Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / fb / ramgf100.c
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgf100.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgf100.c
new file mode 100644 (file)
index 0000000..de9f395
--- /dev/null
@@ -0,0 +1,731 @@
+/*
+ * Copyright 2013 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 "gf100.h"
+#include "ramfuc.h"
+
+#include <core/device.h>
+#include <core/option.h>
+#include <subdev/bios.h>
+#include <subdev/bios/pll.h>
+#include <subdev/bios/rammap.h>
+#include <subdev/bios/timing.h>
+#include <subdev/clk.h>
+#include <subdev/clk/pll.h>
+#include <subdev/ltc.h>
+
+struct gf100_ramfuc {
+       struct ramfuc base;
+
+       struct ramfuc_reg r_0x10fe20;
+       struct ramfuc_reg r_0x10fe24;
+       struct ramfuc_reg r_0x137320;
+       struct ramfuc_reg r_0x137330;
+
+       struct ramfuc_reg r_0x132000;
+       struct ramfuc_reg r_0x132004;
+       struct ramfuc_reg r_0x132100;
+
+       struct ramfuc_reg r_0x137390;
+
+       struct ramfuc_reg r_0x10f290;
+       struct ramfuc_reg r_0x10f294;
+       struct ramfuc_reg r_0x10f298;
+       struct ramfuc_reg r_0x10f29c;
+       struct ramfuc_reg r_0x10f2a0;
+
+       struct ramfuc_reg r_0x10f300;
+       struct ramfuc_reg r_0x10f338;
+       struct ramfuc_reg r_0x10f340;
+       struct ramfuc_reg r_0x10f344;
+       struct ramfuc_reg r_0x10f348;
+
+       struct ramfuc_reg r_0x10f910;
+       struct ramfuc_reg r_0x10f914;
+
+       struct ramfuc_reg r_0x100b0c;
+       struct ramfuc_reg r_0x10f050;
+       struct ramfuc_reg r_0x10f090;
+       struct ramfuc_reg r_0x10f200;
+       struct ramfuc_reg r_0x10f210;
+       struct ramfuc_reg r_0x10f310;
+       struct ramfuc_reg r_0x10f314;
+       struct ramfuc_reg r_0x10f610;
+       struct ramfuc_reg r_0x10f614;
+       struct ramfuc_reg r_0x10f800;
+       struct ramfuc_reg r_0x10f808;
+       struct ramfuc_reg r_0x10f824;
+       struct ramfuc_reg r_0x10f830;
+       struct ramfuc_reg r_0x10f988;
+       struct ramfuc_reg r_0x10f98c;
+       struct ramfuc_reg r_0x10f990;
+       struct ramfuc_reg r_0x10f998;
+       struct ramfuc_reg r_0x10f9b0;
+       struct ramfuc_reg r_0x10f9b4;
+       struct ramfuc_reg r_0x10fb04;
+       struct ramfuc_reg r_0x10fb08;
+       struct ramfuc_reg r_0x137300;
+       struct ramfuc_reg r_0x137310;
+       struct ramfuc_reg r_0x137360;
+       struct ramfuc_reg r_0x1373ec;
+       struct ramfuc_reg r_0x1373f0;
+       struct ramfuc_reg r_0x1373f8;
+
+       struct ramfuc_reg r_0x61c140;
+       struct ramfuc_reg r_0x611200;
+
+       struct ramfuc_reg r_0x13d8f4;
+};
+
+struct gf100_ram {
+       struct nvkm_ram base;
+       struct gf100_ramfuc fuc;
+       struct nvbios_pll refpll;
+       struct nvbios_pll mempll;
+};
+
+static void
+gf100_ram_train(struct gf100_ramfuc *fuc, u32 magic)
+{
+       struct gf100_ram *ram = container_of(fuc, typeof(*ram), fuc);
+       struct nvkm_fb *pfb = nvkm_fb(ram);
+       u32 part = nv_rd32(pfb, 0x022438), i;
+       u32 mask = nv_rd32(pfb, 0x022554);
+       u32 addr = 0x110974;
+
+       ram_wr32(fuc, 0x10f910, magic);
+       ram_wr32(fuc, 0x10f914, magic);
+
+       for (i = 0; (magic & 0x80000000) && i < part; addr += 0x1000, i++) {
+               if (mask & (1 << i))
