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drm/nv50-/disp: audit and version SOR_HDMI_PWR method

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The full object interfaces are about to be exposed to userspace, so we
need to check for any security-related issues and version the structs
to make it easier to handle any changes we may need in the future.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-08-10 04:10:26 +10:00
parent 120b0c39c7
commit e00f223538
13 changed files with 121 additions and 45 deletions
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31
drivers/gpu/drm/nouveau/core/engine/disp/hdminv84.c
View File

@ -22,17 +22,38 @@
* Authors: Ben Skeggs
*/
#include <core/os.h>
#include <core/class.h>
#include <core/client.h>
#include <nvif/unpack.h>
#include <nvif/class.h>
#include "nv50.h"
int
nv84_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
nv84_hdmi_ctrl(NV50_DISP_MTHD_V1)
{
const u32 hoff = (head * 0x800);
union {
struct nv50_disp_sor_hdmi_pwr_v0 v0;
} *args = data;
u32 ctrl;
int ret;
if (!(data & NV84_DISP_SOR_HDMI_PWR_STATE_ON)) {
nv_ioctl(object, "disp sor hdmi ctrl size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nv_ioctl(object, "disp sor hdmi ctrl vers %d state %d "
"max_ac_packet %d rekey %d\n",
args->v0.version, args->v0.state,
args->v0.max_ac_packet, args->v0.rekey);
if (args->v0.max_ac_packet > 0x1f || args->v0.rekey > 0x7f)
return -EINVAL;
ctrl = 0x40000000 * !!args->v0.state;
ctrl |= args->v0.max_ac_packet << 16;
ctrl |= args->v0.rekey;
ctrl |= 0x1f000000; /* ??? */
} else
return ret;
if (!(ctrl & 0x40000000)) {
nv_mask(priv, 0x6165a4 + hoff, 0x40000000, 0x00000000);
nv_mask(priv, 0x616520 + hoff, 0x00000001, 0x00000000);
nv_mask(priv, 0x616500 + hoff, 0x00000001, 0x00000000);
@ -65,6 +86,6 @@ nv84_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
nv_mask(priv, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
/* HDMI_CTRL */
nv_mask(priv, 0x6165a4 + hoff, 0x5f1f007f, data | 0x1f000000 /* ??? */);
nv_mask(priv, 0x6165a4 + hoff, 0x5f1f007f, ctrl);
return 0;
}

33
drivers/gpu/drm/nouveau/core/engine/disp/hdminva3.c
View File

@ -22,17 +22,38 @@
* Authors: Ben Skeggs
*/
#include <core/os.h>
#include <core/class.h>
#include <core/client.h>
#include <nvif/unpack.h>
#include <nvif/class.h>
#include "nv50.h"
int
nva3_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
nva3_hdmi_ctrl(NV50_DISP_MTHD_V1)
{
const u32 soff = (or * 0x800);
const u32 soff = outp->or * 0x800;
union {
struct nv50_disp_sor_hdmi_pwr_v0 v0;
} *args = data;
u32 ctrl;
int ret;
if (!(data & NV84_DISP_SOR_HDMI_PWR_STATE_ON)) {
nv_ioctl(object, "disp sor hdmi ctrl size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nv_ioctl(object, "disp sor hdmi ctrl vers %d state %d "
"max_ac_packet %d rekey %d\n",
args->v0.version, args->v0.state,
args->v0.max_ac_packet, args->v0.rekey);
if (args->v0.max_ac_packet > 0x1f || args->v0.rekey > 0x7f)
return -EINVAL;
ctrl = 0x40000000 * !!args->v0.state;
ctrl |= args->v0.max_ac_packet << 16;
ctrl |= args->v0.rekey;
ctrl |= 0x1f000000; /* ??? */
} else
return ret;
if (!(ctrl & 0x40000000)) {
nv_mask(priv, 0x61c5a4 + soff, 0x40000000, 0x00000000);
nv_mask(priv, 0x61c520 + soff, 0x00000001, 0x00000000);
nv_mask(priv, 0x61c500 + soff, 0x00000001, 0x00000000);
@ -65,6 +86,6 @@ nva3_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
nv_mask(priv, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
/* HDMI_CTRL */
nv_mask(priv, 0x61c5a4 + soff, 0x5f1f007f, data | 0x1f000000 /* ??? */);
nv_mask(priv, 0x61c5a4 + soff, 0x5f1f007f, ctrl);
return 0;
}

