diff options
Diffstat (limited to 'drivers/gpu/drm/imagination/pvr_drv.c')
| -rw-r--r-- | drivers/gpu/drm/imagination/pvr_drv.c | 1501 |
1 files changed, 1501 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_drv.c b/drivers/gpu/drm/imagination/pvr_drv.c new file mode 100644 index 0000000000..5c3b2d58d7 --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_drv.c @@ -0,0 +1,1501 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#include "pvr_context.h" +#include "pvr_debugfs.h" +#include "pvr_device.h" +#include "pvr_drv.h" +#include "pvr_free_list.h" +#include "pvr_gem.h" +#include "pvr_hwrt.h" +#include "pvr_job.h" +#include "pvr_mmu.h" +#include "pvr_power.h" +#include "pvr_rogue_defs.h" +#include "pvr_rogue_fwif_client.h" +#include "pvr_rogue_fwif_shared.h" +#include "pvr_vm.h" + +#include <uapi/drm/pvr_drm.h> + +#include <drm/drm_device.h> +#include <drm/drm_drv.h> +#include <drm/drm_file.h> +#include <drm/drm_gem.h> +#include <drm/drm_ioctl.h> + +#include <linux/err.h> +#include <linux/export.h> +#include <linux/fs.h> +#include <linux/kernel.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/of_device.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/xarray.h> + +/** + * DOC: PowerVR (Series 6 and later) and IMG Graphics Driver + * + * This driver supports the following PowerVR/IMG graphics cores from Imagination Technologies: + * + * * AXE-1-16M (found in Texas Instruments AM62) + */ + +/** + * pvr_ioctl_create_bo() - IOCTL to create a GEM buffer object. + * @drm_dev: [IN] Target DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_create_bo_args. + * @file: [IN] DRM file-private data. + * + * Called from userspace with %DRM_IOCTL_PVR_CREATE_BO. + * + * Return: + * * 0 on success, + * * -%EINVAL if the value of &drm_pvr_ioctl_create_bo_args.size is zero + * or wider than &typedef size_t, + * * -%EINVAL if any bits in &drm_pvr_ioctl_create_bo_args.flags that are + * reserved or undefined are set, + * * -%EINVAL if any padding fields in &drm_pvr_ioctl_create_bo_args are not + * zero, + * * Any error encountered while creating the object (see + * pvr_gem_object_create()), or + * * Any error encountered while transferring ownership of the object into a + * userspace-accessible handle (see pvr_gem_object_into_handle()). + */ +static int +pvr_ioctl_create_bo(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_create_bo_args *args = raw_args; + struct pvr_device *pvr_dev = to_pvr_device(drm_dev); + struct pvr_file *pvr_file = to_pvr_file(file); + + struct pvr_gem_object *pvr_obj; + size_t sanitized_size; + + int idx; + int err; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + /* All padding fields must be zeroed. */ + if (args->_padding_c != 0) { + err = -EINVAL; + goto err_drm_dev_exit; + } + + /* + * On 64-bit platforms (our primary target), size_t is a u64. However, + * on other architectures we have to check for overflow when casting + * down to size_t from u64. + * + * We also disallow zero-sized allocations, and reserved (kernel-only) + * flags. + */ + if (args->size > SIZE_MAX || args->size == 0 || args->flags & + ~DRM_PVR_BO_FLAGS_MASK || args->size & (PVR_DEVICE_PAGE_SIZE - 1)) { + err = -EINVAL; + goto err_drm_dev_exit; + } + + sanitized_size = (size_t)args->size; + + /* + * Create a buffer object and transfer ownership to a userspace- + * accessible handle. + */ + pvr_obj = pvr_gem_object_create(pvr_dev, sanitized_size, args->flags); + if (IS_ERR(pvr_obj)) { + err = PTR_ERR(pvr_obj); + goto err_drm_dev_exit; + } + + /* This function will not modify &args->handle unless it succeeds. */ + err = pvr_gem_object_into_handle(pvr_obj, pvr_file, &args->handle); + if (err) + goto err_destroy_obj; + + drm_dev_exit(idx); + + return 0; + +err_destroy_obj: + /* + * GEM objects are refcounted, so there is no explicit destructor + * function. Instead, we release the singular reference we currently + * hold on the object and let GEM take care of the rest. + */ + pvr_gem_object_put(pvr_obj); + +err_drm_dev_exit: + drm_dev_exit(idx); + + return err; +} + +/** + * pvr_ioctl_get_bo_mmap_offset() - IOCTL to generate a "fake" offset to be + * used when calling mmap() from userspace to map the given GEM buffer object + * @drm_dev: [IN] DRM device (unused). + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_get_bo_mmap_offset_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_GET_BO_MMAP_OFFSET. + * + * This IOCTL does *not* perform an mmap. See the docs on + * &struct drm_pvr_ioctl_get_bo_mmap_offset_args for details. + * + * Return: + * * 0 on success, + * * -%ENOENT if the handle does not reference a valid GEM buffer object, + * * -%EINVAL if any padding fields in &struct + * drm_pvr_ioctl_get_bo_mmap_offset_args are not zero, or + * * Any error returned by drm_gem_create_mmap_offset(). + */ +static int +pvr_ioctl_get_bo_mmap_offset(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_get_bo_mmap_offset_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_gem_object *pvr_obj; + struct drm_gem_object *gem_obj; + int idx; + int