diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 799cd149745d000246dfe4a4bbc92c444cfde0f7..e1fb2c95eb900c9c950e029cd9d084d2816d0fc6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -401,10 +401,28 @@ struct nouveau_pm_threshold_temp {
s16 fan_boost;
};
+struct nouveau_pm_memtiming {
+ u32 reg_100220;
+ u32 reg_100224;
+ u32 reg_100228;
+ u32 reg_10022c;
+ u32 reg_100230;
+ u32 reg_100234;
+ u32 reg_100238;
+ u32 reg_10023c;
+};
+
+struct nouveau_pm_memtimings {
+ bool supported;
+ struct nouveau_pm_memtiming *timing;
+ int nr_timing;
+};
+
struct nouveau_pm_engine {
struct nouveau_pm_voltage voltage;
struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
int nr_perflvl;
+ struct nouveau_pm_memtimings memtimings;
struct nouveau_pm_temp_sensor_constants sensor_constants;
struct nouveau_pm_threshold_temp threshold_temp;
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 2db01f80f38e56ae62c9afd9ae2b6633d6ff4bb2..00b31b5e16cd1c8e69c34c153959ede9a10e285a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -648,3 +648,147 @@ nouveau_mem_gart_init(struct drm_device *dev)
return 0;
}
+void
+nouveau_mem_timing_init(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+ struct nouveau_pm_memtimings *memtimings = &pm->memtimings;
+ struct nvbios *bios = &dev_priv->vbios;
+ struct bit_entry P;
+ u8 tUNK_0, tUNK_1, tUNK_2;
+ u8 tRP; /* Byte 3 */
+ u8 tRAS; /* Byte 5 */
+ u8 tRFC; /* Byte 7 */
+ u8 tRC; /* Byte 9 */
+ u8 tUNK_10, tUNK_11, tUNK_12, tUNK_13, tUNK_14;
+ u8 tUNK_18, tUNK_19, tUNK_20, tUNK_21;
+ u8 *mem = NULL, *entry;
+ int i, recordlen, entries;
+
+ if (bios->type == NVBIOS_BIT) {
+ if (bit_table(dev, 'P', &P))
+ return;
+
+ if (P.version == 1)
+ mem = ROMPTR(bios, P.data[4]);
+ else
+ if (P.version == 2)
+ mem = ROMPTR(bios, P.data[8]);
+ else {
+ NV_WARN(dev, "unknown mem for BIT P %d\n", P.version);
+ }
+ } else {
+ NV_DEBUG(dev, "BMP version too old for memory\n");
+ return;
+ }
+
+ if (!mem) {
+ NV_DEBUG(dev, "memory timing table pointer invalid\n");
+ return;
+ }
+
+ if (mem[0] != 0x10) {
+ NV_WARN(dev, "memory timing table 0x%02x unknown\n", mem[0]);
+ return;
+ }
+
+ /* validate record length */
+ entries = mem[2];
+ recordlen = mem[3];
+ if (recordlen < 15) {
+ NV_ERROR(dev, "mem timing table length unknown: %d\n", mem[3]);
+ return;
+ }
+
+ /* parse vbios entries into common format */
+ memtimings->timing =
+ kcalloc(entries, sizeof(*memtimings->timing), GFP_KERNEL);
+ if (!memtimings->timing)
+ return;
+
+ entry = mem + mem[1];
+ for (i = 0; i < entries; i++, entry += recordlen) {
+ struct nouveau_pm_memtiming *timing = &pm->memtimings.timing[i];
+ if (entry[0] == 0)
+ continue;
+
+ tUNK_18 = 1;
+ tUNK_19 = 1;
+ tUNK_20 = 0;
+ tUNK_21 = 0;
+ switch (recordlen) {
+ case 0x21:
+ tUNK_21 = entry[21];
+ case 0x20:
+ tUNK_20 = entry[20];
+ case 0x19:
+ tUNK_19 = entry[19];
+ case 0x18:
+ tUNK_18 = entry[18];
+ default:
+ tUNK_0 = entry[0];
+ tUNK_1 = entry[1];
+ tUNK_2 = entry[2];
