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drm/vmwgfx: Break out surface and context management to separate files

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Add a resource-private header for common resource definitions

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2012-11-20 12:19:36 +00:00 committed by Dave Airlie
parent c0951b797e
commit 543831cfc9
5 changed files with 1337 additions and 1235 deletions
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3
drivers/gpu/drm/vmwgfx/Makefile
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@ -5,6 +5,7 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
vmwgfx_fb.o vmwgfx_ioctl.o vmwgfx_resource.o vmwgfx_buffer.o \
vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \
vmwgfx_overlay.o vmwgfx_marker.o vmwgfx_gmrid_manager.o \
vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o
vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o vmwgfx_context.o \
vmwgfx_surface.o
obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o

274
drivers/gpu/drm/vmwgfx/vmwgfx_context.c Normal file
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@ -0,0 +1,274 @@
/**************************************************************************
*
* Copyright © 2009-2012 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "vmwgfx_drv.h"
#include "vmwgfx_resource_priv.h"
#include "ttm/ttm_placement.h"
struct vmw_user_context {
struct ttm_base_object base;
struct vmw_resource res;
};
static void vmw_user_context_free(struct vmw_resource *res);
static struct vmw_resource *
vmw_user_context_base_to_res(struct ttm_base_object *base);
static uint64_t vmw_user_context_size;
static const struct vmw_user_resource_conv user_context_conv = {
.object_type = VMW_RES_CONTEXT,
.base_obj_to_res = vmw_user_context_base_to_res,
.res_free = vmw_user_context_free
};
const struct vmw_user_resource_conv *user_context_converter =
&user_context_conv;
static const struct vmw_res_func vmw_legacy_context_func = {
.res_type = vmw_res_context,
.needs_backup = false,
.may_evict = false,
.type_name = "legacy contexts",
.backup_placement = NULL,
.create = NULL,
.destroy = NULL,
.bind = NULL,
.unbind = NULL
};
/**
* Context management:
*/
static void vmw_hw_context_destroy(struct vmw_resource *res)
{
struct vmw_private *dev_priv = res->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDestroyContext body;
} *cmd;
vmw_execbuf_release_pinned_bo(dev_priv);
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"destruction.\n");
return;
}
cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DESTROY);
cmd->header.size = cpu_to_le32(sizeof(cmd->body));
cmd->body.cid = cpu_to_le32(res->id);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
vmw_3d_resource_dec(dev_priv, false);
}
static int vmw_context_init(struct vmw_private *dev_priv,
struct vmw_resource *res,
void (*res_free) (struct vmw_resource *res))
{
int ret;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDefineContext body;
} *cmd;
ret = vmw_resource_init(dev_priv, res, false,
res_free, &vmw_legacy_context_func);
if (unlikely(ret != 0)) {
DRM_ERROR("Failed to allocate a resource id.\n");
goto out_early;
}
if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) {
DRM_ERROR("Out of hw context ids.\n");
vmw_resource_unreference(&res);
return -ENOMEM;
}
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Fifo reserve failed.\n");
vmw_resource_unreference(&res);
return -ENOMEM;
}
cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DEFINE);
cmd->header.size = cpu_to_le32(sizeof(cmd->body));
cmd->body.cid = cpu_to_le32(res->id);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
(void) vmw_3d_resource_inc(dev_priv, false);
vmw_resource_activate(res, vmw_hw_context_destroy);
return 0;
out_early:
if (res_free == NULL)
kfree(res);
else
res_free(res);
return ret;
}
struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv)
{
struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL);
int ret;
if (unlikely(res == NULL))
return NULL;
ret = vmw_context_init(dev_priv, res, NULL);
return (ret == 0) ? res : NULL;
}
/**
* User-space context management:
*/
static struct vmw_resource *
vmw_user_context_base_to_res(struct ttm_base_object *base)
{
return &(container_of(base, struct vmw_user_context, base)->res);
}
static void vmw_user_context_free(struct vmw_resource *res)
{
struct vmw_user_context *ctx =
container_of(res, struct vmw_user_context, res);
struct vmw_private *dev_priv = res->dev_priv;
ttm_base_object_kfree(ctx, base);
ttm_mem_global_free(vmw_mem_glob(dev_priv),
vmw_user_context_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_context_base_release(struct ttm_base_object **p_base)
{
struct ttm_base_object *base = *p_base;
struct vmw_user_context *ctx =
container_of(base, struct vmw_user_context, base);
struct vmw_resource *res = &ctx->res;
*p_base = NULL;
vmw_resource_unreference(&res);
}
int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data;
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
return ttm_ref_object_base_unref(tfile, arg->cid, TTM_REF_USAGE);
}
int vmw_context_define_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct vmw_user_context *ctx;
struct vmw_resource *res;
struct vmw_resource *tmp;
struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data;
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
struct vmw_master *vmaster = vmw_master(file_priv->master);
int ret;
/*
* Approximate idr memory usage with 128 bytes. It will be limited
* by maximum number_of contexts anyway.