ret; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + /* All padding fields must be zeroed. */ + if (args->_padding_4 != 0) { + ret = -EINVAL; + goto err_drm_dev_exit; + } + + /* + * Obtain a kernel reference to the buffer object. This reference is + * counted and must be manually dropped before returning. If a buffer + * object cannot be found for the specified handle, return -%ENOENT (No + * such file or directory). + */ + pvr_obj = pvr_gem_object_from_handle(pvr_file, args->handle); + if (!pvr_obj) { + ret = -ENOENT; + goto err_drm_dev_exit; + } + + gem_obj = gem_from_pvr_gem(pvr_obj); + + /* + * Allocate a fake offset which can be used in userspace calls to mmap + * on the DRM device file. If this fails, return the error code. This + * operation is idempotent. + */ + ret = drm_gem_create_mmap_offset(gem_obj); + if (ret != 0) { + /* Drop our reference to the buffer object. */ + drm_gem_object_put(gem_obj); + goto err_drm_dev_exit; + } + + /* + * Read out the fake offset allocated by the earlier call to + * drm_gem_create_mmap_offset. + */ + args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); + + /* Drop our reference to the buffer object. */ + pvr_gem_object_put(pvr_obj); + +err_drm_dev_exit: + drm_dev_exit(idx); + + return ret; +} + +static __always_inline u64 +pvr_fw_version_packed(u32 major, u32 minor) +{ + return ((u64)major << 32) | minor; +} + +static u32 +rogue_get_common_store_partition_space_size(struct pvr_device *pvr_dev) +{ + u32 max_partitions = 0; + u32 tile_size_x = 0; + u32 tile_size_y = 0; + + PVR_FEATURE_VALUE(pvr_dev, tile_size_x, &tile_size_x); + PVR_FEATURE_VALUE(pvr_dev, tile_size_y, &tile_size_y); + PVR_FEATURE_VALUE(pvr_dev, max_partitions, &max_partitions); + + if (tile_size_x == 16 && tile_size_y == 16) { + u32 usc_min_output_registers_per_pix = 0; + + PVR_FEATURE_VALUE(pvr_dev, usc_min_output_registers_per_pix, + &usc_min_output_registers_per_pix); + + return tile_size_x * tile_size_y * max_partitions * + usc_min_output_registers_per_pix; + } + + return max_partitions * 1024; +} + +static u32 +rogue_get_common_store_alloc_region_size(struct pvr_device *pvr_dev) +{ + u32 common_store_size_in_dwords = 512 * 4 * 4; + u32 alloc_region_size; + + PVR_FEATURE_VALUE(pvr_dev, common_store_size_in_dwords, &common_store_size_in_dwords); + + alloc_region_size = common_store_size_in_dwords - (256U * 4U) - + rogue_get_common_store_partition_space_size(pvr_dev); + + if (PVR_HAS_QUIRK(pvr_dev, 44079)) { + u32 common_store_split_point = (768U * 4U * 4U); + + return min(common_store_split_point - (256U * 4U), alloc_region_size); + } + + return alloc_region_size; +} + +static inline u32 +rogue_get_num_phantoms(struct pvr_device *pvr_dev) +{ + u32 num_clusters = 1; + + PVR_FEATURE_VALUE(pvr_dev, num_clusters, &num_clusters); + + return ROGUE_REQ_NUM_PHANTOMS(num_clusters); +} + +static inline u32 +rogue_get_max_coeffs(struct pvr_device *pvr_dev) +{ + u32 max_coeff_additional_portion = ROGUE_MAX_VERTEX_SHARED_REGISTERS; + u32 pending_allocation_shared_regs = 2U * 1024U; + u32 pending_allocation_coeff_regs = 0U; + u32 num_phantoms = rogue_get_num_phantoms(pvr_dev); + u32 tiles_in_flight = 0; + u32 max_coeff_pixel_portion; + + PVR_FEATURE_VALUE(pvr_dev, isp_max_tiles_in_flight, &tiles_in_flight); + max_coeff_pixel_portion = DIV_ROUND_UP(tiles_in_flight, num_phantoms); + max_coeff_pixel_portion *= ROGUE_MAX_PIXEL_SHARED_REGISTERS; + + /* + * Compute tasks on cores with BRN48492 and without compute overlap may lock + * up without two additional lines of coeffs. + */ + if (PVR_HAS_QUIRK(pvr_dev, 48492) && !PVR_HAS_FEATURE(pvr_dev, compute_overlap)) + pending_allocation_coeff_regs = 2U * 1024U; + + if (PVR_HAS_ENHANCEMENT(pvr_dev, 38748)) + pending_allocation_shared_regs = 0; + + if (PVR_HAS_ENHANCEMENT(pvr_dev, 38020)) + max_coeff_additional_portion += ROGUE_MAX_COMPUTE_SHARED_REGISTERS; + + return rogue_get_common_store_alloc_region_size(pvr_dev) + pending_allocation_coeff_regs - + (max_coeff_pixel_portion + max_coeff_additional_portion + + pending_allocation_shared_regs); +} + +static inline u32 +rogue_get_cdm_max_local_mem_size_regs(struct pvr_device *pvr_dev) +{ + u32 available_coeffs_in_dwords = rogue_get_max_coeffs(pvr_dev); + + if (PVR_HAS_QUIRK(pvr_dev, 48492) && PVR_HAS_FEATURE(pvr_dev, roguexe) && + !PVR_HAS_FEATURE(pvr_dev, compute_overlap)) { + /* Driver must not use the 2 reserved lines. */ + available_coeffs_in_dwords -= ROGUE_CSRM_LINE_SIZE_IN_DWORDS * 2; + } + + /* + * The maximum amount of local memory available to a kernel is the minimum + * of the total number of coefficient registers available and the max common + * store allocation size which can be made by the CDM. + * + * If any coeff lines are reserved for tessellation or pixel then we need to + * subtract those too. + */ + return min(available_coeffs_in_dwords, (u32)ROGUE_MAX_PER_KERNEL_LOCAL_MEM_SIZE_REGS); +} + +/** + * pvr_dev_query_gpu_info_get() + * @pvr_dev: Device pointer. + * @args: [IN] Device query arguments containing a pointer to a userspace + * struct drm_pvr_dev_query_gpu_info. + * + * If the query object pointer is NULL, the size field is updated with the + * expected size of the query object. + * + * Returns: + * * 0 on success, or if size is requested using a NULL pointer, or + * * -%E2BIG if the indicated length of the allocation is less than is + * required to contain the copied data, or + * * -%EFAULT if local memory could not be copied to userspace. + */ +static int +pvr_dev_query_gpu_info_get(struct pvr_device *pvr_dev, + struct drm_pvr_ioctl_dev_query_args *args) +{ + struct drm_pvr_dev_query_gpu_info gpu_info = {0}; + int err; + + if (!args->pointer) { + args->size = sizeof(struct drm_pvr_dev_query_gpu_info); + return 0; + } + + gpu_info.gpu_id = + pvr_gpu_id_to_packed_bvnc(&pvr_dev->gpu_id); + gpu_info.num_phantoms = rogue_get_num_phantoms(pvr_dev); + + err = PVR_UOBJ_SET(args->pointer, args->size, gpu_info); + if (err < 0) + return err; + + if (args->size > sizeof(gpu_info)) + args->size = sizeof(gpu_info); + return 0; +} + +/** + * pvr_dev_query_runtime_info_get() + * @pvr_dev: Device pointer. + * @args: [IN] Device query arguments containing a pointer to a userspace + * struct drm_pvr_dev_query_runtime_info. + * + * If the query object pointer is NULL, the size field is updated with the + * expected size of the query object. + * + * Returns: + * * 0 on success, or if size is requested using a NULL pointer, or + * * -%E2BIG if the indicated length of the allocation is less than is + * required to contain the copied data, or + * * -%EFAULT if local memory could not be copied to userspace. + */ +static int +pvr_dev_query_runtime_info_get(struct pvr_device *pvr_dev, + struct drm_pvr_ioctl_dev_query_args *args) +{ + struct drm_pvr_dev_query_runtime_info runtime_info = {0}; + int err; + + if (!args->pointer) { + args->size = sizeof(struct drm_pvr_dev_query_runtime_info); + return 0; + } + + runtime_info.free_list_min_pages = + pvr_get_free_list_min_pages(pvr_dev); + runtime_info.free_list_max_pages = + ROGUE_PM_MAX_FREELIST_SIZE / ROGUE_PM_PAGE_SIZE; + runtime_info.common_store_alloc_region_size = + rogue_get_common_store_alloc_region_size(pvr_dev); + runtime_info.common_store_partition_space_size = + rogue_get_common_store_partition_space_size(pvr_dev); + runtime_info.max_coeffs = rogue_get_max_coeffs(pvr_dev); + runtime_info.cdm_max_local_mem_size_regs = + rogue_get_cdm_max_local_mem_size_regs(pvr_dev); + + err = PVR_UOBJ_SET(args->pointer, args->size, runtime_info); + if (err < 0) + return err; + + if (args->size > sizeof(runtime_info)) + args->size = sizeof(runtime_info); + return 0; +} + +/** + * pvr_dev_query_quirks_get() - Unpack array of quirks at the address given + * in a struct drm_pvr_dev_query_quirks, or gets the amount of space required + * for it. + * @pvr_dev: Device pointer. + * @args: [IN] Device query arguments containing a pointer to a userspace + * struct drm_pvr_dev_query_query_quirks. + * + * If the query object pointer is NULL, the size field is updated with the + * expected size of the query object. + * If the userspace pointer in the query object is NULL, or the count is + * short, no data is copied. + * The count field will be updated to that copied, or if either pointer is + * NULL, that which would have been copied. + * The size field in the query object will be updated to the size copied. + * + * Returns: + * * 0 on success, or if size/count is requested using a NULL pointer, or + * * -%EINVAL if args contained non-zero reserved fields, or + * * -%E2BIG if the indicated length of the allocation is less than is + * required to contain the copied data, or + * * -%EFAULT if local memory could not be copied to userspace. + */ +static int +pvr_dev_query_quirks_get(struct pvr_device *pvr_dev, + struct drm_pvr_ioctl_dev_query_args *args) +{ + /* + * @FIXME - hardcoding of numbers here is intended as an + * intermediate step so the UAPI can be fixed, but requires a + * a refactor in the future to store them in a more appropriate + * location + */ + static const u32 umd_quirks_musthave[] = { + 47217, + 49927, + 62269, + }; + static const u32 umd_quirks[] = { + 48545, + 51764, + }; + struct drm_pvr_dev_query_quirks query; + u32 out[ARRAY_SIZE(umd_quirks_musthave) + ARRAY_SIZE(umd_quirks)]; + size_t out_musthave_count = 0; + size_t out_count = 0; + int err; + + if (!args->pointer) { + args->size = sizeof(struct drm_pvr_dev_query_quirks); + return 0; + } + + err = PVR_UOBJ_GET(query, args->size, args->pointer); + + if (err < 0) + return err; + if (query._padding_c) + return -EINVAL; + + for (int i = 0; i < ARRAY_SIZE(umd_quirks_musthave); i++) { + if (pvr_device_has_uapi_quirk(pvr_dev, umd_quirks_musthave[i])) { + out[out_count++] = umd_quirks_musthave[i]; + out_musthave_count++; + } + } + + for (int i = 0; i < ARRAY_SIZE(umd_quirks); i++) { + if (pvr_device_has_uapi_quirk(pvr_dev, umd_quirks[i])) + out[out_count++] = umd_quirks[i]; + } + + if (!query.quirks) + goto copy_out; + if (query.count < out_count) + return -E2BIG; + + if (copy_to_user(u64_to_user_ptr(query.quirks), out, + out_count * sizeof(u32))) { + return -EFAULT; + } + + query.musthave_count = out_musthave_count; + +copy_out: + query.count = out_count; + err = PVR_UOBJ_SET(args->pointer, args->size, query); + if (err < 0) + return err; + + args->size = sizeof(query); + return 0; +} + +/** + * pvr_dev_query_enhancements_get() - Unpack array of enhancements at the + * address given in a struct drm_pvr_dev_query_enhancements, or gets the amount + * of space required for it. + * @pvr_dev: Device pointer. + * @args: [IN] Device query arguments containing a pointer to a userspace + * struct drm_pvr_dev_query_enhancements. + * + * If the query object pointer is NULL, the size field is updated with the + * expected size of the query object. + * If the userspace pointer in the query object is NULL, or the count is + * short, no data is copied. + * The count field will be updated to that copied, or if either pointer is + * NULL, that which would have been copied. + * The size field in the query object will be updated to the size copied. + * + * Returns: + * * 0 on success, or if size/count is requested using a NULL pointer, or + * * -%EINVAL if args contained non-zero reserved fields, or + * * -%E2BIG if the indicated length of the allocation is less than is + * required to contain the copied data, or + * * -%EFAULT if local memory could not be copied to userspace. + */ +static int +pvr_dev_query_enhancements_get(struct pvr_device *pvr_dev, + struct drm_pvr_ioctl_dev_query_args *args) +{ + /* + * @FIXME - hardcoding of numbers here is intended as an + * intermediate step so the UAPI can be fixed, but requires a + * a refactor in the future to store them in a more appropriate + * location + */ + const u32 umd_enhancements[] = { + 35421, + 42064, + }; + struct drm_pvr_dev_query_enhancements query; + u32 out[ARRAY_SIZE(umd_enhancements)]; + size_t out_idx = 0; + int err; + + if (!args->pointer) { + args->size = sizeof(struct drm_pvr_dev_query_enhancements); + return 0; + } + + err = PVR_UOBJ_GET(query, args->size, args->pointer); + + if (err < 0) + return err; + if (query._padding_a) + return -EINVAL; + if (query._padding_c) + return -EINVAL; + + for (int i = 0; i < ARRAY_SIZE(umd_enhancements); i++) { + if (pvr_device_has_uapi_enhancement(pvr_dev, umd_enhancements[i])) + out[out_idx++] = umd_enhancements[i]; + } + + if (!query.enhancements) + goto copy_out; + if (query.count < out_idx) + return -E2BIG; + + if (copy_to_user(u64_to_user_ptr(query.enhancements), out, + out_idx * sizeof(u32))) { + return -EFAULT; + } + +copy_out: + query.count = out_idx; + err = PVR_UOBJ_SET(args->pointer, args->size, query); + if (err < 0) + return err; + + args->size = sizeof(query); + return 0; +} + +/** + * pvr_ioctl_dev_query() - IOCTL to copy information about a device + * @drm_dev: [IN] DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_dev_query_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_DEV_QUERY. + * If the given receiving struct pointer is NULL, or the indicated size is too + * small, the expected size of the struct type will be returned in the size + * argument field. + * + * Return: + * * 0 on success or when fetching the size with args->pointer == NULL, or + * * -%E2BIG if the indicated size of the receiving struct is less than is + * required to contain the copied data, or + * * -%EINVAL if the indicated struct type is unknown, or + * * -%ENOMEM if local memory could not be allocated, or + * * -%EFAULT if local memory could not be copied to userspace. + */ +static int +pvr_ioctl_dev_query(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct pvr_device *pvr_dev = to_pvr_device(drm_dev); + struct drm_pvr_ioctl_dev_query_args *args = raw_args; + int idx; + int ret = -EINVAL; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + switch ((enum drm_pvr_dev_query)args->type) { + case DRM_PVR_DEV_QUERY_GPU_INFO_GET: + ret = pvr_dev_query_gpu_info_get(pvr_dev, args); + break; + + case DRM_PVR_DEV_QUERY_RUNTIME_INFO_GET: + ret = pvr_dev_query_runtime_info_get(pvr_dev, args); + break; + + case DRM_PVR_DEV_QUERY_QUIRKS_GET: + ret = pvr_dev_query_quirks_get(pvr_dev, args); + break; + + case DRM_PVR_DEV_QUERY_ENHANCEMENTS_GET: + ret = pvr_dev_query_enhancements_get(pvr_dev, args); + break; + + case DRM_PVR_DEV_QUERY_HEAP_INFO_GET: + ret = pvr_heap_info_get(pvr_dev, args); + break; + + case DRM_PVR_DEV_QUERY_STATIC_DATA_AREAS_GET: + ret = pvr_static_data_areas_get(pvr_dev, args); + break; + } + + drm_dev_exit(idx); + + return ret; +} + +/** + * pvr_ioctl_create_context() - IOCTL to create a context + * @drm_dev: [IN] DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_create_context_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_CREATE_CONTEXT. + * + * Return: + * * 0 on success, or + * * -%EINVAL if provided arguments are invalid, or + * * -%EFAULT if arguments can't be copied from userspace, or + * * Any error returned by pvr_create_render_context(). + */ +static int +pvr_ioctl_create_context(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_create_context_args *args = raw_args; + struct pvr_file *pvr_file = file->driver_priv; + int idx; + int ret; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + ret = pvr_context_create(pvr_file, args); + + drm_dev_exit(idx); + + return ret; +} + +/** + * pvr_ioctl_destroy_context() - IOCTL to destroy a context + * @drm_dev: [IN] DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_destroy_context_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_DESTROY_CONTEXT. + * + * Return: + * * 0 on success, or + * * -%EINVAL if context not in context list. + */ +static int +pvr_ioctl_destroy_context(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_destroy_context_args *args = raw_args; + struct pvr_file *pvr_file = file->driver_priv; + + if (args->_padding_4) + return -EINVAL; + + return pvr_context_destroy(pvr_file, args->handle); +} + +/** + * pvr_ioctl_create_free_list() - IOCTL to create a free list + * @drm_dev: [IN] DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_create_free_list_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_CREATE_FREE_LIST. + * + * Return: + * * 0 on success, or + * * Any error returned by pvr_free_list_create(). + */ +static int +pvr_ioctl_create_free_list(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_create_free_list_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_free_list *free_list; + int idx; + int err; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + free_list = pvr_free_list_create(pvr_file, args); + if (IS_ERR(free_list)) { + err = PTR_ERR(free_list); + goto err_drm_dev_exit; + } + + /* Allocate object handle for userspace. */ + err = xa_alloc(&pvr_file->free_list_handles, + &args->handle, + free_list, + xa_limit_32b, + GFP_KERNEL); + if (err < 0) + goto err_cleanup; + + drm_dev_exit(idx); + + return 0; + +err_cleanup: + pvr_free_list_put(free_list); + +err_drm_dev_exit: + drm_dev_exit(idx); + + return err; +} + +/** + * pvr_ioctl_destroy_free_list() - IOCTL to destroy a free list + * @drm_dev: [IN] DRM device. + * @raw_args: [IN] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_destroy_free_list_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_DESTROY_FREE_LIST. + * + * Return: + * * 0 on success, or + * * -%EINVAL if free list not in object list. + */ +static int +pvr_ioctl_destroy_free_list(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_destroy_free_list_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_free_list *free_list; + + if (args->_padding_4) + return -EINVAL; + + free_list = xa_erase(&pvr_file->free_list_handles, args->handle); + if (!free_list) + return -EINVAL; + + pvr_free_list_put(free_list); + return 0; +} + +/** + * pvr_ioctl_create_hwrt_dataset() - IOCTL to create a HWRT dataset + * @drm_dev: [IN] DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_create_hwrt_dataset_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_CREATE_HWRT_DATASET. + * + * Return: + * * 0 on success, or + * * Any error returned by pvr_hwrt_dataset_create(). + */ +static int +pvr_ioctl_create_hwrt_dataset(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_create_hwrt_dataset_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_hwrt_dataset *hwrt; + int idx; + int err; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + hwrt = pvr_hwrt_dataset_create(pvr_file, args); + if (IS_ERR(hwrt)) { + err = PTR_ERR(hwrt); + goto err_drm_dev_exit; + } + + /* Allocate object handle for userspace. */ + err = xa_alloc(&pvr_file->hwrt_handles, + &args->handle, + hwrt, + xa_limit_32b, + GFP_KERNEL); + if (err < 0) + goto err_cleanup; + + drm_dev_exit(idx); + + return 0; + +err_cleanup: + pvr_hwrt_dataset_put(hwrt); + +err_drm_dev_exit: + drm_dev_exit(idx); + + return err; +} + +/** + * pvr_ioctl_destroy_hwrt_dataset() - IOCTL to destroy a HWRT dataset + * @drm_dev: [IN] DRM device. + * @raw_args: [IN] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_destroy_hwrt_dataset_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_DESTROY_HWRT_DATASET. + * + * Return: + * * 0 on success, or + * * -%EINVAL if HWRT dataset not in object list. + */ +static int +pvr_ioctl_destroy_hwrt_dataset(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_destroy_hwrt_dataset_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_hwrt_dataset *hwrt; + + if (args->_padding_4) + return -EINVAL; + + hwrt = xa_erase(&pvr_file->hwrt_handles, args->handle); + if (!hwrt) + return -EINVAL; + + pvr_hwrt_dataset_put(hwrt); + return 0; +} + +/** + * pvr_ioctl_create_vm_context() - IOCTL to create a VM context + * @drm_dev: [IN] DRM device. + * @raw_args: [IN/OUT] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_create_vm_context_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_CREATE_VM_CONTEXT. + * + * Return: + * * 0 on success, or + * * Any error returned by pvr_vm_create_context(). + */ +static int +pvr_ioctl_create_vm_context(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_create_vm_context_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_vm_context *vm_ctx; + int idx; + int err; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + if (args->_padding_4) { + err = -EINVAL; + goto err_drm_dev_exit; + } + + vm_ctx = pvr_vm_create_context(pvr_file->pvr_dev, true); + if (IS_ERR(vm_ctx)) { + err = PTR_ERR(vm_ctx); + goto err_drm_dev_exit; + } + + /* Allocate object handle for userspace. */ + err = xa_alloc(&pvr_file->vm_ctx_handles, + &args->handle, + vm_ctx, + xa_limit_32b, + GFP_KERNEL); + if (err < 0) + goto err_cleanup; + + drm_dev_exit(idx); + + return 0; + +err_cleanup: + pvr_vm_context_put(vm_ctx); + +err_drm_dev_exit: + drm_dev_exit(idx); + + return err; +} + +/** + * pvr_ioctl_destroy_vm_context() - IOCTL to destroy a VM context +* @drm_dev: [IN] DRM device. +* @raw_args: [IN] Arguments passed to this IOCTL. This must be of type +* &struct drm_pvr_ioctl_destroy_vm_context_args. +* @file: [IN] DRM file private data. +* +* Called from userspace with %DRM_IOCTL_PVR_DESTROY_VM_CONTEXT. +* +* Return: +* * 0 on success, or +* * -%EINVAL if object not in object list. + */ +static int +pvr_ioctl_destroy_vm_context(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_destroy_vm_context_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_vm_context *vm_ctx; + + if (args->_padding_4) + return -EINVAL; + + vm_ctx = xa_erase(&pvr_file->vm_ctx_handles, args->handle); + if (!vm_ctx) + return -EINVAL; + + pvr_vm_context_put(vm_ctx); + return 0; +} + +/** + * pvr_ioctl_vm_map() - IOCTL to map buffer to GPU address space. + * @drm_dev: [IN] DRM device. + * @raw_args: [IN] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_vm_map_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_VM_MAP. + * + * Return: + * * 0 on success, + * * -%EINVAL if &drm_pvr_ioctl_vm_op_map_args.flags is not zero, + * * -%EINVAL if the bounds specified by &drm_pvr_ioctl_vm_op_map_args.offset + * and &drm_pvr_ioctl_vm_op_map_args.size are not valid or do not fall + * within the buffer object specified by + * &drm_pvr_ioctl_vm_op_map_args.handle, + * * -%EINVAL if the bounds specified by + * &drm_pvr_ioctl_vm_op_map_args.device_addr and + * &drm_pvr_ioctl_vm_op_map_args.size do not form a valid device-virtual + * address range which falls entirely within a single heap, or + * * -%ENOENT if &drm_pvr_ioctl_vm_op_map_args.handle does not refer to a + * valid PowerVR buffer object. + */ +static int +pvr_ioctl_vm_map(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct pvr_device *pvr_dev = to_pvr_device(drm_dev); + struct drm_pvr_ioctl_vm_map_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_vm_context *vm_ctx; + + struct pvr_gem_object *pvr_obj; + size_t pvr_obj_size; + + u64 offset_plus_size; + int idx; + int err; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + /* Initial validation of args. */ + if (args->_padding_14) { + err = -EINVAL; + goto err_drm_dev_exit; + } + + if (args->flags != 0 || + check_add_overflow(args->offset, args->size, &offset_plus_size) || + !pvr_find_heap_containing(pvr_dev, args->device_addr, args->size)) { + err = -EINVAL; + goto err_drm_dev_exit; + } + + vm_ctx = pvr_vm_context_lookup(pvr_file, args->vm_context_handle); + if (!vm_ctx) { + err = -EINVAL; + goto err_drm_dev_exit; + } + + pvr_obj = pvr_gem_object_from_handle(pvr_file, args->handle); + if (!pvr_obj) { + err = -ENOENT; + goto err_put_vm_context; + } + + pvr_obj_size = pvr_gem_object_size(pvr_obj); + + /* + * Validate offset and size args. The alignment of these will be + * checked when mapping; for now just check that they're within valid + * bounds + */ + if (args->offset >= pvr_obj_size || offset_plus_size > pvr_obj_size) { + err = -EINVAL; + goto err_put_pvr_object; + } + + err = pvr_vm_map(vm_ctx, pvr_obj, args->offset, + args->device_addr, args->size); + if (err) + goto err_put_pvr_object; + + /* + * In order to set up the mapping, we needed a reference to &pvr_obj. + * However, pvr_vm_map() obtains and stores its own reference, so we + * must release ours before returning. + */ + +err_put_pvr_object: + pvr_gem_object_put(pvr_obj); + +err_put_vm_context: + pvr_vm_context_put(vm_ctx); + +err_drm_dev_exit: + drm_dev_exit(idx); + + return err; +} + +/** + * pvr_ioctl_vm_unmap() - IOCTL to unmap buffer from GPU address space. + * @drm_dev: [IN] DRM device. + * @raw_args: [IN] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_vm_unmap_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_VM_UNMAP. + * + * Return: + * * 0 on success, + * * -%EINVAL if &drm_pvr_ioctl_vm_op_unmap_args.device_addr is not a valid + * device page-aligned device-virtual address, or + * * -%ENOENT if there is currently no PowerVR buffer object mapped at + * &drm_pvr_ioctl_vm_op_unmap_args.device_addr. + */ +static int +pvr_ioctl_vm_unmap(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_vm_unmap_args *args = raw_args; + struct pvr_file *pvr_file = to_pvr_file(file); + struct pvr_vm_context *vm_ctx; + int err; + + /* Initial validation of args. */ + if (args->_padding_4) + return -EINVAL; + + vm_ctx = pvr_vm_context_lookup(pvr_file, args->vm_context_handle); + if (!vm_ctx) + return -EINVAL; + + err = pvr_vm_unmap(vm_ctx, args->device_addr, args->size); + + pvr_vm_context_put(vm_ctx); + + return err; +} + +/* + * pvr_ioctl_submit_job() - IOCTL to submit a job to the GPU + * @drm_dev: [IN] DRM device. + * @raw_args: [IN] Arguments passed to this IOCTL. This must be of type + * &struct drm_pvr_ioctl_submit_job_args. + * @file: [IN] DRM file private data. + * + * Called from userspace with %DRM_IOCTL_PVR_SUBMIT_JOB. + * + * Return: + * * 0 on success, or + * * -%EINVAL if arguments are invalid. + */ +static int +pvr_ioctl_submit_jobs(struct drm_device *drm_dev, void *raw_args, + struct drm_file *file) +{ + struct drm_pvr_ioctl_submit_jobs_args *args = raw_args; + struct pvr_device *pvr_dev = to_pvr_device(drm_dev); + struct pvr_file *pvr_file = to_pvr_file(file); + int idx; + int err; + + if (!drm_dev_enter(drm_dev, &idx)) + return -EIO; + + err = pvr_submit_jobs(pvr_dev, pvr_file, args); + + drm_dev_exit(idx); + + return err; +} + +int +pvr_get_uobj(u64 usr_ptr, u32 usr_stride, u32 min_stride, u32 obj_size, void *out) +{ + if (usr_stride < min_stride) + return -EINVAL; + + return copy_struct_from_user(out, obj_size, u64_to_user_ptr(usr_ptr), usr_stride); +} + +int +pvr_set_uobj(u64 usr_ptr, u32 usr_stride, u32 min_stride, u32 obj_size, const void *in) +{ + if (usr_stride < min_stride) + return -EINVAL; + + if (copy_to_user(u64_to_user_ptr(usr_ptr), in, min_t(u32, usr_stride, obj_size))) + return -EFAULT; + + if (usr_stride > obj_size && + clear_user(u64_to_user_ptr(usr_ptr + obj_size), usr_stride - obj_size)) { + return -EFAULT; + } + + return 0; +} + +int +pvr_get_uobj_array(const struct drm_pvr_obj_array *in, u32 min_stride, u32 obj_size, void **out) +{ + int ret = 0; + void *out_alloc; + + if (in->stride < min_stride) + return -EINVAL; + + if (!in->count) + return 0; + + out_alloc = kvmalloc_array(in->count, obj_size, GFP_KERNEL); + if (!out_alloc) + return -ENOMEM; + + if (obj_size == in->stride) { + if (copy_from_user(out_alloc, u64_to_user_ptr(in->array), + (unsigned long)obj_size * in->count)) + ret = -EFAULT; + } else { + void __user *in_ptr = u64_to_user_ptr(in->array); + void *out_ptr = out_alloc; + + for (u32 i = 0; i < in->count; i++) { + ret = copy_struct_from_user(out_ptr, obj_size, in_ptr, in->stride); + if (ret) + break; + + out_ptr += obj_size; + in_ptr += in->stride; + } + } + + if (ret) { + kvfree(out_alloc); + return ret; + } + + *out = out_alloc; + return 0; +} + +int +pvr_set_uobj_array(const struct drm_pvr_obj_array *out, u32 min_stride, u32 obj_size, + const void *in) +{ + if (out->stride < min_stride) + return -EINVAL; + + if (!out->count) + return 0; + + if (obj_size == out->stride) { + if (copy_to_user(u64_to_user_ptr(out->array), in, + (unsigned long)obj_size * out->count)) + return -EFAULT; + } else { + u32 cpy_elem_size = min_t(u32, out->stride, obj_size); + void __user *out_ptr = u64_to_user_ptr(out->array); + const void *in_ptr = in; + + for (u32 i = 0; i < out->count; i++) { + if (copy_to_user(out_ptr, in_ptr, cpy_elem_size)) + return -EFAULT; + + out_ptr += obj_size; + in_ptr += out->stride; + } + + if (out->stride > obj_size && + clear_user(u64_to_user_ptr(out->array + obj_size), + out->stride - obj_size)) { + return -EFAULT; + } + } + + return 0; +} + +#define DRM_PVR_IOCTL(_name, _func, _flags) \ + DRM_IOCTL_DEF_DRV(PVR_##_name, pvr_ioctl_##_func, _flags) + +/* clang-format off */ + +static const struct drm_ioctl_desc pvr_drm_driver_ioctls[] = { + DRM_PVR_IOCTL(DEV_QUERY, dev_query, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(CREATE_BO, create_bo, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(GET_BO_MMAP_OFFSET, get_bo_mmap_offset, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(CREATE_VM_CONTEXT, create_vm_context, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(DESTROY_VM_CONTEXT, destroy_vm_context, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(VM_MAP, vm_map, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(VM_UNMAP, vm_unmap, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(CREATE_CONTEXT, create_context, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(DESTROY_CONTEXT, destroy_context, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(CREATE_FREE_LIST, create_free_list, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(DESTROY_FREE_LIST, destroy_free_list, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(CREATE_HWRT_DATASET, create_hwrt_dataset, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(DESTROY_HWRT_DATASET, destroy_hwrt_dataset, DRM_RENDER_ALLOW), + DRM_PVR_IOCTL(SUBMIT_JOBS, submit_jobs, DRM_RENDER_ALLOW), +}; + +/* clang-format on */ + +#undef DRM_PVR_IOCTL + +/** + * pvr_drm_driver_open() - Driver callback when a new &struct drm_file is opened + * @drm_dev: [IN] DRM device. + * @file: [IN] DRM file private data. + * + * Allocates powervr-specific file private data (&struct pvr_file). + * + * Registered in &pvr_drm_driver. + * + * Return: + * * 0 on success, + * * -%ENOMEM if the allocation of a &struct