diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/r535.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/fb/r535.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/r535.c new file mode 100644 index 0000000000..d325150101 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/r535.c @@ -0,0 +1,87 @@ +/* + * Copyright 2023 Red Hat Inc. + * + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 "priv.h" +#include "ram.h" + +#include <subdev/gsp.h> + +static const struct nvkm_ram_func +r535_fb_ram = { +}; + +static int +r535_fb_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) +{ + struct nvkm_gsp *gsp = fb->subdev.device->gsp; + struct nvkm_ram *ram; + int ret; + + if (!(ram = *pram = kzalloc(sizeof(*ram), GFP_KERNEL))) + return -ENOMEM; + + ram->func = &r535_fb_ram; + ram->fb = fb; + ram->type = NVKM_RAM_TYPE_UNKNOWN; /*TODO: pull this from GSP. */ + ram->size = gsp->fb.size; + ram->stolen = false; + mutex_init(&ram->mutex); + + for (int i = 0; i < gsp->fb.region_nr; i++) { + ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL, + gsp->fb.region[i].addr >> NVKM_RAM_MM_SHIFT, + gsp->fb.region[i].size >> NVKM_RAM_MM_SHIFT, + 1); + if (ret) + return ret; + } + + return 0; +} + +static void * +r535_fb_dtor(struct nvkm_fb *fb) +{ + kfree(fb->func); + return fb; +} + +int +r535_fb_new(const struct nvkm_fb_func *hw, + struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) +{ + struct nvkm_fb_func *rm; + int ret; + + if (!(rm = kzalloc(sizeof(*rm), GFP_KERNEL))) + return -ENOMEM; + + rm->dtor = r535_fb_dtor; + rm->sysmem.flush_page_init = hw->sysmem.flush_page_init; + rm->vidmem.size = hw->vidmem.size; + rm->ram_new = r535_fb_ram_new; + + ret = nvkm_fb_new_(rm, device, type, inst, pfb); + if (ret) + kfree(rm); + + return ret; +} |