/*
* Copyright (C) 2008 Maarten Maathuis.
* All Rights Reserved.
*
* 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 COPYRIGHT OWNER(S) AND/OR ITS 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.
*
*/
#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
#include "nv50_display.h"
#include "nouveau_crtc.h"
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_fb.h"
#include "nouveau_fbcon.h"
#include "nouveau_ramht.h"
#include "drm_crtc_helper.h"
static void nv50_display_isr(struct drm_device *);
static void nv50_display_bh(unsigned long);
static inline int
nv50_sor_nr(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
if (dev_priv->chipset < 0x90 ||
dev_priv->chipset == 0x92 ||
dev_priv->chipset == 0xa0)
return 2;
return 4;
}
int
nv50_display_early_init(struct drm_device *dev)
{
return 0;
}
void
nv50_display_late_takedown(struct drm_device *dev)
{
}
int
nv50_display_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct drm_connector *connector;
struct nouveau_channel *evo;
int ret, i;
u32 val;
NV_DEBUG_KMS(dev, "\n");
nv_wr32(dev, 0x00610184, nv_rd32(dev, 0x00614004));
/*
* I think the 0x006101XX range is some kind of main control area
* that enables things.
*/
/* CRTC? */
for (i = 0; i < 2; i++) {
val = nv_rd32(dev, 0x00616100 + (i * 0x800));
nv_wr32(dev, 0x00610190 + (i * 0x10), val);
val = nv_rd32(dev, 0x00616104 + (i * 0x800));
nv_wr32(dev, 0x00610194 + (i * 0x10), val);
val = nv_rd32(dev, 0x00616108 + (i * 0x800));
nv_wr32(dev, 0x00610198 + (i * 0x10), val);
val = nv_rd32(dev, 0x0061610c + (i * 0x800));
nv_wr32(dev, 0x0061019c + (i * 0x10), val);
}
/* DAC */
for (i = 0; i < 3; i++) {
val = nv_rd32(dev, 0x0061a000 + (i * 0x800));
nv_wr32(dev, 0x006101d0 + (i * 0x04), val);
}
/* SOR */
for (i = 0; i < nv50_sor_nr(dev); i++) {
val = nv_rd32(dev, 0x0061c000 + (i * 0x800));
nv_wr32(dev, 0x006101e0 + (i * 0x04), val);
}
/* EXT */
for (i = 0; i < 3; i++) {
val = nv_rd32(dev, 0x0061e000 + (i * 0x800));
nv_wr32(dev, 0x006101f0 + (i * 0x04), val);
}
for (i = 0; i < 3; i++) {
nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(i), 0x00550000 |
NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING);
nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(i), 0x00000001);
}
/* The precise purpose is unknown, i suspect it has something to do
* with text mode.
*/
if (nv_rd32(dev, NV50_PDISPLAY_INTR_1) & 0x100) {
nv_wr32(dev, NV50_PDISPLAY_INTR_1, 0x100);
nv_wr32(dev, 0x006194e8, nv_rd32(dev, 0x006194e8) & ~1);
if (!nv_wait(dev, 0x006194e8, 2, 0)) {
NV_ERROR(dev, "timeout: (0x6194e8 & 2) != 0\n");
NV_ERROR(dev, "0x6194e8 = 0x%08x\n",
nv_rd32(dev, 0x6194e8));
return -EBUSY;
}
}
for (i = 0; i < 2; i++) {
nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i), 0x2000);
if (!nv_wait(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
return -EBUSY;
}
nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_ON);
if (!nv_wait(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i),
NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS,
NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS_ACTIVE)) {
