From: Ben Skeggs Date: Sat, 9 Aug 2014 18:10:26 +0000 (+1000) Subject: drm/nv50-/disp: audit and version SOR_HDA_ELD method X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=120b0c39c75688864e4a25e71cf3ed40e8e18651;p=deliverable%2Flinux.git drm/nv50-/disp: audit and version SOR_HDA_ELD method 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 --- diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/hdanva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/hdanva3.c index a19e7d79b847..8b4e06abe533 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/hdanva3.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/hdanva3.c @@ -22,25 +22,37 @@ * Authors: Ben Skeggs */ -#include -#include +#include +#include +#include #include "nv50.h" int -nva3_hda_eld(struct nv50_disp_priv *priv, int or, u8 *data, u32 size) +nva3_hda_eld(NV50_DISP_MTHD_V1) { - const u32 soff = (or * 0x800); - int i; + union { + struct nv50_disp_sor_hda_eld_v0 v0; + } *args = data; + const u32 soff = outp->or * 0x800; + int ret, i; - if (data && data[0]) { + nv_ioctl(object, "disp sor hda eld size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_ioctl(object, "disp sor hda eld vers %d\n", args->v0.version); + if (size > 0x60) + return -E2BIG; + } else + return ret; + + if (size && args->v0.data[0]) { for (i = 0; i < size; i++) - nv_wr32(priv, 0x61c440 + soff, (i << 8) | data[i]); + nv_wr32(priv, 0x61c440 + soff, (i << 8) | args->v0.data[0]); for (; i < 0x60; i++) nv_wr32(priv, 0x61c440 + soff, (i << 8)); nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000003); } else - if (data) { + if (size) { nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000001); } else { nv_mask(priv, 0x61c448 + soff, 0x80000003, 0x80000000); diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/hdanvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/hdanvd0.c index 717639386ced..baf558fc12fb 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/hdanvd0.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/hdanvd0.c @@ -22,8 +22,9 @@ * Authors: Ben Skeggs */ -#include -#include +#include +#include +#include #include #include @@ -33,19 +34,30 @@ #include "nv50.h" int -nvd0_hda_eld(struct nv50_disp_priv *priv, int or, u8 *data, u32 size) +nvd0_hda_eld(NV50_DISP_MTHD_V1) { - const u32 soff = (or * 0x030); - int i; + union { + struct nv50_disp_sor_hda_eld_v0 v0; + } *args = data; + const u32 soff = outp->or * 0x030; + int ret, i; - if (data && data[0]) { + nv_ioctl(object, "disp sor hda eld size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_ioctl(object, "disp sor hda eld vers %d\n", args->v0.version); + if (size > 0x60) + return -E2BIG; + } else + return ret; + + if (size && args->v0.data[0]) { for (i = 0; i < size; i++) - nv_wr32(priv, 0x10ec00 + soff, (i << 8) | data[i]); + nv_wr32(priv, 0x10ec00 + soff, (i << 8) | args->v0.data[i]); for (; i < 0x60; i++) nv_wr32(priv, 0x10ec00 + soff, (i << 8)); nv_mask(priv, 0x10ec10 + soff, 0x80000003, 0x80000003); } else - if (data) { + if (size) { nv_mask(priv, 0x10ec10 + soff, 0x80000003, 0x80000001); } else { nv_mask(priv, 0x10ec10 + soff, 0x80000003, 0x80000000); diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 869789ff8ea3..9381b161f309 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -905,6 +905,10 @@ nv50_disp_base_mthd(struct nouveau_object *object, u32 mthd, return priv->dac.sense(object, priv, data, size, head, outp); case NV50_DISP_MTHD_V1_SOR_PWR: return priv->sor.power(object, priv, data, size, head, outp); + case NV50_DISP_MTHD_V1_SOR_HDA_ELD: + if (!priv->sor.hda_eld) + return -ENODEV; + return priv->sor.hda_eld(object, priv, data, size, head, outp); default: break; } diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h index ea9f37d1cb27..a09875fedcf8 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h @@ -47,7 +47,7 @@ struct nv50_disp_priv { struct { int nr; int (*power)(NV50_DISP_MTHD_V1); - int (*hda_eld)(struct nv50_disp_priv *, int sor, u8 *, u32); + int (*hda_eld)(NV50_DISP_MTHD_V1); int (*hdmi)(struct