#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
+#include "util/u_atomic.h"
#include "util/list.h"
#if defined(__cplusplus)
uint32_t gem_handle;
/**
- * Last seen card virtual address (offset from the beginning of the
- * aperture) for the object. This should be used to fill relocation
- * entries when calling brw_bo_emit_reloc()
+ * Offset of the buffer inside the Graphics Translation Table.
+ *
+ * This is effectively our GPU address for the buffer and we use it
+ * as our base for all state pointers into the buffer. However, since the
+ * kernel may be forced to move it around during the course of the
+ * buffer's lifetime, we can only know where the buffer was on the last
+ * execbuf. We presume, and are usually right, that the buffer will not
+ * move and so we use that last offset for the next batch and by doing
+ * so we can avoid having the kernel perform a relocation fixup pass as
+ * our pointers inside the batch will be using the correct base offset.
+ *
+ * Since we do use it as a base address for the next batch of pointers,
+ * the kernel treats our offset as a request, and if possible will
+ * arrange the buffer to placed at that address (trying to balance
+ * the cost of buffer migration versus the cost of performing
+ * relocations). Furthermore, we can force the kernel to place the buffer,
+ * or report a failure if we specified a conflicting offset, at our chosen
+ * offset by specifying EXEC_OBJECT_PINNED.
+ *
+ * Note the GTT may be either per context, or shared globally across the
+ * system. On a shared system, our buffers have to contend for address
+ * space with both aperture mappings and framebuffers and so are more
+ * likely to be moved. On a full ppGTT system, each batch exists in its
+ * own GTT, and so each buffer may have their own offset within each
+ * context.
+ */
+ uint64_t gtt_offset;
+
+ /**
+ * The validation list index for this buffer, or -1 when not in a batch.
+ * Note that a single buffer may be in multiple batches (contexts), and
+ * this is a global field, which refers to the last batch using the BO.
+ * It should not be considered authoritative, but can be used to avoid a
+ * linear walk of the validation list in the common case by guessing that
+ * exec_bos[bo->index] == bo and confirming whether that's the case.
*/
- uint64_t offset64;
+ unsigned index;
/**
* Boolean of whether the GPU is definitely not accessing the buffer.
int refcount;
const char *name;
-#ifndef EXEC_OBJECT_CAPTURE
-#define EXEC_OBJECT_CAPTURE (1<<7)
-#endif
uint64_t kflags;
/**
void *map_gtt;
/** WC CPU address for the buffer, saved across map/unmap cycles */
void *map_wc;
- int map_count;
/** BO cache list */
struct list_head head;
*/
bool reusable;
+ /**
+ * Boolean of whether this buffer has been shared with an external client.
+ */
+ bool external;
+
/**
* Boolean of whether this buffer is cache coherent
*/
bool cache_coherent;
};
-#define BO_ALLOC_FOR_RENDER (1<<0)
+#define BO_ALLOC_BUSY (1<<0)
+#define BO_ALLOC_ZEROED (1<<1)
/**
* Allocate a buffer object.
unsigned flags);
/** Takes a reference on a buffer object */
-void brw_bo_reference(struct brw_bo *bo);
+static inline void
+brw_bo_reference(struct brw_bo *bo)
+{
+ p_atomic_inc(&bo->refcount);
+}
/**
* Releases a reference on a buffer object, freeing the data if
* Reduces the refcount on the userspace mapping of the buffer
* object.
*/
-int brw_bo_unmap(struct brw_bo *bo);
+static inline int brw_bo_unmap(struct brw_bo *bo) { return 0; }
/** Write data into an object. */
int brw_bo_subdata(struct brw_bo *bo, uint64_t offset,
uint64_t size, const void *data);
-/** Read data from an object. */
-int brw_bo_get_subdata(struct brw_bo *bo, uint64_t offset,
- uint64_t size, void *data);
/**
* Waits for rendering to an object by the GPU to have completed.
*
* bo_subdata, etc. It is merely a way for the driver to implement
* glFinish.
*/
-void brw_bo_wait_rendering(struct brw_context *brw, struct brw_bo *bo);
+void brw_bo_wait_rendering(struct brw_bo *bo);
/**
* Tears down the buffer manager instance.
int brw_bo_madvise(struct brw_bo *bo, int madv);
/* drm_bacon_bufmgr_gem.c */
-struct brw_bufmgr *brw_bufmgr_init(struct gen_device_info *devinfo,
- int fd, int batch_size);
+struct brw_bufmgr *brw_bufmgr_init(struct gen_device_info *devinfo, int fd);
struct brw_bo *brw_bo_gem_create_from_name(struct brw_bufmgr *bufmgr,
const char *name,
unsigned int handle);
int brw_bo_wait(struct brw_bo *bo, int64_t timeout_ns);
uint32_t brw_create_hw_context(struct brw_bufmgr *bufmgr);
+
+#define BRW_CONTEXT_LOW_PRIORITY ((I915_CONTEXT_MIN_USER_PRIORITY-1)/2)
+#define BRW_CONTEXT_MEDIUM_PRIORITY (I915_CONTEXT_DEFAULT_PRIORITY)
+#define BRW_CONTEXT_HIGH_PRIORITY ((I915_CONTEXT_MAX_USER_PRIORITY+1)/2)
+
+int brw_hw_context_set_priority(struct brw_bufmgr *bufmgr,
+ uint32_t ctx_id,
+ int priority);
+
void brw_destroy_hw_context(struct brw_bufmgr *bufmgr, uint32_t ctx_id);
int brw_bo_gem_export_to_prime(struct brw_bo *bo, int *prime_fd);
struct brw_bo *brw_bo_gem_create_from_prime(struct brw_bufmgr *bufmgr,
int prime_fd);
+struct brw_bo *brw_bo_gem_create_from_prime_tiled(struct brw_bufmgr *bufmgr,
+ int prime_fd,
+ uint32_t tiling_mode,
+ uint32_t stride);
+
+uint32_t brw_bo_export_gem_handle(struct brw_bo *bo);
int brw_reg_read(struct brw_bufmgr *bufmgr, uint32_t offset,
uint64_t *result);
projects / mesa.git / blobdiff