+                       continue;
+               ram_wait(fuc, addr, 0x0000000f, 0x00000000, 500000);
+       }
+}
+
+static int
+gf100_ram_calc(struct nvkm_fb *pfb, u32 freq)
+{
+       struct nvkm_clk *clk = nvkm_clk(pfb);
+       struct nvkm_bios *bios = nvkm_bios(pfb);
+       struct gf100_ram *ram = (void *)pfb->ram;
+       struct gf100_ramfuc *fuc = &ram->fuc;
+       struct nvbios_ramcfg cfg;
+       u8  ver, cnt, len, strap;
+       struct {
+               u32 data;
+               u8  size;
+       } rammap, ramcfg, timing;
+       int ref, div, out;
+       int from, mode;
+       int N1, M1, P;
+       int ret;
+
+       /* lookup memory config data relevant to the target frequency */
+       rammap.data = nvbios_rammapEm(bios, freq / 1000, &ver, &rammap.size,
+                                     &cnt, &ramcfg.size, &cfg);
+       if (!rammap.data || ver != 0x10 || rammap.size < 0x0e) {
+               nv_error(pfb, "invalid/missing rammap entry\n");
+               return -EINVAL;
+       }
+
+       /* locate specific data set for the attached memory */
+       strap = nvbios_ramcfg_index(nv_subdev(pfb));
+       if (strap >= cnt) {
+               nv_error(pfb, "invalid ramcfg strap\n");
+               return -EINVAL;
+       }
+
+       ramcfg.data = rammap.data + rammap.size + (strap * ramcfg.size);
+       if (!ramcfg.data || ver != 0x10 || ramcfg.size < 0x0e) {
+               nv_error(pfb, "invalid/missing ramcfg entry\n");
+               return -EINVAL;
+       }
+
+       /* lookup memory timings, if bios says they're present */
+       strap = nv_ro08(bios, ramcfg.data + 0x01);
+       if (strap != 0xff) {
+               timing.data = nvbios_timingEe(bios, strap, &ver, &timing.size,
+                                             &cnt, &len);
+               if (!timing.data || ver != 0x10 || timing.size < 0x19) {
+                       nv_error(pfb, "invalid/missing timing entry\n");
+                       return -EINVAL;
+               }
+       } else {
+               timing.data = 0;
+       }
+
+       ret = ram_init(fuc, pfb);
+       if (ret)
+               return ret;
+
+       /* determine current mclk configuration */
+       from = !!(ram_rd32(fuc, 0x1373f0) & 0x00000002); /*XXX: ok? */
+
+       /* determine target mclk configuration */
+       if (!(ram_rd32(fuc, 0x137300) & 0x00000100))
+               ref = clk->read(clk, nv_clk_src_sppll0);
+       else
+               ref = clk->read(clk, nv_clk_src_sppll1);
+       div = max(min((ref * 2) / freq, (u32)65), (u32)2) - 2;
+       out = (ref * 2) / (div + 2);
+       mode = freq != out;
+
+       ram_mask(fuc, 0x137360, 0x00000002, 0x00000000);
+
+       if ((ram_rd32(fuc, 0x132000) & 0x00000002) || 0 /*XXX*/) {
+               ram_nuke(fuc, 0x132000);
+               ram_mask(fuc, 0x132000, 0x00000002, 0x00000002);
+               ram_mask(fuc, 0x132000, 0x00000002, 0x00000000);
+       }
+
+       if (mode == 1) {
+               ram_nuke(fuc, 0x10fe20);
+               ram_mask(fuc, 0x10fe20, 0x00000002, 0x00000002);
+               ram_mask(fuc, 0x10fe20, 0x00000002, 0x00000000);
+       }
+
+// 0x00020034 // 0x0000000a
+       ram_wr32(fuc, 0x132100, 0x00000001);
+
+       if (mode == 1 && from == 0) {
+               /* calculate refpll */