30
drivers/gpu/drm/nouveau/core/engine/disp/hdminvd0.c
View File

@ -22,17 +22,37 @@
* Authors: Ben Skeggs
*/
#include <core/os.h>
#include <core/class.h>
#include <core/client.h>
#include <nvif/unpack.h>
#include <nvif/class.h>
#include "nv50.h"
int
nvd0_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
nvd0_hdmi_ctrl(NV50_DISP_MTHD_V1)
{
const u32 hoff = (head * 0x800);
union {
struct nv50_disp_sor_hdmi_pwr_v0 v0;
} *args = data;
u32 ctrl;
int ret;
if (!(data & NV84_DISP_SOR_HDMI_PWR_STATE_ON)) {
nv_ioctl(object, "disp sor hdmi ctrl size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nv_ioctl(object, "disp sor hdmi ctrl vers %d state %d "
"max_ac_packet %d rekey %d\n",
args->v0.version, args->v0.state,
args->v0.max_ac_packet, args->v0.rekey);
if (args->v0.max_ac_packet > 0x1f || args->v0.rekey > 0x7f)
return -EINVAL;
ctrl = 0x40000000 * !!args->v0.state;
ctrl |= args->v0.max_ac_packet << 16;
ctrl |= args->v0.rekey;
} else
return ret;
if (!(ctrl & 0x40000000)) {
nv_mask(priv, 0x616798 + hoff, 0x40000000, 0x00000000);
nv_mask(priv, 0x6167a4 + hoff, 0x00000001, 0x00000000);
nv_mask(priv, 0x616714 + hoff, 0x00000001, 0x00000000);
@ -54,7 +74,7 @@ nvd0_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data)
nv_mask(priv, 0x6167a4 + hoff, 0x00000001, 0x00000001);
/* HDMI_CTRL */
nv_mask(priv, 0x616798 + hoff, 0x401f007f, data);
nv_mask(priv, 0x616798 + hoff, 0x401f007f, ctrl);
/* NFI, audio doesn't work without it though.. */
nv_mask(priv, 0x616548 + hoff, 0x00000070, 0x00000000);

4
drivers/gpu/drm/nouveau/core/engine/disp/nv50.c
View File

@ -909,6 +909,10 @@ nv50_disp_base_mthd(struct nouveau_object *object, u32 mthd,
if (!priv->sor.hda_eld)
return -ENODEV;
return priv->sor.hda_eld(object, priv, data, size, head, outp);
case NV50_DISP_MTHD_V1_SOR_HDMI_PWR:
if (!priv->sor.hdmi)
return -ENODEV;
return priv->sor.hdmi(object, priv, data, size, head, outp);
default:
break;
}

8
drivers/gpu/drm/nouveau/core/engine/disp/nv50.h
View File

@ -48,7 +48,7 @@ struct nv50_disp_priv {
int nr;
int (*power)(NV50_DISP_MTHD_V1);
int (*hda_eld)(NV50_DISP_MTHD_V1);
int (*hdmi)(struct nv50_disp_priv *, int head, int sor, u32);
int (*hdmi)(NV50_DISP_MTHD_V1);
u32 lvdsconf;
} sor;
struct {
@ -73,9 +73,9 @@ int nv50_dac_sense(NV50_DISP_MTHD_V1);
int nva3_hda_eld(NV50_DISP_MTHD_V1);
int nvd0_hda_eld(NV50_DISP_MTHD_V1);
int nv84_hdmi_ctrl(struct nv50_disp_priv *, int, int, u32);
int nva3_hdmi_ctrl(struct nv50_disp_priv *, int, int, u32);
int nvd0_hdmi_ctrl(struct nv50_disp_priv *, int, int, u32);
int nv84_hdmi_ctrl(NV50_DISP_MTHD_V1);
int nva3_hdmi_ctrl(NV50_DISP_MTHD_V1);
int nvd0_hdmi_ctrl(NV50_DISP_MTHD_V1);
int nv50_sor_mthd(struct nouveau_object *, u32, void *, u32);
int nv50_sor_power(NV50_DISP_MTHD_V1);

