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OpenCloudOS-Kernel/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

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/**************************************************************************
*
* 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_kms.h"
/* Might need a hrtimer here? */
#define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
struct vmw_clip_rect {
int x1, x2, y1, y2;
};
/**
* Clip @num_rects number of @rects against @clip storing the
* results in @out_rects and the number of passed rects in @out_num.
*/
void vmw_clip_cliprects(struct drm_clip_rect *rects,
int num_rects,
struct vmw_clip_rect clip,
SVGASignedRect *out_rects,
int *out_num)
{
int i, k;
for (i = 0, k = 0; i < num_rects; i++) {
int x1 = max_t(int, clip.x1, rects[i].x1);
int y1 = max_t(int, clip.y1, rects[i].y1);
int x2 = min_t(int, clip.x2, rects[i].x2);
int y2 = min_t(int, clip.y2, rects[i].y2);
if (x1 >= x2)
continue;
if (y1 >= y2)
continue;
out_rects[k].left = x1;
out_rects[k].top = y1;
out_rects[k].right = x2;
out_rects[k].bottom = y2;
k++;
}
*out_num = k;
}
void vmw_display_unit_cleanup(struct vmw_display_unit *du)
{
if (du->cursor_surface)
vmw_surface_unreference(&du->cursor_surface);
if (du->cursor_dmabuf)
vmw_dmabuf_unreference(&du->cursor_dmabuf);
drm_crtc_cleanup(&du->crtc);
drm_encoder_cleanup(&du->encoder);
drm_connector_cleanup(&du->connector);
}
/*
* Display Unit Cursor functions
*/
int vmw_cursor_update_image(struct vmw_private *dev_priv,
u32 *image, u32 width, u32 height,
u32 hotspotX, u32 hotspotY)
{
struct {
u32 cmd;
SVGAFifoCmdDefineAlphaCursor cursor;
} *cmd;
u32 image_size = width * height * 4;
u32 cmd_size = sizeof(*cmd) + image_size;
if (!image)
return -EINVAL;
cmd = vmw_fifo_reserve(dev_priv, cmd_size);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Fifo reserve failed.\n");
return -ENOMEM;
}
memset(cmd, 0, sizeof(*cmd));
memcpy(&cmd[1], image, image_size);
cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
cmd->cursor.id = cpu_to_le32(0);
cmd->cursor.width = cpu_to_le32(width);
cmd->cursor.height = cpu_to_le32(height);
cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
vmw_fifo_commit(dev_priv, cmd_size);
return 0;
}
int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
struct vmw_dma_buffer *dmabuf,
u32 width, u32 height,
u32 hotspotX, u32 hotspotY)
{
struct ttm_bo_kmap_obj map;
unsigned long kmap_offset;
unsigned long kmap_num;
void *virtual;
bool dummy;
int ret;
kmap_offset = 0;
kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
if (unlikely(ret != 0)) {
DRM_ERROR("reserve failed\n");
return -EINVAL;
}
ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
if (unlikely(ret != 0))
goto err_unreserve;
virtual = ttm_kmap_obj_virtual(&map, &dummy);
ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
hotspotX, hotspotY);
ttm_bo_kunmap(&map);
err_unreserve:
ttm_bo_unreserve(&dmabuf->base);
return ret;
}
void vmw_cursor_update_position(struct vmw_private *dev_priv,
bool show, int x, int y)
{
__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
uint32_t count;
iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
}
int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
uint32_t handle, uint32_t width, uint32_t height)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
struct vmw_surface *surface = NULL;
struct vmw_dma_buffer *dmabuf = NULL;
int ret;
/*
* FIXME: Unclear whether there's any global state touched by the
* cursor_set function, especially vmw_cursor_update_position looks
* suspicious. For now take the easy route and reacquire all locks. We
* can do this since the caller in the drm core doesn't check anything
* which is protected by any looks.
*/
mutex_unlock(&crtc->mutex);
drm_modeset_lock_all(dev_priv->dev);
/* A lot of the code assumes this */
if (handle && (width != 64 || height != 64)) {
ret = -EINVAL;
goto out;
}
if (handle) {
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
ret = vmw_user_lookup_handle(dev_priv, tfile,
handle, &surface, &dmabuf);
if (ret) {
DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
ret = -EINVAL;
goto out;
}
}
/* need to do this before taking down old image */
if (surface && !surface->snooper.image) {
DRM_ERROR("surface not suitable for cursor\n");
vmw_surface_unreference(&surface);
ret = -EINVAL;
goto out;
}
/* takedown old cursor */
if (du->cursor_surface) {
du->cursor_surface->snooper.crtc = NULL;
vmw_surface_unreference(&du->cursor_surface);
}
if (du->cursor_dmabuf)
vmw_dmabuf_unreference(&du->cursor_dmabuf);
/* setup new image */
if (surface) {
/* vmw_user_surface_lookup takes one reference */
du->cursor_surface = surface;
du->cursor_surface->snooper.crtc = crtc;
du->cursor_age = du->cursor_surface->snooper.age;
vmw_cursor_update_image(dev_priv, surface->snooper.image,
64, 64, du->hotspot_x, du->hotspot_y);
} else if (dmabuf) {
/* vmw_user_surface_lookup takes one reference */
du->cursor_dmabuf = dmabuf;
ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
du->hotspot_x, du->hotspot_y);
} else {
vmw_cursor_update_position(dev_priv, false, 0, 0);
ret = 0;
goto out;
}
vmw_cursor_update_position(dev_priv, true,
du->cursor_x + du->hotspot_x,
du->cursor_y + du->hotspot_y);
ret = 0;
out:
drm_modeset_unlock_all(dev_priv->dev);
mutex_lock(&crtc->mutex);
return ret;
}
int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
du->cursor_x = x + crtc->x;
du->cursor_y = y + crtc->y;
/*
* FIXME: Unclear whether there's any global state touched by the
* cursor_set function, especially vmw_cursor_update_position looks
* suspicious. For now take the easy route and reacquire all locks. We
* can do this since the caller in the drm core doesn't check anything
* which is protected by any looks.
