/* * Copyright © 2017 Intel Corporation * * 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. */ /** * @file iris_resource.c * * Resources are images, buffers, and other objects used by the GPU. * * XXX: explain resources */ #include #include #include "pipe/p_defines.h" #include "pipe/p_state.h" #include "pipe/p_context.h" #include "pipe/p_screen.h" #include "util/os_memory.h" #include "util/u_cpu_detect.h" #include "util/u_inlines.h" #include "util/u_format.h" #include "util/u_transfer.h" #include "util/u_transfer_helper.h" #include "util/u_upload_mgr.h" #include "util/ralloc.h" #include "iris_batch.h" #include "iris_context.h" #include "iris_resource.h" #include "iris_screen.h" #include "intel/common/gen_debug.h" #include "isl/isl.h" #include "drm-uapi/drm_fourcc.h" #include "drm-uapi/i915_drm.h" enum modifier_priority { MODIFIER_PRIORITY_INVALID = 0, MODIFIER_PRIORITY_LINEAR, MODIFIER_PRIORITY_X, MODIFIER_PRIORITY_Y, MODIFIER_PRIORITY_Y_CCS, }; static const uint64_t priority_to_modifier[] = { [MODIFIER_PRIORITY_INVALID] = DRM_FORMAT_MOD_INVALID, [MODIFIER_PRIORITY_LINEAR] = DRM_FORMAT_MOD_LINEAR, [MODIFIER_PRIORITY_X] = I915_FORMAT_MOD_X_TILED, [MODIFIER_PRIORITY_Y] = I915_FORMAT_MOD_Y_TILED, [MODIFIER_PRIORITY_Y_CCS] = I915_FORMAT_MOD_Y_TILED_CCS, }; static bool modifier_is_supported(const struct gen_device_info *devinfo, uint64_t modifier) { /* XXX: do something real */ switch (modifier) { case I915_FORMAT_MOD_Y_TILED: case I915_FORMAT_MOD_X_TILED: case DRM_FORMAT_MOD_LINEAR: return true; case I915_FORMAT_MOD_Y_TILED_CCS: case DRM_FORMAT_MOD_INVALID: default: return false; } } static uint64_t select_best_modifier(struct gen_device_info *devinfo, const uint64_t *modifiers, int count) { enum modifier_priority prio = MODIFIER_PRIORITY_INVALID; for (int i = 0; i < count; i++) { if (!modifier_is_supported(devinfo, modifiers[i])) continue; switch (modifiers[i]) { case I915_FORMAT_MOD_Y_TILED_CCS: prio = MAX2(prio, MODIFIER_PRIORITY_Y_CCS); break; case I915_FORMAT_MOD_Y_TILED: prio = MAX2(prio, MODIFIER_PRIORITY_Y); break; case I915_FORMAT_MOD_X_TILED: prio = MAX2(prio, MODIFIER_PRIORITY_X); break; case DRM_FORMAT_MOD_LINEAR: prio = MAX2(prio, MODIFIER_PRIORITY_LINEAR); break; case DRM_FORMAT_MOD_INVALID: default: break; } } return priority_to_modifier[prio]; } static enum isl_surf_dim target_to_isl_surf_dim(enum pipe_texture_target target) { switch (target) { case PIPE_BUFFER: case PIPE_TEXTURE_1D: case PIPE_TEXTURE_1D_ARRAY: return ISL_SURF_DIM_1D; case PIPE_TEXTURE_2D: case PIPE_TEXTURE_CUBE: case PIPE_TEXTURE_RECT: case PIPE_TEXTURE_2D_ARRAY: case PIPE_TEXTURE_CUBE_ARRAY: return ISL_SURF_DIM_2D; case PIPE_TEXTURE_3D: return ISL_SURF_DIM_3D; case PIPE_MAX_TEXTURE_TYPES: break; } unreachable("invalid texture type"); } static isl_surf_usage_flags_t pipe_bind_to_isl_usage(unsigned bindings) { isl_surf_usage_flags_t usage = 0; if (bindings & PIPE_BIND_RENDER_TARGET) usage |= ISL_SURF_USAGE_RENDER_TARGET_BIT; if (bindings & PIPE_BIND_SAMPLER_VIEW) usage |= ISL_SURF_USAGE_TEXTURE_BIT; if (bindings & (PIPE_BIND_SHADER_IMAGE | PIPE_BIND_SHADER_BUFFER)) usage |= ISL_SURF_USAGE_STORAGE_BIT; if (bindings & PIPE_BIND_DISPLAY_TARGET) usage |= ISL_SURF_USAGE_DISPLAY_BIT; return usage; } struct pipe_resource * iris_resource_get_separate_stencil(struct pipe_resource *p_res) { /* For packed depth-stencil, we treat depth as the primary resource * and store S8 as the "second plane" resource. */ return p_res->next; } static void iris_resource_set_separate_stencil(struct pipe_resource *p_res, struct pipe_resource *stencil) { assert(util_format_has_depth(util_format_description(p_res->format))); pipe_resource_reference(&p_res->next, stencil); } void iris_get_depth_stencil_resources(struct pipe_resource *res, struct iris_resource **out_z, struct iris_resource **out_s) { if (!res) { *out_z = NULL; *out_s = NULL; return; } if (res->format != PIPE_FORMAT_S8_UINT) { *out_z = (void *) res; *out_s = (void *) iris_resource_get_separate_stencil(res); } else { *out_z = NULL; *out_s = (void *) res; } } void iris_resource_disable_aux(struct iris_resource *res) { iris_bo_unreference(res->aux.bo); iris_bo_unreference(res->aux.clear_color_bo); free(res->aux.state); res->aux.usage = ISL_AUX_USAGE_NONE; res->aux.possible_usages = 1 << ISL_AUX_USAGE_NONE; res->aux.surf.size_B = 0; res->aux.bo = NULL; res->aux.clear_color_bo = NULL; res->aux.state = NULL; } static void iris_resource_destroy(struct pipe_screen *screen, struct pipe_resource *resource) { struct iris_resource *res = (struct iris_resource *)resource; iris_resource_disable_aux(res); iris_bo_unreference(res->bo); free(res); } static struct iris_resource * iris_alloc_resource(struct pipe_screen *pscreen, const struct pipe_resource *templ) { struct iris_resource *res = calloc(1, sizeof(struct iris_resource)); if (!res) return NULL; res->base = *templ; res->base.screen = pscreen; pipe_reference_init(&res->base.reference, 1); res->aux.possible_usages = 1 << ISL_AUX_USAGE_NONE; return