1
drivers/gpu/drm/nouveau/core/engine/disp/nv84.c
View File

@ -215,7 +215,6 @@ nv84_disp_sclass[] = {
struct nouveau_omthds
nv84_disp_base_omthds[] = {
{ HEAD_MTHD(NV50_DISP_SCANOUTPOS) , nv50_disp_base_scanoutpos },
{ SOR_MTHD(NV84_DISP_SOR_HDMI_PWR) , nv50_sor_mthd },
{ SOR_MTHD(NV50_DISP_SOR_LVDS_SCRIPT) , nv50_sor_mthd },
{ PIOR_MTHD(NV50_DISP_PIOR_PWR) , nv50_pior_mthd },
{ PIOR_MTHD(NV50_DISP_PIOR_TMDS_PWR) , nv50_pior_mthd },

1
drivers/gpu/drm/nouveau/core/engine/disp/nv94.c
View File

@ -74,7 +74,6 @@ nv94_disp_sclass[] = {
static struct nouveau_omthds
nv94_disp_base_omthds[] = {
{ HEAD_MTHD(NV50_DISP_SCANOUTPOS) , nv50_disp_base_scanoutpos },
{ SOR_MTHD(NV84_DISP_SOR_HDMI_PWR) , nv50_sor_mthd },
{ SOR_MTHD(NV50_DISP_SOR_LVDS_SCRIPT) , nv50_sor_mthd },
{ SOR_MTHD(NV94_DISP_SOR_DP_PWR) , nv50_sor_mthd },
{ PIOR_MTHD(NV50_DISP_PIOR_PWR) , nv50_pior_mthd },

1
drivers/gpu/drm/nouveau/core/engine/disp/nva3.c
View File

@ -46,7 +46,6 @@ nva3_disp_sclass[] = {
static struct nouveau_omthds
nva3_disp_base_omthds[] = {
{ HEAD_MTHD(NV50_DISP_SCANOUTPOS) , nv50_disp_base_scanoutpos },
{ SOR_MTHD(NV84_DISP_SOR_HDMI_PWR) , nv50_sor_mthd },
{ SOR_MTHD(NV50_DISP_SOR_LVDS_SCRIPT) , nv50_sor_mthd },
{ SOR_MTHD(NV94_DISP_SOR_DP_PWR) , nv50_sor_mthd },
{ PIOR_MTHD(NV50_DISP_PIOR_PWR) , nv50_pior_mthd },

1
drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
View File

@ -712,7 +712,6 @@ nvd0_disp_base_ofuncs = {
struct nouveau_omthds
nvd0_disp_base_omthds[] = {
{ HEAD_MTHD(NV50_DISP_SCANOUTPOS) , nvd0_disp_base_scanoutpos },
{ SOR_MTHD(NV84_DISP_SOR_HDMI_PWR) , nv50_sor_mthd },
{ SOR_MTHD(NV50_DISP_SOR_LVDS_SCRIPT) , nv50_sor_mthd },
{ SOR_MTHD(NV94_DISP_SOR_DP_PWR) , nv50_sor_mthd },
{ PIOR_MTHD(NV50_DISP_PIOR_PWR) , nv50_pior_mthd },

3
drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c
View File

@ -84,9 +84,6 @@ nv50_sor_mthd(struct nouveau_object *object, u32 mthd, void *args, u32 size)
}
switch (mthd & ~0x3f) {
case NV84_DISP_SOR_HDMI_PWR:
ret = priv->sor.hdmi(priv, head, or, data);
break;
case NV50_DISP_SOR_LVDS_SCRIPT:
priv->sor.lvdsconf = data & NV50_DISP_SOR_LVDS_SCRIPT_ID;
ret = 0;

