/************************************************************************** * * Copyright 2008 VMware, Inc. * Copyright 2014 Broadcom * Copyright 2018 Alyssa Rosenzweig * All Rights Reserved. * * 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, sub license, 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 (including the * next paragraph) 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 NON-INFRINGEMENT. * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. * **************************************************************************/ #include #include #include #include "state_tracker/winsys_handle.h" #include "util/u_format.h" #include "util/u_memory.h" #include "util/u_surface.h" #include "util/u_transfer.h" #include "util/u_transfer_helper.h" #include "pan_context.h" #include "pan_screen.h" #include "pan_resource.h" #include "pan_swizzle.h" static struct pipe_resource * panfrost_resource_from_handle(struct pipe_screen *pscreen, const struct pipe_resource *templat, struct winsys_handle *whandle, unsigned usage) { struct panfrost_screen *screen = pan_screen(pscreen); struct panfrost_resource *rsc; struct pipe_resource *prsc; assert(whandle->type == WINSYS_HANDLE_TYPE_FD); rsc = CALLOC_STRUCT(panfrost_resource); if (!rsc) return NULL; prsc = &rsc->base; *prsc = *templat; pipe_reference_init(&prsc->reference, 1); prsc->screen = pscreen; rsc->bo = screen->driver->import_bo(screen, whandle); return prsc; } static boolean panfrost_resource_get_handle(struct pipe_screen *pscreen, struct pipe_context *ctx, struct pipe_resource *pt, struct winsys_handle *handle, unsigned usage) { struct panfrost_screen *screen = pan_screen(pscreen); struct panfrost_resource *rsrc = (struct panfrost_resource *) pt; struct renderonly_scanout *scanout = rsrc->scanout; int bytes_per_pixel = util_format_get_blocksize(rsrc->base.format); int stride = bytes_per_pixel * rsrc->base.width0; /* TODO: Alignment? */ handle->stride = stride; handle->modifier = DRM_FORMAT_MOD_INVALID; if (handle->type == WINSYS_HANDLE_TYPE_SHARED) { printf("Missed shared handle\n"); return FALSE; } else if (handle->type == WINSYS_HANDLE_TYPE_KMS) { if (renderonly_get_handle(scanout, handle)) { return TRUE; } else { printf("Missed nonrenderonly KMS handle for resource %p with scanout %p\n", pt, scanout); return FALSE; } } else if (handle->type == WINSYS_HANDLE_TYPE_FD) { if (scanout) { struct drm_prime_handle args = { .handle = scanout->handle, .flags = DRM_CLOEXEC, }; int ret = drmIoctl(screen->ro->kms_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args); if (ret == -1) return FALSE; handle->handle = args.fd; return TRUE; } else { printf("Missed nonscanout FD handle\n"); assert(0); return FALSE; } } return FALSE; } static void panfrost_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc) { //fprintf(stderr, "TODO %s\n", __func__); } static void panfrost_blit(struct pipe_context *pipe, const struct pipe_blit_info *info) { /* STUB */ printf("Skipping blit XXX\n"); return; } static struct pipe_surface * panfrost_create_surface(struct pipe_context *pipe, struct pipe_resource *pt, const struct pipe_surface *surf_tmpl) { struct pipe_surface *ps = NULL; ps = CALLOC_STRUCT(pipe_surface); if (ps) { pipe_reference_init(&ps->reference, 1); pipe_resource_reference(&ps->texture, pt); ps->context = pipe; ps->format = surf_tmpl->format; if (pt->target != PIPE_BUFFER) { assert(surf_tmpl->u.tex.level <= pt->last_level); ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level); ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level); ps->u.tex.level = surf_tmpl->u.tex.level; ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer; ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer; } else { /* setting width as number of elements should get us correct renderbuffer width */ ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1; ps->height = pt->height0; ps->u.buf.first_element = surf_tmpl->u.buf.first_element; ps->u.buf.last_element = surf_tmpl->u.buf.last_element; assert(ps->u.buf.first_element <= ps->u.buf.last_element); assert(ps->u.buf.last_element < ps->width); } } return ps; } static void panfrost_surface_destroy(struct pipe_context *pipe, struct pipe_surface *surf) { assert(surf->texture); pipe_resource_reference(&surf->texture, NULL); free(surf); } static struct panfrost_bo * panfrost_create_bo(struct panfrost_screen *screen, const struct pipe_resource *template) { struct panfrost_bo *bo = CALLOC_STRUCT(panfrost_bo); int bytes_per_pixel = util_format_get_blocksize(template->format); int stride = bytes_per_pixel * template->width0; /* TODO: Alignment? */ size_t sz = stride; if (template->height0) sz *= template->height0; if (template->depth0) sz *= template->depth0; if ((template->bind & PIPE_BIND_RENDER_TARGET) || (template->bind & PIPE_BIND_DEPTH_STENCIL)) { /* TODO: Mipmapped RTs */ //assert(template->last_level == 0); /* Allocate the framebuffer as its own slab of GPU-accessible memory */ struct panfrost_memory slab; screen->driver->allocate_slab(screen, &slab, (sz / 4096) + 1, false, 0, 0, 0); /* Make the resource out of the slab */ bo->cpu[0] = slab.cpu; bo->gpu[0] = slab.gpu; } else { /* TODO: For linear resources, allocate straight on the cmdstream for * zero-copy operation */ /* Tiling textures is almost always faster, unless we only use it once */ bo->tiled = (template->usage != PIPE_USAGE_STREAM) && (template->bind & PIPE_BIND_SAMPLER_VIEW); if (bo->tiled) { /* For tiled, we don't map directly, so just malloc any old buffer */ for (int l = 0; l < (template->last_level + 1); ++l) { bo->cpu[l] = malloc(sz); //sz >>= 2; } } else { /* But for linear, we can! */ struct pb_slab_entry *entry = pb_slab_alloc(&screen->slabs, sz, HEAP_TEXTURE); struct panfrost_memory_entry *p_entry = (struct panfrost_memory_entry *) entry; struct panfrost_memory *backing = (struct panfrost_memory *) entry->slab; bo->entry[0] = p_entry; bo->cpu[0] = backing->cpu + p_entry->offset; bo->gpu[0] = backing->gpu + p_entry->offset; /* TODO: Mipmap */ } } return bo; } static struct pipe_resource * panfrost_resource_create(struct pipe_screen *screen, const struct pipe_resource *template) { struct panfrost_resource *so = CALLOC_STRUCT(panfrost_resource); struct panfrost_screen *pscreen = (struct panfrost_screen *) screen; so->base = *template; so->base.screen = screen; pipe_reference_init(&so->base.reference, 1); /* Make sure we're familiar */ switch (template->target) { case PIPE_BUFFER: case PIPE_TEXTURE_1D: case PIPE_TEXTURE_2D: case PIPE_TEXTURE_3D: case PIPE_TEXTURE_RECT: break; default: fprintf(stderr, "Unknown texture target %d\n", template->target); assert(0); } if ((template->bind & PIPE_BIND_RENDER_TARGET) || (template->bind & PIPE_BIND_DEPTH_STENCIL)) { if (template->bind & PIPE_BIND_DISPLAY_TARGET || template->bind & PIPE_BIND_SCANOUT || template->bind & PIPE_BIND_SHARED) { struct pipe_resource scanout_templat = *template; struct renderonly_scanout *scanout; struct winsys_handle handle; /* TODO: align width0 and height0? */ scanout = renderonly_scanout_for_resource(&scanout_templat, pscreen->ro, &handle); if (!scanout) return NULL; assert(handle.type == WINSYS_HANDLE_TYPE_FD); /* TODO: handle modifiers? */ so = pan_resource(screen->resource_from_handle(screen, template, &handle, PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE)); close(handle.handle); if (!so) return NULL; so->scanout = scanout; pscreen->display_target = so; } else { so->bo = panfrost_create_bo(pscreen, template); } } else { so->bo = panfrost_create_bo(pscreen, template); } printf("Created resource %p with scanout %p\n", so, so->scanout); return (struct pipe_resource *)so; } static void panfrost_destroy_bo(struct panfrost_screen *screen, struct panfrost_bo *pbo) { struct panfrost_bo *bo = (struct panfrost_bo *)pbo; if (bo->tiled) { /* CPU is all malloc'ed, so just plain ol' free needed */ for (int l = 0; bo->cpu[l]; l++) { free(bo->cpu[l]); } } else if (bo->entry[0] != NULL) { bo->entry[0]->freed = true; pb_slab_free(&screen->slabs, &bo->entry[0]->base); } else { /* TODO */ printf("--leaking main allocation--\n"); } if (bo->has_afbc) { /* TODO */ printf("--leaking afbc--\n"); } if (bo->has_checksum) { /* TODO */ printf("--leaking checksum--\n"); } } static void panfrost_resource_destroy(struct pipe_screen *screen, struct pipe_resource *pt) { struct panfrost_screen *pscreen = panfrost_screen(screen); struct panfrost_resource *rsrc = (struct panfrost_resource *) pt; if (rsrc->scanout) renderonly_scanout_destroy(rsrc->scanout, pscreen->ro); if (rsrc->bo) panfrost_destroy_bo(pscreen, rsrc->bo); FREE(rsrc); } static uint8_t * panfrost_map_bo(struct panfrost_context *ctx, struct pipe_transfer *transfer) { struct panfrost_bo *bo = (struct panfrost_bo *)pan_resource(transfer->resource)->bo; /* If non-zero level, it's a mipmapped resource and needs to be treated as such */ bo->is_mipmap |= transfer->level; if (transfer->usage & PIPE_TRANSFER_MAP_DIRECTLY && bo->tiled) { /* We cannot directly map tiled textures */ return NULL; } if (transfer->resource->bind & PIPE_BIND_DEPTH_STENCIL) { /* Mipmapped readpixels?! */ assert(transfer->level == 0); /* Set the CPU mapping to that of the depth/stencil buffer in memory, untiled */ bo->cpu[transfer->level] = ctx->depth_stencil_buffer.cpu; } return bo->cpu[transfer->level]; } static void * panfrost_transfer_map(struct pipe_context *pctx, struct pipe_resource *resource, unsigned level, unsigned usage, /* a combination of PIPE_TRANSFER_x */ const struct pipe_box *box, struct pipe_transfer **out_transfer) { struct panfrost_context *ctx = pan_context(pctx); int bytes_per_pixel = util_format_get_blocksize(resource->format); int stride = bytes_per_pixel * resource->width0; /* TODO: Alignment? */ uint8_t *cpu; struct pipe_transfer *transfer = CALLOC_STRUCT(pipe_transfer); transfer->level = level; transfer->usage = usage; transfer->box = *box; transfer->stride = stride; assert(!transfer->box.z); pipe_resource_reference(&transfer->resource, resource); *out_transfer = transfer; if (resource->bind & PIPE_BIND_DISPLAY_TARGET || resource->bind & PIPE_BIND_SCANOUT || resource->bind & PIPE_BIND_SHARED) { /* Mipmapped readpixels?! */ assert(level == 0); /* Force a flush -- kill the pipeline */ panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME); } cpu = panfrost_map_bo(ctx, transfer); if (cpu == NULL) return NULL; return cpu + transfer->box.x * bytes_per_pixel + transfer->box.y * stride; } static void panfrost_tile_texture(struct panfrost_screen *screen, struct panfrost_resource *rsrc, int level) { struct panfrost_bo *bo = (struct panfrost_bo *)rsrc->bo; int bytes_per_pixel = util_format_get_blocksize(rsrc->base.format); int stride = bytes_per_pixel * rsrc->base.width0; /* TODO: Alignment? */ int width = rsrc->base.width0 >> level; int height = rsrc->base.height0 >> level; /* Estimate swizzled bitmap size. Slight overestimates are fine. * Underestimates will result in memory corruption or worse. */ int swizzled_sz = panfrost_swizzled_size(width, height, bytes_per_pixel); /* Allocate the transfer given that known size but do not copy */ struct pb_slab_entry *entry = pb_slab_alloc(&screen->slabs, swizzled_sz, HEAP_TEXTURE); struct panfrost_memory_entry *p_entry = (struct panfrost_memory_entry *) entry; struct panfrost_memory *backing = (struct panfrost_memory *) entry->slab; uint8_t *swizzled = backing->cpu + p_entry->offset; /* Save the entry. But if there was already an entry here (from a * previous upload of the resource), free that one so we don't leak */ if (bo->entry[level] != NULL) { bo->entry[level]->freed = true; pb_slab_free(&screen->slabs, &bo->entry[level]->base); } bo->entry[level] = p_entry; bo->gpu[level] = backing->gpu + p_entry->offset; /* Run actual texture swizzle, writing directly to the mapped * GPU chunk we allocated */ panfrost_texture_swizzle(width, height, bytes_per_pixel, stride, bo->cpu[level], swizzled); } static void panfrost_unmap_bo(struct panfrost_context *ctx, struct pipe_transfer *transfer) { struct panfrost_bo *bo = (struct panfrost_bo *)pan_resource(transfer->resource)->bo; if (transfer->usage & PIPE_TRANSFER_WRITE) { if (transfer->resource->target == PIPE_TEXTURE_2D) { struct panfrost_resource *prsrc = (struct panfrost_resource *) transfer->resource; /* Gallium thinks writeback happens here; instead, this is our cue to tile */ if (bo->has_afbc) { printf("Warning: writes to afbc surface can't possibly work out well for you...