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drm/nv50: supply encoder disable() hook for SOR outputs

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Allows us to remove a driver hack that used to be necessary to disable
encoders in certain situations before setting up a mode.  The DRM has
better knowledge of when this is needed than the driver does.

This fixes a number of display switching issues.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-07-01 15:33:45 +10:00
parent df4cf1b72d
commit ec7fc4a1a7
4 changed files with 41 additions and 45 deletions
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6
drivers/gpu/drm/nouveau/nouveau_encoder.h
View File

@ -38,13 +38,15 @@ struct nouveau_encoder {
struct dcb_entry *dcb;
int or;
/* different to drm_encoder.crtc, this reflects what's
* actually programmed on the hw, not the proposed crtc */
struct drm_crtc *crtc;
struct drm_display_mode mode;
int last_dpms;
struct nv04_output_reg restore;
void (*disconnect)(struct nouveau_encoder *encoder);
union {
struct {
int mc_unknown;

31
drivers/gpu/drm/nouveau/nv50_crtc.c
View File

@ -440,40 +440,9 @@ nv50_crtc_prepare(struct drm_crtc *crtc)
{
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
struct drm_device *dev = crtc->dev;
struct drm_encoder *encoder;
uint32_t dac = 0, sor = 0;
NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
/* Disconnect all unused encoders. */
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
if (!drm_helper_encoder_in_use(encoder))
continue;
if (nv_encoder->dcb->type == OUTPUT_ANALOG ||
nv_encoder->dcb->type == OUTPUT_TV)
dac |= (1 << nv_encoder->or);
else
sor |= (1 << nv_encoder->or);
}
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_ANALOG ||
nv_encoder->dcb->type == OUTPUT_TV) {
if (dac & (1 << nv_encoder->or))
continue;
} else {
if (sor & (1 << nv_encoder->or))
continue;
}
nv_encoder->disconnect(nv_encoder);
}
nv50_crtc_blank(nv_crtc, true);
}

17
drivers/gpu/drm/nouveau/nv50_dac.c
View File

@ -37,13 +37,17 @@
#include "nv50_display.h"
static void
nv50_dac_disconnect(struct nouveau_encoder *nv_encoder)
nv50_dac_disconnect(struct drm_encoder *encoder)
{
struct drm_device *dev = to_drm_encoder(nv_encoder)->dev;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_device *dev = encoder->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *evo = dev_priv->evo;
int ret;
if (!nv_encoder->crtc)
return;
NV_DEBUG_KMS(dev, "Disconnecting DAC %d\n", nv_encoder->or);
ret = RING_SPACE(evo, 2);
@ -53,6 +57,8 @@ nv50_dac_disconnect(struct nouveau_encoder *nv_encoder)
}
BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 1);
OUT_RING(evo, 0);
nv_encoder->crtc = NULL;
}
static enum drm_connector_status
@ -243,6 +249,8 @@ nv50_dac_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 2);
OUT_RING(evo, mode_ctl);
OUT_RING(evo, mode_ctl2);
nv_encoder->crtc = encoder->crtc;
}
static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = {
@ -253,7 +261,8 @@ static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = {
.prepare = nv50_dac_prepare,
.commit = nv50_dac_commit,
.mode_set = nv50_dac_mode_set,
.detect = nv50_dac_detect
.detect = nv50_dac_detect,
.disable = nv50_dac_disconnect
};
static void
@ -288,8 +297,6 @@ nv50_dac_create(struct drm_connector *connector, struct dcb_entry *entry)
nv_encoder->dcb = entry;
nv_encoder->or = ffs(entry->or) - 1;
nv_encoder->disconnect = nv50_dac_disconnect;
drm_encoder_init(connector->dev, encoder, &nv50_dac_encoder_funcs,
DRM_MODE_ENCODER_DAC);
drm_encoder_helper_add(encoder, &nv50_dac_helper_funcs);

32
drivers/gpu/drm/nouveau/nv50_sor.c
View File

@ -37,13 +37,17 @@
#include "nv50_display.h"
static void
nv50_sor_disconnect(struct nouveau_encoder *nv_encoder)
nv50_sor_disconnect(struct drm_encoder *encoder)
{
struct drm_device *dev = to_drm_encoder(nv_encoder)->dev;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_device *dev = encoder->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *evo = dev_priv->evo;
int ret;
if (!nv_encoder->crtc)
return;
NV_DEBUG_KMS(dev, "Disconnecting SOR %d\n", nv_encoder->or);
ret = RING_SPACE(evo, 2);
@ -53,6 +57,9 @@ nv50_sor_disconnect(struct nouveau_encoder *nv_encoder)
}
BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
OUT_RING(evo, 0);
nv_encoder->crtc = NULL;
nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
}
static void
@ -94,14 +101,16 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode)
uint32_t val;
int or = nv_encoder->or;
NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode);
NV_DEBUG_KMS(dev, "or %d type %d mode %d\n", or, nv_encoder->dcb->type, mode);
nv_encoder->last_dpms = mode;
list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nvenc = nouveau_encoder(enc);
if (nvenc == nv_encoder ||
nvenc->disconnect != nv50_sor_disconnect ||
(nvenc->dcb->type != OUTPUT_TMDS &&
nvenc->dcb->type != OUTPUT_LVDS &&
nvenc->dcb->type != OUTPUT_DP) ||
nvenc->dcb->or != nv_encoder->dcb->or)
continue;
@ -239,6 +248,14 @@ nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
}
BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
OUT_RING(evo, mode_ctl);
nv_encoder->crtc = encoder->crtc;
}
static struct drm_crtc *
nv50_sor_crtc_get(struct drm_encoder *encoder)
{
return nouveau_encoder(encoder)->crtc;
}
static const struct drm_encoder_helper_funcs nv50_sor_helper_funcs = {
@ -249,7 +266,9 @@ static const struct drm_encoder_helper_funcs nv50_sor_helper_funcs = {
.prepare = nv50_sor_prepare,
.commit = nv50_sor_commit,
.mode_set = nv50_sor_mode_set,
.detect = NULL
.get_crtc = nv50_sor_crtc_get,
.detect = NULL,
.disable = nv50_sor_disconnect
};
static void
@ -300,8 +319,7 @@ nv50_sor_create(struct drm_connector *connector, struct dcb_entry *entry)
nv_encoder->dcb = entry;
nv_encoder->or = ffs(entry->or) - 1;
nv_encoder->disconnect = nv50_sor_disconnect;
nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
drm_encoder_init(dev, encoder, &nv50_sor_encoder_funcs, type);
drm_encoder_helper_add(encoder, &nv50_sor_helper_funcs);