+               ret = gt215_pll_calc(nv_subdev(pfb), &ram->refpll,
+                                    ram->mempll.refclk, &N1, NULL, &M1, &P);
+               if (ret <= 0) {
+                       nv_error(pfb, "unable to calc refpll\n");
+                       return ret ? ret : -ERANGE;
+               }
+
+               ram_wr32(fuc, 0x10fe20, 0x20010000);
+               ram_wr32(fuc, 0x137320, 0x00000003);
+               ram_wr32(fuc, 0x137330, 0x81200006);
+               ram_wr32(fuc, 0x10fe24, (P << 16) | (N1 << 8) | M1);
+               ram_wr32(fuc, 0x10fe20, 0x20010001);
+               ram_wait(fuc, 0x137390, 0x00020000, 0x00020000, 64000);
+
+               /* calculate mempll */
+               ret = gt215_pll_calc(nv_subdev(pfb), &ram->mempll, freq,
+                                    &N1, NULL, &M1, &P);
+               if (ret <= 0) {
+                       nv_error(pfb, "unable to calc refpll\n");
+                       return ret ? ret : -ERANGE;
+               }
+
+               ram_wr32(fuc, 0x10fe20, 0x20010005);
+               ram_wr32(fuc, 0x132004, (P << 16) | (N1 << 8) | M1);
+               ram_wr32(fuc, 0x132000, 0x18010101);
+               ram_wait(fuc, 0x137390, 0x00000002, 0x00000002, 64000);
+       } else
+       if (mode == 0) {
+               ram_wr32(fuc, 0x137300, 0x00000003);
+       }
+
+       if (from == 0) {
+               ram_nuke(fuc, 0x10fb04);
+               ram_mask(fuc, 0x10fb04, 0x0000ffff, 0x00000000);
+               ram_nuke(fuc, 0x10fb08);
+               ram_mask(fuc, 0x10fb08, 0x0000ffff, 0x00000000);
+               ram_wr32(fuc, 0x10f988, 0x2004ff00);
+               ram_wr32(fuc, 0x10f98c, 0x003fc040);
+               ram_wr32(fuc, 0x10f990, 0x20012001);
+               ram_wr32(fuc, 0x10f998, 0x00011a00);
+               ram_wr32(fuc, 0x13d8f4, 0x00000000);
+       } else {
+               ram_wr32(fuc, 0x10f988, 0x20010000);
+               ram_wr32(fuc, 0x10f98c, 0x00000000);
+               ram_wr32(fuc, 0x10f990, 0x20012001);
+               ram_wr32(fuc, 0x10f998, 0x00010a00);
+       }
+
+       if (from == 0) {
+// 0x00020039 // 0x000000ba
+       }
+
+// 0x0002003a // 0x00000002
+       ram_wr32(fuc, 0x100b0c, 0x00080012);
+// 0x00030014 // 0x00000000 // 0x02b5f070
+// 0x00030014 // 0x00010000 // 0x02b5f070
+       ram_wr32(fuc, 0x611200, 0x00003300);
+// 0x00020034 // 0x0000000a
+// 0x00030020 // 0x00000001 // 0x00000000
+
+       ram_mask(fuc, 0x10f200, 0x00000800, 0x00000000);
+       ram_wr32(fuc, 0x10f210, 0x00000000);
+       ram_nsec(fuc, 1000);
+       if (mode == 0)
+               gf100_ram_train(fuc, 0x000c1001);
+       ram_wr32(fuc, 0x10f310, 0x00000001);
+       ram_nsec(fuc, 1000);
+       ram_wr32(fuc, 0x10f090, 0x00000061);
+       ram_wr32(fuc, 0x10f090, 0xc000007f);
+       ram_nsec(fuc, 1000);
+
+       if (from == 0) {
+               ram_wr32(fuc, 0x10f824, 0x00007fd4);
+       } else {
+               ram_wr32(fuc, 0x1373ec, 0x00020404);
+       }
+
+       if (mode == 0) {
+               ram_mask(fuc, 0x10f808, 0x00080000, 0x00000000);
+               ram_mask(fuc, 0x10f200, 0x00008000, 0x00008000);
+               ram_wr32(fuc, 0x10f830, 0x41500010);
+               ram_mask(fuc, 0x10f830, 0x01000000, 0x00000000);
