drm/nouveau/bios/disp: fix handling of "match any protocol" entries

As it turns out, a value of 0xff means "any protocol" and not "VGA".

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h
index db10c11..c5a6ebd 100644 (file)
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h
@@ -25,7 +25,8 @@ u16 nvbios_outp_match(struct nvkm_bios *, u16 type, u16 mask,
                      u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_outp *);
 
 struct nvbios_ocfg {
-       u16 match;
+       u8  proto;
+       u8  flags;
        u16 clkcmp[2];
 };
 
@@ -33,7 +34,7 @@ u16 nvbios_ocfg_entry(struct nvkm_bios *, u16 outp, u8 idx,
                      u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
 u16 nvbios_ocfg_parse(struct nvkm_bios *, u16 outp, u8 idx,
                      u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ocfg *);
-u16 nvbios_ocfg_match(struct nvkm_bios *, u16 outp, u16 type,
+u16 nvbios_ocfg_match(struct nvkm_bios *, u16 outp, u8 proto, u8 flags,
                      u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ocfg *);
 u16 nvbios_oclk_match(struct nvkm_bios *, u16 cmp, u32 khz);
 #endif

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c
index f031466..5dd3438 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c
@@ -76,6 +76,7 @@ exec_lookup(struct nv50_disp *disp, int head, int or, u32 ctrl,
        mask |= 0x0001 << or;
        mask |= 0x0100 << head;
 
+
        list_for_each_entry(outp, &disp->base.outp, head) {
                if ((outp->info.hasht & 0xff) == type &&
                    (outp->info.hashm & mask) == mask) {
@@ -155,25 +156,21 @@ exec_clkcmp(struct nv50_disp *disp, int head, int id, u32 pclk, u32 *conf)
        if (!outp)
                return NULL;
 
+       *conf = (ctrl & 0x00000f00) >> 8;
        switch (outp->info.type) {
        case DCB_OUTPUT_TMDS:
-               *conf = (ctrl & 0x00000f00) >> 8;
                if (*conf == 5)
                        *conf |= 0x0100;
                break;
        case DCB_OUTPUT_LVDS:
-               *conf = disp->sor.lvdsconf;
-               break;
-       case DCB_OUTPUT_DP:
-               *conf = (ctrl & 0x00000f00) >> 8;
+               *conf |= disp->sor.lvdsconf;
                break;
-       case DCB_OUTPUT_ANALOG:
        default:
-               *conf = 0x00ff;
                break;
        }
 
-       data = nvbios_ocfg_match(bios, data, *conf, &ver, &hdr, &cnt, &len, &info2);
+       data = nvbios_ocfg_match(bios, data, *conf & 0xff, *conf >> 8,
+                                &ver, &hdr, &cnt, &len, &info2);
        if (data && id < 0xff) {
                data = nvbios_oclk_match(bios, info2.clkcmp[id], pclk);
                if (data) {

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
index 4226d21..fcb1b0c 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
@@ -387,22 +387,17 @@ exec_clkcmp(struct nv50_disp *disp, int head, int id, u32 pclk, u32 *conf)
        if (!outp)
                return NULL;
 
+       *conf = (ctrl & 0x00000f00) >> 8;
        if (outp->info.location == 0) {
                switch (outp->info.type) {
                case DCB_OUTPUT_TMDS:
-                       *conf = (ctrl & 0x00000f00) >> 8;
                        if (*conf == 5)
                                *conf |= 0x0100;
                        break;
                case DCB_OUTPUT_LVDS:
-                       *conf = disp->sor.lvdsconf;
+                       *conf |= disp->sor.lvdsconf;
                        break;
-               case DCB_OUTPUT_DP:
-                       *conf = (ctrl & 0x00000f00) >> 8;
-                       break;
-               case DCB_OUTPUT_ANALOG:
                default:
-                       *conf = 0x00ff;
                        break;
                }
        } else {
@@ -410,7 +405,8 @@ exec_clkcmp(struct nv50_disp *disp, int head, int id, u32 pclk, u32 *conf)
                pclk = pclk / 2;
        }
 
-       data = nvbios_ocfg_match(bios, data, *conf, &ver, &hdr, &cnt, &len, &info2);
+       data = nvbios_ocfg_match(bios, data, *conf & 0xff, *conf >> 8,
+                                &ver, &hdr, &cnt, &len, &info2);
        if (data && id < 0xff) {
                data = nvbios_oclk_match(bios, info2.clkcmp[id], pclk);
                if (data) {

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/disp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/disp.c
index a5e9213..9efb1b4 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/disp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/disp.c
@@ -141,7 +141,8 @@ nvbios_ocfg_parse(struct nvkm_bios *bios, u16 outp, u8 idx,
 {
        u16 data = nvbios_ocfg_entry(bios, outp, idx, ver, hdr, cnt, len);
        if (data) {
-               info->match     = nvbios_rd16(bios, data + 0x00);
+               info->proto     = nvbios_rd08(bios, data + 0x00);
+               info->flags     = nvbios_rd16(bios, data + 0x01);
                info->clkcmp[0] = nvbios_rd16(bios, data + 0x02);
                info->clkcmp[1] = nvbios_rd16(bios, data + 0x04);
        }
@@ -149,12 +150,13 @@ nvbios_ocfg_parse(struct nvkm_bios *bios, u16 outp, u8 idx,
 }
 
 u16
-nvbios_ocfg_match(struct nvkm_bios *bios, u16 outp, u16 type,
+nvbios_ocfg_match(struct nvkm_bios *bios, u16 outp, u8 proto, u8 flags,
                  u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ocfg *info)
 {
        u16 data, idx = 0;
        while ((data = nvbios_ocfg_parse(bios, outp, idx++, ver, hdr, cnt, len, info))) {
-               if (info->match == type)
+               if ((info->proto == proto || info->proto == 0xff) &&
+                   (info->flags == flags))
                        break;
        }
        return data;