linux/drivers/gpu/drm/vmwgfx/vmwgfx_context.c
Thomas Hellstrom 18e4a4669c drm/vmwgfx: Fix compat shader namespace
Contrary to the host-backed shader interface that has a per-context
name-space for shaders, the compat shader namespace was per client
(or rather, per file). Fix this so that the compat shader namespace is per
context, and at the same time, make command buffer managed context resource
management generic.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-07-04 12:12:09 +02:00

922 lines
24 KiB
C

/**************************************************************************
*
* 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;
struct vmw_ctx_binding_state cbs;
struct vmw_cmdbuf_res_manager *man;
};
typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *, bool);
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 int vmw_gb_context_create(struct vmw_resource *res);
static int vmw_gb_context_bind(struct vmw_resource *res,
struct ttm_validate_buffer *val_buf);
static int vmw_gb_context_unbind(struct vmw_resource *res,
bool readback,
struct ttm_validate_buffer *val_buf);
static int vmw_gb_context_destroy(struct vmw_resource *res);
static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi,
bool rebind);
static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi, bool rebind);
static void vmw_context_binding_state_scrub(struct vmw_ctx_binding_state *cbs);
static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs);
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
};
static const struct vmw_res_func vmw_gb_context_func = {
.res_type = vmw_res_context,
.needs_backup = true,
.may_evict = true,
.type_name = "guest backed contexts",
.backup_placement = &vmw_mob_placement,
.create = vmw_gb_context_create,
.destroy = vmw_gb_context_destroy,
.bind = vmw_gb_context_bind,
.unbind = vmw_gb_context_unbind
};
static const vmw_scrub_func vmw_scrub_funcs[vmw_ctx_binding_max] = {
[vmw_ctx_binding_shader] = vmw_context_scrub_shader,
[vmw_ctx_binding_rt] = vmw_context_scrub_render_target,
[vmw_ctx_binding_tex] = vmw_context_scrub_texture };
/**
* Context management:
*/
static void vmw_hw_context_destroy(struct vmw_resource *res)
{
struct vmw_user_context *uctx =
container_of(res, struct vmw_user_context, res);
struct vmw_private *dev_priv = res->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDestroyContext body;
} *cmd;
if (res->func->destroy == vmw_gb_context_destroy) {
mutex_lock(&dev_priv->cmdbuf_mutex);
vmw_cmdbuf_res_man_destroy(uctx->man);
mutex_lock(&dev_priv->binding_mutex);
(void) vmw_context_binding_state_kill(&uctx->cbs);
(void) vmw_gb_context_destroy(res);
mutex_unlock(&dev_priv->binding_mutex);
if (dev_priv->pinned_bo != NULL &&
!dev_priv->query_cid_valid)
__vmw_execbuf_release_pinned_bo(dev_priv, NULL);
mutex_unlock(&dev_priv->cmdbuf_mutex);
return;
}
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_gb_context_init(struct vmw_private *dev_priv,
struct vmw_resource *res,
void (*res_free) (struct vmw_resource *res))
{
int ret;
struct vmw_user_context *uctx =
container_of(res, struct vmw_user_context, res);
ret = vmw_resource_init(dev_priv, res, true,
res_free, &vmw_gb_context_func);
res->backup_size = SVGA3D_CONTEXT_DATA_SIZE;
if (unlikely(ret != 0))
goto out_err;
if (dev_priv->has_mob) {
uctx->man = vmw_cmdbuf_res_man_create(dev_priv);
if (unlikely(IS_ERR(uctx->man))) {
ret = PTR_ERR(uctx->man);
uctx->man = NULL;
goto out_err;
}
}
memset(&uctx->cbs, 0, sizeof(uctx->cbs));
INIT_LIST_HEAD(&uctx->cbs.list);
vmw_resource_activate(res, vmw_hw_context_destroy);
return 0;
out_err:
if (res_free)
res_free(res);
else
kfree(res);
return ret;
}
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;
if (dev_priv->has_mob)
return vmw_gb_context_init(dev_priv, res, res_free);
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;
}
static int vmw_gb_context_create(struct vmw_resource *res)
{
struct vmw_private *dev_priv = res->dev_priv;
int ret;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDefineGBContext body;
} *cmd;
if (likely(res->id != -1))
return 0;
ret = vmw_resource_alloc_id(res);
if (unlikely(ret != 0)) {
DRM_ERROR("Failed to allocate a context id.\n");
goto out_no_id;
}
if (unlikely(res->id >= VMWGFX_NUM_GB_CONTEXT)) {
ret = -EBUSY;
goto out_no_fifo;
}
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for context "
"creation.\n");
ret = -ENOMEM;
goto out_no_fifo;
}
cmd->header.id = SVGA_3D_CMD_DEFINE_GB_CONTEXT;
cmd->header.size = sizeof(cmd->body);
cmd->body.cid = res->id;
vmw_fifo_commit(dev_priv, sizeof(*cmd));