*/
mutex_unlock(&crtc->mutex);
drm_modeset_lock_all(dev_priv->dev);
vmw_cursor_update_position(dev_priv, shown,
du->cursor_x + du->hotspot_x,
du->cursor_y + du->hotspot_y);
drm_modeset_unlock_all(dev_priv->dev);
mutex_lock(&crtc->mutex);
return 0;
}
void vmw_kms_cursor_snoop(struct vmw_surface *srf,
struct ttm_object_file *tfile,
struct ttm_buffer_object *bo,
SVGA3dCmdHeader *header)
{
struct ttm_bo_kmap_obj map;
unsigned long kmap_offset;
unsigned long kmap_num;
SVGA3dCopyBox *box;
unsigned box_count;
void *virtual;
bool dummy;
struct vmw_dma_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSurfaceDMA dma;
} *cmd;
int i, ret;
cmd = container_of(header, struct vmw_dma_cmd, header);
/* No snooper installed */
if (!srf->snooper.image)
return;
if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
DRM_ERROR("face and mipmap for cursors should never != 0\n");
return;
}
if (cmd->header.size < 64) {
DRM_ERROR("at least one full copy box must be given\n");
return;
}
box = (SVGA3dCopyBox *)&cmd[1];
box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
sizeof(SVGA3dCopyBox);
if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
box->x != 0 || box->y != 0 || box->z != 0 ||
box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
box->d != 1 || box_count != 1) {
/* TODO handle none page aligned offsets */
/* TODO handle more dst & src != 0 */
/* TODO handle more then one copy */
DRM_ERROR("Cant snoop dma request for cursor!\n");
DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
box->srcx, box->srcy, box->srcz,
box->x, box->y, box->z,
box->w, box->h, box->d, box_count,
cmd->dma.guest.ptr.offset);
return;
}
kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
kmap_num = (64*64*4) >> PAGE_SHIFT;
ret = ttm_bo_reserve(bo, true, false, false, 0);
if (unlikely(ret != 0)) {
DRM_ERROR("reserve failed\n");
return;
}
ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
if (unlikely(ret != 0))
goto err_unreserve;
virtual = ttm_kmap_obj_virtual(&map, &dummy);
if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
memcpy(srf->snooper.image, virtual, 64*64*4);
} else {
/* Image is unsigned pointer. */
for (i = 0; i < box->h; i++)
memcpy(srf->snooper.image + i * 64,
virtual + i * cmd->dma.guest.pitch,
box->w * 4);
}
srf->snooper.age++;
/* we can't call this function from this function since execbuf has
* reserved fifo space.
*
* if (srf->snooper.crtc)
* vmw_ldu_crtc_cursor_update_image(dev_priv,
* srf->snooper.image, 64, 64,
* du->hotspot_x, du->hotspot_y);
*/
ttm_bo_kunmap(&map);
err_unreserve:
ttm_bo_unreserve(bo);
}
void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
struct vmw_display_unit *du;
struct drm_crtc *crtc;
mutex_lock(&dev->mode_config.mutex);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
du = vmw_crtc_to_du(crtc);
if (!du->cursor_surface ||
du->cursor_age == du->cursor_surface->snooper.age)
continue;
du->cursor_age = du->cursor_surface->snooper.age;
vmw_cursor_update_image(dev_priv,
du->cursor_surface->snooper.image,
64, 64, du->hotspot_x, du->hotspot_y);
}
mutex_unlock(&dev->mode_config.mutex);
}
/*
* Generic framebuffer code
*/
/*
* Surface framebuffer code
*/
#define vmw_framebuffer_to_vfbs(x) \
container_of(x, struct vmw_framebuffer_surface, base.base)
struct vmw_framebuffer_surface {
struct vmw_framebuffer base;
struct vmw_surface *surface;
struct vmw_dma_buffer *buffer;
struct list_head head;
struct drm_master *master;
};
void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
{
struct vmw_framebuffer_surface *vfbs =
vmw_framebuffer_to_vfbs(framebuffer);
struct vmw_master *vmaster = vmw_master(vfbs->master);
mutex_lock(&vmaster->fb_surf_mutex);
list_del(&vfbs->head);
mutex_unlock(&vmaster->fb_surf_mutex);
drm_master_put(&vfbs->master);
drm_framebuffer_cleanup(framebuffer);
vmw_surface_unreference(&vfbs->surface);
ttm_base_object_unref(&vfbs->base.user_obj);
kfree(vfbs);
}
static int do_surface_dirty_sou(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_framebuffer *framebuffer,
unsigned flags, unsigned color,
struct drm_clip_rect *clips,
unsigned num_clips, int inc,
struct vmw_fence_obj **out_fence)
{
struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
struct drm_clip_rect *clips_ptr;
struct drm_clip_rect *tmp;
struct drm_crtc *crtc;
size_t fifo_size;
int i, num_units;
int ret = 0; /* silence warning */
int left, right, top, bottom;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdBlitSurfaceToScreen body;
} *cmd;
SVGASignedRect *blits;
num_units = 0;
list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
head) {
if (crtc->fb != &framebuffer->base)
continue;
units[num_units++] = vmw_crtc_to_du(crtc);
}
BUG_ON(!clips || !num_clips);
tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
if (unlikely(tmp == NULL)) {
DRM_ERROR("Temporary cliprect memory alloc failed.\n");
return -ENOMEM;
}
fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
cmd = kzalloc(fifo_size, GFP_KERNEL);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Temporary fifo memory alloc failed.\n");
ret = -ENOMEM;
goto out_free_tmp;
}
/* setup blits pointer */
blits = (SVGASignedRect *)&cmd[1];
/* initial clip region */
left = clips->x1;
right = clips->x2;
top = clips->y1;
bottom = clips->y2;
/* skip the first clip rect */
for (i = 1, clips_ptr = clips + inc;
i < num_clips; i++, clips_ptr += inc) {
left = min_t(int, left, (int)clips_ptr->x1);
right = max_t(int, right, (int)clips_ptr->x2);
top = min_t(int, top, (int)clips_ptr->y1);
bottom = max_t(int, bottom, (int)clips_ptr->y2);
}
/* only need to do this once */
cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
cmd->body.srcRect.left = left;
cmd->body.srcRect.right = right;
cmd->body.srcRect.top = top;
cmd->body.srcRect.bottom = bottom;
clips_ptr = clips;
for (i = 0; i < num_clips; i++, clips_ptr += inc) {
tmp[i].x1 = clips_ptr->x1 - left;
tmp[i].x2 = clips_ptr->x2 - left;
tmp[i].y1 = clips_ptr->y1 - top;
tmp[i].y2 = clips_ptr->y2 - top;
}
/* do per unit writing, reuse fifo for each */
for (i = 0; i < num_units; i++) {
struct vmw_display_unit *unit = units[i];
struct vmw_clip_rect clip;
int num;
clip.x1 = left - unit->crtc.x;
clip.y1 = top - unit->crtc.y;
clip.x2 = right - unit->crtc.x;
clip.y2 = bottom - unit->crtc.y;
/* skip any crtcs that misses the clip region */
if (clip.x1 >= unit->crtc.mode.hdisplay ||
clip.y1 >= unit->crtc.mode.vdisplay ||
clip.x2 <= 0 || clip.y2 <= 0)
continue;
/*
* In order for the clip rects to be correctly scaled
* the src and dest rects needs to be the same size.
