From: Ben Skeggs Date: Sat, 9 Aug 2014 18:10:26 +0000 (+1000) Subject: drm/nv50-/disp: audit and version SOR_PWR method X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d55b4af909bc16f7982c2b8b8656f0898158627b;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/nv50-/disp: audit and version SOR_PWR 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/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 2a7f97891650..869789ff8ea3 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -903,6 +903,8 @@ nv50_disp_base_mthd(struct nouveau_object *object, u32 mthd, return priv->dac.power(object, priv, data, size, head, outp); case NV50_DISP_MTHD_V1_DAC_LOAD: 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); default: break; } @@ -1031,7 +1033,6 @@ nv50_disp_base_ofuncs = { static struct nouveau_omthds nv50_disp_base_omthds[] = { { HEAD_MTHD(NV50_DISP_SCANOUTPOS) , nv50_disp_base_scanoutpos }, - { SOR_MTHD(NV50_DISP_SOR_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 }, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h index 138bc8cd1ddb..ea9f37d1cb27 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.h @@ -46,7 +46,7 @@ struct nv50_disp_priv { } dac; struct { int nr; - int (*power)(struct nv50_disp_priv *, int sor, u32 data); + int (*power)(NV50_DISP_MTHD_V1); int (*hda_eld)(struct nv50_disp_priv *, int sor, u8 *, u32); int (*hdmi)(struct nv50_disp_priv *, int head, int sor, u32); u32 lvdsconf; @@ -78,7 +78,7 @@ int nva3_hdmi_ctrl(struct nv50_disp_priv *, int, int, u32); int nvd0_hdmi_ctrl(struct nv50_disp_priv *, int, int, u32); int nv50_sor_mthd(struct nouveau_object *, u32, void *, u32); -int nv50_sor_power(struct nv50_disp_priv *, int, u32); +int nv50_sor_power(NV50_DISP_MTHD_V1); int nv94_sor_dp_train_init(struct nv50_disp_priv *, int, int, int, u16, u16, u32, struct dcb_output *); diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c index fed1a6ab6201..81a0e8d6c848 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv84.c @@ -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(NV50_DISP_SOR_PWR) , nv50_sor_mthd }, { 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 }, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c index fb978f168a93..ca8bab4844c1 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv94.c @@ -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(NV50_DISP_SOR_PWR) , 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/nva3.c b/drivers/gpu/drm/nouveau/core/engine/disp/nva3.c index ee474c75128c..92a54bdae6e0 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(NV50_DISP_SOR_PWR) , nv50_sor_mthd }, { 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 }, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c index 6f776a1d0f1a..27c9e9ee5291 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(NV50_DISP_SOR_PWR) , nv50_sor_mthd }, { 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 }, diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c index 3101248ee8ae..16b19d47b40e 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/sornv50.c @@ -22,8 +22,10 @@ * Authors: Ben Skeggs */ -#include +#include #include +#include +#include #include #include @@ -32,10 +34,23 @@ #include "nv50.h" int -nv50_sor_power(struct nv50_disp_priv *priv, int or, u32 data) +nv50_sor_power(NV50_DISP_MTHD_V1) { - const u32 stat = data & NV50_DISP_SOR_PWR_STATE; - const u32 soff = (or * 0x800); + union { + struct nv50_disp_sor_pwr_v0 v0; + } *args = data; + const u32 soff = outp->or * 0x800; + u32 stat; + int ret; + + nv_ioctl(object, "disp sor pwr size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "disp sor pwr vers %d state %d\n", + args->v0.version, args->v0.state); + stat = !!args->v0.state; + } else + return ret; + nv_wait(priv, 0x61c004 + soff, 0x80000000, 0x00000000); nv_mask(priv, 0x61c004 + soff, 0x80000001, 0x80000000 | stat); nv_wait(priv, 0x61c004 + soff, 0x80000000, 0x00000000); @@ -69,9 +84,6 @@ nv50_sor_mthd(struct nouveau_object *object, u32 mthd, void *args, u32 size) } switch (mthd & ~0x3f) { - case NV50_DISP_SOR_PWR: - ret = priv->sor.power(priv, or, data); - break; case NVA3_DISP_SOR_HDA_ELD: ret = priv->sor.hda_eld(priv, or, args, size); break; diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h index 6c102d3d6d94..98733df661b0 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/class.h +++ b/drivers/gpu/drm/nouveau/core/include/core/class.h @@ -59,10 +59,6 @@ struct nv04_display_scanoutpos { #define NV50_DISP_SOR_MTHD_LINK 0x00000004 #define NV50_DISP_SOR_MTHD_OR 0x00000003 -#define NV50_DISP_SOR_PWR 0x00010000 -#define NV50_DISP_SOR_PWR_STATE 0x00000001 -#define NV50_DISP_SOR_PWR_STATE_ON 0x00000001 -#define NV50_DISP_SOR_PWR_STATE_OFF 0x00000000 #define NVA3_DISP_SOR_HDA_ELD 0x00010100 #define NV84_DISP_SOR_HDMI_PWR 0x00012000 #define NV84_DISP_SOR_HDMI_PWR_STATE 0x40000000 diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index bb963076583d..dc7f63f0177c 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1482,7 +1482,6 @@ nv50_dac_dpms(struct drm_encoder *encoder, int mode) mode != DRM_MODE_DPMS_OFF), }; - nvif_mthd(disp->disp, 0, &args, sizeof(args)); } @@ -1742,8 +1741,18 @@ static void nv50_sor_dpms(struct drm_encoder *encoder, int mode) { 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_pwr_v0 pwr; + } args = { + .base.version = 1, + .base.method = NV50_DISP_MTHD_V1_SOR_PWR, + .base.hasht = nv_encoder->dcb->hasht, + .base.hashm = nv_encoder->dcb->hashm, + .pwr.state = mode == DRM_MODE_DPMS_ON, + }; struct drm_device *dev = encoder->dev; - struct nv50_disp *disp = nv50_disp(dev); struct drm_encoder *partner; u32 mthd, data; @@ -1768,15 +1777,14 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode) mthd |= nv_encoder->or; if (nv_encoder->dcb->type == DCB_OUTPUT_DP) { - data = 1; - nvif_exec(disp->disp, NV50_DISP_SOR_PWR | mthd, &data, sizeof(data)); + args.pwr.state = 1; + nvif_mthd(disp->disp, 0, &args, sizeof(args)); + data = (mode == DRM_MODE_DPMS_ON); mthd |= NV94_DISP_SOR_DP_PWR; + nvif_exec(disp->disp, mthd, &data, sizeof(data)); } else { - mthd |= NV50_DISP_SOR_PWR; + nvif_mthd(disp->disp, 0, &args, sizeof(args)); } - - data = (mode == DRM_MODE_DPMS_ON); - nvif_exec(disp->disp, mthd, &data, sizeof(data)); } static bool diff --git a/drivers/gpu/drm/nouveau/nvif/class.h b/drivers/gpu/drm/nouveau/nvif/class.h index 2200fea849d4..4afc264bab73 100644 --- a/drivers/gpu/drm/nouveau/nvif/class.h +++ b/drivers/gpu/drm/nouveau/nvif/class.h @@ -340,4 +340,10 @@ struct nv50_disp_dac_load_v0 { __u8 pad04[4]; }; +struct nv50_disp_sor_pwr_v0 { + __u8 version; + __u8 state; + __u8 pad02[6]; +}; + #endif