forked from KolibriOS/kolibrios
1269 lines
34 KiB
C
1269 lines
34 KiB
C
/******************************************************************************
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*
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* COPYRIGHT © 2014-2015 VMware, Inc., Palo Alto, CA., USA
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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******************************************************************************/
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#include "vmwgfx_kms.h"
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#include "device_include/svga3d_surfacedefs.h"
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#include <drm/drm_plane_helper.h>
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#define vmw_crtc_to_stdu(x) \
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container_of(x, struct vmw_screen_target_display_unit, base.crtc)
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#define vmw_encoder_to_stdu(x) \
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container_of(x, struct vmw_screen_target_display_unit, base.encoder)
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#define vmw_connector_to_stdu(x) \
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container_of(x, struct vmw_screen_target_display_unit, base.connector)
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enum stdu_content_type {
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SAME_AS_DISPLAY = 0,
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SEPARATE_SURFACE,
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SEPARATE_DMA
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};
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/**
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* struct vmw_stdu_dirty - closure structure for the update functions
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*
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* @base: The base type we derive from. Used by vmw_kms_helper_dirty().
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* @transfer: Transfer direction for DMA command.
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* @left: Left side of bounding box.
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* @right: Right side of bounding box.
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* @top: Top side of bounding box.
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* @bottom: Bottom side of bounding box.
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* @buf: DMA buffer when DMA-ing between buffer and screen targets.
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* @sid: Surface ID when copying between surface and screen targets.
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*/
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struct vmw_stdu_dirty {
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struct vmw_kms_dirty base;
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SVGA3dTransferType transfer;
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s32 left, right, top, bottom;
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u32 pitch;
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union {
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struct vmw_dma_buffer *buf;
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u32 sid;
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};
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};
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/*
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* SVGA commands that are used by this code. Please see the device headers
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* for explanation.
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*/
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struct vmw_stdu_update {
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SVGA3dCmdHeader header;
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SVGA3dCmdUpdateGBScreenTarget body;
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};
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struct vmw_stdu_dma {
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SVGA3dCmdHeader header;
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SVGA3dCmdSurfaceDMA body;
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};
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struct vmw_stdu_surface_copy {
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SVGA3dCmdHeader header;
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SVGA3dCmdSurfaceCopy body;
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};
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/**
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* struct vmw_screen_target_display_unit
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*
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* @base: VMW specific DU structure
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* @display_srf: surface to be displayed. The dimension of this will always
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* match the display mode. If the display mode matches
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* content_vfbs dimensions, then this is a pointer into the
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* corresponding field in content_vfbs. If not, then this
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* is a separate buffer to which content_vfbs will blit to.
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* @content_fb: holds the rendered content, can be a surface or DMA buffer
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* @content_type: content_fb type
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* @defined: true if the current display unit has been initialized
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*/
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struct vmw_screen_target_display_unit {
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struct vmw_display_unit base;
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struct vmw_surface *display_srf;
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struct drm_framebuffer *content_fb;
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enum stdu_content_type content_fb_type;
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bool defined;
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};
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static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
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/******************************************************************************
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* Screen Target Display Unit helper Functions
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*****************************************************************************/
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/**
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* vmw_stdu_pin_display - pins the resource associated with the display surface
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*
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* @stdu: contains the display surface
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*
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* Since the display surface can either be a private surface allocated by us,
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* or it can point to the content surface, we use this function to not pin the
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* same resource twice.
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*/
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static int vmw_stdu_pin_display(struct vmw_screen_target_display_unit *stdu)
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{
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return vmw_resource_pin(&stdu->display_srf->res, false);
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}
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/**
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* vmw_stdu_unpin_display - unpins the resource associated with display surface
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*
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* @stdu: contains the display surface
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*
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* If the display surface was privatedly allocated by
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* vmw_surface_gb_priv_define() and not registered as a framebuffer, then it
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* won't be automatically cleaned up when all the framebuffers are freed. As
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* such, we have to explicitly call vmw_resource_unreference() to get it freed.
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*/
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static void vmw_stdu_unpin_display(struct vmw_screen_target_display_unit *stdu)
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{
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if (stdu->display_srf) {
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struct vmw_resource *res = &stdu->display_srf->res;
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vmw_resource_unpin(res);
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if (stdu->content_fb_type != SAME_AS_DISPLAY) {
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vmw_resource_unreference(&res);
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stdu->content_fb_type = SAME_AS_DISPLAY;
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}
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stdu->display_srf = NULL;
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}
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}
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/******************************************************************************
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* Screen Target Display Unit CRTC Functions
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*****************************************************************************/
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/**
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* vmw_stdu_crtc_destroy - cleans up the STDU
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*
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* @crtc: used to get a reference to the containing STDU
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*/
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static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
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{
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vmw_stdu_destroy(vmw_crtc_to_stdu(crtc));
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}
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/**
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* vmw_stdu_define_st - Defines a Screen Target
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*
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* @dev_priv: VMW DRM device
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* @stdu: display unit to create a Screen Target for
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*
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* Creates a STDU that we can used later. This function is called whenever the
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* framebuffer size changes.