(void) vmw_3d_resource_inc(dev_priv, false);
return 0;
out_no_fifo:
vmw_resource_release_id(res);
out_no_id:
return ret;
}
static int vmw_gb_context_bind(struct vmw_resource *res,
struct ttm_validate_buffer *val_buf)
{
struct vmw_private *dev_priv = res->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdBindGBContext body;
} *cmd;
struct ttm_buffer_object *bo = val_buf->bo;
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for context "
"binding.\n");
return -ENOMEM;
}
cmd->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT;
cmd->header.size = sizeof(cmd->body);
cmd->body.cid = res->id;
cmd->body.mobid = bo->mem.start;
cmd->body.validContents = res->backup_dirty;
res->backup_dirty = false;
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
}
static int vmw_gb_context_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 vmw_user_context *uctx =
container_of(res, struct vmw_user_context, res);
struct {
SVGA3dCmdHeader header;
SVGA3dCmdReadbackGBContext body;
} *cmd1;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdBindGBContext body;
} *cmd2;
uint32_t submit_size;
uint8_t *cmd;
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_state_scrub(&uctx->cbs);
submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0);
cmd = vmw_fifo_reserve(dev_priv, submit_size);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for context "
"unbinding.\n");
mutex_unlock(&dev_priv->binding_mutex);
return -ENOMEM;
}
cmd2 = (void *) cmd;
if (readback) {
cmd1 = (void *) cmd;
cmd1->header.id = SVGA_3D_CMD_READBACK_GB_CONTEXT;
cmd1->header.size = sizeof(cmd1->body);
cmd1->body.cid = res->id;
cmd2 = (void *) (&cmd1[1]);
}
cmd2->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT;
cmd2->header.size = sizeof(cmd2->body);
cmd2->body.cid = res->id;
cmd2->body.mobid = SVGA3D_INVALID_ID;
vmw_fifo_commit(dev_priv, submit_size);
mutex_unlock(&dev_priv->binding_mutex);
/*
* Create a fence object and fence the backup buffer.
*/
(void) vmw_execbuf_fence_commands(NULL, dev_priv,
&fence, NULL);
vmw_fence_single_bo(bo, fence);
if (likely(fence != NULL))
vmw_fence_obj_unreference(&fence);
return 0;
}
static int vmw_gb_context_destroy(struct vmw_resource *res)
{
struct vmw_private *dev_priv = res->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDestroyGBContext body;
} *cmd;
if (likely(res->id == -1))
return 0;
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for context "
"destruction.\n");
return -ENOMEM;
}
cmd->header.id = SVGA_3D_CMD_DESTROY_GB_CONTEXT;
cmd->header.size = sizeof(cmd->body);
cmd->body.cid = res->id;
vmw_fifo_commit(dev_priv, sizeof(*cmd));
if (dev_priv->query_cid == res->id)
dev_priv->query_cid_valid = false;
vmw_resource_release_id(res);
vmw_3d_resource_dec(dev_priv, false);
return 0;
}
/**
* 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;
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 +
((dev_priv->has_mob) ? vmw_cmdbuf_res_man_size() : 0);
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),
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(&dev_priv->reservation_sem);
return ret;
}
/**
* vmw_context_scrub_shader - scrub a shader binding from a context.
*
* @bi: single binding information.
* @rebind: Whether to issue a bind instead of scrub command.
*/
static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdSetShader body;
} *cmd;
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for shader "
"unbinding.\n");
return -ENOMEM;
}
cmd->header.id = SVGA_3D_CMD_SET_SHADER;
cmd->header.size = sizeof(cmd->body);
cmd->body.cid = bi->ctx->id;
cmd->body.type = bi->i1.shader_type;
cmd->body.shid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
}
/**
* vmw_context_scrub_render_target - scrub a render target binding
* from a context.
*
* @bi: single binding information.
* @rebind: Whether to issue a bind instead of scrub command.
*/
static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi,
bool rebind)
{
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdSetRenderTarget body;
} *cmd;
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for render target "
"unbinding.\n");
return -ENOMEM;
}
cmd->header.id = SVGA_3D_CMD_SETRENDERTARGET;
cmd->header.size = sizeof(cmd->body);
cmd->body.cid = bi->ctx->id;
cmd->body.type = bi->i1.rt_type;
cmd->body.target.sid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
cmd->body.target.face = 0;
cmd->body.target.mipmap = 0;
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
}
/**
* vmw_context_scrub_texture - scrub a texture binding from a context.
