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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_mem.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_mem.c647
1 files changed, 647 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
new file mode 100644
index 0000000..7e0ff10
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -0,0 +1,647 @@
+/*
+ * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
+ * Copyright 2005 Stephane Marchesin
+ *
+ * The Weather Channel (TM) funded Tungsten Graphics to develop the
+ * initial release of the Radeon 8500 driver under the XFree86 license.
+ * This notice must be preserved.
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS AND/OR THEIR SUPPLIERS 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 <bskeggs@redhat.com>
+ * Roy Spliet <r.spliet@student.tudelft.nl>
+ */
+
+#include "nouveau_drm.h"
+#include "nouveau_pm.h"
+
+#include <subdev/fb.h>
+
+static int
+nv40_mem_timing_calc(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_drm *drm = nouveau_drm(dev);
+
+ t->reg[0] = (e->tRP << 24 | e->tRAS << 16 | e->tRFC << 8 | e->tRC);
+
+ /* XXX: I don't trust the -1's and +1's... they must come
+ * from somewhere! */
+ t->reg[1] = (e->tWR + 2 + (t->tCWL - 1)) << 24 |
+ 1 << 16 |
+ (e->tWTR + 2 + (t->tCWL - 1)) << 8 |
+ (e->tCL + 2 - (t->tCWL - 1));
+
+ t->reg[2] = 0x20200000 |
+ ((t->tCWL - 1) << 24 |
+ e->tRRD << 16 |
+ e->tRCDWR << 8 |
+ e->tRCDRD);
+
+ NV_DEBUG(drm, "Entry %d: 220: %08x %08x %08x\n", t->id,
+ t->reg[0], t->reg[1], t->reg[2]);
+ return 0;
+}
+
+static int
+nv50_mem_timing_calc(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_device *device = nouveau_dev(dev);
+ struct nouveau_fb *pfb = nouveau_fb(device);
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct bit_entry P;
+ uint8_t unk18 = 1, unk20 = 0, unk21 = 0, tmp7_3;
+
+ if (bit_table(dev, 'P', &P))
+ return -EINVAL;
+
+ switch (min(len, (u8) 22)) {
+ case 22:
+ unk21 = e->tUNK_21;
+ case 21:
+ unk20 = e->tUNK_20;
+ case 20:
+ if (e->tCWL > 0)
+ t->tCWL = e->tCWL;
+ case 19:
+ unk18 = e->tUNK_18;
+ break;
+ }
+
+ t->reg[0] = (e->tRP << 24 | e->tRAS << 16 | e->tRFC << 8 | e->tRC);
+
+ t->reg[1] = (e->tWR + 2 + (t->tCWL - 1)) << 24 |
+ max(unk18, (u8) 1) << 16 |
+ (e->tWTR + 2 + (t->tCWL - 1)) << 8;
+
+ t->reg[2] = ((t->tCWL - 1) << 24 |
+ e->tRRD << 16 |
+ e->tRCDWR << 8 |
+ e->tRCDRD);
+
+ t->reg[4] = e->tUNK_13 << 8 | e->tUNK_13;
+
+ t->reg[5] = (e->tRFC << 24 | max(e->tRCDRD, e->tRCDWR) << 16 | e->tRP);
+