*/
cmd->body.destRect.left = clip.x1;
cmd->body.destRect.right = clip.x2;
cmd->body.destRect.top = clip.y1;
cmd->body.destRect.bottom = clip.y2;
/* create a clip rect of the crtc in dest coords */
clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
clip.x1 = 0 - clip.x1;
clip.y1 = 0 - clip.y1;
/* need to reset sid as it is changed by execbuf */
cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle);
cmd->body.destScreenId = unit->unit;
/* clip and write blits to cmd stream */
vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
/* if no cliprects hit skip this */
if (num == 0)
continue;
/* only return the last fence */
if (out_fence && *out_fence)
vmw_fence_obj_unreference(out_fence);
/* recalculate package length */
fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
fifo_size, 0, NULL, out_fence);
if (unlikely(ret != 0))
break;
}
kfree(cmd);
out_free_tmp:
kfree(tmp);
return ret;
}
int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
struct drm_file *file_priv,
unsigned flags, unsigned color,
struct drm_clip_rect *clips,
unsigned num_clips)
{
struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct vmw_framebuffer_surface *vfbs =
vmw_framebuffer_to_vfbs(framebuffer);
struct drm_clip_rect norect;
int ret, inc = 1;
if (unlikely(vfbs->master != file_priv->master))
return -EINVAL;
/* Require ScreenObject support for 3D */
if (!dev_priv->sou_priv)
return -EINVAL;
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
return ret;
if (!num_clips) {
num_clips = 1;
clips = &norect;
norect.x1 = norect.y1 = 0;
norect.x2 = framebuffer->width;
norect.y2 = framebuffer->height;
} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
num_clips /= 2;
inc = 2; /* skip source rects */
}
ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base,
flags, color,
clips, num_clips, inc, NULL);
ttm_read_unlock(&vmaster->lock);
return 0;
}
static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
.destroy = vmw_framebuffer_surface_destroy,
.dirty = vmw_framebuffer_surface_dirty,
};
static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_surface *surface,
struct vmw_framebuffer **out,
const struct drm_mode_fb_cmd
*mode_cmd)
{
struct drm_device *dev = dev_priv->dev;
struct vmw_framebuffer_surface *vfbs;
enum SVGA3dSurfaceFormat format;
struct vmw_master *vmaster = vmw_master(file_priv->master);
int ret;
/* 3D is only supported on HWv8 hosts which supports screen objects */
if (!dev_priv->sou_priv)
return -ENOSYS;
/*
* Sanity checks.
*/
/* Surface must be marked as a scanout. */
if (unlikely(!surface->scanout))
return -EINVAL;
if (unlikely(surface->mip_levels[0] != 1 ||
surface->num_sizes != 1 ||
surface->sizes[0].width < mode_cmd->width ||
surface->sizes[0].height < mode_cmd->height ||
surface->sizes[0].depth != 1)) {
DRM_ERROR("Incompatible surface dimensions "
"for requested mode.\n");
return -EINVAL;
}
switch (mode_cmd->depth) {
case 32:
format = SVGA3D_A8R8G8B8;
break;
case 24:
format = SVGA3D_X8R8G8B8;
break;
case 16:
format = SVGA3D_R5G6B5;
break;
case 15:
format = SVGA3D_A1R5G5B5;
break;
case 8:
format = SVGA3D_LUMINANCE8;
break;
default:
DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
return -EINVAL;
}
if (unlikely(format != surface->format)) {
DRM_ERROR("Invalid surface format for requested mode.\n");
return -EINVAL;
}
vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
if (!vfbs) {
ret = -ENOMEM;
goto out_err1;
}
if (!vmw_surface_reference(surface)) {
DRM_ERROR("failed to reference surface %p\n", surface);
ret = -EINVAL;
goto out_err2;
}
/* XXX get the first 3 from the surface info */
vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
vfbs->base.base.pitches[0] = mode_cmd->pitch;
vfbs->base.base.depth = mode_cmd->depth;
vfbs->base.base.width = mode_cmd->width;
vfbs->base.base.height = mode_cmd->height;
vfbs->surface = surface;
vfbs->base.user_handle = mode_cmd->handle;
vfbs->master = drm_master_get(file_priv->master);
mutex_lock(&vmaster->fb_surf_mutex);
list_add_tail(&vfbs->head, &vmaster->fb_surf);
mutex_unlock(&vmaster->fb_surf_mutex);
*out = &vfbs->base;
ret = drm_framebuffer_init(dev, &vfbs->base.base,
&vmw_framebuffer_surface_funcs);
if (ret)
goto out_err3;
return 0;
out_err3:
vmw_surface_unreference(&surface);
out_err2:
kfree(vfbs);
out_err1:
return ret;
}
/*
* Dmabuf framebuffer code
*/
#define vmw_framebuffer_to_vfbd(x) \
container_of(x, struct vmw_framebuffer_dmabuf, base.base)
struct vmw_framebuffer_dmabuf {
struct vmw_framebuffer base;
struct vmw_dma_buffer *buffer;
};
void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
{
struct vmw_framebuffer_dmabuf *vfbd =
vmw_framebuffer_to_vfbd(framebuffer);
drm_framebuffer_cleanup(framebuffer);
vmw_dmabuf_unreference(&vfbd->buffer);
ttm_base_object_unref(&vfbd->base.user_obj);
kfree(vfbd);
}
static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
unsigned flags, unsigned color,
struct drm_clip_rect *clips,
unsigned num_clips, int increment)
{
size_t fifo_size;
int i;
struct {
uint32_t header;
SVGAFifoCmdUpdate body;
} *cmd;
fifo_size = sizeof(*cmd) * num_clips;
cmd = vmw_fifo_reserve(dev_priv, fifo_size);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Fifo reserve failed.\n");
return -ENOMEM;
}
memset(cmd, 0, fifo_size);
for (i = 0; i < num_clips; i++, clips += increment) {
cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
cmd[i].body.x = cpu_to_le32(clips->x1);
cmd[i].body.y = cpu_to_le32(clips->y1);
cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
}
vmw_fifo_commit(dev_priv, fifo_size);
return 0;
}
static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer)
{
int depth = framebuffer->base.depth;
size_t fifo_size;
int ret;
struct {
uint32_t header;
SVGAFifoCmdDefineGMRFB body;
} *cmd;
/* Emulate RGBA support, contrary to svga_reg.h this is not
* supported by hosts. This is only a problem if we are reading
* this value later and expecting what we uploaded back.
