drm/nouveau/fb/ramnva3: Ressurect timing calculation code

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/ramcfg.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/ramcfg.h
index ae3f17d..8ead274 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/ramcfg.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/ramcfg.h
@@ -95,9 +95,29 @@ struct nvbios_ramcfg {
        union {
                struct {
                        unsigned timing_10_WR:8;
+                       unsigned timing_10_WTR:8;
                        unsigned timing_10_CL:8;
+                       unsigned timing_10_RC:8;
+                       /*empty: 4 */
+                       unsigned timing_10_RFC:8;        /* Byte 5 */
+                       /*empty: 6 */
+                       unsigned timing_10_RAS:8;        /* Byte 7 */
+                       /*empty: 8 */
+                       unsigned timing_10_RP:8;         /* Byte 9 */
+                       unsigned timing_10_RCDRD:8;
+                       unsigned timing_10_RCDWR:8;
+                       unsigned timing_10_RRD:8;
+                       unsigned timing_10_13:8;
                        unsigned timing_10_ODT:3;
+                       /* empty: 15 */
+                       unsigned timing_10_16:8;
+                       /* empty: 17 */
+                       unsigned timing_10_18:8;
                        unsigned timing_10_CWL:8;
+                       unsigned timing_10_20:8;
+                       unsigned timing_10_21:8;
+                       /* empty: 22, 23 */
+                       unsigned timing_10_24:8;
                };
                struct {
                        unsigned timing_20_2e_03:2;

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/timing.c b/drivers/gpu/drm/nouveau/core/subdev/bios/timing.c
index 46d955e..8521eca 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/timing.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/timing.c
@@ -93,10 +93,44 @@ nvbios_timingEp(struct nouveau_bios *bios, int idx,
        p->timing_hdr = *hdr;
        switch (!!data * *ver) {
        case 0x10:
-               p->timing_10_WR = nv_ro08(bios, data + 0x00);
-               p->timing_10_CL = nv_ro08(bios, data + 0x02);
-               p->timing_10_ODT = nv_ro08(bios, data + 0x0e) & 0x07;
-               p->timing_10_CWL = nv_ro08(bios, data + 0x13);
+               p->timing_10_WR    = nv_ro08(bios, data + 0x00);
+               p->timing_10_WTR   = nv_ro08(bios, data + 0x01);
+               p->timing_10_CL    = nv_ro08(bios, data + 0x02);
+               p->timing_10_RC    = nv_ro08(bios, data + 0x03);
+               p->timing_10_RFC   = nv_ro08(bios, data + 0x05);
+               p->timing_10_RAS   = nv_ro08(bios, data + 0x07);
+               p->timing_10_RP    = nv_ro08(bios, data + 0x09);
+               p->timing_10_RCDRD = nv_ro08(bios, data + 0x0a);
+               p->timing_10_RCDWR = nv_ro08(bios, data + 0x0b);
+               p->timing_10_RRD   = nv_ro08(bios, data + 0x0c);
+               p->timing_10_13    = nv_ro08(bios, data + 0x0d);
+               p->timing_10_ODT   = nv_ro08(bios, data + 0x0e) & 0x07;
+
+               p->timing_10_24  = 0xff;
+               p->timing_10_21  = 0;
+               p->timing_10_20  = 0;
+               p->timing_10_CWL = 0;
+               p->timing_10_18  = 0;
+               p->timing_10_16  = 0;
+
+               switch (min_t(u8, *hdr, 25)) {
+               case 25:
+                       p->timing_10_24  = nv_ro08(bios, data + 0x18);
+               case 24:
+               case 23:
+               case 22:
+                       p->timing_10_21  = nv_ro08(bios, data + 0x15);
+               case 21:
+                       p->timing_10_20  = nv_ro08(bios, data + 0x14);
+               case 20:
+                       p->timing_10_CWL = nv_ro08(bios, data + 0x13);
+               case 19:
+                       p->timing_10_18  = nv_ro08(bios, data + 0x12);
+               case 18:
+               case 17:
+                       p->timing_10_16  = nv_ro08(bios, data + 0x10);
+               }
+
                break;
        case 0x20:
                p->timing[0] = nv_ro32(bios, data + 0x00);

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
index 45e8a91..07dfbba 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnva3.c
@@ -343,6 +343,66 @@ nva3_link_train_fini(struct nouveau_fb *pfb)
                pfb->ram->put(pfb, &ram->ltrain.mem);
 }
 
