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

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// SPDX-License-Identifier: GPL-2.0 OR MIT
/**************************************************************************
*
* Copyright 2011-2015 VMware, Inc., Palo Alto, CA., USA
*
* 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"
#include <drm/drm_plane_helper.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#define vmw_crtc_to_sou(x) \
container_of(x, struct vmw_screen_object_unit, base.crtc)
#define vmw_encoder_to_sou(x) \
container_of(x, struct vmw_screen_object_unit, base.encoder)
#define vmw_connector_to_sou(x) \
container_of(x, struct vmw_screen_object_unit, base.connector)
/**
* struct vmw_kms_sou_surface_dirty - Closure structure for
* blit surface to screen command.
* @base: The base type we derive from. Used by vmw_kms_helper_dirty().
* @left: Left side of bounding box.
* @right: Right side of bounding box.
* @top: Top side of bounding box.
* @bottom: Bottom side of bounding box.
* @dst_x: Difference between source clip rects and framebuffer coordinates.
* @dst_y: Difference between source clip rects and framebuffer coordinates.
* @sid: Surface id of surface to copy from.
*/
struct vmw_kms_sou_surface_dirty {
struct vmw_kms_dirty base;
s32 left, right, top, bottom;
s32 dst_x, dst_y;
u32 sid;
};
/*
* SVGA commands that are used by this code. Please see the device headers
* for explanation.
*/
struct vmw_kms_sou_readback_blit {
uint32 header;
SVGAFifoCmdBlitScreenToGMRFB body;
};
struct vmw_kms_sou_bo_blit {
uint32 header;
SVGAFifoCmdBlitGMRFBToScreen body;
};
struct vmw_kms_sou_dirty_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdBlitSurfaceToScreen body;
};
/**
* Display unit using screen objects.
*/
struct vmw_screen_object_unit {
struct vmw_display_unit base;
unsigned long buffer_size; /**< Size of allocated buffer */
struct vmw_buffer_object *buffer; /**< Backing store buffer */
bool defined;
};
static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
{
vmw_du_cleanup(&sou->base);
kfree(sou);
}
/*
* Screen Object Display Unit CRTC functions
*/
static void vmw_sou_crtc_destroy(struct drm_crtc *crtc)
{
vmw_sou_destroy(vmw_crtc_to_sou(crtc));
}
/**
* Send the fifo command to create a screen.
*/
static int vmw_sou_fifo_create(struct vmw_private *dev_priv,
struct vmw_screen_object_unit *sou,
int x, int y,
struct drm_display_mode *mode)
{
size_t fifo_size;
struct {
struct {
uint32_t cmdType;
} header;
SVGAScreenObject obj;
} *cmd;
BUG_ON(!sou->buffer);
fifo_size = sizeof(*cmd);
cmd = vmw_fifo_reserve(dev_priv, fifo_size);
/* The hardware has hung, nothing we can do about it here. */
if (unlikely(cmd == NULL)) {
DRM_ERROR("Fifo reserve failed.\n");
return -ENOMEM;
}
memset(cmd, 0, fifo_size);
cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN;
cmd->obj.structSize = sizeof(SVGAScreenObject);
cmd->obj.id = sou->base.unit;
cmd->obj.flags = SVGA_SCREEN_HAS_ROOT |
(sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0);
cmd->obj.size.width = mode->hdisplay;
cmd->obj.size.height = mode->vdisplay;
cmd->obj.root.x = x;
cmd->obj.root.y = y;
sou->base.set_gui_x = cmd->obj.root.x;
sou->base.set_gui_y = cmd->obj.root.y;
/* Ok to assume that buffer is pinned in vram */
vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr);
cmd->obj.backingStore.pitch = mode->hdisplay * 4;
vmw_fifo_commit(dev_priv, fifo_size);
sou->defined = true;
return 0;
}
/**
* Send the fifo command to destroy a screen.