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*
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* RETURNs:
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* 0 on success, error code on failure
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*/
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static int vmw_stdu_define_st(struct vmw_private *dev_priv,
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struct vmw_screen_target_display_unit *stdu)
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{
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdDefineGBScreenTarget body;
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} *cmd;
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Out of FIFO space defining Screen Target\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.stid = stdu->base.unit;
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cmd->body.width = stdu->display_srf->base_size.width;
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cmd->body.height = stdu->display_srf->base_size.height;
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cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0;
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cmd->body.dpi = 0;
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cmd->body.xRoot = stdu->base.crtc.x;
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cmd->body.yRoot = stdu->base.crtc.y;
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if (!stdu->base.is_implicit) {
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cmd->body.xRoot = stdu->base.gui_x;
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cmd->body.yRoot = stdu->base.gui_y;
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}
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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stdu->defined = true;
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return 0;
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}
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/**
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* vmw_stdu_bind_st - Binds a surface to a Screen Target
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*
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* @dev_priv: VMW DRM device
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* @stdu: display unit affected
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* @res: Buffer to bind to the screen target. Set to NULL to blank screen.
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*
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* Binding a surface to a Screen Target the same as flipping
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*/
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static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
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struct vmw_screen_target_display_unit *stdu,
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struct vmw_resource *res)
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{
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SVGA3dSurfaceImageId image;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdBindGBScreenTarget body;
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} *cmd;
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if (!stdu->defined) {
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DRM_ERROR("No screen target defined\n");
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return -EINVAL;
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}
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/* Set up image using information in vfb */
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memset(&image, 0, sizeof(image));
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image.sid = res ? res->id : SVGA3D_INVALID_ID;
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Out of FIFO space binding a screen target\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.stid = stdu->base.unit;
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cmd->body.image = image;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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return 0;
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}
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/**
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* vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a
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* bounding box.
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*
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* @cmd: Pointer to command stream.
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* @unit: Screen target unit.
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* @left: Left side of bounding box.
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* @right: Right side of bounding box.
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* @top: Top side of bounding box.
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* @bottom: Bottom side of bounding box.
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*/
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static void vmw_stdu_populate_update(void *cmd, int unit,
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s32 left, s32 right, s32 top, s32 bottom)
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{
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struct vmw_stdu_update *update = cmd;
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update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET;
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update->header.size = sizeof(update->body);
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update->body.stid = unit;
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update->body.rect.x = left;
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update->body.rect.y = top;
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update->body.rect.w = right - left;
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update->body.rect.h = bottom - top;
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}
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/**
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* vmw_stdu_update_st - Full update of a Screen Target
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*
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* @dev_priv: VMW DRM device
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* @stdu: display unit affected
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*
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* This function needs to be called whenever the content of a screen
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* target has changed completely. Typically as a result of a backing
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* surface change.
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*
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* RETURNS:
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* 0 on success, error code on failure
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*/
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static int vmw_stdu_update_st(struct vmw_private *dev_priv,
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struct vmw_screen_target_display_unit *stdu)
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{
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struct vmw_stdu_update *cmd;
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struct drm_crtc *crtc = &stdu->base.crtc;
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if (!stdu->defined) {
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DRM_ERROR("No screen target defined");
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return -EINVAL;
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}
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Out of FIFO space updating a Screen Target\n");
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return -ENOMEM;
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}
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vmw_stdu_populate_update(cmd, stdu->base.unit, 0, crtc->mode.hdisplay,
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0, crtc->mode.vdisplay);
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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return 0;
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}
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/**
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* vmw_stdu_destroy_st - Destroy a Screen Target
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*
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* @dev_priv: VMW DRM device
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* @stdu: display unit to destroy
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*/
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static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
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struct vmw_screen_target_display_unit *stdu)
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{
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int ret;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdDestroyGBScreenTarget body;
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} *cmd;
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/* Nothing to do if not successfully defined */
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if (unlikely(!stdu->defined))
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return 0;
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Out of FIFO space, screen target not destroyed\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.stid = stdu->base.unit;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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/* Force sync */
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ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
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if (unlikely(ret != 0))
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DRM_ERROR("Failed to sync with HW");
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stdu->defined = false;
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return ret;
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}
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/**
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* vmw_stdu_crtc_set_config - Sets a mode
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*
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* @set: mode parameters
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*
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* This function is the device-specific portion of the DRM CRTC mode set.
