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authorChris Metcalf <cmetcalf@tilera.com>2010-08-06 10:37:02 -0400
committerChris Metcalf <cmetcalf@tilera.com>2010-08-06 10:37:02 -0400
commitab11b487402f97975f3ac1eeea09c82f4431481e (patch)
tree86337c5cbbd2b0c4bd07c0847a1dc7de3d898147 /drivers/char
parent1c689cbcf2c2b7a35cd237abddd9206bb1b6fee1 (diff)
parentfc1caf6eafb30ea185720e29f7f5eccca61ecd60 (diff)
Merge branch 'master' into for-linus
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/agp/efficeon-agp.c22
-rw-r--r--drivers/char/agp/intel-agp.c26
-rw-r--r--drivers/char/agp/intel-agp.h6
-rw-r--r--drivers/char/agp/intel-gtt.c96
-rw-r--r--drivers/char/bsr.c1
-rw-r--r--drivers/char/hvc_console.c12
-rw-r--r--drivers/char/hvsi.c4
-rw-r--r--drivers/char/hw_random/n2-drv.c6
-rw-r--r--drivers/char/keyboard.c6
-rw-r--r--drivers/char/random.c2
-rw-r--r--drivers/char/synclink_gt.c2
-rw-r--r--drivers/char/sysrq.c2
-rw-r--r--drivers/char/tpm/tpm_tis.c9
-rw-r--r--drivers/char/vt.c78
14 files changed, 220 insertions, 52 deletions
diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c
index aa109cbe0e6..d607f53d8af 100644
--- a/drivers/char/agp/efficeon-agp.c
+++ b/drivers/char/agp/efficeon-agp.c
@@ -372,6 +372,17 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
bridge->capndx = cap_ptr;
/*
+ * If the device has not been properly setup, the following will catch
+ * the problem and should stop the system from crashing.
+ * 20030610 - hamish@zot.org
+ */
+ if (pci_enable_device(pdev)) {
+ printk(KERN_ERR PFX "Unable to Enable PCI device\n");
+ agp_put_bridge(bridge);
+ return -ENODEV;
+ }
+
+ /*
* The following fixes the case where the BIOS has "forgotten" to
* provide an address range for the GART.
* 20030610 - hamish@zot.org
@@ -385,17 +396,6 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
}
}
- /*
- * If the device has not been properly setup, the following will catch
- * the problem and should stop the system from crashing.
- * 20030610 - hamish@zot.org
- */
- if (pci_enable_device(pdev)) {
- printk(KERN_ERR PFX "Unable to Enable PCI device\n");
- agp_put_bridge(bridge);
- return -ENODEV;
- }
-
/* Fill in the mode register */
if (cap_ptr) {
pci_read_config_dword(pdev,
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index d836a71bf06..ddf5def1b0d 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -816,9 +816,9 @@ static const struct intel_driver_description {
{ PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB, PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG,
"HD Graphics", NULL, &intel_i965_driver },
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_IG,
- "Sandybridge", NULL, &intel_i965_driver },
+ "Sandybridge", NULL, &intel_gen6_driver },
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB, PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_IG,
- "Sandybridge", NULL, &intel_i965_driver },
+ "Sandybridge", NULL, &intel_gen6_driver },
{ 0, 0, NULL, NULL, NULL }
};
@@ -908,6 +908,17 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
dev_info(&pdev->dev, "Intel %s Chipset\n", intel_agp_chipsets[i].name);
/*
+ * If the device has not been properly setup, the following will catch
+ * the problem and should stop the system from crashing.
+ * 20030610 - hamish@zot.org
+ */
+ if (pci_enable_device(pdev)) {
+ dev_err(&pdev->dev, "can't enable PCI device\n");
+ agp_put_bridge(bridge);
+ return -ENODEV;
+ }
+
+ /*
* The following fixes the case where the BIOS has "forgotten" to
* provide an address range for the GART.
* 20030610 - hamish@zot.org
@@ -921,17 +932,6 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
}
}
- /*
- * If the device has not been properly setup, the following will catch
- * the problem and should stop the system from crashing.
