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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c641
1 files changed, 641 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
new file mode 100644
index 000000000..7b1eb44ff
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
@@ -0,0 +1,641 @@
+/*
+ * 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
+ */
+#define nv50_ram(p) container_of((p), struct nv50_ram, base)
+#include "ram.h"
+#include "ramseq.h"
+#include "nv50.h"
+
+#include <core/option.h>
+#include <subdev/bios.h>
+#include <subdev/bios/perf.h>
+#include <subdev/bios/pll.h>
+#include <subdev/bios/rammap.h>
+#include <subdev/bios/timing.h>
+#include <subdev/clk/pll.h>
+#include <subdev/gpio.h>
+
+struct nv50_ramseq {
+ struct hwsq base;
+ struct hwsq_reg r_0x002504;
+ struct hwsq_reg r_0x004008;
+ struct hwsq_reg r_0x00400c;
+ struct hwsq_reg r_0x00c040;
+ struct hwsq_reg r_0x100200;
+ struct hwsq_reg r_0x100210;
+ struct hwsq_reg r_0x10021c;
+ struct hwsq_reg r_0x1002d0;
+ struct hwsq_reg r_0x1002d4;
+ struct hwsq_reg r_0x1002dc;
+ struct hwsq_reg r_0x10053c;
+ struct hwsq_reg r_0x1005a0;
+ struct hwsq_reg r_0x1005a4;
+ struct hwsq_reg r_0x100710;
+ struct hwsq_reg r_0x100714;
+ struct hwsq_reg r_0x100718;
+ struct hwsq_reg r_0x10071c;
+ struct hwsq_reg r_0x100da0;
+ struct hwsq_reg r_0x100e20;
+ struct hwsq_reg r_0x100e24;
+ struct hwsq_reg r_0x611200;
+ struct hwsq_reg r_timing[9];
+ struct hwsq_reg r_mr[4];
+ struct hwsq_reg r_gpio[4];
+};
+
+struct nv50_ram {
+ struct nvkm_ram base;
+ struct nv50_ramseq hwsq;
+};
+
+#define T(t) cfg->timing_10_##t
+static int
+nv50_ram_timing_calc(struct nv50_ram *ram, u32 *timing)
+{
+ struct nvbios_ramcfg *cfg = &ram->base.target.bios;
+ struct nvkm_subdev *subdev = &ram->base.fb->subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 cur2, cur4, cur7, cur8;
+ u8 unkt3b;
+
+ cur2 = nvkm_rd32(device, 0x100228);
+ cur4 = nvkm_rd32(device, 0x100230);
+ cur7 = nvkm_rd32(device, 0x10023c);
+ cur8 = nvkm_rd32(device, 0x100240);
+
+ switch ((!T(CWL)) * ram->base.type) {
+ case NVKM_RAM_TYPE_DDR2:
+ T(CWL) = T(CL) - 1;
+ break;
+ case NVKM_RAM_TYPE_GDDR3:
+ T(CWL) = ((cur2 & 0xff000000) >> 24) + 1;
+ break;
+ }
+
+ /* XXX: N=1 is not proper statistics */
+ if (device->chipset == 0xa0) {
+ unkt3b = 0x19 + ram->base.next->bios.rammap_00_16_40;
+ timing[6] = (0x2d + T(CL) - T(CWL) +
+ ram->base.next->bios.rammap_00_16_40) << 16 |
+ T(CWL) << 8 |
+ (0x2f + T(CL) - T(CWL));
+ } else {
+ unkt3b = 0x16;
+ timing[6] = (0x2b + T(CL) - T(CWL)) << 16 |
+ max_t(s8, T(CWL) - 2, 1) << 8 |
+ (0x2e + T(CL) - T(CWL));