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* For the SVGA device, we do this by defining a Screen Target, binding a
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* GB Surface to that target, and finally update the screen target.
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*
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* RETURNS:
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* 0 on success, error code otherwise
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*/
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static int vmw_stdu_crtc_set_config(struct drm_mode_set *set)
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{
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struct vmw_private *dev_priv;
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struct vmw_screen_target_display_unit *stdu;
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struct vmw_framebuffer *vfb;
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struct vmw_framebuffer_surface *new_vfbs;
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struct drm_display_mode *mode;
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struct drm_framebuffer *new_fb;
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struct drm_crtc *crtc;
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struct drm_encoder *encoder;
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struct drm_connector *connector;
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int ret;
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if (!set || !set->crtc)
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return -EINVAL;
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crtc = set->crtc;
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crtc->x = set->x;
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crtc->y = set->y;
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stdu = vmw_crtc_to_stdu(crtc);
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mode = set->mode;
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new_fb = set->fb;
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dev_priv = vmw_priv(crtc->dev);
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if (set->num_connectors > 1) {
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DRM_ERROR("Too many connectors\n");
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return -EINVAL;
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}
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if (set->num_connectors == 1 &&
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set->connectors[0] != &stdu->base.connector) {
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DRM_ERROR("Connectors don't match %p %p\n",
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set->connectors[0], &stdu->base.connector);
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return -EINVAL;
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}
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/* Since they always map one to one these are safe */
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connector = &stdu->base.connector;
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encoder = &stdu->base.encoder;
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/*
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* After this point the CRTC will be considered off unless a new fb
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* is bound
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*/
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if (stdu->defined) {
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/* Unbind current surface by binding an invalid one */
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ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
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if (unlikely(ret != 0))
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return ret;
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/* Update Screen Target, display will now be blank */
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if (crtc->primary->fb) {
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vmw_stdu_update_st(dev_priv, stdu);
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if (unlikely(ret != 0))
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return ret;
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}
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crtc->primary->fb = NULL;
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crtc->enabled = false;
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encoder->crtc = NULL;
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connector->encoder = NULL;
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vmw_stdu_unpin_display(stdu);
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stdu->content_fb = NULL;
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stdu->content_fb_type = SAME_AS_DISPLAY;
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ret = vmw_stdu_destroy_st(dev_priv, stdu);
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/* The hardware is hung, give up */
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if (unlikely(ret != 0))
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return ret;
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}
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/* Any of these conditions means the caller wants CRTC off */
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if (set->num_connectors == 0 || !mode || !new_fb)
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return 0;
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if (set->x + mode->hdisplay > new_fb->width ||
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set->y + mode->vdisplay > new_fb->height) {
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DRM_ERROR("Set outside of framebuffer\n");
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return -EINVAL;
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}
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stdu->content_fb = new_fb;
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vfb = vmw_framebuffer_to_vfb(stdu->content_fb);
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if (vfb->dmabuf)
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stdu->content_fb_type = SEPARATE_DMA;
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/*
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* If the requested mode is different than the width and height
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* of the FB or if the content buffer is a DMA buf, then allocate
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* a display FB that matches the dimension of the mode
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*/