+ t->reg[8] = boot->reg[8] & 0xffffff00;
+
+ if (P.version == 1) {
+ t->reg[1] |= (e->tCL + 2 - (t->tCWL - 1));
+
+ t->reg[3] = (0x14 + e->tCL) << 24 |
+ 0x16 << 16 |
+ (e->tCL - 1) << 8 |
+ (e->tCL - 1);
+
+ t->reg[4] |= boot->reg[4] & 0xffff0000;
+
+ t->reg[6] = (0x33 - t->tCWL) << 16 |
+ t->tCWL << 8 |
+ (0x2e + e->tCL - t->tCWL);
+
+ t->reg[7] = 0x4000202 | (e->tCL - 1) << 16;
+
+ /* XXX: P.version == 1 only has DDR2 and GDDR3? */
+ if (pfb->ram.type == NV_MEM_TYPE_DDR2) {
+ t->reg[5] |= (e->tCL + 3) << 8;
+ t->reg[6] |= (t->tCWL - 2) << 8;
+ t->reg[8] |= (e->tCL - 4);
+ } else {
+ t->reg[5] |= (e->tCL + 2) << 8;
+ t->reg[6] |= t->tCWL << 8;
+ t->reg[8] |= (e->tCL - 2);
+ }
+ } else {
+ t->reg[1] |= (5 + e->tCL - (t->tCWL));
+
+ /* XXX: 0xb? 0x30? */
+ t->reg[3] = (0x30 + e->tCL) << 24 |
+ (boot->reg[3] & 0x00ff0000)|
+ (0xb + e->tCL) << 8 |
+ (e->tCL - 1);
+
+ t->reg[4] |= (unk20 << 24 | unk21 << 16);
+
+ /* XXX: +6? */
+ t->reg[5] |= (t->tCWL + 6) << 8;
+
+ t->reg[6] = (0x5a + e->tCL) << 16 |
+ (6 - e->tCL + t->tCWL) << 8 |
+ (0x50 + e->tCL - t->tCWL);
+
+ tmp7_3 = (boot->reg[7] & 0xff000000) >> 24;
+ t->reg[7] = (tmp7_3 << 24) |
+ ((tmp7_3 - 6 + e->tCL) << 16) |
+ 0x202;
+ }
+
+ NV_DEBUG(drm, "Entry %d: 220: %08x %08x %08x %08x\n", t->id,
+ t->reg[0], t->reg[1], t->reg[2], t->reg[3]);
+ NV_DEBUG(drm, " 230: %08x %08x %08x %08x\n",
+ t->reg[4], t->reg[5], t->reg[6], t->reg[7]);
+ NV_DEBUG(drm, " 240: %08x\n", t->reg[8]);
+ return 0;
+}
+
+static int
+nvc0_mem_timing_calc(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_drm *drm = nouveau_drm(dev);
+
+ if (e->tCWL > 0)
+ t->tCWL = e->tCWL;
+
+ t->reg[0] = (e->tRP << 24 | (e->tRAS & 0x7f) << 17 |
+ e->tRFC << 8 | e->tRC);
+
+ t->reg[1] = (boot->reg[1] & 0xff000000) |
+ (e->tRCDWR & 0x0f) << 20 |
+ (e->tRCDRD & 0x0f) << 14 |
+ (t->tCWL << 7) |
+ (e->tCL & 0x0f);
+
+ t->reg[2] = (boot->reg[2] & 0xff0000ff) |
+ e->tWR << 16 | e->tWTR << 8;
+
+ t->reg[3] = (e->tUNK_20 & 0x1f) << 9 |
+ (e->tUNK_21 & 0xf) << 5 |
+ (e->tUNK_13 & 0x1f);
+
+ t->reg[4] = (boot->reg[4] & 0xfff00fff) |
+ (e->tRRD&0x1f) << 15;
+
+ NV_DEBUG(drm, "Entry %d: 290: %08x %08x %08x %08x\n", t->id,
+ t->reg[0], t->reg[1], t->reg[2], t->reg[3]);
+ NV_DEBUG(drm, " 2a0: %08x\n", t->reg[4]);
+ return 0;
+}
+
+/**
+ * MR generation methods
+ */
+
+static int
+nouveau_mem_ddr2_mr(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_drm *drm = nouveau_drm(dev);
+
+ t->drive_strength = 0;
+ if (len < 15) {
+ t->odt = boot->odt;
+ } else {
+ t->odt = e->RAM_FT1 & 0x07;
