425 lines
13 KiB
C
425 lines
13 KiB
C
/**
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* \file radeon_ioc32.c
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*
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* 32-bit ioctl compatibility routines for the Radeon DRM.
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*
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* \author Paul Mackerras <paulus@samba.org>
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*
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* Copyright (C) Paul Mackerras 2005
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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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* THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <linux/compat.h>
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#include <drm/drmP.h>
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#include <drm/radeon_drm.h>
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#include "radeon_drv.h"
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typedef struct drm_radeon_init32 {
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int func;
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u32 sarea_priv_offset;
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int is_pci;
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int cp_mode;
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int gart_size;
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int ring_size;
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int usec_timeout;
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unsigned int fb_bpp;
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unsigned int front_offset, front_pitch;
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unsigned int back_offset, back_pitch;
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unsigned int depth_bpp;
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unsigned int depth_offset, depth_pitch;
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u32 fb_offset;
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u32 mmio_offset;
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u32 ring_offset;
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u32 ring_rptr_offset;
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u32 buffers_offset;
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u32 gart_textures_offset;
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} drm_radeon_init32_t;
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static int compat_radeon_cp_init(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_init32_t init32;
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drm_radeon_init_t __user *init;
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if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
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return -EFAULT;
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init = compat_alloc_user_space(sizeof(*init));
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if (!access_ok(VERIFY_WRITE, init, sizeof(*init))
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|| __put_user(init32.func, &init->func)
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|| __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset)
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|| __put_user(init32.is_pci, &init->is_pci)
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|| __put_user(init32.cp_mode, &init->cp_mode)
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|| __put_user(init32.gart_size, &init->gart_size)
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|| __put_user(init32.ring_size, &init->ring_size)
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|| __put_user(init32.usec_timeout, &init->usec_timeout)
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|| __put_user(init32.fb_bpp, &init->fb_bpp)
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|| __put_user(init32.front_offset, &init->front_offset)
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|| __put_user(init32.front_pitch, &init->front_pitch)
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|| __put_user(init32.back_offset, &init->back_offset)
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|| __put_user(init32.back_pitch, &init->back_pitch)
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|| __put_user(init32.depth_bpp, &init->depth_bpp)
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|| __put_user(init32.depth_offset, &init->depth_offset)
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|| __put_user(init32.depth_pitch, &init->depth_pitch)
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|| __put_user(init32.fb_offset, &init->fb_offset)
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|| __put_user(init32.mmio_offset, &init->mmio_offset)
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|| __put_user(init32.ring_offset, &init->ring_offset)
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|| __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset)
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|| __put_user(init32.buffers_offset, &init->buffers_offset)
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|| __put_user(init32.gart_textures_offset,
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&init->gart_textures_offset))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_CP_INIT, (unsigned long)init);
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}
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typedef struct drm_radeon_clear32 {
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unsigned int flags;
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unsigned int clear_color;
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unsigned int clear_depth;
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unsigned int color_mask;
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unsigned int depth_mask; /* misnamed field: should be stencil */
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u32 depth_boxes;
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} drm_radeon_clear32_t;
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static int compat_radeon_cp_clear(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_clear32_t clr32;
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drm_radeon_clear_t __user *clr;
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if (copy_from_user(&clr32, (void __user *)arg, sizeof(clr32)))
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return -EFAULT;
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clr = compat_alloc_user_space(sizeof(*clr));
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if (!access_ok(VERIFY_WRITE, clr, sizeof(*clr))
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|| __put_user(clr32.flags, &clr->flags)
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|| __put_user(clr32.clear_color, &clr->clear_color)
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|| __put_user(clr32.clear_depth, &clr->clear_depth)
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|| __put_user(clr32.color_mask, &clr->color_mask)
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|| __put_user(clr32.depth_mask, &clr->depth_mask)
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|| __put_user((void __user *)(unsigned long)clr32.depth_boxes,
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&clr->depth_boxes))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_CLEAR, (unsigned long)clr);
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}
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typedef struct drm_radeon_stipple32 {
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u32 mask;
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} drm_radeon_stipple32_t;
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static int compat_radeon_cp_stipple(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_stipple32_t __user *argp = (void __user *)arg;
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drm_radeon_stipple_t __user *request;