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if (mode->hdisplay != new_fb->width ||
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mode->vdisplay != new_fb->height ||
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stdu->content_fb_type != SAME_AS_DISPLAY) {
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struct vmw_surface content_srf;
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struct drm_vmw_size display_base_size = {0};
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struct vmw_surface *display_srf;
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display_base_size.width = mode->hdisplay;
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display_base_size.height = mode->vdisplay;
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display_base_size.depth = 1;
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/*
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* If content buffer is a DMA buf, then we have to construct
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* surface info
|
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*/
|
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if (stdu->content_fb_type == SEPARATE_DMA) {
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switch (new_fb->bits_per_pixel) {
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case 32:
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content_srf.format = SVGA3D_X8R8G8B8;
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break;
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case 16:
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content_srf.format = SVGA3D_R5G6B5;
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break;
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case 8:
|
|
content_srf.format = SVGA3D_P8;
|
|
break;
|
|
|
|
default:
|
|
DRM_ERROR("Invalid format\n");
|
|
ret = -EINVAL;
|
|
goto err_unref_content;
|
|
}
|
|
|
|
content_srf.flags = 0;
|
|
content_srf.mip_levels[0] = 1;
|
|
content_srf.multisample_count = 0;
|
|
} else {
|
|
|
|
stdu->content_fb_type = SEPARATE_SURFACE;
|
|
|
|
new_vfbs = vmw_framebuffer_to_vfbs(new_fb);
|
|
content_srf = *new_vfbs->surface;
|
|
}
|
|
|
|
|
|
ret = vmw_surface_gb_priv_define(crtc->dev,
|
|
0, /* because kernel visible only */
|
|
content_srf.flags,
|
|
content_srf.format,
|
|
true, /* a scanout buffer */
|
|
content_srf.mip_levels[0],
|
|
content_srf.multisample_count,
|
|
0,
|
|
display_base_size,
|
|
&display_srf);
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("Cannot allocate a display FB.\n");
|
|
goto err_unref_content;
|
|
}
|
|
|
|
stdu->display_srf = display_srf;
|
|
} else {
|
|
new_vfbs = vmw_framebuffer_to_vfbs(new_fb);
|
|
stdu->display_srf = new_vfbs->surface;
|
|
}
|
|
|
|
|
|
ret = vmw_stdu_pin_display(stdu);
|
|
if (unlikely(ret != 0)) {
|
|
stdu->display_srf = NULL;
|
|
goto err_unref_content;
|
|
}
|
|
|
|
vmw_svga_enable(dev_priv);
|
|
|
|
/*
|
|
* Steps to displaying a surface, assume surface is already
|
|
* bound:
|
|
* 1. define a screen target
|
|
* 2. bind a fb to the screen target
|
|
* 3. update that screen target (this is done later by
|
|
* vmw_kms_stdu_do_surface_dirty_or_present)
|
|
*/
|
|
ret = vmw_stdu_define_st(dev_priv, stdu);
|
|
if (unlikely(ret != 0))
|
|
goto err_unpin_display_and_content;
|
|
|
|
ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
|
|
if (unlikely(ret != 0))
|
|
goto err_unpin_destroy_st;
|
|
|
|
|
|
connector->encoder = encoder;
|
|
encoder->crtc = crtc;
|
|
|
|
crtc->mode = *mode;
|
|
crtc->primary->fb = new_fb;
|
|
crtc->enabled = true;
|
|
|
|
return ret;
|
|
|
|
err_unpin_destroy_st:
|
|
vmw_stdu_destroy_st(dev_priv, stdu);
|
|
err_unpin_display_and_content:
|
|
vmw_stdu_unpin_display(stdu);
|
|
err_unref_content:
|
|
stdu->content_fb = NULL;
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* vmw_stdu_crtc_page_flip - Binds a buffer to a screen target
|
|
*
|
|
* @crtc: CRTC to attach FB to
|
|
* @fb: FB to attach
|
|
* @event: Event to be posted. This event should've been alloced
|
|
* using k[mz]alloc, and should've been completely initialized.
|
|
* @page_flip_flags: Input flags.
|
|
*
|
|
* If the STDU uses the same display and content buffers, i.e. a true flip,
|
|
* this function will replace the existing display buffer with the new content
|
|
* buffer.
|
|
*
|
|
* If the STDU uses different display and content buffers, i.e. a blit, then
|
|
* only the content buffer will be updated.
|
|
*
|
|
* RETURNS:
|
|
* 0 on success, error code on failure
|
|
*/
|
|
static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
|
|
struct drm_framebuffer *new_fb,
|
|
struct drm_pending_vblank_event *event,
|
|
uint32_t flags)
|
|
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
|
|
struct vmw_screen_target_display_unit *stdu;
|
|
int ret;
|
|
|
|
if (crtc == NULL)
|
|
return -EINVAL;
|
|
|
|
dev_priv = vmw_priv(crtc->dev);
|
|
stdu = vmw_crtc_to_stdu(crtc);
|
|
crtc->primary->fb = new_fb;
|
|
stdu->content_fb = new_fb;
|
|
|
|
if (stdu->display_srf) {
|
|
/*
|
|
* If the display surface is the same as the content surface
|
|
* then remove the reference
|
|
*/
|
|
if (stdu->content_fb_type == SAME_AS_DISPLAY) {
|
|
if (stdu->defined) {
|
|
/* Unbind the current surface */
|
|
ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
|
|
if (unlikely(ret != 0))
|
|
goto err_out;
|
|
}
|
|
vmw_stdu_unpin_display(stdu);
|
|
stdu->display_srf = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
if (!new_fb) {
|
|
/* Blanks the display */
|
|
(void) vmw_stdu_update_st(dev_priv, stdu);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
if (stdu->content_fb_type == SAME_AS_DISPLAY) {
|
|
stdu->display_srf = vmw_framebuffer_to_vfbs(new_fb)->surface;
|
|
ret = vmw_stdu_pin_display(stdu);
|
|
if (ret) {
|
|
stdu->display_srf = NULL;
|
|
goto err_out;
|
|
}
|
|
|
|
/* Bind display surface */
|
|
ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
|
|
if (unlikely(ret != 0))
|
|
goto err_unpin_display_and_content;
|
|
}
|
|
|
|
/* Update display surface: after this point everything is bound */
|
|
ret = vmw_stdu_update_st(dev_priv, stdu);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
if (event) {
|
|
struct vmw_fence_obj *fence = NULL;
|
|
struct drm_file *file_priv = event->base.file_priv;
|
|
|
|
vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
|
|
if (!fence)
|
|
return -ENOMEM;
|
|
|
|
ret = vmw_event_fence_action_queue(file_priv, fence,
|
|
&event->base,
|
|
&event->event.tv_sec,
|
|
&event->event.tv_usec,
|
|
true);
|
|
vmw_fence_obj_unreference(&fence);
|
|
} else {
|
|
vmw_fifo_flush(dev_priv, false);
|
|
}
|
|
|
|
return ret;
|
|
|
|
err_unpin_display_and_content:
|
|
vmw_stdu_unpin_display(stdu);
|
|
err_out:
|
|
crtc->primary->fb = NULL;
|
|
stdu->content_fb = NULL;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* vmw_stdu_dmabuf_clip - Callback to encode a suface DMA command cliprect
|
|
*
|
|
* @dirty: The closure structure.