+ }
+
+ if (e->tCL >= NV_MEM_CL_DDR2_MAX) {
+ NV_WARN(drm, "(%u) Invalid tCL: %u", t->id, e->tCL);
+ return -ERANGE;
+ }
+
+ if (e->tWR >= NV_MEM_WR_DDR2_MAX) {
+ NV_WARN(drm, "(%u) Invalid tWR: %u", t->id, e->tWR);
+ return -ERANGE;
+ }
+
+ if (t->odt > 3) {
+ NV_WARN(drm, "(%u) Invalid odt value, assuming disabled: %x",
+ t->id, t->odt);
+ t->odt = 0;
+ }
+
+ t->mr[0] = (boot->mr[0] & 0x100f) |
+ (e->tCL) << 4 |
+ (e->tWR - 1) << 9;
+ t->mr[1] = (boot->mr[1] & 0x101fbb) |
+ (t->odt & 0x1) << 2 |
+ (t->odt & 0x2) << 5;
+
+ NV_DEBUG(drm, "(%u) MR: %08x", t->id, t->mr[0]);
+ return 0;
+}
+
+static const uint8_t nv_mem_wr_lut_ddr3[NV_MEM_WR_DDR3_MAX] = {
+ 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 5, 6, 6, 7, 7, 0, 0};
+
+static int
+nouveau_mem_ddr3_mr(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ u8 cl = e->tCL - 4;
+
+ t->drive_strength = 0;
+ if (len < 15) {
+ t->odt = boot->odt;
+ } else {
+ t->odt = e->RAM_FT1 & 0x07;
+ }
+
+ if (e->tCL >= NV_MEM_CL_DDR3_MAX || e->tCL < 4) {
+ NV_WARN(drm, "(%u) Invalid tCL: %u", t->id, e->tCL);
+ return -ERANGE;
+ }
+
+ if (e->tWR >= NV_MEM_WR_DDR3_MAX || e->tWR < 4) {
+ NV_WARN(drm, "(%u) Invalid tWR: %u", t->id, e->tWR);
+ return -ERANGE;
+ }
+
+ if (e->tCWL < 5) {
+ NV_WARN(drm, "(%u) Invalid tCWL: %u", t->id, e->tCWL);
+ return -ERANGE;
+ }
+
+ t->mr[0] = (boot->mr[0] & 0x180b) |
+ /* CAS */
+ (cl & 0x7) << 4 |
+ (cl & 0x8) >> 1 |
+ (nv_mem_wr_lut_ddr3[e->tWR]) << 9;
+ t->mr[1] = (boot->mr[1] & 0x101dbb) |
+ (t->odt & 0x1) << 2 |
+ (t->odt & 0x2) << 5 |
+ (t->odt & 0x4) << 7;
+ t->mr[2] = (boot->mr[2] & 0x20ffb7) | (e->tCWL - 5) << 3;
+
+ NV_DEBUG(drm, "(%u) MR: %08x %08x", t->id, t->mr[0], t->mr[2]);
+ return 0;
+}
+
+static const uint8_t nv_mem_cl_lut_gddr3[NV_MEM_CL_GDDR3_MAX] = {
+ 0, 0, 0, 0, 4, 5, 6, 7, 0, 1, 2, 3, 8, 9, 10, 11};
+static const uint8_t nv_mem_wr_lut_gddr3[NV_MEM_WR_GDDR3_MAX] = {
+ 0, 0, 0, 0, 0, 2, 3, 8, 9, 10, 11, 0, 0, 1, 1, 0, 3};
+
+static int
+nouveau_mem_gddr3_mr(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_drm *drm = nouveau_drm(dev);
+
+ if (len < 15) {
+ t->drive_strength = boot->drive_strength;
+ t->odt = boot->odt;
+ } else {
+ t->drive_strength = (e->RAM_FT1 & 0x30) >> 4;
+ t->odt = e->RAM_FT1 & 0x07;
+ }
+
+ if (e->tCL >= NV_MEM_CL_GDDR3_MAX) {
+ NV_WARN(drm, "(%u) Invalid tCL: %u", t->id, e->tCL);
+ return -ERANGE;
+ }
+
+ if (e->tWR >= NV_MEM_WR_GDDR3_MAX) {
+ NV_WARN(drm, "(%u) Invalid tWR: %u", t->id, e->tWR);
+ return -ERANGE;
+ }
+
