mirror of https://gitee.com/openkylin/linux.git
1596 lines
44 KiB
C
1596 lines
44 KiB
C
/**************************************************************************
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*
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* Copyright © 2009-2015 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 <drm/ttm/ttm_placement.h>
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#include "vmwgfx_drv.h"
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#include "vmwgfx_resource_priv.h"
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#include "vmwgfx_so.h"
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#include "vmwgfx_binding.h"
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#include "device_include/svga3d_surfacedefs.h"
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/**
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* struct vmw_user_surface - User-space visible surface resource
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*
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* @base: The TTM base object handling user-space visibility.
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* @srf: The surface metadata.
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* @size: TTM accounting size for the surface.
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* @master: master of the creating client. Used for security check.
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*/
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struct vmw_user_surface {
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struct ttm_prime_object prime;
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struct vmw_surface srf;
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uint32_t size;
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struct drm_master *master;
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struct ttm_base_object *backup_base;
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};
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/**
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* struct vmw_surface_offset - Backing store mip level offset info
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*
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* @face: Surface face.
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* @mip: Mip level.
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* @bo_offset: Offset into backing store of this mip level.
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*
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*/
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struct vmw_surface_offset {
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uint32_t face;
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uint32_t mip;
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uint32_t bo_offset;
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};
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static void vmw_user_surface_free(struct vmw_resource *res);
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static struct vmw_resource *
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vmw_user_surface_base_to_res(struct ttm_base_object *base);
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static int vmw_legacy_srf_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf);
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static int vmw_legacy_srf_unbind(struct vmw_resource *res,
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bool readback,
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struct ttm_validate_buffer *val_buf);
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static int vmw_legacy_srf_create(struct vmw_resource *res);
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static int vmw_legacy_srf_destroy(struct vmw_resource *res);
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static int vmw_gb_surface_create(struct vmw_resource *res);
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static int vmw_gb_surface_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf);
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static int vmw_gb_surface_unbind(struct vmw_resource *res,
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bool readback,
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struct ttm_validate_buffer *val_buf);
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static int vmw_gb_surface_destroy(struct vmw_resource *res);
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static const struct vmw_user_resource_conv user_surface_conv = {
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.object_type = VMW_RES_SURFACE,
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.base_obj_to_res = vmw_user_surface_base_to_res,
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.res_free = vmw_user_surface_free
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};
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const struct vmw_user_resource_conv *user_surface_converter =
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&user_surface_conv;
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static uint64_t vmw_user_surface_size;
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static const struct vmw_res_func vmw_legacy_surface_func = {
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.res_type = vmw_res_surface,
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.needs_backup = false,
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.may_evict = true,
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.type_name = "legacy surfaces",
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.backup_placement = &vmw_srf_placement,
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.create = &vmw_legacy_srf_create,
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.destroy = &vmw_legacy_srf_destroy,
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.bind = &vmw_legacy_srf_bind,
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.unbind = &vmw_legacy_srf_unbind
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};
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static const struct vmw_res_func vmw_gb_surface_func = {
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.res_type = vmw_res_surface,
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.needs_backup = true,
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.may_evict = true,
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.type_name = "guest backed surfaces",
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.backup_placement = &vmw_mob_placement,
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.create = vmw_gb_surface_create,
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.destroy = vmw_gb_surface_destroy,
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.bind = vmw_gb_surface_bind,
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.unbind = vmw_gb_surface_unbind
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};
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/**
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* struct vmw_surface_dma - SVGA3D DMA command
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*/
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struct vmw_surface_dma {
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SVGA3dCmdHeader header;
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SVGA3dCmdSurfaceDMA body;
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SVGA3dCopyBox cb;
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SVGA3dCmdSurfaceDMASuffix suffix;
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};
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/**
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* struct vmw_surface_define - SVGA3D Surface Define command
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*/
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struct vmw_surface_define {
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SVGA3dCmdHeader header;
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SVGA3dCmdDefineSurface body;
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};
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/**
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* struct vmw_surface_destroy - SVGA3D Surface Destroy command
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*/
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struct vmw_surface_destroy {
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SVGA3dCmdHeader header;
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SVGA3dCmdDestroySurface body;
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};
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/**
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* vmw_surface_dma_size - Compute fifo size for a dma command.
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*
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* @srf: Pointer to a struct vmw_surface
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*
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* Computes the required size for a surface dma command for backup or
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* restoration of the surface represented by @srf.
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*/
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static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf)
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{
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return srf->num_sizes * sizeof(struct vmw_surface_dma);
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}
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/**
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* vmw_surface_define_size - Compute fifo size for a surface define command.
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*
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* @srf: Pointer to a struct vmw_surface
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*
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* Computes the required size for a surface define command for the definition
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* of the surface represented by @srf.
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*/
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static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf)
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{
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return sizeof(struct vmw_surface_define) + srf->num_sizes *
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sizeof(SVGA3dSize);
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}
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/**
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* vmw_surface_destroy_size - Compute fifo size for a surface destroy command.
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*
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* Computes the required size for a surface destroy command for the destruction
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* of a hw surface.
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*/
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static inline uint32_t vmw_surface_destroy_size(void)
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{
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return sizeof(struct vmw_surface_destroy);
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}
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/**
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* vmw_surface_destroy_encode - Encode a surface_destroy command.
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*
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* @id: The surface id
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* @cmd_space: Pointer to memory area in which the commands should be encoded.
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*/
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static void vmw_surface_destroy_encode(uint32_t id,
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void *cmd_space)
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{
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struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *)
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cmd_space;
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cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.sid = id;
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}
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/**
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* vmw_surface_define_encode - Encode a surface_define command.
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*
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* @srf: Pointer to a struct vmw_surface object.
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* @cmd_space: Pointer to memory area in which the commands should be encoded.
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*/
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static void vmw_surface_define_encode(const struct vmw_surface *srf,
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void *cmd_space)
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{
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struct vmw_surface_define *cmd = (struct vmw_surface_define *)
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cmd_space;
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struct drm_vmw_size *src_size;
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SVGA3dSize *cmd_size;
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uint32_t cmd_len;
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int i;
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cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize);
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cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
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cmd->header.size = cmd_len;
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cmd->body.sid = srf->res.id;
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cmd->body.surfaceFlags = srf->flags;
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cmd->body.format = srf->format;
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for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
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cmd->body.face[i].numMipLevels = srf->mip_levels[i];
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cmd += 1;
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cmd_size = (SVGA3dSize *) cmd;
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src_size = srf->sizes;
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for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) {
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cmd_size->width = src_size->width;
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cmd_size->height = src_size->height;
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cmd_size->depth = src_size->depth;
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}
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}
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/**
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* vmw_surface_dma_encode - Encode a surface_dma command.