+ }
+
+ timing[0] = (T(RP) << 24 | T(RAS) << 16 | T(RFC) << 8 | T(RC));
+ timing[1] = (T(WR) + 1 + T(CWL)) << 24 |
+ max_t(u8, T(18), 1) << 16 |
+ (T(WTR) + 1 + T(CWL)) << 8 |
+ (3 + T(CL) - T(CWL));
+ timing[2] = (T(CWL) - 1) << 24 |
+ (T(RRD) << 16) |
+ (T(RCDWR) << 8) |
+ T(RCDRD);
+ timing[3] = (unkt3b - 2 + T(CL)) << 24 |
+ unkt3b << 16 |
+ (T(CL) - 1) << 8 |
+ (T(CL) - 1);
+ timing[4] = (cur4 & 0xffff0000) |
+ T(13) << 8 |
+ T(13);
+ timing[5] = T(RFC) << 24 |
+ max_t(u8, T(RCDRD), T(RCDWR)) << 16 |
+ T(RP);
+ /* Timing 6 is already done above */
+ timing[7] = (cur7 & 0xff00ffff) | (T(CL) - 1) << 16;
+ timing[8] = (cur8 & 0xffffff00);
+
+ /* XXX: P.version == 1 only has DDR2 and GDDR3? */
+ if (ram->base.type == NVKM_RAM_TYPE_DDR2) {
+ timing[5] |= (T(CL) + 3) << 8;
+ timing[8] |= (T(CL) - 4);
+ } else
+ if (ram->base.type == NVKM_RAM_TYPE_GDDR3) {
+ timing[5] |= (T(CL) + 2) << 8;
+ timing[8] |= (T(CL) - 2);
+ }
+
+ nvkm_debug(subdev, " 220: %08x %08x %08x %08x\n",
+ timing[0], timing[1], timing[2], timing[3]);
+ nvkm_debug(subdev, " 230: %08x %08x %08x %08x\n",
+ timing[4], timing[5], timing[6], timing[7]);
+ nvkm_debug(subdev, " 240: %08x\n", timing[8]);
+ return 0;
+}
+
+static int
+nv50_ram_timing_read(struct nv50_ram *ram, u32 *timing)
+{
+ unsigned int i;
+ struct nvbios_ramcfg *cfg = &ram->base.target.bios;
+ struct nvkm_subdev *subdev = &ram->base.fb->subdev;
+ struct nvkm_device *device = subdev->device;
+
+ for (i = 0; i <= 8; i++)
+ timing[i] = nvkm_rd32(device, 0x100220 + (i * 4));
+
+ /* Derive the bare minimum for the MR calculation to succeed */
+ cfg->timing_ver = 0x10;
+ T(CL) = (timing[3] & 0xff) + 1;
+
+ switch (ram->base.type) {
+ case NVKM_RAM_TYPE_DDR2:
+ T(CWL) = T(CL) - 1;
+ break;
+ case NVKM_RAM_TYPE_GDDR3:
+ T(CWL) = ((timing[2] & 0xff000000) >> 24) + 1;
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ T(WR) = ((timing[1] >> 24) & 0xff) - 1 - T(CWL);
+
+ return 0;
+}
+#undef T
+
+static void
+nvkm_sddr2_dll_reset(struct nv50_ramseq *hwsq)
+{
+ ram_mask(hwsq, mr[0], 0x100, 0x100);
+ ram_mask(hwsq, mr[0], 0x100, 0x000);
+ ram_nsec(hwsq, 24000);
+}
+
+static void
+nv50_ram_gpio(struct nv50_ramseq *hwsq, u8 tag, u32 val)
+{
+ struct nvkm_gpio *gpio = hwsq->base.subdev->device->gpio;
+ struct dcb_gpio_func func;
+ u32 reg, sh, gpio_val;
+ int ret;
+
+ if (nvkm_gpio_get(gpio, 0, tag, DCB_GPIO_UNUSED) != val) {
+ ret = nvkm_gpio_find(gpio, 0, tag, DCB_GPIO_UNUSED, &func);
+ if (ret)
+ return;
+
+ reg = func.line >> 3;
+ sh = (func.line & 0x7) << 2;
+ gpio_val = ram_rd32(hwsq, gpio[reg]);
+
+ if (gpio_val & (8 << sh))