*/
static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv,
struct vmw_screen_object_unit *sou)
{
size_t fifo_size;
int ret;
struct {
struct {
uint32_t cmdType;
} header;
SVGAFifoCmdDestroyScreen body;
} *cmd;
/* no need to do anything */
if (unlikely(!sou->defined))
return 0;
fifo_size = sizeof(*cmd);
cmd = vmw_fifo_reserve(dev_priv, fifo_size);
/* the hardware has hung, nothing we can do about it here */
if (unlikely(cmd == NULL)) {
DRM_ERROR("Fifo reserve failed.\n");
return -ENOMEM;
}
memset(cmd, 0, fifo_size);
cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN;
cmd->body.screenId = sou->base.unit;
vmw_fifo_commit(dev_priv, fifo_size);
/* Force sync */
ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
if (unlikely(ret != 0))
DRM_ERROR("Failed to sync with HW");
else
sou->defined = false;
return ret;
}
/**
* vmw_sou_crtc_mode_set_nofb - Create new screen
*
* @crtc: CRTC associated with the new screen
*
* This function creates/destroys a screen. This function cannot fail, so if
* somehow we run into a failure, just do the best we can to get out.
*/
static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct vmw_private *dev_priv;
struct vmw_screen_object_unit *sou;
struct vmw_framebuffer *vfb;
struct drm_framebuffer *fb;
struct drm_plane_state *ps;
struct vmw_plane_state *vps;
int ret;
sou = vmw_crtc_to_sou(crtc);
dev_priv = vmw_priv(crtc->dev);
ps = crtc->primary->state;
fb = ps->fb;
vps = vmw_plane_state_to_vps(ps);
vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
if (sou->defined) {
ret = vmw_sou_fifo_destroy(dev_priv, sou);
if (ret) {
DRM_ERROR("Failed to destroy Screen Object\n");
return;
}
}
if (vfb) {
struct drm_connector_state *conn_state;
struct vmw_connector_state *vmw_conn_state;
int x, y;
sou->buffer = vps->bo;
sou->buffer_size = vps->bo_size;
if (sou->base.is_implicit) {
x = crtc->x;
y = crtc->y;
} else {
conn_state = sou->base.connector.state;
vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
x = vmw_conn_state->gui_x;
y = vmw_conn_state->gui_y;
}
ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode);
if (ret)
DRM_ERROR("Failed to define Screen Object %dx%d\n",
crtc->x, crtc->y);
vmw_kms_add_active(dev_priv, &sou->base, vfb);
} else {
sou->buffer = NULL;
sou->buffer_size = 0;
vmw_kms_del_active(dev_priv, &sou->base);
}
}
/**
* vmw_sou_crtc_helper_prepare - Noop
*
* @crtc: CRTC associated with the new screen
*
* Prepares the CRTC for a mode set, but we don't need to do anything here.
*/
static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc)
{
}
/**
* vmw_sou_crtc_atomic_enable - Noop
*
* @crtc: CRTC associated with the new screen
*
* This is called after a mode set has been completed.
*/
static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
}
/**
* vmw_sou_crtc_atomic_disable - Turns off CRTC
*
* @crtc: CRTC to be turned off
*/
static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct vmw_private *dev_priv;
struct vmw_screen_object_unit *sou;
int ret;
if (!crtc) {
DRM_ERROR("CRTC is NULL\n");
return;
}
sou = vmw_crtc_to_sou(crtc);
dev_priv = vmw_priv(crtc->dev);
if (sou->defined) {
ret = vmw_sou_fifo_destroy(dev_priv, sou);
if (ret)
DRM_ERROR("Failed to destroy Screen Object\n");
}
}
static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *new_fb,
struct drm_pending_vblank_event *event,
uint32_t flags,
struct drm_modeset_acquire_ctx *ctx)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
int ret;
if (!vmw_kms_crtc_flippable(dev_priv, crtc))
return -EINVAL;
ret = drm_atomic_helper_page_flip(crtc, new_fb, event, flags, ctx);
if (ret) {
DRM_ERROR("Page flip error %d.\n", ret);
return ret;
}
if (vmw_crtc_to_du(crtc)->is_implicit)
vmw_kms_update_implicit_fb(dev_priv, crtc);
return ret;
}
static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
.gamma_set = vmw_du_crtc_gamma_set,
.destroy = vmw_sou_crtc_destroy,
.reset = vmw_du_crtc_reset,
.atomic_duplicate_state = vmw_du_crtc_duplicate_state,
.atomic_destroy_state = vmw_du_crtc_destroy_state,
.set_config = vmw_kms_set_config,
.page_flip = vmw_sou_crtc_page_flip,
};
/*
* Screen Object Display Unit encoder functions
*/
