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Merge tag 'vmwgfx-fixes-3.14-2014-02-05' of git://people.freedesktop.org/~thomash/linux into drm-next

Browse source 
A couple of vmwgfx fixes together with missing bits of legacy device
emulation to facilitate old user-space drivers on new devices.

The shader emulation bits are a bit large, but since they mostly touch the
new device code, regressions are unlikely. I figure the gain of having
this from the start clearly outweighs the risc of adding these bits at
this point.

Pull request of 2014-02-05

* tag 'vmwgfx-fixes-3.14-2014-02-05' of git://people.freedesktop.org/~thomash/linux:
  vmwgfx: Fix unitialized stack read in vmw_setup_otable_base
  drm/vmwgfx: Reemit context bindings when necessary v2
  drm/vmwgfx: Detect old user-space drivers and set up legacy emulation v2
  drm/vmwgfx: Emulate legacy shaders on guest-backed devices v2
  drm/vmwgfx: Fix legacy surface reference size copyback
  drm/vmwgfx: Fix SET_SHADER_CONST emulation on guest-backed devices
  drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave like reservation calls"
  drm/vmwgfx: Don't commit staged bindings if execbuf fails
This commit is contained in:
Dave Airlie 2014-02-06 12:04:31 +10:00
parent 9df5a9b02f cd9a21a831
commit 9ca5d4b4e1
10 changed files with 999 additions and 141 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
drivers/gpu/drm/vmwgfx/svga3d_reg.h
View file

@ -2583,4 +2583,28 @@ typedef union {
float f;
} SVGA3dDevCapResult;
typedef enum {
SVGA3DCAPS_RECORD_UNKNOWN = 0,
SVGA3DCAPS_RECORD_DEVCAPS_MIN = 0x100,
SVGA3DCAPS_RECORD_DEVCAPS = 0x100,
SVGA3DCAPS_RECORD_DEVCAPS_MAX = 0x1ff,
} SVGA3dCapsRecordType;
typedef
struct SVGA3dCapsRecordHeader {
uint32 length;
SVGA3dCapsRecordType type;
}
SVGA3dCapsRecordHeader;
typedef
struct SVGA3dCapsRecord {
SVGA3dCapsRecordHeader header;
uint32 data[1];
}
SVGA3dCapsRecord;
typedef uint32 SVGA3dCapPair[2];
#endif /* _SVGA3D_REG_H_ */

144
drivers/gpu/drm/vmwgfx/vmwgfx_context.c
View file

@ -37,7 +37,7 @@ struct vmw_user_context {
typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *);
typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *, bool);
static void vmw_user_context_free(struct vmw_resource *res);
static struct vmw_resource *
@ -50,9 +50,11 @@ 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 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;
@ -111,10 +113,14 @@ static void vmw_hw_context_destroy(struct vmw_resource *res)
if (res->func->destroy == vmw_gb_context_destroy) {
mutex_lock(&dev_priv->cmdbuf_mutex);
mutex_lock(&dev_priv->binding_mutex);
(void) vmw_context_binding_state_kill
(&container_of(res, struct vmw_user_context, res)->cbs);
(void) vmw_gb_context_destroy(res);
if (dev_priv->pinned_bo != NULL &&
!dev_priv->query_cid_valid)
__vmw_execbuf_release_pinned_bo(dev_priv, NULL);
mutex_unlock(&dev_priv->binding_mutex);
mutex_unlock(&dev_priv->cmdbuf_mutex);
return;
}
@ -328,7 +334,7 @@ static int vmw_gb_context_unbind(struct vmw_resource *res,
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_state_kill(&uctx->cbs);
vmw_context_binding_state_scrub(&uctx->cbs);
submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0);
@ -378,10 +384,6 @@ static int vmw_gb_context_destroy(struct vmw_resource *res)
SVGA3dCmdHeader header;
SVGA3dCmdDestroyGBContext body;
} *cmd;
struct vmw_user_context *uctx =
container_of(res, struct vmw_user_context, res);
BUG_ON(!list_empty(&uctx->cbs.list));
if (likely(res->id == -1))
return 0;
@ -528,8 +530,9 @@ out_unlock:
* 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)
static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
@ -548,7 +551,8 @@ static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi)
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;
cmd->body.shid =
cpu_to_le32((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
@ -559,8 +563,10 @@ static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi)
* 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)
static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi,
bool rebind)
{
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
@ -579,7 +585,8 @@ static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi)
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.sid =
cpu_to_le32((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
cmd->body.target.face = 0;
cmd->body.target.mipmap = 0;
vmw_fifo_commit(dev_priv, sizeof(*cmd));
@ -591,11 +598,13 @@ static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi)
* 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)
static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi,
bool rebind)
{
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
@ -619,7 +628,8 @@ static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi)
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;
cmd->body.s1.value =
cpu_to_le32((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
return 0;
@ -692,6 +702,7 @@ int vmw_context_binding_add(struct vmw_ctx_binding_state *cbs,
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);
@ -727,12 +738,11 @@ static void vmw_context_binding_transfer(struct vmw_ctx_binding_state *cbs,
if (loc->bi.ctx != NULL)
vmw_context_binding_drop(loc);
loc->bi = *bi;
list_add_tail(&loc->ctx_list, &cbs->list);
if (bi->res != NULL)
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);
else
INIT_LIST_HEAD(&loc->res_list);
}
}
/**
@ -746,7 +756,10 @@ static void vmw_context_binding_transfer(struct vmw_ctx_binding_state *cbs,
*/
static void vmw_context_binding_kill(struct vmw_ctx_binding *cb)
{
(void) vmw_scrub_funcs[cb->bi.bt](&cb->bi);
if (!cb->bi.scrubbed) {
(void) vmw_scrub_funcs[cb->bi.bt](&cb->bi, false);
cb->bi.scrubbed = true;
}
vmw_context_binding_drop(cb);
}
@ -767,6 +780,27 @@ static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs)
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
@ -784,6 +818,27 @@ void vmw_context_binding_res_list_kill(struct list_head *head)
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
*
@ -803,3 +858,50 @@ void vmw_context_binding_state_transfer(struct vmw_resource *ctx,
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);
}

