From: Keith Whitwell Date: Fri, 23 Oct 2009 22:36:02 +0000 (+0100) Subject: ws/i965: clone the i915 winsys X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b7efe646b66e617ff968cb69bad33308c3a2c06a;p=mesa.git ws/i965: clone the i915 winsys I'll want to rework this, not sure trying to share this code is a very good idea at least until the interfaces from the two drivers calm down. --- diff --git a/src/gallium/winsys/drm/i965/gem/Makefile b/src/gallium/winsys/drm/i965/gem/Makefile new file mode 100644 index 00000000000..0d6d4e37dbd --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/Makefile @@ -0,0 +1,16 @@ +TOP = ../../../../../.. +include $(TOP)/configs/current + +LIBNAME = inteldrm + +C_SOURCES = \ + intel_drm_batchbuffer.c \ + intel_drm_buffer.c \ + intel_drm_fence.c \ + intel_drm_api.c + +LIBRARY_INCLUDES = $(shell pkg-config libdrm --cflags-only-I) + +LIBRARY_DEFINES = $(shell pkg-config libdrm --cflags-only-other) + +include ../../../../Makefile.template diff --git a/src/gallium/winsys/drm/i965/gem/SConscript b/src/gallium/winsys/drm/i965/gem/SConscript new file mode 100644 index 00000000000..26717f391fa --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/SConscript @@ -0,0 +1,17 @@ +Import('*') + +env = drienv.Clone() + +inteldrm_sources = [ + 'intel_drm_api.c', + 'intel_drm_batchbuffer.c', + 'intel_drm_buffer.c', + 'intel_drm_fence.c', +] + +inteldrm = env.ConvenienceLibrary( + target ='inteldrm', + source = inteldrm_sources, +) + +Export('inteldrm') diff --git a/src/gallium/winsys/drm/i965/gem/intel_drm_api.c b/src/gallium/winsys/drm/i965/gem/intel_drm_api.c new file mode 100644 index 00000000000..9ed570ff6e4 --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/intel_drm_api.c @@ -0,0 +1,209 @@ + +#include "state_tracker/drm_api.h" + +#include "intel_drm_winsys.h" +#include "util/u_memory.h" + +#include "i915/i915_context.h" +#include "i915/i915_screen.h" + +#include "trace/tr_drm.h" + +/* + * Helper functions + */ + + +static void +intel_drm_get_device_id(unsigned int *device_id) +{ + char path[512]; + FILE *file; + void *shutup_gcc; + + /* + * FIXME: Fix this up to use a drm ioctl or whatever. + */ + + snprintf(path, sizeof(path), "/sys/class/drm/card0/device/device"); + file = fopen(path, "r"); + if (!file) { + return; + } + + shutup_gcc = fgets(path, sizeof(path), file); + sscanf(path, "%x", device_id); + fclose(file); +} + +static struct intel_buffer * +intel_drm_buffer_from_handle(struct intel_drm_winsys *idws, + const char* name, unsigned handle) +{ + struct intel_drm_buffer *buf = CALLOC_STRUCT(intel_drm_buffer); + uint32_t tile = 0, swizzle = 0; + + if (!buf) + return NULL; + + buf->magic = 0xDEAD1337; + buf->bo = drm_intel_bo_gem_create_from_name(idws->pools.gem, name, handle); + buf->flinked = TRUE; + buf->flink = handle; + + if (!buf->bo) + goto err; + + drm_intel_bo_get_tiling(buf->bo, &tile, &swizzle); + if (tile != INTEL_TILE_NONE) + buf->map_gtt = TRUE; + + return (struct intel_buffer *)buf; + +err: + FREE(buf); + return NULL; +} + + +/* + * Exported functions + */ + + +static struct pipe_texture * +intel_drm_texture_from_shared_handle(struct drm_api *api, + struct pipe_screen *screen, + struct pipe_texture *templ, + const char* name, + unsigned pitch, + unsigned handle) +{ + struct intel_drm_winsys *idws = intel_drm_winsys(i915_screen(screen)->iws); + struct intel_buffer *buffer; + + buffer = intel_drm_buffer_from_handle(idws, name, handle); + if (!buffer) + return NULL; + + return i915_texture_blanket_intel(screen, templ, pitch, buffer); +} + +static boolean +intel_drm_shared_handle_from_texture(struct drm_api *api, + struct pipe_screen *screen, + struct pipe_texture *texture, + unsigned *pitch, + unsigned *handle) +{ + struct intel_drm_buffer *buf = NULL; + struct intel_buffer *buffer = NULL; + if (!i915_get_texture_buffer_intel(texture, &buffer, pitch)) + return FALSE; + + buf = intel_drm_buffer(buffer); + if (!buf->flinked) { + if (drm_intel_bo_flink(buf->bo, &buf->flink)) + return FALSE; + buf->flinked = TRUE; + } + + *handle = buf->flink; + + return TRUE; +} + +static boolean +intel_drm_local_handle_from_texture(struct drm_api *api, + struct pipe_screen *screen, + struct pipe_texture *texture, + unsigned *pitch, + unsigned *handle) +{ + struct intel_buffer *buffer = NULL; + if (!i915_get_texture_buffer_intel(texture, &buffer, pitch)) + return FALSE; + + *handle = intel_drm_buffer(buffer)->bo->handle; + + return TRUE; +} + +static void +intel_drm_winsys_destroy(struct intel_winsys *iws) +{ + struct intel_drm_winsys *idws = intel_drm_winsys(iws); + + drm_intel_bufmgr_destroy(idws->pools.gem); + + FREE(idws); +} + +static struct pipe_screen * +intel_drm_create_screen(struct drm_api *api, int drmFD, + struct drm_create_screen_arg *arg) +{ + struct intel_drm_winsys *idws; + unsigned int deviceID; + + if (arg != NULL) { + switch(arg->mode) { + case DRM_CREATE_NORMAL: + break; + default: + return NULL; + } + } + + idws = CALLOC_STRUCT(intel_drm_winsys); + if (!idws) + return NULL; + + intel_drm_get_device_id(&deviceID); + + intel_drm_winsys_init_batchbuffer_functions(idws); + intel_drm_winsys_init_buffer_functions(idws); + intel_drm_winsys_init_fence_functions(idws); + + idws->fd = drmFD; + idws->id = deviceID; + idws->max_batch_size = 16 * 4096; + + idws->base.destroy = intel_drm_winsys_destroy; + + idws->pools.gem = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size); + drm_intel_bufmgr_gem_enable_reuse(idws->pools.gem); + + idws->softpipe = FALSE; + idws->dump_cmd = debug_get_bool_option("INTEL_DUMP_CMD", FALSE); + + return i915_create_screen(&idws->base, deviceID); +} + +static struct pipe_context * +intel_drm_create_context(struct drm_api *api, struct pipe_screen *screen) +{ + return i915_create_context(screen); +} + +static void +destroy(struct drm_api *api) +{ + +} + +struct drm_api intel_drm_api = +{ + .create_context = intel_drm_create_context, + .create_screen = intel_drm_create_screen, + .texture_from_shared_handle = intel_drm_texture_from_shared_handle, + .shared_handle_from_texture = intel_drm_shared_handle_from_texture, + .local_handle_from_texture = intel_drm_local_handle_from_texture, + .destroy = destroy, +}; + +struct drm_api * +drm_api_create() +{ + return trace_drm_create(&intel_drm_api); +} diff --git a/src/gallium/winsys/drm/i965/gem/intel_drm_batchbuffer.c b/src/gallium/winsys/drm/i965/gem/intel_drm_batchbuffer.c new file mode 100644 index 00000000000..5b4dafc8e41 --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/intel_drm_batchbuffer.c @@ -0,0 +1,244 @@ + +#include "intel_drm_winsys.h" +#include "util/u_memory.h" + +#include "i915_drm.h" + +#define BATCH_RESERVED 16 + +#define INTEL_DEFAULT_RELOCS 100 +#define INTEL_MAX_RELOCS 400 + +#define INTEL_BATCH_NO_CLIPRECTS 0x1 +#define INTEL_BATCH_CLIPRECTS 0x2 + +#undef INTEL_RUN_SYNC +#undef INTEL_MAP_BATCHBUFFER +#undef INTEL_MAP_GTT +#define INTEL_ALWAYS_FLUSH + +struct intel_drm_batchbuffer +{ + struct intel_batchbuffer base; + + size_t actual_size; + + drm_intel_bo *bo; +}; + +static INLINE struct intel_drm_batchbuffer * +intel_drm_batchbuffer(struct intel_batchbuffer *batch) +{ + return (struct intel_drm_batchbuffer *)batch; +} + +static void +intel_drm_batchbuffer_reset(struct intel_drm_batchbuffer *batch) +{ + struct intel_drm_winsys *idws = intel_drm_winsys(batch->base.iws); + int ret; + + if (batch->bo) + drm_intel_bo_unreference(batch->bo); + batch->bo = drm_intel_bo_alloc(idws->pools.gem, + "gallium3d_batchbuffer", + batch->actual_size, + 4096); + +#ifdef INTEL_MAP_BATCHBUFFER +#ifdef INTEL_MAP_GTT + ret = drm_intel_gem_bo_map_gtt(batch->bo); +#else + ret = drm_intel_bo_map(batch->bo, TRUE); +#endif + assert(ret == 0); + batch->base.map = batch->bo->virtual; +#else + (void)ret; +#endif + + memset(batch->base.map, 0, batch->actual_size); + batch->base.ptr = batch->base.map; + batch->base.size = batch->actual_size - BATCH_RESERVED; + batch->base.relocs = 0; +} + +static struct intel_batchbuffer * +intel_drm_batchbuffer_create(struct intel_winsys *iws) +{ + struct intel_drm_winsys *idws = intel_drm_winsys(iws); + struct intel_drm_batchbuffer *batch = CALLOC_STRUCT(intel_drm_batchbuffer); + + batch->actual_size = idws->max_batch_size; + +#ifdef INTEL_MAP_BATCHBUFFER + batch->base.map = NULL; +#else + batch->base.map = MALLOC(batch->actual_size); +#endif + batch->base.ptr = NULL; + batch->base.size = 0; + + batch->base.relocs = 0; + batch->base.max_relocs = 300;/*INTEL_DEFAULT_RELOCS;*/ + + batch->base.iws = iws; + + intel_drm_batchbuffer_reset(batch); + + return &batch->base; +} + +static int +intel_drm_batchbuffer_reloc(struct intel_batchbuffer *ibatch, + struct intel_buffer *buffer, + enum intel_buffer_usage usage, + unsigned pre_add) +{ + struct intel_drm_batchbuffer *batch = intel_drm_batchbuffer(ibatch); + unsigned write_domain = 0; + unsigned read_domain = 0; + unsigned offset; + int ret = 0; + + assert(batch->base.relocs < batch->base.max_relocs); + + if (usage == INTEL_USAGE_SAMPLER) { + write_domain = 0; + read_domain = I915_GEM_DOMAIN_SAMPLER; + + } else if (usage == INTEL_USAGE_RENDER) { + write_domain = I915_GEM_DOMAIN_RENDER; + read_domain = I915_GEM_DOMAIN_RENDER; + + } else if (usage == INTEL_USAGE_2D_TARGET) { + write_domain = I915_GEM_DOMAIN_RENDER; + read_domain = I915_GEM_DOMAIN_RENDER; + + } else if (usage == INTEL_USAGE_2D_SOURCE) { + write_domain = 0; + read_domain = I915_GEM_DOMAIN_RENDER; + + } else if (usage == INTEL_USAGE_VERTEX) { + write_domain = 0; + read_domain = I915_GEM_DOMAIN_VERTEX; + + } else { + assert(0); + return -1; + } + + offset = (unsigned)(batch->base.ptr - batch->base.map); + + ret = drm_intel_bo_emit_reloc(batch->bo, offset, + intel_bo(buffer), pre_add, + read_domain, + write_domain); + + ((uint32_t*)batch->base.ptr)[0] = intel_bo(buffer)->offset + pre_add; + batch->base.ptr += 4; + + if (!ret) + batch->base.relocs++; + + return