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*
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* @srf: Pointer to a struct vmw_surface object.
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* @cmd_space: Pointer to memory area in which the commands should be encoded.
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* @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents
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* should be placed or read from.
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* @to_surface: Boolean whether to DMA to the surface or from the surface.
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*/
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static void vmw_surface_dma_encode(struct vmw_surface *srf,
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void *cmd_space,
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const SVGAGuestPtr *ptr,
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bool to_surface)
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{
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uint32_t i;
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struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
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const struct svga3d_surface_desc *desc =
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svga3dsurface_get_desc(srf->format);
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for (i = 0; i < srf->num_sizes; ++i) {
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SVGA3dCmdHeader *header = &cmd->header;
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SVGA3dCmdSurfaceDMA *body = &cmd->body;
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SVGA3dCopyBox *cb = &cmd->cb;
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SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix;
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const struct vmw_surface_offset *cur_offset = &srf->offsets[i];
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const struct drm_vmw_size *cur_size = &srf->sizes[i];
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header->id = SVGA_3D_CMD_SURFACE_DMA;
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header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix);
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body->guest.ptr = *ptr;
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body->guest.ptr.offset += cur_offset->bo_offset;
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body->guest.pitch = svga3dsurface_calculate_pitch(desc,
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cur_size);
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body->host.sid = srf->res.id;
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body->host.face = cur_offset->face;
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body->host.mipmap = cur_offset->mip;
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body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM :
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SVGA3D_READ_HOST_VRAM);
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cb->x = 0;
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cb->y = 0;
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cb->z = 0;
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cb->srcx = 0;
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cb->srcy = 0;
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cb->srcz = 0;
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cb->w = cur_size->width;
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cb->h = cur_size->height;
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cb->d = cur_size->depth;
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suffix->suffixSize = sizeof(*suffix);
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suffix->maximumOffset =
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svga3dsurface_get_image_buffer_size(desc, cur_size,
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body->guest.pitch);
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suffix->flags.discard = 0;
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suffix->flags.unsynchronized = 0;
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suffix->flags.reserved = 0;
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++cmd;
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}
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};
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/**
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* vmw_hw_surface_destroy - destroy a Device surface
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*
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* @res: Pointer to a struct vmw_resource embedded in a struct
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* vmw_surface.
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*
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* Destroys a the device surface associated with a struct vmw_surface if
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* any, and adjusts accounting and resource count accordingly.
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*/
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static void vmw_hw_surface_destroy(struct vmw_resource *res)
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{
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struct vmw_private *dev_priv = res->dev_priv;
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struct vmw_surface *srf;
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void *cmd;
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if (res->func->destroy == vmw_gb_surface_destroy) {
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(void) vmw_gb_surface_destroy(res);
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return;
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}
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if (res->id != -1) {
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cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size());
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if (unlikely(!cmd)) {
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DRM_ERROR("Failed reserving FIFO space for surface "
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"destruction.\n");
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return;
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}
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vmw_surface_destroy_encode(res->id, cmd);
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vmw_fifo_commit(dev_priv, vmw_surface_destroy_size());
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/*
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* used_memory_size_atomic, or separate lock
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* to avoid taking dev_priv::cmdbuf_mutex in
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* the destroy path.
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*/
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mutex_lock(&dev_priv->cmdbuf_mutex);
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srf = vmw_res_to_srf(res);
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dev_priv->used_memory_size -= res->backup_size;
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mutex_unlock(&dev_priv->cmdbuf_mutex);
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}
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vmw_fifo_resource_dec(dev_priv);
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}
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/**
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* vmw_legacy_srf_create - Create a device surface as part of the
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* resource validation process.
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*
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* @res: Pointer to a struct vmw_surface.
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*
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* If the surface doesn't have a hw id.
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*
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* Returns -EBUSY if there wasn't sufficient device resources to
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* complete the validation. Retry after freeing up resources.
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*
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* May return other errors if the kernel is out of guest resources.
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*/
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static int vmw_legacy_srf_create(struct vmw_resource *res)
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{
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struct vmw_private *dev_priv = res->dev_priv;
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struct vmw_surface *srf;
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uint32_t submit_size;
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uint8_t *cmd;
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int ret;
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if (likely(res->id != -1))
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return 0;
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srf = vmw_res_to_srf(res);
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if (unlikely(dev_priv->used_memory_size + res->backup_size >=
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dev_priv->memory_size))
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return -EBUSY;
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/*
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* Alloc id for the resource.
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*/
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ret = vmw_resource_alloc_id(res);
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if (unlikely(ret != 0)) {
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DRM_ERROR("Failed to allocate a surface id.\n");
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goto out_no_id;
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}
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if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) {
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ret = -EBUSY;
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goto out_no_fifo;
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}
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/*
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* Encode surface define- commands.
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*/
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submit_size = vmw_surface_define_size(srf);
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cmd = vmw_fifo_reserve(dev_priv, submit_size);
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if (unlikely(!cmd)) {
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DRM_ERROR("Failed reserving FIFO space for surface "
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"creation.\n");
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ret = -ENOMEM;
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goto out_no_fifo;
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}
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vmw_surface_define_encode(srf, cmd);
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vmw_fifo_commit(dev_priv, submit_size);
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/*
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* Surface memory usage accounting.
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*/
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dev_priv->used_memory_size += res->backup_size;
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return 0;
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out_no_fifo:
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vmw_resource_release_id(res);
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out_no_id:
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return ret;
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}
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/**
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* vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
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*
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* @res: Pointer to a struct vmw_res embedded in a struct
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* vmw_surface.
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* @val_buf: Pointer to a struct ttm_validate_buffer containing
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* information about the backup buffer.
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* @bind: Boolean wether to DMA to the surface.
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*
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* Transfer backup data to or from a legacy surface as part of the
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* validation process.
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* May return other errors if the kernel is out of guest resources.
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* The backup buffer will be fenced or idle upon successful completion,
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* and if the surface needs persistent backup storage, the backup buffer
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* will also be returned reserved iff @bind is true.