ipvr_file fails, or + * * Any error returned by pvr_memory_context_init(). + */ +static int +pvr_drm_driver_open(struct drm_device *drm_dev, struct drm_file *file) +{ + struct pvr_device *pvr_dev = to_pvr_device(drm_dev); + struct pvr_file *pvr_file; + + pvr_file = kzalloc(sizeof(*pvr_file), GFP_KERNEL); + if (!pvr_file) + return -ENOMEM; + + /* + * Store reference to base DRM file private data for use by + * from_pvr_file. + */ + pvr_file->file = file; + + /* + * Store reference to powervr-specific outer device struct in file + * private data for convenient access. + */ + pvr_file->pvr_dev = pvr_dev; + + xa_init_flags(&pvr_file->ctx_handles, XA_FLAGS_ALLOC1); + xa_init_flags(&pvr_file->free_list_handles, XA_FLAGS_ALLOC1); + xa_init_flags(&pvr_file->hwrt_handles, XA_FLAGS_ALLOC1); + xa_init_flags(&pvr_file->vm_ctx_handles, XA_FLAGS_ALLOC1); + + /* + * Store reference to powervr-specific file private data in DRM file + * private data. + */ + file->driver_priv = pvr_file; + + return 0; +} + +/** + * pvr_drm_driver_postclose() - One of the driver callbacks when a &struct + * drm_file is closed. + * @drm_dev: [IN] DRM device (unused). + * @file: [IN] DRM file private data. + * + * Frees powervr-specific file private data (&struct pvr_file). + * + * Registered in &pvr_drm_driver. + */ +static void +pvr_drm_driver_postclose(__always_unused struct drm_device *drm_dev, + struct drm_file *file) +{ + struct pvr_file *pvr_file = to_pvr_file(file); + + /* Kill remaining contexts. */ + pvr_destroy_contexts_for_file(pvr_file); + + /* Drop references on any remaining objects. */ + pvr_destroy_free_lists_for_file(pvr_file); + pvr_destroy_hwrt_datasets_for_file(pvr_file); + pvr_destroy_vm_contexts_for_file(pvr_file); + + kfree(pvr_file); + file->driver_priv = NULL; +} + +DEFINE_DRM_GEM_FOPS(pvr_drm_driver_fops); + +static struct drm_driver pvr_drm_driver = { + .driver_features = DRIVER_GEM | DRIVER_GEM_GPUVA | DRIVER_RENDER | + DRIVER_SYNCOBJ | DRIVER_SYNCOBJ_TIMELINE, + .open = pvr_drm_driver_open, + .postclose = pvr_drm_driver_postclose, + .ioctls = pvr_drm_driver_ioctls, + .num_ioctls = ARRAY_SIZE(pvr_drm_driver_ioctls), + .fops = &pvr_drm_driver_fops, +#if defined(CONFIG_DEBUG_FS) + .debugfs_init = pvr_debugfs_init, +#endif + + .name = PVR_DRIVER_NAME, + .desc = PVR_DRIVER_DESC, + .date = PVR_DRIVER_DATE, + .major = PVR_DRIVER_MAJOR, + .minor = PVR_DRIVER_MINOR, + .patchlevel = PVR_DRIVER_PATCHLEVEL, + + .gem_prime_import_sg_table = drm_gem_shmem_prime_import_sg_table, + .gem_create_object = pvr_gem_create_object, +}; + +static int +pvr_probe(struct platform_device *plat_dev) +{ + struct pvr_device *pvr_dev; + struct drm_device *drm_dev; + int err; + + pvr_dev = devm_drm_dev_alloc(&plat_dev->dev, &pvr_drm_driver, + struct pvr_device, base); + if (IS_ERR(pvr_dev)) + return PTR_ERR(pvr_dev); + + drm_dev = &pvr_dev->base; + + platform_set_drvdata(plat_dev, drm_dev); + + init_rwsem(&pvr_dev->reset_sem); + + pvr_context_device_init(pvr_dev); + + err = pvr_queue_device_init(pvr_dev); + if (err) + goto err_context_fini; + + devm_pm_runtime_enable(&plat_dev->dev); + pm_runtime_mark_last_busy(&plat_dev->dev); + + pm_runtime_set_autosuspend_delay(&plat_dev->dev, 50); + pm_runtime_use_autosuspend(&plat_dev->dev); + pvr_watchdog_init(pvr_dev); + + err = pvr_device_init(pvr_dev); + if (err) + goto err_watchdog_fini; + + err = drm_dev_register(drm_dev, 0); + if (err) + goto err_device_fini; + + xa_init_flags(&pvr_dev->free_list_ids, XA_FLAGS_ALLOC1); + xa_init_flags(&pvr_dev->job_ids, XA_FLAGS_ALLOC1); + + return 0; + +err_device_fini: + pvr_device_fini(pvr_dev); + +err_watchdog_fini: + pvr_watchdog_fini(pvr_dev); + + pvr_queue_device_fini(pvr_dev); + +err_context_fini: + pvr_context_device_fini(pvr_dev); + + return err; +} + +static int +pvr_remove(struct platform_device *plat_dev) +{ + struct drm_device *drm_dev = platform_get_drvdata(plat_dev); + struct pvr_device *pvr_dev = to_pvr_device(drm_dev); + + WARN_ON(!xa_empty(&pvr_dev->job_ids)); + WARN_ON(!xa_empty(&pvr_dev->free_list_ids)); + + xa_destroy(&pvr_dev->job_ids); + xa_destroy(&pvr_dev->free_list_ids); + + pm_runtime_suspend(drm_dev->dev); + pvr_device_fini(pvr_dev); + drm_dev_unplug(drm_dev); + pvr_watchdog_fini(pvr_dev); + pvr_queue_device_fini(pvr_dev); + pvr_context_device_fini(pvr_dev); + + return 0; +} + +static const struct of_device_id dt_match[] = { + { .compatible = "img,img-axe", .data = NULL }, + {} +}; +MODULE_DEVICE_TABLE(of, dt_match); + +static const struct dev_pm_ops pvr_pm_ops = { + RUNTIME_PM_OPS(pvr_power_device_suspend, pvr_power_device_resume, pvr_power_device_idle) +}; + +static struct platform_driver pvr_driver = { + .probe = pvr_probe, + .remove = pvr_remove, + .driver = { + .name = PVR_DRIVER_NAME, + .pm = &pvr_pm_ops, + .of_match_table = dt_match, + }, +}; +module_platform_driver(pvr_driver); + +MODULE_AUTHOR("Imagination Technologies Ltd."); +MODULE_DESCRIPTION(PVR_DRIVER_DESC); +MODULE_LICENSE("Dual MIT/GPL"); +MODULE_IMPORT_NS(DMA_BUF); +MODULE_FIRMWARE("powervr/rogue_33.15.11.3_v1.fw"); |