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u32 mask;
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if (get_user(mask, &argp->mask))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user((unsigned int __user *)(unsigned long)mask,
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&request->mask))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_STIPPLE, (unsigned long)request);
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}
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typedef struct drm_radeon_tex_image32 {
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unsigned int x, y; /* Blit coordinates */
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unsigned int width, height;
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u32 data;
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} drm_radeon_tex_image32_t;
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typedef struct drm_radeon_texture32 {
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unsigned int offset;
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int pitch;
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int format;
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int width; /* Texture image coordinates */
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int height;
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u32 image;
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} drm_radeon_texture32_t;
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static int compat_radeon_cp_texture(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_texture32_t req32;
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drm_radeon_texture_t __user *request;
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drm_radeon_tex_image32_t img32;
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drm_radeon_tex_image_t __user *image;
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if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
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return -EFAULT;
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if (req32.image == 0)
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return -EINVAL;
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if (copy_from_user(&img32, (void __user *)(unsigned long)req32.image,
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sizeof(img32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request) + sizeof(*image));
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if (!access_ok(VERIFY_WRITE, request,
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sizeof(*request) + sizeof(*image)))
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return -EFAULT;
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image = (drm_radeon_tex_image_t __user *) (request + 1);
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if (__put_user(req32.offset, &request->offset)
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|| __put_user(req32.pitch, &request->pitch)
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|| __put_user(req32.format, &request->format)
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|| __put_user(req32.width, &request->width)
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|| __put_user(req32.height, &request->height)
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|| __put_user(image, &request->image)
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|| __put_user(img32.x, &image->x)
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|| __put_user(img32.y, &image->y)
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|| __put_user(img32.width, &image->width)
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|| __put_user(img32.height, &image->height)
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|| __put_user((const void __user *)(unsigned long)img32.data,
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&image->data))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_TEXTURE, (unsigned long)request);
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}
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typedef struct drm_radeon_vertex2_32 {
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int idx; /* Index of vertex buffer */
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int discard; /* Client finished with buffer? */
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int nr_states;
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u32 state;
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int nr_prims;
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u32 prim;
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} drm_radeon_vertex2_32_t;
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static int compat_radeon_cp_vertex2(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_vertex2_32_t req32;
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drm_radeon_vertex2_t __user *request;
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if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user(req32.idx, &request->idx)
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|| __put_user(req32.discard, &request->discard)
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|| __put_user(req32.nr_states, &request->nr_states)
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|| __put_user((void __user *)(unsigned long)req32.state,
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&request->state)
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|| __put_user(req32.nr_prims, &request->nr_prims)
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|| __put_user((void __user *)(unsigned long)req32.prim,
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&request->prim))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_VERTEX2, (unsigned long)request);
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}
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typedef struct drm_radeon_cmd_buffer32 {
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int bufsz;
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u32 buf;
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int nbox;
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u32 boxes;
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} drm_radeon_cmd_buffer32_t;
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static int compat_radeon_cp_cmdbuf(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_cmd_buffer32_t req32;
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drm_radeon_cmd_buffer_t __user *request;
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if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user(req32.bufsz, &request->bufsz)
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|| __put_user((void __user *)(unsigned long)req32.buf,
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&request->buf)
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|| __put_user(req32.nbox, &request->nbox)
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|| __put_user((void __user *)(unsigned long)req32.boxes,
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&request->boxes))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_CMDBUF, (unsigned long)request);
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}
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typedef struct drm_radeon_getparam32 {
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int param;
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u32 value;
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} drm_radeon_getparam32_t;
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static int compat_radeon_cp_getparam(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_getparam32_t req32;
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drm_radeon_getparam_t __user *request;
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if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user(req32.param, &request->param)
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|| __put_user((void __user *)(unsigned long)req32.value,
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&request->value))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_GETPARAM, (unsigned long)request);
