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author | Scott Wood <scottwood@freescale.com> | 2014-04-07 23:49:35 (GMT) |
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committer | Scott Wood <scottwood@freescale.com> | 2014-04-07 23:49:35 (GMT) |
commit | 62b8c978ee6b8d135d9e7953221de58000dba986 (patch) | |
tree | 683b04b2e627f6710c22c151b23c8cc9a165315e /drivers/gpu/drm/nouveau/nouveau_perf.c | |
parent | 78fd82238d0e5716578c326404184a27ba67fd6e (diff) | |
download | linux-fsl-qoriq-62b8c978ee6b8d135d9e7953221de58000dba986.tar.xz |
Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_perf.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_perf.c | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c new file mode 100644 index 0000000..4fe883c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_perf.c @@ -0,0 +1,416 @@ +/* + * Copyright 2010 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. + * + * Authors: Ben Skeggs + */ + +#include <drm/drmP.h> + +#include "nouveau_drm.h" +#include "nouveau_reg.h" +#include "nouveau_pm.h" + +static u8 * +nouveau_perf_table(struct drm_device *dev, u8 *ver) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nvbios *bios = &drm->vbios; + struct bit_entry P; + + if (!bit_table(dev, 'P', &P) && P.version && P.version <= 2) { + u8 *perf = ROMPTR(dev, P.data[0]); + if (perf) { + *ver = perf[0]; + return perf; + } + } + + if (bios->type == NVBIOS_BMP) { + if (bios->data[bios->offset + 6] >= 0x25) { + u8 *perf = ROMPTR(dev, bios->data[bios->offset + 0x94]); + if (perf) { + *ver = perf[1]; + return perf; + } + } + } + + return NULL; +} + +static u8 * +nouveau_perf_entry(struct drm_device *dev, int idx, + u8 *ver, u8 *hdr, u8 *cnt, u8 *len) +{ + u8 *perf = nouveau_perf_table(dev, ver); + if (perf) { + if (*ver >= 0x12 && *ver < 0x20 && idx < perf[2]) { + *hdr = perf[3]; + *cnt = 0; + *len = 0; + return perf + perf[0] + idx * perf[3]; + } else + if (*ver >= 0x20 && *ver < 0x40 && idx < perf[2]) { + *hdr = perf[3]; + *cnt = perf[4]; + *len = perf[5]; + return perf + perf[1] + idx * (*hdr + (*cnt * *len)); + } else + if (*ver >= 0x40 && *ver < 0x41 && idx < perf[5]) { + *hdr = perf[2]; + *cnt = perf[4]; + *len = perf[3]; + return perf + perf[1] + idx * (*hdr + (*cnt * *len)); + } + } + return NULL; +} + +u8 * +nouveau_perf_rammap(struct drm_device *dev, u32 freq, + u8 *ver, u8 *hdr, u8 *cnt, u8 *len) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct bit_entry P; + u8 *perf, i = 0; + + if (!bit_table(dev, 'P', &P) && P.version == 2) { + u8 *rammap = ROMPTR(dev, P.data[4]); + if (rammap) { + u8 *ramcfg = rammap + rammap[1]; + + *ver = rammap[0]; + *hdr = rammap[2]; + *cnt = rammap[4]; + *len = rammap[3]; + + freq /= 1000; + for (i = 0; i < rammap[5]; i++) { + if (freq >= ROM16(ramcfg[0]) && + freq <= ROM16(ramcfg[2])) + return ramcfg; + + ramcfg += *hdr + (*cnt * *len); + } + } + + return NULL; + } + + if (nv_device(drm->device)->chipset == 0x49 || + nv_device(drm->device)->chipset == 0x4b) + freq /= 2; + + while ((perf = nouveau_perf_entry(dev, i++, ver, hdr, cnt, len))) { + if (*ver >= 0x20 && *ver < 0x25) { + if (perf[0] != 0xff && freq <= ROM16(perf[11]) * 1000) + break; + } else + if (*ver >= 0x25 && *ver < 0x40) { + if (perf[0] != 0xff && freq <= ROM16(perf[12]) * 1000) + break; + } + } + + if (perf) { + u8 *ramcfg = perf + *hdr; + *ver = 0x00; + *hdr = 0; + return ramcfg; + } + + return NULL; +} + +u8 * +nouveau_perf_ramcfg(struct