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f99f5f3ea7
Read the GPU ID register at probe time and select the correct
features/quirks/enhancements. Use the GPU ID to form the firmware
file name and load the firmware.
The features/quirks/enhancements arrays are currently hardcoded in
the driver for the supported GPUs. We are looking at moving this
information to the firmware image.
Changes since v8:
- Corrected license identifiers
Changes since v7:
- Fix kerneldoc for pvr_device_info_set_enhancements()
Changes since v5:
- Add BRN 71242 to device info
Changes since v4:
- Retrieve device information from firmware header
- Pull forward firmware header parsing from FW infrastructure patch
- Use devm_add_action_or_reset to release firmware
Changes since v3:
- Use drm_dev_{enter,exit}
Co-developed-by: Frank Binns <frank.binns@imgtec.com>
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Co-developed-by: Matt Coster <matt.coster@imgtec.com>
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Co-developed-by: Donald Robson <donald.robson@imgtec.com>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Signed-off-by: Sarah Walker <sarah.walker@imgtec.com>
Link: https://lore.kernel.org/r/1ff76f7a5b45c742279c78910f8491b8a5e7f6e6.1700668843.git.donald.robson@imgtec.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
130 lines
5.1 KiB
C
130 lines
5.1 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_DRV_H
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#define PVR_DRV_H
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#include "linux/compiler_attributes.h"
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#include <uapi/drm/pvr_drm.h>
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#define PVR_DRIVER_NAME "powervr"
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#define PVR_DRIVER_DESC "Imagination PowerVR (Series 6 and later) & IMG Graphics"
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#define PVR_DRIVER_DATE "20230904"
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/*
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* Driver interface version:
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* - 1.0: Initial interface
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*/
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#define PVR_DRIVER_MAJOR 1
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#define PVR_DRIVER_MINOR 0
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#define PVR_DRIVER_PATCHLEVEL 0
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int pvr_get_uobj(u64 usr_ptr, u32 usr_size, u32 min_size, u32 obj_size, void *out);
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int pvr_set_uobj(u64 usr_ptr, u32 usr_size, u32 min_size, u32 obj_size, const void *in);
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int pvr_get_uobj_array(const struct drm_pvr_obj_array *in, u32 min_stride, u32 obj_size,
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void **out);
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int pvr_set_uobj_array(const struct drm_pvr_obj_array *out, u32 min_stride, u32 obj_size,
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const void *in);
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#define PVR_UOBJ_MIN_SIZE_INTERNAL(_typename, _last_mandatory_field) \
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(offsetof(_typename, _last_mandatory_field) + \
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sizeof(((_typename *)NULL)->_last_mandatory_field))
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/* NOLINTBEGIN(bugprone-macro-parentheses) */
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#define PVR_UOBJ_DECL(_typename, _last_mandatory_field) \
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, _typename : PVR_UOBJ_MIN_SIZE_INTERNAL(_typename, _last_mandatory_field)
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/* NOLINTEND(bugprone-macro-parentheses) */
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/**
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* DOC: PVR user objects.
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*
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* Macros used to aid copying structured and array data to and from
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* userspace. Objects can differ in size, provided the minimum size
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* allowed is specified (using the last mandatory field in the struct).
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* All types used with PVR_UOBJ_GET/SET macros must be listed here under
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* PVR_UOBJ_MIN_SIZE, with the last mandatory struct field specified.
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*/
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/**
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* PVR_UOBJ_MIN_SIZE() - Fetch the minimum copy size of a compatible type object.
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* @_obj_name: The name of the object. Cannot be a typename - this is deduced.
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*
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* This cannot fail. Using the macro with an incompatible type will result in a
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* compiler error.
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*
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* To add compatibility for a type, list it within the macro in an orderly
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* fashion. The second argument is the name of the last mandatory field of the
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* struct type, which is used to calculate the size. See also PVR_UOBJ_DECL().
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*
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* Return: The minimum copy size.