res; } unsigned iris_get_num_logical_layers(const struct iris_resource *res, unsigned level) { if (res->surf.dim == ISL_SURF_DIM_3D) return minify(res->surf.logical_level0_px.depth, level); else return res->surf.logical_level0_px.array_len; } static enum isl_aux_state ** create_aux_state_map(struct iris_resource *res, enum isl_aux_state initial) { uint32_t total_slices = 0; for (uint32_t level = 0; level < res->surf.levels; level++) total_slices += iris_get_num_logical_layers(res, level); const size_t per_level_array_size = res->surf.levels * sizeof(enum isl_aux_state *); /* We're going to allocate a single chunk of data for both the per-level * reference array and the arrays of aux_state. This makes cleanup * significantly easier. */ const size_t total_size = per_level_array_size + total_slices * sizeof(enum isl_aux_state); void *data = malloc(total_size); if (!data) return NULL; enum isl_aux_state **per_level_arr = data; enum isl_aux_state *s = data + per_level_array_size; for (uint32_t level = 0; level < res->surf.levels; level++) { per_level_arr[level] = s; const unsigned level_layers = iris_get_num_logical_layers(res, level); for (uint32_t a = 0; a < level_layers; a++) *(s++) = initial; } assert((void *)s == data + total_size); return per_level_arr; } /** * Allocate the initial aux surface for a resource based on aux.usage */ static bool iris_resource_alloc_aux(struct iris_screen *screen, struct iris_resource *res) { struct isl_device *isl_dev = &screen->isl_dev; enum isl_aux_state initial_state; UNUSED bool ok = false; uint8_t memset_value = 0; uint32_t alloc_flags = 0; const struct gen_device_info *devinfo = &screen->devinfo; const unsigned clear_color_state_size = devinfo->gen >= 10 ? screen->isl_dev.ss.clear_color_state_size : screen->isl_dev.ss.clear_value_size; assert(!res->aux.bo); switch (res->aux.usage) { case ISL_AUX_USAGE_NONE: res->aux.surf.size_B = 0; break; case ISL_AUX_USAGE_HIZ: initial_state = ISL_AUX_STATE_AUX_INVALID; memset_value = 0; ok = isl_surf_get_hiz_surf(isl_dev, &res->surf, &res->aux.surf); break; case ISL_AUX_USAGE_MCS: /* The Ivybridge PRM, Vol 2 Part 1 p326 says: * * "When MCS buffer is enabled and bound to MSRT, it is required * that it is cleared prior to any rendering." * * Since we only use the MCS buffer for rendering, we just clear it * immediately on allocation. The clear value for MCS buffers is all * 1's, so we simply memset it to 0xff. */ initial_state = ISL_AUX_STATE_CLEAR; memset_value = 0xFF; ok = isl_surf_get_mcs_surf(isl_dev, &res->surf, &res->aux.surf); break; case ISL_AUX_USAGE_CCS_D: case ISL_AUX_USAGE_CCS_E: /* When CCS_E is used, we need to ensure that the CCS starts off in * a valid state. From the Sky Lake PRM, "MCS Buffer for Render * Target(s)": * * "If Software wants to enable Color Compression without Fast * clear, Software needs to initialize MCS with zeros." * * A CCS value of 0 indicates that the corresponding block is in the * pass-through state which is what we want. * * For CCS_D, do the same thing. On Gen9+, this avoids having any * undefined bits in the aux buffer. */ initial_state = ISL_AUX_STATE_PASS_THROUGH; alloc_flags |= BO_ALLOC_ZEROED; ok = isl_surf_get_ccs_surf(isl_dev, &res->surf, &res->aux.surf, 0); break; } /* No work is needed for a zero-sized auxiliary buffer. */ if (res->aux.surf.size_B == 0) return true; /* Assert that ISL gave us a valid aux surf */ assert(ok); /* Create the aux_state for the auxiliary buffer. */ res->aux.state = create_aux_state_map(res, initial_state); if (!res->aux.state) return false; uint64_t size = res->aux.surf.size_B; /* Allocate space in the buffer for storing the clear color. On modern * platforms (gen > 9), we can read it directly from such buffer. * * On gen <= 9, we are going to store the clear color on the buffer * anyways, and copy it back to the surface state during state emission. */ res->aux.clear_color_offset = size; size += clear_color_state_size; /* Allocate the auxiliary buffer. ISL has stricter set of alignment rules * the drm allocator. Therefore, one can pass the ISL dimensions in terms * of bytes instead of trying to recalculate based on different format * block sizes. */ res->aux.bo = iris_bo_alloc_tiled(screen->bufmgr, "aux buffer", size, IRIS_MEMZONE_OTHER, I915_TILING_Y, res->aux.surf.row_pitch_B, alloc_flags); if (!res->aux.bo) { return false; } if (!