drm/vmwgfx: Add guest-backed shaders
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Zack Rusin <zackr@vmware.com>
This commit is contained in:
Thomas Hellstrom
parent
a97e21923b
commit
c74c162fd9
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@ -6,6 +6,6 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
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vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \
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vmwgfx_overlay.o vmwgfx_marker.o vmwgfx_gmrid_manager.o \
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vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o vmwgfx_context.o \
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vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o
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vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o vmwgfx_shader.o
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obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o
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@ -112,6 +112,12 @@
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#define DRM_IOCTL_VMW_UPDATE_LAYOUT \
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DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \
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struct drm_vmw_update_layout_arg)
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#define DRM_IOCTL_VMW_CREATE_SHADER \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER, \
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struct drm_vmw_shader_create_arg)
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#define DRM_IOCTL_VMW_UNREF_SHADER \
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DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER, \
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struct drm_vmw_shader_arg)
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#define DRM_IOCTL_VMW_GB_SURFACE_CREATE \
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DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE, \
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union drm_vmw_gb_surface_create_arg)
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@ -183,6 +189,12 @@ static const struct drm_ioctl_desc vmw_ioctls[] = {
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VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
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vmw_kms_update_layout_ioctl,
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DRM_MASTER | DRM_UNLOCKED),
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VMW_IOCTL_DEF(VMW_CREATE_SHADER,
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vmw_shader_define_ioctl,
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DRM_AUTH | DRM_UNLOCKED),
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VMW_IOCTL_DEF(VMW_UNREF_SHADER,
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vmw_shader_destroy_ioctl,
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DRM_AUTH | DRM_UNLOCKED),
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VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE,
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vmw_gb_surface_define_ioctl,
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DRM_AUTH | DRM_UNLOCKED),
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@ -70,6 +70,7 @@
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#define VMW_RES_SURFACE ttm_driver_type1
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#define VMW_RES_STREAM ttm_driver_type2
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#define VMW_RES_FENCE ttm_driver_type3
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#define VMW_RES_SHADER ttm_driver_type4
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struct vmw_fpriv {
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struct drm_master *locked_master;
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@ -119,6 +120,7 @@ enum vmw_res_type {
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vmw_res_context,
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vmw_res_surface,
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vmw_res_stream,
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vmw_res_shader,
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vmw_res_max
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};
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@ -495,6 +497,7 @@ extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id);
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struct vmw_user_resource_conv;
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extern const struct vmw_user_resource_conv *user_surface_converter;
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extern const struct vmw_user_resource_conv *user_context_converter;
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extern const struct vmw_user_resource_conv *user_shader_converter;
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extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv);
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extern void vmw_resource_unreference(struct vmw_resource **p_res);
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@ -883,6 +886,15 @@ extern struct vmw_mob *vmw_mob_create(unsigned long data_pages);
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extern int vmw_otables_setup(struct vmw_private *dev_priv);
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extern void vmw_otables_takedown(struct vmw_private *dev_priv);
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/*
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* Shader management - vmwgfx_shader.c
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*/
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extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/**
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* Inline helper functions
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*/
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@ -1426,9 +1426,41 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
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if (unlikely(ret != 0))
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return ret;
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if (dev_priv->has_mob)
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return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
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user_shader_converter,
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&cmd->body.shid, NULL);
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return 0;
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}
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/**
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* vmw_cmd_bind_gb_shader - Validate an SVGA_3D_CMD_BIND_GB_SHADER
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* command
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*
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* @dev_priv: Pointer to a device private struct.
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* @sw_context: The software context being used for this batch.
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* @header: Pointer to the command header in the command stream.