static void vmw_sou_encoder_destroy(struct drm_encoder *encoder)
{
vmw_sou_destroy(vmw_encoder_to_sou(encoder));
}
static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = {
.destroy = vmw_sou_encoder_destroy,
};
/*
* Screen Object Display Unit connector functions
*/
static void vmw_sou_connector_destroy(struct drm_connector *connector)
{
vmw_sou_destroy(vmw_connector_to_sou(connector));
}
static const struct drm_connector_funcs vmw_sou_connector_funcs = {
.dpms = vmw_du_connector_dpms,
.detect = vmw_du_connector_detect,
.fill_modes = vmw_du_connector_fill_modes,
.set_property = vmw_du_connector_set_property,
.destroy = vmw_sou_connector_destroy,
.reset = vmw_du_connector_reset,
.atomic_duplicate_state = vmw_du_connector_duplicate_state,
.atomic_destroy_state = vmw_du_connector_destroy_state,
.atomic_set_property = vmw_du_connector_atomic_set_property,
.atomic_get_property = vmw_du_connector_atomic_get_property,
};
static const struct
drm_connector_helper_funcs vmw_sou_connector_helper_funcs = {
.best_encoder = drm_atomic_helper_best_encoder,
};
/*
* Screen Object Display Plane Functions
*/
/**
* vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer
*
* @plane: display plane
* @old_state: Contains the FB to clean up
*
* Unpins the display surface
*
* Returns 0 on success
*/
static void
vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
struct drm_crtc *crtc = plane->state->crtc ?
plane->state->crtc : old_state->crtc;
if (vps->bo)
vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false);
vmw_bo_unreference(&vps->bo);
vps->bo_size = 0;
vmw_du_plane_cleanup_fb(plane, old_state);
}
/**
* vmw_sou_primary_plane_prepare_fb - allocate backing buffer
*
* @plane: display plane
* @new_state: info on the new plane state, including the FB
*
* The SOU backing buffer is our equivalent of the display plane.
*
* Returns 0 on success
*/
static int
vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
struct drm_framebuffer *new_fb = new_state->fb;
struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc;
struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
struct vmw_private *dev_priv;
size_t size;
int ret;
if (!new_fb) {
vmw_bo_unreference(&vps->bo);
vps->bo_size = 0;
return 0;
}
size = new_state->crtc_w * new_state->crtc_h * 4;
dev_priv = vmw_priv(crtc->dev);
if (vps->bo) {
if (vps->bo_size == size) {
/*
* Note that this might temporarily up the pin-count
* to 2, until cleanup_fb() is called.
*/
return vmw_bo_pin_in_vram(dev_priv, vps->bo,
true);
}
vmw_bo_unreference(&vps->bo);
vps->bo_size = 0;
}
vps->bo = kzalloc(sizeof(*vps->bo), GFP_KERNEL);
if (!vps->bo)
return -ENOMEM;
vmw_svga_enable(dev_priv);
/* After we have alloced the backing store might not be able to
* resume the overlays, this is preferred to failing to alloc.
*/
vmw_overlay_pause_all(dev_priv);
ret = vmw_bo_init(dev_priv, vps->bo, size,
&vmw_vram_ne_placement,
false, &vmw_bo_bo_free);
vmw_overlay_resume_all(dev_priv);
if (ret) {
vps->bo = NULL; /* vmw_bo_init frees on error */
return ret;
}
vps->bo_size = size;
/*
* TTM already thinks the buffer is pinned, but make sure the
* pin_count is upped.
*/
return vmw_bo_pin_in_vram(dev_priv, vps->bo, true);
}
static void
vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_crtc *crtc = plane->state->crtc;
struct drm_pending_vblank_event *event = NULL;
struct vmw_fence_obj *fence = NULL;
int ret;
if (crtc && plane->state->fb) {
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_framebuffer *vfb =
vmw_framebuffer_to_vfb(plane->state->fb);
struct drm_vmw_rect vclips;
vclips.x = crtc->x;
vclips.y = crtc->y;
vclips.w = crtc->mode.hdisplay;
vclips.h = crtc->mode.vdisplay;
if (vfb->bo)
ret = vmw_kms_sou_do_bo_dirty(dev_priv, vfb, NULL,
&vclips, 1, 1, true,
&fence, crtc);
else
ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL,
&vclips, NULL, 0, 0,
1, 1, &fence, crtc);
/*
* We cannot really fail this function, so if we do, then output
* an error and maintain consistent atomic state.
*/
if (ret != 0)
DRM_ERROR("Failed to update screen.\n");
} else {
/*
* When disabling a plane, CRTC and FB should always be NULL
* together, otherwise it's an error.