7
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
View file

@ -941,6 +941,7 @@ static void vmw_postclose(struct drm_device *dev,
drm_master_put(&vmw_fp->locked_master);
}
vmw_compat_shader_man_destroy(vmw_fp->shman);
ttm_object_file_release(&vmw_fp->tfile);
kfree(vmw_fp);
}
@ -960,11 +961,17 @@ static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
if (unlikely(vmw_fp->tfile == NULL))
goto out_no_tfile;
vmw_fp->shman = vmw_compat_shader_man_create(dev_priv);
if (IS_ERR(vmw_fp->shman))
goto out_no_shman;
file_priv->driver_priv = vmw_fp;
dev_priv->bdev.dev_mapping = dev->dev_mapping;
return 0;
out_no_shman:
ttm_object_file_release(&vmw_fp->tfile);
out_no_tfile:
kfree(vmw_fp);
return ret;

35
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
View file

@ -75,10 +75,14 @@
#define VMW_RES_FENCE ttm_driver_type3
#define VMW_RES_SHADER ttm_driver_type4
struct vmw_compat_shader_manager;
struct vmw_fpriv {
struct drm_master *locked_master;
struct ttm_object_file *tfile;
struct list_head fence_events;
bool gb_aware;
struct vmw_compat_shader_manager *shman;
};
struct vmw_dma_buffer {
@ -272,6 +276,7 @@ struct vmw_ctx_bindinfo {
struct vmw_resource *ctx;
struct vmw_resource *res;
enum vmw_ctx_binding_type bt;
bool scrubbed;
union {
SVGA3dShaderType shader_type;
SVGA3dRenderTargetType rt_type;
@ -318,7 +323,7 @@ struct vmw_sw_context{
struct drm_open_hash res_ht;
bool res_ht_initialized;
bool kernel; /**< is the called made from the kernel */
struct ttm_object_file *tfile;
struct vmw_fpriv *fp;
struct list_head validate_nodes;
struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
uint32_t cur_reloc;
@ -336,6 +341,7 @@ struct vmw_sw_context{
bool needs_post_query_barrier;
struct vmw_resource *error_resource;
struct vmw_ctx_binding_state staged_bindings;
struct list_head staged_shaders;
};
struct vmw_legacy_display;
@ -569,6 +575,8 @@ struct vmw_user_resource_conv;
extern void vmw_resource_unreference(struct vmw_resource **p_res);
extern struct vmw_resource *vmw_resource_reference(struct vmw_resource *res);
extern struct vmw_resource *
vmw_resource_reference_unless_doomed(struct vmw_resource *res);
extern int vmw_resource_validate(struct vmw_resource *res);
extern int vmw_resource_reserve(struct vmw_resource *res, bool no_backup);
extern bool vmw_resource_needs_backup(const struct vmw_resource *res);
@ -957,6 +965,9 @@ extern void
vmw_context_binding_state_transfer(struct vmw_resource *res,
struct vmw_ctx_binding_state *cbs);
extern void vmw_context_binding_res_list_kill(struct list_head *head);
extern void vmw_context_binding_res_list_scrub(struct list_head *head);
extern int vmw_context_rebind_all(struct vmw_resource *ctx);
extern struct list_head *vmw_context_binding_list(struct vmw_resource *ctx);
/*
* Surface management - vmwgfx_surface.c
@ -991,6 +1002,28 @@ extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int vmw_compat_shader_lookup(struct vmw_compat_shader_manager *man,
SVGA3dShaderType shader_type,
u32 *user_key);
extern void vmw_compat_shaders_commit(struct vmw_compat_shader_manager *man,
struct list_head *list);
extern void vmw_compat_shaders_revert(struct vmw_compat_shader_manager *man,
struct list_head *list);
extern int vmw_compat_shader_remove(struct vmw_compat_shader_manager *man,
u32 user_key,
SVGA3dShaderType shader_type,
struct list_head *list);
extern int vmw_compat_shader_add(struct vmw_compat_shader_manager *man,
u32 user_key, const void *bytecode,
SVGA3dShaderType shader_type,
size_t size,
struct ttm_object_file *tfile,
struct list_head *list);
extern struct vmw_compat_shader_manager *
vmw_compat_shader_man_create(struct vmw_private *dev_priv);
extern void
vmw_compat_shader_man_destroy(struct vmw_compat_shader_manager *man);
/**
* Inline helper functions