+ if (t->odt > 3) {
+ NV_WARN(drm, "(%u) Invalid odt value, assuming autocal: %x",
+ t->id, t->odt);
+ t->odt = 0;
+ }
+
+ t->mr[0] = (boot->mr[0] & 0xe0b) |
+ /* CAS */
+ ((nv_mem_cl_lut_gddr3[e->tCL] & 0x7) << 4) |
+ ((nv_mem_cl_lut_gddr3[e->tCL] & 0x8) >> 2);
+ t->mr[1] = (boot->mr[1] & 0x100f40) | t->drive_strength |
+ (t->odt << 2) |
+ (nv_mem_wr_lut_gddr3[e->tWR] & 0xf) << 4;
+ t->mr[2] = boot->mr[2];
+
+ NV_DEBUG(drm, "(%u) MR: %08x %08x %08x", t->id,
+ t->mr[0], t->mr[1], t->mr[2]);
+ return 0;
+}
+
+static int
+nouveau_mem_gddr5_mr(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_tbl_entry *e, u8 len,
+ struct nouveau_pm_memtiming *boot,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_drm *drm = nouveau_drm(dev);
+
+ if (len < 15) {
+ t->drive_strength = boot->drive_strength;
+ t->odt = boot->odt;
+ } else {
+ t->drive_strength = (e->RAM_FT1 & 0x30) >> 4;
+ t->odt = e->RAM_FT1 & 0x03;
+ }
+
+ if (e->tCL >= NV_MEM_CL_GDDR5_MAX) {
+ NV_WARN(drm, "(%u) Invalid tCL: %u", t->id, e->tCL);
+ return -ERANGE;
+ }
+
+ if (e->tWR >= NV_MEM_WR_GDDR5_MAX) {
+ NV_WARN(drm, "(%u) Invalid tWR: %u", t->id, e->tWR);
+ return -ERANGE;
+ }
+
+ if (t->odt > 3) {
+ NV_WARN(drm, "(%u) Invalid odt value, assuming autocal: %x",
+ t->id, t->odt);
+ t->odt = 0;
+ }
+
+ t->mr[0] = (boot->mr[0] & 0x007) |
+ ((e->tCL - 5) << 3) |
+ ((e->tWR - 4) << 8);
+ t->mr[1] = (boot->mr[1] & 0x1007f0) |
+ t->drive_strength |
+ (t->odt << 2);
+
+ NV_DEBUG(drm, "(%u) MR: %08x %08x", t->id, t->mr[0], t->mr[1]);
+ return 0;
+}
+
+int
+nouveau_mem_timing_calc(struct drm_device *dev, u32 freq,
+ struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_device *device = nouveau_dev(dev);
+ struct nouveau_fb *pfb = nouveau_fb(device);
+ struct nouveau_pm *pm = nouveau_pm(dev);
+ struct nouveau_pm_memtiming *boot = &pm->boot.timing;
+ struct nouveau_pm_tbl_entry *e;
+ u8 ver, len, *ptr, *ramcfg;
+ int ret;
+
+ ptr = nouveau_perf_timing(dev, freq, &ver, &len);
+ if (!ptr || ptr[0] == 0x00) {
+ *t = *boot;
+ return 0;
+ }
+ e = (struct nouveau_pm_tbl_entry *)ptr;
+
+ t->tCWL = boot->tCWL;
+
+ switch (device->card_type) {
+ case NV_40:
+ ret = nv40_mem_timing_calc(dev, freq, e, len, boot, t);
+ break;
+ case NV_50:
+ ret = nv50_mem_timing_calc(dev, freq, e, len, boot, t);
+ break;
+ case NV_C0:
+ case NV_D0:
+ ret = nvc0_mem_timing_calc(dev, freq, e, len, boot, t);
+ break;
+ default:
+ ret = -ENODEV;
+ break;
+ }
+
+ switch (pfb->ram.type * !ret) {
+ case NV_MEM_TYPE_GDDR3:
