diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2023-05-25 03:30:59 +0300 |
|---|---|---|
| committer | Karol Herbst <kherbst@redhat.com> | 2023-07-06 18:22:33 +0300 |
| commit | 2c0c15a22fa044282e9d37de576de0dded7a3fbf (patch) | |
| tree | 0459ad9868ad606f4870a464f715fa7e391db0a1 /drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgp102.c | |
| parent | ba1efd8e33365d38fb657ea1fb2154e283adfaf3 (diff) | |
| download | linux-2c0c15a22fa044282e9d37de576de0dded7a3fbf.tar.xz | |
drm/nouveau/fb/gp102-ga100: switch to simpler vram size detection method
Also exposes this for use by upcoming GSP-RM initialisation code.
v2: add SPDX header
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230525003106.3853741-3-skeggsb@gmail.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgp102.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgp102.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgp102.c new file mode 100644 index 000000000000..8550f5e47347 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgp102.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: MIT +#include "ram.h" + +#include <subdev/bios.h> + +static const struct nvkm_ram_func +gp102_ram = { +}; + +int +gp102_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) +{ + enum nvkm_ram_type type = nvkm_fb_bios_memtype(fb->subdev.device->bios); + const u32 rsvd_head = ( 256 * 1024); /* vga memory */ + const u32 rsvd_tail = (1024 * 1024); /* vbios etc */ + u64 size = fb->func->vidmem.size(fb); + int ret; + + ret = nvkm_ram_new_(&gp102_ram, fb, type, size, pram); + if (ret) + return ret; + + nvkm_mm_fini(&(*pram)->vram); + + return nvkm_mm_init(&(*pram)->vram, NVKM_RAM_MM_NORMAL, + rsvd_head >> NVKM_RAM_MM_SHIFT, + (size - rsvd_head - rsvd_tail) >> NVKM_RAM_MM_SHIFT, + 1); + +} |