*/
if (depth == 32)
depth = 24;
fifo_size = sizeof(*cmd);
cmd = kmalloc(fifo_size, GFP_KERNEL);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
return -ENOMEM;
}
memset(cmd, 0, fifo_size);
cmd->header = SVGA_CMD_DEFINE_GMRFB;
cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
cmd->body.format.colorDepth = depth;
cmd->body.format.reserved = 0;
cmd->body.bytesPerLine = framebuffer->base.pitches[0];
cmd->body.ptr.gmrId = framebuffer->user_handle;
cmd->body.ptr.offset = 0;
ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
fifo_size, 0, NULL, NULL);
kfree(cmd);
return ret;
}
static int do_dmabuf_dirty_sou(struct drm_file *file_priv,
struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
unsigned flags, unsigned color,
struct drm_clip_rect *clips,
unsigned num_clips, int increment,
struct vmw_fence_obj **out_fence)
{
struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
struct drm_clip_rect *clips_ptr;
int i, k, num_units, ret;
struct drm_crtc *crtc;
size_t fifo_size;
struct {
uint32_t header;
SVGAFifoCmdBlitGMRFBToScreen body;
} *blits;
ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer);
if (unlikely(ret != 0))
return ret; /* define_gmrfb prints warnings */
fifo_size = sizeof(*blits) * num_clips;
blits = kmalloc(fifo_size, GFP_KERNEL);
if (unlikely(blits == NULL)) {
DRM_ERROR("Failed to allocate temporary cmd buffer.\n");
return -ENOMEM;
}
num_units = 0;
list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
if (crtc->fb != &framebuffer->base)
continue;
units[num_units++] = vmw_crtc_to_du(crtc);
}
for (k = 0; k < num_units; k++) {
struct vmw_display_unit *unit = units[k];
int hit_num = 0;
clips_ptr = clips;
for (i = 0; i < num_clips; i++, clips_ptr += increment) {
int clip_x1 = clips_ptr->x1 - unit->crtc.x;
int clip_y1 = clips_ptr->y1 - unit->crtc.y;
int clip_x2 = clips_ptr->x2 - unit->crtc.x;
int clip_y2 = clips_ptr->y2 - unit->crtc.y;
int move_x, move_y;
/* skip any crtcs that misses the clip region */
if (clip_x1 >= unit->crtc.mode.hdisplay ||
clip_y1 >= unit->crtc.mode.vdisplay ||
clip_x2 <= 0 || clip_y2 <= 0)
continue;
/* clip size to crtc size */
clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay);
clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay);
/* translate both src and dest to bring clip into screen */
move_x = min_t(int, clip_x1, 0);
move_y = min_t(int, clip_y1, 0);
/* actual translate done here */
blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
blits[hit_num].body.destScreenId = unit->unit;
blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x;
blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y;
blits[hit_num].body.destRect.left = clip_x1 - move_x;
blits[hit_num].body.destRect.top = clip_y1 - move_y;
blits[hit_num].body.destRect.right = clip_x2;
blits[hit_num].body.destRect.bottom = clip_y2;
hit_num++;
}
/* no clips hit the crtc */
if (hit_num == 0)
continue;
/* only return the last fence */
if (out_fence && *out_fence)
vmw_fence_obj_unreference(out_fence);
fifo_size = sizeof(*blits) * hit_num;
ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits,
fifo_size, 0, NULL, out_fence);
if (unlikely(ret != 0))
break;
}
kfree(blits);
return ret;
}
int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
struct drm_file *file_priv,
unsigned flags, unsigned color,
struct drm_clip_rect *clips,
unsigned num_clips)
{
struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct vmw_framebuffer_dmabuf *vfbd =
vmw_framebuffer_to_vfbd(framebuffer);
struct drm_clip_rect norect;
int ret, increment = 1;
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
return ret;
if (!num_clips) {
num_clips = 1;
clips = &norect;
norect.x1 = norect.y1 = 0;
norect.x2 = framebuffer->width;
norect.y2 = framebuffer->height;
} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
num_clips /= 2;
increment = 2;
}
if (dev_priv->ldu_priv) {
ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base,
flags, color,
clips, num_clips, increment);
} else {
ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base,
flags, color,
clips, num_clips, increment, NULL);
}
ttm_read_unlock(&vmaster->lock);
return ret;
}
static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
.destroy = vmw_framebuffer_dmabuf_destroy,
.dirty = vmw_framebuffer_dmabuf_dirty,
};
/**
* Pin the dmabuffer to the start of vram.