+               ram_mask(fuc, 0x132100, 0x00000100, 0x00000100);
+               ram_wr32(fuc, 0x10f050, 0xff000090);
+               ram_wr32(fuc, 0x1373ec, 0x00020f0f);
+               ram_wr32(fuc, 0x1373f0, 0x00000003);
+               ram_wr32(fuc, 0x137310, 0x81201616);
+               ram_wr32(fuc, 0x132100, 0x00000001);
+// 0x00020039 // 0x000000ba
+               ram_wr32(fuc, 0x10f830, 0x00300017);
+               ram_wr32(fuc, 0x1373f0, 0x00000001);
+               ram_wr32(fuc, 0x10f824, 0x00007e77);
+               ram_wr32(fuc, 0x132000, 0x18030001);
+               ram_wr32(fuc, 0x10f090, 0x4000007e);
+               ram_nsec(fuc, 2000);
+               ram_wr32(fuc, 0x10f314, 0x00000001);
+               ram_wr32(fuc, 0x10f210, 0x80000000);
+               ram_wr32(fuc, 0x10f338, 0x00300220);
+               ram_wr32(fuc, 0x10f300, 0x0000011d);
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f290, 0x02060505);
+               ram_wr32(fuc, 0x10f294, 0x34208288);
+               ram_wr32(fuc, 0x10f298, 0x44050411);
+               ram_wr32(fuc, 0x10f29c, 0x0000114c);
+               ram_wr32(fuc, 0x10f2a0, 0x42e10069);
+               ram_wr32(fuc, 0x10f614, 0x40044f77);
+               ram_wr32(fuc, 0x10f610, 0x40044f77);
+               ram_wr32(fuc, 0x10f344, 0x00600009);
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f348, 0x00700008);
+               ram_wr32(fuc, 0x61c140, 0x19240000);
+               ram_wr32(fuc, 0x10f830, 0x00300017);
+               gf100_ram_train(fuc, 0x80021001);
+               gf100_ram_train(fuc, 0x80081001);
+               ram_wr32(fuc, 0x10f340, 0x00500004);
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f830, 0x01300017);
+               ram_wr32(fuc, 0x10f830, 0x00300017);
+// 0x00030020 // 0x00000000 // 0x00000000
+// 0x00020034 // 0x0000000b
+               ram_wr32(fuc, 0x100b0c, 0x00080028);
+               ram_wr32(fuc, 0x611200, 0x00003330);
+       } else {
+               ram_wr32(fuc, 0x10f800, 0x00001800);
+               ram_wr32(fuc, 0x13d8f4, 0x00000000);
+               ram_wr32(fuc, 0x1373ec, 0x00020404);
+               ram_wr32(fuc, 0x1373f0, 0x00000003);
+               ram_wr32(fuc, 0x10f830, 0x40700010);
+               ram_wr32(fuc, 0x10f830, 0x40500010);
+               ram_wr32(fuc, 0x13d8f4, 0x00000000);
+               ram_wr32(fuc, 0x1373f8, 0x00000000);
+               ram_wr32(fuc, 0x132100, 0x00000101);
+               ram_wr32(fuc, 0x137310, 0x89201616);
+               ram_wr32(fuc, 0x10f050, 0xff000090);
+               ram_wr32(fuc, 0x1373ec, 0x00030404);
+               ram_wr32(fuc, 0x1373f0, 0x00000002);
+       // 0x00020039 // 0x00000011
+               ram_wr32(fuc, 0x132100, 0x00000001);
+               ram_wr32(fuc, 0x1373f8, 0x00002000);
+               ram_nsec(fuc, 2000);
+               ram_wr32(fuc, 0x10f808, 0x7aaa0050);
+               ram_wr32(fuc, 0x10f830, 0x00500010);
+               ram_wr32(fuc, 0x10f200, 0x00ce1000);
+               ram_wr32(fuc, 0x10f090, 0x4000007e);
+               ram_nsec(fuc, 2000);
+               ram_wr32(fuc, 0x10f314, 0x00000001);
+               ram_wr32(fuc, 0x10f210, 0x80000000);
+               ram_wr32(fuc, 0x10f338, 0x00300200);
+               ram_wr32(fuc, 0x10f300, 0x0000084d);