|
|
*
|
|
* Encodes a surface DMA command cliprect and updates the bounding box
|
|
* for the DMA.
|
|
*/
|
|
static void vmw_stdu_dmabuf_clip(struct vmw_kms_dirty *dirty)
|
|
{
|
|
struct vmw_stdu_dirty *ddirty =
|
|
container_of(dirty, struct vmw_stdu_dirty, base);
|
|
struct vmw_stdu_dma *cmd = dirty->cmd;
|
|
struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
|
|
|
|
blit += dirty->num_hits;
|
|
blit->srcx = dirty->fb_x;
|
|
blit->srcy = dirty->fb_y;
|
|
blit->x = dirty->unit_x1;
|
|
blit->y = dirty->unit_y1;
|
|
blit->d = 1;
|
|
blit->w = dirty->unit_x2 - dirty->unit_x1;
|
|
blit->h = dirty->unit_y2 - dirty->unit_y1;
|
|
dirty->num_hits++;
|
|
|
|
if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM)
|
|
return;
|
|
|
|
/* Destination bounding box */
|
|
ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
|
|
ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
|
|
ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
|
|
ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
|
|
}
|
|
|
|
/**
|
|
* vmw_stdu_dmabuf_fifo_commit - Callback to fill in and submit a DMA command.
|
|
*
|
|
* @dirty: The closure structure.
|
|
*
|
|
* Fills in the missing fields in a DMA command, and optionally encodes
|
|
* a screen target update command, depending on transfer direction.
|
|
*/
|
|
static void vmw_stdu_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty)
|
|
{
|
|
struct vmw_stdu_dirty *ddirty =
|
|
container_of(dirty, struct vmw_stdu_dirty, base);
|
|
struct vmw_screen_target_display_unit *stdu =
|
|
container_of(dirty->unit, typeof(*stdu), base);
|
|
struct vmw_stdu_dma *cmd = dirty->cmd;
|
|
struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
|
|
SVGA3dCmdSurfaceDMASuffix *suffix =
|
|
(SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits];
|
|
size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix);
|
|
|
|
if (!dirty->num_hits) {
|
|
vmw_fifo_commit(dirty->dev_priv, 0);
|
|
return;
|
|
}
|
|
|
|
cmd->header.id = SVGA_3D_CMD_SURFACE_DMA;
|
|
cmd->header.size = sizeof(cmd->body) + blit_size;
|
|
vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr);
|
|
cmd->body.guest.pitch = ddirty->pitch;
|
|
cmd->body.host.sid = stdu->display_srf->res.id;
|
|
cmd->body.host.face = 0;
|
|
cmd->body.host.mipmap = 0;
|
|
cmd->body.transfer = ddirty->transfer;
|
|
suffix->suffixSize = sizeof(*suffix);
|
|
suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE;
|
|
|
|
if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) {
|
|
blit_size += sizeof(struct vmw_stdu_update);
|
|
|
|
vmw_stdu_populate_update(&suffix[1], stdu->base.unit,
|
|
ddirty->left, ddirty->right,
|
|
ddirty->top, ddirty->bottom);
|
|
}
|
|
|
|
vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size);
|
|
|
|
ddirty->left = ddirty->top = S32_MAX;
|
|
ddirty->right = ddirty->bottom = S32_MIN;
|
|
}
|
|
|
|
/**
|
|
* vmw_kms_stdu_dma - Perform a DMA transfer between a dma-buffer backed
|
|
* framebuffer and the screen target system.
|
|
*
|
|
* @dev_priv: Pointer to the device private structure.
|
|
* @file_priv: Pointer to a struct drm-file identifying the caller. May be
|
|
* set to NULL, but then @user_fence_rep must also be set to NULL.