*/
if (unlikely(vmw_user_context_size == 0))
vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 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_context_size,
false, true);
if (unlikely(ret != 0)) {
if (ret != -ERESTARTSYS)
DRM_ERROR("Out of graphics memory for context"
" creation.\n");
goto out_unlock;
}
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (unlikely(ctx == NULL)) {
ttm_mem_global_free(vmw_mem_glob(dev_priv),
vmw_user_context_size);
ret = -ENOMEM;
goto out_unlock;
}
res = &ctx->res;
ctx->base.shareable = false;
ctx->base.tfile = NULL;
/*
* From here on, the destructor takes over resource freeing.
*/
ret = vmw_context_init(dev_priv, res, vmw_user_context_free);
if (unlikely(ret != 0))
goto out_unlock;
tmp = vmw_resource_reference(&ctx->res);
ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT,
&vmw_user_context_base_release, NULL);
if (unlikely(ret != 0)) {
vmw_resource_unreference(&tmp);
goto out_err;
}
arg->cid = ctx->base.hash.key;
out_err:
vmw_resource_unreference(&res);
out_unlock:
ttm_read_unlock(&vmaster->lock);
return ret;
}

1243
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
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File diff suppressed because it is too large Load Diff

84
drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h Normal file
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@ -0,0 +1,84 @@
/**************************************************************************
*
* Copyright © 2012 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef _VMWGFX_RESOURCE_PRIV_H_
#define _VMWGFX_RESOURCE_PRIV_H_
#include "vmwgfx_drv.h"
/**
* struct vmw_user_resource_conv - Identify a derived user-exported resource
* type and provide a function to convert its ttm_base_object pointer to
* a struct vmw_resource
*/
struct vmw_user_resource_conv {
enum ttm_object_type object_type;
struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base);
void (*res_free) (struct vmw_resource *res);
};
/**
* struct vmw_res_func - members and functions common for a resource type
*
* @res_type: Enum that identifies the lru list to use for eviction.
* @needs_backup: Whether the resource is guest-backed and needs
* persistent buffer storage.
* @type_name: String that identifies the resource type.
* @backup_placement: TTM placement for backup buffers.
* @may_evict Whether the resource may be evicted.
* @create: Create a hardware resource.
* @destroy: Destroy a hardware resource.
* @bind: Bind a hardware resource to persistent buffer storage.
* @unbind: Unbind a hardware resource from persistent
* buffer storage.
*/
struct vmw_res_func {
enum vmw_res_type res_type;
bool needs_backup;
const char *type_name;
struct ttm_placement *backup_placement;
bool may_evict;
int (*create) (struct vmw_resource *res);
int (*destroy) (struct vmw_resource *res);
int (*bind) (struct vmw_resource *res,
struct ttm_validate_buffer *val_buf);
int (*unbind) (struct vmw_resource *res,
bool readback,
struct ttm_validate_buffer *val_buf);
};
int vmw_resource_alloc_id(struct vmw_resource *res);
void vmw_resource_release_id(struct vmw_resource *res);
int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res,
bool delay_id,
void (*res_free) (struct vmw_resource *res),
const struct vmw_res_func *func);
void vmw_resource_activate(struct vmw_resource *res,
void (*hw_destroy) (struct vmw_resource *));
#endif

968
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c Normal file
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@ -0,0 +1,968 @@
/**************************************************************************
*
* Copyright © 2009-2012 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "vmwgfx_drv.h"
#include "vmwgfx_resource_priv.h"
#include <ttm/ttm_placement.h>
/**
* struct vmw_user_surface - User-space visible surface resource
*
* @base: The TTM base object handling user-space visibility.
