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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-08-15 13:59:49 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-10-12 10:13:40 +0100 |
| commit | 96f60e37dc66091bde8d5de136ff6fda09f2d799 (patch) | |
| tree | 2c2cc30a5ac7339730430369e27d33d4a8dd21ef /drivers/gpu/drm/armada/armada_gem.h | |
| parent | 15c03dd4859ab16f9212238f29dd315654aa94f6 (diff) | |
| download | linux-96f60e37dc66091bde8d5de136ff6fda09f2d799.tar.bz2 | |
DRM: Armada: Add Armada DRM driver
This patch adds support for the pair of LCD controllers on the Marvell
Armada 510 SoCs. This driver supports:
- multiple contiguous scanout buffers for video and graphics
- shm backed cacheable buffer objects for X pixmaps for Vivante GPU
acceleration
- dual lcd0 and lcd1 crt operation
- video overlay on each LCD crt via DRM planes
- page flipping of the main scanout buffers
- DRM prime for buffer export/import
This driver is trivial to extend to other Armada SoCs.
Included in this commit is the core driver with no output support; output
support is platform and encoder driver dependent.
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm/armada/armada_gem.h')
| -rw-r--r-- | drivers/gpu/drm/armada/armada_gem.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/gpu/drm/armada/armada_gem.h b/drivers/gpu/drm/armada/armada_gem.h new file mode 100644 index 000000000000..00b6cd461a03 --- /dev/null +++ b/drivers/gpu/drm/armada/armada_gem.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2012 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef ARMADA_GEM_H +#define ARMADA_GEM_H + +/* GEM */ +struct armada_gem_object { + struct drm_gem_object obj; + void *addr; + phys_addr_t phys_addr; + resource_size_t dev_addr; + struct drm_mm_node *linear; /* for linear backed */ + struct page *page; /* for page backed */ + struct sg_table *sgt; /* for imported */ + void (*update)(void *); + void *update_data; +}; + +extern const struct vm_operations_struct armada_gem_vm_ops; + +#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj) + +void armada_gem_free_object(struct drm_gem_object *); +int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *); +void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *); +struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *, + size_t); +int armada_gem_dumb_create(struct drm_file *, struct drm_device *, + struct drm_mode_create_dumb *); +int armada_gem_dumb_map_offset(struct drm_file *, struct drm_device *, + uint32_t, uint64_t *); +int armada_gem_dumb_destroy(struct drm_file *, struct drm_device *, + uint32_t); +struct dma_buf *armada_gem_prime_export(struct drm_device *dev, + struct drm_gem_object *obj, int flags); +struct drm_gem_object *armada_gem_prime_import(struct drm_device *, + struct dma_buf *); +int armada_gem_map_import(struct armada_gem_object *); + +static inline struct armada_gem_object *armada_gem_object_lookup( + struct drm_device *dev, struct drm_file *dfile, unsigned handle) +{ + struct drm_gem_object *obj = drm_gem_object_lookup(dev, dfile, handle); + + return obj ? drm_to_armada_gem(obj) : NULL; +} +#endif |