\n"); } else if (bo->tiled) { struct pipe_context *gallium = (struct pipe_context *) ctx; struct panfrost_screen *screen = pan_screen(gallium->screen); panfrost_tile_texture(screen, prsrc, transfer->level); } } } } static void panfrost_transfer_unmap(struct pipe_context *pctx, struct pipe_transfer *transfer) { struct panfrost_context *ctx = pan_context(pctx); panfrost_unmap_bo(ctx, transfer); /* Derefence the resource */ pipe_resource_reference(&transfer->resource, NULL); /* Transfer itself is CALLOCed at the moment */ free(transfer); } static struct pb_slab * panfrost_slab_alloc(void *priv, unsigned heap, unsigned entry_size, unsigned group_index) { struct panfrost_screen *screen = (struct panfrost_screen *) priv; struct panfrost_memory *mem = CALLOC_STRUCT(panfrost_memory); size_t slab_size = (1 << (MAX_SLAB_ENTRY_SIZE + 1)); mem->slab.num_entries = slab_size / entry_size; mem->slab.num_free = mem->slab.num_entries; LIST_INITHEAD(&mem->slab.free); for (unsigned i = 0; i < mem->slab.num_entries; ++i) { /* Create a slab entry */ struct panfrost_memory_entry *entry = CALLOC_STRUCT(panfrost_memory_entry); entry->offset = entry_size * i; entry->base.slab = &mem->slab; entry->base.group_index = group_index; LIST_ADDTAIL(&entry->base.head, &mem->slab.free); } /* Actually allocate the memory from kernel-space. Mapped, same_va, no * special flags */ screen->driver->allocate_slab(screen, mem, slab_size / 4096, true, 0, 0, 0); return &mem->slab; } static bool panfrost_slab_can_reclaim(void *priv, struct pb_slab_entry *entry) { struct panfrost_memory_entry *p_entry = (struct panfrost_memory_entry *) entry; return p_entry->freed; } static void panfrost_slab_free(void *priv, struct pb_slab *slab) { /* STUB */ //struct panfrost_memory *mem = (struct panfrost_memory *) slab; printf("stub: Tried to free slab\n"); } static void panfrost_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc) { //fprintf(stderr, "TODO %s\n", __func__); } static const struct u_transfer_vtbl transfer_vtbl = { .resource_create = panfrost_resource_create, .resource_destroy = panfrost_resource_destroy, .transfer_map = panfrost_transfer_map, .transfer_unmap = panfrost_transfer_unmap, .transfer_flush_region = u_default_transfer_flush_region, //.get_internal_format = panfrost_resource_get_internal_format, //.set_stencil = panfrost_resource_set_stencil, //.get_stencil = panfrost_resource_get_stencil, }; void panfrost_resource_screen_init(struct panfrost_screen *pscreen) { //pscreen->base.resource_create_with_modifiers = // panfrost_resource_create_with_modifiers; pscreen->base.resource_create = u_transfer_helper_resource_create; pscreen->base.resource_destroy = u_transfer_helper_resource_destroy; pscreen->base.resource_from_handle = panfrost_resource_from_handle; pscreen->base.resource_get_handle = panfrost_resource_get_handle; pscreen->base.transfer_helper = u_transfer_helper_create(&transfer_vtbl, true, true, true, true); pb_slabs_init(&pscreen->slabs, MIN_SLAB_ENTRY_SIZE, MAX_SLAB_ENTRY_SIZE, 3, /* Number of heaps */ pscreen, panfrost_slab_can_reclaim, panfrost_slab_alloc, panfrost_slab_free); } void panfrost_resource_context_init(struct pipe_context *pctx) { pctx->transfer_map = u_transfer_helper_transfer_map; pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region; pctx->transfer_unmap = u_transfer_helper_transfer_unmap; pctx->buffer_subdata = u_default_buffer_subdata; pctx->create_surface = panfrost_create_surface; pctx->surface_destroy = panfrost_surface_destroy; pctx->resource_copy_region = util_resource_copy_region; pctx->blit = panfrost_blit; //pctx->generate_mipmap = panfrost_generate_mipmap; pctx->flush_resource = panfrost_flush_resource; pctx->invalidate_resource = panfrost_invalidate_resource; pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region; pctx->buffer_subdata = u_default_buffer_subdata; pctx->texture_subdata = u_default_texture_subdata; }