- * 20030610 - hamish@zot.org
- */
- if (pci_enable_device(pdev)) {
- dev_err(&pdev->dev, "can't enable PCI device\n");
- agp_put_bridge(bridge);
- return -ENODEV;
- }
-
/* Fill in the mode register */
if (cap_ptr) {
pci_read_config_dword(pdev,
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index 2547465d465..c05e3e51826 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -60,6 +60,12 @@
#define I810_PTE_LOCAL 0x00000002
#define I810_PTE_VALID 0x00000001
#define I830_PTE_SYSTEM_CACHED 0x00000006
+/* GT PTE cache control fields */
+#define GEN6_PTE_UNCACHED 0x00000002
+#define GEN6_PTE_LLC 0x00000004
+#define GEN6_PTE_LLC_MLC 0x00000006
+#define GEN6_PTE_GFDT 0x00000008
+
#define I810_SMRAM_MISCC 0x70
#define I810_GFX_MEM_WIN_SIZE 0x00010000
#define I810_GFX_MEM_WIN_32M 0x00010000
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9344216183a..d22ffb811bf 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -25,6 +25,10 @@
#define USE_PCI_DMA_API 1
#endif
+/* Max amount of stolen space, anything above will be returned to Linux */
+int intel_max_stolen = 32 * 1024 * 1024;
+EXPORT_SYMBOL(intel_max_stolen);
+
static const struct aper_size_info_fixed intel_i810_sizes[] =
{
{64, 16384, 4},
@@ -104,7 +108,7 @@ static int intel_agp_map_memory(struct agp_memory *mem)
DBG("try mapping %lu pages\n", (unsigned long)mem->page_count);
if (sg_alloc_table(&st, mem->page_count, GFP_KERNEL))
- return -ENOMEM;
+ goto err;
mem->sg_list = sg = st.sgl;
@@ -113,11 +117,14 @@ static int intel_agp_map_memory(struct agp_memory *mem)
mem->num_sg = pci_map_sg(intel_private.pcidev, mem->sg_list,
mem->page_count, PCI_DMA_BIDIRECTIONAL);
- if (unlikely(!mem->num_sg)) {
- intel_agp_free_sglist(mem);
- return -ENOMEM;
- }
+ if (unlikely(!mem->num_sg))
+ goto err;
+
return 0;
+
+err:
+ sg_free_table(&st);
+ return -ENOMEM;
}
static void intel_agp_unmap_memory(struct agp_memory *mem)
@@ -176,7 +183,7 @@ static void intel_agp_insert_sg_entries(struct agp_memory *mem,
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB)
{
- cache_bits = I830_PTE_SYSTEM_CACHED;
+ cache_bits = GEN6_PTE_LLC_MLC;
}
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
@@ -710,7 +717,12 @@ static void intel_i830_init_gtt_entries(void)
break;
}
}
- if (gtt_entries > 0) {
+ if (!local && gtt_entries > intel_max_stolen) {
+ dev_info(&agp_bridge->dev->dev,
+ "detected %dK stolen memory, trimming to %dK\n",
+ gtt_entries / KB(1), intel_max_stolen / KB(1));
+ gtt_entries = intel_max_stolen / KB(4);
+ } else if (gtt_entries > 0) {
dev_info(&agp_bridge->dev->dev, "detected %dK %s memory\n",
gtt_entries / KB(1), local ? "local" : "stolen");
gtt_entries /= KB(4);
@@ -797,6 +809,10 @@ static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
+ if (intel_private.gtt_entries == 0) {
+ iounmap(intel_private.registers);
+ return -ENOMEM;
+ }
agp_bridge->gatt_table = NULL;
@@ -1216,17 +1232,20 @@ static int intel_i915_get_gtt_size(void)
/* G33's GTT size defined in gmch_ctrl */
pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
- switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
- case G33_PGETBL_SIZE_1M:
+ switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+ case I830_GMCH_GMS_STOLEN_512:
+ size = 512;
+ break;
+ case I830_GMCH_GMS_STOLEN_1024:
size = 1024;
break;
- case G33_PGETBL_SIZE_2M:
- size = 2048;
+ case I830_GMCH_GMS_STOLEN_8192:
+ size = 8*1024;
break;
default:
dev_info(&agp_bridge->dev->dev,
"unknown page table size 0x%x, assuming 512KB\n",
- (gmch_ctrl & G33_PGETBL_SIZE_MASK));
+ (gmch_ctrl & I830_GMCH_GMS_MASK));