328
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
View file

@ -114,8 +114,10 @@ static void vmw_resource_list_unreserve(struct list_head *list,
* persistent context binding tracker.
*/
if (unlikely(val->staged_bindings)) {
vmw_context_binding_state_transfer
(val->res, val->staged_bindings);
if (!backoff) {
vmw_context_binding_state_transfer
(val->res, val->staged_bindings);
}
kfree(val->staged_bindings);
val->staged_bindings = NULL;
}
@ -177,6 +179,44 @@ static int vmw_resource_val_add(struct vmw_sw_context *sw_context,
return 0;
}
/**
* vmw_resource_context_res_add - Put resources previously bound to a context on
* the validation list
*
* @dev_priv: Pointer to a device private structure
* @sw_context: Pointer to a software context used for this command submission
* @ctx: Pointer to the context resource
*
* This function puts all resources that were previously bound to @ctx on
* the resource validation list. This is part of the context state reemission
*/
static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
struct vmw_resource *ctx)
{
struct list_head *binding_list;
struct vmw_ctx_binding *entry;
int ret = 0;
struct vmw_resource *res;
mutex_lock(&dev_priv->binding_mutex);
binding_list = vmw_context_binding_list(ctx);
list_for_each_entry(entry, binding_list, ctx_list) {
res = vmw_resource_reference_unless_doomed(entry->bi.res);
if (unlikely(res == NULL))
continue;
ret = vmw_resource_val_add(sw_context, entry->bi.res, NULL);
vmw_resource_unreference(&res);
if (unlikely(ret != 0))
break;
}
mutex_unlock(&dev_priv->binding_mutex);
return ret;
}
/**
* vmw_resource_relocation_add - Add a relocation to the relocation list
*
@ -233,8 +273,12 @@ static void vmw_resource_relocations_apply(uint32_t *cb,
{
struct vmw_resource_relocation *rel;
list_for_each_entry(rel, list, head)
cb[rel->offset] = rel->res->id;
list_for_each_entry(rel, list, head) {
if (likely(rel->res != NULL))
cb[rel->offset] = rel->res->id;
else
cb[rel->offset] = SVGA_3D_CMD_NOP;
}
}
static int vmw_cmd_invalid(struct vmw_private *dev_priv,
@ -379,22 +423,27 @@ static int vmw_resources_validate(struct vmw_sw_context *sw_context)
}
/**
* vmw_cmd_res_check - Check that a resource is present and if so, put it
* vmw_cmd_compat_res_check - Check that a resource is present and if so, put it
* on the resource validate list unless it's already there.
*
* @dev_priv: Pointer to a device private structure.
* @sw_context: Pointer to the software context.
* @res_type: Resource type.
* @converter: User-space visisble type specific information.
* @id: Pointer to the location in the command buffer currently being
* @id: user-space resource id handle.
* @id_loc: Pointer to the location in the command buffer currently being
* parsed from where the user-space resource id handle is located.
* @p_val: Pointer to pointer to resource validalidation node. Populated
* on exit.
*/
static int vmw_cmd_res_check(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
enum vmw_res_type res_type,
const struct vmw_user_resource_conv *converter,
uint32_t *id,
struct vmw_resource_val_node **p_val)
static int
vmw_cmd_compat_res_check(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
enum vmw_res_type res_type,
const struct vmw_user_resource_conv *converter,
uint32_t id,
uint32_t *id_loc,
struct vmw_resource_val_node **p_val)
{
struct vmw_res_cache_entry *rcache =
&sw_context->res_cache[res_type];
@ -402,7 +451,7 @@ 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) {
@ -417,7 +466,7 @@ static int vmw_cmd_res_check(struct vmw_private *dev_priv,
* resource
*/
if (likely(rcache->valid && *id == rcache->handle)) {
if (likely(rcache->valid && id == rcache->handle)) {
const struct vmw_resource *res = rcache->res;
rcache->node->first_usage = false;
@ -426,28 +475,28 @@ static int vmw_cmd_res_check(struct vmw_private *dev_priv,
return vmw_resource_relocation_add
(&sw_context->res_relocations, res,
id - sw_context->buf_start);
id_loc - sw_context->buf_start);
}
ret = vmw_user_resource_lookup_handle(dev_priv,
sw_context->tfile,
*id,
sw_context->fp->tfile,
id,
converter,
&res);
if (unlikely(ret != 0)) {
DRM_ERROR("Could not find or use resource 0x%08x.\n",
(unsigned) *id);
(unsigned) id);
dump_stack();
return ret;
}
rcache->valid = true;
rcache->res = res;
rcache->handle = *id;
rcache->handle = id;
ret = vmw_resource_relocation_add(&sw_context->res_relocations,
res,
id - sw_context->buf_start);
id_loc - sw_context->buf_start);
if (unlikely(ret != 0))
goto out_no_reloc;
@ -459,7 +508,11 @@ static int vmw_cmd_res_check(struct vmw_private *dev_priv,
if (p_val)
*p_val = node;
if (node->first_usage && res_type == vmw_res_context) {
if (dev_priv->has_mob && node->first_usage &&
res_type == vmw_res_context) {
ret = vmw_resource_context_res_add(dev_priv, sw_context, res);
if (unlikely(ret != 0))
goto out_no_reloc;