+ val = !val;
+ if (!(func.log[1] & 1))
+ val = !val;
+
+ ram_mask(hwsq, gpio[reg], (0x3 << sh), ((val | 0x2) << sh));
+ ram_nsec(hwsq, 20000);
+ }
+}
+
+static int
+nv50_ram_calc(struct nvkm_ram *base, u32 freq)
+{
+ struct nv50_ram *ram = nv50_ram(base);
+ struct nv50_ramseq *hwsq = &ram->hwsq;
+ struct nvkm_subdev *subdev = &ram->base.fb->subdev;
+ struct nvkm_bios *bios = subdev->device->bios;
+ struct nvbios_perfE perfE;
+ struct nvbios_pll mpll;
+ struct nvkm_ram_data *next;
+ u8 ver, hdr, cnt, len, strap, size;
+ u32 data;
+ u32 r100da0, r004008, unk710, unk714, unk718, unk71c;
+ int N1, M1, N2, M2, P;
+ int ret, i;
+ u32 timing[9];
+
+ next = &ram->base.target;
+ next->freq = freq;
+ ram->base.next = next;
+
+ /* lookup closest matching performance table entry for frequency */
+ i = 0;
+ do {
+ data = nvbios_perfEp(bios, i++, &ver, &hdr, &cnt,
+ &size, &perfE);
+ if (!data || (ver < 0x25 || ver >= 0x40) ||
+ (size < 2)) {
+ nvkm_error(subdev, "invalid/missing perftab entry\n");
+ return -EINVAL;
+ }
+ } while (perfE.memory < freq);
+
+ nvbios_rammapEp_from_perf(bios, data, hdr, &next->bios);
+
+ /* locate specific data set for the attached memory */
+ strap = nvbios_ramcfg_index(subdev);
+ if (strap >= cnt) {
+ nvkm_error(subdev, "invalid ramcfg strap\n");
+ return -EINVAL;
+ }
+
+ data = nvbios_rammapSp_from_perf(bios, data + hdr, size, strap,
+ &next->bios);
+ if (!data) {
+ nvkm_error(subdev, "invalid/missing rammap entry ");
+ return -EINVAL;
+ }
+
+ /* lookup memory timings, if bios says they're present */
+ if (next->bios.ramcfg_timing != 0xff) {
+ data = nvbios_timingEp(bios, next->bios.ramcfg_timing,
+ &ver, &hdr, &cnt, &len, &next->bios);
+ if (!data || ver != 0x10 || hdr < 0x12) {
+ nvkm_error(subdev, "invalid/missing timing entry "
+ "%02x %04x %02x %02x\n",
+ strap, data, ver, hdr);
+ return -EINVAL;
+ }
+ nv50_ram_timing_calc(ram, timing);
+ } else {
+ nv50_ram_timing_read(ram, timing);
+ }
+
+ ret = ram_init(hwsq, subdev);
+ if (ret)
+ return ret;
+
+ /* Determine ram-specific MR values */
+ ram->base.mr[0] = ram_rd32(hwsq, mr[0]);
+ ram->base.mr[1] = ram_rd32(hwsq, mr[1]);
+ ram->base.mr[2] = ram_rd32(hwsq, mr[2]);
+
+ switch (ram->base.type) {
+ case NVKM_RAM_TYPE_GDDR3:
+ ret = nvkm_gddr3_calc(&ram->base);
+ break;
+ default:
+ ret = -ENOSYS;
+ break;
+ }
+
+ if (ret) {
+ nvkm_error(subdev, "Could not calculate MR\n");
+ return ret;
+ }
+
+ if (subdev->device->chipset <= 0x96 && !next->bios.ramcfg_00_03_02)
+ ram_mask(hwsq, 0x100710, 0x00000200, 0x00000000);
+
+ /* Always disable this bit during reclock */