size = 512;
}
} else {
@@ -1279,6 +1298,11 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
+ if (intel_private.gtt_entries == 0) {
+ iounmap(intel_private.gtt);
+ iounmap(intel_private.registers);
+ return -ENOMEM;
+ }
agp_bridge->gatt_table = NULL;
@@ -1306,6 +1330,16 @@ static unsigned long intel_i965_mask_memory(struct agp_bridge_data *bridge,
return addr | bridge->driver->masks[type].mask;
}
+static unsigned long intel_gen6_mask_memory(struct agp_bridge_data *bridge,
+ dma_addr_t addr, int type)
+{
+ /* Shift high bits down */
+ addr |= (addr >> 28) & 0xff;
+
+ /* Type checking must be done elsewhere */
+ return addr | bridge->driver->masks[type].mask;
+}
+
static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
{
u16 snb_gmch_ctl;
@@ -1387,6 +1421,11 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
+ if (intel_private.gtt_entries == 0) {
+ iounmap(intel_private.gtt);
+ iounmap(intel_private.registers);
+ return -ENOMEM;
+ }
agp_bridge->gatt_table = NULL;
@@ -1514,6 +1553,39 @@ static const struct agp_bridge_driver intel_i965_driver = {
#endif
};
+static const struct agp_bridge_driver intel_gen6_driver = {
+ .owner = THIS_MODULE,
+ .aperture_sizes = intel_i830_sizes,
+ .size_type = FIXED_APER_SIZE,
+ .num_aperture_sizes = 4,
+ .needs_scratch_page = true,
+ .configure = intel_i9xx_configure,
+ .fetch_size = intel_i9xx_fetch_size,
+ .cleanup = intel_i915_cleanup,
+ .mask_memory = intel_gen6_mask_memory,
+ .masks = intel_i810_masks,
+ .agp_enable = intel_i810_agp_enable,
+ .cache_flush = global_cache_flush,
+ .create_gatt_table = intel_i965_create_gatt_table,
+ .free_gatt_table = intel_i830_free_gatt_table,
+ .insert_memory = intel_i915_insert_entries,
+ .remove_memory = intel_i915_remove_entries,
+ .alloc_by_type = intel_i830_alloc_by_type,
+ .free_by_type = intel_i810_free_by_type,
+ .agp_alloc_page = agp_generic_alloc_page,
+ .agp_alloc_pages = agp_generic_alloc_pages,
+ .agp_destroy_page = agp_generic_destroy_page,
+ .agp_destroy_pages = agp_generic_destroy_pages,
+ .agp_type_to_mask_type = intel_i830_type_to_mask_type,
+ .chipset_flush = intel_i915_chipset_flush,
+#ifdef USE_PCI_DMA_API
+ .agp_map_page = intel_agp_map_page,
+ .agp_unmap_page = intel_agp_unmap_page,
+ .agp_map_memory = intel_agp_map_memory,
+ .agp_unmap_memory = intel_agp_unmap_memory,
+#endif
+};
+
static const struct agp_bridge_driver intel_g33_driver = {
.owner = THIS_MODULE,
.aperture_sizes = intel_i830_sizes,
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 89d871ef8c2..91917133ae0 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -23,6 +23,7 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
+#include <linux/fs.h>
#include <linux/module.h>
#include <linux/cdev.h>
#include <linux/list.h>
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 35cca4c7fb1..fa27d1676ee 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -194,7 +194,7 @@ static int __init hvc_console_setup(struct console *co, char *options)
return 0;
}
-static struct console hvc_con_driver = {
+static struct console hvc_console = {
.name = "hvc",
.write = hvc_console_print,
.device = hvc_console_device,
@@ -220,7 +220,7 @@ static struct console hvc_con_driver = {
*/
static int __init hvc_console_init(void)
{
- register_console(&hvc_con_driver);
+ register_console(&hvc_console);
return 0;
}
console_initcall(hvc_console_init);
@@ -276,8 +276,8 @@ int hvc_instantiate(uint32_t vtermno, int index, const struct hv_ops *ops)
* now (setup won't fail at this point). It's ok to just
* call register again if previously .setup failed.
