Merge remote-tracking branch 'metag/for-next'

[karo-tx-linux.git] / drivers / gpu / drm / nouveau / nvkm / subdev / bios / shadowof.c

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
index bd60d7dd09f51a45b70f120597ca38adaf8c102b..4bf486b57101367708bba2b6fe4bdd1d985f1d19 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
@@ -21,6 +21,7 @@
  *
  */
 #include "priv.h"
+
 #include <core/pci.h>
 
 #if defined(__powerpc__)
@@ -33,17 +34,26 @@ static u32
 of_read(void *data, u32 offset, u32 length, struct nvkm_bios *bios)
 {
        struct priv *priv = data;
-       if (offset + length <= priv->size) {
+       if (offset < priv->size) {
+               length = min_t(u32, length, priv->size - offset);
                memcpy_fromio(bios->data + offset, priv->data + offset, length);
                return length;
        }
        return 0;
 }
 
+static u32
+of_size(void *data)
+{
+       struct priv *priv = data;
+       return priv->size;
+}
+
 static void *
 of_init(struct nvkm_bios *bios, const char *name)
 {
-       struct pci_dev *pdev = bios->subdev.device->func->pci(bios->subdev.device)->pdev;
+       struct nvkm_device *device = bios->subdev.device;
+       struct pci_dev *pdev = device->func->pci(device)->pdev;
        struct device_node *dn;
        struct priv *priv;
        if (!(dn = pci_device_to_OF_node(pdev)))
@@ -62,7 +72,10 @@ nvbios_of = {
        .init = of_init,
        .fini = (void(*)(void *))kfree,
        .read = of_read,
+       .size = of_size,
        .rw = false,
+       .ignore_checksum = true,
+       .no_pcir = true,
 };
 #else
 const struct nvbios_source