+ ram_mask(hwsq, 0x100200, 0x00000800, 0x00000000);
+
+ ram_wait_vblank(hwsq);
+ ram_wr32(hwsq, 0x611200, 0x00003300);
+ ram_wr32(hwsq, 0x002504, 0x00000001); /* block fifo */
+ ram_nsec(hwsq, 8000);
+ ram_setf(hwsq, 0x10, 0x00); /* disable fb */
+ ram_wait(hwsq, 0x00, 0x01); /* wait for fb disabled */
+ ram_nsec(hwsq, 2000);
+
+ if (next->bios.timing_10_ODT)
+ nv50_ram_gpio(hwsq, 0x2e, 1);
+
+ ram_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge */
+ ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */
+ ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */
+ ram_wr32(hwsq, 0x100210, 0x00000000); /* disable auto-refresh */
+ ram_wr32(hwsq, 0x1002dc, 0x00000001); /* enable self-refresh */
+
+ ret = nvbios_pll_parse(bios, 0x004008, &mpll);
+ mpll.vco2.max_freq = 0;
+ if (ret >= 0) {
+ ret = nv04_pll_calc(subdev, &mpll, freq,
+ &N1, &M1, &N2, &M2, &P);
+ if (ret <= 0)
+ ret = -EINVAL;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ /* XXX: 750MHz seems rather arbitrary */
+ if (freq <= 750000) {
+ r100da0 = 0x00000010;
+ r004008 = 0x90000000;
+ } else {
+ r100da0 = 0x00000000;
+ r004008 = 0x80000000;
+ }
+
+ r004008 |= (mpll.bias_p << 19) | (P << 22) | (P << 16);
+
+ ram_mask(hwsq, 0x00c040, 0xc000c000, 0x0000c000);
+ /* XXX: Is rammap_00_16_40 the DLL bit we've seen in GT215? Why does
+ * it have a different rammap bit from DLLoff? */
+ ram_mask(hwsq, 0x004008, 0x00004200, 0x00000200 |
+ next->bios.rammap_00_16_40 << 14);
+ ram_mask(hwsq, 0x00400c, 0x0000ffff, (N1 << 8) | M1);
+ ram_mask(hwsq, 0x004008, 0x91ff0000, r004008);
+
+ /* XXX: GDDR3 only? */
+ if (subdev->device->chipset >= 0x92)
+ ram_wr32(hwsq, 0x100da0, r100da0);
+
+ nv50_ram_gpio(hwsq, 0x18, !next->bios.ramcfg_FBVDDQ);
+ ram_nsec(hwsq, 64000); /*XXX*/
+ ram_nsec(hwsq, 32000); /*XXX*/
+
+ ram_mask(hwsq, 0x004008, 0x00002200, 0x00002000);
+
+ ram_wr32(hwsq, 0x1002dc, 0x00000000); /* disable self-refresh */
+ ram_wr32(hwsq, 0x1002d4, 0x00000001); /* disable self-refresh */
+ ram_wr32(hwsq, 0x100210, 0x80000000); /* enable auto-refresh */
+
+ ram_nsec(hwsq, 12000);
+
+ switch (ram->base.type) {
+ case NVKM_RAM_TYPE_DDR2:
+ ram_nuke(hwsq, mr[0]); /* force update */
+ ram_mask(hwsq, mr[0], 0x000, 0x000);
+ break;
+ case NVKM_RAM_TYPE_GDDR3:
+ ram_nuke(hwsq, mr[1]); /* force update */
+ ram_wr32(hwsq, mr[1], ram->base.mr[1]);
+ ram_nuke(hwsq, mr[0]); /* force update */
+ ram_wr32(hwsq, mr[0], ram->base.mr[0]);
+ break;
+ default:
+ break;
+ }
+
+ ram_mask(hwsq, timing[3], 0xffffffff, timing[3]);
+ ram_mask(hwsq, timing[1], 0xffffffff, timing[1]);
+ ram_mask(hwsq, timing[6], 0xffffffff, timing[6]);