* Here primary plane is being disable so should really blank
* the screen object display unit, if not already done.
*/
return;
}
event = crtc->state->event;
/*
* In case of failure and other cases, vblank event will be sent in
* vmw_du_crtc_atomic_flush.
*/
if (event && fence) {
struct drm_file *file_priv = event->base.file_priv;
ret = vmw_event_fence_action_queue(file_priv,
fence,
&event->base,
&event->event.vbl.tv_sec,
&event->event.vbl.tv_usec,
true);
if (unlikely(ret != 0))
DRM_ERROR("Failed to queue event on fence.\n");
else
crtc->state->event = NULL;
}
if (fence)
vmw_fence_obj_unreference(&fence);
}
static const struct drm_plane_funcs vmw_sou_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_primary_plane_destroy,
.reset = vmw_du_plane_reset,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
static const struct drm_plane_funcs vmw_sou_cursor_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_cursor_plane_destroy,
.reset = vmw_du_plane_reset,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
/*
* Atomic Helpers
*/
static const struct
drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = {
.atomic_check = vmw_du_cursor_plane_atomic_check,
.atomic_update = vmw_du_cursor_plane_atomic_update,
.prepare_fb = vmw_du_cursor_plane_prepare_fb,
.cleanup_fb = vmw_du_plane_cleanup_fb,
};
static const struct
drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = {
.atomic_check = vmw_du_primary_plane_atomic_check,
.atomic_update = vmw_sou_primary_plane_atomic_update,
.prepare_fb = vmw_sou_primary_plane_prepare_fb,
.cleanup_fb = vmw_sou_primary_plane_cleanup_fb,
};
static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = {
.prepare = vmw_sou_crtc_helper_prepare,
.mode_set_nofb = vmw_sou_crtc_mode_set_nofb,
.atomic_check = vmw_du_crtc_atomic_check,
.atomic_begin = vmw_du_crtc_atomic_begin,
.atomic_flush = vmw_du_crtc_atomic_flush,
.atomic_enable = vmw_sou_crtc_atomic_enable,
.atomic_disable = vmw_sou_crtc_atomic_disable,
};
static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
{
struct vmw_screen_object_unit *sou;
struct drm_device *dev = dev_priv->dev;
struct drm_connector *connector;
struct drm_encoder *encoder;
struct drm_plane *primary, *cursor;
struct drm_crtc *crtc;
int ret;
sou = kzalloc(sizeof(*sou), GFP_KERNEL);
if (!sou)
return -ENOMEM;
sou->base.unit = unit;
crtc = &sou->base.crtc;
encoder = &sou->base.encoder;
connector = &sou->base.connector;
primary = &sou->base.primary;
cursor = &sou->base.cursor;
sou->base.active_implicit = false;
sou->base.pref_active = (unit == 0);
sou->base.pref_width = dev_priv->initial_width;
sou->base.pref_height = dev_priv->initial_height;
sou->base.pref_mode = NULL;
/*
* Remove this after enabling atomic because property values can
* only exist in a state object
*/
sou->base.is_implicit = false;
/* Initialize primary plane */
vmw_du_plane_reset(primary);
ret = drm_universal_plane_init(dev, &sou->base.primary,
0, &vmw_sou_plane_funcs,
vmw_primary_plane_formats,
ARRAY_SIZE(vmw_primary_plane_formats),
NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
if (ret) {
DRM_ERROR("Failed to initialize primary plane");
goto err_free;
}
drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs);
/* Initialize cursor plane */
vmw_du_plane_reset(cursor);
ret = drm_universal_plane_init(dev, &sou->base.cursor,
0, &vmw_sou_cursor_funcs,
vmw_cursor_plane_formats,
ARRAY_SIZE(vmw_cursor_plane_formats),
NULL, DRM_PLANE_TYPE_CURSOR, NULL);
if (ret) {
DRM_ERROR("Failed to initialize cursor plane");
drm_plane_cleanup(&sou->base.primary);
goto err_free;
}
drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs);
vmw_du_connector_reset(connector);
ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
if (ret) {
DRM_ERROR("Failed to initialize connector\n");
goto err_free;
}
drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs);
connector->status = vmw_du_connector_detect(connector, true);
vmw_connector_state_to_vcs(connector->state)->is_implicit = false;
ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs,
DRM_MODE_ENCODER_VIRTUAL, NULL);
if (ret) {
DRM_ERROR("Failed to initialize encoder\n");
goto err_free_connector;
}
(void) drm_connector_attach_encoder(connector, encoder);
encoder->possible_crtcs = (1 << unit);
encoder->possible_clones = 0;
ret = drm_connector_register(connector);