NV_ERROR(dev, "timeout: "
"CURSOR_CTRL2_STATUS_ACTIVE(%d)\n", i);
NV_ERROR(dev, "CURSOR_CTRL2(%d) = 0x%08x\n", i,
nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(i)));
return -EBUSY;
}
}
nv_wr32(dev, NV50_PDISPLAY_PIO_CTRL, 0x00000000);
nv_mask(dev, NV50_PDISPLAY_INTR_0, 0x00000000, 0x00000000);
nv_wr32(dev, NV50_PDISPLAY_INTR_EN_0, 0x00000000);
nv_mask(dev, NV50_PDISPLAY_INTR_1, 0x00000000, 0x00000000);
nv_wr32(dev, NV50_PDISPLAY_INTR_EN_1,
NV50_PDISPLAY_INTR_EN_1_CLK_UNK10 |
NV50_PDISPLAY_INTR_EN_1_CLK_UNK20 |
NV50_PDISPLAY_INTR_EN_1_CLK_UNK40);
/* enable hotplug interrupts */
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
struct nouveau_connector *conn = nouveau_connector(connector);
if (conn->dcb->gpio_tag == 0xff)
continue;
pgpio->irq_enable(dev, conn->dcb->gpio_tag, true);
}
ret = nv50_evo_init(dev);
if (ret)
return ret;
evo = nv50_display(dev)->master;
nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9);
ret = RING_SPACE(evo, 15);
if (ret)
return ret;
BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2);
OUT_RING(evo, NV50_EVO_UNK84_NOTIFY_DISABLED);
OUT_RING(evo, NvEvoSync);
BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, FB_DMA), 1);
OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE);
BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK0800), 1);
OUT_RING(evo, 0);
BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, DISPLAY_START), 1);
OUT_RING(evo, 0);
BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1);
OUT_RING(evo, 0);
/* required to make display sync channels not hate life */
BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK900), 1);
OUT_RING (evo, 0x00000311);
BEGIN_RING(evo, 0, NV50_EVO_CRTC(1, UNK900), 1);
OUT_RING (evo, 0x00000311);
FIRE_RING(evo);
if (!nv_wait(dev, 0x640004, 0xffffffff, evo->dma.put << 2))
NV_ERROR(dev, "evo pushbuf stalled\n");
return 0;
}
static int nv50_display_disable(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_display *disp = nv50_display(dev);
struct nouveau_channel *evo = disp->master;
struct drm_crtc *drm_crtc;
int ret, i;
NV_DEBUG_KMS(dev, "\n");
list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
nv50_crtc_blank(crtc, true);
}
ret = RING_SPACE(evo, 2);
if (ret == 0) {
BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
OUT_RING(evo, 0);
}
FIRE_RING(evo);
/* Almost like ack'ing a vblank interrupt, maybe in the spirit of
* cleaning up?
*/
list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
struct nouveau_crtc *crtc = nouveau_crtc(drm_crtc);
uint32_t mask = NV50_PDISPLAY_INTR_1_VBLANK_CRTC_(crtc->index);
if (!crtc->base.enabled)
continue;
nv_wr32(dev, NV50_PDISPLAY_INTR_1, mask);
if (!nv_wait(dev, NV50_PDISPLAY_INTR_1, mask, mask)) {
NV_ERROR(dev, "timeout: (0x610024 & 0x%08x) == "
"0x%08x\n", mask, mask);
NV_ERROR(dev, "0x610024 = 0x%08x\n",
nv_rd32(dev, NV50_PDISPLAY_INTR_1));
}
}
nv50_evo_fini(dev);
for (i = 0; i < 3; i++) {
if (!nv_wait(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i),
NV50_PDISPLAY_SOR_DPMS_STATE_WAIT, 0)) {
