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d2d79d29bb
Implement ioctls for the creation and destruction of contexts. Contexts are
used for job submission and each is associated with a particular job type.
Changes since v8:
- Fixed one error path in pvr_stream_process_1()
- Corrected license identifiers
Changes since v5:
- Fix context release in final error path in pvr_context_create()
Changes since v3:
- Use drm_dev_{enter,exit}
Co-developed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Sarah Walker <sarah.walker@imgtec.com>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Link: https://lore.kernel.org/r/ac474a1f7dda2582d290798e4837140a2989aa2a.1700668843.git.donald.robson@imgtec.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
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/* Copyright (c) 2023 Imagination Technologies Ltd. */
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#ifndef PVR_STREAM_H
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#define PVR_STREAM_H
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#include <linux/bits.h>
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#include <linux/limits.h>
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#include <linux/types.h>
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struct pvr_device;
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struct pvr_job;
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enum pvr_stream_type {
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PVR_STREAM_TYPE_GEOM = 0,
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PVR_STREAM_TYPE_FRAG,
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PVR_STREAM_TYPE_COMPUTE,
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PVR_STREAM_TYPE_TRANSFER,
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PVR_STREAM_TYPE_STATIC_RENDER_CONTEXT,
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PVR_STREAM_TYPE_STATIC_COMPUTE_CONTEXT,
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PVR_STREAM_TYPE_MAX
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};
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enum pvr_stream_size {
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PVR_STREAM_SIZE_8 = 0,
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PVR_STREAM_SIZE_16,
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PVR_STREAM_SIZE_32,
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PVR_STREAM_SIZE_64,
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PVR_STREAM_SIZE_ARRAY,
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};
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#define PVR_FEATURE_NOT BIT(31)
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#define PVR_FEATURE_NONE U32_MAX
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struct pvr_stream_def {
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u32 offset;
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enum pvr_stream_size size;
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u32 array_size;
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u32 feature;
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};
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struct pvr_stream_ext_def {
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const struct pvr_stream_def *stream;
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u32 stream_len;
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u32 header_mask;
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u32 quirk;
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};
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struct pvr_stream_ext_header {
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const struct pvr_stream_ext_def *ext_streams;
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u32 ext_streams_num;
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u32 valid_mask;
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};
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struct pvr_stream_cmd_defs {
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enum pvr_stream_type type;
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const struct pvr_stream_def *main_stream;
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u32 main_stream_len;
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u32 ext_nr_headers;
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const struct pvr_stream_ext_header *ext_headers;
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size_t dest_size;
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};
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int
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pvr_stream_process(struct pvr_device *pvr_dev, const struct pvr_stream_cmd_defs *cmd_defs,
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void *stream, u32 stream_size, void *dest_out);
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void
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pvr_stream_create_musthave_masks(struct pvr_device *pvr_dev);
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#endif /* PVR_STREAM_H */
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