|
|
* @vfb: Pointer to the dma-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.
|
|
* @num_clips: Number of clip rects in @clips or @vclips.
|
|
* @increment: Increment to use when looping over @clips or @vclips.
|
|
* @to_surface: Whether to DMA to the screen target system as opposed to
|
|
* from the screen target system.
|
|
* @interruptible: Whether to perform waits interruptible if possible.
|
|
*
|
|
* If DMA-ing till the screen target system, the function will also notify
|
|
* the screen target system that a bounding box of the cliprects has been
|
|
* updated.
|
|
* Returns 0 on success, negative error code on failure. -ERESTARTSYS if
|
|
* interrupted.
|
|
*/
|
|
int vmw_kms_stdu_dma(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_clip_rect *clips,
|
|
struct drm_vmw_rect *vclips,
|
|
uint32_t num_clips,
|
|
int increment,
|
|
bool to_surface,
|
|
bool interruptible)
|
|
{
|
|
struct vmw_dma_buffer *buf =
|
|
container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer;
|
|
struct vmw_stdu_dirty ddirty;
|
|
int ret;
|
|
|
|
ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible,
|
|
false);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM :
|
|
SVGA3D_READ_HOST_VRAM;
|
|
ddirty.left = ddirty.top = S32_MAX;
|
|
ddirty.right = ddirty.bottom = S32_MIN;
|
|
ddirty.pitch = vfb->base.pitches[0];
|
|
ddirty.buf = buf;
|
|
ddirty.base.fifo_commit = vmw_stdu_dmabuf_fifo_commit;
|
|
ddirty.base.clip = vmw_stdu_dmabuf_clip;
|
|
ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) +
|
|
num_clips * sizeof(SVGA3dCopyBox) +
|
|
sizeof(SVGA3dCmdSurfaceDMASuffix);
|
|
if (to_surface)
|
|
ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update);
|
|
|
|
ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips,
|
|
0, 0, num_clips, increment, &ddirty.base);
|
|
vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL,
|
|
user_fence_rep);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect
|
|
*
|
|
* @dirty: The closure structure.
|
|
*
|
|
* Encodes a surface copy command cliprect and updates the bounding box
|
|
* for the copy.
|
|
*/
|
|
static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty)
|
|
{
|
|
struct vmw_stdu_dirty *sdirty =
|
|
container_of(dirty, struct vmw_stdu_dirty, base);
|
|
struct vmw_stdu_surface_copy *cmd = dirty->cmd;
|
|
struct vmw_screen_target_display_unit *stdu =
|
|
container_of(dirty->unit, typeof(*stdu), base);
|
|
|
|
if (sdirty->sid != stdu->display_srf->res.id) {
|
|
struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
|
|
|
|
blit += dirty->num_hits;
|
|
blit->srcx = dirty->fb_x;
|
|
blit->srcy = dirty->fb_y;
|
|
blit->x = dirty->unit_x1;
|
|
blit->y = dirty->unit_y1;
|
|
blit->d = 1;
|
|
blit->w = dirty->unit_x2 - dirty->unit_x1;
|
|
blit->h = dirty->unit_y2 - dirty->unit_y1;
|
|
}
|
|
|
|
dirty->num_hits++;
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/**
|
|
* vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface
|
|
* copy command.
|
|
*
|
|
* @dirty: The closure structure.
|
|
*
|
|
* Fills in the missing fields in a surface copy command, and encodes a screen
|
|
* target update command.
|
|
*/
|
|
static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty)
|
|
{
|
|
struct vmw_stdu_dirty *sdirty =
|
|
container_of(dirty, struct vmw_stdu_dirty, base);
|
|
struct vmw_screen_target_display_unit *stdu =
|
|
container_of(dirty->unit, typeof(*stdu), base);
|
|
struct vmw_stdu_surface_copy *cmd = dirty->cmd;
|
|
struct vmw_stdu_update *update;
|
|
size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits;
|
|
size_t commit_size;
|
|
|
|
if (!dirty->num_hits) {
|
|
vmw_fifo_commit(dirty->dev_priv, 0);
|
|
return;
|
|
}
|
|
|
|
if (sdirty->sid != stdu->display_srf->res.id) {
|
|
struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
|
|
|
|
cmd->header.id = SVGA_3D_CMD_SURFACE_COPY;
|
|
cmd->header.size = sizeof(cmd->body) + blit_size;
|
|
cmd->body.src.sid = sdirty->sid;
|
|
cmd->body.dest.sid = stdu->display_srf->res.id;
|
|
update = (struct vmw_stdu_update *) &blit[dirty->num_hits];
|
|
commit_size = sizeof(*cmd) + blit_size + sizeof(*update);
|
|
} else {
|
|
update = dirty->cmd;
|
|
commit_size = sizeof(*update);
|
|
}
|
|
|
|
vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left,
|
|
sdirty->right, sdirty->top, sdirty->bottom);
|
|
|
|
vmw_fifo_commit(dirty->dev_priv, commit_size);
|
|
|
|
sdirty->left = sdirty->top = S32_MAX;
|
|
sdirty->right = sdirty->bottom = S32_MIN;
|
|
}
|
|
|
|
/**
|
|
* vmw_kms_stdu_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.
