From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 422 ++++++++++++++++++++++++++++++++++ 1 file changed, 422 insertions(+) create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c new file mode 100644 index 000000000..69c8ce231 --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -0,0 +1,422 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +#include "vmwgfx_drv.h" +#include +#include "vmwgfx_kms.h" + +struct svga_3d_compat_cap { + SVGA3dCapsRecordHeader header; + SVGA3dCapPair pairs[SVGA3D_DEVCAP_MAX]; +}; + +int vmw_getparam_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct drm_vmw_getparam_arg *param = + (struct drm_vmw_getparam_arg *)data; + struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + + switch (param->param) { + case DRM_VMW_PARAM_NUM_STREAMS: + param->value = vmw_overlay_num_overlays(dev_priv); + break; + case DRM_VMW_PARAM_NUM_FREE_STREAMS: + param->value = vmw_overlay_num_free_overlays(dev_priv); + break; + case DRM_VMW_PARAM_3D: + param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0; + break; + case DRM_VMW_PARAM_HW_CAPS: + param->value = dev_priv->capabilities; + break; + case DRM_VMW_PARAM_FIFO_CAPS: + param->value = dev_priv->fifo.capabilities; + break; + case DRM_VMW_PARAM_MAX_FB_SIZE: + param->value = dev_priv->prim_bb_mem; + break; + case DRM_VMW_PARAM_FIFO_HW_VERSION: + { + __le32 __iomem *fifo_mem = dev_priv->mmio_virt; + const struct vmw_fifo_state *fifo = &dev_priv->fifo; + + if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) { + param->value = SVGA3D_HWVERSION_WS8_B1; + break; + } + + param->value = + ioread32(fifo_mem + + ((fifo->capabilities & + SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ? + SVGA_FIFO_3D_HWVERSION_REVISED : + SVGA_FIFO_3D_HWVERSION)); + break; + } + case DRM_VMW_PARAM_MAX_SURF_MEMORY: + if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) && + !vmw_fp->gb_aware) + param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2; + else + param->value = dev_priv->memory_size; + break; + case DRM_VMW_PARAM_3D_CAPS_SIZE: + if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) && + vmw_fp->gb_aware) + param->value = SVGA3D_DEVCAP_MAX * sizeof(uint32_t); + else if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) + param->value = sizeof(struct svga_3d_compat_cap) + + sizeof(uint32_t); + else + param->value = (SVGA_FIFO_3D_CAPS_LAST - + SVGA_FIFO_3D_CAPS + 1) * + sizeof(uint32_t); + break; + case DRM_VMW_PARAM_MAX_MOB_MEMORY: + vmw_fp->gb_aware = true; + param->value = dev_priv->max_mob_pages * PAGE_SIZE; + break; + case DRM_VMW_PARAM_MAX_MOB_SIZE: + param->value = dev_priv->max_mob_size; + break; + default: + DRM_ERROR("Illegal vmwgfx get param request: %d\n", + param->param); + return -EINVAL; + } + + return 0; +} + +static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce, + size_t size) +{ + struct svga_3d_compat_cap *compat_cap = + (struct svga_3d_compat_cap *) bounce; + unsigned int i; + size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs); + unsigned int max_size; + + if (size < pair_offset) + return -EINVAL; + + max_size = (size - pair_offset) / sizeof(SVGA3dCapPair); + + if (max_size > SVGA3D_DEVCAP_MAX) + max_size = SVGA3D_DEVCAP_MAX; + + compat_cap->header.length = + (pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32); + compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS; + + spin_lock(&dev_priv->cap_lock); + for (i = 0; i < max_size; ++i) { + vmw_write(dev_priv, SVGA_REG_DEV_CAP, i); + compat_cap->pairs[i][0] = i; + compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP); + } + spin_unlock(&dev_priv->cap_lock); + + return 0; +} + + +int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vmw_get_3d_cap_arg *arg = + (struct drm_vmw_get_3d_cap_arg *) data; + struct vmw_private *dev_priv = vmw_priv(dev); + uint32_t size; + __le32 __iomem *fifo_mem; + void __user *buffer = (void __user *)((unsigned long)(arg->buffer)); + void *bounce; + int ret; + bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS); + struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + + if (unlikely(arg->pad64 != 0)) { + DRM_ERROR("Illegal GET_3D_CAP argument.\n"); + return -EINVAL; + } + + if (gb_objects && vmw_fp->gb_aware) + size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t); + else if (gb_objects) + size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t); + else + size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) * + sizeof(uint32_t); + + if (arg->max_size < size) + size = arg->max_size; + + bounce = vzalloc(size); + if (unlikely(bounce == NULL)) { + DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n"); + return -ENOMEM; + } + + if (gb_objects && vmw_fp->gb_aware) { + int i, num; + uint32_t *bounce32 = (uint32_t *) bounce; + + num = size / sizeof(uint32_t); + if (num > SVGA3D_DEVCAP_MAX) + num = SVGA3D_DEVCAP_MAX; + + spin_lock(&dev_priv->cap_lock); + for (i = 0; i < num; ++i) { + vmw_write(dev_priv, SVGA_REG_DEV_CAP, i); + *bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP); + } + spin_unlock(&dev_priv->cap_lock); + } else if (gb_objects) { + ret = vmw_fill_compat_cap(dev_priv, bounce, size); + if (unlikely(ret != 0)) + goto out_err; + } else { + fifo_mem = dev_priv->mmio_virt; + memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size); + } + + ret = copy_to_user(buffer, bounce, size); + if (ret) + ret = -EFAULT; +out_err: + vfree(bounce); + + if (unlikely(ret != 0)) + DRM_ERROR("Failed to report 3D caps info.