diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_perf.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_perf.c | 92 |
1 files changed, 89 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c index 670e3cb697e..922fb6b664e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_perf.c +++ b/drivers/gpu/drm/nouveau/nouveau_perf.c @@ -72,6 +72,68 @@ legacy_perf_init(struct drm_device *dev) pm->nr_perflvl = 1; } +static struct nouveau_pm_memtiming * +nouveau_perf_timing(struct drm_device *dev, struct bit_entry *P, + u16 memclk, u8 *entry, u8 recordlen, u8 entries) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_pm_engine *pm = &dev_priv->engine.pm; + struct nvbios *bios = &dev_priv->vbios; + u8 ramcfg; + int i; + + /* perf v2 has a separate "timing map" table, we have to match + * the target memory clock to a specific entry, *then* use + * ramcfg to select the correct subentry + */ + if (P->version == 2) { + u8 *tmap = ROMPTR(bios, P->data[4]); + if (!tmap) { + NV_DEBUG(dev, "no timing map pointer\n"); + return NULL; + } + + if (tmap[0] != 0x10) { + NV_WARN(dev, "timing map 0x%02x unknown\n", tmap[0]); + return NULL; + } + + entry = tmap + tmap[1]; + recordlen = tmap[2] + (tmap[4] * tmap[3]); + for (i = 0; i < tmap[5]; i++, entry += recordlen) { + if (memclk >= ROM16(entry[0]) && + memclk <= ROM16(entry[2])) + break; + } + + if (i == tmap[5]) { + NV_WARN(dev, "no match in timing map table\n"); + return NULL; + } + + entry += tmap[2]; + recordlen = tmap[3]; + entries = tmap[4]; + } + + ramcfg = (nv_rd32(dev, NV_PEXTDEV_BOOT_0) & 0x0000003c) >> 2; + if (bios->ram_restrict_tbl_ptr) + ramcfg = bios->data[bios->ram_restrict_tbl_ptr + ramcfg]; + + if (ramcfg >= entries) { + NV_WARN(dev, "ramcfg strap out of bounds!\n"); + return NULL; + } + + entry += ramcfg * recordlen; + if (entry[1] >= pm->memtimings.nr_timing) { + NV_WARN(dev, "timingset %d does not exist\n", entry[1]); + return NULL; + } + + return &pm->memtimings.timing[entry[1]]; +} + void nouveau_perf_init(struct drm_device *dev) { @@ -124,6 +186,8 @@ nouveau_perf_init(struct drm_device *dev) for (i = 0; i < entries; i++) { struct nouveau_pm_level *perflvl = &pm->perflvl[pm->nr_perflvl]; + perflvl->timing = NULL; + if (entry[0] == 0xff) { entry += recordlen; continue; @@ -174,9 +238,21 @@ nouveau_perf_init(struct drm_device *dev) #define subent(n) entry[perf[2] + ((n) * perf[3])] perflvl->fanspeed = 0; /*XXX*/ perflvl->voltage = entry[2]; - perflvl->core = (ROM16(subent(0)) & 0xfff) * 1000; - perflvl->shader = (ROM16(subent(1)) & 0xfff) * 1000; - perflvl->memory = (ROM16(subent(2)) & 0xfff) * 1000; + if (dev_priv->card_type == NV_50) { + perflvl->core = ROM16(subent(0)) & 0xfff; + perflvl->shader = ROM16(subent(1)) & 0xfff; + perflvl->memory = ROM16(subent(2)) & 0xfff; + } else { + perflvl->shader = ROM16(subent(3)) & 0xfff; + perflvl->core = perflvl->shader / 2; + perflvl->unk0a = ROM16(subent(4)) & 0xfff; + perflvl->memory = ROM16(subent(5)) & 0xfff; + } + + perflvl->core *= 1000; + perflvl->shader *= 1000; + perflvl->memory *= 1000; + perflvl->unk0a *= 1000; break; } @@ -190,6 +266,16 @@ nouveau_perf_init(struct drm_device *dev) } } + /* get the corresponding memory timings */ + if (version > 0x15) { + /* last 3 args are for < 0x40, ignored for >= 0x40 */ + perflvl->timing = + nouveau_perf_timing(dev, &P, + perflvl->memory / 1000, + entry + perf[3], + perf[5], perf[4]); + } + snprintf(perflvl->name, sizeof(perflvl->name), "performance_level_%d", i); perflvl->id = i; |