node->staged_bindings =
kzalloc(sizeof(*node->staged_bindings), GFP_KERNEL);
if (node->staged_bindings == NULL) {
@ -480,6 +533,59 @@ out_no_reloc:
return ret;
}
/**
* vmw_cmd_res_check - Check that a resource is present and if so, put it
* on the resource validate list unless it's already there.
*
* @dev_priv: Pointer to a device private structure.
* @sw_context: Pointer to the software context.
* @res_type: Resource type.
* @converter: User-space visisble type specific information.
* @id_loc: Pointer to the location in the command buffer currently being
* parsed from where the user-space resource id handle is located.
* @p_val: Pointer to pointer to resource validalidation node. Populated
* on exit.
*/
static int
vmw_cmd_res_check(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
enum vmw_res_type res_type,
const struct vmw_user_resource_conv *converter,
uint32_t *id_loc,
struct vmw_resource_val_node **p_val)
{
return vmw_cmd_compat_res_check(dev_priv, sw_context, res_type,
converter, *id_loc, id_loc, p_val);
}
/**
* vmw_rebind_contexts - Rebind all resources previously bound to
* referenced contexts.
*
* @sw_context: Pointer to the software context.
*
* Rebind context binding points that have been scrubbed because of eviction.
*/
static int vmw_rebind_contexts(struct vmw_sw_context *sw_context)
{
struct vmw_resource_val_node *val;
int ret;
list_for_each_entry(val, &sw_context->resource_list, head) {
if (likely(!val->staged_bindings))
continue;
ret = vmw_context_rebind_all(val->res);
if (unlikely(ret != 0)) {
if (ret != -ERESTARTSYS)
DRM_ERROR("Failed to rebind context.\n");
return ret;
}
}
return 0;
}
/**
* vmw_cmd_cid_check - Check a command header for valid context information.
*
@ -767,7 +873,7 @@ static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
struct vmw_relocation *reloc;
int ret;
ret = vmw_user_dmabuf_lookup(sw_context->tfile, handle, &vmw_bo);
ret = vmw_user_dmabuf_lookup(sw_context->fp->tfile, handle, &vmw_bo);
if (unlikely(ret != 0)) {
DRM_ERROR("Could not find or use MOB buffer.\n");
return -EINVAL;
@ -828,7 +934,7 @@ static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
struct vmw_relocation *reloc;
int ret;
ret = vmw_user_dmabuf_lookup(sw_context->tfile, handle, &vmw_bo);
ret = vmw_user_dmabuf_lookup(sw_context->fp->tfile, handle, &vmw_bo);
if (unlikely(ret != 0)) {
DRM_ERROR("Could not find or use GMR region.\n");
return -EINVAL;
@ -1127,7 +1233,8 @@ static int vmw_cmd_dma(struct vmw_private *dev_priv,
srf = vmw_res_to_srf(sw_context->res_cache[vmw_res_surface].res);
vmw_kms_cursor_snoop(srf, sw_context->tfile, &vmw_bo->base, header);
vmw_kms_cursor_snoop(srf, sw_context->fp->tfile, &vmw_bo->base,
header);
out_no_surface:
vmw_dmabuf_unreference(&vmw_bo);
@ -1478,6 +1585,98 @@ static int vmw_cmd_invalidate_gb_surface(struct vmw_private *dev_priv,
&cmd->body.sid, NULL);
}
/**
* vmw_cmd_shader_define - Validate an SVGA_3D_CMD_SHADER_DEFINE
* command
*
* @dev_priv: Pointer to a device private struct.
* @sw_context: The software context being used for this batch.
* @header: Pointer to the command header in the command stream.
*/
static int vmw_cmd_shader_define(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
SVGA3dCmdHeader *header)
{
struct vmw_shader_define_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDefineShader body;
} *cmd;
int ret;
size_t size;
cmd = container_of(header, struct vmw_shader_define_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->body.cid,
NULL);
if (unlikely(ret != 0))
return ret;
if (unlikely(!dev_priv->has_mob))
return 0;
size = cmd->header.size - sizeof(cmd->body);
ret = vmw_compat_shader_add(sw_context->fp->shman,
cmd->body.shid, cmd + 1,
cmd->body.type, size,
sw_context->fp->tfile,
&sw_context->staged_shaders);
if (unlikely(ret != 0))
return ret;
return vmw_resource_relocation_add(&sw_context->res_relocations,
NULL, &cmd->header.id -
sw_context->buf_start);
return 0;
}
/**
* vmw_cmd_shader_destroy - Validate an SVGA_3D_CMD_SHADER_DESTROY
* command
*
* @dev_priv: Pointer to a device private struct.
* @sw_context: The software context being used for this batch.
* @header: Pointer to the command header in the command stream.
*/
static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
SVGA3dCmdHeader *header)
{
struct vmw_shader_destroy_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDestroyShader body;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_shader_destroy_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->body.cid,
NULL);
if (unlikely(ret != 0))
return ret;
if (unlikely(!dev_priv->has_mob))
return 0;
ret = vmw_compat_shader_remove(sw_context->fp->shman,
cmd->body.shid,
cmd->body.type,
&sw_context->staged_shaders);
if (unlikely(ret != 0))
return ret;
return vmw_resource_relocation_add(&sw_context->res_relocations,
NULL, &cmd->header.id -
sw_context->buf_start);