6
drivers/gpu/drm/nouveau/core/include/core/class.h
View File

@ -59,12 +59,6 @@ struct nv04_display_scanoutpos {
#define NV50_DISP_SOR_MTHD_LINK 0x00000004
#define NV50_DISP_SOR_MTHD_OR 0x00000003
#define NV84_DISP_SOR_HDMI_PWR 0x00012000
#define NV84_DISP_SOR_HDMI_PWR_STATE 0x40000000
#define NV84_DISP_SOR_HDMI_PWR_STATE_OFF 0x00000000
#define NV84_DISP_SOR_HDMI_PWR_STATE_ON 0x40000000
#define NV84_DISP_SOR_HDMI_PWR_MAX_AC_PACKET 0x001f0000
#define NV84_DISP_SOR_HDMI_PWR_REKEY 0x0000007f
#define NV50_DISP_SOR_LVDS_SCRIPT 0x00013000
#define NV50_DISP_SOR_LVDS_SCRIPT_ID 0x0000ffff
#define NV94_DISP_SOR_DP_PWR 0x00016000

39
drivers/gpu/drm/nouveau/nv50_display.c
View File

@ -1717,25 +1717,32 @@ nv50_hdmi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
struct nouveau_connector *nv_connector;
struct nv50_disp *disp = nv50_disp(encoder->dev);
const u32 moff = (nv_crtc->index << 3) | nv_encoder->or;
u32 rekey = 56; /* binary driver, and tegra constant */
struct {
struct nv50_disp_mthd_v1 base;
struct nv50_disp_sor_hdmi_pwr_v0 pwr;
} args = {
.base.version = 1,
.base.method = NV50_DISP_MTHD_V1_SOR_HDMI_PWR,
.base.hasht = nv_encoder->dcb->hasht,
.base.hashm = (0xf0ff & nv_encoder->dcb->hashm) |
(0x0100 << nv_crtc->index),
.pwr.state = 1,
.pwr.rekey = 56, /* binary driver, and tegra, constant */
};
struct nouveau_connector *nv_connector;
u32 max_ac_packet;
u32 data;
nv_connector = nouveau_encoder_connector_get(nv_encoder);
if (!drm_detect_hdmi_monitor(nv_connector->edid))
return;
max_ac_packet = mode->htotal - mode->hdisplay;
max_ac_packet -= rekey;
max_ac_packet -= args.pwr.rekey;
max_ac_packet -= 18; /* constant from tegra */
max_ac_packet /= 32;
data = NV84_DISP_SOR_HDMI_PWR_STATE_ON | (max_ac_packet << 16) | rekey;
nvif_exec(disp->disp, NV84_DISP_SOR_HDMI_PWR + moff, &data, sizeof(data));
args.pwr.max_ac_packet = max_ac_packet / 32;
nvif_mthd(disp->disp, 0, &args, sizeof(args));
nv50_audio_mode_set(encoder, mode);
}
@ -1744,12 +1751,20 @@ nv50_hdmi_disconnect(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nv50_disp *disp = nv50_disp(encoder->dev);
const u32 moff = (nv_crtc->index << 3) | nv_encoder->or;
u32 data = 0;
struct {
struct nv50_disp_mthd_v1 base;
struct nv50_disp_sor_hdmi_pwr_v0 pwr;
} args = {
.base.version = 1,
.base.method = NV50_DISP_MTHD_V1_SOR_HDMI_PWR,
.base.hasht = nv_encoder->dcb->hasht,
.base.hashm = (0xf0ff & nv_encoder->dcb->hashm) |
(0x0100 << nv_crtc->index),
};
nv50_audio_disconnect(encoder);
nvif_exec(disp->disp, NV84_DISP_SOR_HDMI_PWR + moff, &data, sizeof(data));
nvif_mthd(disp->disp, 0, &args, sizeof(args));
}
/******************************************************************************

8
drivers/gpu/drm/nouveau/nvif/class.h
View File

@ -352,4 +352,12 @@ struct nv50_disp_sor_hda_eld_v0 {
__u8 data[];
};
struct nv50_disp_sor_hdmi_pwr_v0 {
__u8 version;
__u8 state;
__u8 max_ac_packet;
__u8 rekey;
__u8 pad04[4];
};
#endif