\n"); + + return ret; +} + +int vmw_present_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_private *dev_priv = vmw_priv(dev); + struct drm_vmw_present_arg *arg = + (struct drm_vmw_present_arg *)data; + struct vmw_surface *surface; + struct drm_vmw_rect __user *clips_ptr; + struct drm_vmw_rect *clips = NULL; + struct drm_framebuffer *fb; + struct vmw_framebuffer *vfb; + struct vmw_resource *res; + uint32_t num_clips; + int ret; + + num_clips = arg->num_clips; + clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr; + + if (unlikely(num_clips == 0)) + return 0; + + if (clips_ptr == NULL) { + DRM_ERROR("Variable clips_ptr must be specified.\n"); + ret = -EINVAL; + goto out_clips; + } + + clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); + if (clips == NULL) { + DRM_ERROR("Failed to allocate clip rect list.\n"); + ret = -ENOMEM; + goto out_clips; + } + + ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); + if (ret) { + DRM_ERROR("Failed to copy clip rects from userspace.\n"); + ret = -EFAULT; + goto out_no_copy; + } + + drm_modeset_lock_all(dev); + + fb = drm_framebuffer_lookup(dev, arg->fb_id); + if (!fb) { + DRM_ERROR("Invalid framebuffer id.\n"); + ret = -ENOENT; + goto out_no_fb; + } + vfb = vmw_framebuffer_to_vfb(fb); + + ret = ttm_read_lock(&dev_priv->reservation_sem, true); + if (unlikely(ret != 0)) + goto out_no_ttm_lock; + + ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid, + user_surface_converter, + &res); + if (ret) + goto out_no_surface; + + surface = vmw_res_to_srf(res); + ret = vmw_kms_present(dev_priv, file_priv, + vfb, surface, arg->sid, + arg->dest_x, arg->dest_y, + clips, num_clips); + + /* vmw_user_surface_lookup takes one ref so does new_fb */ + vmw_surface_unreference(&surface); + +out_no_surface: + ttm_read_unlock(&dev_priv->reservation_sem); +out_no_ttm_lock: + drm_framebuffer_unreference(fb); +out_no_fb: + drm_modeset_unlock_all(dev); +out_no_copy: + kfree(clips); +out_clips: + return ret; +} + +int vmw_present_readback_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct drm_vmw_present_readback_arg *arg = + (struct drm_vmw_present_readback_arg *)data; + struct drm_vmw_fence_rep __user *user_fence_rep = + (struct drm_vmw_fence_rep __user *) + (unsigned long)arg->fence_rep; + struct drm_vmw_rect __user *clips_ptr; + struct drm_vmw_rect *clips = NULL; + struct drm_framebuffer *fb; + struct vmw_framebuffer *vfb; + uint32_t num_clips; + int ret; + + num_clips = arg->num_clips; + clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr; + + if (unlikely(num_clips == 0)) + return 0; + + if (clips_ptr == NULL) { + DRM_ERROR("Argument clips_ptr must be specified.\n"); + ret = -EINVAL; + goto out_clips; + } + + clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); + if (clips == NULL) { + DRM_ERROR("Failed to allocate clip rect list.\n"); + ret = -ENOMEM; + goto out_clips; + } + + ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); + if (ret) { + DRM_ERROR("Failed to copy clip rects from userspace.\n"); + ret = -EFAULT; + goto out_no_copy; + } + + drm_modeset_lock_all(dev); + + fb = drm_framebuffer_lookup(dev, arg->fb_id); + if (!fb) { + DRM_ERROR("Invalid framebuffer id.\n"); + ret = -ENOENT; + goto out_no_fb; + } + + vfb = vmw_framebuffer_to_vfb(fb); + if (!vfb->dmabuf) { + DRM_ERROR("Framebuffer not dmabuf backed.\n"); + ret = -EINVAL; + goto out_no_ttm_lock; + } + + ret = ttm_read_lock(&dev_priv->reservation_sem, true); + if (unlikely(ret != 0)) + goto out_no_ttm_lock; + + ret = vmw_kms_readback(dev_priv, file_priv, + vfb, user_fence_rep, + clips, num_clips); + + ttm_read_unlock(&dev_priv->reservation_sem); +out_no_ttm_lock: + drm_framebuffer_unreference(fb); +out_no_fb: + drm_modeset_unlock_all(dev); +out_no_copy: + kfree(clips); +out_clips: + return ret; +} + + +/** + * vmw_fops_poll - wrapper around the drm_poll function + * + * @filp: See the linux fops poll documentation. + * @wait: See the linux fops poll documentation. + * + * Wrapper around the drm_poll function that makes sure the device is + * processing the fifo if drm_poll decides to wait. + */ +unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait) +{ + struct drm_file *file_priv = filp->private_data; + struct vmw_private *dev_priv = + vmw_priv(file_priv->minor->dev); + + vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); + return drm_poll(filp, wait); +} + + +/** + * vmw_fops_read - wrapper around the drm_read function + * + * @filp: See the linux fops read documentation. + * @buffer: See the linux fops read documentation. + * @count: See the linux fops read documentation. + * offset: See the linux fops read documentation. + * + * Wrapper around the drm_read function that makes sure the device is + * processing the fifo if drm_read decides to wait. + */ +ssize_t vmw_fops_read(struct file *filp, char __user *buffer, + size_t count, loff_t *offset) +{ + struct drm_file *file_priv = filp->private_data; + struct vmw_private *dev_priv = + vmw_priv(file_priv->minor->dev); + + vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); + return drm_read(filp, buffer, count, offset); +} -- cgit v1.2.3-54-g00ecf