return 0;
}
/**
* vmw_cmd_set_shader - Validate an SVGA_3D_CMD_SET_SHADER
* command
@ -1509,10 +1708,18 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
if (dev_priv->has_mob) {
struct vmw_ctx_bindinfo bi;
struct vmw_resource_val_node *res_node;
u32 shid = cmd->body.shid;
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
user_shader_converter,
&cmd->body.shid, &res_node);
if (shid != SVGA3D_INVALID_ID)
(void) vmw_compat_shader_lookup(sw_context->fp->shman,
cmd->body.type,
&shid);
ret = vmw_cmd_compat_res_check(dev_priv, sw_context,
vmw_res_shader,
user_shader_converter,
shid,
&cmd->body.shid, &res_node);
if (unlikely(ret != 0))
return ret;
@ -1526,6 +1733,39 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
return 0;
}
/**
* vmw_cmd_set_shader_const - Validate an SVGA_3D_CMD_SET_SHADER_CONST
* command
*
* @dev_priv: Pointer to a device private struct.
* @sw_context: The software context being used for this batch.
* @header: Pointer to the command header in the command stream.
*/
static int vmw_cmd_set_shader_const(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context,
SVGA3dCmdHeader *header)
{
struct vmw_set_shader_const_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSetShaderConst body;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_set_shader_const_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->body.cid,
NULL);
if (unlikely(ret != 0))
return ret;
if (dev_priv->has_mob)
header->id = SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE;
return 0;
}
/**
* vmw_cmd_bind_gb_shader - Validate an SVGA_3D_CMD_BIND_GB_SHADER
* command
@ -1634,14 +1874,14 @@ static const struct vmw_cmd_entry const vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
true, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_PRESENT, &vmw_cmd_present_check,
false, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_cid_check,
true, true, false),
VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_cid_check,
true, true, false),
VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_shader_define,
true, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_shader_destroy,
true, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER, &vmw_cmd_set_shader,
true, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_cid_check,
true, true, false),
VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_set_shader_const,
true, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw,
true, false, false),
VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check,
@ -2171,7 +2411,7 @@ int vmw_execbuf_process(struct drm_file *file_priv,
} else
sw_context->kernel = true;
sw_context->tfile = vmw_fpriv(file_priv)->tfile;
sw_context->fp = vmw_fpriv(file_priv);
sw_context->cur_reloc = 0;
sw_context->cur_val_buf = 0;
sw_context->fence_flags = 0;
@ -2188,16 +2428,17 @@ int vmw_execbuf_process(struct drm_file *file_priv,
goto out_unlock;
sw_context->res_ht_initialized = true;
}
INIT_LIST_HEAD(&sw_context->staged_shaders);
INIT_LIST_HEAD(&resource_list);
ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands,
command_size);
if (unlikely(ret != 0))
goto out_err;
goto out_err_nores;
ret = vmw_resources_reserve(sw_context);
if (unlikely(ret != 0))
goto out_err;
goto out_err_nores;
ret = ttm_eu_reserve_buffers(&ticket, &sw_context->validate_nodes);
if (unlikely(ret != 0))
@ -2225,6 +2466,12 @@ int vmw_execbuf_process(struct drm_file *file_priv,
goto out_err;
}
if (dev_priv->has_mob) {
ret = vmw_rebind_contexts(sw_context);
if (unlikely(ret != 0))
goto out_err;
}
cmd = vmw_fifo_reserve(dev_priv, command_size);
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving fifo space for commands.\n");
@ -2276,6 +2523,8 @@ int vmw_execbuf_process(struct drm_file *file_priv,
}
list_splice_init(&sw_context->resource_list, &resource_list);
vmw_compat_shaders_commit(sw_context->fp->shman,
&sw_context->staged_shaders);
mutex_unlock(&dev_priv->cmdbuf_mutex);
/*
@ -2289,10 +2538,11 @@ int vmw_execbuf_process(struct drm_file *file_priv,
out_unlock_binding:
mutex_unlock(&dev_priv->binding_mutex);
out_err:
ttm_eu_backoff_reservation(&ticket, &sw_context->validate_nodes);
out_err_nores:
vmw_resource_list_unreserve(&sw_context->resource_list, true);
vmw_resource_relocations_free(&sw_context->res_relocations);
vmw_free_relocations(sw_context);
ttm_eu_backoff_reservation(&ticket, &sw_context->validate_nodes);
vmw_resource_list_unreserve(&sw_context->resource_list, true);
vmw_clear_validations(sw_context);
if (unlikely(dev_priv->pinned_bo != NULL &&
!dev_priv->query_cid_valid))
@ -2301,6 +2551,8 @@ out_unlock:
list_splice_init(&sw_context->resource_list, &resource_list);
error_resource = sw_context->error_resource;
sw_context->error_resource = NULL;
vmw_compat_shaders_revert(sw_context->fp->shman,
&sw_context->staged_shaders);
mutex_unlock(&dev_priv->cmdbuf_mutex);
/*

