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/****************************************************************************
 * Copyright (C) 2003-2006 by XGI Technology, Taiwan.
 *
 * 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 on 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 NON-INFRINGEMENT.  IN NO EVENT SHALL
 * XGI 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.
 ***************************************************************************/

#ifndef _XGI_DRV_H_
#define _XGI_DRV_H_

#include "drmP.h"
#include "drm.h"
#include "drm_sman.h"

#define DRIVER_AUTHOR		"Andrea Zhang <andrea_zhang@macrosynergy.com>"

#define DRIVER_NAME		"xgi"
#define DRIVER_DESC		"XGI XP5 / XP10 / XG47"
#define DRIVER_DATE		"20080612"

#define DRIVER_MAJOR		1
#define DRIVER_MINOR		2
#define DRIVER_PATCHLEVEL	0

#include "xgi_cmdlist.h"
#include "xgi_drm.h"

struct xgi_aperture {
	dma_addr_t base;
	unsigned int size;
};

struct xgi_info {
	struct drm_device *dev;

	bool bootstrap_done;

	/* physical characteristics */
	struct xgi_aperture mmio;
	struct xgi_aperture fb;
	struct xgi_aperture pcie;

	struct drm_map *mmio_map;
	struct drm_map *pcie_map;
	struct drm_map *fb_map;

	/* look up table parameters */
	struct drm_ati_pcigart_info gart_info;
	unsigned int lutPageSize;

	struct drm_sman sman;
	bool fb_heap_initialized;
	bool pcie_heap_initialized;

	struct xgi_cmdring_info cmdring;

	DRM_SPINTYPE fence_lock;
	wait_queue_head_t fence_queue;
	unsigned complete_sequence;
	unsigned next_sequence;
};

extern long xgi_compat_ioctl(struct file *filp, unsigned int cmd,
	unsigned long arg);

extern int xgi_fb_heap_init(struct xgi_info * info);

extern int xgi_alloc(struct xgi_info * info, struct xgi_mem_alloc * alloc,
	struct drm_file * filp);

extern int xgi_free(struct xgi_info * info, unsigned int index,
	struct drm_file * filp);

extern int xgi_pcie_heap_init(struct xgi_info * info);

extern void *xgi_find_pcie_virt(struct xgi_info * info, u32 address);

extern void xgi_enable_mmio(struct xgi_info * info);
extern void xgi_disable_mmio(struct xgi_info * info);
extern void xgi_enable_ge(struct xgi_info * info);
extern void xgi_disable_ge(struct xgi_info * info);

/* Non-TTM-style fences.
 */
extern int xgi_set_fence_ioctl(struct drm_device * dev, void * data,
	struct drm_file * filp);
extern int xgi_wait_fence_ioctl(struct drm_device * dev, void * data,
	struct drm_file * filp);

extern int xgi_alloc_ioctl(struct drm_device * dev, void * data,
	struct drm_file * filp);
extern int xgi_free_ioctl(struct drm_device * dev, void * data,
	struct drm_file * filp);
extern int xgi_submit_cmdlist(struct drm_device * dev, void * data,
	struct drm_file * filp);
extern int xgi_state_change_ioctl(struct drm_device * dev, void * data,
	struct drm_file * filp);