(alloc_flags & BO_ALLOC_ZEROED)) { void *map = iris_bo_map(NULL, res->aux.bo, MAP_WRITE | MAP_RAW); if (!map) { iris_resource_disable_aux(res); return false; } if (memset_value != 0) memset(map, memset_value, res->aux.surf.size_B); /* Zero the indirect clear color to match ::fast_clear_color. */ memset((char *)map + res->aux.clear_color_offset, 0, clear_color_state_size); iris_bo_unmap(res->aux.bo); } res->aux.clear_color_bo = res->aux.bo; iris_bo_reference(res->aux.clear_color_bo); if (res->aux.usage == ISL_AUX_USAGE_HIZ) { for (unsigned level = 0; level < res->surf.levels; ++level) { uint32_t width = u_minify(res->surf.phys_level0_sa.width, level); uint32_t height = u_minify(res->surf.phys_level0_sa.height, level); /* Disable HiZ for LOD > 0 unless the width/height are 8x4 aligned. * For LOD == 0, we can grow the dimensions to make it work. */ if (level == 0 || ((width & 7) == 0 && (height & 3) == 0)) res->aux.has_hiz |= 1 << level; } } return true; } static bool supports_mcs(const struct isl_surf *surf) { /* MCS compression only applies to multisampled resources. */ if (surf->samples <= 1) return false; /* See isl_surf_get_mcs_surf for details. */ if (surf->samples == 16 && surf->logical_level0_px.width > 8192) return false; /* Depth and stencil buffers use the IMS (interleaved) layout. */ if (isl_surf_usage_is_depth_or_stencil(surf->usage)) return false; return true; } static bool supports_ccs(const struct gen_device_info *devinfo, const struct isl_surf *surf) { /* Gen9+ only supports CCS for Y-tiled buffers. */ if (surf->tiling != ISL_TILING_Y0) return false; /* CCS only supports singlesampled resources. */ if (surf->samples > 1) return false; /* The PRM doesn't say this explicitly, but fast-clears don't appear to * work for 3D textures until Gen9 where the layout of 3D textures changes * to match 2D array textures. */ if (devinfo->gen < 9 && surf->dim != ISL_SURF_DIM_2D) return false; /* Note: still need to check the format! */ return true; } static struct pipe_resource * iris_resource_create_for_buffer(struct pipe_screen *pscreen, const struct pipe_resource *templ) { struct iris_screen *screen = (struct iris_screen *)pscreen; struct iris_resource *res = iris_alloc_resource(pscreen, templ); assert(templ->target == PIPE_BUFFER); assert(templ->height0 <= 1); assert(templ->depth0 <= 1); assert(templ->format == PIPE_FORMAT_NONE || util_format_get_blocksize(templ->format) == 1); res->internal_format = templ->format; res->surf.tiling = ISL_TILING_LINEAR; enum iris_memory_zone memzone = IRIS_MEMZONE_OTHER; const char *name = templ->target == PIPE_BUFFER ? "buffer" : "miptree"; if (templ->flags & IRIS_RESOURCE_FLAG_SHADER_MEMZONE) { memzone = IRIS_MEMZONE_SHADER; name = "shader kernels"; } else if (templ->flags & IRIS_RESOURCE_FLAG_SURFACE_MEMZONE) { memzone = IRIS_MEMZONE_SURFACE; name = "surface state"; } else if (templ->flags & IRIS_RESOURCE_FLAG_DYNAMIC_MEMZONE) { memzone = IRIS_MEMZONE_DYNAMIC; name = "dynamic state"; } res->bo = iris_bo_alloc(screen->bufmgr, name, templ->width0, memzone); if (!res->bo) { iris_resource_destroy(pscreen, &res->base); return NULL; } return &res->base; } static struct pipe_resource * iris_resource_create_with_modifiers(struct pipe_screen *pscreen, const struct pipe_resource *templ, const uint64_t *modifiers, int modifiers_count) { struct iris_screen *screen = (struct iris_screen *)pscreen; struct gen_device_info *devinfo = &screen->devinfo; struct iris_resource *res = iris_alloc_resource(pscreen, templ); if (!res) return NULL; const struct util_format_description *format_desc = util_format_description(templ->format); const bool has_depth = util_format_has_depth(format_desc); uint64_t modifier = select_best_modifier(devinfo, modifiers, modifiers_count); isl_tiling_flags_t tiling_flags = ISL_TILING_ANY_MASK; if (modifier != DRM_FORMAT_MOD_INVALID) { res->mod_info = isl_drm_modifier_get_info(modifier); tiling_flags = 1 << res->mod_info->tiling; } else { if (modifiers_count > 0) { fprintf(stderr, "Unsupported modifier, resource creation failed.\n"); return NULL; } /* No modifiers - we can select our own tiling. */ if (has_depth) { /* Depth must be Y-tiled */ tiling_flags = ISL_TILING_Y0_BIT; } else if (templ->format == PIPE_FORMAT_S8_UINT) { /* Stencil must be W-tiled */ tiling_flags = ISL_TILING_W_BIT; } else if (templ->target == PIPE_BUFFER || templ->target == PIPE_TEXTURE_1D || templ->target == PIPE_TEXTURE_1D_ARRAY) { /* Use linear for buffers and 1D textures */ tiling_flags = ISL_TILING_LINEAR_BIT; } /* Use linear for staging buffers */ if (templ->usage == PIPE_USAGE_STAGING || templ->bind & (PIPE_BIND_LINEAR | PIPE_BIND_CURSOR) ) tiling_flags = ISL_TILING_LINEAR_BIT; } isl_surf_usage_flags_t usage = pipe_bind_to_isl_usage(templ->bind); if (templ->target == PIPE_TEXTURE_CUBE || templ->target == PIPE_TEXTURE_CUBE_ARRAY) usage |= ISL_SURF_USAGE_CUBE_BIT; if (templ->usage != PIPE_USAGE_STAGING) { if (templ->format == PIPE_FORMAT_S8_UINT) usage |= ISL_SURF_USAGE_STENCIL_BIT; else if (has_depth) usage |= ISL_SURF_USAGE_DEPTH_BIT; } enum pipe_format pfmt = templ->format; res->internal_format = pfmt; /* Should be handled by u_transfer_helper */ assert(!util_format_is_depth_and_stencil(pfmt)); struct iris_format_info fmt = iris_format_for_usage(devinfo, pfmt, usage); assert(fmt.fmt != ISL_FORMAT_UNSUPPORTED); UNUSED const bool isl_surf_created_successfully = isl_surf_init(&screen->isl_dev, &res->surf, .dim = target_to_isl_surf_dim(templ->target), .format = fmt.fmt, .width = templ->width0, .height = templ->height0, .depth = templ->depth0, .levels = templ->last_level + 1, .array_len = templ->array_size, .samples = MAX2(templ->nr_samples, 1), .min_alignment_B = 0, .row_pitch_B = 0, .usage = usage, .tiling_flags = tiling_flags); assert(isl_surf_created_successfully); if (res->mod_info) { res->aux.possible_usages |= 1 << res->mod_info->aux_usage; } else if (supports_mcs(&res->surf)) { res->aux.possible_usages |= 1 << ISL_AUX_USAGE_MCS; } else if (has_depth) { if (likely(!