|
|
*
|
|
* Returns 0 on success, negative error code on failure. -ERESTARTSYS if
|
|
* interrupted.
|
|
*/
|
|
int vmw_kms_stdu_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 vmw_framebuffer_surface *vfbs =
|
|
container_of(framebuffer, typeof(*vfbs), base);
|
|
struct vmw_stdu_dirty sdirty;
|
|
int ret;
|
|
|
|
if (!srf)
|
|
srf = &vfbs->surface->res;
|
|
|
|
ret = vmw_kms_helper_resource_prepare(srf, true);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (vfbs->is_dmabuf_proxy) {
|
|
ret = vmw_kms_update_proxy(srf, clips, num_clips, inc);
|
|
if (ret)
|
|
goto out_finish;
|
|
}
|
|
|
|
sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit;
|
|
sdirty.base.clip = vmw_kms_stdu_surface_clip;
|
|
sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) +
|
|
sizeof(SVGA3dCopyBox) * num_clips +
|
|
sizeof(struct vmw_stdu_update);
|
|
sdirty.sid = srf->id;
|
|
sdirty.left = sdirty.top = S32_MAX;
|
|
sdirty.right = sdirty.bottom = S32_MIN;
|
|
|
|
ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
|
|
dest_x, dest_y, num_clips, inc,
|
|
&sdirty.base);
|
|
out_finish:
|
|
vmw_kms_helper_resource_finish(srf, out_fence);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Screen Target CRTC dispatch table
|
|
*/
|
|
static struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
|
|
.save = vmw_du_crtc_save,
|
|
.restore = vmw_du_crtc_restore,
|
|
// .cursor_set2 = vmw_du_crtc_cursor_set2,
|
|
// .cursor_move = vmw_du_crtc_cursor_move,
|
|
.gamma_set = vmw_du_crtc_gamma_set,
|
|
.destroy = vmw_stdu_crtc_destroy,
|
|
.set_config = vmw_stdu_crtc_set_config,
|
|
.page_flip = vmw_stdu_crtc_page_flip,
|
|
};
|
|
|
|
|
|
|
|
/******************************************************************************
|
|
* Screen Target Display Unit Encoder Functions
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* vmw_stdu_encoder_destroy - cleans up the STDU
|
|
*
|
|
* @encoder: used the get the containing STDU
|
|
*
|
|
* vmwgfx cleans up crtc/encoder/connector all at the same time so technically
|
|
* this can be a no-op. Nevertheless, it doesn't hurt of have this in case
|
|
* the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
|
|
* get called.
|
|
*/
|
|
static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder)
|
|
{
|
|
vmw_stdu_destroy(vmw_encoder_to_stdu(encoder));
|
|
}
|
|
|
|
static struct drm_encoder_funcs vmw_stdu_encoder_funcs = {
|
|
.destroy = vmw_stdu_encoder_destroy,
|
|
};
|
|
|
|
|
|
|
|
/******************************************************************************
|
|
* Screen Target Display Unit Connector Functions
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* vmw_stdu_connector_destroy - cleans up the STDU
|
|
*
|
|
* @connector: used to get the containing STDU
|
|
*
|
|
* vmwgfx cleans up crtc/encoder/connector all at the same time so technically
|
|
* this can be a no-op. Nevertheless, it doesn't hurt of have this in case
|
|
* the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
|
|
* get called.
|
|
*/
|
|
static void vmw_stdu_connector_destroy(struct drm_connector *connector)
|
|
{
|
|
vmw_stdu_destroy(vmw_connector_to_stdu(connector));
|
|
}
|
|
|
|
|
|
|
|
static struct drm_connector_funcs vmw_stdu_connector_funcs = {
|
|
.dpms = vmw_du_connector_dpms,
|
|
.save = vmw_du_connector_save,
|
|
.restore = vmw_du_connector_restore,
|
|
.detect = vmw_du_connector_detect,
|
|
.fill_modes = vmw_du_connector_fill_modes,
|
|
.set_property = vmw_du_connector_set_property,
|
|
.destroy = vmw_stdu_connector_destroy,
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* vmw_stdu_init - Sets up a Screen Target Display Unit
|
|
*
|
|
* @dev_priv: VMW DRM device
|
|
* @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS
|
|
*
|
|
* This function is called once per CRTC, and allocates one Screen Target
|
|
* display unit to represent that CRTC. Since the SVGA device does not separate
|
|
* out encoder and connector, they are represented as part of the STDU as well.