93
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
View file

@ -29,12 +29,18 @@
#include <drm/vmwgfx_drm.h>
#include "vmwgfx_kms.h"
struct svga_3d_compat_cap {
SVGA3dCapsRecordHeader header;
SVGA3dCapPair pairs[SVGA3D_DEVCAP_MAX];
};
int vmw_getparam_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_getparam_arg *param =
(struct drm_vmw_getparam_arg *)data;
struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
switch (param->param) {
case DRM_VMW_PARAM_NUM_STREAMS:
@ -60,6 +66,11 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
const struct vmw_fifo_state *fifo = &dev_priv->fifo;
if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) {
param->value = SVGA3D_HWVERSION_WS8_B1;
break;
}
param->value =
ioread32(fifo_mem +
((fifo->capabilities &
@ -69,17 +80,26 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
break;
}
case DRM_VMW_PARAM_MAX_SURF_MEMORY:
param->value = dev_priv->memory_size;
if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
!vmw_fp->gb_aware)
param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2;
else
param->value = dev_priv->memory_size;
break;
case DRM_VMW_PARAM_3D_CAPS_SIZE:
if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
param->value = SVGA3D_DEVCAP_MAX;
if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
vmw_fp->gb_aware)
param->value = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
else if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
param->value = sizeof(struct svga_3d_compat_cap) +
sizeof(uint32_t);
else
param->value = (SVGA_FIFO_3D_CAPS_LAST -
SVGA_FIFO_3D_CAPS + 1);
param->value *= sizeof(uint32_t);
SVGA_FIFO_3D_CAPS + 1) *
sizeof(uint32_t);
break;
case DRM_VMW_PARAM_MAX_MOB_MEMORY:
vmw_fp->gb_aware = true;
param->value = dev_priv->max_mob_pages * PAGE_SIZE;
break;
default:
@ -91,6 +111,38 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
return 0;
}
static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
size_t size)
{
struct svga_3d_compat_cap *compat_cap =
(struct svga_3d_compat_cap *) bounce;
unsigned int i;
size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
unsigned int max_size;
if (size < pair_offset)
return -EINVAL;
max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
if (max_size > SVGA3D_DEVCAP_MAX)
max_size = SVGA3D_DEVCAP_MAX;
compat_cap->header.length =
(pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
mutex_lock(&dev_priv->hw_mutex);
for (i = 0; i < max_size; ++i) {
vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
compat_cap->pairs[i][0] = i;
compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
}
mutex_unlock(&dev_priv->hw_mutex);
return 0;
}
int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
@ -104,41 +156,49 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
void *bounce;
int ret;
bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
if (unlikely(arg->pad64 != 0)) {
DRM_ERROR("Illegal GET_3D_CAP argument.\n");
return -EINVAL;
}
if (gb_objects)
size = SVGA3D_DEVCAP_MAX;
if (gb_objects && vmw_fp->gb_aware)
size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
else if (gb_objects)
size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
else
size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1);
size *= sizeof(uint32_t);
size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
sizeof(uint32_t);
if (arg->max_size < size)
size = arg->max_size;
bounce = vmalloc(size);
bounce = vzalloc(size);
if (unlikely(bounce == NULL)) {
DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
return -ENOMEM;
}
if (gb_objects) {
int i;
if (gb_objects && vmw_fp->gb_aware) {
int i, num;
uint32_t *bounce32 = (uint32_t *) bounce;
num = size / sizeof(uint32_t);
if (num > SVGA3D_DEVCAP_MAX)
num = SVGA3D_DEVCAP_MAX;
mutex_lock(&dev_priv->hw_mutex);
for (i = 0; i < SVGA3D_DEVCAP_MAX; ++i) {
for (i = 0; i < num; ++i) {
vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
*bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
}
mutex_unlock(&dev_priv->hw_mutex);
} else if (gb_objects) {
ret = vmw_fill_compat_cap(dev_priv, bounce, size);
if (unlikely(ret != 0))
goto out_err;
} else {
fifo_mem = dev_priv->mmio_virt;
memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
}
@ -146,6 +206,7 @@ int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
ret = copy_to_user(buffer, bounce, size);
if (ret)
ret = -EFAULT;
out_err:
vfree(bounce);
if (unlikely(ret != 0))

1
drivers/gpu/drm/vmwgfx/vmwgfx_mob.c
View file

@ -134,6 +134,7 @@ static int vmw_setup_otable_base(struct vmw_private *dev_priv,
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
DRM_ERROR("Failed reserving FIFO space for OTable setup.\n");
ret = -ENOMEM;
goto out_no_fifo;
}

11
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
View file

@ -88,6 +88,11 @@ struct vmw_resource *vmw_resource_reference(struct vmw_resource *res)
return res;
}
struct vmw_resource *
vmw_resource_reference_unless_doomed(struct vmw_resource *res)
{
return kref_get_unless_zero(&res->kref) ? res : NULL;
}
/**
* vmw_resource_release_id - release a resource id to the id manager.
@ -136,8 +141,12 @@ static void vmw_resource_release(struct kref *kref)
vmw_dmabuf_unreference(&res->backup);
}
if (likely(res->hw_destroy != NULL))
if (likely(res->hw_destroy != NULL)) {
res->hw_destroy(res);
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_res_list_kill(&res->binding_head);
mutex_unlock(&dev_priv->binding_mutex);
}
id = res->id;
if (res->res_free != NULL)