*/
static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
{
struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
struct vmw_framebuffer_dmabuf *vfbd =
vmw_framebuffer_to_vfbd(&vfb->base);
int ret;
/* This code should not be used with screen objects */
BUG_ON(dev_priv->sou_priv);
vmw_overlay_pause_all(dev_priv);
ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false);
vmw_overlay_resume_all(dev_priv);
WARN_ON(ret != 0);
return 0;
}
static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
{
struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
struct vmw_framebuffer_dmabuf *vfbd =
vmw_framebuffer_to_vfbd(&vfb->base);
if (!vfbd->buffer) {
WARN_ON(!vfbd->buffer);
return 0;
}
return vmw_dmabuf_unpin(dev_priv, vfbd->buffer, false);
}
static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
struct vmw_dma_buffer *dmabuf,
struct vmw_framebuffer **out,
const struct drm_mode_fb_cmd
*mode_cmd)
{
struct drm_device *dev = dev_priv->dev;
struct vmw_framebuffer_dmabuf *vfbd;
unsigned int requested_size;
int ret;
requested_size = mode_cmd->height * mode_cmd->pitch;
if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
DRM_ERROR("Screen buffer object size is too small "
"for requested mode.\n");
return -EINVAL;
}
/* Limited framebuffer color depth support for screen objects */
if (dev_priv->sou_priv) {
switch (mode_cmd->depth) {
case 32:
case 24:
/* Only support 32 bpp for 32 and 24 depth fbs */
if (mode_cmd->bpp == 32)
break;
DRM_ERROR("Invalid color depth/bbp: %d %d\n",
mode_cmd->depth, mode_cmd->bpp);
return -EINVAL;
case 16:
case 15:
/* Only support 16 bpp for 16 and 15 depth fbs */
if (mode_cmd->bpp == 16)
break;
DRM_ERROR("Invalid color depth/bbp: %d %d\n",
mode_cmd->depth, mode_cmd->bpp);
return -EINVAL;
default:
DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
return -EINVAL;
}
}
vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
if (!vfbd) {
ret = -ENOMEM;
goto out_err1;
}
if (!vmw_dmabuf_reference(dmabuf)) {
DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
ret = -EINVAL;
goto out_err2;
}
vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
vfbd->base.base.pitches[0] = mode_cmd->pitch;
vfbd->base.base.depth = mode_cmd->depth;
vfbd->base.base.width = mode_cmd->width;
vfbd->base.base.height = mode_cmd->height;
if (!dev_priv->sou_priv) {
vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
}
vfbd->base.dmabuf = true;
vfbd->buffer = dmabuf;
vfbd->base.user_handle = mode_cmd->handle;
*out = &vfbd->base;
ret = drm_framebuffer_init(dev, &vfbd->base.base,
&vmw_framebuffer_dmabuf_funcs);
if (ret)
goto out_err3;
return 0;
out_err3:
vmw_dmabuf_unreference(&dmabuf);
out_err2:
kfree(vfbd);
out_err1:
return ret;
}
/*
* Generic Kernel modesetting functions
*/
static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
struct drm_file *file_priv,
struct drm_mode_fb_cmd2 *mode_cmd2)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
struct vmw_framebuffer *vfb = NULL;
struct vmw_surface *surface = NULL;
struct vmw_dma_buffer *bo = NULL;
struct ttm_base_object *user_obj;
struct drm_mode_fb_cmd mode_cmd;
int ret;
mode_cmd.width = mode_cmd2->width;
mode_cmd.height = mode_cmd2->height;
mode_cmd.pitch = mode_cmd2->pitches[0];
mode_cmd.handle = mode_cmd2->handles[0];
drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
&mode_cmd.bpp);
/**
* This code should be conditioned on Screen Objects not being used.
* If screen objects are used, we can allocate a GMR to hold the
* requested framebuffer.
*/
if (!vmw_kms_validate_mode_vram(dev_priv,
mode_cmd.pitch,
mode_cmd.height)) {
DRM_ERROR("VRAM size is too small for requested mode.\n");
return ERR_PTR(-ENOMEM);
}
/*
* Take a reference on the user object of the resource
* backing the kms fb. This ensures that user-space handle
* lookups on that resource will always work as long as
* it's registered with a kms framebuffer. This is important,
* since vmw_execbuf_process identifies resources in the
* command stream using user-space handles.
*/
user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
if (unlikely(user_obj == NULL)) {
DRM_ERROR("Could not locate requested kms frame buffer.\n");
return ERR_PTR(-ENOENT);
}
/**
* End conditioned code.
*/
/* returns either a dmabuf or surface */
ret = vmw_user_lookup_handle(dev_priv, tfile,
mode_cmd.handle,
&surface, &bo);
if (ret)
goto err_out;
/* Create the new framebuffer depending one what we got back */
if (bo)
ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
&mode_cmd);
else if (surface)
ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
surface, &vfb, &mode_cmd);
else
BUG();
err_out:
/* vmw_user_lookup_handle takes one ref so does new_fb */
if (bo)
vmw_dmabuf_unreference(&bo);
if (surface)
vmw_surface_unreference(&surface);
if (ret) {
DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
ttm_base_object_unref(&user_obj);
return ERR_PTR(ret);
} else
vfb->user_obj = user_obj;
return &vfb->base;
}
static const struct drm_mode_config_funcs vmw_kms_funcs = {
.fb_create = vmw_kms_fb_create,
};
int vmw_kms_present(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_framebuffer *vfb,
struct vmw_surface *surface,
uint32_t sid,
int32_t destX, int32_t destY,
struct drm_vmw_rect *clips,
uint32_t num_clips)
{
struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
struct drm_clip_rect *tmp;
struct drm_crtc *crtc;
size_t fifo_size;
int i, k, num_units;
int ret = 0; /* silence warning */
int left, right, top, bottom;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdBlitSurfaceToScreen body;
} *cmd;
SVGASignedRect *blits;
num_units = 0;
list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
if (crtc->fb != &vfb->base)
continue;
units[num_units++] = vmw_crtc_to_du(crtc);
}
BUG_ON(surface == NULL);
BUG_ON(!clips || !num_clips);
tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL);
if (unlikely(tmp == NULL)) {
DRM_ERROR("Temporary cliprect memory alloc failed.\n");
return -ENOMEM;
}
fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips;
cmd = kmalloc(fifo_size, GFP_KERNEL);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed to allocate temporary fifo memory.\n");
ret = -ENOMEM;
goto out_free_tmp;
}
left = clips->x;
right = clips->x + clips->w;
top = clips->y;
bottom = clips->y + clips->h;
for (i = 1; i < num_clips; i++) {
left = min_t(int, left, (int)clips[i].x);
right = max_t(int, right, (int)clips[i].x + clips[i].w);
top = min_t(int, top, (int)clips[i].y);
bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h);
}
/* only need to do this once */
memset(cmd, 0, fifo_size);
cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN);
blits = (SVGASignedRect *)&cmd[1];
cmd->body.srcRect.left = left;
cmd->body.srcRect.right = right;
cmd->body.srcRect.top = top;
cmd->body.srcRect.bottom = bottom;
for (i = 0; i < num_clips; i++) {
tmp[i].x1 = clips[i].x - left;
tmp[i].x2 = clips[i].x + clips[i].w - left;
tmp[i].y1 = clips[i].y - top;
tmp[i].y2 = clips[i].y + clips[i].h - top;
}
for (k = 0; k < num_units; k++) {
struct vmw_display_unit *unit = units[k];
struct vmw_clip_rect clip;
int num;
clip.x1 = left + destX - unit->crtc.x;
clip.y1 = top + destY - unit->crtc.y;
clip.x2 = right + destX - unit->crtc.x;
clip.y2 = bottom + destY - unit->crtc.y;
/* skip any crtcs that misses the clip region */
if (clip.x1 >= unit->crtc.mode.hdisplay ||
clip.y1 >= unit->crtc.mode.vdisplay ||
clip.x2 <= 0 || clip.y2 <= 0)
continue;
/*
* In order for the clip rects to be correctly scaled
* the src and dest rects needs to be the same size.