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*/
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static int vmw_legacy_srf_dma(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf,
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bool bind)
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{
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SVGAGuestPtr ptr;
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struct vmw_fence_obj *fence;
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uint32_t submit_size;
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struct vmw_surface *srf = vmw_res_to_srf(res);
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uint8_t *cmd;
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struct vmw_private *dev_priv = res->dev_priv;
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BUG_ON(!val_buf->bo);
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submit_size = vmw_surface_dma_size(srf);
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cmd = vmw_fifo_reserve(dev_priv, submit_size);
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if (unlikely(!cmd)) {
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DRM_ERROR("Failed reserving FIFO space for surface "
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"DMA.\n");
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return -ENOMEM;
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}
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vmw_bo_get_guest_ptr(val_buf->bo, &ptr);
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vmw_surface_dma_encode(srf, cmd, &ptr, bind);
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vmw_fifo_commit(dev_priv, submit_size);
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/*
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* Create a fence object and fence the backup buffer.
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*/
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(void) vmw_execbuf_fence_commands(NULL, dev_priv,
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&fence, NULL);
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vmw_fence_single_bo(val_buf->bo, fence);
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if (likely(fence != NULL))
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vmw_fence_obj_unreference(&fence);
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return 0;
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}
|
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|
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/**
|
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* vmw_legacy_srf_bind - Perform a legacy surface bind as part of the
|
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* surface validation process.
|
|
*
|
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* @res: Pointer to a struct vmw_res embedded in a struct
|
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* vmw_surface.
|
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* @val_buf: Pointer to a struct ttm_validate_buffer containing
|
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* information about the backup buffer.
|
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*
|
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* This function will copy backup data to the surface if the
|
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* backup buffer is dirty.
|
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*/
|
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static int vmw_legacy_srf_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf)
|
|
{
|
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if (!res->backup_dirty)
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return 0;
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return vmw_legacy_srf_dma(res, val_buf, true);
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}
|
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|
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|
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/**
|
|
* vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the
|
|
* surface eviction process.
|
|
*
|
|
* @res: Pointer to a struct vmw_res embedded in a struct
|
|
* vmw_surface.
|
|
* @val_buf: Pointer to a struct ttm_validate_buffer containing
|
|
* information about the backup buffer.
|
|
*
|
|
* This function will copy backup data from the surface.
|
|
*/
|
|
static int vmw_legacy_srf_unbind(struct vmw_resource *res,
|
|
bool readback,
|
|
struct ttm_validate_buffer *val_buf)
|
|
{
|
|
if (unlikely(readback))
|
|
return vmw_legacy_srf_dma(res, val_buf, false);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vmw_legacy_srf_destroy - Destroy a device surface as part of a
|
|
* resource eviction process.
|
|
*
|
|
* @res: Pointer to a struct vmw_res embedded in a struct
|
|
* vmw_surface.
|
|
*/
|
|
static int vmw_legacy_srf_destroy(struct vmw_resource *res)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
uint32_t submit_size;
|
|
uint8_t *cmd;
|
|
|
|
BUG_ON(res->id == -1);
|
|
|
|
/*
|
|
* Encode the dma- and surface destroy commands.
|
|
*/
|
|
|
|
submit_size = vmw_surface_destroy_size();
|
|
cmd = vmw_fifo_reserve(dev_priv, submit_size);
|
|
if (unlikely(!cmd)) {
|
|
DRM_ERROR("Failed reserving FIFO space for surface "
|
|
"eviction.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
vmw_surface_destroy_encode(res->id, cmd);
|
|
vmw_fifo_commit(dev_priv, submit_size);
|
|
|
|
/*
|
|
* Surface memory usage accounting.
|
|
*/
|
|
|
|
dev_priv->used_memory_size -= res->backup_size;
|
|
|
|
/*
|
|
* Release the surface ID.
|
|
*/
|
|
|
|
vmw_resource_release_id(res);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* vmw_surface_init - initialize a struct vmw_surface
|
|
*
|
|
* @dev_priv: Pointer to a device private struct.
|
|
* @srf: Pointer to the struct vmw_surface to initialize.
|
|
* @res_free: Pointer to a resource destructor used to free
|
|
* the object.
|
|
*/
|
|
static int vmw_surface_init(struct vmw_private *dev_priv,
|
|
struct vmw_surface *srf,
|
|
void (*res_free) (struct vmw_resource *res))
|
|
{
|
|
int ret;
|
|
struct vmw_resource *res = &srf->res;
|
|
|
|
BUG_ON(!res_free);
|
|
if (!dev_priv->has_mob)
|
|
vmw_fifo_resource_inc(dev_priv);
|
|
ret = vmw_resource_init(dev_priv, res, true, res_free,
|
|
(dev_priv->has_mob) ? &vmw_gb_surface_func :
|
|
&vmw_legacy_surface_func);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
if (!dev_priv->has_mob)
|
|
vmw_fifo_resource_dec(dev_priv);
|
|
res_free(res);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* The surface won't be visible to hardware until a
|
|
* surface validate.
|
|
*/
|
|
|
|
INIT_LIST_HEAD(&srf->view_list);
|
|
vmw_resource_activate(res, vmw_hw_surface_destroy);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vmw_user_surface_base_to_res - TTM base object to resource converter for
|
|
* user visible surfaces
|
|
*
|
|
* @base: Pointer to a TTM base object
|
|
*
|
|
* Returns the struct vmw_resource embedded in a struct vmw_surface
|
|
* for the user-visible object identified by the TTM base object @base.
|
|
*/
|
|
static struct vmw_resource *
|
|
vmw_user_surface_base_to_res(struct ttm_base_object *base)
|
|
{
|
|
return &(container_of(base, struct vmw_user_surface,
|
|
prime.base)->srf.res);
|
|
}
|
|
|
|
/**
|
|
* vmw_user_surface_free - User visible surface resource destructor
|
|
*
|
|
* @res: A struct vmw_resource embedded in a struct vmw_surface.
|
|
*/
|
|
static void vmw_user_surface_free(struct vmw_resource *res)
|
|
{
|
|
struct vmw_surface *srf = vmw_res_to_srf(res);
|
|
struct vmw_user_surface *user_srf =
|
|
container_of(srf, struct vmw_user_surface, srf);
|
|
struct vmw_private *dev_priv = srf->res.dev_priv;
|
|
uint32_t size = user_srf->size;
|
|
|
|
if (user_srf->master)
|
|
drm_master_put(&user_srf->master);
|
|
kfree(srf->offsets);
|
|
kfree(srf->sizes);
|
|
kfree(srf->snooper.image);
|
|
ttm_prime_object_kfree(user_srf, prime);
|
|
ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
|
|
}
|
|
|
|
/**
|
|
* vmw_user_surface_free - User visible surface TTM base object destructor
|
|
*
|
|
* @p_base: Pointer to a pointer to a TTM base object
|
|
* embedded in a struct vmw_user_surface.