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f290, 0x0b343825);
+               ram_wr32(fuc, 0x10f294, 0x3483028e);
+               ram_wr32(fuc, 0x10f298, 0x440c0600);
+               ram_wr32(fuc, 0x10f29c, 0x0000214c);
+               ram_wr32(fuc, 0x10f2a0, 0x42e20069);
+               ram_wr32(fuc, 0x10f200, 0x00ce0000);
+               ram_wr32(fuc, 0x10f614, 0x60044e77);
+               ram_wr32(fuc, 0x10f610, 0x60044e77);
+               ram_wr32(fuc, 0x10f340, 0x00500000);
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f344, 0x00600228);
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f348, 0x00700000);
+               ram_wr32(fuc, 0x13d8f4, 0x00000000);
+               ram_wr32(fuc, 0x61c140, 0x09a40000);
+
+               gf100_ram_train(fuc, 0x800e1008);
+
+               ram_nsec(fuc, 1000);
+               ram_wr32(fuc, 0x10f800, 0x00001804);
+       // 0x00030020 // 0x00000000 // 0x00000000
+       // 0x00020034 // 0x0000000b
+               ram_wr32(fuc, 0x13d8f4, 0x00000000);
+               ram_wr32(fuc, 0x100b0c, 0x00080028);
+               ram_wr32(fuc, 0x611200, 0x00003330);
+               ram_nsec(fuc, 100000);
+               ram_wr32(fuc, 0x10f9b0, 0x05313f41);
+               ram_wr32(fuc, 0x10f9b4, 0x00002f50);
+
+               gf100_ram_train(fuc, 0x010c1001);
+       }
+
+       ram_mask(fuc, 0x10f200, 0x00000800, 0x00000800);
+// 0x00020016 // 0x00000000
+
+       if (mode == 0)
+               ram_mask(fuc, 0x132000, 0x00000001, 0x00000000);
+
+       return 0;
+}
+
+static int
+gf100_ram_prog(struct nvkm_fb *pfb)
+{
+       struct nvkm_device *device = nv_device(pfb);
+       struct gf100_ram *ram = (void *)pfb->ram;
+       struct gf100_ramfuc *fuc = &ram->fuc;
+       ram_exec(fuc, nvkm_boolopt(device->cfgopt, "NvMemExec", true));
+       return 0;
+}
+
+static void
+gf100_ram_tidy(struct nvkm_fb *pfb)
+{
+       struct gf100_ram *ram = (void *)pfb->ram;
+       struct gf100_ramfuc *fuc = &ram->fuc;
+       ram_exec(fuc, false);
+}
+
+extern const u8 gf100_pte_storage_type_map[256];
+
+void
+gf100_ram_put(struct nvkm_fb *pfb, struct nvkm_mem **pmem)
+{
+       struct nvkm_ltc *ltc = nvkm_ltc(pfb);
+       struct nvkm_mem *mem = *pmem;
+
+       *pmem = NULL;
+       if (unlikely(mem == NULL))
+               return;
+
+       mutex_lock(&pfb->base.mutex);
+       if (mem->tag)
+               ltc->tags_free(ltc, &mem->tag);
+       __nv50_ram_put(pfb, mem);
+       mutex_unlock(&pfb->base.mutex);
+
+       kfree(mem);
+}
+
+int
+gf100_ram_get(struct nvkm_fb *pfb, u64 size, u32 align, u32 ncmin,
+             u32 memtype, struct nvkm_mem **pmem)
+{
+       struct nvkm_mm *mm = &pfb->vram;
+       struct nvkm_mm_node *r;
+       struct nvkm_mem *mem;
+       int type = (memtype & 0x0ff);
+       int back = (memtype & 0x800);
+       const bool comp = gf100_pte_storage_type_map[type] != type;
+       int ret;
+
+       size  >>= 12;
+       align >>= 12;
+       ncmin >>= 12;
+       if (!ncmin)
+               ncmin = size;
+
+       mem = kzalloc(sizeof(*mem), GFP_KERNEL);
+       if (!mem)
+               return -ENOMEM;
+
+       INIT_LIST_HEAD(&mem->regions);
+       mem->size = size;
+
+       mutex_lock(&pfb->base.mutex);
+       if (comp) {