*/
cmd->body.destRect.left = clip.x1;
cmd->body.destRect.right = clip.x2;
cmd->body.destRect.top = clip.y1;
cmd->body.destRect.bottom = clip.y2;
/* create a clip rect of the crtc in dest coords */
clip.x2 = unit->crtc.mode.hdisplay - clip.x1;
clip.y2 = unit->crtc.mode.vdisplay - clip.y1;
clip.x1 = 0 - clip.x1;
clip.y1 = 0 - clip.y1;
/* need to reset sid as it is changed by execbuf */
cmd->body.srcImage.sid = sid;
cmd->body.destScreenId = unit->unit;
/* clip and write blits to cmd stream */
vmw_clip_cliprects(tmp, num_clips, clip, blits, &num);
/* if no cliprects hit skip this */
if (num == 0)
continue;
/* recalculate package length */
fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num;
cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header));
ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd,
fifo_size, 0, NULL, NULL);
if (unlikely(ret != 0))
break;
}
kfree(cmd);
out_free_tmp:
kfree(tmp);
return ret;
}
int vmw_kms_readback(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_framebuffer *vfb,
struct drm_vmw_fence_rep __user *user_fence_rep,
struct drm_vmw_rect *clips,
uint32_t num_clips)
{
struct vmw_framebuffer_dmabuf *vfbd =
vmw_framebuffer_to_vfbd(&vfb->base);
struct vmw_dma_buffer *dmabuf = vfbd->buffer;
struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
struct drm_crtc *crtc;
size_t fifo_size;
int i, k, ret, num_units, blits_pos;
struct {
uint32_t header;
SVGAFifoCmdDefineGMRFB body;
} *cmd;
struct {
uint32_t header;
SVGAFifoCmdBlitScreenToGMRFB body;
} *blits;
num_units = 0;
list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) {
if (crtc->fb != &vfb->base)
continue;
units[num_units++] = vmw_crtc_to_du(crtc);
}
BUG_ON(dmabuf == NULL);
BUG_ON(!clips || !num_clips);
/* take a safe guess at fifo size */
fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units;
cmd = kmalloc(fifo_size, GFP_KERNEL);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed to allocate temporary fifo memory.\n");
return -ENOMEM;
}
memset(cmd, 0, fifo_size);
cmd->header = SVGA_CMD_DEFINE_GMRFB;
cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
cmd->body.format.colorDepth = vfb->base.depth;
cmd->body.format.reserved = 0;
cmd->body.bytesPerLine = vfb->base.pitches[0];
cmd->body.ptr.gmrId = vfb->user_handle;
cmd->body.ptr.offset = 0;
blits = (void *)&cmd[1];
blits_pos = 0;
for (i = 0; i < num_units; i++) {
struct drm_vmw_rect *c = clips;
for (k = 0; k < num_clips; k++, c++) {
/* transform clip coords to crtc origin based coords */
int clip_x1 = c->x - units[i]->crtc.x;
int clip_x2 = c->x - units[i]->crtc.x + c->w;
int clip_y1 = c->y - units[i]->crtc.y;
int clip_y2 = c->y - units[i]->crtc.y + c->h;
int dest_x = c->x;
int dest_y = c->y;
/* compensate for clipping, we negate
* a negative number and add that.
*/
if (clip_x1 < 0)
dest_x += -clip_x1;
if (clip_y1 < 0)
dest_y += -clip_y1;
/* clip */
clip_x1 = max(clip_x1, 0);
clip_y1 = max(clip_y1, 0);
clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay);
clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay);
/* and cull any rects that misses the crtc */
if (clip_x1 >= units[i]->crtc.mode.hdisplay ||
clip_y1 >= units[i]->crtc.mode.vdisplay ||
clip_x2 <= 0 || clip_y2 <= 0)
continue;
blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
blits[blits_pos].body.srcScreenId = units[i]->unit;
blits[blits_pos].body.destOrigin.x = dest_x;
blits[blits_pos].body.destOrigin.y = dest_y;
blits[blits_pos].body.srcRect.left = clip_x1;
blits[blits_pos].body.srcRect.top = clip_y1;
blits[blits_pos].body.srcRect.right = clip_x2;
blits[blits_pos].body.srcRect.bottom = clip_y2;
blits_pos++;
}
}
/* reset size here and use calculated exact size from loops */
fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos;
ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size,
0, user_fence_rep, NULL);
kfree(cmd);
return ret;
}
int vmw_kms_init(struct vmw_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
int ret;
drm_mode_config_init(dev);
dev->mode_config.funcs = &vmw_kms_funcs;
dev->mode_config.min_width = 1;
dev->mode_config.min_height = 1;
/* assumed largest fb size */
dev->mode_config.max_width = 8192;
dev->mode_config.max_height = 8192;
ret = vmw_kms_init_screen_object_display(dev_priv);
if (ret) /* Fallback */
(void)vmw_kms_init_legacy_display_system(dev_priv);
return 0;
}
int vmw_kms_close(struct vmw_private *dev_priv)
{
/*
* Docs says we should take the lock before calling this function
* but since it destroys encoders and our destructor calls
* drm_encoder_cleanup which takes the lock we deadlock.