+ tRP = entry[3];
+ tRAS = entry[5];
+ tRFC = entry[7];
+ tRC = entry[9];
+ tUNK_10 = entry[10];
+ tUNK_11 = entry[11];
+ tUNK_12 = entry[12];
+ tUNK_13 = entry[13];
+ tUNK_14 = entry[14];
+ break;
+ }
+
+ timing->reg_100220 = (tRC << 24 | tRFC << 16 | tRAS << 8 | tRP);
+
+ /* XXX: I don't trust the -1's and +1's... they must come
+ * from somewhere! */
+ timing->reg_100224 = ((tUNK_0 + tUNK_19 + 1) << 24 |
+ tUNK_18 << 16 |
+ (tUNK_1 + tUNK_19 + 1) << 8 |
+ (tUNK_2 - 1));
+
+ timing->reg_100228 = (tUNK_12 << 16 | tUNK_11 << 8 | tUNK_10);
+ if(recordlen > 19) {
+ timing->reg_100228 += (tUNK_19 - 1) << 24;
+ } else {
+ timing->reg_100228 += tUNK_12 << 24;
+ }
+
+ /* XXX: reg_10022c */
+
+ timing->reg_100230 = (tUNK_20 << 24 | tUNK_21 << 16 |
+ tUNK_13 << 8 | tUNK_13);
+
+ /* XXX: +6? */
+ timing->reg_100234 = (tRAS << 24 | (tUNK_19 + 6) << 8 | tRC);
+ if(tUNK_10 > tUNK_11) {
+ timing->reg_100234 += tUNK_10 << 16;
+ } else {
+ timing->reg_100234 += tUNK_11 << 16;
+ }
+
+ /* XXX; reg_100238, reg_10023c */
+ NV_DEBUG(dev, "Entry %d: 220: %08x %08x %08x %08x\n", i,
+ timing->reg_100220, timing->reg_100224,
+ timing->reg_100228, timing->reg_10022c);
+ NV_DEBUG(dev, " 230: %08x %08x %08x %08x\n",
+ timing->reg_100230, timing->reg_100234,
+ timing->reg_100238, timing->reg_10023c);
+ }
+
+ memtimings->nr_timing = entries;
+ memtimings->supported = true;
+}
+
+void
+nouveau_mem_timing_fini(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_pm_memtimings *mem = &dev_priv->engine.pm.memtimings;
+
+ kfree(mem->timing);
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
index b1d3f4b26ebd61291bbf6fab7b04c16b701a3765..01437f1753a745c8de03c2dfcadf5abcc71e93b9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.c
@@ -451,6 +451,7 @@ nouveau_pm_init(struct drm_device *dev)
nouveau_volt_init(dev);
nouveau_perf_init(dev);
nouveau_temp_init(dev);
+ nouveau_mem_timing_init(dev);
NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
for (i = 0; i < pm->nr_perflvl; i++) {
@@ -491,9 +492,10 @@ nouveau_pm_fini(struct drm_device *dev)
if (pm->cur != &pm->boot)
nouveau_pm_perflvl_set(dev, &pm->boot);
+ nouveau_mem_timing_fini(dev);
+ nouveau_temp_fini(dev);
nouveau_perf_fini(dev);
nouveau_volt_fini(dev);
- nouveau_temp_fini(dev);
nouveau_hwmon_fini(dev);
nouveau_sysfs_fini(dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.h b/drivers/gpu/drm/nouveau/nouveau_pm.h
index 6ad0ca9db88f0d060e1af0395fd24a5f26702053..7504e3b8c023d83e4f089904d8b789c3abc16d82 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.h
@@ -42,6 +42,10 @@ int nouveau_voltage_gpio_set(struct drm_device *, int voltage);
void nouveau_perf_init(struct drm_device *);
void nouveau_perf_fini(struct drm_device *);
+/* nouveau_mem.c */
+void nouveau_mem_timing_init(struct drm_device *);
+void nouveau_mem_timing_fini(struct drm_device *);
+
/* nv04_pm.c */
int nv04_pm_clock_get(struct drm_device *, u32 id);
void *nv04_pm_clock_pre(struct drm_device *, u32 id, int khz);