ret; +} + +static void +intel_drm_batchbuffer_flush(struct intel_batchbuffer *ibatch, + struct pipe_fence_handle **fence) +{ + struct intel_drm_batchbuffer *batch = intel_drm_batchbuffer(ibatch); + unsigned used = 0; + int ret = 0; + int i; + + assert(intel_batchbuffer_space(ibatch) >= 0); + + used = batch->base.ptr - batch->base.map; + assert((used & 3) == 0); + + +#ifdef INTEL_ALWAYS_FLUSH + /* MI_FLUSH | FLUSH_MAP_CACHE */ + intel_batchbuffer_dword(ibatch, (0x4<<23)|(1<<0)); + used += 4; +#endif + + if ((used & 4) == 0) { + /* MI_NOOP */ + intel_batchbuffer_dword(ibatch, 0); + } + /* MI_BATCH_BUFFER_END */ + intel_batchbuffer_dword(ibatch, (0xA<<23)); + + used = batch->base.ptr - batch->base.map; + assert((used & 4) == 0); + +#ifdef INTEL_MAP_BATCHBUFFER +#ifdef INTEL_MAP_GTT + drm_intel_gem_bo_unmap_gtt(batch->bo); +#else + drm_intel_bo_unmap(batch->bo); +#endif +#else + drm_intel_bo_subdata(batch->bo, 0, used, batch->base.map); +#endif + + /* Do the sending to HW */ + ret = drm_intel_bo_exec(batch->bo, used, NULL, 0, 0); + assert(ret == 0); + + if (intel_drm_winsys(ibatch->iws)->dump_cmd) { + unsigned *ptr; + drm_intel_bo_map(batch->bo, FALSE); + ptr = (unsigned*)batch->bo->virtual; + + debug_printf("%s:\n", __func__); + for (i = 0; i < used / 4; i++, ptr++) { + debug_printf("\t%08x: %08x\n", i*4, *ptr); + } + + drm_intel_bo_unmap(batch->bo); + } else { +#ifdef INTEL_RUN_SYNC + drm_intel_bo_map(batch->bo, FALSE); + drm_intel_bo_unmap(batch->bo); +#endif + } + + if (fence) { + ibatch->iws->fence_reference(ibatch->iws, fence, NULL); + +#ifdef INTEL_RUN_SYNC + /* we run synced to GPU so just pass null */ + (*fence) = intel_drm_fence_create(NULL); +#else + (*fence) = intel_drm_fence_create(batch->bo); +#endif + } + + intel_drm_batchbuffer_reset(batch); +} + +static void +intel_drm_batchbuffer_destroy(struct intel_batchbuffer *ibatch) +{ + struct intel_drm_batchbuffer *batch = intel_drm_batchbuffer(ibatch); + + if (batch->bo) + drm_intel_bo_unreference(batch->bo); + +#ifndef INTEL_MAP_BATCHBUFFER + FREE(batch->base.map); +#endif + FREE(batch); +} + +void intel_drm_winsys_init_batchbuffer_functions(struct intel_drm_winsys *idws) +{ + idws->base.batchbuffer_create = intel_drm_batchbuffer_create; + idws->base.batchbuffer_reloc = intel_drm_batchbuffer_reloc; + idws->base.batchbuffer_flush = intel_drm_batchbuffer_flush; + idws->base.batchbuffer_destroy = intel_drm_batchbuffer_destroy; +} diff --git a/src/gallium/winsys/drm/i965/gem/intel_drm_buffer.c b/src/gallium/winsys/drm/i965/gem/intel_drm_buffer.c new file mode 100644 index 00000000000..ac4dd6e00e9 --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/intel_drm_buffer.c @@ -0,0 +1,154 @@ + +#include "intel_drm_winsys.h" +#include "util/u_memory.h" + +#include "i915_drm.h" + +static struct intel_buffer * +intel_drm_buffer_create(struct intel_winsys *iws, + unsigned size, unsigned alignment, + enum intel_buffer_type type) +{ + struct intel_drm_buffer *buf = CALLOC_STRUCT(intel_drm_buffer); + struct intel_drm_winsys *idws = intel_drm_winsys(iws); + drm_intel_bufmgr *pool; + char *name; + + if (!buf) + return NULL; + + buf->magic = 0xDEAD1337; + buf->flinked = FALSE; + buf->flink = 0; + buf->map_gtt = FALSE; + + if (type == INTEL_NEW_TEXTURE) { + name = "gallium3d_texture"; + pool = idws->pools.gem; + } else if (type == INTEL_NEW_VERTEX) { + name = "gallium3d_vertex"; + pool = idws->pools.gem; + buf->map_gtt = TRUE; + } else if (type == INTEL_NEW_SCANOUT) { + name = "gallium3d_scanout"; + pool = idws->pools.gem; + buf->map_gtt = TRUE; + } else { + assert(0); + name = "gallium3d_unknown"; + pool = idws->pools.gem; + } + + buf->bo = drm_intel_bo_alloc(pool, name, size, alignment); + + if (!buf->bo) + goto err; + + return (struct intel_buffer *)buf; + +err: + assert(0); + FREE(buf); + return NULL; +} + +static int +intel_drm_buffer_set_fence_reg(struct intel_winsys *iws, + struct intel_buffer *buffer, + unsigned stride, + enum intel_buffer_tile tile) +{ + struct intel_drm_buffer *buf = intel_drm_buffer(buffer); + assert(I915_TILING_NONE == INTEL_TILE_NONE); + assert(I915_TILING_X == INTEL_TILE_X); + assert(I915_TILING_Y == INTEL_TILE_Y); + + if (tile != INTEL_TILE_NONE) { + assert(buf->map_count == 0); + buf->map_gtt = TRUE; + } + + return drm_intel_bo_set_tiling(buf->bo, &tile, stride); +} + +static void * +intel_drm_buffer_map(struct intel_winsys *iws, + struct intel_buffer *buffer, + boolean write) +{ + struct intel_drm_buffer *buf = intel_drm_buffer(buffer); + drm_intel_bo *bo = intel_bo(buffer); + int ret = 0; + + assert(bo); + + if (buf->map_count) + goto out; + + if (buf->map_gtt) + ret = drm_intel_gem_bo_map_gtt(bo); + else + ret = drm_intel_bo_map(bo, write); + + buf->ptr = bo->virtual; + + assert(ret == 0); +out: + if (ret) + return NULL; + + buf->map_count++; + return buf->ptr; +} + +static void +intel_drm_buffer_unmap(struct intel_winsys *iws, + struct intel_buffer *buffer) +{ + struct intel_drm_buffer *buf = intel_drm_buffer(buffer); + + if (--buf->map_count) + return; + + if (buf->map_gtt) + drm_intel_gem_bo_unmap_gtt(intel_bo(buffer)); + else + drm_intel_bo_unmap(intel_bo(buffer)); +} + +static int +intel_drm_buffer_write(struct intel_winsys *iws, + struct intel_buffer *buffer, + size_t offset, + size_t size, + const void *data) +{ + struct intel_drm_buffer *buf = intel_drm_buffer(buffer); + + return drm_intel_bo_subdata(buf->bo, offset, size, (void*)data); +} + +static void +intel_drm_buffer_destroy(struct intel_winsys *iws, + struct intel_buffer *buffer) +{ + drm_intel_bo_unreference(intel_bo(buffer)); + +#ifdef DEBUG + intel_drm_buffer(buffer)->magic = 0; + intel_drm_buffer(buffer)->bo = NULL; +#endif + + FREE(buffer); +} + +void +intel_drm_winsys_init_buffer_functions(struct intel_drm_winsys *idws) +{ + idws->base.buffer_create = intel_drm_buffer_create; + idws->base.buffer_set_fence_reg = intel_drm_buffer_set_fence_reg; + idws->base.buffer_map = intel_drm_buffer_map; + idws->base.buffer_unmap = intel_drm_buffer_unmap; + idws->base.buffer_write = intel_drm_buffer_write; + idws->base.buffer_destroy = intel_drm_buffer_destroy; +} diff --git a/src/gallium/winsys/drm/i965/gem/intel_drm_fence.c b/src/gallium/winsys/drm/i965/gem/intel_drm_fence.c new file mode 100644 index 00000000000..e70bfe7b44e --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/intel_drm_fence.c @@ -0,0 +1,81 @@ + +#include "intel_drm_winsys.h" +#include "util/u_memory.h" +#include "pipe/p_refcnt.h" + +/** + * Because gem does not have fence's we have to create our own fences. + * + * They work by keeping the