提交 b5c3b1a6 编写于 作者: T Thomas Hellstrom

drm/vmwgfx: Track context bindings and scrub them upon exiting execbuf

The device is no longer capable of scrubbing context bindings of resources
that are bound when destroyed.
Signed-off-by: NThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NJakob Bornecrantz <jakob@vmware.com>
上级 8ba07315
......@@ -34,6 +34,10 @@ struct vmw_user_context {
struct vmw_resource res;
};
typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *);
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);
......@@ -45,6 +49,9 @@ 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);
static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi);
static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi);
static uint64_t vmw_user_context_size;
......@@ -82,6 +89,11 @@ static const struct vmw_res_func vmw_gb_context_func = {
.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:
*/
......@@ -494,3 +506,207 @@ int vmw_context_define_ioctl(struct drm_device *dev, void *data,
return ret;
}
/**
* vmw_context_scrub_shader - scrub a shader binding from a context.
*
* @bi: single binding information.
*/
static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi)
{
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 = 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.
*/
static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi)
{
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 = 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.
*
* 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)
{
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 = (uint32) 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);
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;
list_add_tail(&loc->ctx_list, &cbs->list);
return 0;
}
/**
* 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.
*/
void vmw_context_binding_kill(struct vmw_ctx_binding *cb)
{
(void) vmw_scrub_funcs[cb->bi.bt](&cb->bi);
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.
*/
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);
}
}
......@@ -245,6 +245,67 @@ struct vmw_piter {
struct page *(*page)(struct vmw_piter *);
};
/*
* enum vmw_ctx_binding_type - abstract resource to context binding types
*/
enum vmw_ctx_binding_type {
vmw_ctx_binding_shader,
vmw_ctx_binding_rt,
vmw_ctx_binding_tex,
vmw_ctx_binding_max
};
/**
* struct vmw_ctx_bindinfo - structure representing a single context binding
*
* @ctx: Pointer to the context structure. NULL means the binding is not
* active.
* @bt: The binding type.
* @i1: Union of information needed to unbind.
*/
struct vmw_ctx_bindinfo {
struct vmw_resource *ctx;
enum vmw_ctx_binding_type bt;
union {
SVGA3dShaderType shader_type;
SVGA3dRenderTargetType rt_type;
uint32 texture_stage;
} i1;
};
/**
* struct vmw_ctx_binding - structure representing a single context binding
* - suitable for tracking in a context
*
* @ctx_list: List head for context.
* @bi: Binding info
*/
struct vmw_ctx_binding {
struct list_head ctx_list;
struct vmw_ctx_bindinfo bi;
};
/**
* struct vmw_ctx_binding_state - context binding state
*
* @list: linked list of individual bindings.
* @render_targets: Render target bindings.
* @texture_units: Texture units/samplers bindings.
* @shaders: Shader bindings.
*
* Note that this structure also provides storage space for the individual
* struct vmw_ctx_binding objects, so that no dynamic allocation is needed
* for individual bindings.
*
*/
struct vmw_ctx_binding_state {
struct list_head list;
struct vmw_ctx_binding render_targets[SVGA3D_RT_MAX];
struct vmw_ctx_binding texture_units[SVGA3D_NUM_TEXTURE_UNITS];
struct vmw_ctx_binding shaders[SVGA3D_SHADERTYPE_MAX];
};
struct vmw_sw_context{
struct drm_open_hash res_ht;
bool res_ht_initialized;
......@@ -266,6 +327,7 @@ struct vmw_sw_context{
struct vmw_resource *last_query_ctx;
bool needs_post_query_barrier;
struct vmw_resource *error_resource;
struct vmw_ctx_binding_state staged_bindings;
};
struct vmw_legacy_display;
......@@ -876,6 +938,9 @@ extern int vmw_context_define_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int vmw_context_binding_add(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *ci);
extern void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs);
/*
* Surface management - vmwgfx_surface.c
......
......@@ -54,6 +54,8 @@ struct vmw_resource_relocation {
* @res: Ref-counted pointer to the resource.
* @switch_backup: Boolean whether to switch backup buffer on unreserve.
* @new_backup: Refcounted pointer to the new backup buffer.
* @staged_bindings: If @res is a context, tracks bindings set up during
* the command batch. Otherwise NULL.
* @new_backup_offset: New backup buffer offset if @new_backup is non-NUll.
* @first_usage: Set to true the first time the resource is referenced in
* the command stream.