* @srf: The surface metadata.
* @size: TTM accounting size for the surface.
*/
struct vmw_user_surface {
struct ttm_base_object base;
struct vmw_surface srf;
uint32_t size;
uint32_t backup_handle;
};
/**
* struct vmw_surface_offset - Backing store mip level offset info
*
* @face: Surface face.
* @mip: Mip level.
* @bo_offset: Offset into backing store of this mip level.
*
*/
struct vmw_surface_offset {
uint32_t face;
uint32_t mip;
uint32_t bo_offset;
};
static void vmw_user_surface_free(struct vmw_resource *res);
static struct vmw_resource *
vmw_user_surface_base_to_res(struct ttm_base_object *base);
static int vmw_legacy_srf_bind(struct vmw_resource *res,
struct ttm_validate_buffer *val_buf);
static int vmw_legacy_srf_unbind(struct vmw_resource *res,
bool readback,
struct ttm_validate_buffer *val_buf);
static int vmw_legacy_srf_create(struct vmw_resource *res);
static int vmw_legacy_srf_destroy(struct vmw_resource *res);
static const struct vmw_user_resource_conv user_surface_conv = {
.object_type = VMW_RES_SURFACE,
.base_obj_to_res = vmw_user_surface_base_to_res,
.res_free = vmw_user_surface_free
};
const struct vmw_user_resource_conv *user_surface_converter =
&user_surface_conv;
static uint64_t vmw_user_surface_size;
static const struct vmw_res_func vmw_legacy_surface_func = {
.res_type = vmw_res_surface,
.needs_backup = false,
.may_evict = true,
.type_name = "legacy surfaces",
.backup_placement = &vmw_srf_placement,
.create = &vmw_legacy_srf_create,
.destroy = &vmw_legacy_srf_destroy,
.bind = &vmw_legacy_srf_bind,
.unbind = &vmw_legacy_srf_unbind
};
/**
* struct vmw_bpp - Bits per pixel info for surface storage size computation.
*
* @bpp: Bits per pixel.
* @s_bpp: Stride bits per pixel. See definition below.
*
*/
struct vmw_bpp {
uint8_t bpp;
uint8_t s_bpp;
};
/*
* Size table for the supported SVGA3D surface formats. It consists of
* two values. The bpp value and the s_bpp value which is short for
* "stride bits per pixel" The values are given in such a way that the
* minimum stride for the image is calculated using
*
* min_stride = w*s_bpp
*
* and the total memory requirement for the image is
*
* h*min_stride*bpp/s_bpp
*
*/
static const struct vmw_bpp vmw_sf_bpp[] = {
[SVGA3D_FORMAT_INVALID] = {0, 0},
[SVGA3D_X8R8G8B8] = {32, 32},
[SVGA3D_A8R8G8B8] = {32, 32},
[SVGA3D_R5G6B5] = {16, 16},
[SVGA3D_X1R5G5B5] = {16, 16},
[SVGA3D_A1R5G5B5] = {16, 16},
[SVGA3D_A4R4G4B4] = {16, 16},
[SVGA3D_Z_D32] = {32, 32},
[SVGA3D_Z_D16] = {16, 16},
[SVGA3D_Z_D24S8] = {32, 32},
[SVGA3D_Z_D15S1] = {16, 16},
[SVGA3D_LUMINANCE8] = {8, 8},
[SVGA3D_LUMINANCE4_ALPHA4] = {8, 8},
[SVGA3D_LUMINANCE16] = {16, 16},
[SVGA3D_LUMINANCE8_ALPHA8] = {16, 16},