|
|
*
|
|
* Drops the base object's reference on its resource, and the
|
|
* pointer pointed to by *p_base is set to NULL.
|
|
*/
|
|
static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
|
|
{
|
|
struct ttm_base_object *base = *p_base;
|
|
struct vmw_user_surface *user_srf =
|
|
container_of(base, struct vmw_user_surface, prime.base);
|
|
struct vmw_resource *res = &user_srf->srf.res;
|
|
|
|
*p_base = NULL;
|
|
if (user_srf->backup_base)
|
|
ttm_base_object_unref(&user_srf->backup_base);
|
|
vmw_resource_unreference(&res);
|
|
}
|
|
|
|
/**
|
|
* vmw_user_surface_destroy_ioctl - Ioctl function implementing
|
|
* the user surface destroy functionality.
|
|
*
|
|
* @dev: Pointer to a struct drm_device.
|
|
* @data: Pointer to data copied from / to user-space.
|
|
* @file_priv: Pointer to a drm file private structure.
|
|
*/
|
|
int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
|
|
return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE);
|
|
}
|
|
|
|
/**
|
|
* vmw_user_surface_define_ioctl - Ioctl function implementing
|
|
* the user surface define functionality.
|
|
*
|
|
* @dev: Pointer to a struct drm_device.
|
|
* @data: Pointer to data copied from / to user-space.
|
|
* @file_priv: Pointer to a drm file private structure.
|
|
*/
|
|
int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
|
struct vmw_user_surface *user_srf;
|
|
struct vmw_surface *srf;
|
|
struct vmw_resource *res;
|
|
struct vmw_resource *tmp;
|
|
union drm_vmw_surface_create_arg *arg =
|
|
(union drm_vmw_surface_create_arg *)data;
|
|
struct drm_vmw_surface_create_req *req = &arg->req;
|
|
struct drm_vmw_surface_arg *rep = &arg->rep;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
int ret;
|
|
int i, j;
|
|
uint32_t cur_bo_offset;
|
|
struct drm_vmw_size *cur_size;
|
|
struct vmw_surface_offset *cur_offset;
|
|
uint32_t num_sizes;
|
|
uint32_t size;
|
|
const struct svga3d_surface_desc *desc;
|
|
|
|
if (unlikely(vmw_user_surface_size == 0))
|
|
vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
|
|
128;
|
|
|
|
num_sizes = 0;
|
|
for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
|
|
if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
|
|
return -EINVAL;
|
|
num_sizes += req->mip_levels[i];
|
|
}
|
|
|
|
if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
|
|
num_sizes == 0)
|
|
return -EINVAL;
|
|
|
|
size = vmw_user_surface_size + 128 +
|
|
ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) +
|
|
ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset));
|
|
|
|
|
|
desc = svga3dsurface_get_desc(req->format);
|
|
if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
|
|
DRM_ERROR("Invalid surface format for surface creation.\n");
|
|
DRM_ERROR("Format requested is: %d\n", req->format);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = ttm_read_lock(&dev_priv->reservation_sem, true);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
|
|
size, false, true);
|
|
if (unlikely(ret != 0)) {
|
|
if (ret != -ERESTARTSYS)
|
|
DRM_ERROR("Out of graphics memory for surface"
|
|
" creation.\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
|
|
if (unlikely(!user_srf)) {
|
|
ret = -ENOMEM;
|
|
goto out_no_user_srf;
|
|
}
|
|
|
|
srf = &user_srf->srf;
|
|
res = &srf->res;
|
|
|
|
srf->flags = req->flags;
|
|
srf->format = req->format;
|
|
srf->scanout = req->scanout;
|
|
|
|
memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels));
|
|
srf->num_sizes = num_sizes;
|
|
user_srf->size = size;
|
|
srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long)
|
|
req->size_addr,
|
|
sizeof(*srf->sizes) * srf->num_sizes);
|
|
if (IS_ERR(srf->sizes)) {
|
|
ret = PTR_ERR(srf->sizes);
|
|
goto out_no_sizes;
|
|
}
|
|
srf->offsets = kmalloc_array(srf->num_sizes,
|
|
sizeof(*srf->offsets),
|
|
GFP_KERNEL);
|
|
if (unlikely(!srf->offsets)) {
|
|
ret = -ENOMEM;
|
|
goto out_no_offsets;
|
|
}
|
|
|
|
srf->base_size = *srf->sizes;
|
|
srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
|
|
srf->multisample_count = 0;
|
|
|
|
cur_bo_offset = 0;
|
|
cur_offset = srf->offsets;
|
|
cur_size = srf->sizes;
|
|
|
|
for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
|
|
for (j = 0; j < srf->mip_levels[i]; ++j) {
|
|
uint32_t stride = svga3dsurface_calculate_pitch
|
|
(desc, cur_size);
|
|
|
|
cur_offset->face = i;
|
|
cur_offset->mip = j;
|
|
cur_offset->bo_offset = cur_bo_offset;
|
|
cur_bo_offset += svga3dsurface_get_image_buffer_size
|
|
(desc, cur_size, stride);
|
|
++cur_offset;
|
|
++cur_size;
|
|
}
|
|
}
|
|
res->backup_size = cur_bo_offset;
|
|
if (srf->scanout &&
|
|
srf->num_sizes == 1 &&
|
|
srf->sizes[0].width == 64 &&
|
|
srf->sizes[0].height == 64 &&
|
|
srf->format == SVGA3D_A8R8G8B8) {
|
|
|
|
srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL);
|
|
if (!srf->snooper.image) {
|
|
DRM_ERROR("Failed to allocate cursor_image\n");
|
|
ret = -ENOMEM;
|
|
goto out_no_copy;
|
|
}
|
|
} else {
|
|
srf->snooper.image = NULL;
|
|
}
|
|
|
|
user_srf->prime.base.shareable = false;
|
|
user_srf->prime.base.tfile = NULL;
|
|
if (drm_is_primary_client(file_priv))
|
|
user_srf->master = drm_master_get(file_priv->master);
|
|
|
|
/**
|
|
* From this point, the generic resource management functions
|
|
* destroy the object on failure.