......@@ -65,6 +67,7 @@ struct vmw_resource_val_node {
struct drm_hash_item hash;
struct vmw_resource *res;
struct vmw_dma_buffer *new_backup;
struct vmw_ctx_binding_state *staged_bindings;
unsigned long new_backup_offset;
bool first_usage;
bool no_buffer_needed;
......@@ -106,6 +109,11 @@ static void vmw_resource_list_unreserve(struct list_head *list,
struct vmw_dma_buffer *new_backup =
backoff ? NULL : val->new_backup;
if (unlikely(val->staged_bindings)) {
vmw_context_binding_state_kill(val->staged_bindings);
kfree(val->staged_bindings);
val->staged_bindings = NULL;
}
vmw_resource_unreserve(res, new_backup,
val->new_backup_offset);
vmw_dmabuf_unreference(&val->new_backup);
......@@ -389,8 +397,15 @@ static int vmw_cmd_res_check(struct vmw_private *dev_priv,
struct vmw_resource_val_node *node;
int ret;
if (*id == SVGA3D_INVALID_ID)
if (*id == SVGA3D_INVALID_ID) {
if (p_val)
*p_val = NULL;
if (res_type == vmw_res_context) {
DRM_ERROR("Illegal context invalid id.\n");
return -EINVAL;
}
return 0;
}
/*
* Fastpath in case of repeated commands referencing the same
......@@ -438,6 +453,18 @@ static int vmw_cmd_res_check(struct vmw_private *dev_priv,
rcache->node = node;
if (p_val)
*p_val = node;
if (node->first_usage && res_type == vmw_res_context) {
node->staged_bindings =
kzalloc(sizeof(*node->staged_bindings), GFP_KERNEL);
if (node->staged_bindings == NULL) {
DRM_ERROR("Failed to allocate context binding "
"information.\n");
goto out_no_reloc;
}
INIT_LIST_HEAD(&node->staged_bindings->list);
}
vmw_resource_unreference(&res);
return 0;
......@@ -480,17 +507,33 @@ static int vmw_cmd_set_render_target_check(struct vmw_private *dev_priv,
SVGA3dCmdHeader header;
SVGA3dCmdSetRenderTarget body;
} *cmd;
struct vmw_resource_val_node *ctx_node;
int ret;
ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
cmd = container_of(header, struct vmw_sid_cmd, header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->body.cid,
&ctx_node);
if (unlikely(ret != 0))
return ret;
cmd = container_of(header, struct vmw_sid_cmd, header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.target.sid, NULL);
return ret;
if (unlikely(ret != 0))
return ret;
if (dev_priv->has_mob) {
struct vmw_ctx_bindinfo bi;
bi.ctx = ctx_node->res;
bi.bt = vmw_ctx_binding_rt;
bi.i1.rt_type = cmd->body.type;
return vmw_context_binding_add(ctx_node->staged_bindings, &bi);
}
return 0;
}
static int vmw_cmd_surface_copy_check(struct vmw_private *dev_priv,
......@@ -1145,15 +1188,21 @@ static int vmw_cmd_tex_state(struct vmw_private *dev_priv,
struct vmw_tex_state_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSetTextureState state;
};
} *cmd;
SVGA3dTextureState *last_state = (SVGA3dTextureState *)
((unsigned long) header + header->size + sizeof(header));
SVGA3dTextureState *cur_state = (SVGA3dTextureState *)
((unsigned long) header + sizeof(struct vmw_tex_state_cmd));
struct vmw_resource_val_node *ctx_node;
int ret;
ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
cmd = container_of(header, struct vmw_tex_state_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->state.cid,
&ctx_node);
if (unlikely(ret != 0))
return ret;
......@@ -1166,6 +1215,16 @@ static int vmw_cmd_tex_state(struct vmw_private *dev_priv,
&cur_state->value, NULL);
if (unlikely(ret != 0))
return ret;
if (dev_priv->has_mob) {
struct vmw_ctx_bindinfo bi;
bi.ctx = ctx_node->res;
bi.bt = vmw_ctx_binding_tex;
bi.i1.texture_stage = cur_state->stage;
vmw_context_binding_add(ctx_node->staged_bindings,
&bi);
}
}
return 0;
......@@ -1426,20 +1485,32 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
SVGA3dCmdHeader header;
SVGA3dCmdSetShader body;
} *cmd;
struct vmw_resource_val_node *ctx_node;
int ret;
cmd = container_of(header, struct vmw_set_shader_cmd,
header);
ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->body.cid,
&ctx_node);
if (unlikely(ret != 0))
return ret;
if (dev_priv->has_mob) {
struct vmw_ctx_bindinfo bi;
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
user_shader_converter,
&cmd->body.shid, NULL);
if (unlikely(ret != 0))
return ret;
if (dev_priv->has_mob)
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
user_shader_converter,
&cmd->body.shid, NULL);
bi.ctx = ctx_node->res;
bi.bt = vmw_ctx_binding_shader;
bi.i1.shader_type = cmd->body.type;
return vmw_context_binding_add(ctx_node->staged_bindings, &bi);
}
return 0;
}
......@@ -1820,6 +1891,8 @@ static void vmw_resource_list_unreference(struct list_head *list)
list_for_each_entry_safe(val, val_next, list, head) {
list_del_init(&val->head);
vmw_resource_unreference(&val->res);
if (unlikely(val->staged_bindings))
kfree(val->staged_bindings);
kfree(val);
}
}
......
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