[PATCH 04/14] nubus: Fix log spam

Finn Thain
2017-11-11T06:12:56Z

Testing shows that a single Radius PrecisionColor 24X display board,
which has 95 functional resources, produces over a thousand lines of
log messages. Suppress these messages with pr_debug().
Remove some redundant messages relating to nubus_get_subdir() calls.
Fix the format block debug messages which has the sequence of entries
backwards (my bad).
Move the "Scanning slots" message to its proper location.

Fixes: 71ae40e4cf33 ("nubus: Clean up printk calls")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
---
drivers/nubus/nubus.c | 124 +++++++++++++++++++++-----------------------------
1 file changed, 53 insertions(+), 71 deletions(-)

diff --git a/drivers/nubus/nubus.c b/drivers/nubus/nubus.c
index 8272d5a5d769..5607e58d5ca2 100644
--- a/drivers/nubus/nubus.c
+++ b/drivers/nubus/nubus.c
@@ -352,15 +352,15 @@ static int __init nubus_show_display_resource(struct nubus_dev *dev,
{
switch (ent->type) {
case NUBUS_RESID_GAMMADIR:
- pr_info(" gamma directory offset: 0x%06x\n", ent->data);
+ pr_debug(" gamma directory offset: 0x%06x\n", ent->data);
break;
case 0x0080 ... 0x0085:
- pr_info(" mode %02X info offset: 0x%06x\n",
- ent->type, ent->data);
+ pr_debug(" mode 0x%02x info offset: 0x%06x\n",
+ ent->type, ent->data);
break;
default:
- pr_info(" unknown resource %02X, data 0x%06x\n",
- ent->type, ent->data);
+ pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
+ ent->type, ent->data);
}
return 0;
}
@@ -374,12 +374,12 @@ static int __init nubus_show_network_resource(struct nubus_dev *dev,
char addr[6];

nubus_get_rsrc_mem(addr, ent, 6);
- pr_info(" MAC address: %pM\n", addr);
+ pr_debug(" MAC address: %pM\n", addr);
break;
}
default:
- pr_info(" unknown resource %02X, data 0x%06x\n",
- ent->type, ent->data);
+ pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
+ ent->type, ent->data);
}
return 0;
}
@@ -393,8 +393,8 @@ static int __init nubus_show_cpu_resource(struct nubus_dev *dev,
unsigned long meminfo[2];

nubus_get_rsrc_mem(&meminfo, ent, 8);
- pr_info(" memory: [ 0x%08lx 0x%08lx ]\n",
- meminfo[0], meminfo[1]);
+ pr_debug(" memory: [ 0x%08lx 0x%08lx ]\n",
+ meminfo[0], meminfo[1]);
break;
}
case NUBUS_RESID_ROMINFO:
@@ -402,13 +402,13 @@ static int __init nubus_show_cpu_resource(struct nubus_dev *dev,
unsigned long rominfo[2];

nubus_get_rsrc_mem(&rominfo, ent, 8);
- pr_info(" ROM: [ 0x%08lx 0x%08lx ]\n",
- rominfo[0], rominfo[1]);
+ pr_debug(" ROM: [ 0x%08lx 0x%08lx ]\n",
+ rominfo[0], rominfo[1]);
break;
}
default:
- pr_info(" unknown resource %02X, data 0x%06x\n",
- ent->type, ent->data);
+ pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
+ ent->type, ent->data);
}
return 0;
}
@@ -427,8 +427,8 @@ static int __init nubus_show_private_resource(struct nubus_dev *dev,
nubus_show_cpu_resource(dev, ent);
break;
default:
- pr_info(" unknown resource %02X, data 0x%06x\n",
- ent->type, ent->data);
+ pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
+ ent->type, ent->data);
}
return 0;
}
@@ -441,12 +441,9 @@ nubus_get_functional_resource(struct nubus_board *board, int slot,
struct nubus_dirent ent;
struct nubus_dev *dev;