+ ret = nouveau_mem_gddr3_mr(dev, freq, e, len, boot, t);
+ break;
+ case NV_MEM_TYPE_GDDR5:
+ ret = nouveau_mem_gddr5_mr(dev, freq, e, len, boot, t);
+ break;
+ case NV_MEM_TYPE_DDR2:
+ ret = nouveau_mem_ddr2_mr(dev, freq, e, len, boot, t);
+ break;
+ case NV_MEM_TYPE_DDR3:
+ ret = nouveau_mem_ddr3_mr(dev, freq, e, len, boot, t);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ ramcfg = nouveau_perf_ramcfg(dev, freq, &ver, &len);
+ if (ramcfg) {
+ int dll_off;
+
+ if (ver == 0x00)
+ dll_off = !!(ramcfg[3] & 0x04);
+ else
+ dll_off = !!(ramcfg[2] & 0x40);
+
+ switch (pfb->ram.type) {
+ case NV_MEM_TYPE_GDDR3:
+ t->mr[1] &= ~0x00000040;
+ t->mr[1] |= 0x00000040 * dll_off;
+ break;
+ default:
+ t->mr[1] &= ~0x00000001;
+ t->mr[1] |= 0x00000001 * dll_off;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+void
+nouveau_mem_timing_read(struct drm_device *dev, struct nouveau_pm_memtiming *t)
+{
+ struct nouveau_device *device = nouveau_dev(dev);
+ struct nouveau_fb *pfb = nouveau_fb(device);
+ u32 timing_base, timing_regs, mr_base;
+ int i;
+
+ if (device->card_type >= 0xC0) {
+ timing_base = 0x10f290;
+ mr_base = 0x10f300;
+ } else {
+ timing_base = 0x100220;
+ mr_base = 0x1002c0;
+ }
+
+ t->id = -1;
+
+ switch (device->card_type) {
+ case NV_50:
+ timing_regs = 9;
+ break;
+ case NV_C0:
+ case NV_D0:
+ timing_regs = 5;
+ break;
+ case NV_30:
+ case NV_40:
+ timing_regs = 3;
+ break;
+ default:
+ timing_regs = 0;
+ return;
+ }
+ for(i = 0; i < timing_regs; i++)
+ t->reg[i] = nv_rd32(device, timing_base + (0x04 * i));
+
+ t->tCWL = 0;
+ if (device->card_type < NV_C0) {
+ t->tCWL = ((nv_rd32(device, 0x100228) & 0x0f000000) >> 24) + 1;
+ } else if (device->card_type <= NV_D0) {
+ t->tCWL = ((nv_rd32(device, 0x10f294) & 0x00000f80) >> 7);
+ }
+
+ t->mr[0] = nv_rd32(device, mr_base);
+ t->mr[1] = nv_rd32(device, mr_base + 0x04);
+ t->mr[2] = nv_rd32(device, mr_base + 0x20);
+ t->mr[3] = nv_rd32(device, mr_base + 0x24);
+
+ t->odt = 0;
+ t->drive_strength = 0;
+
+ switch (pfb->ram.type) {
+ case NV_MEM_TYPE_DDR3:
+ t->odt |= (t->mr[1] & 0x200) >> 7;
+ case NV_MEM_TYPE_DDR2:
+ t->odt |= (t->mr[1] & 0x04) >> 2 |
+ (t->mr[1] & 0x40) >> 5;
+ break;
+ case NV_MEM_TYPE_GDDR3:
+ case NV_MEM_TYPE_GDDR5:
+ t->drive_strength = t->mr[1] & 0x03;
+ t->odt = (t->mr[1] & 0x0c) >> 2;
+ break;
+ default:
+ break;
+ }
+}
+
+int
+nouveau_mem_exec(struct nouveau_mem_exec_func *exec,
+ struct nouveau_pm_level *perflvl)
+{
+ struct nouveau_drm *drm = nouveau_drm(exec->dev);
+ struct nouveau_device *device = nouveau_dev(exec->dev);