+ ram_mask(hwsq, timing[7], 0xffffffff, timing[7]);
+ ram_mask(hwsq, timing[8], 0xffffffff, timing[8]);
+ ram_mask(hwsq, timing[0], 0xffffffff, timing[0]);
+ ram_mask(hwsq, timing[2], 0xffffffff, timing[2]);
+ ram_mask(hwsq, timing[4], 0xffffffff, timing[4]);
+ ram_mask(hwsq, timing[5], 0xffffffff, timing[5]);
+
+ if (!next->bios.ramcfg_00_03_02)
+ ram_mask(hwsq, 0x10021c, 0x00010000, 0x00000000);
+ ram_mask(hwsq, 0x100200, 0x00001000, !next->bios.ramcfg_00_04_02 << 12);
+
+ /* XXX: A lot of this could be "chipset"/"ram type" specific stuff */
+ unk710 = ram_rd32(hwsq, 0x100710) & ~0x00000100;
+ unk714 = ram_rd32(hwsq, 0x100714) & ~0xf0000020;
+ unk718 = ram_rd32(hwsq, 0x100718) & ~0x00000100;
+ unk71c = ram_rd32(hwsq, 0x10071c) & ~0x00000100;
+ if (subdev->device->chipset <= 0x96) {
+ unk710 &= ~0x0000006e;
+ unk714 &= ~0x00000100;
+
+ if (!next->bios.ramcfg_00_03_08)
+ unk710 |= 0x00000060;
+ if (!next->bios.ramcfg_FBVDDQ)
+ unk714 |= 0x00000100;
+ if ( next->bios.ramcfg_00_04_04)
+ unk710 |= 0x0000000e;
+ } else {
+ unk710 &= ~0x00000001;
+
+ if (!next->bios.ramcfg_00_03_08)
+ unk710 |= 0x00000001;
+ }
+
+ if ( next->bios.ramcfg_00_03_01)
+ unk71c |= 0x00000100;
+ if ( next->bios.ramcfg_00_03_02)
+ unk710 |= 0x00000100;
+ if (!next->bios.ramcfg_00_03_08)
+ unk714 |= 0x00000020;
+ if ( next->bios.ramcfg_00_04_04)
+ unk714 |= 0x70000000;
+ if ( next->bios.ramcfg_00_04_20)
+ unk718 |= 0x00000100;
+
+ ram_mask(hwsq, 0x100714, 0xffffffff, unk714);
+ ram_mask(hwsq, 0x10071c, 0xffffffff, unk71c);
+ ram_mask(hwsq, 0x100718, 0xffffffff, unk718);
+ ram_mask(hwsq, 0x100710, 0xffffffff, unk710);
+
+ /* XXX: G94 does not even test these regs in trace. Harmless we do it,
+ * but why is it omitted? */
+ if (next->bios.rammap_00_16_20) {
+ ram_wr32(hwsq, 0x1005a0, next->bios.ramcfg_00_07 << 16 |
+ next->bios.ramcfg_00_06 << 8 |
+ next->bios.ramcfg_00_05);
+ ram_wr32(hwsq, 0x1005a4, next->bios.ramcfg_00_09 << 8 |
+ next->bios.ramcfg_00_08);
+ ram_mask(hwsq, 0x10053c, 0x00001000, 0x00000000);
+ } else {
+ ram_mask(hwsq, 0x10053c, 0x00001000, 0x00001000);
+ }
+ ram_mask(hwsq, mr[1], 0xffffffff, ram->base.mr[1]);
+
+ if (!next->bios.timing_10_ODT)
+ nv50_ram_gpio(hwsq, 0x2e, 0);
+
+ /* Reset DLL */
+ if (!next->bios.ramcfg_DLLoff)
+ nvkm_sddr2_dll_reset(hwsq);
+
+ ram_setf(hwsq, 0x10, 0x01); /* enable fb */
+ ram_wait(hwsq, 0x00, 0x00); /* wait for fb enabled */
+ ram_wr32(hwsq, 0x611200, 0x00003330);
+ ram_wr32(hwsq, 0x002504, 0x00000000); /* un-block fifo */
+
+ if (next->bios.rammap_00_17_02)
+ ram_mask(hwsq, 0x100200, 0x00000800, 0x00000800);