drm_device *dev, u32 freq, u8 *ver, u8 *len) +{ + struct nouveau_device *device = nouveau_dev(dev); + struct nouveau_drm *drm = nouveau_drm(dev); + struct nvbios *bios = &drm->vbios; + u8 strap, hdr, cnt; + u8 *rammap; + + strap = (nv_rd32(device, 0x101000) & 0x0000003c) >> 2; + if (bios->ram_restrict_tbl_ptr) + strap = bios->data[bios->ram_restrict_tbl_ptr + strap]; + + rammap = nouveau_perf_rammap(dev, freq, ver, &hdr, &cnt, len); + if (rammap && strap < cnt) + return rammap + hdr + (strap * *len); + + return NULL; +} + +u8 * +nouveau_perf_timing(struct drm_device *dev, u32 freq, u8 *ver, u8 *len) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nvbios *bios = &drm->vbios; + struct bit_entry P; + u8 *perf, *timing = NULL; + u8 i = 0, hdr, cnt; + + if (bios->type == NVBIOS_BMP) { + while ((perf = nouveau_perf_entry(dev, i++, ver, &hdr, &cnt, + len)) && *ver == 0x15) { + if (freq <= ROM32(perf[5]) * 20) { + *ver = 0x00; + *len = 14; + return perf + 41; + } + } + return NULL; + } + + if (!bit_table(dev, 'P', &P)) { + if (P.version == 1) + timing = ROMPTR(dev, P.data[4]); + else + if (P.version == 2) + timing = ROMPTR(dev, P.data[8]); + } + + if (timing && timing[0] == 0x10) { + u8 *ramcfg = nouveau_perf_ramcfg(dev, freq, ver, len); + if (ramcfg && ramcfg[1] < timing[2]) { + *ver = timing[0]; + *len = timing[3]; + return timing + timing[1] + (ramcfg[1] * timing[3]); + } + } + + return NULL; +} + +static void +legacy_perf_init(struct drm_device *dev) +{ + struct nouveau_device *device = nouveau_dev(dev); + struct nouveau_drm *drm = nouveau_drm(dev); + struct nvbios *bios = &drm->vbios; + struct nouveau_pm *pm = nouveau_pm(dev); + char *perf, *entry, *bmp = &bios->data[bios->offset]; + int headerlen, use_straps; + + if (bmp[5] < 0x5 || bmp[6] < 0x14) { + NV_DEBUG(drm, "BMP version too old for perf\n"); + return; + } + + perf = ROMPTR(dev, bmp[0x73]); + if (!perf) { + NV_DEBUG(drm, "No memclock table pointer found.\n"); + return; + } + + switch (perf[0]) { + case 0x12: + case 0x14: + case 0x18: + use_straps = 0; + headerlen = 1; + break; + case 0x01: + use_straps = perf[1] & 1; + headerlen = (use_straps ? 8 : 2); + break; + default: + NV_WARN(drm, "Unknown memclock table version %x.\n", perf[0]); + return; + } + + entry = perf + headerlen; + if (use_straps) + entry += (nv_rd32(device, NV_PEXTDEV_BOOT_0) & 0x3c) >> 1; + + sprintf(pm->perflvl[0].name, "performance_level_0"); + pm->perflvl[0].memory = ROM16(entry[0]) * 20; + pm->nr_perflvl = 1; +} + +static void +nouveau_perf_voltage(struct drm_device *dev, struct nouveau_pm_level *perflvl) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct bit_entry P; + u8 *vmap; + int id; + + id = perflvl->volt_min; + perflvl->volt_min = 0; + + /* boards using voltage table version <0x40 store the voltage + * level directly in the perflvl entry as a multiple of 10mV + */ + if (drm->pm->voltage.version < 0x40) { + perflvl->volt_min = id * 10000; + perflvl->volt_max = perflvl->volt_min; + return; + } + + /* on newer ones, the perflvl stores an index into yet another + * vbios table containing a min/max voltage value for the perflvl + */ + if (bit_table(dev, 'P', &P) || P.version != 2 || P.length < 34) { + NV_DEBUG(drm, "where's our volt map table ptr? %d %d\n", + P.version, P.length); + return; + } + + vmap = ROMPTR(dev, P.data[32]); + if (!vmap) { + NV_DEBUG(drm, "volt map table pointer invalid\n"); + return; + } + + if (id < vmap[3]) { + vmap += vmap[1] + (vmap[2] * id); + perflvl->volt_min = ROM32(vmap[0]); + perflvl->volt_max = ROM32(vmap[4]); + } +} + +void +nouveau_perf_init(struct drm_device *dev) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_pm *pm = nouveau_pm(dev); + struct nvbios *bios = &drm->vbios; + u8 *perf, ver, hdr, cnt, len; + int ret, vid, i = -1; + + if (bios->type == NVBIOS_BMP && bios->data[bios->offset + 6] < 0x25) { + legacy_perf_init(dev); + return; + } + + perf = nouveau_perf_table(dev, &ver); + + while ((perf = nouveau_perf_entry(dev, ++i, &ver, &hdr, &cnt, &len))) { + struct nouveau_pm_level *perflvl = &pm->perflvl[pm->nr_perflvl]; + + if (perf[0] == 0xff) + continue; + + switch (ver) { + case 0x12: + case 0x13: + case 0x15: + perflvl->fanspeed = perf[55]; + if (hdr > 56) + perflvl->volt_min = perf[56]; + perflvl->core = ROM32(perf[1]) * 10; + perflvl->memory = ROM32(perf[5]) * 20; + break; + case 0x21: + case 0x23: + case 0x24: + perflvl->fanspeed = perf[4]; + perflvl->volt_min = perf[5]; + perflvl->shader = ROM16(perf[6]) * 1000; + perflvl->core = perflvl->shader; + perflvl->core += (signed char)perf[8] * 1000; + if (nv_device(drm->device)->chipset == 0x49 || + nv_device(drm->device)->chipset == 0x4b) + perflvl->memory = ROM16(perf[11]) * 1000; + else + perflvl->memory = ROM16(perf[11]) * 2000; + break; + case 0x25: + perflvl->fanspeed = perf[4]; + perflvl->volt_min = perf[5]; + perflvl->core = ROM16(perf[6]) * 1000; + perflvl->shader = ROM16(perf[10]) * 1000; + perflvl->memory = ROM16(perf[12]) * 1000; + break; + case 0x30: + perflvl->memscript = ROM16(perf[2]); + case 0x35: + perflvl->fanspeed = perf[6]; + perflvl->volt_min = perf[7]; + perflvl->core = ROM16(perf[8]) * 1000; + perflvl->shader = ROM16(perf[10]) * 1000; + perflvl->memory = ROM16(perf[12]) * 1000; + perflvl->vdec = ROM16(perf[16]) * 1000; + perflvl->dom6 = ROM16(perf[20]) * 1000; + break; + case 0x40: +#define subent(n) ((ROM16(perf[hdr + (n) * len]) & 0xfff) * 1000) + perflvl->fanspeed = 0; /*XXX*/ + perflvl->volt_min = perf[2]; + if (nv_device(drm->device)->card_type == NV_50) { + perflvl->core = subent(0); + perflvl->shader = subent(1); + perflvl->memory = subent(2); + perflvl->vdec = subent(3); + perflvl->unka0 = subent(4); + } else { + perflvl->hub06 = subent(0); + perflvl->hub01 = subent(1); + perflvl->copy = subent(2); + perflvl->shader = subent(3); + perflvl->rop = subent(4); + perflvl->memory = subent(5); + perflvl->vdec = subent(6); + perflvl->daemon = subent(10); + perflvl->hub07 = subent(11); + perflvl->core = perflvl->shader / 2; + } + break; + } + + /* make sure vid is valid */ + nouveau_perf_voltage(dev, perflvl); + if (pm->voltage.supported && perflvl->volt_min) { + vid = nouveau_volt_vid_lookup(dev, perflvl->volt_min); + if (vid < 0) { + NV_DEBUG(drm, "perflvl %d, bad vid\n", i); + continue; + } + } + + /* get the corresponding memory timings */ + ret = nouveau_mem_timing_calc(dev, perflvl->memory, + &perflvl->timing); + if (ret) { + NV_DEBUG(drm, "perflvl %d, bad timing: %d\n", i, ret); + continue; + } + + snprintf(perflvl->name, sizeof(perflvl->name), + "performance_level_%d", i); + perflvl->id = i; + + snprintf(perflvl->profile.name, sizeof(perflvl->profile.name), + "%d", perflvl->id); + perflvl->profile.func = &nouveau_pm_static_profile_func; + list_add_tail(&perflvl->profile.head, &pm->profiles); + + + pm->nr_perflvl++; + } +} + +void +nouveau_perf_fini(struct drm_device *dev) +{ +} |