|
|
*/
|
|
|
|
ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
|
|
if (unlikely(ret != 0))
|
|
goto out_unlock;
|
|
|
|
/*
|
|
* A gb-aware client referencing a shared surface will
|
|
* expect a backup buffer to be present.
|
|
*/
|
|
if (dev_priv->has_mob && req->shareable) {
|
|
uint32_t backup_handle;
|
|
|
|
ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
|
|
res->backup_size,
|
|
true,
|
|
&backup_handle,
|
|
&res->backup,
|
|
&user_srf->backup_base);
|
|
if (unlikely(ret != 0)) {
|
|
vmw_resource_unreference(&res);
|
|
goto out_unlock;
|
|
}
|
|
}
|
|
|
|
tmp = vmw_resource_reference(&srf->res);
|
|
ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
|
|
req->shareable, VMW_RES_SURFACE,
|
|
&vmw_user_surface_base_release, NULL);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
vmw_resource_unreference(&tmp);
|
|
vmw_resource_unreference(&res);
|
|
goto out_unlock;
|
|
}
|
|
|
|
rep->sid = user_srf->prime.base.hash.key;
|
|
vmw_resource_unreference(&res);
|
|
|
|
ttm_read_unlock(&dev_priv->reservation_sem);
|
|
return 0;
|
|
out_no_copy:
|
|
kfree(srf->offsets);
|
|
out_no_offsets:
|
|
kfree(srf->sizes);
|
|
out_no_sizes:
|
|
ttm_prime_object_kfree(user_srf, prime);
|
|
out_no_user_srf:
|
|
ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
|
|
out_unlock:
|
|
ttm_read_unlock(&dev_priv->reservation_sem);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
vmw_surface_handle_reference(struct vmw_private *dev_priv,
|
|
struct drm_file *file_priv,
|
|
uint32_t u_handle,
|
|
enum drm_vmw_handle_type handle_type,
|
|
struct ttm_base_object **base_p)
|
|
{
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
struct vmw_user_surface *user_srf;
|
|
uint32_t handle;
|
|
struct ttm_base_object *base;
|
|
int ret;
|
|
bool require_exist = false;
|
|
|
|
if (handle_type == DRM_VMW_HANDLE_PRIME) {
|
|
ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
} else {
|
|
if (unlikely(drm_is_render_client(file_priv)))
|
|
require_exist = true;
|
|
|
|
if (READ_ONCE(vmw_fpriv(file_priv)->locked_master)) {
|
|
DRM_ERROR("Locked master refused legacy "
|
|
"surface reference.\n");
|
|
return -EACCES;
|
|
}
|
|
|
|
handle = u_handle;
|
|
}
|
|
|
|
ret = -EINVAL;
|
|
base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle);
|
|
if (unlikely(!base)) {
|
|
DRM_ERROR("Could not find surface to reference.\n");
|
|
goto out_no_lookup;
|
|
}
|
|
|
|
if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) {
|
|
DRM_ERROR("Referenced object is not a surface.\n");
|
|
goto out_bad_resource;
|
|
}
|
|
|
|
if (handle_type != DRM_VMW_HANDLE_PRIME) {
|
|
user_srf = container_of(base, struct vmw_user_surface,
|
|
prime.base);
|
|
|
|
/*
|
|
* Make sure the surface creator has the same
|
|
* authenticating master, or is already registered with us.
|
|
*/
|
|
if (drm_is_primary_client(file_priv) &&
|
|
user_srf->master != file_priv->master)
|
|
require_exist = true;
|
|
|
|
ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL,
|
|
require_exist);
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("Could not add a reference to a surface.\n");
|
|
goto out_bad_resource;
|
|
}
|
|
}
|
|
|
|
*base_p = base;
|
|
return 0;
|
|
|
|
out_bad_resource:
|
|
ttm_base_object_unref(&base);
|
|
out_no_lookup:
|
|
if (handle_type == DRM_VMW_HANDLE_PRIME)
|
|
(void) ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vmw_user_surface_define_ioctl - Ioctl function implementing
|
|
* the user surface reference functionality.
|
|
*
|
|
* @dev: Pointer to a struct drm_device.
|
|
* @data: Pointer to data copied from / to user-space.
|
|
* @file_priv: Pointer to a drm file private structure.
|
|
*/
|
|
int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
|
union drm_vmw_surface_reference_arg *arg =
|
|
(union drm_vmw_surface_reference_arg *)data;
|
|
struct drm_vmw_surface_arg *req = &arg->req;
|
|
struct drm_vmw_surface_create_req *rep = &arg->rep;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
struct vmw_surface *srf;
|
|
struct vmw_user_surface *user_srf;
|
|
struct drm_vmw_size __user *user_sizes;
|
|
struct ttm_base_object *base;
|
|
int ret;
|
|
|
|
ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
|
|
req->handle_type, &base);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
user_srf = container_of(base, struct vmw_user_surface, prime.base);
|
|
srf = &user_srf->srf;
|
|
|
|
rep->flags = srf->flags;
|
|
rep->format = srf->format;
|
|
memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels));
|
|
user_sizes = (struct drm_vmw_size __user *)(unsigned long)
|
|
rep->size_addr;
|
|
|
|
if (user_sizes)
|
|
ret = copy_to_user(user_sizes, &srf->base_size,
|
|
sizeof(srf->base_size));
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("copy_to_user failed %p %u\n",
|
|
user_sizes, srf->num_sizes);
|
|
ttm_ref_object_base_unref(tfile, base->hash.key, TTM_REF_USAGE);
|
|
ret = -EFAULT;
|
|
}
|
|
|
|
ttm_base_object_unref(&base);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vmw_surface_define_encode - Encode a surface_define command.
|
|
*
|
|
* @srf: Pointer to a struct vmw_surface object.
|
|
* @cmd_space: Pointer to memory area in which the commands should be encoded.