if (ret) {
DRM_ERROR("Failed to register connector\n");
goto err_free_encoder;
}
vmw_du_crtc_reset(crtc);
ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary,
&sou->base.cursor,
&vmw_screen_object_crtc_funcs, NULL);
if (ret) {
DRM_ERROR("Failed to initialize CRTC\n");
goto err_free_unregister;
}
drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs);
drm_mode_crtc_set_gamma_size(crtc, 256);
drm_object_attach_property(&connector->base,
dev_priv->hotplug_mode_update_property, 1);
drm_object_attach_property(&connector->base,
dev->mode_config.suggested_x_property, 0);
drm_object_attach_property(&connector->base,
dev->mode_config.suggested_y_property, 0);
if (dev_priv->implicit_placement_property)
drm_object_attach_property
(&connector->base,
dev_priv->implicit_placement_property,
sou->base.is_implicit);
return 0;
err_free_unregister:
drm_connector_unregister(connector);
err_free_encoder:
drm_encoder_cleanup(encoder);
err_free_connector:
drm_connector_cleanup(connector);
err_free:
kfree(sou);
return ret;
}
int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
{
struct drm_device *dev = dev_priv->dev;
int i, ret;
if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) {
DRM_INFO("Not using screen objects,"
" missing cap SCREEN_OBJECT_2\n");
return -ENOSYS;
}
ret = -ENOMEM;
dev_priv->num_implicit = 0;
dev_priv->implicit_fb = NULL;
ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
if (unlikely(ret != 0))
return ret;
vmw_kms_create_implicit_placement_property(dev_priv, false);
for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
vmw_sou_init(dev_priv, i);
dev_priv->active_display_unit = vmw_du_screen_object;
DRM_INFO("Screen Objects Display Unit initialized\n");
return 0;
}
static int do_bo_define_gmrfb(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer)
{
struct vmw_buffer_object *buf =
container_of(framebuffer, struct vmw_framebuffer_bo,
base)->buffer;
int depth = framebuffer->base.format->depth;
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;
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (!cmd) {
DRM_ERROR("Out of fifo space for dirty framebuffer command.\n");
return -ENOMEM;
}
cmd->header = SVGA_CMD_DEFINE_GMRFB;
cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8;
cmd->body.format.colorDepth = depth;
cmd->body.format.reserved = 0;
cmd->body.bytesPerLine = framebuffer->base.pitches[0];
/* Buffer is reserved in vram or GMR */
vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
}
/**
* vmw_sou_surface_fifo_commit - Callback to fill in and submit a
* blit surface to screen command.
*
* @dirty: The closure structure.
*
* Fills in the missing fields in the command, and translates the cliprects
* to match the destination bounding box encoded.
*/
static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty)
{
struct vmw_kms_sou_surface_dirty *sdirty =
container_of(dirty, typeof(*sdirty), base);
struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x;
s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y;
size_t region_size = dirty->num_hits * sizeof(SVGASignedRect);
SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
int i;
if (!dirty->num_hits) {
vmw_fifo_commit(dirty->dev_priv, 0);
return;
}
cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
cmd->header.size = sizeof(cmd->body) + region_size;
/*
* Use the destination bounding box to specify destination - and
* source bounding regions.
*/
cmd->body.destRect.left = sdirty->left;
cmd->body.destRect.right = sdirty->right;
cmd->body.destRect.top = sdirty->top;
cmd->body.destRect.bottom = sdirty->bottom;
cmd->body.srcRect.left = sdirty->left + trans_x;
cmd->body.srcRect.right = sdirty->right + trans_x;
cmd->body.srcRect.top = sdirty->top + trans_y;
cmd->body.srcRect.bottom = sdirty->bottom + trans_y;
cmd->body.srcImage.sid = sdirty->sid;
cmd->body.destScreenId = dirty->unit->unit;
/* Blits are relative to the destination rect. Translate. */
for (i = 0; i < dirty->num_hits; ++i, ++blit) {
blit->left -= sdirty->left;
blit->right -= sdirty->left;
blit->top -= sdirty->top;
blit->bottom -= sdirty->top;
}
vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd));
sdirty->left = sdirty->top = S32_MAX;
sdirty->right = sdirty->bottom = S32_MIN;
}
/**
* vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect.