*
* @bi: single binding information.
* @rebind: Whether to issue a bind instead of scrub command.
*
* TODO: Possibly complement this function with a function that takes
* a list of texture bindings and combines them to a single command.
*/
static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi,
bool rebind)
{
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
struct {
SVGA3dCmdSetTextureState c;
SVGA3dTextureState s1;
} body;
} *cmd;
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for texture "
"unbinding.\n");
return -ENOMEM;
}
cmd->header.id = SVGA_3D_CMD_SETTEXTURESTATE;
cmd->header.size = sizeof(cmd->body);
cmd->body.c.cid = bi->ctx->id;
cmd->body.s1.stage = bi->i1.texture_stage;
cmd->body.s1.name = SVGA3D_TS_BIND_TEXTURE;
cmd->body.s1.value = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
}
/**
* vmw_context_binding_drop: Stop tracking a context binding
*
* @cb: Pointer to binding tracker storage.
*
* Stops tracking a context binding, and re-initializes its storage.
* Typically used when the context binding is replaced with a binding to
* another (or the same, for that matter) resource.
*/
static void vmw_context_binding_drop(struct vmw_ctx_binding *cb)
{
list_del(&cb->ctx_list);
if (!list_empty(&cb->res_list))
list_del(&cb->res_list);
cb->bi.ctx = NULL;
}
/**
* vmw_context_binding_add: Start tracking a context binding
*
* @cbs: Pointer to the context binding state tracker.
* @bi: Information about the binding to track.
*
* Performs basic checks on the binding to make sure arguments are within
* bounds and then starts tracking the binding in the context binding
* state structure @cbs.
*/
int vmw_context_binding_add(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *bi)
{
struct vmw_ctx_binding *loc;
switch (bi->bt) {
case vmw_ctx_binding_rt:
if (unlikely((unsigned)bi->i1.rt_type >= SVGA3D_RT_MAX)) {
DRM_ERROR("Illegal render target type %u.\n",
(unsigned) bi->i1.rt_type);
return -EINVAL;
}
loc = &cbs->render_targets[bi->i1.rt_type];
break;
case vmw_ctx_binding_tex:
if (unlikely((unsigned)bi->i1.texture_stage >=
SVGA3D_NUM_TEXTURE_UNITS)) {
DRM_ERROR("Illegal texture/sampler unit %u.\n",
(unsigned) bi->i1.texture_stage);
return -EINVAL;
}
loc = &cbs->texture_units[bi->i1.texture_stage];
break;
case vmw_ctx_binding_shader:
if (unlikely((unsigned)bi->i1.shader_type >=
SVGA3D_SHADERTYPE_MAX)) {
DRM_ERROR("Illegal shader type %u.\n",
(unsigned) bi->i1.shader_type);
return -EINVAL;
}
loc = &cbs->shaders[bi->i1.shader_type];
break;
default:
BUG();
}
if (loc->bi.ctx != NULL)
vmw_context_binding_drop(loc);
loc->bi = *bi;
loc->bi.scrubbed = false;
list_add_tail(&loc->ctx_list, &cbs->list);
INIT_LIST_HEAD(&loc->res_list);
return 0;
}
/**
* vmw_context_binding_transfer: Transfer a context binding tracking entry.
*
* @cbs: Pointer to the persistent context binding state tracker.
* @bi: Information about the binding to track.
*
*/
static void vmw_context_binding_transfer(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *bi)
{
struct vmw_ctx_binding *loc;
switch (bi->bt) {
case vmw_ctx_binding_rt:
loc = &cbs->render_targets[bi->i1.rt_type];
break;
case vmw_ctx_binding_tex:
loc = &cbs->texture_units[bi->i1.texture_stage];
break;
case vmw_ctx_binding_shader:
loc = &cbs->shaders[bi->i1.shader_type];
break;
default:
BUG();
}
if (loc->bi.ctx != NULL)
vmw_context_binding_drop(loc);
if (bi->res != NULL) {
loc->bi = *bi;
list_add_tail(&loc->ctx_list, &cbs->list);
list_add_tail(&loc->res_list, &bi->res->binding_head);
}
}
/**
* vmw_context_binding_kill - Kill a binding on the device
* and stop tracking it.
*
* @cb: Pointer to binding tracker storage.
*
* Emits FIFO commands to scrub a binding represented by @cb.
* Then stops tracking the binding and re-initializes its storage.
