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b8aa843c63
- Split core DRM routines back into their own module, rather than using the nasty templated system like before. - Development-class R300 support in radeon driver (requires userland pieces, of course). - Mach64 driver (haven't tested in a while -- my mach64s no longer fit in the testbox). Covers Rage Pros, Rage Mobility P/M, Rage XL, and some others. - i915 driver files, which just need to get drm_drv.c fixed to allow attachment to the drmsub device. Covers i830 through i915 integrated graphics. - savage driver files, which should require minimal changes to work. Covers the Savage3D, Savage IX/MX, Savage 4, ProSavage. - Support for color and texture tiling and HyperZ features of Radeon. Thanks to: scottl (much p4 handholding) Jung-uk Kim (helpful prodding) PR: [1] kern/76879, [2] kern/72548 Submitted by: [1] Alex, lesha at intercaf dot ru [2] Shaun Jurrens, shaun at shamz dot net
359 lines
8.1 KiB
C
359 lines
8.1 KiB
C
/* drm_agpsupport.h -- DRM support for AGP/GART backend -*- linux-c -*-
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* Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com
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*/
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/*-
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Author:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*
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* $FreeBSD$
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*/
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#include "dev/drm/drmP.h"
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#ifdef __FreeBSD__
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#include <pci/agpreg.h>
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#include <dev/pci/pcireg.h>
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#endif
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int
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drm_device_is_agp(drm_device_t *dev)
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{
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#ifdef __FreeBSD__
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/* Code taken from agp.c. IWBNI that was a public interface. */
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u_int32_t status;
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u_int8_t ptr, next;
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/*
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* Check the CAP_LIST bit of the PCI status register first.
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*/
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status = pci_read_config(dev->device, PCIR_STATUS, 2);
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if (!(status & 0x10))
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return 0;
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/*
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* Traverse the capabilities list.
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*/
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for (ptr = pci_read_config(dev->device, AGP_CAPPTR, 1);
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ptr != 0;
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ptr = next) {
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u_int32_t capid = pci_read_config(dev->device, ptr, 4);
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next = AGP_CAPID_GET_NEXT_PTR(capid);
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/*
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* If this capability entry ID is 2, then we are done.
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*/
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if (AGP_CAPID_GET_CAP_ID(capid) == 2)
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return 1;
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}
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return 0;
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#else
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/* XXX: fill me in for non-FreeBSD */
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return 1;
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#endif
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}
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int drm_agp_info(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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struct agp_info *kern;
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drm_agp_info_t info;
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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kern = &dev->agp->info;
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agp_get_info(dev->agp->agpdev, kern);
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info.agp_version_major = 1;
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info.agp_version_minor = 0;
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info.mode = kern->ai_mode;
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info.aperture_base = kern->ai_aperture_base;
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info.aperture_size = kern->ai_aperture_size;
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info.memory_allowed = kern->ai_memory_allowed;
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info.memory_used = kern->ai_memory_used;
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info.id_vendor = kern->ai_devid & 0xffff;
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info.id_device = kern->ai_devid >> 16;
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*(drm_agp_info_t *) data = info;
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return 0;
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}
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int drm_agp_acquire(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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int retcode;
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if (!dev->agp || dev->agp->acquired)
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return EINVAL;
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retcode = agp_acquire(dev->agp->agpdev);
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if (retcode)
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return retcode;
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dev->agp->acquired = 1;
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return 0;
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}
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int drm_agp_release(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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agp_release(dev->agp->agpdev);
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dev->agp->acquired = 0;
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return 0;
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}
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void drm_agp_do_release(void)
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{
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device_t agpdev;
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agpdev = DRM_AGP_FIND_DEVICE();
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if (agpdev)
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agp_release(agpdev);
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}
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int drm_agp_enable(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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drm_agp_mode_t mode;
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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mode = *(drm_agp_mode_t *) data;
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dev->agp->mode = mode.mode;
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agp_enable(dev->agp->agpdev, mode.mode);
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dev->agp->base = dev->agp->info.ai_aperture_base;
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dev->agp->enabled = 1;
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return 0;
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}
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int drm_agp_alloc(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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drm_agp_buffer_t request;
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drm_agp_mem_t *entry;
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void *handle;
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unsigned long pages;
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u_int32_t type;
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struct agp_memory_info info;
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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request = *(drm_agp_buffer_t *) data;
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entry = malloc(sizeof(*entry), M_DRM, M_NOWAIT | M_ZERO);
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if (entry == NULL)
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return ENOMEM;
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pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
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type = (u_int32_t) request.type;
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if (!(handle = drm_agp_allocate_memory(pages, type))) {
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free(entry, M_DRM);
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return ENOMEM;
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}
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entry->handle = handle;
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entry->bound = 0;
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entry->pages = pages;
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entry->prev = NULL;
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entry->next = dev->agp->memory;
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if (dev->agp->memory)