|
|
*/
|
|
static int vmw_gb_surface_create(struct vmw_resource *res)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct vmw_surface *srf = vmw_res_to_srf(res);
|
|
uint32_t cmd_len, cmd_id, submit_len;
|
|
int ret;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDefineGBSurface body;
|
|
} *cmd;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDefineGBSurface_v2 body;
|
|
} *cmd2;
|
|
|
|
if (likely(res->id != -1))
|
|
return 0;
|
|
|
|
vmw_fifo_resource_inc(dev_priv);
|
|
ret = vmw_resource_alloc_id(res);
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("Failed to allocate a surface id.\n");
|
|
goto out_no_id;
|
|
}
|
|
|
|
if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) {
|
|
ret = -EBUSY;
|
|
goto out_no_fifo;
|
|
}
|
|
|
|
if (srf->array_size > 0) {
|
|
/* has_dx checked on creation time. */
|
|
cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2;
|
|
cmd_len = sizeof(cmd2->body);
|
|
submit_len = sizeof(*cmd2);
|
|
} else {
|
|
cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE;
|
|
cmd_len = sizeof(cmd->body);
|
|
submit_len = sizeof(*cmd);
|
|
}
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, submit_len);
|
|
cmd2 = (typeof(cmd2))cmd;
|
|
if (unlikely(!cmd)) {
|
|
DRM_ERROR("Failed reserving FIFO space for surface "
|
|
"creation.\n");
|
|
ret = -ENOMEM;
|
|
goto out_no_fifo;
|
|
}
|
|
|
|
if (srf->array_size > 0) {
|
|
cmd2->header.id = cmd_id;
|
|
cmd2->header.size = cmd_len;
|
|
cmd2->body.sid = srf->res.id;
|
|
cmd2->body.surfaceFlags = srf->flags;
|
|
cmd2->body.format = cpu_to_le32(srf->format);
|
|
cmd2->body.numMipLevels = srf->mip_levels[0];
|
|
cmd2->body.multisampleCount = srf->multisample_count;
|
|
cmd2->body.autogenFilter = srf->autogen_filter;
|
|
cmd2->body.size.width = srf->base_size.width;
|
|
cmd2->body.size.height = srf->base_size.height;
|
|
cmd2->body.size.depth = srf->base_size.depth;
|
|
cmd2->body.arraySize = srf->array_size;
|
|
} else {
|
|
cmd->header.id = cmd_id;
|
|
cmd->header.size = cmd_len;
|
|
cmd->body.sid = srf->res.id;
|
|
cmd->body.surfaceFlags = srf->flags;
|
|
cmd->body.format = cpu_to_le32(srf->format);
|
|
cmd->body.numMipLevels = srf->mip_levels[0];
|
|
cmd->body.multisampleCount = srf->multisample_count;
|
|
cmd->body.autogenFilter = srf->autogen_filter;
|
|
cmd->body.size.width = srf->base_size.width;
|
|
cmd->body.size.height = srf->base_size.height;
|
|
cmd->body.size.depth = srf->base_size.depth;
|
|
}
|
|
|
|
vmw_fifo_commit(dev_priv, submit_len);
|
|
|
|
return 0;
|
|
|
|
out_no_fifo:
|
|
vmw_resource_release_id(res);
|
|
out_no_id:
|
|
vmw_fifo_resource_dec(dev_priv);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int vmw_gb_surface_bind(struct vmw_resource *res,
|
|
struct ttm_validate_buffer *val_buf)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdBindGBSurface body;
|
|
} *cmd1;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdUpdateGBSurface body;
|
|
} *cmd2;
|
|
uint32_t submit_size;
|
|
struct ttm_buffer_object *bo = val_buf->bo;
|
|
|
|
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
|
|
|
|
submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
|
|
|
|
cmd1 = vmw_fifo_reserve(dev_priv, submit_size);
|
|
if (unlikely(!cmd1)) {
|
|
DRM_ERROR("Failed reserving FIFO space for surface "
|
|
"binding.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
|
|
cmd1->header.size = sizeof(cmd1->body);
|
|
cmd1->body.sid = res->id;
|
|
cmd1->body.mobid = bo->mem.start;
|
|
if (res->backup_dirty) {
|
|
cmd2 = (void *) &cmd1[1];
|
|
cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE;
|
|
cmd2->header.size = sizeof(cmd2->body);
|
|
cmd2->body.sid = res->id;
|
|
res->backup_dirty = false;
|
|
}
|
|
vmw_fifo_commit(dev_priv, submit_size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vmw_gb_surface_unbind(struct vmw_resource *res,
|
|
bool readback,
|
|
struct ttm_validate_buffer *val_buf)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct ttm_buffer_object *bo = val_buf->bo;
|
|
struct vmw_fence_obj *fence;
|
|
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdReadbackGBSurface body;
|
|
} *cmd1;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdInvalidateGBSurface body;
|
|
} *cmd2;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdBindGBSurface body;
|
|
} *cmd3;
|
|
uint32_t submit_size;
|
|
uint8_t *cmd;
|
|
|
|
|
|
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
|
|
|
|
submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2));
|
|
cmd = vmw_fifo_reserve(dev_priv, submit_size);
|
|
if (unlikely(!cmd)) {
|
|
DRM_ERROR("Failed reserving FIFO space for surface "
|
|
"unbinding.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (readback) {
|
|
cmd1 = (void *) cmd;
|
|
cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
|
|
cmd1->header.size = sizeof(cmd1->body);
|
|
cmd1->body.sid = res->id;
|
|
cmd3 = (void *) &cmd1[1];
|
|
} else {
|
|
cmd2 = (void *) cmd;
|
|
cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE;
|
|
cmd2->header.size = sizeof(cmd2->body);
|
|
cmd2->body.sid = res->id;
|
|
cmd3 = (void *) &cmd2[1];
|
|
}
|
|
|
|
cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
|
|
cmd3->header.size = sizeof(cmd3->body);
|
|
cmd3->body.sid = res->id;
|
|
cmd3->body.mobid = SVGA3D_INVALID_ID;
|
|
|
|
vmw_fifo_commit(dev_priv, submit_size);
|
|
|
|
/*
|
|
* Create a fence object and fence the backup buffer.