*
* @dirty: The closure structure
*
* Encodes a SVGASignedRect cliprect and updates the bounding box of the
* BLIT_SURFACE_TO_SCREEN command.
*/
static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty)
{
struct vmw_kms_sou_surface_dirty *sdirty =
container_of(dirty, typeof(*sdirty), base);
struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
/* Destination rect. */
blit += dirty->num_hits;
blit->left = dirty->unit_x1;
blit->top = dirty->unit_y1;
blit->right = dirty->unit_x2;
blit->bottom = dirty->unit_y2;
/* Destination bounding box */
sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
dirty->num_hits++;
}
/**
* vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer
*
* @dev_priv: Pointer to the device private structure.
* @framebuffer: Pointer to the surface-buffer backed framebuffer.
* @clips: Array of clip rects. Either @clips or @vclips must be NULL.
* @vclips: Alternate array of clip rects. Either @clips or @vclips must
* be NULL.
* @srf: Pointer to surface to blit from. If NULL, the surface attached
* to @framebuffer will be used.
* @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
* @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
* @num_clips: Number of clip rects in @clips.
* @inc: Increment to use when looping over @clips.
* @out_fence: If non-NULL, will return a ref-counted pointer to a
* struct vmw_fence_obj. The returned fence pointer may be NULL in which
* case the device has already synchronized.
* @crtc: If crtc is passed, perform surface dirty on that crtc only.
*
* Returns 0 on success, negative error code on failure. -ERESTARTSYS if
* interrupted.
*/
int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
struct drm_clip_rect *clips,
struct drm_vmw_rect *vclips,
struct vmw_resource *srf,
s32 dest_x,
s32 dest_y,
unsigned num_clips, int inc,
struct vmw_fence_obj **out_fence,
struct drm_crtc *crtc)
{
struct vmw_framebuffer_surface *vfbs =
container_of(framebuffer, typeof(*vfbs), base);
struct vmw_kms_sou_surface_dirty sdirty;
struct vmw_validation_ctx ctx;
int ret;
if (!srf)
srf = &vfbs->surface->res;
ret = vmw_kms_helper_resource_prepare(srf, true, &ctx);
if (ret)
return ret;
sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit;
sdirty.base.clip = vmw_sou_surface_clip;
sdirty.base.dev_priv = dev_priv;
sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) +
sizeof(SVGASignedRect) * num_clips;
sdirty.base.crtc = crtc;
sdirty.sid = srf->id;
sdirty.left = sdirty.top = S32_MAX;
sdirty.right = sdirty.bottom = S32_MIN;
sdirty.dst_x = dest_x;
sdirty.dst_y = dest_y;
ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
dest_x, dest_y, num_clips, inc,
&sdirty.base);
vmw_kms_helper_resource_finish(&ctx, out_fence);
return ret;
}
/**
* vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips.
*
* @dirty: The closure structure.
*
* Commits a previously built command buffer of readback clips.
*/
static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty)
{
if (!dirty->num_hits) {
vmw_fifo_commit(dirty->dev_priv, 0);
return;
}
vmw_fifo_commit(dirty->dev_priv,
sizeof(struct vmw_kms_sou_bo_blit) *
dirty->num_hits);
}
/**
* vmw_sou_bo_clip - Callback to encode a readback cliprect.
*
* @dirty: The closure structure
*
* Encodes a BLIT_GMRFB_TO_SCREEN cliprect.
*/
static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty)
{
struct vmw_kms_sou_bo_blit *blit = dirty->cmd;
blit += dirty->num_hits;
blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
blit->body.destScreenId = dirty->unit->unit;
blit->body.srcOrigin.x = dirty->fb_x;
blit->body.srcOrigin.y = dirty->fb_y;
blit->body.destRect.left = dirty->unit_x1;
blit->body.destRect.top = dirty->unit_y1;
blit->body.destRect.right = dirty->unit_x2;
blit->body.destRect.bottom = dirty->unit_y2;
dirty->num_hits++;
}
/**
* vmw_kms_do_bo_dirty - Dirty part of a buffer-object backed framebuffer
*
* @dev_priv: Pointer to the device private structure.
* @framebuffer: Pointer to the buffer-object backed framebuffer.