+ struct nouveau_fb *pfb = nouveau_fb(device);
+ struct nouveau_pm_memtiming *info = &perflvl->timing;
+ u32 tMRD = 1000, tCKSRE = 0, tCKSRX = 0, tXS = 0, tDLLK = 0;
+ u32 mr[3] = { info->mr[0], info->mr[1], info->mr[2] };
+ u32 mr1_dlloff;
+
+ switch (pfb->ram.type) {
+ case NV_MEM_TYPE_DDR2:
+ tDLLK = 2000;
+ mr1_dlloff = 0x00000001;
+ break;
+ case NV_MEM_TYPE_DDR3:
+ tDLLK = 12000;
+ tCKSRE = 2000;
+ tXS = 1000;
+ mr1_dlloff = 0x00000001;
+ break;
+ case NV_MEM_TYPE_GDDR3:
+ tDLLK = 40000;
+ mr1_dlloff = 0x00000040;
+ break;
+ default:
+ NV_ERROR(drm, "cannot reclock unsupported memtype\n");
+ return -ENODEV;
+ }
+
+ /* fetch current MRs */
+ switch (pfb->ram.type) {
+ case NV_MEM_TYPE_GDDR3:
+ case NV_MEM_TYPE_DDR3:
+ mr[2] = exec->mrg(exec, 2);
+ default:
+ mr[1] = exec->mrg(exec, 1);
+ mr[0] = exec->mrg(exec, 0);
+ break;
+ }
+
+ /* DLL 'on' -> DLL 'off' mode, disable before entering self-refresh */
+ if (!(mr[1] & mr1_dlloff) && (info->mr[1] & mr1_dlloff)) {
+ exec->precharge(exec);
+ exec->mrs (exec, 1, mr[1] | mr1_dlloff);
+ exec->wait(exec, tMRD);
+ }
+
+ /* enter self-refresh mode */
+ exec->precharge(exec);
+ exec->refresh(exec);
+ exec->refresh(exec);
+ exec->refresh_auto(exec, false);
+ exec->refresh_self(exec, true);
+ exec->wait(exec, tCKSRE);
+
+ /* modify input clock frequency */
+ exec->clock_set(exec);
+
+ /* exit self-refresh mode */
+ exec->wait(exec, tCKSRX);
+ exec->precharge(exec);
+ exec->refresh_self(exec, false);
+ exec->refresh_auto(exec, true);
+ exec->wait(exec, tXS);
+ exec->wait(exec, tXS);
+
+ /* update MRs */
+ if (mr[2] != info->mr[2]) {
+ exec->mrs (exec, 2, info->mr[2]);
+ exec->wait(exec, tMRD);
+ }
+
+ if (mr[1] != info->mr[1]) {
+ /* need to keep DLL off until later, at least on GDDR3 */
+ exec->mrs (exec, 1, info->mr[1] | (mr[1] & mr1_dlloff));
+ exec->wait(exec, tMRD);
+ }
+
+ if (mr[0] != info->mr[0]) {
+ exec->mrs (exec, 0, info->mr[0]);
+ exec->wait(exec, tMRD);
+ }
+
+ /* update PFB timing registers */
+ exec->timing_set(exec);
+
+ /* DLL (enable + ) reset */
+ if (!(info->mr[1] & mr1_dlloff)) {
+ if (mr[1] & mr1_dlloff) {
+ exec->mrs (exec, 1, info->mr[1]);
+ exec->wait(exec, tMRD);
+ }
+ exec->mrs (exec, 0, info->mr[0] | 0x00000100);
+ exec->wait(exec, tMRD);
+ exec->mrs (exec, 0, info->mr[0] | 0x00000000);
+ exec->wait(exec, tMRD);
+ exec->wait(exec, tDLLK);
+ if (pfb->ram.type == NV_MEM_TYPE_GDDR3)
+ exec->precharge(exec);
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 13:59:36 +0000