|
|
*/
|
|
|
|
(void) vmw_execbuf_fence_commands(NULL, dev_priv,
|
|
&fence, NULL);
|
|
|
|
vmw_fence_single_bo(val_buf->bo, fence);
|
|
|
|
if (likely(fence != NULL))
|
|
vmw_fence_obj_unreference(&fence);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vmw_gb_surface_destroy(struct vmw_resource *res)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct vmw_surface *srf = vmw_res_to_srf(res);
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDestroyGBSurface body;
|
|
} *cmd;
|
|
|
|
if (likely(res->id == -1))
|
|
return 0;
|
|
|
|
mutex_lock(&dev_priv->binding_mutex);
|
|
vmw_view_surface_list_destroy(dev_priv, &srf->view_list);
|
|
vmw_binding_res_list_scrub(&res->binding_head);
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
|
|
if (unlikely(!cmd)) {
|
|
DRM_ERROR("Failed reserving FIFO space for surface "
|
|
"destruction.\n");
|
|
mutex_unlock(&dev_priv->binding_mutex);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE;
|
|
cmd->header.size = sizeof(cmd->body);
|
|
cmd->body.sid = res->id;
|
|
vmw_fifo_commit(dev_priv, sizeof(*cmd));
|
|
mutex_unlock(&dev_priv->binding_mutex);
|
|
vmw_resource_release_id(res);
|
|
vmw_fifo_resource_dec(dev_priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* vmw_gb_surface_define_ioctl - Ioctl function implementing
|
|
* the user surface define functionality.
|
|
*
|
|
* @dev: Pointer to a struct drm_device.
|
|
* @data: Pointer to data copied from / to user-space.
|
|
* @file_priv: Pointer to a drm file private structure.
|
|
*/
|
|
int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
|
struct vmw_user_surface *user_srf;
|
|
struct vmw_surface *srf;
|
|
struct vmw_resource *res;
|
|
struct vmw_resource *tmp;
|
|
union drm_vmw_gb_surface_create_arg *arg =
|
|
(union drm_vmw_gb_surface_create_arg *)data;
|
|
struct drm_vmw_gb_surface_create_req *req = &arg->req;
|
|
struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
int ret;
|
|
uint32_t size;
|
|
uint32_t backup_handle = 0;
|
|
|
|
if (req->multisample_count != 0)
|
|
return -EINVAL;
|
|
|
|
if (req->mip_levels > DRM_VMW_MAX_MIP_LEVELS)
|
|
return -EINVAL;
|
|
|
|
if (unlikely(vmw_user_surface_size == 0))
|
|
vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
|
|
128;
|
|
|
|
size = vmw_user_surface_size + 128;
|
|
|
|
/* Define a surface based on the parameters. */
|
|
ret = vmw_surface_gb_priv_define(dev,
|
|
size,
|
|
req->svga3d_flags,
|
|
req->format,
|
|
req->drm_surface_flags & drm_vmw_surface_flag_scanout,
|
|
req->mip_levels,
|
|
req->multisample_count,
|
|
req->array_size,
|
|
req->base_size,
|
|
&srf);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
user_srf = container_of(srf, struct vmw_user_surface, srf);
|
|
if (drm_is_primary_client(file_priv))
|
|
user_srf->master = drm_master_get(file_priv->master);
|
|
|
|
ret = ttm_read_lock(&dev_priv->reservation_sem, true);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
res = &user_srf->srf.res;
|
|
|
|
|
|
if (req->buffer_handle != SVGA3D_INVALID_ID) {
|
|
ret = vmw_user_dmabuf_lookup(tfile, req->buffer_handle,
|
|
&res->backup,
|
|
&user_srf->backup_base);
|
|
if (ret == 0) {
|
|
if (res->backup->base.num_pages * PAGE_SIZE <
|
|
res->backup_size) {
|
|
DRM_ERROR("Surface backup buffer is too small.\n");
|
|
vmw_dmabuf_unreference(&res->backup);
|
|
ret = -EINVAL;
|
|
goto out_unlock;
|
|
} else {
|
|
backup_handle = req->buffer_handle;
|
|
}
|
|
}
|
|
} else if (req->drm_surface_flags & drm_vmw_surface_flag_create_buffer)
|
|
ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
|
|
res->backup_size,
|
|
req->drm_surface_flags &
|
|
drm_vmw_surface_flag_shareable,
|
|
&backup_handle,
|
|
&res->backup,
|
|
&user_srf->backup_base);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
vmw_resource_unreference(&res);
|
|
goto out_unlock;
|
|
}
|
|
|
|
tmp = vmw_resource_reference(res);
|
|
ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
|
|
req->drm_surface_flags &
|
|
drm_vmw_surface_flag_shareable,
|
|
VMW_RES_SURFACE,
|
|
&vmw_user_surface_base_release, NULL);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
vmw_resource_unreference(&tmp);
|
|
vmw_resource_unreference(&res);
|
|
goto out_unlock;
|
|
}
|
|
|
|
rep->handle = user_srf->prime.base.hash.key;
|
|
rep->backup_size = res->backup_size;
|
|
if (res->backup) {
|
|
rep->buffer_map_handle =
|
|
drm_vma_node_offset_addr(&res->backup->base.vma_node);
|
|
rep->buffer_size = res->backup->base.num_pages * PAGE_SIZE;
|
|
rep->buffer_handle = backup_handle;
|
|
} else {
|
|
rep->buffer_map_handle = 0;
|
|
rep->buffer_size = 0;
|
|
rep->buffer_handle = SVGA3D_INVALID_ID;
|
|
}
|
|
|
|
vmw_resource_unreference(&res);
|
|
|
|
out_unlock:
|
|
ttm_read_unlock(&dev_priv->reservation_sem);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vmw_gb_surface_reference_ioctl - Ioctl function implementing
|
|
* the user surface reference functionality.
|
|
*
|
|
* @dev: Pointer to a struct drm_device.
|
|
* @data: Pointer to data copied from / to user-space.
|
|
* @file_priv: Pointer to a drm file private structure.