- pr_info(" Function 0x%02x:\n", parent->type);
+ pr_debug(" Functional resource 0x%02x:\n", parent->type);
nubus_get_subdir(parent, &dir);

- pr_debug("%s: parent is 0x%p, dir is 0x%p\n",
- __func__, parent->base, dir.base);
-
/* Actually we should probably panic if this fails */
if ((dev = kzalloc(sizeof(*dev), GFP_ATOMIC)) == NULL)
return NULL;
@@ -465,14 +462,14 @@ nubus_get_functional_resource(struct nubus_board *board, int slot,
dev->type = nbtdata[1];
dev->dr_sw = nbtdata[2];
dev->dr_hw = nbtdata[3];
- pr_info(" type: [cat 0x%x type 0x%x sw 0x%x hw 0x%x]\n",
- nbtdata[0], nbtdata[1], nbtdata[2], nbtdata[3]);
+ pr_debug(" type: [cat 0x%x type 0x%x sw 0x%x hw 0x%x]\n",
+ nbtdata[0], nbtdata[1], nbtdata[2], nbtdata[3]);
break;
}
case NUBUS_RESID_NAME:
{
nubus_get_rsrc_str(dev->name, &ent, sizeof(dev->name));
- pr_info(" name: %s\n", dev->name);
+ pr_debug(" name: %s\n", dev->name);
break;
}
case NUBUS_RESID_DRVRDIR:
@@ -485,7 +482,7 @@ nubus_get_functional_resource(struct nubus_board *board, int slot,
nubus_get_subdir(&ent, &drvr_dir);
nubus_readdir(&drvr_dir, &drvr_ent);
dev->driver = nubus_dirptr(&drvr_ent);
- pr_info(" driver at: 0x%p\n", dev->driver);
+ pr_debug(" driver at: 0x%p\n", dev->driver);
break;
}
case NUBUS_RESID_MINOR_BASEOS:
@@ -493,20 +490,20 @@ nubus_get_functional_resource(struct nubus_board *board, int slot,
multiple framebuffers. It might be handy
for Ethernet as well */
nubus_get_rsrc_mem(&dev->iobase, &ent, 4);
- pr_info(" memory offset: 0x%08lx\n", dev->iobase);
+ pr_debug(" memory offset: 0x%08lx\n", dev->iobase);
break;
case NUBUS_RESID_MINOR_LENGTH:
/* Ditto */
nubus_get_rsrc_mem(&dev->iosize, &ent, 4);
- pr_info(" memory length: 0x%08lx\n", dev->iosize);
+ pr_debug(" memory length: 0x%08lx\n", dev->iosize);
break;
case NUBUS_RESID_FLAGS:
dev->flags = ent.data;
- pr_info(" flags: 0x%06x\n", dev->flags);
+ pr_debug(" flags: 0x%06x\n", dev->flags);
break;
case NUBUS_RESID_HWDEVID:
dev->hwdevid = ent.data;
- pr_info(" hwdevid: 0x%06x\n", dev->hwdevid);
+ pr_debug(" hwdevid: 0x%06x\n", dev->hwdevid);
break;
default:
/* Local/Private resources have their own
@@ -534,10 +531,8 @@ static int __init nubus_get_vidnames(struct nubus_board *board,
char name[36];
};

- pr_info(" video modes supported:\n");
+ pr_debug(" video modes supported:\n");
nubus_get_subdir(parent, &dir);
- pr_debug("%s: parent is 0x%p, dir is 0x%p\n",
- __func__, parent->base, dir.base);