491
drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
View file

@ -29,6 +29,8 @@
#include "vmwgfx_resource_priv.h"
#include "ttm/ttm_placement.h"
#define VMW_COMPAT_SHADER_HT_ORDER 12
struct vmw_shader {
struct vmw_resource res;
SVGA3dShaderType type;
@ -40,6 +42,50 @@ struct vmw_user_shader {
struct vmw_shader shader;
};
/**
* enum vmw_compat_shader_state - Staging state for compat shaders
*/
enum vmw_compat_shader_state {
VMW_COMPAT_COMMITED,
VMW_COMPAT_ADD,
VMW_COMPAT_DEL
};
/**
* struct vmw_compat_shader - Metadata for compat shaders.
*
* @handle: The TTM handle of the guest backed shader.
* @tfile: The struct ttm_object_file the guest backed shader is registered
* with.
* @hash: Hash item for lookup.
* @head: List head for staging lists or the compat shader manager list.
* @state: Staging state.
*
* The structure is protected by the cmdbuf lock.
*/
struct vmw_compat_shader {
u32 handle;
struct ttm_object_file *tfile;
struct drm_hash_item hash;
struct list_head head;
enum vmw_compat_shader_state state;
};
/**
* struct vmw_compat_shader_manager - Compat shader manager.
*
* @shaders: Hash table containing staged and commited compat shaders
* @list: List of commited shaders.
* @dev_priv: Pointer to a device private structure.
*
* @shaders and @list are protected by the cmdbuf mutex for now.
*/
struct vmw_compat_shader_manager {
struct drm_open_hash shaders;
struct list_head list;
struct vmw_private *dev_priv;
};
static void vmw_user_shader_free(struct vmw_resource *res);
static struct vmw_resource *
vmw_user_shader_base_to_res(struct ttm_base_object *base);
@ -258,7 +304,7 @@ static int vmw_gb_shader_destroy(struct vmw_resource *res)
return 0;
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_res_list_kill(&res->binding_head);
vmw_context_binding_res_list_scrub(&res->binding_head);
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {
@ -325,13 +371,81 @@ int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data,
TTM_REF_USAGE);
}
int vmw_shader_alloc(struct vmw_private *dev_priv,
struct vmw_dma_buffer *buffer,
size_t shader_size,
size_t offset,
SVGA3dShaderType shader_type,
struct ttm_object_file *tfile,
u32 *handle)
{
struct vmw_user_shader *ushader;
struct vmw_resource *res, *tmp;
int ret;
/*
* 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(struct vmw_user_shader)) + 128;
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;
}
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;
}
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, shader_size,
offset, shader_type, buffer,
vmw_user_shader_free);
if (unlikely(ret != 0))
goto out;
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;
}
if (handle)
*handle = ushader->base.hash.key;
out_err:
vmw_resource_unreference(&res);
out:
return ret;
}
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;
@ -373,69 +487,324 @@ int vmw_shader_define_ioctl(struct drm_device *dev, void *data,
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;
goto out_bad_arg;
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;
}
ret = vmw_shader_alloc(dev_priv, buffer, arg->size, arg->offset,
shader_type, tfile, &arg->shader_handle);
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;
}
/**
* vmw_compat_shader_lookup - Look up a compat shader
*
* @man: Pointer to the compat shader manager.
* @shader_type: The shader type, that combined with the user_key identifies
* the shader.
* @user_key: On entry, this should be a pointer to the user_key.
* On successful exit, it will contain the guest-backed shader's TTM handle.
*
* Returns 0 on success. Non-zero on failure, in which case the value pointed
* to by @user_key is unmodified.
*/
int vmw_compat_shader_lookup(struct vmw_compat_shader_manager *man,
SVGA3dShaderType shader_type,
u32 *user_key)
{
struct drm_hash_item *hash;
int ret;
unsigned long key = *user_key | (shader_type << 24);
ret = drm_ht_find_item(&man->shaders, key, &hash);
if (unlikely(ret != 0))
return ret;
*user_key = drm_hash_entry(hash, struct vmw_compat_shader,
hash)->handle;
return 0;
}
/**
* vmw_compat_shader_free - Free a compat shader.
*
* @man: Pointer to the compat shader manager.
* @entry: Pointer to a struct vmw_compat_shader.
*
* Frees a struct vmw_compat_shder entry and drops its reference to the
* guest backed shader.
*/
static void vmw_compat_shader_free(struct vmw_compat_shader_manager *man,
struct vmw_compat_shader *entry)
{
list_del(&entry->head);
WARN_ON(drm_ht_remove_item(&man->shaders, &entry->hash));
WARN_ON(ttm_ref_object_base_unref(entry->tfile, entry->handle,
TTM_REF_USAGE));
kfree(entry);
}
/**
* vmw_compat_shaders_commit - Commit a list of compat shader actions.
*
* @man: Pointer to the compat shader manager.
* @list: Caller's list of compat shader actions.
*
* This function commits a list of compat shader additions or removals.
* It is typically called when the execbuf ioctl call triggering these
* actions has commited the fifo contents to the device.
*/
void vmw_compat_shaders_commit(struct vmw_compat_shader_manager *man,
struct list_head *list)
{
struct vmw_compat_shader *entry, *next;
list_for_each_entry_safe(entry, next, list, head) {
list_del(&entry->head);
switch (entry->state) {
case VMW_COMPAT_ADD:
entry->state = VMW_COMPAT_COMMITED;
list_add_tail(&entry->head, &man->list);
break;
case VMW_COMPAT_DEL:
ttm_ref_object_base_unref(entry->tfile, entry->handle,
TTM_REF_USAGE);
kfree(entry);
break;
default:
BUG();
break;
}
}
}
/**
* vmw_compat_shaders_revert - Revert a list of compat shader actions
*
* @man: Pointer to the compat shader manager.
* @list: Caller's list of compat shader actions.
*
* This function reverts a list of compat shader additions or removals.
* It is typically called when the execbuf ioctl call triggering these
* actions failed for some reason, and the command stream was never
* submitted.
*/
void vmw_compat_shaders_revert(struct vmw_compat_shader_manager *man,
struct list_head *list)
{
struct vmw_compat_shader *entry, *next;
int ret;
list_for_each_entry_safe(entry, next, list, head) {