+               struct nvkm_ltc *ltc = nvkm_ltc(pfb);
+
+               /* compression only works with lpages */
+               if (align == (1 << (17 - 12))) {
+                       int n = size >> 5;
+                       ltc->tags_alloc(ltc, n, &mem->tag);
+               }
+
+               if (unlikely(!mem->tag))
+                       type = gf100_pte_storage_type_map[type];
+       }
+       mem->memtype = type;
+
+       do {
+               if (back)
+                       ret = nvkm_mm_tail(mm, 0, 1, size, ncmin, align, &r);
+               else
+                       ret = nvkm_mm_head(mm, 0, 1, size, ncmin, align, &r);
+               if (ret) {
+                       mutex_unlock(&pfb->base.mutex);
+                       pfb->ram->put(pfb, &mem);
+                       return ret;
+               }
+
+               list_add_tail(&r->rl_entry, &mem->regions);
+               size -= r->length;
+       } while (size);
+       mutex_unlock(&pfb->base.mutex);
+
+       r = list_first_entry(&mem->regions, struct nvkm_mm_node, rl_entry);
+       mem->offset = (u64)r->offset << 12;
+       *pmem = mem;
+       return 0;
+}
+
+int
+gf100_ram_create_(struct nvkm_object *parent, struct nvkm_object *engine,
+                 struct nvkm_oclass *oclass, u32 maskaddr, int size,
+                 void **pobject)
+{
+       struct nvkm_fb *pfb = nvkm_fb(parent);
+       struct nvkm_bios *bios = nvkm_bios(pfb);
+       struct nvkm_ram *ram;
+       const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
+       const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
+       u32 parts = nv_rd32(pfb, 0x022438);
+       u32 pmask = nv_rd32(pfb, maskaddr);
+       u32 bsize = nv_rd32(pfb, 0x10f20c);
+       u32 offset, length;
+       bool uniform = true;
+       int ret, part;
+
+       ret = nvkm_ram_create_(parent, engine, oclass, size, pobject);
+       ram = *pobject;
+       if (ret)
+               return ret;
+
+       nv_debug(pfb, "0x100800: 0x%08x\n", nv_rd32(pfb, 0x100800));
+       nv_debug(pfb, "parts 0x%08x mask 0x%08x\n", parts, pmask);
+
+       ram->type = nvkm_fb_bios_memtype(bios);
+       ram->ranks = (nv_rd32(pfb, 0x10f200) & 0x00000004) ? 2 : 1;
+
+       /* read amount of vram attached to each memory controller */
+       for (part = 0; part < parts; part++) {
+               if (!(pmask & (1 << part))) {
+                       u32 psize = nv_rd32(pfb, 0x11020c + (part * 0x1000));
+                       if (psize != bsize) {
+                               if (psize < bsize)
+                                       bsize = psize;
+                               uniform = false;
+                       }
+
+                       nv_debug(pfb, "%d: mem_amount 0x%08x\n", part, psize);
+                       ram->size += (u64)psize << 20;
+               }
+       }
+
+       /* if all controllers have the same amount attached, there's no holes */
+       if (uniform) {
+               offset = rsvd_head;
+               length = (ram->size >> 12) - rsvd_head - rsvd_tail;
+               ret = nvkm_mm_init(&pfb->vram, offset, length, 1);
+       } else {
+               /* otherwise, address lowest common amount from 0GiB */
+               ret = nvkm_mm_init(&pfb->vram, rsvd_head,
