drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.h
Extension
.h
Size
1045 bytes
Lines
44
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef INTEL_GT_BUFFER_POOL_H
#define INTEL_GT_BUFFER_POOL_H

#include <linux/types.h>

#include "i915_active.h"
#include "intel_gt_buffer_pool_types.h"

struct intel_gt;
struct i915_request;

struct intel_gt_buffer_pool_node *
intel_gt_get_buffer_pool(struct intel_gt *gt, size_t size,
			 enum i915_map_type type);

void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node);

static inline int
intel_gt_buffer_pool_mark_active(struct intel_gt_buffer_pool_node *node,
				 struct i915_request *rq)
{
	/* did we call mark_used? */
	GEM_WARN_ON(!node->pinned);

	return i915_active_add_request(&node->active, rq);
}

static inline void
intel_gt_buffer_pool_put(struct intel_gt_buffer_pool_node *node)
{
	i915_active_release(&node->active);
}

void intel_gt_init_buffer_pool(struct intel_gt *gt);
void intel_gt_flush_buffer_pool(struct intel_gt *gt);
void intel_gt_fini_buffer_pool(struct intel_gt *gt);

#endif /* INTEL_GT_BUFFER_POOL_H */

Annotation

Implementation Notes