NV_ERROR(dev, "timeout: SOR_DPMS_STATE_WAIT(%d) == 0\n", i);
NV_ERROR(dev, "SOR_DPMS_STATE(%d) = 0x%08x\n", i,
nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(i)));
}
}
/* disable interrupts. */
nv_wr32(dev, NV50_PDISPLAY_INTR_EN_1, 0x00000000);
/* disable hotplug interrupts */
nv_wr32(dev, 0xe054, 0xffffffff);
nv_wr32(dev, 0xe050, 0x00000000);
if (dev_priv->chipset >= 0x90) {
nv_wr32(dev, 0xe074, 0xffffffff);
nv_wr32(dev, 0xe070, 0x00000000);
}
return 0;
}
int nv50_display_create(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct dcb_table *dcb = &dev_priv->vbios.dcb;
struct drm_connector *connector, *ct;
struct nv50_display *priv;
int ret, i;
NV_DEBUG_KMS(dev, "\n");
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
dev_priv->engine.display.priv = priv;
/* init basic kernel modesetting */
drm_mode_config_init(dev);
/* Initialise some optional connector properties. */
drm_mode_create_scaling_mode_property(dev);
drm_mode_create_dithering_property(dev);
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
dev->mode_config.max_width = 8192;
dev->mode_config.max_height = 8192;
dev->mode_config.fb_base = dev_priv->fb_phys;
/* Create CRTC objects */
for (i = 0; i < 2; i++)
nv50_crtc_create(dev, i);
/* We setup the encoders from the BIOS table */
for (i = 0 ; i < dcb->entries; i++) {
struct dcb_entry *entry = &dcb->entry[i];
if (entry->location != DCB_LOC_ON_CHIP) {
NV_WARN(dev, "Off-chip encoder %d/%d unsupported\n",
entry->type, ffs(entry->or) - 1);
continue;
}
connector = nouveau_connector_create(dev, entry->connector);
if (IS_ERR(connector))
continue;
switch (entry->type) {
case OUTPUT_TMDS:
case OUTPUT_LVDS:
case OUTPUT_DP:
nv50_sor_create(connector, entry);
break;
case OUTPUT_ANALOG:
nv50_dac_create(connector, entry);
break;
default:
NV_WARN(dev, "DCB encoder %d unknown\n", entry->type);
continue;
}
}
list_for_each_entry_safe(connector, ct,
&dev->mode_config.connector_list, head) {
if (!connector->encoder_ids[0]) {
NV_WARN(dev, "%s has no encoders, removing\n",
drm_get_connector_name(connector));
connector->funcs->destroy(connector);
}
}
tasklet_init(&priv->tasklet, nv50_display_bh, (unsigned long)dev);
nouveau_irq_register(dev, 26, nv50_display_isr);
ret = nv50_display_init(dev);
if (ret) {
nv50_display_destroy(dev);
return ret;
}
return 0;
}
void
nv50_display_destroy(struct drm_device *dev)
{
struct nv50_display *disp = nv50_display(dev);
NV_DEBUG_KMS(dev, "\n");
drm_mode_config_cleanup(dev);
nv50_display_disable(dev);
nouveau_irq_unregister(dev, 26);
kfree(disp);
}
void
nv50_display_flip_stop(struct drm_crtc *crtc)
{
struct nv50_display *disp = nv50_display(crtc->dev);
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
struct nv50_display_crtc *dispc = &disp->crtc[nv_crtc->index];
struct nouveau_channel *evo = dispc->sync;
int ret;
ret = RING_SPACE(evo, 8);
if (ret) {
WARN_ON(1);
return;
}
BEGIN_RING(evo, 0, 0x0084, 1);
OUT_RING (evo, 0x00000000);
BEGIN_RING(evo, 0, 0x0094, 1);
OUT_RING (evo, 0x00000000);
BEGIN_RING(evo, 0, 0x00c0, 1);
OUT_RING (evo, 0x00000000);
BEGIN_RING(evo, 0, 0x0080, 1);