*/
drm_mode_config_cleanup(dev_priv->dev);
if (dev_priv->sou_priv)
vmw_kms_close_screen_object_display(dev_priv);
else
vmw_kms_close_legacy_display_system(dev_priv);
return 0;
}
int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_vmw_cursor_bypass_arg *arg = data;
struct vmw_display_unit *du;
struct drm_mode_object *obj;
struct drm_crtc *crtc;
int ret = 0;
mutex_lock(&dev->mode_config.mutex);
if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
du = vmw_crtc_to_du(crtc);
du->hotspot_x = arg->xhot;
du->hotspot_y = arg->yhot;
}
mutex_unlock(&dev->mode_config.mutex);
return 0;
}
obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
ret = -EINVAL;
goto out;
}
crtc = obj_to_crtc(obj);
du = vmw_crtc_to_du(crtc);
du->hotspot_x = arg->xhot;
du->hotspot_y = arg->yhot;
out:
mutex_unlock(&dev->mode_config.mutex);
return ret;
}
int vmw_kms_write_svga(struct vmw_private *vmw_priv,
unsigned width, unsigned height, unsigned pitch,
unsigned bpp, unsigned depth)
{
if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
else if (vmw_fifo_have_pitchlock(vmw_priv))
iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
return -EINVAL;
}
return 0;
}
int vmw_kms_save_vga(struct vmw_private *vmw_priv)
{
struct vmw_vga_topology_state *save;
uint32_t i;
vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
vmw_priv->vga_pitchlock =
vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
else if (vmw_fifo_have_pitchlock(vmw_priv))
vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
SVGA_FIFO_PITCHLOCK);
if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
return 0;
vmw_priv->num_displays = vmw_read(vmw_priv,
SVGA_REG_NUM_GUEST_DISPLAYS);
if (vmw_priv->num_displays == 0)
vmw_priv->num_displays = 1;
for (i = 0; i < vmw_priv->num_displays; ++i) {
save = &vmw_priv->vga_save[i];
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
if (i == 0 && vmw_priv->num_displays == 1 &&
save->width == 0 && save->height == 0) {
/*
* It should be fairly safe to assume that these
* values are uninitialized.
*/
save->width = vmw_priv->vga_width - save->pos_x;
save->height = vmw_priv->vga_height - save->pos_y;
}
}
return 0;
}
int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
{
struct vmw_vga_topology_state *save;
uint32_t i;
vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
vmw_priv->vga_pitchlock);
else if (vmw_fifo_have_pitchlock(vmw_priv))
iowrite32(vmw_priv->vga_pitchlock,
vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
return 0;
for (i = 0; i < vmw_priv->num_displays; ++i) {
save = &vmw_priv->vga_save[i];
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
}
return 0;
}
bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
uint32_t pitch,
uint32_t height)
{
return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
}
/**
* Function called by DRM code called with vbl_lock held.
*/
u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
{
return 0;
}
/**
* Function called by DRM code called with vbl_lock held.
*/
int vmw_enable_vblank(struct drm_device *dev, int crtc)
{
return -ENOSYS;
}
/**
* Function called by DRM code called with vbl_lock held.
*/
void vmw_disable_vblank(struct drm_device *dev, int crtc)
{
}
/*
* Small shared kms functions.
*/
int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
struct drm_vmw_rect *rects)
{
struct drm_device *dev = dev_priv->dev;
struct vmw_display_unit *du;
struct drm_connector *con;
mutex_lock(&dev->mode_config.mutex);
#if 0
{
unsigned int i;
DRM_INFO("%s: new layout ", __func__);
for (i = 0; i < num; i++)
DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
rects[i].w, rects[i].h);
DRM_INFO("\n");
}
#endif
list_for_each_entry(con, &dev->mode_config.connector_list, head) {
du = vmw_connector_to_du(con);
if (num > du->unit) {
du->pref_width = rects[du->unit].w;
du->pref_height = rects[du->unit].h;
du->pref_active = true;
du->gui_x = rects[du->unit].x;
du->gui_y = rects[du->unit].y;
} else {
du->pref_width = 800;
du->pref_height = 600;
du->pref_active = false;
}
con->status = vmw_du_connector_detect(con, true);
}
mutex_unlock(&dev->mode_config.mutex);
return 0;
}
int vmw_du_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct drm_framebuffer *old_fb = crtc->fb;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
struct drm_file *file_priv ;
struct vmw_fence_obj *fence = NULL;
struct drm_clip_rect clips;
int ret;
if (event == NULL)
return -EINVAL;
/* require ScreenObject support for page flipping */
if (!dev_priv->sou_priv)
return -ENOSYS;
file_priv = event->base.file_priv;
if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
return -EINVAL;
crtc->fb = fb;
/* do a full screen dirty update */
clips.x1 = clips.y1 = 0;
clips.x2 = fb->width;
clips.y2 = fb->height;
if (vfb->dmabuf)
ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb,
0, 0, &clips, 1, 1, &fence);
else
ret = do_surface_dirty_sou(dev_priv, file_priv, vfb,
0, 0, &clips, 1, 1, &fence);
if (ret != 0)
goto out_no_fence;
if (!fence) {
ret = -EINVAL;
goto out_no_fence;
}
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
/*
* No need to hold on to this now. The only cleanup
* we need to do if we fail is unref the fence.