+/*
+ * RAM reclocking
+ */
+#define T(t) cfg->timing_10_##t
+static int
+nva3_ram_timing_calc(struct nouveau_fb *pfb, u32 *timing)
+{
+       struct nva3_ram *ram = (void *)pfb->ram;
+       struct nvbios_ramcfg *cfg = &ram->base.target.bios;
+       int tUNK_base;
+       u32 cur3, cur7, cur8;
+
+       cur3 = nv_rd32(pfb, 0x10022c);
+       cur7 = nv_rd32(pfb, 0x10023c);
+       cur8 = nv_rd32(pfb, 0x100240);
+
+       if (T(CWL) == 0)
+               T(CWL) = ((nv_rd32(pfb, 0x100228) & 0x0f000000) >> 24) + 1;
+
+       tUNK_base =  ((cur7 & 0x00ff0000) >> 16) -
+                    (cur3 & 0x000000ff) - 1;
+
+       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 |
+                   (5 + T(CL) - T(CWL));
+       timing[2] = (T(CWL) - 1) << 24 |
+                   (T(RRD) << 16) |
+                   (T(RCDWR) << 8) |
+                   T(RCDRD);
+       timing[3] = (cur3 & 0x00ff0000) |
+                   (0x30 + T(CL)) << 24 |
+                   (0xb + T(CL)) << 8 |
+                   (T(CL) - 1);
+       timing[4] = T(20) << 24 |
+                   T(21) << 16 |
+                   T(13) << 8 |
+                   T(13);
+       timing[5] = T(RFC) << 24 |
+                   max_t(u8,T(RCDRD), T(RCDWR)) << 16 |
+                   (T(CWL) + 6) << 8 |
+                   T(RP);
+       timing[6] = (0x5a + T(CL)) << 16 |
+                   (6 - T(CL) + T(CWL)) << 8 |
+                   (0x50 + T(CL) - T(CWL));
+       timing[7] = (cur7 & 0xff000000) |
+                   ((tUNK_base + T(CL)) << 16) |
+                   0x202;
+       timing[8] = cur8 & 0xffffff00;
+
+       nv_debug(pfb, "Entry: 220: %08x %08x %08x %08x\n",
+                       timing[0], timing[1], timing[2], timing[3]);
+       nv_debug(pfb, "  230: %08x %08x %08x %08x\n",
+                       timing[4], timing[5], timing[6], timing[7]);
+       nv_debug(pfb, "  240: %08x\n", timing[8]);
+       return 0;
+}
+#undef T
+
 static int
 nva3_ram_calc(struct nouveau_fb *pfb, u32 freq)
 {
@@ -356,6 +416,7 @@ nva3_ram_calc(struct nouveau_fb *pfb, u32 freq)
        u32 r004018, r100760, ctrl;
        u32 unk714, unk718, unk71c;
        int ret, i;
+       u32 timing[9];
 
        next = &ram->base.target;
        next->freq = freq;
@@ -409,6 +470,8 @@ nva3_ram_calc(struct nouveau_fb *pfb, u32 freq)
                return ret;
        }
 
+       nva3_ram_timing_calc(pfb, timing);
+
        ret = ram_init(fuc, pfb);
        if (ret)
                return ret;
@@ -519,16 +582,17 @@ nva3_ram_calc(struct nouveau_fb *pfb, u32 freq)
        ram_mask(fuc, mr[0], 0x00000000, 0x00000000);
        ram_nsec(fuc, 1000);
 
-       ram_mask(fuc, 0x100220[3], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[1], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[6], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[7], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[2], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[4], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[5], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[0], 0x00000000, 0x00000000);
-       ram_mask(fuc, 0x100220[8], 0x00000000, 0x00000000);
-
+       ram_wr32(fuc, 0x100220[3], timing[3]);
+       ram_wr32(fuc, 0x100220[1], timing[1]);
+       ram_wr32(fuc, 0x100220[6], timing[6]);
+       ram_wr32(fuc, 0x100220[7], timing[7]);
+       ram_wr32(fuc, 0x100220[2], timing[2]);
+       ram_wr32(fuc, 0x100220[4], timing[4]);
+       ram_wr32(fuc, 0x100220[5], timing[5]);
+       ram_wr32(fuc, 0x100220[0], timing[0]);
+       ram_wr32(fuc, 0x100220[8], timing[8]);
+
+       /* Misc */
        ram_mask(fuc, 0x100200, 0x00001000, !next->bios.ramcfg_10_02_08 << 12);
 
        unk714 = ram_rd32(fuc, 0x100714) & ~0xf0000010;