From 9dd3613073aa2491cef440725fdfa0cf1e8f1a42 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= Date: Tue, 17 Nov 2009 09:46:56 -0500 Subject: Drop shared-core, bsd-core, linux-core and scripts subdirs --- bsd-core/drm_context.c | 320 ------------------------------------------------- 1 file changed, 320 deletions(-) delete mode 100644 bsd-core/drm_context.c (limited to 'bsd-core/drm_context.c') diff --git a/bsd-core/drm_context.c b/bsd-core/drm_context.c deleted file mode 100644 index 4dddd9c8..00000000 --- a/bsd-core/drm_context.c +++ /dev/null @@ -1,320 +0,0 @@ -/*- - * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS 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. - * - * Authors: - * Rickard E. (Rik) Faith - * Gareth Hughes - * - */ - -/** @file drm_context.c - * Implementation of the context management ioctls. - */ - -#include "drmP.h" - -/* ================================================================ - * Context bitmap support - */ - -void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle) -{ - if (ctx_handle < 0 || ctx_handle >= DRM_MAX_CTXBITMAP || - dev->ctx_bitmap == NULL) { - DRM_ERROR("Attempt to free invalid context handle: %d\n", - ctx_handle); - return; - } - - DRM_LOCK(); - clear_bit(ctx_handle, dev->ctx_bitmap); - dev->context_sareas[ctx_handle] = NULL; - DRM_UNLOCK(); - return; -} - -int drm_ctxbitmap_next(struct drm_device *dev) -{ - int bit; - - if (dev->ctx_bitmap == NULL) - return -1; - - DRM_LOCK(); - bit = find_first_zero_bit(dev->ctx_bitmap, DRM_MAX_CTXBITMAP); - if (bit >= DRM_MAX_CTXBITMAP) { - DRM_UNLOCK(); - return -1; - } - - set_bit(bit, dev->ctx_bitmap); - DRM_DEBUG("drm_ctxbitmap_next bit : %d\n", bit); - if ((bit+1) > dev->max_context) { - dev->max_context = (bit+1); - if (dev->context_sareas != NULL) { - drm_local_map_t **ctx_sareas; - - ctx_sareas = realloc(dev->context_sareas, - dev->max_context * sizeof(*dev->context_sareas), - DRM_MEM_SAREA, M_NOWAIT); - if (ctx_sareas == NULL) { - clear_bit(bit, dev->ctx_bitmap); - DRM_UNLOCK(); - return -1; - } - dev->context_sareas = ctx_sareas; - dev->context_sareas[bit] = NULL; - } else { - /* max_context == 1 at this point */ - dev->context_sareas = malloc(dev->max_context * - sizeof(*dev->context_sareas), DRM_MEM_SAREA, - M_NOWAIT); - if (dev->context_sareas == NULL) { - clear_bit(bit, dev->ctx_bitmap); - DRM_UNLOCK(); - return -1; - } - dev->context_sareas[bit] = NULL; - } - } - DRM_UNLOCK(); - return bit; -} - -int drm_ctxbitmap_init(struct drm_device *dev) -{ - int i; - int temp; - - DRM_LOCK(); - dev->ctx_bitmap = malloc(PAGE_SIZE, DRM_MEM_CTXBITMAP, - M_NOWAIT | M_ZERO); - if (dev->ctx_bitmap == NULL) { - DRM_UNLOCK(); - return ENOMEM; - } - dev->context_sareas = NULL; - dev->max_context = -1; - DRM_UNLOCK(); - - for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) { - temp = drm_ctxbitmap_next(dev); - DRM_DEBUG("drm_ctxbitmap_init : %d\n", temp); - } - - return 0; -} - -void drm_ctxbitmap_cleanup(struct drm_device *dev) -{ - DRM_LOCK(); - if (dev->context_sareas != NULL) - free(dev->context_sareas, DRM_MEM_SAREA); - free(dev->ctx_bitmap, DRM_MEM_CTXBITMAP); - DRM_UNLOCK(); -} - -/* ================================================================ - * Per Context SAREA Support - */ - -int drm_getsareactx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx_priv_map *request = data; - drm_local_map_t *map; - - DRM_LOCK(); - if (dev->max_context < 0 || - request->ctx_id >= (unsigned) dev->max_context) { - DRM_UNLOCK(); - return EINVAL; - } - - map = dev->context_sareas[request->ctx_id]; - DRM_UNLOCK(); - - request->handle = map->handle; - - return 0; -} - -int drm_setsareactx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx_priv_map *request = data; - drm_local_map_t *map = NULL; - - DRM_LOCK(); - TAILQ_FOREACH(map, &dev->maplist, link) { - if (map->handle == request->handle) { - if (dev->max_context < 0) - goto bad; - if (request->ctx_id >= (unsigned) dev->max_context) - goto bad; - dev->context_sareas[request->ctx_id] = map; - DRM_UNLOCK(); - return 0; - } - } - -bad: - DRM_UNLOCK(); - return EINVAL; -} - -/* ================================================================ - * The actual DRM context handling routines - */ - -int drm_context_switch(struct drm_device *dev, int old, int new) -{ - if (test_and_set_bit(0, &dev->context_flag)) { - DRM_ERROR("Reentering -- FIXME\n"); - return EBUSY; - } - - DRM_DEBUG("Context switch from %d to %d\n", old, new); - - if (new == dev->last_context) { - clear_bit(0, &dev->context_flag); - return 0; - } - - return 0; -} - -int drm_context_switch_complete(struct drm_device *dev, int new) -{ - dev->last_context = new; /* PRE/POST: This is the _only_ writer. */ - - if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { - DRM_ERROR("Lock isn't held after context switch\n"); - } - - /* If a context switch is ever initiated - when the kernel holds the lock, release - that lock here. */ - clear_bit(0, &dev->context_flag); - - return 0; -} - -int drm_resctx(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_ctx_res *res = data; - struct drm_ctx ctx; - int i; - - if (res->count >= DRM_RESERVED_CONTEXTS) { - bzero(&ctx, sizeof(ctx)); - for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) { - ctx.handle = i; - if (DRM_COPY_TO_USER(&res->contexts[i], - &ctx, sizeof(ctx))) - return EFAULT; - } - } - res->count = DRM_RESERVED_CONTEXTS; - - return 0; -} - -int drm_addctx(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - ctx->handle = drm_ctxbitmap_next(dev); - if (ctx->handle == DRM_KERNEL_CONTEXT) { - /* Skip kernel's context and get a new one. */ - ctx->handle = drm_ctxbitmap_next(dev); - } - DRM_DEBUG("%d\n", ctx->handle); - if (ctx->handle == -1) { - DRM_DEBUG("Not enough free contexts.\n"); - /* Should this return -EBUSY instead? */ - return ENOMEM; - } - - if (dev->driver->context_ctor && ctx->handle != DRM_KERNEL_CONTEXT) { - DRM_LOCK(); - dev->driver->context_ctor(dev, ctx->handle); - DRM_UNLOCK(); - } - - return 0; -} - -int drm_modctx(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - /* This does nothing */ - return 0; -} - -int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - /* This is 0, because we don't handle any context flags */ - ctx->flags = 0; - - return 0; -} - -int drm_switchctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - DRM_DEBUG("%d\n", ctx->handle); - return drm_context_switch(dev, dev->last_context, ctx->handle); -} - -int drm_newctx(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - DRM_DEBUG("%d\n", ctx->handle); - drm_context_switch_complete(dev, ctx->handle); - - return 0; -} - -int drm_rmctx(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - DRM_DEBUG("%d\n", ctx->handle); - if (ctx->handle != DRM_KERNEL_CONTEXT) { - if (dev->driver->context_dtor) { - DRM_LOCK(); - dev->driver->context_dtor(dev, ctx->handle); - DRM_UNLOCK(); - } - - drm_ctxbitmap_free(dev, ctx->handle); - } - - return 0; -} -- cgit v1.2.3