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drm/nouveau: fix pcirom vbios shadow breakage from acpi rom patch 

On nv50 it became impossible to attempt a PCI ROM shadow of the VBIOS,
which will break some setups.

This patch also removes the different ordering of shadow methods for
pre-nv50 chipsets.  The reason for the different ordering was paranoia,
but it should hopefully be OK to try shadowing PRAMIN first.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-07-12 13:15:44 +10:00
parent dad9acff50
commit 41090eb424
1 changed files with 9 additions and 24 deletions
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33
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -203,36 +203,26 @@ struct methods {
const bool rw;
};
static struct methods nv04_methods[] = {
{ "PROM", load_vbios_prom, false },
static struct methods shadow_methods[] = {
{ "PRAMIN", load_vbios_pramin, true },
{ "PROM", load_vbios_prom, false },
{ "PCIROM", load_vbios_pci, true },
};
static struct methods nv50_methods[] = {
{ "ACPI", load_vbios_acpi, true },
{ "PRAMIN", load_vbios_pramin, true },
{ "PROM", load_vbios_prom, false },
{ "PCIROM", load_vbios_pci, true },
};
#define METHODCNT 3
static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct methods *methods;
int i;
const int nr_methods = ARRAY_SIZE(shadow_methods);
struct methods *methods = shadow_methods;
int testscore = 3;
int scores[METHODCNT];
int scores[nr_methods], i;
if (nouveau_vbios) {
methods = nv04_methods;
for (i = 0; i < METHODCNT; i++)
for (i = 0; i < nr_methods; i++)
if (!strcasecmp(nouveau_vbios, methods[i].desc))
break;
if (i < METHODCNT) {
if (i < nr_methods) {
NV_INFO(dev, "Attempting to use BIOS image from %s\n",
methods[i].desc);
@ -244,12 +234,7 @@ static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios);
}
if (dev_priv->card_type < NV_50)
methods = nv04_methods;
else
methods = nv50_methods;
for (i = 0; i < METHODCNT; i++) {
for (i = 0; i < nr_methods; i++) {
NV_TRACE(dev, "Attempting to load BIOS image from %s\n",
methods[i].desc);
data[0] = data[1] = 0; /* avoid reuse of previous image */
@ -260,7 +245,7 @@ static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
}
while (--testscore > 0) {
for (i = 0; i < METHODCNT; i++) {
for (i = 0; i < nr_methods; i++) {
if (scores[i] == testscore) {
NV_TRACE(dev, "Using BIOS image from %s\n",
methods[i].desc);