OUT_RING (evo, 0x00000000);
FIRE_RING (evo);
}
int
nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
struct nouveau_channel *chan)
{
struct drm_nouveau_private *dev_priv = crtc->dev->dev_private;
struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
struct nv50_display *disp = nv50_display(crtc->dev);
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
struct nv50_display_crtc *dispc = &disp->crtc[nv_crtc->index];
struct nouveau_channel *evo = dispc->sync;
int ret;
ret = RING_SPACE(evo, chan ? 25 : 27);
if (unlikely(ret))
return ret;
/* synchronise with the rendering channel, if necessary */
if (likely(chan)) {
u64 offset = dispc->sem.bo->vma.offset + dispc->sem.offset;
ret = RING_SPACE(chan, 10);
if (ret) {
WIND_RING(evo);
return ret;
}
if (dev_priv->chipset < 0xc0) {
BEGIN_RING(chan, NvSubSw, 0x0060, 2);
OUT_RING (chan, NvEvoSema0 + nv_crtc->index);
OUT_RING (chan, dispc->sem.offset);
BEGIN_RING(chan, NvSubSw, 0x006c, 1);
OUT_RING (chan, 0xf00d0000 | dispc->sem.value);
BEGIN_RING(chan, NvSubSw, 0x0064, 2);
OUT_RING (chan, dispc->sem.offset ^ 0x10);
OUT_RING (chan, 0x74b1e000);
BEGIN_RING(chan, NvSubSw, 0x0060, 1);
if (dev_priv->chipset < 0x84)
OUT_RING (chan, NvSema);
else
OUT_RING (chan, chan->vram_handle);
} else {
BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4);
OUT_RING (chan, upper_32_bits(offset));
OUT_RING (chan, lower_32_bits(offset));
OUT_RING (chan, 0xf00d0000 | dispc->sem.value);
OUT_RING (chan, 0x1002);
BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4);
OUT_RING (chan, upper_32_bits(offset));
OUT_RING (chan, lower_32_bits(offset ^ 0x10));
OUT_RING (chan, 0x74b1e000);
OUT_RING (chan, 0x1001);
}
FIRE_RING (chan);
} else {
nouveau_bo_wr32(dispc->sem.bo, dispc->sem.offset / 4,
0xf00d0000 | dispc->sem.value);
}
/* queue the flip on the crtc's "display sync" channel */
BEGIN_RING(evo, 0, 0x0100, 1);
OUT_RING (evo, 0xfffe0000);
if (chan) {
BEGIN_RING(evo, 0, 0x0084, 1);
OUT_RING (evo, 0x00000100);
} else {
BEGIN_RING(evo, 0, 0x0084, 1);
OUT_RING (evo, 0x00000010);
/* allows gamma somehow, PDISP will bitch at you if
* you don't wait for vblank before changing this..
*/
BEGIN_RING(evo, 0, 0x00e0, 1);
OUT_RING (evo, 0x40000000);
}
BEGIN_RING(evo, 0, 0x0088, 4);
OUT_RING (evo, dispc->sem.offset);
OUT_RING (evo, 0xf00d0000 | dispc->sem.value);
OUT_RING (evo, 0x74b1e000);
OUT_RING (evo, NvEvoSync);
BEGIN_RING(evo, 0, 0x00a0, 2);
OUT_RING (evo, 0x00000000);
OUT_RING (evo, 0x00000000);
BEGIN_RING(evo, 0, 0x00c0, 1);
OUT_RING (evo, nv_fb->r_dma);
BEGIN_RING(evo, 0, 0x0110, 2);
OUT_RING (evo, 0x00000000);
OUT_RING (evo, 0x00000000);
BEGIN_RING(evo, 0, 0x0800, 5);
OUT_RING (evo, (nv_fb->nvbo->bo.mem.start << PAGE_SHIFT) >> 8);
OUT_RING (evo, 0);
OUT_RING (evo, (fb->height << 16) | fb->width);
OUT_RING (evo, nv_fb->r_pitch);
OUT_RING (evo, nv_fb->r_format);
BEGIN_RING(evo, 0, 0x0080, 1);
OUT_RING (evo, 0x00000000);
FIRE_RING (evo);
dispc->sem.offset ^= 0x10;
dispc->sem.value++;
return 0;
}
static u16
nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcb,