|
|
*/
|
|
int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
|
union drm_vmw_gb_surface_reference_arg *arg =
|
|
(union drm_vmw_gb_surface_reference_arg *)data;
|
|
struct drm_vmw_surface_arg *req = &arg->req;
|
|
struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
struct vmw_surface *srf;
|
|
struct vmw_user_surface *user_srf;
|
|
struct ttm_base_object *base;
|
|
uint32_t backup_handle;
|
|
int ret = -EINVAL;
|
|
|
|
ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
|
|
req->handle_type, &base);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
user_srf = container_of(base, struct vmw_user_surface, prime.base);
|
|
srf = &user_srf->srf;
|
|
if (!srf->res.backup) {
|
|
DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
|
|
goto out_bad_resource;
|
|
}
|
|
|
|
mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */
|
|
ret = vmw_user_dmabuf_reference(tfile, srf->res.backup,
|
|
&backup_handle);
|
|
mutex_unlock(&dev_priv->cmdbuf_mutex);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("Could not add a reference to a GB surface "
|
|
"backup buffer.\n");
|
|
(void) ttm_ref_object_base_unref(tfile, base->hash.key,
|
|
TTM_REF_USAGE);
|
|
goto out_bad_resource;
|
|
}
|
|
|
|
rep->creq.svga3d_flags = srf->flags;
|
|
rep->creq.format = srf->format;
|
|
rep->creq.mip_levels = srf->mip_levels[0];
|
|
rep->creq.drm_surface_flags = 0;
|
|
rep->creq.multisample_count = srf->multisample_count;
|
|
rep->creq.autogen_filter = srf->autogen_filter;
|
|
rep->creq.array_size = srf->array_size;
|
|
rep->creq.buffer_handle = backup_handle;
|
|
rep->creq.base_size = srf->base_size;
|
|
rep->crep.handle = user_srf->prime.base.hash.key;
|
|
rep->crep.backup_size = srf->res.backup_size;
|
|
rep->crep.buffer_handle = backup_handle;
|
|
rep->crep.buffer_map_handle =
|
|
drm_vma_node_offset_addr(&srf->res.backup->base.vma_node);
|
|
rep->crep.buffer_size = srf->res.backup->base.num_pages * PAGE_SIZE;
|
|
|
|
out_bad_resource:
|
|
ttm_base_object_unref(&base);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vmw_surface_gb_priv_define - Define a private GB surface
|
|
*
|
|
* @dev: Pointer to a struct drm_device
|
|
* @user_accounting_size: Used to track user-space memory usage, set
|
|
* to 0 for kernel mode only memory
|
|
* @svga3d_flags: SVGA3d surface flags for the device
|
|
* @format: requested surface format
|
|
* @for_scanout: true if inteded to be used for scanout buffer
|
|
* @num_mip_levels: number of MIP levels
|
|
* @multisample_count:
|
|
* @array_size: Surface array size.
|
|
* @size: width, heigh, depth of the surface requested
|
|
* @user_srf_out: allocated user_srf. Set to NULL on failure.
|
|
*
|
|
* GB surfaces allocated by this function will not have a user mode handle, and
|
|
* thus will only be visible to vmwgfx. For optimization reasons the
|
|
* surface may later be given a user mode handle by another function to make
|
|
* it available to user mode drivers.
|
|
*/
|
|
int vmw_surface_gb_priv_define(struct drm_device *dev,
|
|
uint32_t user_accounting_size,
|
|
uint32_t svga3d_flags,
|
|
SVGA3dSurfaceFormat format,
|
|
bool for_scanout,
|
|
uint32_t num_mip_levels,
|
|
uint32_t multisample_count,
|
|
uint32_t array_size,
|
|
struct drm_vmw_size size,
|
|
struct vmw_surface **srf_out)
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
|
struct vmw_user_surface *user_srf;
|
|
struct vmw_surface *srf;
|
|
int ret;
|
|
u32 num_layers;
|
|
|
|
*srf_out = NULL;
|
|
|
|
if (for_scanout) {
|
|
uint32_t max_width, max_height;
|
|
|
|
if (!svga3dsurface_is_screen_target_format(format)) {
|
|
DRM_ERROR("Invalid Screen Target surface format.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
max_width = min(dev_priv->texture_max_width,
|
|
dev_priv->stdu_max_width);
|
|
max_height = min(dev_priv->texture_max_height,
|
|
dev_priv->stdu_max_height);
|
|
|
|
if (size.width > max_width || size.height > max_height) {
|
|
DRM_ERROR("%ux%u\n, exceeds max surface size %ux%u",
|
|
size.width, size.height,
|
|
max_width, max_height);
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
const struct svga3d_surface_desc *desc;
|
|
|
|
desc = svga3dsurface_get_desc(format);
|
|
if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
|
|
DRM_ERROR("Invalid surface format.\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/* array_size must be null for non-GL3 host. */
|
|
if (array_size > 0 && !dev_priv->has_dx) {
|
|
DRM_ERROR("Tried to create DX surface on non-DX host.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = ttm_read_lock(&dev_priv->reservation_sem, true);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
|
|
user_accounting_size, false, true);
|
|
if (unlikely(ret != 0)) {
|
|
if (ret != -ERESTARTSYS)
|
|
DRM_ERROR("Out of graphics memory for surface"
|
|
" creation.\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
|
|
if (unlikely(!user_srf)) {
|
|
ret = -ENOMEM;
|
|
goto out_no_user_srf;
|
|
}
|
|
|
|
*srf_out = &user_srf->srf;
|
|
user_srf->size = user_accounting_size;
|
|
user_srf->prime.base.shareable = false;
|
|
user_srf->prime.base.tfile = NULL;
|
|
|
|
srf = &user_srf->srf;
|
|
srf->flags = svga3d_flags;
|
|
srf->format = format;
|
|
srf->scanout = for_scanout;
|
|
srf->mip_levels[0] = num_mip_levels;
|
|
srf->num_sizes = 1;
|
|
srf->sizes = NULL;
|
|
srf->offsets = NULL;
|
|
srf->base_size = size;
|
|
srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
|
|
srf->array_size = array_size;
|
|
srf->multisample_count = multisample_count;
|
|
|
|
if (array_size)
|
|
num_layers = array_size;
|
|
else if (svga3d_flags & SVGA3D_SURFACE_CUBEMAP)
|
|
num_layers = SVGA3D_MAX_SURFACE_FACES;
|
|
else
|
|
num_layers = 1;
|
|
|
|
srf->res.backup_size =
|
|
svga3dsurface_get_serialized_size(srf->format,
|
|
srf->base_size,
|
|
srf->mip_levels[0],
|
|
num_layers);
|
|
|
|
if (srf->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT)
|
|
srf->res.backup_size += sizeof(SVGA3dDXSOState);
|
|
|
|
if (dev_priv->active_display_unit == vmw_du_screen_target &&
|
|
for_scanout)
|
|
srf->flags |= SVGA3D_SURFACE_SCREENTARGET;
|
|
|
|
/*
|
|
* From this point, the generic resource management functions
|
|
* destroy the object on failure.
|
|
*/
|
|
ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
|
|
|
|
ttm_read_unlock(&dev_priv->reservation_sem);
|
|
return ret;
|
|
|
|
out_no_user_srf:
|
|
ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size);
|
|
|
|
out_unlock:
|
|
ttm_read_unlock(&dev_priv->reservation_sem);
|
|
return ret;
|
|
}
|