(INTEL_DEBUG & DEBUG_NO_HIZ))) res->aux.possible_usages |= 1 << ISL_AUX_USAGE_HIZ; } else if (likely(!(INTEL_DEBUG & DEBUG_NO_RBC)) && supports_ccs(devinfo, &res->surf)) { if (isl_format_supports_ccs_e(devinfo, res->surf.format)) res->aux.possible_usages |= 1 << ISL_AUX_USAGE_CCS_E; if (isl_format_supports_ccs_d(devinfo, res->surf.format)) res->aux.possible_usages |= 1 << ISL_AUX_USAGE_CCS_D; } res->aux.usage = util_last_bit(res->aux.possible_usages) - 1; const char *name = "miptree"; enum iris_memory_zone memzone = IRIS_MEMZONE_OTHER; unsigned int flags = 0; if (templ->usage == PIPE_USAGE_STAGING) flags |= BO_ALLOC_COHERENT; /* These are for u_upload_mgr buffers only */ assert(!(templ->flags & (IRIS_RESOURCE_FLAG_SHADER_MEMZONE | IRIS_RESOURCE_FLAG_SURFACE_MEMZONE | IRIS_RESOURCE_FLAG_DYNAMIC_MEMZONE))); res->bo = iris_bo_alloc_tiled(screen->bufmgr, name, res->surf.size_B, memzone, isl_tiling_to_i915_tiling(res->surf.tiling), res->surf.row_pitch_B, flags); if (!res->bo) goto fail; if (!iris_resource_alloc_aux(screen, res)) goto fail; return &res->base; fail: fprintf(stderr, "XXX: resource creation failed\n"); iris_resource_destroy(pscreen, &res->base); return NULL; } static struct pipe_resource * iris_resource_create(struct pipe_screen *pscreen, const struct pipe_resource *templ) { if (templ->target == PIPE_BUFFER) return iris_resource_create_for_buffer(pscreen, templ); else return iris_resource_create_with_modifiers(pscreen, templ, NULL, 0); } static uint64_t tiling_to_modifier(uint32_t tiling) { static const uint64_t map[] = { [I915_TILING_NONE] = DRM_FORMAT_MOD_LINEAR, [I915_TILING_X] = I915_FORMAT_MOD_X_TILED, [I915_TILING_Y] = I915_FORMAT_MOD_Y_TILED, }; assert(tiling < ARRAY_SIZE(map)); return map[tiling]; } static struct pipe_resource * iris_resource_from_user_memory(struct pipe_screen *pscreen, const struct pipe_resource *templ, void *user_memory) { struct iris_screen *screen = (struct iris_screen *)pscreen; struct iris_bufmgr *bufmgr = screen->bufmgr; struct iris_resource *res = iris_alloc_resource(pscreen, templ); if (!res) return NULL; assert(templ->target == PIPE_BUFFER); res->internal_format = templ->format; res->bo = iris_bo_create_userptr(bufmgr, "user", user_memory, templ->width0, IRIS_MEMZONE_OTHER); if (!res->bo) { free(res); return NULL; } return &res->base; } static struct pipe_resource * iris_resource_from_handle(struct pipe_screen *pscreen, const struct pipe_resource *templ, struct winsys_handle *whandle, unsigned usage) { struct iris_screen *screen = (struct iris_screen *)pscreen; struct gen_device_info *devinfo = &screen->devinfo; struct iris_bufmgr *bufmgr = screen->bufmgr; struct iris_resource *res = iris_alloc_resource(pscreen, templ); if (!res) return NULL; if (whandle->offset != 0) { dbg_printf("Attempt to import unsupported winsys offset %u\n", whandle->offset); goto fail; } switch (whandle->type) { case WINSYS_HANDLE_TYPE_FD: res->bo = iris_bo_import_dmabuf(bufmgr, whandle->handle); break; case WINSYS_HANDLE_TYPE_SHARED: res->bo = iris_bo_gem_create_from_name(bufmgr, "winsys image", whandle->handle); break; default: unreachable("invalid winsys handle type"); } if (!res->bo) return NULL; uint64_t modifier = whandle->modifier; if (modifier == DRM_FORMAT_MOD_INVALID) { modifier = tiling_to_modifier(res->bo->tiling_mode); } res->mod_info = isl_drm_modifier_get_info(modifier); assert(res->mod_info); isl_surf_usage_flags_t isl_usage = pipe_bind_to_isl_usage(templ->bind); const struct iris_format_info fmt = iris_format_for_usage(devinfo, templ->format, isl_usage); res->internal_format = templ->format; if (templ->target == PIPE_BUFFER) { res->surf.tiling = ISL_TILING_LINEAR; } else { isl_surf_init(&screen->isl_dev, &res->surf, .dim = target_to_isl_surf_dim(templ->target), .format = fmt.fmt, .width = templ->width0, .height = templ->height0, .depth = templ->depth0, .levels = templ->last_level + 1, .array_len = templ->array_size, .samples = MAX2(templ->nr_samples, 1), .min_alignment_B = 0, .row_pitch_B = whandle->stride, .usage = isl_usage, .tiling_flags = 1 << res->mod_info->tiling); assert(res->bo->tiling_mode == isl_tiling_to_i915_tiling(res->surf.tiling)); // XXX: create_ccs_buf_for_image? if (!iris_resource_alloc_aux(screen, res)) goto fail; } return &res->base; fail: iris_resource_destroy(pscreen, &res->base); return NULL; } static boolean iris_resource_get_handle(struct pipe_screen *pscreen, struct pipe_context *ctx, struct pipe_resource *resource, struct winsys_handle *whandle, unsigned usage) { struct iris_resource *res = (struct iris_resource *)resource; /* If this is a buffer, stride should be 0 - no need to special case */ whandle->stride = res->surf.row_pitch_B; whandle->modifier = res->mod_info ? res->mod_info->modifier : tiling_to_modifier(res->bo->tiling_mode); #ifndef NDEBUG enum isl_aux_usage allowed_usage = res->mod_info ? res->mod_info->aux_usage : ISL_AUX_USAGE_NONE; if (res->aux.usage != allowed_usage) { enum isl_aux_state aux_state = iris_resource_get_aux_state(res, 0, 0); assert(aux_state == ISL_AUX_STATE_RESOLVED || aux_state == ISL_AUX_STATE_PASS_THROUGH); } #endif switch (whandle->type) { case WINSYS_HANDLE_TYPE_SHARED: return iris_bo_flink(res->bo, &whandle->handle) == 0; case WINSYS_HANDLE_TYPE_KMS: whandle->handle = iris_bo_export_gem_handle(res->bo); return true; case WINSYS_HANDLE_TYPE_FD: return iris_bo_export_dmabuf(res->bo, (int *) &whandle->handle) == 0; } return false; } static void iris_unmap_copy_region(struct iris_transfer *map) { struct pipe_transfer *xfer = &map->base; struct pipe_box *dst_box = &xfer->box; struct pipe_box src_box = (struct pipe_box) { .x = xfer->resource->target == PIPE_BUFFER ? xfer->box.x % IRIS_MAP_BUFFER_ALIGNMENT : 0, .width = dst_box->width, .height = dst_box->height, .depth = dst_box->depth, }; if (xfer->usage & PIPE_TRANSFER_WRITE) { iris_copy_region(map->blorp, map->batch, xfer->resource, xfer->level, dst_box->x, dst_box->y, dst_box->z, map->staging, 0, &src_box); } iris_resource_destroy(map->staging->screen, map->staging); map->ptr = NULL; } static void iris_map_copy_region(struct iris_transfer *map) { struct pipe_screen *pscreen = &map->batch->screen->base; struct pipe_transfer *xfer = &map->base; struct pipe_box *box = &xfer->box; struct iris_resource *res = (void *) xfer->resource; unsigned extra = xfer->resource->target == PIPE_BUFFER ? box->x % IRIS_MAP_BUFFER_ALIGNMENT : 0; struct pipe_resource templ = (struct pipe_resource) { .usage = PIPE_USAGE_STAGING, .width0 = box->width + extra, .height0 = box->height, .depth0 = 1, .nr_samples = xfer->resource->nr_samples, .nr_storage_samples = xfer->resource->nr_storage_samples, .array_size = box->depth, }; if (xfer->resource->target == PIPE_BUFFER) templ.target = PIPE_BUFFER; else if (templ.array_size > 1) templ.target = PIPE_TEXTURE_2D_ARRAY; else templ.target = PIPE_TEXTURE_2D; /* Depth, stencil, and ASTC can't be linear surfaces, so we can't use * xfer->resource->format directly. Pick a bpb compatible format so * resource creation will succeed; blorp_copy will override it anyway. */ switch (util_format_get_blocksizebits(res->internal_format)) { case 8: templ.format = PIPE_FORMAT_R8_UINT; break; case 16: templ.format = PIPE_FORMAT_R8G8_UINT; break; case 24: templ.format = PIPE_FORMAT_R8G8B8_UINT; break; case 32: templ.format = PIPE_FORMAT_R8G8B8A8_UINT; break; case 48: templ.format = PIPE_FORMAT_R16G16B16_UINT; break; case 64: templ.format = PIPE_FORMAT_R16G16B16A16_UINT; break; case 96: templ.format = PIPE_FORMAT_R32G32B32_UINT; break; case 128: templ.format = PIPE_FORMAT_R32G32B32A32_UINT; break; default: unreachable("Invalid bpb"); } map->staging = iris_resource_create(pscreen, &templ); assert(map->staging); if (templ.target != PIPE_BUFFER) { struct isl_surf *surf = &((struct iris_resource *) map->staging)->surf; xfer->stride = isl_surf_get_row_pitch_B(surf); xfer->layer_stride = isl_surf_get_array_pitch(surf); } if (!(xfer->usage & PIPE_TRANSFER_DISCARD_RANGE)) { iris_copy_region(map->blorp, map->batch, map->staging, 0, extra, 0, 0, xfer->resource, xfer->level, box); /* Ensure writes to the staging BO land before we map it below. */ iris_emit_pipe_control_flush(map->batch, PIPE_CONTROL_RENDER_TARGET_FLUSH | PIPE_CONTROL_CS_STALL); } struct iris_bo *staging_bo = iris_resource_bo(map->staging); if (iris_batch_references(map->batch, staging_bo)) iris_batch_flush(map->batch); map->ptr = iris_bo_map(map->dbg, staging_bo, xfer->usage) + extra; map->unmap = iris_unmap_copy_region; } static void get_image_offset_el(struct isl_surf *surf, unsigned level, unsigned z, unsigned *out_x0_el, unsigned *out_y0_el) { if (surf->dim == ISL_SURF_DIM_3D) { isl_surf_get_image_offset_el(surf, level, 0, z, out_x0_el, out_y0_el); } else { isl_surf_get_image_offset_el(surf, level, z, 0, out_x0_el, out_y0_el); } } /** * Get pointer offset into stencil buffer. * * The stencil buffer is W tiled. Since the GTT is incapable of W fencing, we * must decode the tile's layout in software. * * See * - PRM, 2011 Sandy Bridge, Volume 1, Part 2, Section 4.5.2.1 W-Major Tile * Format. * - PRM, 2011 Sandy Bridge, Volume 1, Part 2, Section 4.5.3 Tiling Algorithm * * Even though the returned offset is always positive, the return type is * signed due to * commit e8b1c6d6f55f5be3bef25084fdd8b6127517e137 * mesa: Fix return type of _mesa_get_format_bytes() (#37351) */ static intptr_t s8_offset(uint32_t stride, uint32_t x, uint32_t y, bool swizzled) { uint32_t tile_size = 4096; uint32_t tile_width = 64; uint32_t tile_height = 64; uint32_t row_size = 64 * stride / 2; /* Two rows are interleaved. */ uint32_t tile_x = x / tile_width; uint32_t tile_y = y / tile_height; /* The