u32 mc, int pxclk)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_connector *nv_connector = NULL;
struct drm_encoder *encoder;
struct nvbios *bios = &dev_priv->vbios;
u32 script = 0, or;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
if (nv_encoder->dcb != dcb)
continue;
nv_connector = nouveau_encoder_connector_get(nv_encoder);
break;
}
or = ffs(dcb->or) - 1;
switch (dcb->type) {
case OUTPUT_LVDS:
script = (mc >> 8) & 0xf;
if (bios->fp_no_ddc) {
if (bios->fp.dual_link)
script |= 0x0100;
if (bios->fp.if_is_24bit)
script |= 0x0200;
} else {
/* determine number of lvds links */
if (nv_connector && nv_connector->edid &&
nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG) {
/* http://www.spwg.org */
if (((u8 *)nv_connector->edid)[121] == 2)
script |= 0x0100;
} else
if (pxclk >= bios->fp.duallink_transition_clk) {
script |= 0x0100;
}
/* determine panel depth */
if (script & 0x0100) {
if (bios->fp.strapless_is_24bit & 2)
script |= 0x0200;
} else {
if (bios->fp.strapless_is_24bit & 1)
script |= 0x0200;
}
if (nv_connector && nv_connector->edid &&
(nv_connector->edid->revision >= 4) &&
(nv_connector->edid->input & 0x70) >= 0x20)
script |= 0x0200;
}
if (nouveau_uscript_lvds >= 0) {
NV_INFO(dev, "override script 0x%04x with 0x%04x "
"for output LVDS-%d\n", script,
nouveau_uscript_lvds, or);
script = nouveau_uscript_lvds;
}
break;
case OUTPUT_TMDS:
script = (mc >> 8) & 0xf;
if (pxclk >= 165000)
script |= 0x0100;
if (nouveau_uscript_tmds >= 0) {
NV_INFO(dev, "override script 0x%04x with 0x%04x "
"for output TMDS-%d\n", script,
nouveau_uscript_tmds, or);
script = nouveau_uscript_tmds;
}
break;
case OUTPUT_DP:
script = (mc >> 8) & 0xf;
break;
case OUTPUT_ANALOG:
script = 0xff;
break;
default:
NV_ERROR(dev, "modeset on unsupported output type!\n");
break;
}
return script;
}
static void
nv50_display_vblank_crtc_handler(struct drm_device *dev, int crtc)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan, *tmp;
list_for_each_entry_safe(chan, tmp, &dev_priv->vbl_waiting,
nvsw.vbl_wait) {
if (chan->nvsw.vblsem_head != crtc)
continue;
nouveau_bo_wr32(chan->notifier_bo, chan->nvsw.vblsem_offset,
chan->nvsw.vblsem_rval);
list_del(&chan->nvsw.vbl_wait);
drm_vblank_put(dev, crtc);
}
drm_handle_vblank(dev, crtc);
}
static void
nv50_display_vblank_handler(struct drm_device *dev, uint32_t intr)
{
if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_0)
nv50_display_vblank_crtc_handler(dev, 0);
if (intr & NV50_PDISPLAY_INTR_1_VBLANK_CRTC_1)
nv50_display_vblank_crtc_handler(dev, 1);
nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_VBLANK_CRTC);
}
static void
nv50_display_unk10_handler(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_display *disp = nv50_display(dev);
u32 unk30 = nv_rd32(dev, 0x610030), mc;
int i, crtc, or, type = OUTPUT_ANY;
NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
disp->irq.dcb = NULL;
nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) & ~8);
/* Determine which CRTC we're dealing with, only 1 ever will be
* signalled at the same time with the current nouveau code.
*/
crtc = ffs((unk30 & 0x00000060) >> 5) - 1;
if (crtc < 0)
goto ack;
/* Nothing needs to be done for the encoder */
crtc = ffs((unk30 & 0x00000180) >> 7) - 1;
if (crtc < 0)
goto ack;
/* Find which encoder was connected to the CRTC */
for (i = 0; type == OUTPUT_ANY && i < 3; i++) {
mc = nv_rd32(dev, NV50_PDISPLAY_DAC_MODE_CTRL_C(i));
NV_DEBUG_KMS(dev, "DAC-%d mc: 0x%08x\n", i, mc);
if (!(mc & (1 << crtc)))
continue;
switch ((mc & 0x00000f00) >> 8) {
case 0: type = OUTPUT_ANALOG; break;
case 1: type = OUTPUT_TV; break;
default:
NV_ERROR(dev, "invalid mc, DAC-%d: 0x%08x\n", i, mc);
goto ack;
}
or = i;
}
for (i = 0; type == OUTPUT_ANY && i < nv50_sor_nr(dev); i++) {
if (dev_priv->chipset < 0x90 ||
dev_priv->chipset == 0x92 ||
dev_priv->chipset == 0xa0)
mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_C(i));
else
mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_C(i));
NV_DEBUG_KMS(dev, "SOR-%d mc: 0x%08x\n", i, mc);
if (!(mc & (1 << crtc)))
continue;
switch ((mc & 0x00000f00) >> 8) {
case 0: type = OUTPUT_LVDS; break;
case 1: type = OUTPUT_TMDS; break;
case 2: type = OUTPUT_TMDS; break;
case 5: type = OUTPUT_TMDS; break;
case 8: type = OUTPUT_DP; break;
case 9: type = OUTPUT_DP; break;
default:
NV_ERROR(dev, "invalid mc, SOR-%d: 0x%08x\n", i, mc);
goto ack;
}
or = i;
}
/* There was no encoder to disable */
if (type == OUTPUT_ANY)
goto ack;
/* Disable the encoder */
for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {
struct dcb_entry *dcb = &dev_priv->vbios.dcb.entry[i];
if (dcb->type == type && (dcb->or & (1 << or))) {
nouveau_bios_run_display_table(dev, dcb, 0, -1);
disp->irq.dcb = dcb;
goto ack;
}
}
NV_ERROR(dev, "no dcb for %d %d 0x%08x\n", or, type, mc);
ack:
nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK10);
nv_wr32(dev, 0x610030, 0x80000000);
}
static void
nv50_display_unk20_dp_hack(struct drm_device *dev, struct dcb_entry *dcb)
{
int or = ffs(dcb->or) - 1, link = !(dcb->dpconf.sor.link & 1);
struct drm_encoder *encoder;
uint32_t tmp, unk0 = 0, unk1 = 0;
if (dcb->type != OUTPUT_DP)
return;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
if (nv_encoder->dcb == dcb) {
unk0 = nv_encoder->dp.unk0;
unk1 = nv_encoder->dp.unk1;
break;
}
}
if (unk0 || unk1) {
tmp = nv_rd32(dev, NV50_SOR_DP_CTRL(or, link));
tmp &= 0xfffffe03;
nv_wr32(dev, NV50_SOR_DP_CTRL(or, link), tmp | unk0);
tmp = nv_rd32(dev, NV50_SOR_DP_UNK128(or, link));
tmp &= 0xfef080c0;
nv_wr32(dev, NV50_SOR_DP_UNK128(or, link), tmp | unk1);
}
}
static void
nv50_display_unk20_handler(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_display *disp = nv50_display(dev);
u32 unk30 = nv_rd32(dev, 0x610030), tmp, pclk, script, mc = 0;
struct dcb_entry *dcb;
int i, crtc, or, type = OUTPUT_ANY;
NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
dcb = disp->irq.dcb;
if (dcb) {
nouveau_bios_run_display_table(dev, dcb, 0, -2);
disp->irq.dcb = NULL;
}
/* CRTC clock change requested? */
crtc = ffs((unk30 & 0x00000600) >> 9) - 1;
if (crtc >= 0) {
pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(crtc, CLOCK));
pclk &= 0x003fffff;
nv50_crtc_set_clock(dev, crtc, pclk);
tmp = nv_rd32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(crtc));
tmp &= ~0x000000f;
nv_wr32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(crtc), tmp);
}
/* Nothing needs to be done for the encoder */
crtc = ffs((unk30 & 0x00000180) >> 7) - 1;
if (crtc < 0)
goto ack;
pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(crtc, CLOCK)) & 0x003fffff;
/* Find which encoder is connected to the CRTC */
for (i = 0; type == OUTPUT_ANY && i < 3; i++) {
mc = nv_rd32(dev, NV50_PDISPLAY_DAC_MODE_CTRL_P(i));
NV_DEBUG_KMS(dev, "DAC-%d mc: 0x%08x\n", i, mc);
if (!(mc & (1 << crtc)))
continue;
switch ((mc & 0x00000f00) >> 8) {
case 0: type = OUTPUT_ANALOG; break;
case 1: type = OUTPUT_TV; break;
default:
NV_ERROR(dev, "invalid mc, DAC-%d: 0x%08x\n", i, mc);
goto ack;
}
or = i;
}
for (i = 0; type == OUTPUT_ANY && i < nv50_sor_nr(dev); i++) {
if (dev_priv->chipset < 0x90 ||
dev_priv->chipset == 0x92 ||
dev_priv->chipset == 0xa0)
mc = nv_rd32(dev, NV50_PDISPLAY_SOR_MODE_CTRL_P(i));
else
mc = nv_rd32(dev, NV90_PDISPLAY_SOR_MODE_CTRL_P(i));
NV_DEBUG_KMS(dev, "SOR-%d mc: 0x%08x\n", i, mc);
if (!(mc & (1 << crtc)))
continue;
switch ((mc & 0x00000f00) >> 8) {
case 0: type = OUTPUT_LVDS; break;
case 1: type = OUTPUT_TMDS; break;
case 2: type = OUTPUT_TMDS; break;
case 5: type = OUTPUT_TMDS; break;
case 8: type = OUTPUT_DP; break;
case 9: type = OUTPUT_DP; break;
default:
NV_ERROR(dev, "invalid mc, SOR-%d: 0x%08x\n", i, mc);
goto ack;
}
or = i;
}
if (type == OUTPUT_ANY)
goto ack;
/* Enable the encoder */
for (i = 0; i < dev_priv->vbios.dcb.entries; i++) {
dcb = &dev_priv->vbios.dcb.entry[i];
if (dcb->type == type && (dcb->or & (1 << or)))
break;
}
if (i == dev_priv->vbios.dcb.entries) {
NV_ERROR(dev, "no dcb for %d %d 0x%08x\n", or, type, mc);
goto ack;
}
script = nv50_display_script_select(dev, dcb, mc, pclk);
nouveau_bios_run_display_table(dev, dcb, script, pclk);
nv50_display_unk20_dp_hack(dev, dcb);
if (dcb->type != OUTPUT_ANALOG) {
tmp = nv_rd32(dev, NV50_PDISPLAY_SOR_CLK_CTRL2(or));
tmp &= ~0x00000f0f;
if (script & 0x0100)
tmp |= 0x00000101;
nv_wr32(dev, NV50_PDISPLAY_SOR_CLK_CTRL2(or), tmp);
} else {
nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL2(or), 0);
}
disp->irq.dcb = dcb;
disp->irq.pclk = pclk;
disp->irq.script = script;
ack:
nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK20);
nv_wr32(dev, 0x610030, 0x80000000);
}
/* If programming a TMDS output on a SOR that can also be configured for
* DisplayPort, make sure NV50_SOR_DP_CTRL_ENABLE is forced off.
*
* It looks like the VBIOS TMDS scripts make an attempt at this, however,
* the VBIOS scripts on at least one board I have only switch it off on
* link 0, causing a blank display if the output has previously been
* programmed for DisplayPort.
*/
static void
nv50_display_unk40_dp_set_tmds(struct drm_device *dev, struct dcb_entry *dcb)
{
int or = ffs(dcb->or) - 1, link = !(dcb->dpconf.sor.link & 1);
struct drm_encoder *encoder;
u32 tmp;
if (dcb->type != OUTPUT_TMDS)
return;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
if (nv_encoder->dcb->type == OUTPUT_DP &&
nv_encoder->dcb->or & (1 << or)) {
tmp = nv_rd32(dev, NV50_SOR_DP_CTRL(or, link));
tmp &= ~NV50_SOR_DP_CTRL_ENABLED;
nv_wr32(dev, NV50_SOR_DP_CTRL(or, link), tmp);
break;
}
}
}
static void
nv50_display_unk40_handler(struct drm_device *dev)
{
struct nv50_display *disp = nv50_display(dev);
struct dcb_entry *dcb = disp->irq.dcb;
u16 script = disp->irq.script;
u32 unk30 = nv_rd32(dev, 0x610030), pclk = disp->irq.pclk;
NV_DEBUG_KMS(dev, "0x610030: 0x%08x\n", unk30);
disp->irq.dcb = NULL;
if (!dcb)
goto ack;
nouveau_bios_run_display_table(dev, dcb, script, -pclk);
nv50_display_unk40_dp_set_tmds(dev, dcb);
ack:
nv_wr32(dev, NV50_PDISPLAY_INTR_1, NV50_PDISPLAY_INTR_1_CLK_UNK40);
nv_wr32(dev, 0x610030, 0x80000000);
nv_wr32(dev, 0x619494, nv_rd32(dev, 0x619494) | 8);
}
static void
nv50_display_bh(unsigned long data)
{
struct drm_device *dev = (struct drm_device *)data;
for (;;) {
uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
NV_DEBUG_KMS(dev, "PDISPLAY_INTR_BH 0x%08x 0x%08x\n", intr0, intr1);
if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK10)
nv50_display_unk10_handler(dev);
else
if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK20)
nv50_display_unk20_handler(dev);
else
if (intr1 & NV50_PDISPLAY_INTR_1_CLK_UNK40)
nv50_display_unk40_handler(dev);
else
break;
}
nv_wr32(dev, NV03_PMC_INTR_EN_0, 1);
}
static void
nv50_display_error_handler(struct drm_device *dev)
{
u32 channels = (nv_rd32(dev, NV50_PDISPLAY_INTR_0) & 0x001f0000) >> 16;
u32 addr, data;
int chid;
for (chid = 0; chid < 5; chid++) {
if (!(channels & (1 << chid)))
continue;
nv_wr32(dev, NV50_PDISPLAY_INTR_0, 0x00010000 << chid);
addr = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_ADDR(chid));
data = nv_rd32(dev, NV50_PDISPLAY_TRAPPED_DATA(chid));
NV_ERROR(dev, "EvoCh %d Mthd 0x%04x Data 0x%08x "
"(0x%04x 0x%02x)\n", chid,
addr & 0xffc, data, addr >> 16, (addr >> 12) & 0xf);
nv_wr32(dev, NV50_PDISPLAY_TRAPPED_ADDR(chid), 0x90000000);
}
}
static void
nv50_display_isr(struct drm_device *dev)
{
struct nv50_display *disp = nv50_display(dev);
uint32_t delayed = 0;
while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_DISPLAY) {
uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);
uint32_t clock;
NV_DEBUG_KMS(dev, "PDISPLAY_INTR 0x%08x 0x%08x\n", intr0, intr1);
if (!intr0 && !(intr1 & ~delayed))
break;
if (intr0 & 0x001f0000) {
nv50_display_error_handler(dev);
intr0 &= ~0x001f0000;
}
if (intr1 & NV50_PDISPLAY_INTR_1_VBLANK_CRTC) {
nv50_display_vblank_handler(dev, intr1);
intr1 &= ~NV50_PDISPLAY_INTR_1_VBLANK_CRTC;
}
clock = (intr1 & (NV50_PDISPLAY_INTR_1_CLK_UNK10 |
NV50_PDISPLAY_INTR_1_CLK_UNK20 |
NV50_PDISPLAY_INTR_1_CLK_UNK40));
if (clock) {
nv_wr32(dev, NV03_PMC_INTR_EN_0, 0);
tasklet_schedule(&disp->tasklet);
delayed |= clock;
intr1 &= ~clock;
}
if (intr0) {
NV_ERROR(dev, "unknown PDISPLAY_INTR_0: 0x%08x\n", intr0);
nv_wr32(dev, NV50_PDISPLAY_INTR_0, intr0);
}
if (intr1) {
NV_ERROR(dev,
"unknown PDISPLAY_INTR_1: 0x%08x\n", intr1);
nv_wr32(dev, NV50_PDISPLAY_INTR_1, intr1);
}
}
}