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*/
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static int vmw_cmd_bind_gb_shader(struct vmw_private *dev_priv,
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struct vmw_sw_context *sw_context,
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SVGA3dCmdHeader *header)
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{
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struct vmw_bind_gb_shader_cmd {
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SVGA3dCmdHeader header;
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SVGA3dCmdBindGBShader body;
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} *cmd;
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cmd = container_of(header, struct vmw_bind_gb_shader_cmd,
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header);
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return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_shader,
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user_shader_converter,
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&cmd->body.shid, &cmd->body.mobid,
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cmd->body.offsetInBytes);
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}
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static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv,
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struct vmw_sw_context *sw_context,
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void *buf, uint32_t *size)
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@ -1536,6 +1568,9 @@ static vmw_cmd_func vmw_cmd_funcs[SVGA_3D_CMD_MAX] = {
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VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid),
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VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_CONTEXT, &vmw_cmd_invalid),
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VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_CONTEXT, &vmw_cmd_invalid),
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VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SHADER, &vmw_cmd_invalid),
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VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SHADER, &vmw_cmd_bind_gb_shader),
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VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SHADER, &vmw_cmd_invalid),
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VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_GB_QUERY, &vmw_cmd_begin_gb_query),
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VMW_CMD_DEF(SVGA_3D_CMD_END_GB_QUERY, &vmw_cmd_end_gb_query),
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VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_GB_QUERY, &vmw_cmd_wait_gb_query),
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@ -0,0 +1,436 @@
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/**************************************************************************
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*
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* Copyright © 2009-2012 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_drv.h"
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#include "vmwgfx_resource_priv.h"
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#include "ttm/ttm_placement.h"
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struct vmw_shader {
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struct vmw_resource res;
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SVGA3dShaderType type;
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uint32_t size;
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};
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struct vmw_user_shader {
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struct ttm_base_object base;
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struct vmw_shader shader;
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};
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static void vmw_user_shader_free(struct vmw_resource *res);
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static struct vmw_resource *
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vmw_user_shader_base_to_res(struct ttm_base_object *base);
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static int vmw_gb_shader_create(struct vmw_resource *res);
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static int vmw_gb_shader_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf);
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static int vmw_gb_shader_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_shader_destroy(struct vmw_resource *res);
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static uint64_t vmw_user_shader_size;
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static const struct vmw_user_resource_conv user_shader_conv = {
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.object_type = VMW_RES_SHADER,
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.base_obj_to_res = vmw_user_shader_base_to_res,
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.res_free = vmw_user_shader_free
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};
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const struct vmw_user_resource_conv *user_shader_converter =
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&user_shader_conv;
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static const struct vmw_res_func vmw_gb_shader_func = {
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.res_type = vmw_res_shader,
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.needs_backup = true,
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.may_evict = true,
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.type_name = "guest backed shaders",
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.backup_placement = &vmw_mob_placement,
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.create = vmw_gb_shader_create,
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.destroy = vmw_gb_shader_destroy,
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.bind = vmw_gb_shader_bind,
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.unbind = vmw_gb_shader_unbind
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};
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/**
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* Shader management:
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*/
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static inline struct vmw_shader *
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vmw_res_to_shader(struct vmw_resource *res)
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{
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return container_of(res, struct vmw_shader, res);