*/
- if (index == hvc_con_driver.index)
- register_console(&hvc_con_driver);
+ if (index == hvc_console.index)
+ register_console(&hvc_console);
return 0;
}
@@ -641,7 +641,7 @@ int hvc_poll(struct hvc_struct *hp)
}
for (i = 0; i < n; ++i) {
#ifdef CONFIG_MAGIC_SYSRQ
- if (hp->index == hvc_con_driver.index) {
+ if (hp->index == hvc_console.index) {
/* Handle the SysRq Hack */
/* XXX should support a sequence */
if (buf[i] == '\x0f') { /* ^O */
@@ -909,7 +909,7 @@ static void __exit hvc_exit(void)
tty_unregister_driver(hvc_driver);
/* return tty_struct instances allocated in hvc_init(). */
put_tty_driver(hvc_driver);
- unregister_console(&hvc_con_driver);
+ unregister_console(&hvc_console);
}
}
module_exit(hvc_exit);
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index d4b14ff1c4c..1f4b6de65a2 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1255,7 +1255,7 @@ static int __init hvsi_console_setup(struct console *console, char *options)
return 0;
}
-static struct console hvsi_con_driver = {
+static struct console hvsi_console = {
.name = "hvsi",
.write = hvsi_console_print,
.device = hvsi_console_device,
@@ -1308,7 +1308,7 @@ static int __init hvsi_console_init(void)
}
if (hvsi_count)
- register_console(&hvsi_con_driver);
+ register_console(&hvsi_console);
return 0;
}
console_initcall(hvsi_console_init);
diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index 0f9cbf1aaf1..7a4f080f835 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -387,7 +387,7 @@ static int n2rng_init_control(struct n2rng *np)
static int n2rng_data_read(struct hwrng *rng, u32 *data)
{
- struct n2rng *np = (struct n2rng *) rng->priv;
+ struct n2rng *np = rng->priv;
unsigned long ra = __pa(&np->test_data);
int len;
@@ -762,12 +762,12 @@ static struct of_platform_driver n2rng_driver = {
static int __init n2rng_init(void)
{
- return of_register_driver(&n2rng_driver, &of_bus_type);
+ return of_register_platform_driver(&n2rng_driver);
}
static void __exit n2rng_exit(void)
{
- of_unregister_driver(&n2rng_driver);
+ of_unregister_platform_driver(&n2rng_driver);
}
module_init(n2rng_init);
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 54109dc9240..25be2102a60 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -1315,10 +1315,14 @@ static bool kbd_match(struct input_handler *handler, struct input_dev *dev)
if (test_bit(EV_SND, dev->evbit))
return true;
- if (test_bit(EV_KEY, dev->evbit))
+ if (test_bit(EV_KEY, dev->evbit)) {
for (i = KEY_RESERVED; i < BTN_MISC; i++)
if (test_bit(i, dev->keybit))
return true;
+ for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++)
+ if (test_bit(i, dev->keybit))
+ return true;
+ }
return false;
}
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 8d85587b6d4..caef35a4689 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -407,8 +407,8 @@ struct entropy_store {
struct poolinfo *poolinfo;
__u32 *pool;
const char *name;
- int limit;
struct entropy_store *pull;
+ int limit;
/* read-write data: */
spinlock_t lock;
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 4561ce2fba6..334cf5c8c8b 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -4845,7 +4845,7 @@ static int register_test(struct slgt_info *info)
{
static unsigned short patterns[] =
{0x0000, 0xffff, 0xaaaa, 0x5555, 0x6969, 0x9696};
- static unsigned int count = sizeof(patterns)/sizeof(patterns[0]);
+ static unsigned int count = ARRAY_SIZE(patterns);
unsigned int i;
int rc = 0;
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d64e3acb00..878ac0c2cc6 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -493,7 +493,7 @@ static void __sysrq_put_key_op(int key, struct sysrq_key_op *op_p)