+                                  (bsize << 8) * parts - rsvd_head, 1);
+               if (ret)
+                       return ret;
+
+               /* and the rest starting from (8GiB + common_size) */
+               offset = (0x0200000000ULL >> 12) + (bsize << 8);
+               length = (ram->size >> 12) - ((bsize * parts) << 8) - rsvd_tail;
+
+               ret = nvkm_mm_init(&pfb->vram, offset, length, 1);
+               if (ret)
+                       nvkm_mm_fini(&pfb->vram);
+       }
+
+       if (ret)
+               return ret;
+
+       ram->get = gf100_ram_get;
+       ram->put = gf100_ram_put;
+       return 0;
+}
+
+static int
+gf100_ram_init(struct nvkm_object *object)
+{
+       struct nvkm_fb *pfb = (void *)object->parent;
+       struct gf100_ram *ram = (void *)object;
+       int ret, i;
+
+       ret = nvkm_ram_init(&ram->base);
+       if (ret)
+               return ret;
+
+       /* prepare for ddr link training, and load training patterns */
+       switch (ram->base.type) {
+       case NV_MEM_TYPE_GDDR5: {
+               static const u8  train0[] = {
+                       0x00, 0xff, 0x55, 0xaa, 0x33, 0xcc,
+                       0x00, 0xff, 0xff, 0x00, 0xff, 0x00,
+               };
+               static const u32 train1[] = {
+                       0x00000000, 0xffffffff,
+                       0x55555555, 0xaaaaaaaa,
+                       0x33333333, 0xcccccccc,
+                       0xf0f0f0f0, 0x0f0f0f0f,
+                       0x00ff00ff, 0xff00ff00,
+                       0x0000ffff, 0xffff0000,
+               };
+
+               for (i = 0; i < 0x30; i++) {
+                       nv_wr32(pfb, 0x10f968, 0x00000000 | (i << 8));
+                       nv_wr32(pfb, 0x10f96c, 0x00000000 | (i << 8));
+                       nv_wr32(pfb, 0x10f920, 0x00000100 | train0[i % 12]);
+                       nv_wr32(pfb, 0x10f924, 0x00000100 | train0[i % 12]);
+                       nv_wr32(pfb, 0x10f918,              train1[i % 12]);
+                       nv_wr32(pfb, 0x10f91c,              train1[i % 12]);
+                       nv_wr32(pfb, 0x10f920, 0x00000000 | train0[i % 12]);
+                       nv_wr32(pfb, 0x10f924, 0x00000000 | train0[i % 12]);
+                       nv_wr32(pfb, 0x10f918,              train1[i % 12]);
+                       nv_wr32(pfb, 0x10f91c,              train1[i % 12]);
+               }
+       }       break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int
+gf100_ram_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+              struct nvkm_oclass *oclass, void *data, u32 size,
+              struct nvkm_object **pobject)
+{
+       struct nvkm_bios *bios = nvkm_bios(parent);
+       struct gf100_ram *ram;
+       int ret;
+
+       ret = gf100_ram_create(parent, engine, oclass, 0x022554, &ram);
+       *pobject = nv_object(ram);
+       if (ret)
+               return ret;
+
+       ret = nvbios_pll_parse(bios, 0x0c, &ram->refpll);
+       if (ret) {
+               nv_error(ram, "mclk refpll data not found\n");
+               return ret;
+       }
+
+       ret = nvbios_pll_parse(bios, 0x04, &ram->mempll);
+       if (ret) {
+               nv_error(ram, "mclk pll data not found\n");
+               return ret;
+       }
+