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}
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static void vmw_hw_shader_destroy(struct vmw_resource *res)
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{
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(void) vmw_gb_shader_destroy(res);
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}
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static int vmw_gb_shader_init(struct vmw_private *dev_priv,
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struct vmw_resource *res,
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uint32_t size,
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uint64_t offset,
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SVGA3dShaderType type,
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struct vmw_dma_buffer *byte_code,
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void (*res_free) (struct vmw_resource *res))
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{
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struct vmw_shader *shader = vmw_res_to_shader(res);
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int ret;
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ret = vmw_resource_init(dev_priv, res, true,
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res_free, &vmw_gb_shader_func);
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if (unlikely(ret != 0)) {
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if (res_free)
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res_free(res);
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else
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kfree(res);
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return ret;
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}
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res->backup_size = size;
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if (byte_code) {
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res->backup = vmw_dmabuf_reference(byte_code);
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res->backup_offset = offset;
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}
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shader->size = size;
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shader->type = type;
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vmw_resource_activate(res, vmw_hw_shader_destroy);
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return 0;
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}
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static int vmw_gb_shader_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_shader *shader = vmw_res_to_shader(res);
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int ret;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdDefineGBShader body;
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} *cmd;
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if (likely(res->id != -1))
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return 0;
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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 shader id.\n");
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goto out_no_id;
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}
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if (unlikely(res->id >= VMWGFX_NUM_GB_SHADER)) {
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ret = -EBUSY;
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goto out_no_fifo;
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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("Failed reserving FIFO space for shader "
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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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cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SHADER;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.shid = res->id;
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cmd->body.type = shader->type;
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cmd->body.sizeInBytes = shader->size;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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(void) vmw_3d_resource_inc(dev_priv, false);
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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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static int vmw_gb_shader_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf)
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{
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struct vmw_private *dev_priv = res->dev_priv;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdBindGBShader body;
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} *cmd;
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struct ttm_buffer_object *bo = val_buf->bo;
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BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
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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("Failed reserving FIFO space for shader "
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"binding.\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_BIND_GB_SHADER;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.shid = res->id;
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cmd->body.mobid = bo->mem.start;
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cmd->body.offsetInBytes = 0;
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res->backup_dirty = false;
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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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static int vmw_gb_shader_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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{
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struct vmw_private *dev_priv = res->dev_priv;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdBindGBShader body;
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} *cmd;
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struct vmw_fence_obj *fence;
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BUG_ON(res->backup->base.mem.mem_type != VMW_PL_MOB);
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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("Failed reserving FIFO space for shader "
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"unbinding.\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_BIND_GB_SHADER;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.shid = res->id;
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cmd->body.mobid = SVGA3D_INVALID_ID;