*/
vmw_fence_obj_unreference(&fence);
if (vmw_crtc_to_du(crtc)->is_implicit)
vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc);
return ret;
out_no_fence:
crtc->fb = old_fb;
return ret;
}
void vmw_du_crtc_save(struct drm_crtc *crtc)
{
}
void vmw_du_crtc_restore(struct drm_crtc *crtc)
{
}
void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
u16 *r, u16 *g, u16 *b,
uint32_t start, uint32_t size)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
int i;
for (i = 0; i < size; i++) {
DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
r[i], g[i], b[i]);
vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
}
}
void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
{
}
void vmw_du_connector_save(struct drm_connector *connector)
{
}
void vmw_du_connector_restore(struct drm_connector *connector)
{
}
enum drm_connector_status
vmw_du_connector_detect(struct drm_connector *connector, bool force)
{
uint32_t num_displays;
struct drm_device *dev = connector->dev;
struct vmw_private *dev_priv = vmw_priv(dev);
struct vmw_display_unit *du = vmw_connector_to_du(connector);
mutex_lock(&dev_priv->hw_mutex);
num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
mutex_unlock(&dev_priv->hw_mutex);
return ((vmw_connector_to_du(connector)->unit < num_displays &&
du->pref_active) ?
connector_status_connected : connector_status_disconnected);
}
static struct drm_display_mode vmw_kms_connector_builtin[] = {
/* 640x480@60Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
752, 800, 0, 480, 489, 492, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 800x600@60Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
968, 1056, 0, 600, 601, 605, 628, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1024x768@60Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1184, 1344, 0, 768, 771, 777, 806, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 1152x864@75Hz */
{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1344, 1600, 0, 864, 865, 868, 900, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x768@60Hz */
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1472, 1664, 0, 768, 771, 778, 798, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x800@60Hz */
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1480, 1680, 0, 800, 803, 809, 831, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 1280x960@60Hz */
{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1488, 1800, 0, 960, 961, 964, 1000, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x1024@60Hz */
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1360x768@60Hz */
{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1536, 1792, 0, 768, 771, 777, 795, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x1050@60Hz */
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x900@60Hz */
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1672, 1904, 0, 900, 903, 909, 934, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1600x1200@60Hz */
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1680x1050@60Hz */
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1792x1344@60Hz */
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1853x1392@60Hz */
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1200@60Hz */
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1440@60Hz */
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 2560x1600@60Hz */
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* Terminate */
{ DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
};
/**
* vmw_guess_mode_timing - Provide fake timings for a
* 60Hz vrefresh mode.
*
* @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
* members filled in.
*/
static void vmw_guess_mode_timing(struct drm_display_mode *mode)
{
mode->hsync_start = mode->hdisplay + 50;
mode->hsync_end = mode->hsync_start + 50;
mode->htotal = mode->hsync_end + 50;
mode->vsync_start = mode->vdisplay + 50;
mode->vsync_end = mode->vsync_start + 50;
mode->vtotal = mode->vsync_end + 50;
mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
mode->vrefresh = drm_mode_vrefresh(mode);
}
int vmw_du_connector_fill_modes(struct drm_connector *connector,
uint32_t max_width, uint32_t max_height)
{
struct vmw_display_unit *du = vmw_connector_to_du(connector);
struct drm_device *dev = connector->dev;
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_display_mode *mode = NULL;
struct drm_display_mode *bmode;
struct drm_display_mode prefmode = { DRM_MODE("preferred",
DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
};
int i;
/* Add preferred mode */
{
mode = drm_mode_duplicate(dev, &prefmode);
if (!mode)
return 0;
mode->hdisplay = du->pref_width;
mode->vdisplay = du->pref_height;
vmw_guess_mode_timing(mode);
if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
mode->vdisplay)) {
drm_mode_probed_add(connector, mode);
} else {
drm_mode_destroy(dev, mode);
mode = NULL;
}
if (du->pref_mode) {
list_del_init(&du->pref_mode->head);
drm_mode_destroy(dev, du->pref_mode);
}
/* mode might be null here, this is intended */
du->pref_mode = mode;
}
for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
bmode = &vmw_kms_connector_builtin[i];
if (bmode->hdisplay > max_width ||
bmode->vdisplay > max_height)
continue;
if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
bmode->vdisplay))
continue;
mode = drm_mode_duplicate(dev, bmode);
if (!mode)
return 0;
mode->vrefresh = drm_mode_vrefresh(mode);
drm_mode_probed_add(connector, mode);
}
/* Move the prefered mode first, help apps pick the right mode. */
if (du->pref_mode)
list_move(&du->pref_mode->head, &connector->probed_modes);
drm_mode_connector_list_update(connector);
return 1;
}
int vmw_du_connector_set_property(struct drm_connector *connector,
struct drm_property *property,
uint64_t val)
{
return 0;
}
int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_update_layout_arg *arg =
(struct drm_vmw_update_layout_arg *)data;
struct vmw_master *vmaster = vmw_master(file_priv->master);
void __user *user_rects;
struct drm_vmw_rect *rects;
unsigned rects_size;
int ret;
int i;
struct drm_mode_config *mode_config = &dev->mode_config;
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
return ret;
if (!arg->num_outputs) {
struct drm_vmw_rect def_rect = {0, 0, 800, 600};
vmw_du_update_layout(dev_priv, 1, &def_rect);
goto out_unlock;
}
rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
GFP_KERNEL);
if (unlikely(!rects)) {
ret = -ENOMEM;
goto out_unlock;
}
user_rects = (void __user *)(unsigned long)arg->rects;
ret = copy_from_user(rects, user_rects, rects_size);
if (unlikely(ret != 0)) {
DRM_ERROR("Failed to get rects.\n");
ret = -EFAULT;
goto out_free;
}
for (i = 0; i < arg->num_outputs; ++i) {
if (rects[i].x < 0 ||
rects[i].y < 0 ||
rects[i].x + rects[i].w > mode_config->max_width ||
rects[i].y + rects[i].h > mode_config->max_height) {
DRM_ERROR("Invalid GUI layout.\n");
ret = -EINVAL;
goto out_free;
}
}
vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
out_free:
kfree(rects);
out_unlock:
ttm_read_unlock(&vmaster->lock);
return ret;
}
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