byte's address relative to the tile's base addres. */ uint32_t byte_x = x % tile_width; uint32_t byte_y = y % tile_height; uintptr_t u = tile_y * row_size + tile_x * tile_size + 512 * (byte_x / 8) + 64 * (byte_y / 8) + 32 * ((byte_y / 4) % 2) + 16 * ((byte_x / 4) % 2) + 8 * ((byte_y / 2) % 2) + 4 * ((byte_x / 2) % 2) + 2 * (byte_y % 2) + 1 * (byte_x % 2); if (swizzled) { /* adjust for bit6 swizzling */ if (((byte_x / 8) % 2) == 1) { if (((byte_y / 8) % 2) == 0) { u += 64; } else { u -= 64; } } } return u; } static void iris_unmap_s8(struct iris_transfer *map) { struct pipe_transfer *xfer = &map->base; const struct pipe_box *box = &xfer->box; struct iris_resource *res = (struct iris_resource *) xfer->resource; struct isl_surf *surf = &res->surf; const bool has_swizzling = false; if (xfer->usage & PIPE_TRANSFER_WRITE) { uint8_t *untiled_s8_map = map->ptr; uint8_t *tiled_s8_map = iris_bo_map(map->dbg, res->bo, xfer->usage | MAP_RAW); for (int s = 0; s < box->depth; s++) { unsigned x0_el, y0_el; get_image_offset_el(surf, xfer->level, box->z + s, &x0_el, &y0_el); for (uint32_t y = 0; y < box->height; y++) { for (uint32_t x = 0; x < box->width; x++) { ptrdiff_t offset = s8_offset(surf->row_pitch_B, x0_el + box->x + x, y0_el + box->y + y, has_swizzling); tiled_s8_map[offset] = untiled_s8_map[s * xfer->layer_stride + y * xfer->stride + x]; } } } } free(map->buffer); } static void iris_map_s8(struct iris_transfer *map) { struct pipe_transfer *xfer = &map->base; const struct pipe_box *box = &xfer->box; struct iris_resource *res = (struct iris_resource *) xfer->resource; struct isl_surf *surf = &res->surf; xfer->stride = surf->row_pitch_B; xfer->layer_stride = xfer->stride * box->height; /* The tiling and detiling functions require that the linear buffer has * a 16-byte alignment (that is, its `x0` is 16-byte aligned). Here we * over-allocate the linear buffer to get the proper alignment. */ map->buffer = map->ptr = malloc(xfer->layer_stride * box->depth); assert(map->buffer); const bool has_swizzling = false; /* One of either READ_BIT or WRITE_BIT or both is set. READ_BIT implies no * INVALIDATE_RANGE_BIT. WRITE_BIT needs the original values read in unless * invalidate is set, since we'll be writing the whole rectangle from our * temporary buffer back out. */ if (!(xfer->usage & PIPE_TRANSFER_DISCARD_RANGE)) { uint8_t *untiled_s8_map = map->ptr; uint8_t *tiled_s8_map = iris_bo_map(map->dbg, res->bo, xfer->usage | MAP_RAW); for (int s = 0; s < box->depth; s++) { unsigned x0_el, y0_el; get_image_offset_el(surf, xfer->level, box->z + s, &x0_el, &y0_el); for (uint32_t y = 0; y < box->height; y++) { for (uint32_t x = 0; x < box->width; x++) { ptrdiff_t offset = s8_offset(surf->row_pitch_B, x0_el + box->x + x, y0_el + box->y + y, has_swizzling); untiled_s8_map[s * xfer->layer_stride + y * xfer->stride + x] = tiled_s8_map[offset]; } } } } map->unmap = iris_unmap_s8; } /* Compute extent parameters for use with tiled_memcpy functions. * xs are in units of bytes and ys are in units of strides. */ static inline void tile_extents(struct isl_surf *surf, const struct pipe_box *box, unsigned level, int z, unsigned *x1_B, unsigned *x2_B, unsigned *y1_el, unsigned *y2_el) { const struct isl_format_layout *fmtl = isl_format_get_layout(surf->format); const unsigned cpp = fmtl->bpb / 8; assert(box->x % fmtl->bw == 0); assert(box->y % fmtl->bh == 0); unsigned x0_el, y0_el; get_image_offset_el(surf, level, box->z + z, &x0_el, &y0_el); *x1_B = (box->x / fmtl->bw + x0_el) * cpp; *y1_el = box->y / fmtl->bh + y0_el; *x2_B = (DIV_ROUND_UP(box->x + box->width, fmtl->bw) + x0_el) * cpp; *y2_el = DIV_ROUND_UP(box->y + box->height, fmtl->bh) + y0_el; } static void iris_unmap_tiled_memcpy(struct iris_transfer *map) { struct pipe_transfer *xfer = &map->base; const struct pipe_box *box = &xfer->box; struct iris_resource *res = (struct iris_resource *) xfer->resource; struct isl_surf *surf = &res->surf; const bool has_swizzling = false; if (xfer->usage & PIPE_TRANSFER_WRITE) { char *dst = iris_bo_map(map->dbg, res->bo, xfer->usage | MAP_RAW); for (int s = 0; s < box->depth; s++) { unsigned x1, x2, y1, y2; tile_extents(surf, box, xfer->level, s, &x1, &x2, &y1, &y2); void *ptr = map->ptr + s * xfer->layer_stride; isl_memcpy_linear_to_tiled(x1, x2, y1, y2, dst, ptr, surf->row_pitch_B, xfer->stride, has_swizzling, surf->tiling, ISL_MEMCPY); } } os_free_aligned(map->buffer); map->buffer = map->ptr = NULL; } static void iris_map_tiled_memcpy(struct iris_transfer *map) { struct pipe_transfer *xfer = &map->base; const struct pipe_box *box = &xfer->box; struct iris_resource *res = (struct iris_resource *) xfer->resource; struct isl_surf *surf = &res->surf; xfer->stride = ALIGN(surf->row_pitch_B, 16); xfer->layer_stride = xfer->stride * box->height; unsigned x1, x2, y1, y2; tile_extents(surf, box, xfer->level, 0, &x1, &x2, &y1, &y2); /* The tiling and detiling functions require that the linear buffer has * a 16-byte alignment (that is, its `x0` is 16-byte aligned). Here we * over-allocate the linear buffer to get the proper alignment. */ map->buffer = os_malloc_aligned(xfer->layer_stride * box->depth, 16); assert(map->buffer); map->ptr = (char *)map->buffer + (x1 & 0xf); const bool has_swizzling = false; // XXX: PIPE_TRANSFER_READ? if (!