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cmd->body.offsetInBytes = 0;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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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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static int vmw_gb_shader_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 {
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SVGA3dCmdHeader header;
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SVGA3dCmdDestroyGBShader body;
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} *cmd;
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if (likely(res->id == -1))
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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("Failed reserving FIFO space for shader "
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"destruction.\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SHADER;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.shid = res->id;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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vmw_resource_release_id(res);
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vmw_3d_resource_dec(dev_priv, false);
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return 0;
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}
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/**
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* User-space shader management:
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*/
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static struct vmw_resource *
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vmw_user_shader_base_to_res(struct ttm_base_object *base)
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{
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return &(container_of(base, struct vmw_user_shader, base)->
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shader.res);
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}
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static void vmw_user_shader_free(struct vmw_resource *res)
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{
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struct vmw_user_shader *ushader =
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container_of(res, struct vmw_user_shader, shader.res);
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struct vmw_private *dev_priv = res->dev_priv;
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ttm_base_object_kfree(ushader, base);
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ttm_mem_global_free(vmw_mem_glob(dev_priv),
|
||||
vmw_user_shader_size);
|
||||
}
|
||||
|
||||
/**
|
||||
* This function is called when user space has no more references on the
|
||||
* base object. It releases the base-object's reference on the resource object.
|
||||
*/
|
||||
|
||||
static void vmw_user_shader_base_release(struct ttm_base_object **p_base)
|
||||
{
|
||||
struct ttm_base_object *base = *p_base;
|
||||
struct vmw_resource *res = vmw_user_shader_base_to_res(base);
|
||||
|
||||
*p_base = NULL;
|
||||
vmw_resource_unreference(&res);
|
||||
}
|
||||
|
||||
int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
|
||||
struct drm_file *file_priv)
|
||||
{
|
||||
struct drm_vmw_shader_arg *arg = (struct drm_vmw_shader_arg *)data;
|
||||
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
||||
|
||||
return ttm_ref_object_base_unref(tfile, arg->handle,
|
||||
TTM_REF_USAGE);
|
||||
}
|
||||
|
||||
int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
|
||||
struct drm_file *file_priv)
|
||||
{
|
||||
struct vmw_private *dev_priv = vmw_priv(dev);
|
||||
struct vmw_user_shader *ushader;
|
||||
struct vmw_resource *res;
|
||||
struct vmw_resource *tmp;
|
||||
struct drm_vmw_shader_create_arg *arg =
|
||||
(struct drm_vmw_shader_create_arg *)data;
|
||||
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
||||
struct vmw_master *vmaster = vmw_master(file_priv->master);
|
||||
struct vmw_dma_buffer *buffer = NULL;
|
||||
SVGA3dShaderType shader_type;
|
||||
int ret;
|
||||
|
||||
if (arg->buffer_handle != SVGA3D_INVALID_ID) {
|
||||
ret = vmw_user_dmabuf_lookup(tfile, arg->buffer_handle,
|
||||
&buffer);
|
||||
if (unlikely(ret != 0)) {
|
||||
DRM_ERROR("Could not find buffer for shader "
|
||||
"creation.\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if ((u64)buffer->base.num_pages * PAGE_SIZE <
|
||||
(u64)arg->size + (u64)arg->offset) {
|
||||
DRM_ERROR("Illegal buffer- or shader size.\n");
|
||||
ret = -EINVAL;
|
||||
goto out_bad_arg;
|
||||
}
|
||||
}
|
||||
|
||||
switch (arg->shader_type) {
|
||||
case drm_vmw_shader_type_vs:
|
||||
shader_type = SVGA3D_SHADERTYPE_VS;
|
||||
break;
|
||||
case drm_vmw_shader_type_ps:
|
||||
shader_type = SVGA3D_SHADERTYPE_PS;
|
||||
break;
|
||||
case drm_vmw_shader_type_gs:
|
||||
shader_type = SVGA3D_SHADERTYPE_GS;
|
||||
break;
|
||||
default:
|
||||
DRM_ERROR("Illegal shader type.\n");
|
||||
ret = -EINVAL;
|
||||
goto out_bad_arg;
|
||||
}
|
||||
|
||||
/*
|
||||
* Approximate idr memory usage with 128 bytes. It will be limited
|
||||
* by maximum number_of shaders anyway.
|
||||
*/
|
||||
|
||||
if (unlikely(vmw_user_shader_size == 0))
|
||||
vmw_user_shader_size = ttm_round_pot(sizeof(*ushader))
|
||||
+ 128;
|
||||
|
||||
ret = ttm_read_lock(&vmaster->lock, true);
|
||||
if (unlikely(ret != 0))
|
||||
return ret;
|
||||
|
||||
ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
|
||||
vmw_user_shader_size,
|
||||
false, true);
|
||||
if (unlikely(ret != 0)) {
|
||||
if (ret != -ERESTARTSYS)
|
||||
DRM_ERROR("Out of graphics memory for shader"
|
||||
" creation.\n");
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
ushader = kzalloc(sizeof(*ushader), GFP_KERNEL);
|
||||
if (unlikely(ushader == NULL)) {
|
||||
ttm_mem_global_free(vmw_mem_glob(dev_priv),
|
||||
vmw_user_shader_size);
|
||||
ret = -ENOMEM;
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
res = &ushader->shader.res;
|
||||
ushader->base.shareable = false;
|
||||
ushader->base.tfile = NULL;
|
||||
|
||||
/*
|
||||
* From here on, the destructor takes over resource freeing.
|
||||
*/
|
||||
|
||||
ret = vmw_gb_shader_init(dev_priv, res, arg->size,
|
||||
arg->offset, shader_type, buffer,
|
||||
vmw_user_shader_free);
|
||||
if (unlikely(ret != 0))
|
||||
goto out_unlock;
|
||||
|
||||
tmp = vmw_resource_reference(res);
|
||||
ret = ttm_base_object_init(tfile, &ushader->base, false,
|
||||
VMW_RES_SHADER,
|
||||
&vmw_user_shader_base_release, NULL);
|
||||
|
||||
if (unlikely(ret != 0)) {
|
||||
vmw_resource_unreference(&tmp);
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
arg->shader_handle = ushader->base.hash.key;
|
||||
out_err:
|
||||
vmw_resource_unreference(&res);
|
||||
out_unlock:
|
||||
ttm_read_unlock(&vmaster->lock);
|
||||
out_bad_arg:
|
||||
vmw_dmabuf_unreference(&buffer);
|
||||
|
||||
return ret;
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue