From 2228c6fe04ddc303e90c05dd9430539fbcd8fa18 Mon Sep 17 00:00:00 2001 From: Roy Spliet Date: Thu, 14 Jul 2011 20:40:10 +0200 Subject: [PATCH] drm/nouveau/pm: Document and expose CL and WR for 0x1002Cx Signed-off-by: Roy Spliet --- drivers/gpu/drm/nouveau/nouveau_drv.h | 7 ++++++- drivers/gpu/drm/nouveau/nouveau_mem.c | 28 ++++++++++++++------------- 2 files changed, 21 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 7991c1b3b911..c5993aad2aec 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -438,6 +438,9 @@ struct nouveau_pm_memtiming { u32 reg_6; u32 reg_7; u32 reg_8; + /* To be written to 0x1002c0 */ + u8 CL; + u8 WR; }; struct nouveau_pm_tbl_header{ @@ -448,7 +451,9 @@ struct nouveau_pm_tbl_header{ }; struct nouveau_pm_tbl_entry{ - u8 tUNK_0, tUNK_1, tUNK_2; + u8 tWR; + u8 tUNK_1; + u8 tCL; u8 tRP; /* Byte 3 */ u8 empty_4; u8 tRAS; /* Byte 5 */ diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 65c12ed14257..36bec4807701 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -519,10 +519,10 @@ void nv40_mem_timing_entry(struct drm_device *dev, struct nouveau_pm_tbl_header /* XXX: I don't trust the -1's and +1's... they must come * from somewhere! */ - timing->reg_1 = (e->tUNK_0 + 2 + magic_number) << 24 | + timing->reg_1 = (e->tWR + 2 + magic_number) << 24 | 1 << 16 | (e->tUNK_1 + 2 + magic_number) << 8 | - (e->tUNK_2 + 2 - magic_number); + (e->tCL + 2 - magic_number); timing->reg_2 = (magic_number << 24 | e->tUNK_12 << 16 | e->tUNK_11 << 8 | e->tUNK_10); timing->reg_2 |= 0x20200000; @@ -555,13 +555,13 @@ void nv50_mem_timing_entry(struct drm_device *dev, struct bit_entry *P, struct n /* XXX: I don't trust the -1's and +1's... they must come * from somewhere! */ - timing->reg_1 = (e->tUNK_0 + unk19 + 1 + magic_number) << 24 | + timing->reg_1 = (e->tWR + unk19 + 1 + magic_number) << 24 | max(unk18, (u8) 1) << 16 | (e->tUNK_1 + unk19 + 1 + magic_number) << 8; if (dev_priv->chipset == 0xa8) { - timing->reg_1 |= (e->tUNK_2 - 1); + timing->reg_1 |= (e->tCL - 1); } else { - timing->reg_1 |= (e->tUNK_2 + 2 - magic_number); + timing->reg_1 |= (e->tCL + 2 - magic_number); } timing->reg_2 = (e->tUNK_12 << 16 | e->tUNK_11 << 8 | e->tUNK_10); @@ -570,17 +570,17 @@ void nv50_mem_timing_entry(struct drm_device *dev, struct bit_entry *P, struct n if (P->version == 1) { timing->reg_2 |= magic_number << 24; - timing->reg_3 = (0x14 + e->tUNK_2) << 24 | + timing->reg_3 = (0x14 + e->tCL) << 24 | 0x16 << 16 | - (e->tUNK_2 - 1) << 8 | - (e->tUNK_2 - 1); + (e->tCL - 1) << 8 | + (e->tCL - 1); timing->reg_4 = (nv_rd32(dev,0x10022c) & 0xffff0000) | e->tUNK_13 << 8 | e->tUNK_13; - timing->reg_5 |= (e->tUNK_2 + 2) << 8; - timing->reg_7 = 0x4000202 | (e->tUNK_2 - 1) << 16; + timing->reg_5 |= (e->tCL + 2) << 8; + timing->reg_7 = 0x4000202 | (e->tCL - 1) << 16; } else { timing->reg_2 |= (unk19 - 1) << 24; /* XXX: reg_10022c for recentish cards pretty much unknown*/ - timing->reg_3 = e->tUNK_2 - 1; + timing->reg_3 = e->tCL - 1; timing->reg_4 = (unk20 << 24 | unk21 << 16 | e->tUNK_13 << 8 | e->tUNK_13); /* XXX: +6? */ @@ -603,8 +603,8 @@ void nv50_mem_timing_entry(struct drm_device *dev, struct bit_entry *P, struct n void nvc0_mem_timing_entry(struct drm_device *dev, struct nouveau_pm_tbl_header *hdr, struct nouveau_pm_tbl_entry *e, struct nouveau_pm_memtiming *timing) { timing->reg_0 = (e->tRC << 24 | (e->tRFC & 0x7f) << 17 | e->tRAS << 8 | e->tRP); - timing->reg_1 = (nv_rd32(dev,0x10f294) & 0xff000000) | (e->tUNK_11&0x0f) << 20 | (e->tUNK_19 << 7) | (e->tUNK_2 & 0x0f); - timing->reg_2 = (nv_rd32(dev,0x10f298) & 0xff0000ff) | e->tUNK_0 << 16 | e->tUNK_1 << 8; + timing->reg_1 = (nv_rd32(dev,0x10f294) & 0xff000000) | (e->tUNK_11&0x0f) << 20 | (e->tUNK_19 << 7) | (e->tCL & 0x0f); + timing->reg_2 = (nv_rd32(dev,0x10f298) & 0xff0000ff) | e->tWR << 16 | e->tUNK_1 << 8; timing->reg_3 = e->tUNK_20 << 9 | e->tUNK_13; timing->reg_4 = (nv_rd32(dev,0x10f2a0) & 0xfff000ff) | e->tUNK_12 << 15; NV_DEBUG(dev, "Entry %d: 290: %08x %08x %08x %08x\n", timing->id, @@ -686,6 +686,8 @@ nouveau_mem_timing_init(struct drm_device *dev) continue; timing->id = i; + timing->WR = entry[0]; + timing->CL = entry[2]; if(dev_priv->card_type <= NV_40) { nv40_mem_timing_entry(dev,hdr,(struct nouveau_pm_tbl_entry*) entry,magic_number,&pm->memtimings.timing[i]); -- 2.30.2