sysrq_key_table[i] = op_p;
}
-static void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
+void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
{
struct sysrq_key_op *op_p;
int orig_log_level;
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 24314a9cffe..1030f842013 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -623,7 +623,14 @@ static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg)
static int tpm_tis_pnp_resume(struct pnp_dev *dev)
{
- return tpm_pm_resume(&dev->dev);
+ struct tpm_chip *chip = pnp_get_drvdata(dev);
+ int ret;
+
+ ret = tpm_pm_resume(&dev->dev);
+ if (!ret)
+ tpm_continue_selftest(chip);
+
+ return ret;
}
static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 7cdb6ee569c..4a9eb3044e5 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -104,6 +104,7 @@
#include <linux/io.h>
#include <asm/system.h>
#include <linux/uaccess.h>
+#include <linux/kdb.h>
#define MAX_NR_CON_DRIVER 16
@@ -187,10 +188,15 @@ static DECLARE_WORK(console_work, console_callback);
* fg_console is the current virtual console,
* last_console is the last used one,
* want_console is the console we want to switch to,
+ * saved_* variants are for save/restore around kernel debugger enter/leave
*/
int fg_console;
int last_console;
int want_console = -1;
+int saved_fg_console;
+int saved_last_console;
+int saved_want_console;
+int saved_vc_mode;
/*
* For each existing display, we have a pointer to console currently visible
@@ -3414,6 +3420,78 @@ int con_is_bound(const struct consw *csw)
EXPORT_SYMBOL(con_is_bound);
/**
+ * con_debug_enter - prepare the console for the kernel debugger
+ * @sw: console driver
+ *
+ * Called when the console is taken over by the kernel debugger, this
+ * function needs to save the current console state, then put the console
+ * into a state suitable for the kernel debugger.
+ *
+ * RETURNS:
+ * Zero on success, nonzero if a failure occurred when trying to prepare
+ * the console for the debugger.
+ */
+int con_debug_enter(struct vc_data *vc)
+{
+ int ret = 0;
+
+ saved_fg_console = fg_console;
+ saved_last_console = last_console;
+ saved_want_console = want_console;
+ saved_vc_mode = vc->vc_mode;
+ vc->vc_mode = KD_TEXT;
+ console_blanked = 0;
+ if (vc->vc_sw->con_debug_enter)
+ ret = vc->vc_sw->con_debug_enter(vc);
+#ifdef CONFIG_KGDB_KDB
+ /* Set the initial LINES variable if it is not already set */
+ if (vc->vc_rows < 999) {
+ int linecount;
+ char lns[4];
+ const char *setargs[3] = {
+ "set",
+ "LINES",
+ lns,
+ };
+ if (kdbgetintenv(setargs[0], &linecount)) {
+ snprintf(lns, 4, "%i", vc->vc_rows);
+ kdb_set(2, setargs);
+ }
+ }
+#endif /* CONFIG_KGDB_KDB */
+ return ret;
+}
+EXPORT_SYMBOL_GPL(con_debug_enter);
+
+/**
+ * con_debug_leave - restore console state
+ * @sw: console driver
+ *
+ * Restore the console state to what it was before the kernel debugger
+ * was invoked.
+ *
+ * RETURNS:
+ * Zero on success, nonzero if a failure occurred when trying to restore
+ * the console.
+ */
+int con_debug_leave(void)
+{
+ struct vc_data *vc;
+ int ret = 0;
+
+ fg_console = saved_fg_console;
+ last_console = saved_last_console;
+ want_console = saved_want_console;
+ vc_cons[fg_console].d->vc_mode = saved_vc_mode;
+
+ vc = vc_cons[fg_console].d;
+ if (vc->vc_sw->con_debug_leave)
+ ret = vc->vc_sw->con_debug_leave(vc);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(con_debug_leave);
+
+/**
* register_con_driver - register console driver to console layer
* @csw: console driver
* @first: the first console to take over, minimum value is 0