+ if (!next->bios.rammap_00_16_40)
+ ram_mask(hwsq, 0x004008, 0x00004000, 0x00000000);
+ if (next->bios.ramcfg_00_03_02)
+ ram_mask(hwsq, 0x10021c, 0x00010000, 0x00010000);
+ if (subdev->device->chipset <= 0x96 && next->bios.ramcfg_00_03_02)
+ ram_mask(hwsq, 0x100710, 0x00000200, 0x00000200);
+
+ return 0;
+}
+
+static int
+nv50_ram_prog(struct nvkm_ram *base)
+{
+ struct nv50_ram *ram = nv50_ram(base);
+ struct nvkm_device *device = ram->base.fb->subdev.device;
+ ram_exec(&ram->hwsq, nvkm_boolopt(device->cfgopt, "NvMemExec", true));
+ return 0;
+}
+
+static void
+nv50_ram_tidy(struct nvkm_ram *base)
+{
+ struct nv50_ram *ram = nv50_ram(base);
+ ram_exec(&ram->hwsq, false);
+}
+
+static const struct nvkm_ram_func
+nv50_ram_func = {
+ .calc = nv50_ram_calc,
+ .prog = nv50_ram_prog,
+ .tidy = nv50_ram_tidy,
+};
+
+static u32
+nv50_fb_vram_rblock(struct nvkm_ram *ram)
+{
+ struct nvkm_subdev *subdev = &ram->fb->subdev;
+ struct nvkm_device *device = subdev->device;
+ int colbits, rowbitsa, rowbitsb, banks;
+ u64 rowsize, predicted;
+ u32 r0, r4, rt, rblock_size;
+
+ r0 = nvkm_rd32(device, 0x100200);
+ r4 = nvkm_rd32(device, 0x100204);
+ rt = nvkm_rd32(device, 0x100250);
+ nvkm_debug(subdev, "memcfg %08x %08x %08x %08x\n",
+ r0, r4, rt, nvkm_rd32(device, 0x001540));
+
+ colbits = (r4 & 0x0000f000) >> 12;
+ rowbitsa = ((r4 & 0x000f0000) >> 16) + 8;
+ rowbitsb = ((r4 & 0x00f00000) >> 20) + 8;
+ banks = 1 << (((r4 & 0x03000000) >> 24) + 2);
+
+ rowsize = ram->parts * banks * (1 << colbits) * 8;
+ predicted = rowsize << rowbitsa;
+ if (r0 & 0x00000004)
+ predicted += rowsize << rowbitsb;
+
+ if (predicted != ram->size) {
+ nvkm_warn(subdev, "memory controller reports %d MiB VRAM\n",
+ (u32)(ram->size >> 20));
+ }
+
+ rblock_size = rowsize;
+ if (rt & 1)
+ rblock_size *= 3;
+
+ nvkm_debug(subdev, "rblock %d bytes\n", rblock_size);
+ return rblock_size;
+}
+
+int
+nv50_ram_ctor(const struct nvkm_ram_func *func,
+ struct nvkm_fb *fb, struct nvkm_ram *ram)
+{
+ struct nvkm_device *device = fb->subdev.device;
+ struct nvkm_bios *bios = device->bios;
+ const u32 rsvd_head = ( 256 * 1024); /* vga memory */
+ const u32 rsvd_tail = (1024 * 1024); /* vbios etc */
+ u64 size = nvkm_rd32(device, 0x10020c);
+ enum nvkm_ram_type type = NVKM_RAM_TYPE_UNKNOWN;
+ int ret;
+
+ switch (nvkm_rd32(device, 0x100714) & 0x00000007) {
+ case 0: type = NVKM_RAM_TYPE_DDR1; break;
+ case 1:
+ if (nvkm_fb_bios_memtype(bios) == NVKM_RAM_TYPE_DDR3)
+ type = NVKM_RAM_TYPE_DDR3;
+ else
+ type = NVKM_RAM_TYPE_DDR2;
+ break;
+ case 2: type = NVKM_RAM_TYPE_GDDR3; break;
+ case 3: type = NVKM_RAM_TYPE_GDDR4; break;
