Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
new file mode 100644
index 000000000..b3eb1662e
--- /dev/null
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2018 Etnaviv Project
+ */
+
+#ifndef __ETNAVIV_DRV_H__
+#define __ETNAVIV_DRV_H__
+
+#include <linux/io.h>
+#include <linux/list.h>
+#include <linux/mm_types.h>
+#include <linux/sizes.h>
+#include <linux/time64.h>
+#include <linux/types.h>
+#include <linux/xarray.h>
+
+#include <drm/drm_drv.h>
+#include <drm/drm_gem.h>
+#include <drm/etnaviv_drm.h>
+#include <drm/gpu_scheduler.h>
+
+struct etnaviv_cmdbuf;
+struct etnaviv_gpu;
+struct etnaviv_mmu;
+struct etnaviv_gem_object;
+struct etnaviv_gem_submit;
+struct etnaviv_iommu_global;
+
+#define ETNAVIV_SOFTPIN_START_ADDRESS	SZ_4M /* must be >= SUBALLOC_SIZE */
+
+struct etnaviv_file_private {
+	int id;
+	struct etnaviv_iommu_context	*mmu;
+	struct drm_sched_entity		sched_entity[ETNA_MAX_PIPES];
+};
+
+struct etnaviv_drm_private {
+	int num_gpus;
+	struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
+	gfp_t shm_gfp_mask;
+
+	struct etnaviv_cmdbuf_suballoc *cmdbuf_suballoc;
+	struct etnaviv_iommu_global *mmu_global;
+
+	struct xarray active_contexts;
+	u32 next_context_id;
+
+	/* list of GEM objects: */
+	struct mutex gem_lock;
+	struct list_head gem_list;
+};
+
+int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
+		struct drm_file *file);
+
+int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
+struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
+int etnaviv_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
+struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
+	struct dma_buf_attachment *attach, struct sg_table *sg);
+int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
+void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
+void *etnaviv_gem_vmap(struct drm_gem_object *obj);
+int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
+		struct drm_etnaviv_timespec *timeout);
+int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
+void etnaviv_gem_free_object(struct drm_gem_object *obj);
+int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
+		u32 size, u32 flags, u32 *handle);
+int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
+	uintptr_t ptr, u32 size, u32 flags, u32 *handle);
+u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
+u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
+u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu, unsigned short id);
+void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
+void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
+void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
+	struct etnaviv_iommu_context *mmu,
+	unsigned int event, struct etnaviv_cmdbuf *cmdbuf);
+void etnaviv_validate_init(void);
+bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu,
+	u32 *stream, unsigned int size,
+	struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size);
+
+#ifdef CONFIG_DEBUG_FS
+void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
+	struct seq_file *m);
+#endif
+
+#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
+#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
+
+/*
+ * Return the storage size of a structure with a variable length array.
+ * The array is nelem elements of elem_size, where the base structure
+ * is defined by base.  If the size overflows size_t, return zero.
+ */
+static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
+{
+	if (elem_size && nelem > (SIZE_MAX - base) / elem_size)
+		return 0;
+	return base + nelem * elem_size;
+}
+
+/*
+ * Etnaviv timeouts are specified wrt CLOCK_MONOTONIC, not jiffies.
+ * We need to calculate the timeout in terms of number of jiffies
+ * between the specified timeout and the current CLOCK_MONOTONIC time.
+ */
+static inline unsigned long etnaviv_timeout_to_jiffies(
+	const struct drm_etnaviv_timespec *timeout)
+{
+	struct timespec64 ts, to = {
+		.tv_sec = timeout->tv_sec,
+		.tv_nsec = timeout->tv_nsec,
+	};
+
+	ktime_get_ts64(&ts);
+
+	/* timeouts before "now" have already expired */
+	if (timespec64_compare(&to, &ts) <= 0)
+		return 0;
+
+	ts = timespec64_sub(to, ts);
+
+	return timespec64_to_jiffies(&ts);
+}
+
+#endif /* __ETNAVIV_DRV_H__ */