*/
static void vmw_context_binding_kill(struct vmw_ctx_binding *cb)
{
if (!cb->bi.scrubbed) {
(void) vmw_scrub_funcs[cb->bi.bt](&cb->bi, false);
cb->bi.scrubbed = true;
}
vmw_context_binding_drop(cb);
}
/**
* vmw_context_binding_state_kill - Kill all bindings associated with a
* struct vmw_ctx_binding state structure, and re-initialize the structure.
*
* @cbs: Pointer to the context binding state tracker.
*
* Emits commands to scrub all bindings associated with the
* context binding state tracker. Then re-initializes the whole structure.
*/
static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs)
{
struct vmw_ctx_binding *entry, *next;
list_for_each_entry_safe(entry, next, &cbs->list, ctx_list)
vmw_context_binding_kill(entry);
}
/**
* vmw_context_binding_state_scrub - Scrub all bindings associated with a
* struct vmw_ctx_binding state structure.
*
* @cbs: Pointer to the context binding state tracker.
*
* Emits commands to scrub all bindings associated with the
* context binding state tracker.
*/
static void vmw_context_binding_state_scrub(struct vmw_ctx_binding_state *cbs)
{
struct vmw_ctx_binding *entry;
list_for_each_entry(entry, &cbs->list, ctx_list) {
if (!entry->bi.scrubbed) {
(void) vmw_scrub_funcs[entry->bi.bt](&entry->bi, false);
entry->bi.scrubbed = true;
}
}
}
/**
* vmw_context_binding_res_list_kill - Kill all bindings on a
* resource binding list
*
* @head: list head of resource binding list
*
* Kills all bindings associated with a specific resource. Typically
* called before the resource is destroyed.
*/
void vmw_context_binding_res_list_kill(struct list_head *head)
{
struct vmw_ctx_binding *entry, *next;
list_for_each_entry_safe(entry, next, head, res_list)
vmw_context_binding_kill(entry);
}
/**
* vmw_context_binding_res_list_scrub - Scrub all bindings on a
* resource binding list
*
* @head: list head of resource binding list
*
* Scrub all bindings associated with a specific resource. Typically
* called before the resource is evicted.
*/
void vmw_context_binding_res_list_scrub(struct list_head *head)
{
struct vmw_ctx_binding *entry;
list_for_each_entry(entry, head, res_list) {
if (!entry->bi.scrubbed) {
(void) vmw_scrub_funcs[entry->bi.bt](&entry->bi, false);
entry->bi.scrubbed = true;
}
}
}
/**
* vmw_context_binding_state_transfer - Commit staged binding info
*
* @ctx: Pointer to context to commit the staged binding info to.
* @from: Staged binding info built during execbuf.
*
* Transfers binding info from a temporary structure to the persistent
* structure in the context. This can be done once commands
*/
void vmw_context_binding_state_transfer(struct vmw_resource *ctx,
struct vmw_ctx_binding_state *from)
{
struct vmw_user_context *uctx =
container_of(ctx, struct vmw_user_context, res);
struct vmw_ctx_binding *entry, *next;
list_for_each_entry_safe(entry, next, &from->list, ctx_list)
vmw_context_binding_transfer(&uctx->cbs, &entry->bi);
}
/**
* vmw_context_rebind_all - Rebind all scrubbed bindings of a context
*
* @ctx: The context resource
*
* Walks through the context binding list and rebinds all scrubbed
* resources.
*/
int vmw_context_rebind_all(struct vmw_resource *ctx)
{
struct vmw_ctx_binding *entry;
struct vmw_user_context *uctx =
container_of(ctx, struct vmw_user_context, res);
struct vmw_ctx_binding_state *cbs = &uctx->cbs;
int ret;
list_for_each_entry(entry, &cbs->list, ctx_list) {
if (likely(!entry->bi.scrubbed))
continue;
if (WARN_ON(entry->bi.res == NULL || entry->bi.res->id ==
SVGA3D_INVALID_ID))
continue;
ret = vmw_scrub_funcs[entry->bi.bt](&entry->bi, true);
if (unlikely(ret != 0))
return ret;
entry->bi.scrubbed = false;
}
return 0;
}
/**
* vmw_context_binding_list - Return a list of context bindings
*
* @ctx: The context resource
*
* Returns the current list of bindings of the given context. Note that
* this list becomes stale as soon as the dev_priv::binding_mutex is unlocked.
*/
struct list_head *vmw_context_binding_list(struct vmw_resource *ctx)
{
return &(container_of(ctx, struct vmw_user_context, res)->cbs.list);
}
struct vmw_cmdbuf_res_manager *vmw_context_res_man(struct vmw_resource *ctx)
{
return container_of(ctx, struct vmw_user_context, res)->man;
}