(xfer->usage & PIPE_TRANSFER_DISCARD_RANGE)) { char *src = iris_bo_map(map->dbg, res->bo, xfer->usage | MAP_RAW); for (int s = 0; s < box->depth; s++) { unsigned x1, x2, y1, y2; tile_extents(surf, box, xfer->level, s, &x1, &x2, &y1, &y2); /* Use 's' rather than 'box->z' to rebase the first slice to 0. */ void *ptr = map->ptr + s * xfer->layer_stride; isl_memcpy_tiled_to_linear(x1, x2, y1, y2, ptr, src, xfer->stride, surf->row_pitch_B, has_swizzling, surf->tiling, ISL_MEMCPY_STREAMING_LOAD); } } map->unmap = iris_unmap_tiled_memcpy; } static void iris_map_direct(struct iris_transfer *map) { struct pipe_transfer *xfer = &map->base; struct pipe_box *box = &xfer->box; struct iris_resource *res = (struct iris_resource *) xfer->resource; void *ptr = iris_bo_map(map->dbg, res->bo, xfer->usage); if (res->base.target == PIPE_BUFFER) { xfer->stride = 0; xfer->layer_stride = 0; map->ptr = ptr + box->x; } else { struct isl_surf *surf = &res->surf; const struct isl_format_layout *fmtl = isl_format_get_layout(surf->format); const unsigned cpp = fmtl->bpb / 8; unsigned x0_el, y0_el; get_image_offset_el(surf, xfer->level, box->z, &x0_el, &y0_el); xfer->stride = isl_surf_get_row_pitch_B(surf); xfer->layer_stride = isl_surf_get_array_pitch(surf); map->ptr = ptr + (y0_el + box->y) * xfer->stride + (x0_el + box->x) * cpp; } } static void * iris_transfer_map(struct pipe_context *ctx, struct pipe_resource *resource, unsigned level, enum pipe_transfer_usage usage, const struct pipe_box *box, struct pipe_transfer **ptransfer) { struct iris_context *ice = (struct iris_context *)ctx; struct iris_resource *res = (struct iris_resource *)resource; struct isl_surf *surf = &res->surf; /* If we can discard the whole resource, we can also discard the * subrange being accessed. */ if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) usage |= PIPE_TRANSFER_DISCARD_RANGE; bool map_would_stall = false; if (resource->target != PIPE_BUFFER) { iris_resource_access_raw(ice, &ice->batches[IRIS_BATCH_RENDER], res, level, box->z, box->depth, usage & PIPE_TRANSFER_WRITE); } if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) { map_would_stall = iris_bo_busy(res->bo); for (int i = 0; i < IRIS_BATCH_COUNT; i++) map_would_stall |= iris_batch_references(&ice->batches[i], res->bo); if (map_would_stall && (usage & PIPE_TRANSFER_DONTBLOCK) && (usage & PIPE_TRANSFER_MAP_DIRECTLY)) return NULL; } if (surf->tiling != ISL_TILING_LINEAR && (usage & PIPE_TRANSFER_MAP_DIRECTLY)) return NULL; struct iris_transfer *map = slab_alloc(&ice->transfer_pool); struct pipe_transfer *xfer = &map->base; if (!map) return NULL; memset(map, 0, sizeof(*map)); map->dbg = &ice->dbg; pipe_resource_reference(&xfer->resource, resource); xfer->level = level; xfer->usage = usage; xfer->box = *box; *ptransfer = xfer; xfer->usage &= (PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE | PIPE_TRANSFER_UNSYNCHRONIZED | PIPE_TRANSFER_PERSISTENT | PIPE_TRANSFER_COHERENT | PIPE_TRANSFER_DISCARD_RANGE); /* Avoid using GPU copies for persistent/coherent buffers, as the idea * there is to access them simultaneously on the CPU & GPU. This also * avoids trying to use GPU copies for our u_upload_mgr buffers which * contain state we're constructing for a GPU draw call, which would * kill us with infinite stack recursion. */ bool no_gpu = usage & (PIPE_TRANSFER_PERSISTENT | PIPE_TRANSFER_COHERENT | PIPE_TRANSFER_MAP_DIRECTLY); /* GPU copies are not useful for buffer reads. Instead of stalling to * read from the original buffer, we'd simply copy it to a temporary... * then stall (a bit longer) to read from that buffer. * * Images are less clear-cut. Color resolves are destructive, removing * the underlying compression, so we'd rather blit the data to a linear * temporary and map that, to avoid the resolve. (It might be better to * a tiled temporary and use the tiled_memcpy paths...) */ if (!(usage & PIPE_TRANSFER_DISCARD_RANGE) && res->aux.usage != ISL_AUX_USAGE_CCS_E && res->aux.usage != ISL_AUX_USAGE_CCS_D) { no_gpu = true; } if (map_would_stall && !no_gpu) { /* If we need a synchronous mapping and the resource is busy, * we copy to/from a linear temporary buffer using the GPU. */ map->batch = &ice->batches[IRIS_BATCH_RENDER]; map->blorp = &ice->blorp; iris_map_copy_region(map); } else { /* Otherwise we're free to map on the CPU. Flush if needed. */ if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) { for (int i = 0; i < IRIS_BATCH_COUNT; i++) { if (iris_batch_references(&ice->batches[i], res->bo)) iris_batch_flush(&ice->batches[i]); } } if (surf->tiling == ISL_TILING_W) { /* TODO: Teach iris_map_tiled_memcpy about W-tiling... */ iris_map_s8(map); } else if (surf->tiling != ISL_TILING_LINEAR) { iris_map_tiled_memcpy(map); } else { iris_map_direct(map); } } return map->ptr; } static void iris_transfer_flush_region(struct pipe_context *ctx, struct pipe_transfer *xfer, const struct pipe_box *box) { struct iris_context *ice = (struct iris_context *)ctx; struct iris_resource *res = (struct iris_resource *) xfer->resource; for (int i = 0; i < IRIS_BATCH_COUNT; i++) { if (ice->batches[i].contains_draw || ice->batches[i].cache.render->entries) { iris_batch_maybe_flush(&ice->batches[i], 24); iris_flush_and_dirty_for_history(ice, &ice->batches[i], res); } } } static void iris_transfer_unmap(struct pipe_context *ctx, struct pipe_transfer *xfer) { struct iris_context *ice = (struct iris_context *)ctx; struct iris_transfer *map = (void *) xfer; struct iris_resource *res = (struct iris_resource *) xfer->resource; if (map->unmap) map->unmap(map); for (int i = 0; i < IRIS_BATCH_COUNT; i++) { if (ice->batches[i].contains_draw || ice->batches[i].cache.render->entries) { iris_batch_maybe_flush(&ice->batches[i], 24); iris_flush_and_dirty_for_history(ice, &ice->batches[i], res); } } pipe_resource_reference(&xfer->resource, NULL); slab_free(&ice->transfer_pool, map); } static void iris_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource) { struct iris_context *ice = (struct iris_context *)ctx; struct iris_batch *render_batch = &ice->batches[IRIS_BATCH_RENDER]; struct iris_resource *res = (void *) resource; const struct isl_drm_modifier_info *mod = res->mod_info; iris_resource_prepare_access(ice, render_batch, res, 0, INTEL_REMAINING_LEVELS, 0, INTEL_REMAINING_LAYERS, mod ? mod->aux_usage : ISL_AUX_USAGE_NONE, mod ? mod->supports_clear_color : false); } void iris_flush_and_dirty_for_history(struct iris_context *ice, struct iris_batch *batch, struct iris_resource *res) { if (res->base.target != PIPE_BUFFER) return; unsigned flush = PIPE_CONTROL_CS_STALL; /* We've likely used the rendering engine (i.e. BLORP) to write to this * surface. Flush the render cache so the data actually lands. */ if (batch->name != IRIS_BATCH_COMPUTE) flush |= PIPE_CONTROL_RENDER_TARGET_FLUSH; uint64_t dirty = 0ull; if (res->bind_history & PIPE_BIND_CONSTANT_BUFFER) { flush |= PIPE_CONTROL_CONST_CACHE_INVALIDATE | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; dirty |= IRIS_DIRTY_CONSTANTS_VS | IRIS_DIRTY_CONSTANTS_TCS | IRIS_DIRTY_CONSTANTS_TES | IRIS_DIRTY_CONSTANTS_GS | IRIS_DIRTY_CONSTANTS_FS | IRIS_DIRTY_CONSTANTS_CS | IRIS_ALL_DIRTY_BINDINGS; } if (res->bind_history & PIPE_BIND_SAMPLER_VIEW) flush |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; if (res->bind_history & (PIPE_BIND_VERTEX_BUFFER | PIPE_BIND_INDEX_BUFFER)) flush |= PIPE_CONTROL_VF_CACHE_INVALIDATE; if (res->bind_history & (PIPE_BIND_SHADER_BUFFER | PIPE_BIND_SHADER_IMAGE)) flush |= PIPE_CONTROL_DATA_CACHE_FLUSH; iris_emit_pipe_control_flush(batch, flush); ice->state.dirty |= dirty; } bool iris_resource_set_clear_color(struct iris_context *ice, struct iris_resource *res, union isl_color_value color) { if (memcmp(&res->aux.clear_color, &color, sizeof(color)) != 0) { res->aux.clear_color = color; return true; } return false; } union isl_color_value iris_resource_get_clear_color(const struct iris_resource *res, struct iris_bo **clear_color_bo, uint64_t *clear_color_offset) { assert(res->aux.bo); if (clear_color_bo) *clear_color_bo = res->aux.clear_color_bo; if (clear_color_offset) *clear_color_offset = res->aux.clear_color_offset; return res->aux.clear_color; } static enum pipe_format iris_resource_get_internal_format(struct pipe_resource *p_res) { struct iris_resource *res = (void *) p_res; return res->internal_format; } static const struct u_transfer_vtbl transfer_vtbl = { .resource_create = iris_resource_create, .resource_destroy = iris_resource_destroy, .transfer_map = iris_transfer_map, .transfer_unmap = iris_transfer_unmap, .transfer_flush_region = iris_transfer_flush_region, .get_internal_format = iris_resource_get_internal_format, .set_stencil = iris_resource_set_separate_stencil, .get_stencil = iris_resource_get_separate_stencil, }; void iris_init_screen_resource_functions(struct pipe_screen *pscreen) { pscreen->resource_create_with_modifiers = iris_resource_create_with_modifiers; pscreen->resource_create = u_transfer_helper_resource_create; pscreen->resource_from_user_memory = iris_resource_from_user_memory; pscreen->resource_from_handle = iris_resource_from_handle; pscreen->resource_get_handle = iris_resource_get_handle; pscreen->resource_destroy = u_transfer_helper_resource_destroy; pscreen->transfer_helper = u_transfer_helper_create(&transfer_vtbl, true, true, false, true); } void iris_init_resource_functions(struct pipe_context *ctx) { ctx->flush_resource = iris_flush_resource; ctx->transfer_map = u_transfer_helper_transfer_map; ctx->transfer_flush_region = u_transfer_helper_transfer_flush_region; ctx->transfer_unmap = u_transfer_helper_transfer_unmap; ctx->buffer_subdata = u_default_buffer_subdata; ctx->texture_subdata = u_default_texture_subdata; }