batchbuffer around and checking if that has + * been idled. If bo is NULL fence has expired. + */ +struct intel_drm_fence +{ + struct pipe_reference reference; + drm_intel_bo *bo; +}; + + +struct pipe_fence_handle * +intel_drm_fence_create(drm_intel_bo *bo) +{ + struct intel_drm_fence *fence = CALLOC_STRUCT(intel_drm_fence); + + pipe_reference_init(&fence->reference, 1); + /* bo is null if fence already expired */ + if (bo) { + drm_intel_bo_reference(bo); + fence->bo = bo; + } + + return (struct pipe_fence_handle *)fence; +} + +static void +intel_drm_fence_reference(struct intel_winsys *iws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence) +{ + struct intel_drm_fence *old = (struct intel_drm_fence *)*ptr; + struct intel_drm_fence *f = (struct intel_drm_fence *)fence; + + if (pipe_reference((struct pipe_reference**)ptr, &f->reference)) { + if (old->bo) + drm_intel_bo_unreference(old->bo); + FREE(old); + } +} + +static int +intel_drm_fence_signalled(struct intel_winsys *iws, + struct pipe_fence_handle *fence) +{ + assert(0); + + return 0; +} + +static int +intel_drm_fence_finish(struct intel_winsys *iws, + struct pipe_fence_handle *fence) +{ + struct intel_drm_fence *f = (struct intel_drm_fence *)fence; + + /* fence already expired */ + if (!f->bo) + return 0; + + drm_intel_bo_wait_rendering(f->bo); + drm_intel_bo_unreference(f->bo); + f->bo = NULL; + + return 0; +} + +void +intel_drm_winsys_init_fence_functions(struct intel_drm_winsys *idws) +{ + idws->base.fence_reference = intel_drm_fence_reference; + idws->base.fence_signalled = intel_drm_fence_signalled; + idws->base.fence_finish = intel_drm_fence_finish; +} diff --git a/src/gallium/winsys/drm/i965/gem/intel_drm_winsys.h b/src/gallium/winsys/drm/i965/gem/intel_drm_winsys.h new file mode 100644 index 00000000000..b4a60563ef4 --- /dev/null +++ b/src/gallium/winsys/drm/i965/gem/intel_drm_winsys.h @@ -0,0 +1,78 @@ + +#ifndef INTEL_DRM_WINSYS_H +#define INTEL_DRM_WINSYS_H + +#include "i915/intel_batchbuffer.h" + +#include "drm.h" +#include "intel_bufmgr.h" + + +/* + * Winsys + */ + + +struct intel_drm_winsys +{ + struct intel_winsys base; + + boolean softpipe; + boolean dump_cmd; + + int fd; /**< Drm file discriptor */ + + unsigned id; + + size_t max_batch_size; + + struct { + drm_intel_bufmgr *gem; + } pools; +}; + +static INLINE struct intel_drm_winsys * +intel_drm_winsys(struct intel_winsys *iws) +{ + return (struct intel_drm_winsys *)iws; +} + +struct intel_drm_winsys * intel_drm_winsys_create(int fd, unsigned pci_id); +struct pipe_fence_handle * intel_drm_fence_create(drm_intel_bo *bo); + +void intel_drm_winsys_init_batchbuffer_functions(struct intel_drm_winsys *idws); +void intel_drm_winsys_init_buffer_functions(struct intel_drm_winsys *idws); +void intel_drm_winsys_init_fence_functions(struct intel_drm_winsys *idws); + + +/* + * Buffer + */ + + +struct intel_drm_buffer { + unsigned magic; + + drm_intel_bo *bo; + + void *ptr; + unsigned map_count; + boolean map_gtt; + + boolean flinked; + unsigned flink; +}; + +static INLINE struct intel_drm_buffer * +intel_drm_buffer(struct intel_buffer *buffer) +{ + return (struct intel_drm_buffer *)buffer; +} + +static INLINE drm_intel_bo * +intel_bo(struct intel_buffer *buffer) +{ + return intel_drm_buffer(buffer)->bo; +} + +#endif