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}
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typedef struct drm_radeon_mem_alloc32 {
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int region;
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int alignment;
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int size;
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u32 region_offset; /* offset from start of fb or GART */
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} drm_radeon_mem_alloc32_t;
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static int compat_radeon_mem_alloc(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_mem_alloc32_t req32;
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drm_radeon_mem_alloc_t __user *request;
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if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user(req32.region, &request->region)
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|| __put_user(req32.alignment, &request->alignment)
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|| __put_user(req32.size, &request->size)
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|| __put_user((int __user *)(unsigned long)req32.region_offset,
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&request->region_offset))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_ALLOC, (unsigned long)request);
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}
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typedef struct drm_radeon_irq_emit32 {
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u32 irq_seq;
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} drm_radeon_irq_emit32_t;
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static int compat_radeon_irq_emit(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_irq_emit32_t req32;
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drm_radeon_irq_emit_t __user *request;
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if (copy_from_user(&req32, (void __user *)arg, sizeof(req32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user((int __user *)(unsigned long)req32.irq_seq,
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&request->irq_seq))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request);
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}
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/* The two 64-bit arches where alignof(u64)==4 in 32-bit code */
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#if defined (CONFIG_X86_64) || defined(CONFIG_IA64)
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typedef struct drm_radeon_setparam32 {
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int param;
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u64 value;
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} __attribute__((packed)) drm_radeon_setparam32_t;
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static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_radeon_setparam32_t req32;
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drm_radeon_setparam_t __user *request;
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if (copy_from_user(&req32, (void __user *) arg, sizeof(req32)))
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return -EFAULT;
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request = compat_alloc_user_space(sizeof(*request));
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if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
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|| __put_user(req32.param, &request->param)
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|| __put_user((void __user *)(unsigned long)req32.value,
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&request->value))
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return -EFAULT;
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return drm_ioctl(file, DRM_IOCTL_RADEON_SETPARAM, (unsigned long) request);
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}
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#else
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#define compat_radeon_cp_setparam NULL
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#endif /* X86_64 || IA64 */
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static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
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[DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
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[DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
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[DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
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[DRM_RADEON_TEXTURE] = compat_radeon_cp_texture,
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[DRM_RADEON_VERTEX2] = compat_radeon_cp_vertex2,
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[DRM_RADEON_CMDBUF] = compat_radeon_cp_cmdbuf,
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[DRM_RADEON_GETPARAM] = compat_radeon_cp_getparam,
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[DRM_RADEON_SETPARAM] = compat_radeon_cp_setparam,
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[DRM_RADEON_ALLOC] = compat_radeon_mem_alloc,
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[DRM_RADEON_IRQ_EMIT] = compat_radeon_irq_emit,
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};
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/**
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* Called whenever a 32-bit process running under a 64-bit kernel
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* performs an ioctl on /dev/dri/card<n>.
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*
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* \param filp file pointer.
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* \param cmd command.
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* \param arg user argument.
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* \return zero on success or negative number on failure.
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*/
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long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
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{
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unsigned int nr = DRM_IOCTL_NR(cmd);
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drm_ioctl_compat_t *fn = NULL;
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int ret;
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if (nr < DRM_COMMAND_BASE)
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return drm_compat_ioctl(filp, cmd, arg);
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if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls))
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fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
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if (fn != NULL)
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ret = (*fn) (filp, cmd, arg);
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else
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ret = drm_ioctl(filp, cmd, arg);
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return ret;
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}
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long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
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{
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unsigned int nr = DRM_IOCTL_NR(cmd);
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int ret;
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if (nr < DRM_COMMAND_BASE)
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return drm_compat_ioctl(filp, cmd, arg);
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ret = drm_ioctl(filp, cmd, arg);
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return ret;
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}
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