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dev->agp->memory->prev = entry;
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dev->agp->memory = entry;
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agp_memory_info(dev->agp->agpdev, entry->handle, &info);
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request.handle = (unsigned long) entry->handle;
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request.physical = info.ami_physical;
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*(drm_agp_buffer_t *) data = request;
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return 0;
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}
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static drm_agp_mem_t * drm_agp_lookup_entry(drm_device_t *dev, void *handle)
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{
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drm_agp_mem_t *entry;
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for (entry = dev->agp->memory; entry; entry = entry->next) {
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if (entry->handle == handle) return entry;
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}
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return NULL;
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}
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int drm_agp_unbind(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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drm_agp_binding_t request;
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drm_agp_mem_t *entry;
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int retcode;
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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request = *(drm_agp_binding_t *) data;
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if (!(entry = drm_agp_lookup_entry(dev, (void *)request.handle)))
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return EINVAL;
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if (!entry->bound) return EINVAL;
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retcode = drm_agp_unbind_memory(entry->handle);
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if (!retcode)
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{
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entry->bound=0;
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return 0;
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}
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else
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return retcode;
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}
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int drm_agp_bind(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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drm_agp_binding_t request;
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drm_agp_mem_t *entry;
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int retcode;
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int page;
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DRM_DEBUG("agp_bind, page_size=%x\n", PAGE_SIZE);
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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request = *(drm_agp_binding_t *) data;
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if (!(entry = drm_agp_lookup_entry(dev, (void *)request.handle)))
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return EINVAL;
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if (entry->bound) return EINVAL;
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page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
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if ((retcode = drm_agp_bind_memory(entry->handle, page)))
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return retcode;
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entry->bound = dev->agp->base + (page << PAGE_SHIFT);
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return 0;
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}
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int drm_agp_free(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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drm_agp_buffer_t request;
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drm_agp_mem_t *entry;
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if (!dev->agp || !dev->agp->acquired)
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return EINVAL;
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request = *(drm_agp_buffer_t *) data;
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if (!(entry = drm_agp_lookup_entry(dev, (void*)request.handle)))
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return EINVAL;
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if (entry->bound)
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drm_agp_unbind_memory(entry->handle);
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if (entry->prev)
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entry->prev->next = entry->next;
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else
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dev->agp->memory = entry->next;
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if (entry->next)
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entry->next->prev = entry->prev;
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drm_agp_free_memory(entry->handle);
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free(entry, M_DRM);
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return 0;
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}
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drm_agp_head_t *drm_agp_init(void)
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{
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device_t agpdev;
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drm_agp_head_t *head = NULL;
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int agp_available = 1;
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agpdev = DRM_AGP_FIND_DEVICE();
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if (!agpdev)
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agp_available = 0;
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DRM_DEBUG("agp_available = %d\n", agp_available);
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if (agp_available) {
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head = malloc(sizeof(*head), M_DRM, M_NOWAIT | M_ZERO);
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if (head == NULL)
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return NULL;
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head->agpdev = agpdev;
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agp_get_info(agpdev, &head->info);
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head->memory = NULL;
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DRM_INFO("AGP at 0x%08lx %dMB\n",
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(long)head->info.ai_aperture_base,
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(int)(head->info.ai_aperture_size >> 20));
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}
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return head;
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}
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void drm_agp_uninit(void)
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{
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/* FIXME: What goes here */
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}
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void *drm_agp_allocate_memory(size_t pages, u32 type)
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{
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device_t agpdev;
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agpdev = DRM_AGP_FIND_DEVICE();
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if (!agpdev)
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return NULL;
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return agp_alloc_memory(agpdev, type, pages << AGP_PAGE_SHIFT);
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}
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int drm_agp_free_memory(void *handle)
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{
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device_t agpdev;
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agpdev = DRM_AGP_FIND_DEVICE();
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if (!agpdev || !handle)
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return 0;
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agp_free_memory(agpdev, handle);
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return 1;
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}
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int drm_agp_bind_memory(void *handle, off_t start)
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{
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device_t agpdev;
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agpdev = DRM_AGP_FIND_DEVICE();
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if (!agpdev || !handle)
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return EINVAL;
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return agp_bind_memory(agpdev, handle, start * PAGE_SIZE);
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}
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int drm_agp_unbind_memory(void *handle)
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{
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device_t agpdev;
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agpdev = DRM_AGP_FIND_DEVICE();
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if (!agpdev || !handle)
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return EINVAL;
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return agp_unbind_memory(agpdev, handle);
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}
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