+       switch (ram->base.type) {
+       case NV_MEM_TYPE_GDDR5:
+               ram->base.calc = gf100_ram_calc;
+               ram->base.prog = gf100_ram_prog;
+               ram->base.tidy = gf100_ram_tidy;
+               break;
+       default:
+               nv_warn(ram, "reclocking of this ram type unsupported\n");
+               return 0;
+       }
+
+       ram->fuc.r_0x10fe20 = ramfuc_reg(0x10fe20);
+       ram->fuc.r_0x10fe24 = ramfuc_reg(0x10fe24);
+       ram->fuc.r_0x137320 = ramfuc_reg(0x137320);
+       ram->fuc.r_0x137330 = ramfuc_reg(0x137330);
+
+       ram->fuc.r_0x132000 = ramfuc_reg(0x132000);
+       ram->fuc.r_0x132004 = ramfuc_reg(0x132004);
+       ram->fuc.r_0x132100 = ramfuc_reg(0x132100);
+
+       ram->fuc.r_0x137390 = ramfuc_reg(0x137390);
+
+       ram->fuc.r_0x10f290 = ramfuc_reg(0x10f290);
+       ram->fuc.r_0x10f294 = ramfuc_reg(0x10f294);
+       ram->fuc.r_0x10f298 = ramfuc_reg(0x10f298);
+       ram->fuc.r_0x10f29c = ramfuc_reg(0x10f29c);
+       ram->fuc.r_0x10f2a0 = ramfuc_reg(0x10f2a0);
+
+       ram->fuc.r_0x10f300 = ramfuc_reg(0x10f300);
+       ram->fuc.r_0x10f338 = ramfuc_reg(0x10f338);
+       ram->fuc.r_0x10f340 = ramfuc_reg(0x10f340);
+       ram->fuc.r_0x10f344 = ramfuc_reg(0x10f344);
+       ram->fuc.r_0x10f348 = ramfuc_reg(0x10f348);
+
+       ram->fuc.r_0x10f910 = ramfuc_reg(0x10f910);
+       ram->fuc.r_0x10f914 = ramfuc_reg(0x10f914);
+
+       ram->fuc.r_0x100b0c = ramfuc_reg(0x100b0c);
+       ram->fuc.r_0x10f050 = ramfuc_reg(0x10f050);
+       ram->fuc.r_0x10f090 = ramfuc_reg(0x10f090);
+       ram->fuc.r_0x10f200 = ramfuc_reg(0x10f200);
+       ram->fuc.r_0x10f210 = ramfuc_reg(0x10f210);
+       ram->fuc.r_0x10f310 = ramfuc_reg(0x10f310);
+       ram->fuc.r_0x10f314 = ramfuc_reg(0x10f314);
+       ram->fuc.r_0x10f610 = ramfuc_reg(0x10f610);
+       ram->fuc.r_0x10f614 = ramfuc_reg(0x10f614);
+       ram->fuc.r_0x10f800 = ramfuc_reg(0x10f800);
+       ram->fuc.r_0x10f808 = ramfuc_reg(0x10f808);
+       ram->fuc.r_0x10f824 = ramfuc_reg(0x10f824);
+       ram->fuc.r_0x10f830 = ramfuc_reg(0x10f830);
+       ram->fuc.r_0x10f988 = ramfuc_reg(0x10f988);
+       ram->fuc.r_0x10f98c = ramfuc_reg(0x10f98c);
+       ram->fuc.r_0x10f990 = ramfuc_reg(0x10f990);
+       ram->fuc.r_0x10f998 = ramfuc_reg(0x10f998);
+       ram->fuc.r_0x10f9b0 = ramfuc_reg(0x10f9b0);
+       ram->fuc.r_0x10f9b4 = ramfuc_reg(0x10f9b4);
+       ram->fuc.r_0x10fb04 = ramfuc_reg(0x10fb04);
+       ram->fuc.r_0x10fb08 = ramfuc_reg(0x10fb08);
+       ram->fuc.r_0x137310 = ramfuc_reg(0x137300);
+       ram->fuc.r_0x137310 = ramfuc_reg(0x137310);
+       ram->fuc.r_0x137360 = ramfuc_reg(0x137360);
+       ram->fuc.r_0x1373ec = ramfuc_reg(0x1373ec);
+       ram->fuc.r_0x1373f0 = ramfuc_reg(0x1373f0);
+       ram->fuc.r_0x1373f8 = ramfuc_reg(0x1373f8);
+
+       ram->fuc.r_0x61c140 = ramfuc_reg(0x61c140);
+       ram->fuc.r_0x611200 = ramfuc_reg(0x611200);
+
+       ram->fuc.r_0x13d8f4 = ramfuc_reg(0x13d8f4);
+       return 0;
+}
+
+struct nvkm_oclass
+gf100_ram_oclass = {
+       .handle = 0,
+       .ofuncs = &(struct nvkm_ofuncs) {
+               .ctor = gf100_ram_ctor,
+               .dtor = _nvkm_ram_dtor,
+               .init = gf100_ram_init,
+               .fini = _nvkm_ram_fini,
+       }
+};