[SVGA3D_DXT1] = {4, 16},
[SVGA3D_DXT2] = {8, 32},
[SVGA3D_DXT3] = {8, 32},
[SVGA3D_DXT4] = {8, 32},
[SVGA3D_DXT5] = {8, 32},
[SVGA3D_BUMPU8V8] = {16, 16},
[SVGA3D_BUMPL6V5U5] = {16, 16},
[SVGA3D_BUMPX8L8V8U8] = {32, 32},
[SVGA3D_ARGB_S10E5] = {16, 16},
[SVGA3D_ARGB_S23E8] = {32, 32},
[SVGA3D_A2R10G10B10] = {32, 32},
[SVGA3D_V8U8] = {16, 16},
[SVGA3D_Q8W8V8U8] = {32, 32},
[SVGA3D_CxV8U8] = {16, 16},
[SVGA3D_X8L8V8U8] = {32, 32},
[SVGA3D_A2W10V10U10] = {32, 32},
[SVGA3D_ALPHA8] = {8, 8},
[SVGA3D_R_S10E5] = {16, 16},
[SVGA3D_R_S23E8] = {32, 32},
[SVGA3D_RG_S10E5] = {16, 16},
[SVGA3D_RG_S23E8] = {32, 32},
[SVGA3D_BUFFER] = {8, 8},
[SVGA3D_Z_D24X8] = {32, 32},
[SVGA3D_V16U16] = {32, 32},
[SVGA3D_G16R16] = {32, 32},
[SVGA3D_A16B16G16R16] = {64, 64},
[SVGA3D_UYVY] = {12, 12},
[SVGA3D_YUY2] = {12, 12},
[SVGA3D_NV12] = {12, 8},
[SVGA3D_AYUV] = {32, 32},
[SVGA3D_BC4_UNORM] = {4, 16},
[SVGA3D_BC5_UNORM] = {8, 32},
[SVGA3D_Z_DF16] = {16, 16},
[SVGA3D_Z_DF24] = {24, 24},
[SVGA3D_Z_D24S8_INT] = {32, 32}
};
/**
* struct vmw_surface_dma - SVGA3D DMA command
*/
struct vmw_surface_dma {
SVGA3dCmdHeader header;
SVGA3dCmdSurfaceDMA body;
SVGA3dCopyBox cb;
SVGA3dCmdSurfaceDMASuffix suffix;
};
/**
* struct vmw_surface_define - SVGA3D Surface Define command
*/
struct vmw_surface_define {
SVGA3dCmdHeader header;
SVGA3dCmdDefineSurface body;
};
/**
* struct vmw_surface_destroy - SVGA3D Surface Destroy command
*/
struct vmw_surface_destroy {
SVGA3dCmdHeader header;
SVGA3dCmdDestroySurface body;
};
/**
* vmw_surface_dma_size - Compute fifo size for a dma command.
*
* @srf: Pointer to a struct vmw_surface
*
* Computes the required size for a surface dma command for backup or
* restoration of the surface represented by @srf.
*/
static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf)
{
return srf->num_sizes * sizeof(struct vmw_surface_dma);
}
/**
* vmw_surface_define_size - Compute fifo size for a surface define command.
*
* @srf: Pointer to a struct vmw_surface
*
* Computes the required size for a surface define command for the definition
* of the surface represented by @srf.
*/
static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf)
{
return sizeof(struct vmw_surface_define) + srf->num_sizes *
sizeof(SVGA3dSize);
}
/**
* vmw_surface_destroy_size - Compute fifo size for a surface destroy command.
*
* Computes the required size for a surface destroy command for the destruction
* of a hw surface.
*/
static inline uint32_t vmw_surface_destroy_size(void)
{
return sizeof(struct vmw_surface_destroy);
}
/**
* vmw_surface_destroy_encode - Encode a surface_destroy command.
*
* @id: The surface id
* @cmd_space: Pointer to memory area in which the commands should be encoded.