|
|
*/
|
|
static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
|
|
{
|
|
struct vmw_screen_target_display_unit *stdu;
|
|
struct drm_device *dev = dev_priv->dev;
|
|
struct drm_connector *connector;
|
|
struct drm_encoder *encoder;
|
|
struct drm_crtc *crtc;
|
|
|
|
|
|
stdu = kzalloc(sizeof(*stdu), GFP_KERNEL);
|
|
if (!stdu)
|
|
return -ENOMEM;
|
|
|
|
stdu->base.unit = unit;
|
|
crtc = &stdu->base.crtc;
|
|
encoder = &stdu->base.encoder;
|
|
connector = &stdu->base.connector;
|
|
|
|
stdu->base.pref_active = (unit == 0);
|
|
stdu->base.pref_width = dev_priv->initial_width;
|
|
stdu->base.pref_height = dev_priv->initial_height;
|
|
stdu->base.is_implicit = true;
|
|
|
|
drm_connector_init(dev, connector, &vmw_stdu_connector_funcs,
|
|
DRM_MODE_CONNECTOR_VIRTUAL);
|
|
connector->status = vmw_du_connector_detect(connector, false);
|
|
|
|
drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs,
|
|
DRM_MODE_ENCODER_VIRTUAL);
|
|
drm_mode_connector_attach_encoder(connector, encoder);
|
|
encoder->possible_crtcs = (1 << unit);
|
|
encoder->possible_clones = 0;
|
|
|
|
(void) drm_connector_register(connector);
|
|
|
|
drm_crtc_init(dev, crtc, &vmw_stdu_crtc_funcs);
|
|
|
|
drm_mode_crtc_set_gamma_size(crtc, 256);
|
|
|
|
drm_object_attach_property(&connector->base,
|
|
dev->mode_config.dirty_info_property,
|
|
1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit
|
|
*
|
|
* @stdu: Screen Target Display Unit to be destroyed
|
|
*
|
|
* Clean up after vmw_stdu_init
|
|
*/
|
|
static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
|
|
{
|
|
vmw_stdu_unpin_display(stdu);
|
|
|
|
vmw_du_cleanup(&stdu->base);
|
|
kfree(stdu);
|
|
}
|
|
|
|
|
|
|
|
/******************************************************************************
|
|
* Screen Target Display KMS Functions
|
|
*
|
|
* These functions are called by the common KMS code in vmwgfx_kms.c
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* vmw_kms_stdu_init_display - Initializes a Screen Target based display
|
|
*
|
|
* @dev_priv: VMW DRM device
|
|
*
|
|
* This function initialize a Screen Target based display device. It checks
|
|
* the capability bits to make sure the underlying hardware can support
|
|
* screen targets, and then creates the maximum number of CRTCs, a.k.a Display
|
|
* Units, as supported by the display hardware.
|
|
*
|
|
* RETURNS:
|
|
* 0 on success, error code otherwise
|
|
*/
|
|
int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
|
|
{
|
|
struct drm_device *dev = dev_priv->dev;
|
|
int i, ret;
|
|
|
|
|
|
/* Do nothing if Screen Target support is turned off */
|
|
if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE)
|
|
return -ENOSYS;
|
|
|
|
if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
|
|
return -ENOSYS;
|
|
|
|
ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
ret = drm_mode_create_dirty_info_property(dev);
|
|
if (unlikely(ret != 0))
|
|
goto err_vblank_cleanup;
|
|
|
|
dev_priv->active_display_unit = vmw_du_screen_target;
|
|
|
|
for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
|
|
ret = vmw_stdu_init(dev_priv, i);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("Failed to initialize STDU %d", i);
|
|
goto err_vblank_cleanup;
|
|
}
|
|
}
|
|
|
|
DRM_INFO("Screen Target Display device initialized\n");
|
|
|
|
return 0;
|
|
|
|
err_vblank_cleanup:
|
|
drm_vblank_cleanup(dev);
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* vmw_kms_stdu_close_display - Cleans up after vmw_kms_stdu_init_display
|
|
*
|
|
* @dev_priv: VMW DRM device
|
|
*
|
|
* Frees up any resources allocated by vmw_kms_stdu_init_display
|
|
*
|
|
* RETURNS:
|
|
* 0 on success
|
|
*/
|
|
int vmw_kms_stdu_close_display(struct vmw_private *dev_priv)
|
|
{
|
|
struct drm_device *dev = dev_priv->dev;
|
|
|
|
drm_vblank_cleanup(dev);
|
|
|
|
return 0;
|
|
}
|