switch (entry->state) {
case VMW_COMPAT_ADD:
vmw_compat_shader_free(man, entry);
break;
case VMW_COMPAT_DEL:
ret = drm_ht_insert_item(&man->shaders, &entry->hash);
list_del(&entry->head);
list_add_tail(&entry->head, &man->list);
entry->state = VMW_COMPAT_COMMITED;
break;
default:
BUG();
break;
}
}
}
/**
* vmw_compat_shader_remove - Stage a compat shader for removal.
*
* @man: Pointer to the compat shader manager
* @user_key: The key that is used to identify the shader. The key is
* unique to the shader type.
* @shader_type: Shader type.
* @list: Caller's list of staged shader actions.
*
* This function stages a compat shader for removal and removes the key from
* the shader manager's hash table. If the shader was previously only staged
* for addition it is completely removed (But the execbuf code may keep a
* reference if it was bound to a context between addition and removal). If
* it was previously commited to the manager, it is staged for removal.
*/
int vmw_compat_shader_remove(struct vmw_compat_shader_manager *man,
u32 user_key, SVGA3dShaderType shader_type,
struct list_head *list)
{
struct vmw_compat_shader *entry;
struct drm_hash_item *hash;
int ret;
ret = drm_ht_find_item(&man->shaders, user_key | (shader_type << 24),
&hash);
if (likely(ret != 0))
return -EINVAL;
entry = drm_hash_entry(hash, struct vmw_compat_shader, hash);
switch (entry->state) {
case VMW_COMPAT_ADD:
vmw_compat_shader_free(man, entry);
break;
case VMW_COMPAT_COMMITED:
(void) drm_ht_remove_item(&man->shaders, &entry->hash);
list_del(&entry->head);
entry->state = VMW_COMPAT_DEL;
list_add_tail(&entry->head, list);
break;
default:
BUG();
break;
}
return 0;
}
/**
* vmw_compat_shader_add - Create a compat shader and add the
* key to the manager
*
* @man: Pointer to the compat shader manager
* @user_key: The key that is used to identify the shader. The key is
* unique to the shader type.
* @bytecode: Pointer to the bytecode of the shader.
* @shader_type: Shader type.
* @tfile: Pointer to a struct ttm_object_file that the guest-backed shader is
* to be created with.
* @list: Caller's list of staged shader actions.
*
* Note that only the key is added to the shader manager's hash table.
* The shader is not yet added to the shader manager's list of shaders.
*/
int vmw_compat_shader_add(struct vmw_compat_shader_manager *man,
u32 user_key, const void *bytecode,
SVGA3dShaderType shader_type,
size_t size,
struct ttm_object_file *tfile,
struct list_head *list)
{
struct vmw_dma_buffer *buf;
struct ttm_bo_kmap_obj map;
bool is_iomem;
struct vmw_compat_shader *compat;
u32 handle;
int ret;
if (user_key > ((1 << 24) - 1) || (unsigned) shader_type > 16)
return -EINVAL;
/* Allocate and pin a DMA buffer */
buf = kzalloc(sizeof(*buf), GFP_KERNEL);
if (unlikely(buf == NULL))
return -ENOMEM;
ret = vmw_dmabuf_init(man->dev_priv, buf, size, &vmw_sys_ne_placement,
true, vmw_dmabuf_bo_free);
if (unlikely(ret != 0))
goto out;
ret = ttm_bo_reserve(&buf->base, false, true, false, NULL);
if (unlikely(ret != 0))
goto no_reserve;
/* Map and copy shader bytecode. */
ret = ttm_bo_kmap(&buf->base, 0, PAGE_ALIGN(size) >> PAGE_SHIFT,
&map);
if (unlikely(ret != 0)) {
ttm_bo_unreserve(&buf->base);
goto no_reserve;
}
memcpy(ttm_kmap_obj_virtual(&map, &is_iomem), bytecode, size);
WARN_ON(is_iomem);
ttm_bo_kunmap(&map);
ret = ttm_bo_validate(&buf->base, &vmw_sys_placement, false, true);
WARN_ON(ret != 0);
ttm_bo_unreserve(&buf->base);
/* Create a guest-backed shader container backed by the dma buffer */
ret = vmw_shader_alloc(man->dev_priv, buf, size, 0, shader_type,
tfile, &handle);
vmw_dmabuf_unreference(&buf);
if (unlikely(ret != 0))
goto no_reserve;
/*
* Create a compat shader structure and stage it for insertion
* in the manager
*/
compat = kzalloc(sizeof(*compat), GFP_KERNEL);
if (compat == NULL)
goto no_compat;
compat->hash.key = user_key | (shader_type << 24);
ret = drm_ht_insert_item(&man->shaders, &compat->hash);
if (unlikely(ret != 0))
goto out_invalid_key;
compat->state = VMW_COMPAT_ADD;
compat->handle = handle;
compat->tfile = tfile;
list_add_tail(&compat->head, list);
return 0;
out_invalid_key:
kfree(compat);
no_compat:
ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
no_reserve:
out:
return ret;
}
/**
* vmw_compat_shader_man_create - Create a compat shader manager
*
* @dev_priv: Pointer to a device private structure.
*
* Typically done at file open time. If successful returns a pointer to a
* compat shader manager. Otherwise returns an error pointer.
*/
struct vmw_compat_shader_manager *
vmw_compat_shader_man_create(struct vmw_private *dev_priv)
{
struct vmw_compat_shader_manager *man;
int ret;
man = kzalloc(sizeof(*man), GFP_KERNEL);
man->dev_priv = dev_priv;
INIT_LIST_HEAD(&man->list);
ret = drm_ht_create(&man->shaders, VMW_COMPAT_SHADER_HT_ORDER);
if (ret == 0)
return man;
kfree(man);
return ERR_PTR(ret);
}
/**
* vmw_compat_shader_man_destroy - Destroy a compat shader manager
*
* @man: Pointer to the shader manager to destroy.
*
* Typically done at file close time.
*/
void vmw_compat_shader_man_destroy(struct vmw_compat_shader_manager *man)
{
struct vmw_compat_shader *entry, *next;
mutex_lock(&man->dev_priv->cmdbuf_mutex);
list_for_each_entry_safe(entry, next, &man->list, head)
vmw_compat_shader_free(man, entry);
mutex_unlock(&man->dev_priv->cmdbuf_mutex);
kfree(man);
}

6
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
View file

@ -908,8 +908,8 @@ int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
rep->size_addr;
if (user_sizes)
ret = copy_to_user(user_sizes, srf->sizes,
srf->num_sizes * sizeof(*srf->sizes));
ret = copy_to_user(user_sizes, &srf->base_size,
sizeof(srf->base_size));
if (unlikely(ret != 0)) {
DRM_ERROR("copy_to_user failed %p %u\n",
user_sizes, srf->num_sizes);
@ -1111,7 +1111,7 @@ static int vmw_gb_surface_destroy(struct vmw_resource *res)
return 0;
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_res_list_kill(&res->binding_head);
vmw_context_binding_res_list_scrub(&res->binding_head);
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL)) {