diff --git a/src/panfrost/drm-shim/meson.build b/src/panfrost/drm-shim/meson.build new file mode 100644 index 00000000000..b6976dffc50 --- /dev/null +++ b/src/panfrost/drm-shim/meson.build @@ -0,0 +1,29 @@ +# Copyright (C) 2021 Icecream95 +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice (including the next +# paragraph) shall be included in all copies or substantial portions of the +# Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +# IN THE SOFTWARE. + +libpanfrost_noop_drm_shim = shared_library( + ['panfrost_noop_drm_shim'], + 'panfrost_noop.c', + include_directories: [inc_include, inc_src], + dependencies: dep_drm_shim, + gnu_symbol_visibility : 'hidden', + install : true, +) diff --git a/src/panfrost/drm-shim/panfrost_noop.c b/src/panfrost/drm-shim/panfrost_noop.c new file mode 100644 index 00000000000..633e541edce --- /dev/null +++ b/src/panfrost/drm-shim/panfrost_noop.c @@ -0,0 +1,146 @@ +/* + * Copyright (C) 2021 Icecream95 + * Copyright (C) 2019 Google LLC + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include "drm-shim/drm_shim.h" +#include "drm-uapi/panfrost_drm.h" + +#include "util/u_math.h" + +bool drm_shim_driver_prefers_first_render_node = true; + +static int +pan_ioctl_noop(int fd, unsigned long request, void *arg) +{ + return 0; +} + +static int +pan_ioctl_get_param(int fd, unsigned long request, void *arg) +{ + struct drm_panfrost_get_param *gp = arg; + + switch (gp->param) { + case DRM_PANFROST_PARAM_GPU_PROD_ID: + /* Other GPUs can be set using PAN_GPU_ID */ + gp->value = 0x860; + return 0; + case DRM_PANFROST_PARAM_GPU_REVISION: + gp->value = 0; + return 0; + case DRM_PANFROST_PARAM_SHADER_PRESENT: + /* Assume an MP4 GPU */ + gp->value = 0xF; + return 0; + case DRM_PANFROST_PARAM_TEXTURE_FEATURES0: + gp->value = 0; + return 0; + case DRM_PANFROST_PARAM_THREAD_TLS_ALLOC: + gp->value = 0; + return 0; + case DRM_PANFROST_PARAM_TILER_FEATURES: + gp->value = 0x809; + return 0; + default: + fprintf(stderr, "Unknown DRM_IOCTL_PANFROST_GET_PARAM %d\n", gp->param); + return -1; + } +} + +static int +pan_ioctl_create_bo(int fd, unsigned long request, void *arg) +{ + struct drm_panfrost_create_bo *create = arg; + + struct shim_fd *shim_fd = drm_shim_fd_lookup(fd); + struct shim_bo *bo = calloc(1, sizeof(*bo)); + size_t size = ALIGN(create->size, 4096); + + drm_shim_bo_init(bo, size); + + create->handle = drm_shim_bo_get_handle(shim_fd, bo); + create->offset = bo->mem_addr; + + drm_shim_bo_put(bo); + + return 0; +} + +static int +pan_ioctl_mmap_bo(int fd, unsigned long request, void *arg) +{ + struct drm_panfrost_mmap_bo *mmap_bo = arg; + + struct shim_fd *shim_fd = drm_shim_fd_lookup(fd); + struct shim_bo *bo = drm_shim_bo_lookup(shim_fd, mmap_bo->handle); + + mmap_bo->offset = drm_shim_bo_get_mmap_offset(shim_fd, bo); + + return 0; +} + +static int +pan_ioctl_madvise(int fd, unsigned long request, void *arg) +{ + struct drm_panfrost_madvise *madvise = arg; + + madvise->retained = 1; + + return 0; +} + +static ioctl_fn_t driver_ioctls[] = { + [DRM_PANFROST_SUBMIT] = pan_ioctl_noop, + [DRM_PANFROST_WAIT_BO] = pan_ioctl_noop, + [DRM_PANFROST_CREATE_BO] = pan_ioctl_create_bo, + [DRM_PANFROST_MMAP_BO] = pan_ioctl_mmap_bo, + [DRM_PANFROST_GET_PARAM] = pan_ioctl_get_param, + [DRM_PANFROST_GET_BO_OFFSET] = pan_ioctl_noop, + [DRM_PANFROST_PERFCNT_ENABLE] = pan_ioctl_noop, + [DRM_PANFROST_PERFCNT_DUMP] = pan_ioctl_noop, + [DRM_PANFROST_MADVISE] = pan_ioctl_madvise, +}; + +void +drm_shim_driver_init(void) +{ + shim_device.bus_type = DRM_BUS_PLATFORM; + shim_device.driver_name = "panfrost"; + shim_device.driver_ioctls = driver_ioctls; + shim_device.driver_ioctl_count = ARRAY_SIZE(driver_ioctls); + + /* panfrost uses the DRM version to expose features, instead of getparam. */ + shim_device.version_major = 1; + shim_device.version_minor = 1; + shim_device.version_patchlevel = 0; + + drm_shim_override_file("DRIVER=panfrost\n" + "OF_FULLNAME=/soc/mali\n" + "OF_COMPATIBLE_0=arm,mali-t860\n" + "OF_COMPATIBLE_N=1\n", + "/sys/dev/char/%d:%d/device/uevent", DRM_MAJOR, + render_node_minor); +} diff --git a/src/panfrost/meson.build b/src/panfrost/meson.build index 7ce865c2d76..010aaa36ab3 100644 --- a/src/panfrost/meson.build +++ b/src/panfrost/meson.build @@ -74,3 +74,7 @@ endif if with_perfetto and (with_datasources.contains('panfrost') or with_datasources.contains('auto')) subdir('ds') endif + +if with_tools.contains('drm-shim') + subdir('drm-shim') +endif