#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-27 15:41:43 +0000
ge; list = sarea_priv->texList; /* Mark the regions with the new flag and update their age. Move * them to head of list to preserve LRU semantics. */ for (i = start; i <= end; i++) { list[i].in_use = in_use; list[i].age = age; /* remove_from_list(i) */ list[(unsigned)list[i].next].prev = list[i].prev; list[(unsigned)list[i].prev].next = list[i].next; /* insert_at_head(list, i) */ list[i].prev = nr; list[i].next = list[nr].next; list[(unsigned)list[nr].next].prev = i; list[nr].next = i; } } /* Very simple allocator for agp memory, working on a static range * already mapped into each client's address space. */ static struct mem_block *split_block(struct mem_block *p, int start, int size, DRMFILE filp) { /* Maybe cut off the start of an existing block */ if (start > p->start) { struct mem_block *newblock = DRM_MALLOC(sizeof(*newblock)); if (!newblock) goto out; newblock->start = start; newblock->size = p->size - (start - p->start); newblock->filp = NULL; newblock->next = p->next; newblock->prev = p; p->next->prev = newblock; p->next = newblock; p->size -= newblock->size; p = newblock; } /* Maybe cut off the end of an existing block */ if (size < p->size) { struct mem_block *newblock = DRM_MALLOC(sizeof(*newblock)); if (!newblock) goto out; newblock->start = start + size; newblock->size = p->size - size; newblock->filp = NULL; newblock->next = p->next; newblock->prev = p; p->next->prev = newblock; p->next = newblock; p->size = size; } out: /* Our block is in the middle */ p->filp = filp; return p; } static struct mem_block *alloc_block(struct mem_block *heap, int size, int align2, DRMFILE filp) { struct mem_block *p; int mask = (1 << align2) - 1; for (p = heap->next; p != heap; p = p->next) { int start = (p->start + mask) & ~mask; if (p->filp == NULL && start + size <= p->start + p->size) return split_block(p, start, size, filp); } return NULL; } static struct mem_block *find_block(struct mem_block *heap, int start) { struct mem_block *p; for (p = heap->next; p != heap; p = p->next) if (p->start == start) return p; return NULL; } static void free_block(struct mem_block *p) { p->filp = NULL; /* Assumes a single contiguous range. Needs a special filp in * 'heap' to stop it being subsumed. */ if (p->next->filp == NULL) { struct mem_block *q = p->next; p->size += q->size; p->next = q->next; p->next->prev = p; DRM_FREE(q, sizeof(*q)); } if (p->prev->filp == NULL) { struct mem_block *q = p->prev; q->size += p->size; q->next = p->next; q->next->prev = q; DRM_FREE(p, sizeof(*q)); } } /* Initialize. How to check for an uninitialized heap? */ static int init_heap(struct mem_block **heap, int start, int size) { struct mem_block *blocks = DRM_MALLOC(sizeof(*blocks)); if (!blocks) return -ENOMEM; *heap = DRM_MALLOC(sizeof(**heap)); if (!*heap) { DRM_FREE(blocks, sizeof(*blocks)); return -ENOMEM; } blocks->start = start; blocks->size = size; blocks->filp = NULL; blocks->next = blocks->prev = *heap; memset(*heap, 0, sizeof(**heap)); (*heap)->filp = (DRMFILE) - 1; (*heap)->next = (*heap)->prev = blocks; return 0; } /* Free all blocks associated with the releasing file. */ void i915_mem_release(drm_device_t * dev, DRMFILE filp, struct mem_block *heap) { struct mem_block *p; if (!heap || !heap->next) return; for (p = heap->next; p != heap; p = p->next) { if (p->filp == filp) { p->filp = NULL; mark_block(dev, p, 0); } } /* Assumes a single contiguous range. Needs a special filp in * 'heap' to stop it being subsumed. */ for (p = heap->next; p != heap; p = p->next) { while (p->filp == NULL && p->next->filp == NULL) { struct mem_block *q = p->next; p->size += q->size; p->next = q->next; p->next->prev = p; DRM_FREE(q, sizeof(*q)); } } } /* Shutdown. */ void i915_mem_takedown(struct mem_block **heap) { struct mem_block *p; if (!*heap) return; for (p = (*heap)->next; p != *heap;) { struct mem_block *q = p; p = p->next; DRM_FREE(q, sizeof(*q)); } DRM_FREE(*heap, sizeof(**heap)); *heap = NULL; } static struct mem_block **get_heap(drm_i915_private_t * dev_priv, int region) { switch (region) { case I915_MEM_REGION_AGP: return &dev_priv->agp_heap; default: return NULL; } } /* IOCTL HANDLERS */ int i915_mem_alloc(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_mem_alloc_t alloc; struct mem_block *block, **heap; if (!dev_priv) { DRM_ERROR("%s called with no initialization\n", __FUNCTION__); return DRM_ERR(EINVAL); } DRM_COPY_FROM_USER_IOCTL(alloc, (drm_i915_mem_alloc_t __user *) data, sizeof(alloc)); heap = get_heap(dev_priv, alloc.region); if (!heap || !*heap) return DRM_ERR(EFAULT); /* Make things easier on ourselves: all allocations at least * 4k aligned. */ if (alloc.alignment < 12) alloc.alignment = 12; block = alloc_block(*heap, alloc.size, alloc.alignment, filp); if (!block) return DRM_ERR(ENOMEM); mark_block(dev, block, 1); if (DRM_COPY_TO_USER(alloc.region_offset, &block->start, sizeof(int))) { DRM_ERROR("copy_to_user\n"); return DRM_ERR(EFAULT); } return 0; } int i915_mem_free(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_mem_free_t memfree; struct mem_block *block, **heap; if (!dev_priv) { DRM_ERROR("%s called with no initialization\n", __FUNCTION__); return DRM_ERR(EINVAL); } DRM_COPY_FROM_USER_IOCTL(memfree, (drm_i915_mem_free_t __user *) data, sizeof(memfree)); heap = get_heap(dev_priv, memfree.region); if (!heap || !*heap) return DRM_ERR(EFAULT); block = find_block(*heap, memfree.region_offset); if (!block) return DRM_ERR(EFAULT); if (block->filp != filp) return DRM_ERR(EPERM); mark_block(dev, block, 0); free_block(block); return 0; } int i915_mem_init_heap(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_mem_init_heap_t initheap; struct mem_block **heap; if (!dev_priv) { DRM_ERROR("%s called with no initialization\n", __FUNCTION__); return DRM_ERR(EINVAL); } DRM_COPY_FROM_USER_IOCTL(initheap, (drm_i915_mem_init_heap_t __user *) data, sizeof(initheap)); heap = get_heap(dev_priv, initheap.region); if (!heap) return DRM_ERR(EFAULT); if (*heap) { DRM_ERROR("heap already initialized?"); return DRM_ERR(EFAULT); } return init_heap(heap, initheap.start, initheap.size); }
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-27 15:41:43 +0000