#ifndef PAN_SCREEN_H
#define PAN_SCREEN_H
+#include <xf86drm.h>
#include "pipe/p_screen.h"
#include "pipe/p_defines.h"
#include "renderonly/renderonly.h"
struct panfrost_resource;
struct panfrost_screen;
+/* Driver limits */
+#define PAN_MAX_CONST_BUFFERS 16
+
/* Flags for allocated memory */
/* This memory region is executable */
#define MAX_TRANSIENT_SLABS (1024*1024 / TRANSIENT_SLAB_PAGES)
+/* How many power-of-two levels in the BO cache do we want? 2^12
+ * minimum chosen as it is the page size that all allocations are
+ * rounded to */
+
+#define MIN_BO_CACHE_BUCKET (12) /* 2^12 = 4KB */
+#define MAX_BO_CACHE_BUCKET (22) /* 2^22 = 4MB */
+
+/* Fencepost problem, hence the off-by-one */
+#define NR_BO_CACHE_BUCKETS (MAX_BO_CACHE_BUCKET - MIN_BO_CACHE_BUCKET + 1)
+
struct panfrost_screen {
struct pipe_screen base;
int fd;
+
+ /* Properties of the GPU in use */
unsigned gpu_id;
+ bool require_sfbd;
+
+ drmVersionPtr kernel_version;
struct renderonly *ro;
+ pthread_mutex_t transient_lock;
+
/* Transient memory management is based on borrowing fixed-size slabs
* off the screen (loaning them out to the batch). Dynamic array
* container of panfrost_bo */
/* Set of free transient BOs */
BITSET_DECLARE(free_transient, MAX_TRANSIENT_SLABS);
- /* While we're busy building up the job for frame N, the GPU is
- * still busy executing frame N-1. So hold a reference to
- * yesterjob */
- int last_fragment_flushed;
- struct panfrost_job *last_job;
+ pthread_mutex_t bo_cache_lock;
+
+ /* The BO cache is a set of buckets with power-of-two sizes ranging
+ * from 2^12 (4096, the page size) to 2^(12 + MAX_BO_CACHE_BUCKETS).
+ * Each bucket is a linked list of free panfrost_bo objects. */
+
+ struct list_head bo_cache[NR_BO_CACHE_BUCKETS];
};
static inline struct panfrost_screen *
void
panfrost_drm_mmap_bo(struct panfrost_screen *screen, struct panfrost_bo *bo);
void
-panfrost_drm_release_bo(struct panfrost_screen *screen, struct panfrost_bo *bo);
+panfrost_drm_release_bo(struct panfrost_screen *screen, struct panfrost_bo *bo, bool cacheable);
struct panfrost_bo *
panfrost_drm_import_bo(struct panfrost_screen *screen, int fd);
int
panfrost_drm_export_bo(struct panfrost_screen *screen, const struct panfrost_bo *bo);
int
-panfrost_drm_submit_vs_fs_job(struct panfrost_context *ctx, bool has_draws,
- bool is_scanout);
+panfrost_drm_submit_vs_fs_job(struct panfrost_context *ctx, bool has_draws);
void
panfrost_drm_force_flush_fragment(struct panfrost_context *ctx,
struct pipe_fence_handle **fence);
struct pipe_context *ctx,
struct pipe_fence_handle *fence,
uint64_t timeout);
+struct panfrost_bo *
+panfrost_bo_cache_fetch(
+ struct panfrost_screen *screen,
+ size_t size, uint32_t flags);
+
+bool
+panfrost_bo_cache_put(
+ struct panfrost_screen *screen,
+ struct panfrost_bo *bo);
+
+void
+panfrost_bo_cache_evict_all(
+ struct panfrost_screen *screen);
#endif /* PAN_SCREEN_H */