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*/
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#define PVR_UOBJ_MIN_SIZE(_obj_name) _Generic(_obj_name \
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PVR_UOBJ_DECL(struct drm_pvr_job, hwrt) \
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PVR_UOBJ_DECL(struct drm_pvr_sync_op, value) \
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PVR_UOBJ_DECL(struct drm_pvr_dev_query_gpu_info, num_phantoms) \
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PVR_UOBJ_DECL(struct drm_pvr_dev_query_runtime_info, cdm_max_local_mem_size_regs) \
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PVR_UOBJ_DECL(struct drm_pvr_dev_query_quirks, _padding_c) \
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PVR_UOBJ_DECL(struct drm_pvr_dev_query_enhancements, _padding_c) \
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PVR_UOBJ_DECL(struct drm_pvr_heap, page_size_log2) \
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PVR_UOBJ_DECL(struct drm_pvr_dev_query_heap_info, heaps) \
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PVR_UOBJ_DECL(struct drm_pvr_static_data_area, offset) \
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PVR_UOBJ_DECL(struct drm_pvr_dev_query_static_data_areas, static_data_areas) \
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)
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/**
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* PVR_UOBJ_GET() - Copies from _src_usr_ptr to &_dest_obj.
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* @_dest_obj: The destination container object in kernel space.
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* @_usr_size: The size of the source container in user space.
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* @_src_usr_ptr: __u64 raw pointer to the source container in user space.
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*
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* Return: Error code. See pvr_get_uobj().
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*/
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#define PVR_UOBJ_GET(_dest_obj, _usr_size, _src_usr_ptr) \
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pvr_get_uobj(_src_usr_ptr, _usr_size, \
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PVR_UOBJ_MIN_SIZE(_dest_obj), \
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sizeof(_dest_obj), &(_dest_obj))
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/**
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* PVR_UOBJ_SET() - Copies from &_src_obj to _dest_usr_ptr.
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* @_dest_usr_ptr: __u64 raw pointer to the destination container in user space.
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* @_usr_size: The size of the destination container in user space.
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* @_src_obj: The source container object in kernel space.
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*
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* Return: Error code. See pvr_set_uobj().
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*/
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#define PVR_UOBJ_SET(_dest_usr_ptr, _usr_size, _src_obj) \
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pvr_set_uobj(_dest_usr_ptr, _usr_size, \
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PVR_UOBJ_MIN_SIZE(_src_obj), \
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sizeof(_src_obj), &(_src_obj))
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/**
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* PVR_UOBJ_GET_ARRAY() - Copies from @_src_drm_pvr_obj_array.array to
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* alloced memory and returns a pointer in _dest_array.
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* @_dest_array: The destination C array object in kernel space.
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* @_src_drm_pvr_obj_array: The &struct drm_pvr_obj_array containing a __u64 raw
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* pointer to the source C array in user space and the size of each array
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* element in user space (the 'stride').
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*
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* Return: Error code. See pvr_get_uobj_array().
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*/
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#define PVR_UOBJ_GET_ARRAY(_dest_array, _src_drm_pvr_obj_array) \
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pvr_get_uobj_array(_src_drm_pvr_obj_array, \
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PVR_UOBJ_MIN_SIZE((_dest_array)[0]), \
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sizeof((_dest_array)[0]), (void **)&(_dest_array))
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/**
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* PVR_UOBJ_SET_ARRAY() - Copies from _src_array to @_dest_drm_pvr_obj_array.array.
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* @_dest_drm_pvr_obj_array: The &struct drm_pvr_obj_array containing a __u64 raw
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* pointer to the destination C array in user space and the size of each array
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* element in user space (the 'stride').
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* @_src_array: The source C array object in kernel space.
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*
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* Return: Error code. See pvr_set_uobj_array().
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*/
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#define PVR_UOBJ_SET_ARRAY(_dest_drm_pvr_obj_array, _src_array) \
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pvr_set_uobj_array(_dest_drm_pvr_obj_array, \
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PVR_UOBJ_MIN_SIZE((_src_array)[0]), \
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sizeof((_src_array)[0]), _src_array)
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#endif /* PVR_DRV_H */
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