+ case 4: type = NVKM_RAM_TYPE_GDDR5; break;
+ default:
+ break;
+ }
+
+ size = (size & 0x000000ff) << 32 | (size & 0xffffff00);
+
+ ret = nvkm_ram_ctor(func, fb, type, size, ram);
+ if (ret)
+ return ret;
+
+ ram->part_mask = (nvkm_rd32(device, 0x001540) & 0x00ff0000) >> 16;
+ ram->parts = hweight8(ram->part_mask);
+ ram->ranks = (nvkm_rd32(device, 0x100200) & 0x4) ? 2 : 1;
+ nvkm_mm_fini(&ram->vram);
+
+ return nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL,
+ rsvd_head >> NVKM_RAM_MM_SHIFT,
+ (size - rsvd_head - rsvd_tail) >> NVKM_RAM_MM_SHIFT,
+ nv50_fb_vram_rblock(ram) >> NVKM_RAM_MM_SHIFT);
+}
+
+int
+nv50_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
+{
+ struct nv50_ram *ram;
+ int ret, i;
+
+ if (!(ram = kzalloc(sizeof(*ram), GFP_KERNEL)))
+ return -ENOMEM;
+ *pram = &ram->base;
+
+ ret = nv50_ram_ctor(&nv50_ram_func, fb, &ram->base);
+ if (ret)
+ return ret;
+
+ ram->hwsq.r_0x002504 = hwsq_reg(0x002504);
+ ram->hwsq.r_0x00c040 = hwsq_reg(0x00c040);
+ ram->hwsq.r_0x004008 = hwsq_reg(0x004008);
+ ram->hwsq.r_0x00400c = hwsq_reg(0x00400c);
+ ram->hwsq.r_0x100200 = hwsq_reg(0x100200);
+ ram->hwsq.r_0x100210 = hwsq_reg(0x100210);
+ ram->hwsq.r_0x10021c = hwsq_reg(0x10021c);
+ ram->hwsq.r_0x1002d0 = hwsq_reg(0x1002d0);
+ ram->hwsq.r_0x1002d4 = hwsq_reg(0x1002d4);
+ ram->hwsq.r_0x1002dc = hwsq_reg(0x1002dc);
+ ram->hwsq.r_0x10053c = hwsq_reg(0x10053c);
+ ram->hwsq.r_0x1005a0 = hwsq_reg(0x1005a0);
+ ram->hwsq.r_0x1005a4 = hwsq_reg(0x1005a4);
+ ram->hwsq.r_0x100710 = hwsq_reg(0x100710);
+ ram->hwsq.r_0x100714 = hwsq_reg(0x100714);
+ ram->hwsq.r_0x100718 = hwsq_reg(0x100718);
+ ram->hwsq.r_0x10071c = hwsq_reg(0x10071c);
+ ram->hwsq.r_0x100da0 = hwsq_stride(0x100da0, 4, ram->base.part_mask);
+ ram->hwsq.r_0x100e20 = hwsq_reg(0x100e20);
+ ram->hwsq.r_0x100e24 = hwsq_reg(0x100e24);
+ ram->hwsq.r_0x611200 = hwsq_reg(0x611200);
+
+ for (i = 0; i < 9; i++)
+ ram->hwsq.r_timing[i] = hwsq_reg(0x100220 + (i * 0x04));
+
+ if (ram->base.ranks > 1) {
+ ram->hwsq.r_mr[0] = hwsq_reg2(0x1002c0, 0x1002c8);
+ ram->hwsq.r_mr[1] = hwsq_reg2(0x1002c4, 0x1002cc);
+ ram->hwsq.r_mr[2] = hwsq_reg2(0x1002e0, 0x1002e8);
+ ram->hwsq.r_mr[3] = hwsq_reg2(0x1002e4, 0x1002ec);
+ } else {
+ ram->hwsq.r_mr[0] = hwsq_reg(0x1002c0);
+ ram->hwsq.r_mr[1] = hwsq_reg(0x1002c4);
+ ram->hwsq.r_mr[2] = hwsq_reg(0x1002e0);
+ ram->hwsq.r_mr[3] = hwsq_reg(0x1002e4);
+ }
+
+ ram->hwsq.r_gpio[0] = hwsq_reg(0x00e104);
+ ram->hwsq.r_gpio[1] = hwsq_reg(0x00e108);
+ ram->hwsq.r_gpio[2] = hwsq_reg(0x00e120);
+ ram->hwsq.r_gpio[3] = hwsq_reg(0x00e124);
+
+ return 0;
+}