INTEL_EXEC_DEFAULT = 0 << 0,
+ INTEL_EXEC_RENDER = 1 << 0,
+ INTEL_EXEC_BSD = 2 << 0,
+ INTEL_EXEC_BLT = 3 << 0,
+
+ /* bits[7:6]: constant buffer addressing mode */
+
+ /* bits[8]: reset SO write offset register on GEN7+ */
+ INTEL_EXEC_GEN7_SOL_RESET = 1 << 8,
+};
+
+/* this is compatible with i915_drm.h's definitions */
+enum intel_domain_flag {
+ INTEL_DOMAIN_CPU = 0x00000001,
+ INTEL_DOMAIN_RENDER = 0x00000002,
+ INTEL_DOMAIN_SAMPLER = 0x00000004,
+ INTEL_DOMAIN_COMMAND = 0x00000008,
+ INTEL_DOMAIN_INSTRUCTION = 0x00000010,
+ INTEL_DOMAIN_VERTEX = 0x00000020,
+ INTEL_DOMAIN_GTT = 0x00000040,
+};
+
+/* this is compatible with i915_drm.h's definitions */
+enum intel_tiling_mode {
+ INTEL_TILING_NONE = 0,
+ INTEL_TILING_X = 1,
+ INTEL_TILING_Y = 2,
+};
+
+/* this is compatible with intel_bufmgr.h's definitions */
+enum intel_alloc_flag {
+ INTEL_ALLOC_FOR_RENDER = 1 << 0,
+};
+
+struct winsys_handle;
+struct intel_context;
+
+struct intel_winsys_info {
+ int devid;
+ bool has_llc;
+ bool has_gen7_sol_reset;
+};
+
+/**
+ * Buffer objects.
+ */
+struct intel_bo {
+ void (*reference)(struct intel_bo *bo);
+ void (*unreference)(struct intel_bo *bo);
+
+ /* accessors */
+ unsigned long (*get_size)(struct intel_bo *bo);
+ unsigned long (*get_offset)(struct intel_bo *bo);
+ void *(*get_virtual)(struct intel_bo *bo);
+ enum intel_tiling_mode (*get_tiling)(struct intel_bo *bo);
+ unsigned long (*get_pitch)(struct intel_bo *bo);
+
+ /**
+ * Map/unmap \p bo for CPU access.
+ *
+ * map() maps the backing store into CPU address space, cached. This
+ * variant allows for fast random reads and writes. But the caller needs
+ * handle tiling or swizzling manually if the bo is tiled or swizzled. If
+ * write is enabled and there is no shared last-level cache (LLC), unmap()
+ * needs to flush the cache, which is rather expensive.
+ *
+ * map_gtt() maps the bo for MMIO access, uncached but write-combined.
+ * This variant promises a reasonable speed for sequential writes, but
+ * reads would be very slow. Callers always have a linear view of the bo.
+ *
+ * map_unsynchronized() is similar to map_gtt(), except that it does not
+ * wait until the bo is idle.
+ */
+ int (*map)(struct intel_bo *bo, bool write_enable);
+ int (*map_gtt)(struct intel_bo *bo);
+ int (*map_unsynchronized)(struct intel_bo *bo);
+ int (*unmap)(struct intel_bo *bo);
+
+ /**
+ * Move data in to or out of the bo.
+ */
+ int (*pwrite)(struct intel_bo *bo, unsigned long offset,
+ unsigned long size, const void *data);
+ int (*pread)(struct intel_bo *bo, unsigned long offset,
+ unsigned long size, void *data);
+
+ /**
+ * Add \p target_bo to the relocation list.
+ *
+ * When \p bo is submitted for execution, and if \p target_bo has moved,
+ * the kernel will patch \p bo at \p offset to \p target_bo->offset plus
+ * \p target_offset.
+ */
+ int (*emit_reloc)(struct intel_bo *bo, uint32_t offset,
+ struct intel_bo *target_bo, uint32_t target_offset,
+ uint32_t read_domains, uint32_t write_domain);
+
+ /**
+ * Return the current number of relocations.
+ */
+ int (*get_reloc_count)(struct intel_bo *bo);
+
+ /**
+ * Discard all relocations except the first \p start ones.
+ *
+ * Combined with \p get_reloc_count(), they can be used to undo
+ * the \p emit_reloc() calls that were just made.
+ */
+ void (*clear_relocs)(struct intel_bo *bo, int start);
+
+ /**
+ * Return true if \p target_bo is on the relocation list of \p bo, or on
+ * the relocation list of some bo that is referenced by \p bo.
+ */
+ bool (*references)(struct intel_bo *bo, struct intel_bo *target_bo);
+
+ /**
+ * Submit \p bo for execution.
+ *
+ * \p bo and all bos referenced by \p bo will be considered busy until all
+ * commands are parsed and executed.
+ */
+ int (*exec)(struct intel_bo *bo, int used,
+ struct intel_context *ctx, unsigned long flags);
+
+ /**
+ * Wait until \bo is idle, or \p timeout nanoseconds have passed. A
+ * negative timeout means to wait indefinitely.
+ *
+ * \return 0 only when \p bo is idle
+ */
+ int (*wait)(struct intel_bo *bo, int64_t timeout);
+
+ /**
+ * Export a handle for inter-process sharing.
+ */
+ int (*export_handle)(struct intel_bo *bo, struct winsys_handle *handle);
+};
+
+/*
+ * Interface to OS functions. This allows the pipe drivers to be OS agnostic.
+ *
+ * Check libdrm_intel out for documentation.
+ */
+struct intel_winsys {
+ void (*destroy)(struct intel_winsys *ws);
+
+ const struct intel_winsys_info *(*get_info)(struct intel_winsys *ws);
+
+ void (*enable_reuse)(struct intel_winsys *ws);
+
+ struct intel_context *(*create_context)(struct intel_winsys *ws);
+ void (*destroy_context)(struct intel_winsys *ws,
+ struct intel_context *ctx);
+
+ int (*read_reg)(struct intel_winsys *ws, uint32_t reg, uint64_t *val);
+
+ struct intel_bo *(*alloc)(struct intel_winsys *ws,
+ const char *name,
+ int width, int height, int cpp,
+ enum intel_tiling_mode tiling,
+ unsigned long flags);
+
+ struct intel_bo *(*alloc_buffer)(struct intel_winsys *ws,
+ const char *name,
+ unsigned long size,
+ unsigned long flags);
+
+ struct intel_bo *(*import_handle)(struct intel_winsys *ws,
+ const char *name,
+ int width, int height, int cpp,
+ const struct winsys_handle *handle);
+
+ int (*check_aperture_space)(struct intel_winsys *ws,
+ struct intel_bo **bo_array,
+ int count);
+
+ void (*decode_commands)(struct intel_winsys *ws,
+ struct intel_bo *bo, int used);
+};
+
+/**
+ * Return true if \p bo is busy.
+ */
+static inline bool
+intel_bo_is_busy(struct intel_bo *bo)
+{
+ return (bo->wait(bo, 0) != 0);
+}
+
+#endif /* INTEL_WINSYS_H */
projects / mesa.git / commitdiff