*/
static void vmw_surface_destroy_encode(uint32_t id,
void *cmd_space)
{
struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *)
cmd_space;
cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY;
cmd->header.size = sizeof(cmd->body);
cmd->body.sid = id;
}
/**
* 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 void vmw_surface_define_encode(const struct vmw_surface *srf,
void *cmd_space)
{
struct vmw_surface_define *cmd = (struct vmw_surface_define *)
cmd_space;
struct drm_vmw_size *src_size;
SVGA3dSize *cmd_size;
uint32_t cmd_len;
int i;
cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize);
cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
cmd->header.size = cmd_len;
cmd->body.sid = srf->res.id;
cmd->body.surfaceFlags = srf->flags;
cmd->body.format = cpu_to_le32(srf->format);
for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
cmd->body.face[i].numMipLevels = srf->mip_levels[i];
cmd += 1;
cmd_size = (SVGA3dSize *) cmd;
src_size = srf->sizes;
for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) {
cmd_size->width = src_size->width;
cmd_size->height = src_size->height;
cmd_size->depth = src_size->depth;
}
}
/**
* vmw_surface_dma_encode - Encode a surface_dma command.
*
* @srf: Pointer to a struct vmw_surface object.
* @cmd_space: Pointer to memory area in which the commands should be encoded.
* @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents
* should be placed or read from.
* @to_surface: Boolean whether to DMA to the surface or from the surface.
*/
static void vmw_surface_dma_encode(struct vmw_surface *srf,
void *cmd_space,
const SVGAGuestPtr *ptr,
bool to_surface)
{
uint32_t i;
uint32_t bpp = vmw_sf_bpp[srf->format].bpp;
uint32_t stride_bpp = vmw_sf_bpp[srf->format].s_bpp;
struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
for (i = 0; i < srf->num_sizes; ++i) {
SVGA3dCmdHeader *header = &cmd->header;
SVGA3dCmdSurfaceDMA *body = &cmd->body;
SVGA3dCopyBox *cb = &cmd->cb;
SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix;
const struct vmw_surface_offset *cur_offset = &srf->offsets[i];
const struct drm_vmw_size *cur_size = &srf->sizes[i];
header->id = SVGA_3D_CMD_SURFACE_DMA;
header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix);
body->guest.ptr = *ptr;
body->guest.ptr.offset += cur_offset->bo_offset;
body->guest.pitch = (cur_size->width * stride_bpp + 7) >> 3;
body->host.sid = srf->res.id;
body->host.face = cur_offset->face;
body->host.mipmap = cur_offset->mip;
body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM :
SVGA3D_READ_HOST_VRAM);
cb->x = 0;
cb->y = 0;
cb->z = 0;
cb->srcx = 0;
cb->srcy = 0;
cb->srcz = 0;
cb->w = cur_size->width;
cb->h = cur_size->height;
cb->d = cur_size->depth;
suffix->suffixSize = sizeof(*suffix);
suffix->maximumOffset = body->guest.pitch*cur_size->height*
cur_size->depth*bpp / stride_bpp;
suffix->flags.discard = 0;
suffix->flags.unsynchronized = 0;
suffix->flags.reserved = 0;
++cmd;
}
};
/**
* vmw_hw_surface_destroy - destroy a Device surface
*
* @res: Pointer to a struct vmw_resource embedded in a struct
* vmw_surface.
*
* Destroys a the device surface associated with a struct vmw_surface if
* any, and adjusts accounting and resource count accordingly.
*/
static void vmw_hw_surface_destroy(struct vmw_resource *res)
{
struct vmw_private *dev_priv = res->dev_priv;
struct vmw_surface *srf;
void *cmd;
if (res->id != -1) {
cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size());
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"destruction.\n");
return;
}
vmw_surface_destroy_encode(res->id, cmd);
vmw_fifo_commit(dev_priv, vmw_surface_destroy_size());
/*
* used_memory_size_atomic, or separate lock
* to avoid taking dev_priv::cmdbuf_mutex in
* the destroy path.