while (nubus_readdir(&dir, &ent) != -1) {
struct vidmode mode;
@@ -551,7 +546,7 @@ static int __init nubus_get_vidnames(struct nubus_board *board,
size = sizeof(mode) - 1;
memset(&mode, 0, sizeof(mode));
nubus_get_rsrc_mem(&mode, &ent, size);
- pr_info(" %02X: (%02X) %s\n", ent.type,
+ pr_debug(" 0x%02x: 0x%04x %s\n", ent.type,
mode.id, mode.name);
}
return 0;
@@ -562,25 +557,16 @@ static int __init nubus_get_icon(struct nubus_board *board,
const struct nubus_dirent *ent)
{
/* Should be 32x32 if my memory serves me correctly */
- unsigned char icon[128];
- int x, y;
+ u32 icon[32];
+ int i;

nubus_get_rsrc_mem(&icon, ent, 128);
- pr_info(" icon:\n");
-
- /* We should actually plot these somewhere in the framebuffer
- init. This is just to demonstrate that they do, in fact,
- exist */
- for (y = 0; y < 32; y++) {
- pr_info(" ");
- for (x = 0; x < 32; x++) {
- if (icon[y * 4 + x / 8] & (0x80 >> (x % 8)))
- pr_cont("*");
- else
- pr_cont(" ");
- }
- pr_cont("\n");
- }
+ pr_debug(" icon:\n");
+ for (i = 0; i < 8; i++)
+ pr_debug(" %08x %08x %08x %08x\n",
+ icon[i * 4 + 0], icon[i * 4 + 1],
+ icon[i * 4 + 2], icon[i * 4 + 3]);
+
return 0;
}

@@ -592,10 +578,8 @@ static int __init nubus_get_vendorinfo(struct nubus_board *board,
static char *vendor_fields[6] = { "ID", "serial", "revision",
"part", "date", "unknown field" };

- pr_info(" vendor info:\n");
+ pr_debug(" vendor info:\n");
nubus_get_subdir(parent, &dir);
- pr_debug("%s: parent is 0x%p, dir is 0x%p\n",
- __func__, parent->base, dir.base);

while (nubus_readdir(&dir, &ent) != -1) {
char name[64];
@@ -604,7 +588,7 @@ static int __init nubus_get_vendorinfo(struct nubus_board *board,
nubus_get_rsrc_str(name, &ent, sizeof(name));
if (ent.type < 1 || ent.type > 5)
ent.type = 5;
- pr_info(" %s: %s\n", vendor_fields[ent.type - 1], name);
+ pr_debug(" %s: %s\n", vendor_fields[ent.type - 1], name);
}
return 0;
}
@@ -615,9 +599,8 @@ static int __init nubus_get_board_resource(struct nubus_board *board, int slot,
struct nubus_dir dir;
struct nubus_dirent ent;

+ pr_debug(" Board resource 0x%02x:\n", parent->type);
nubus_get_subdir(parent, &dir);
- pr_debug("%s: parent is 0x%p, dir is 0x%p\n",
- __func__, parent->base, dir.base);

