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