*/
mutex_lock(&dev_priv->cmdbuf_mutex);
srf = vmw_res_to_srf(res);
dev_priv->used_memory_size -= res->backup_size;
mutex_unlock(&dev_priv->cmdbuf_mutex);
}
vmw_3d_resource_dec(dev_priv, false);
}
/**
* vmw_legacy_srf_create - Create a device surface as part of the
* resource validation process.
*
* @res: Pointer to a struct vmw_surface.
*
* If the surface doesn't have a hw id.
*
* Returns -EBUSY if there wasn't sufficient device resources to
* complete the validation. Retry after freeing up resources.
*
* May return other errors if the kernel is out of guest resources.
*/
static int vmw_legacy_srf_create(struct vmw_resource *res)
{
struct vmw_private *dev_priv = res->dev_priv;
struct vmw_surface *srf;
uint32_t submit_size;
uint8_t *cmd;
int ret;
if (likely(res->id != -1))
return 0;
srf = vmw_res_to_srf(res);
if (unlikely(dev_priv->used_memory_size + res->backup_size >=
dev_priv->memory_size))
return -EBUSY;
/*
* Alloc id for the resource.
*/
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 >= SVGA3D_MAX_SURFACE_IDS)) {
ret = -EBUSY;
goto out_no_fifo;
}
/*
* Encode surface define- commands.
*/
submit_size = vmw_surface_define_size(srf);
cmd = vmw_fifo_reserve(dev_priv, submit_size);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"creation.\n");
ret = -ENOMEM;
goto out_no_fifo;
}
vmw_surface_define_encode(srf, cmd);
vmw_fifo_commit(dev_priv, submit_size);
/*
* Surface memory usage accounting.
*/
dev_priv->used_memory_size += res->backup_size;
return 0;
out_no_fifo:
vmw_resource_release_id(res);
out_no_id:
return ret;
}
/**
* vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
*
* @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.
* @bind: Boolean wether to DMA to the surface.
*
* Transfer backup data to or from a legacy surface as part of the
* validation process.
* May return other errors if the kernel is out of guest resources.
* The backup buffer will be fenced or idle upon successful completion,
* and if the surface needs persistent backup storage, the backup buffer
* will also be returned reserved iff @bind is true.
*/
static int vmw_legacy_srf_dma(struct vmw_resource *res,
struct ttm_validate_buffer *val_buf,
bool bind)
{
SVGAGuestPtr ptr;
struct vmw_fence_obj *fence;
uint32_t submit_size;
struct vmw_surface *srf = vmw_res_to_srf(res);
uint8_t *cmd;
struct vmw_private *dev_priv = res->dev_priv;
BUG_ON(val_buf->bo == NULL);
submit_size = vmw_surface_dma_size(srf);
cmd = vmw_fifo_reserve(dev_priv, submit_size);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for surface "
"DMA.\n");
return -ENOMEM;
}
vmw_bo_get_guest_ptr(val_buf->bo, &ptr);
vmw_surface_dma_encode(srf, cmd, &ptr, bind);
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;
}
/**
* vmw_legacy_srf_bind - Perform a legacy surface bind as part of the
* surface validation 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 to the surface if the
* backup buffer is dirty.
*/
static int vmw_legacy_srf_bind(struct vmw_resource *res,
struct ttm_validate_buffer *val_buf)
{
if (!res->backup_dirty)
return 0;
return vmw_legacy_srf_dma(res, val_buf, true);
}
/**
* 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 == NULL)) {
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 == NULL);
(void) vmw_3d_resource_inc(dev_priv, false);
ret = vmw_resource_init(dev_priv, res, true, res_free,
&vmw_legacy_surface_func);
if (unlikely(ret != 0)) {
vmw_3d_resource_dec(dev_priv, false);
res_free(res);
return ret;
}
/*
* The surface won't be visible to hardware until a
* surface validate.
