/************************************************************************** * * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA * 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 * THE COPYRIGHT HOLDERS, AUTHORS 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. * **************************************************************************/ #define HAVE_STDINT_H #define _FILE_OFFSET_BITS 64 #include #include #include #include #include "internal.h" #include #include #include "xf86drm.h" #include "nouveau_drm.h" struct nouveau_bo { struct kms_bo base; uint64_t map_handle; unsigned map_count; }; static int nouveau_get_prop(struct kms_driver *kms, unsigned key, unsigned *out) { switch (key) { case KMS_BO_TYPE: *out = KMS_BO_TYPE_SCANOUT_X8R8G8B8 | KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8; break; default: return -EINVAL; } return 0; } static int nouveau_destroy(struct kms_driver *kms) { free(kms); return 0; } static int nouveau_bo_create(struct kms_driver *kms, const unsigned width, const unsigned height, const enum kms_bo_type type, const unsigned *attr, struct kms_bo **out) { struct drm_nouveau_gem_new arg; unsigned size, pitch; struct nouveau_bo *bo; int i, ret; for (i = 0; attr[i]; i += 2) { switch (attr[i]) { case KMS_WIDTH: case KMS_HEIGHT: case KMS_BO_TYPE: break; default: return -EINVAL; } } bo = calloc(1, sizeof(*bo)); if (!bo) return -ENOMEM; if (type == KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8) { pitch = 64 * 4; size = 64 * 64 * 4; } else if (type == KMS_BO_TYPE_SCANOUT_X8R8G8B8) { pitch = width * 4; pitch = (pitch + 512 - 1) & ~(512 - 1); size = pitch * height; } else { return -EINVAL; } memset(&arg, 0, sizeof(arg)); arg.info.size = size; arg.info.domain = NOUVEAU_GEM_DOMAIN_MAPPABLE | NOUVEAU_GEM_DOMAIN_VRAM; arg.info.tile_mode = 0; arg.info.tile_flags = 0; arg.align = 512; arg.channel_hint = 0; ret = drmCommandWriteRead(kms->fd, DRM_NOUVEAU_GEM_NEW, &arg, sizeof(arg)); if (ret) goto err_free; bo->base.kms = kms; bo->base.handle = arg.info.handle; bo->base.size = size; bo->base.pitch = pitch; bo->map_handle = arg.info.map_handle; *out = &bo->base; return 0; err_free: free(bo); return ret; } static int nouveau_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out) { switch (key) { default: return -EINVAL; } } static int nouveau_bo_map(struct kms_bo *_bo, void **out) { struct nouveau_bo *bo = (struct nouveau_bo *)_bo; void *map = NULL; if (bo->base.ptr) { bo->map_count++; *out = bo->base.ptr; return 0; } map = mmap(0, bo->base.size, PROT_READ | PROT_WRITE, MAP_SHARED, bo->base.kms->fd, bo->map_handle); if (map == MAP_FAILED) return -errno; bo->base.ptr = map; bo->map_count++; *out = bo->base.ptr; return 0; } static int nouveau_bo_unmap(struct kms_bo *_bo) { struct nouveau_bo *bo = (struct nouveau_bo *)_bo; bo->map_count--; return 0; } static int nouveau_bo_destroy(struct kms_bo *_bo) { struct nouveau_bo *bo = (struct nouveau_bo *)_bo; struct drm_gem_close arg; int ret; if (bo->base.ptr) { /* XXX Sanity check map_count */ munmap(bo->base.ptr, bo->base.size); bo->base.ptr = NULL; } memset(&arg, 0, sizeof(arg)); arg.handle = bo->base.handle; ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_GEM_CLOSE, &arg); if (ret) return -errno; free(bo); return 0; } int nouveau_create(int fd, struct kms_driver **out) { struct kms_driver *kms; kms = calloc(1, sizeof(*kms)); if (!kms) return -ENOMEM; kms->fd = fd; kms->bo_create = nouveau_bo_create; kms->bo_map = nouveau_bo_map; kms->bo_unmap = nouveau_bo_unmap; kms->bo_get_prop = nouveau_bo_get_prop; kms->bo_destroy = nouveau_bo_destroy; kms->get_prop = nouveau_get_prop; kms->destroy = nouveau_destroy; *out = kms; return 0; } href='#n64'>64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 
/* ati_pcigart.h -- ATI PCI GART support -*- linux-c -*-
 * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com
 *
 * 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
 * PRECISION INSIGHT 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:
 *   Gareth Hughes <gareth@valinux.com>
 *
 */

#include "drmP.h"

#if PAGE_SIZE == 8192
# define ATI_PCIGART_TABLE_ORDER 	2
# define ATI_PCIGART_TABLE_PAGES 	(1 << 2)
#elif PAGE_SIZE == 4096
# define ATI_PCIGART_TABLE_ORDER 	3
# define ATI_PCIGART_TABLE_PAGES 	(1 << 3)
#elif
# error - PAGE_SIZE not 8K or 4K
#endif

# define ATI_MAX_PCIGART_PAGES		8192	/* 32 MB aperture, 4K pages */
# define ATI_PCIGART_PAGE_SIZE		4096	/* PCI GART page size */

int DRM(ati_pcigart_init)( drm_device_t *dev,
			   unsigned long *addr,
			   dma_addr_t *bus_addr)
{
	drm_sg_mem_t *entry = dev->sg;
	unsigned long address = 0;
	unsigned long pages;
	u32 *pci_gart=0, page_base, bus_address = 0;
	int i, j, ret = 0;

	if ( !entry ) {
		DRM_ERROR( "no scatter/gather memory!\n" );
		goto done;
	}

	address = (long)contigmalloc((1 << ATI_PCIGART_TABLE_ORDER) * PAGE_SIZE, 
	    DRM(M_DRM), M_NOWAIT, 0ul, 0xfffffffful, PAGE_SIZE, 0);
	if ( !address ) {
		DRM_ERROR( "cannot allocate PCI GART page!\n" );
		goto done;
	}

	/* XXX: we need to busdma this */
	bus_address = vtophys( address );

	pci_gart = (u32 *)address;

	pages = ( entry->pages <= ATI_MAX_PCIGART_PAGES )
		? entry->pages : ATI_MAX_PCIGART_PAGES;

	bzero( pci_gart, ATI_MAX_PCIGART_PAGES * sizeof(u32) );

	for ( i = 0 ; i < pages ; i++ ) {
		entry->busaddr[i] = vtophys( entry->handle + (i*PAGE_SIZE) );
		page_base = (u32) entry->busaddr[i];

		for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
			*pci_gart++ = cpu_to_le32( page_base );
			page_base += ATI_PCIGART_PAGE_SIZE;
		}
	}

	DRM_MEMORYBARRIER();

	ret = 1;

done:
	*addr = address;
	*bus_addr = bus_address;
	return ret;
}

int DRM(ati_pcigart_cleanup)( drm_device_t *dev,
			      unsigned long addr,
			      dma_addr_t bus_addr)
{
	drm_sg_mem_t *entry = dev->sg;

	/* we need to support large memory configurations */
	if ( !entry ) {
		DRM_ERROR( "no scatter/gather memory!\n" );
		return 0;
	}

#if __FreeBSD_version > 500000
	contigfree( (void *)addr, (1 << ATI_PCIGART_TABLE_ORDER) * PAGE_SIZE, DRM(M_DRM));	/* Not available on 4.x */
#endif
	return 1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-08 10:47:20 +0000