while (nubus_readdir(&dir, &ent) != -1) {
switch (ent.type) {
@@ -628,8 +611,8 @@ static int __init nubus_get_board_resource(struct nubus_board *board, int slot,
useful except insofar as it tells us that
we really are looking at a board resource. */
nubus_get_rsrc_mem(nbtdata, &ent, 8);
- pr_info(" type: [cat 0x%x type 0x%x sw 0x%x hw 0x%x]\n",
- nbtdata[0], nbtdata[1], nbtdata[2], nbtdata[3]);
+ pr_debug(" type: [cat 0x%x type 0x%x sw 0x%x hw 0x%x]\n",
+ nbtdata[0], nbtdata[1], nbtdata[2], nbtdata[3]);
if (nbtdata[0] != 1 || nbtdata[1] != 0 ||
nbtdata[2] != 0 || nbtdata[3] != 0)
pr_err("this sResource is not a board resource!\n");
@@ -638,28 +621,28 @@ static int __init nubus_get_board_resource(struct nubus_board *board, int slot,
case NUBUS_RESID_NAME:
nubus_get_rsrc_str(board->name, &ent,
sizeof(board->name));
- pr_info(" name: %s\n", board->name);
+ pr_debug(" name: %s\n", board->name);
break;
case NUBUS_RESID_ICON:
nubus_get_icon(board, &ent);
break;
case NUBUS_RESID_BOARDID:
- pr_info(" board id: 0x%x\n", ent.data);
+ pr_debug(" board id: 0x%x\n", ent.data);
break;
case NUBUS_RESID_PRIMARYINIT:
- pr_info(" primary init offset: 0x%06x\n", ent.data);
+ pr_debug(" primary init offset: 0x%06x\n", ent.data);
break;
case NUBUS_RESID_VENDORINFO:
nubus_get_vendorinfo(board, &ent);
break;
case NUBUS_RESID_FLAGS:
- pr_info(" flags: 0x%06x\n", ent.data);
+ pr_debug(" flags: 0x%06x\n", ent.data);
break;
case NUBUS_RESID_HWDEVID:
- pr_info(" hwdevid: 0x%06x\n", ent.data);
+ pr_debug(" hwdevid: 0x%06x\n", ent.data);
break;
case NUBUS_RESID_SECONDINIT:
- pr_info(" secondary init offset: 0x%06x\n", ent.data);
+ pr_debug(" secondary init offset: 0x%06x\n", ent.data);
break;
/* WTF isn't this in the functional resources? */
case NUBUS_RESID_VIDNAMES:
@@ -667,11 +650,11 @@ static int __init nubus_get_board_resource(struct nubus_board *board, int slot,
break;
/* Same goes for this */
case NUBUS_RESID_VIDMODES:
- pr_info(" video mode parameter directory offset: 0x%06x\n",
+ pr_debug(" video mode parameter directory offset: 0x%06x\n",
ent.data);
break;
default:
- pr_info(" unknown resource %02X, data 0x%06x\n",
+ pr_debug(" unknown resource 0x%02x, data 0x%06x\n",
ent.type, ent.data);
}
}
@@ -699,14 +682,14 @@ static struct nubus_board * __init nubus_add_board(int slot, int bytelanes)

/* Dump the format block for debugging purposes */
pr_debug("Slot %X, format block at 0x%p:\n", slot, rp);
+ pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
+ pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
+ pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
pr_debug("%02lx\n", nubus_get_rom(&rp, 1, bytelanes));
pr_debug("%02lx\n", nubus_get_rom(&rp, 1, bytelanes));
pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
pr_debug("%02lx\n", nubus_get_rom(&rp, 1, bytelanes));
pr_debug("%02lx\n", nubus_get_rom(&rp, 1, bytelanes));
- pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
- pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
- pr_debug("%08lx\n", nubus_get_rom(&rp, 4, bytelanes));
rp = board->fblock;

board->slot = slot;
@@ -746,7 +729,7 @@ static struct nubus_board * __init nubus_add_board(int slot, int bytelanes)
nubus_get_root_dir(board, &dir);

/* We're ready to rock */
- pr_info("Slot %X:\n", slot);
+ pr_debug("Slot %X:\n", slot);

/* Each slot should have one board resource and any number of
functional resources. So we'll fill in some fields in the
@@ -758,7 +741,6 @@ static struct nubus_board * __init nubus_add_board(int slot, int bytelanes)
pr_err("Board resource not found!\n");
return NULL;
} else {
- pr_info(" Board resource:\n");
nubus_get_board_resource(board, slot, &ent);
}

@@ -830,6 +812,7 @@ static void __init nubus_scan_bus(void)
{
int slot;

+ pr_info("NuBus: Scanning NuBus slots.\n");
for (slot = 9; slot < 15; slot++) {
nubus_probe_slot(slot);
}
@@ -840,7 +823,6 @@ static int __init nubus_init(void)
if (!MACH_IS_MAC)
return 0;

- pr_info("NuBus: Scanning NuBus slots.\n");
nubus_devices = NULL;
nubus_boards = NULL;
nubus_scan_bus();
--
2.13.6