diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c index 49b5ecb701e4..74db4d28930f 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gm20b.c @@ -41,16 +41,52 @@ const struct cvb_coef gm20b_cvb_coef[] = { /* 921600 */ { 2647676, -106455, 1632 }, }; +static const struct cvb_coef gm20b_na_cvb_coef[] = { + /* KHz, c0, c1, c2, c3, c4, c5 */ + /* 76800 */ { 814294, 8144, -940, 808, -21583, 226 }, + /* 153600 */ { 856185, 8144, -940, 808, -21583, 226 }, + /* 230400 */ { 898077, 8144, -940, 808, -21583, 226 }, + /* 307200 */ { 939968, 8144, -940, 808, -21583, 226 }, + /* 384000 */ { 981860, 8144, -940, 808, -21583, 226 }, + /* 460800 */ { 1023751, 8144, -940, 808, -21583, 226 }, + /* 537600 */ { 1065642, 8144, -940, 808, -21583, 226 }, + /* 614400 */ { 1107534, 8144, -940, 808, -21583, 226 }, + /* 691200 */ { 1149425, 8144, -940, 808, -21583, 226 }, + /* 768000 */ { 1191317, 8144, -940, 808, -21583, 226 }, + /* 844800 */ { 1233208, 8144, -940, 808, -21583, 226 }, + /* 921600 */ { 1275100, 8144, -940, 808, -21583, 226 }, + /* 998400 */ { 1316991, 8144, -940, 808, -21583, 226 }, +}; + +const u32 speedo_to_vmin[] = { + /* 0, 1, 2, 3, 4, */ + 950000, 840000, 818750, 840000, 810000, +}; + int gm20b_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt) { + struct nvkm_device_tegra *tdev = device->func->tegra(device); struct gk20a_volt *volt; + u32 vmin; + + if (tdev->gpu_speedo_id >= ARRAY_SIZE(speedo_to_vmin)) { + nvdev_error(device, "unsupported speedo %d\n", + tdev->gpu_speedo_id); + return -EINVAL; + } volt = kzalloc(sizeof(*volt), GFP_KERNEL); if (!volt) return -ENOMEM; *pvolt = &volt->base; - return _gk20a_volt_ctor(device, index, gm20b_cvb_coef, - ARRAY_SIZE(gm20b_cvb_coef), volt); + vmin = speedo_to_vmin[tdev->gpu_speedo_id]; + + if (tdev->gpu_speedo_id >= 1) + return gk20a_volt_ctor(device, index, gm20b_na_cvb_coef, + ARRAY_SIZE(gm20b_na_cvb_coef), vmin, volt); + else + return gk20a_volt_ctor(device, index, gm20b_cvb_coef, + ARRAY_SIZE(gm20b_cvb_coef), vmin, volt); } |