nv50_disp_priv *, int head, int sor, u32); u32 lvdsconf; } sor; @@ -70,8 +70,8 @@ int nv50_dac_sense(NV50_DISP_MTHD_V1); #define SOR_MTHD(n) (n), (n) + 0x3f -int nva3_hda_eld(struct nv50_disp_priv *, int, u8 *, u32); -int nvd0_hda_eld(struct nv50_disp_priv *, int, u8 *, u32); +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); diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c index 92a54bdae6e0..ca42d7913f4e 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c @@ -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(NVA3_DISP_SOR_HDA_ELD) , nv50_sor_mthd }, { 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 }, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c index 27c9e9ee5291..77fe8cc633c7 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c @@ -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(NVA3_DISP_SOR_HDA_ELD) , nv50_sor_mthd }, { 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 }, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c index 16b19d47b40e..be7e235e9553 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c @@ -84,9 +84,6 @@ nv50_sor_mthd(struct nouveau_object *object, u32 mthd, void *args, u32 size) } switch (mthd & ~0x3f) { - case NVA3_DISP_SOR_HDA_ELD: - ret = priv->sor.hda_eld(priv, or, args, size); - break; case NV84_DISP_SOR_HDMI_PWR: ret = priv->sor.hdmi(priv, head, or, data); break; diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h index 98733df661b0..234e1175f038 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/class.h +++ b/drivers/gpu/drm/nouveau/core/include/core/class.h @@ -59,7 +59,6 @@ struct nv04_display_scanoutpos { #define NV50_DISP_SOR_MTHD_LINK 0x00000004 #define NV50_DISP_SOR_MTHD_OR 0x00000003 -#define NVA3_DISP_SOR_HDA_ELD 0x00010100 #define NV84_DISP_SOR_HDMI_PWR 0x00012000 #define NV84_DISP_SOR_HDMI_PWR_STATE 0x40000000 #define NV84_DISP_SOR_HDMI_PWR_STATE_OFF 0x00000000 diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index dc7f63f0177c..543ddb96feef 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1670,16 +1670,25 @@ nv50_audio_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode) struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); struct nouveau_connector *nv_connector; struct nv50_disp *disp = nv50_disp(encoder->dev); + struct { + struct nv50_disp_mthd_v1 base; + struct nv50_disp_sor_hda_eld_v0 eld; + u8 data[sizeof(nv_connector->base.eld)]; + } args = { + .base.version = 1, + .base.method = NV50_DISP_MTHD_V1_SOR_HDA_ELD, + .base.hasht = nv_encoder->dcb->hasht, + .base.hashm = nv_encoder->dcb->hashm, + }; nv_connector = nouveau_encoder_connector_get(nv_encoder); if (!drm_detect_monitor_audio(nv_connector->edid)) return; drm_edid_to_eld(&nv_connector->base, nv_connector->edid); + memcpy(args.data, nv_connector->base.eld, sizeof(args.data)); - nvif_exec(disp->disp, NVA3_DISP_SOR_HDA_ELD + nv_encoder->or, - nv_connector->base.eld, - nv_connector->base.eld[2] * 4); + nvif_mthd(disp->disp, 0, &args, sizeof(args)); } static void @@ -1687,8 +1696,17 @@ nv50_audio_disconnect(struct drm_encoder *encoder) { struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); struct nv50_disp *disp = nv50_disp(encoder->dev); + struct { + struct nv50_disp_mthd_v1 base; + struct nv50_disp_sor_hda_eld_v0 eld; + } args = { + .base.version = 1, + .base.method = NV50_DISP_MTHD_V1_SOR_HDA_ELD, + .base.hasht = nv_encoder->dcb->hasht, + .base.hashm = nv_encoder->dcb->hashm, + }; - nvif_exec(disp->disp, NVA3_DISP_SOR_HDA_ELD + nv_encoder->or, NULL, 0); + nvif_mthd(disp->disp, 0, &args, sizeof(args)); } /****************************************************************************** diff --git a/drivers/gpu/drm/nouveau/nvif/class.h b/drivers/gpu/drm/nouveau/nvif/class.h index 4afc264bab73..84d2926dd069 100644 --- a/drivers/gpu/drm/nouveau/nvif/class.h +++ b/drivers/gpu/drm/nouveau/nvif/class.h @@ -346,4 +346,10 @@ struct nv50_disp_sor_pwr_v0 { __u8 pad02[6]; }; +struct nv50_disp_sor_hda_eld_v0 { + __u8 version; + __u8 pad01[7]; + __u8 data[]; +}; + #endif