*/
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, 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;
kfree(srf->offsets);
kfree(srf->sizes);
kfree(srf->snooper.image);
ttm_base_object_kfree(user_srf, base);
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, base);
struct vmw_resource *res = &user_srf->srf.res;
*p_base = NULL;
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;
struct drm_vmw_size __user *user_sizes;
int ret;
int i, j;
uint32_t cur_bo_offset;
struct drm_vmw_size *cur_size;
struct vmw_surface_offset *cur_offset;
uint32_t stride_bpp;
uint32_t bpp;
uint32_t num_sizes;
uint32_t size;
struct vmw_master *vmaster = vmw_master(file_priv->master);
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)
num_sizes += req->mip_levels[i];
if (num_sizes > DRM_VMW_MAX_SURFACE_FACES *
DRM_VMW_MAX_MIP_LEVELS)
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));
ret = ttm_read_lock(&vmaster->lock, 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 == NULL)) {
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 = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL);
if (unlikely(srf->sizes == NULL)) {
ret = -ENOMEM;
goto out_no_sizes;
}
srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets),
GFP_KERNEL);
if (unlikely(srf->sizes == NULL)) {
ret = -ENOMEM;
goto out_no_offsets;
}
user_sizes = (struct drm_vmw_size __user *)(unsigned long)
req->size_addr;
ret = copy_from_user(srf->sizes, user_sizes,
srf->num_sizes * sizeof(*srf->sizes));
if (unlikely(ret != 0)) {
ret = -EFAULT;
goto out_no_copy;
}
srf->base_size = *srf->sizes;
srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
srf->multisample_count = 1;
cur_bo_offset = 0;
cur_offset = srf->offsets;
cur_size = srf->sizes;
bpp = vmw_sf_bpp[srf->format].bpp;
stride_bpp = vmw_sf_bpp[srf->format].s_bpp;
for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
for (j = 0; j < srf->mip_levels[i]; ++j) {
uint32_t stride =
(cur_size->width * stride_bpp + 7) >> 3;
cur_offset->face = i;
cur_offset->mip = j;
cur_offset->bo_offset = cur_bo_offset;
cur_bo_offset += stride * cur_size->height *
cur_size->depth * bpp / stride_bpp;
++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 = kmalloc(64 * 64 * 4, GFP_KERNEL);
/* clear the image */
if (srf->snooper.image) {
memset(srf->snooper.image, 0x00, 64 * 64 * 4);
} else {
DRM_ERROR("Failed to allocate cursor_image\n");
ret = -ENOMEM;
goto out_no_copy;
}
} else {
srf->snooper.image = NULL;
}
srf->snooper.crtc = NULL;
user_srf->base.shareable = false;
user_srf->base.tfile = NULL;
/**
* 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;
tmp = vmw_resource_reference(&srf->res);
ret = ttm_base_object_init(tfile, &user_srf->base,
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->base.hash.key;
vmw_resource_unreference(&res);
ttm_read_unlock(&vmaster->lock);
return 0;
out_no_copy:
kfree(srf->offsets);
out_no_offsets:
kfree(srf->sizes);
out_no_sizes:
ttm_base_object_kfree(user_srf, base);
out_no_user_srf:
ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
out_unlock:
ttm_read_unlock(&vmaster->lock);
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)
{
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 = -EINVAL;
base = ttm_base_object_lookup(tfile, req->sid);
if (unlikely(base == NULL)) {
DRM_ERROR("Could not find surface to reference.\n");
return -EINVAL;
}
if (unlikely(base->object_type != VMW_RES_SURFACE))
goto out_bad_resource;
user_srf = container_of(base, struct vmw_user_surface, base);
srf = &user_srf->srf;
ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL);
if (unlikely(ret != 0)) {
DRM_ERROR("Could not add a reference to a surface.\n");
goto out_no_reference;
}
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->sizes,
srf->num_sizes * sizeof(*srf->sizes));
if (unlikely(ret != 0)) {
DRM_ERROR("copy_to_user failed %p %u\n",
user_sizes, srf->num_sizes);
ret = -EFAULT;
}
out_bad_resource:
out_no_reference:
ttm_base_object_unref(&base);
return ret;
}