* @clips: Array of clip rects.
* @vclips: Alternate array of clip rects. Either @clips or @vclips must
* be NULL.
* @num_clips: Number of clip rects in @clips.
* @increment: Increment to use when looping over @clips.
* @interruptible: Whether to perform waits interruptible if possible.
* @out_fence: If non-NULL, will return a ref-counted pointer to a
* struct vmw_fence_obj. The returned fence pointer may be NULL in which
* case the device has already synchronized.
* @crtc: If crtc is passed, perform bo dirty on that crtc only.
*
* Returns 0 on success, negative error code on failure. -ERESTARTSYS if
* interrupted.
*/
int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
struct drm_clip_rect *clips,
struct drm_vmw_rect *vclips,
unsigned num_clips, int increment,
bool interruptible,
struct vmw_fence_obj **out_fence,
struct drm_crtc *crtc)
{
struct vmw_buffer_object *buf =
container_of(framebuffer, struct vmw_framebuffer_bo,
base)->buffer;
struct vmw_kms_dirty dirty;
int ret;
ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible,
false, false);
if (ret)
return ret;
ret = do_bo_define_gmrfb(dev_priv, framebuffer);
if (unlikely(ret != 0))
goto out_revert;
dirty.crtc = crtc;
dirty.fifo_commit = vmw_sou_bo_fifo_commit;
dirty.clip = vmw_sou_bo_clip;
dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) *
num_clips;
ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
0, 0, num_clips, increment, &dirty);
vmw_kms_helper_buffer_finish(dev_priv, NULL, buf, out_fence, NULL);
return ret;
out_revert:
vmw_kms_helper_buffer_revert(buf);
return ret;
}
/**
* vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips.
*
* @dirty: The closure structure.
*
* Commits a previously built command buffer of readback clips.
*/
static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty)
{
if (!dirty->num_hits) {
vmw_fifo_commit(dirty->dev_priv, 0);
return;
}
vmw_fifo_commit(dirty->dev_priv,
sizeof(struct vmw_kms_sou_readback_blit) *
dirty->num_hits);
}
/**
* vmw_sou_readback_clip - Callback to encode a readback cliprect.
*
* @dirty: The closure structure
*
* Encodes a BLIT_SCREEN_TO_GMRFB cliprect.
*/
static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty)
{
struct vmw_kms_sou_readback_blit *blit = dirty->cmd;
blit += dirty->num_hits;
blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
blit->body.srcScreenId = dirty->unit->unit;
blit->body.destOrigin.x = dirty->fb_x;
blit->body.destOrigin.y = dirty->fb_y;
blit->body.srcRect.left = dirty->unit_x1;
blit->body.srcRect.top = dirty->unit_y1;
blit->body.srcRect.right = dirty->unit_x2;
blit->body.srcRect.bottom = dirty->unit_y2;
dirty->num_hits++;
}
/**
* vmw_kms_sou_readback - Perform a readback from the screen object system to
* a buffer-object backed framebuffer.
*
* @dev_priv: Pointer to the device private structure.
* @file_priv: Pointer to a struct drm_file identifying the caller.
* Must be set to NULL if @user_fence_rep is NULL.
* @vfb: Pointer to the buffer-object backed framebuffer.
* @user_fence_rep: User-space provided structure for fence information.
* Must be set to non-NULL if @file_priv is non-NULL.
* @vclips: Array of clip rects.
* @num_clips: Number of clip rects in @vclips.
* @crtc: If crtc is passed, readback on that crtc only.
*
* Returns 0 on success, negative error code on failure. -ERESTARTSYS if
* interrupted.
*/
int vmw_kms_sou_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 *vclips,
uint32_t num_clips,
struct drm_crtc *crtc)
{
struct vmw_buffer_object *buf =
container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
struct vmw_kms_dirty dirty;
int ret;
ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, true, false,
false);
if (ret)
return ret;
ret = do_bo_define_gmrfb(dev_priv, vfb);
if (unlikely(ret != 0))
goto out_revert;
dirty.crtc = crtc;
dirty.fifo_commit = vmw_sou_readback_fifo_commit;
dirty.clip = vmw_sou_readback_clip;
dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) *
num_clips;
ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips,
0, 0, num_clips, 1, &dirty);
vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL,
user_fence_rep);
return ret;
out_revert:
vmw_kms_helper_buffer_revert(buf);
return ret;
}
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