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-rw-r--r--drivers/char/Kconfig2
-rw-r--r--drivers/char/agp/agp.h6
-rw-r--r--drivers/char/agp/intel-agp.c579
-rw-r--r--drivers/char/cyclades.c1
-rw-r--r--drivers/char/drm/Kconfig2
-rw-r--r--drivers/char/drm/drm_drawable.c41
-rw-r--r--drivers/char/drm/drm_pciids.h7
-rw-r--r--drivers/char/drm/i915_irq.c2
-rw-r--r--drivers/char/n_tty.c1
-rw-r--r--drivers/char/random.c67
-rw-r--r--drivers/char/stallion.c81
-rw-r--r--drivers/char/tty_io.c3
-rw-r--r--drivers/char/watchdog/Kconfig7
-rw-r--r--drivers/char/watchdog/Makefile1
-rw-r--r--drivers/char/watchdog/ixp2000_wdt.c2
-rw-r--r--drivers/char/watchdog/ks8695_wdt.c308
16 files changed, 714 insertions, 396 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index abcafac64738..ef683ebd367c 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -815,7 +815,7 @@ config SGI_IP27_RTC
config GEN_RTC
tristate "Generic /dev/rtc emulation"
- depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV && !S390
+ depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV && !S390 && !SUPERH
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/agp/agp.h b/drivers/char/agp/agp.h
index fdbca25a3948..35ab1a9f8e8b 100644
--- a/drivers/char/agp/agp.h
+++ b/drivers/char/agp/agp.h
@@ -176,7 +176,7 @@ struct agp_bridge_data {
#define I830_GMCH_MEM_MASK 0x1
#define I830_GMCH_MEM_64M 0x1
#define I830_GMCH_MEM_128M 0
-#define I830_GMCH_GMS_MASK 0x70
+#define I830_GMCH_GMS_MASK 0xF0
#define I830_GMCH_GMS_DISABLED 0x00
#define I830_GMCH_GMS_LOCAL 0x10
#define I830_GMCH_GMS_STOLEN_512 0x20
@@ -231,6 +231,10 @@ struct agp_bridge_data {
#define I965_PGETBL_SIZE_512KB (0 << 1)
#define I965_PGETBL_SIZE_256KB (1 << 1)
#define I965_PGETBL_SIZE_128KB (2 << 1)
+#define G33_PGETBL_SIZE_MASK (3 << 8)
+#define G33_PGETBL_SIZE_1M (1 << 8)
+#define G33_PGETBL_SIZE_2M (2 << 8)
+
#define I810_DRAM_CTL 0x3000
#define I810_DRAM_ROW_0 0x00000001
#define I810_DRAM_ROW_0_SDRAM 0x00000001
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 9c69f2e761f5..0439ee951a11 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -20,6 +20,14 @@
#define PCI_DEVICE_ID_INTEL_82965G_IG 0x29A2
#define PCI_DEVICE_ID_INTEL_82965GM_HB 0x2A00
#define PCI_DEVICE_ID_INTEL_82965GM_IG 0x2A02
+#define PCI_DEVICE_ID_INTEL_82965GME_IG 0x2A12
+#define PCI_DEVICE_ID_INTEL_82945GME_IG 0x27AE
+#define PCI_DEVICE_ID_INTEL_G33_HB 0x29C0
+#define PCI_DEVICE_ID_INTEL_G33_IG 0x29C2
+#define PCI_DEVICE_ID_INTEL_Q35_HB 0x29B0
+#define PCI_DEVICE_ID_INTEL_Q35_IG 0x29B2
+#define PCI_DEVICE_ID_INTEL_Q33_HB 0x29D0
+#define PCI_DEVICE_ID_INTEL_Q33_IG 0x29D2
#define IS_I965 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82946GZ_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_1_HB || \
@@ -27,6 +35,9 @@
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965GM_HB)
+#define IS_G33 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G33_HB || \
+ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q35_HB || \
+ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q33_HB)
extern int agp_memory_reserved;
@@ -53,6 +64,8 @@ extern int agp_memory_reserved;
#define I915_PTEADDR 0x1C
#define I915_GMCH_GMS_STOLEN_48M (0x6 << 4)
#define I915_GMCH_GMS_STOLEN_64M (0x7 << 4)
+#define G33_GMCH_GMS_STOLEN_128M (0x8 << 4)
+#define G33_GMCH_GMS_STOLEN_256M (0x9 << 4)
/* Intel 965G registers */
#define I965_MSAC 0x62
@@ -86,11 +99,18 @@ static struct gatt_mask intel_i810_masks[] =
.type = INTEL_AGP_CACHED_MEMORY}
};
-static struct _intel_i810_private {
- struct pci_dev *i810_dev; /* device one */
- volatile u8 __iomem *registers;
+static struct _intel_private {
+ struct pci_dev *pcidev; /* device one */
+ u8 __iomem *registers;
+ u32 __iomem *gtt; /* I915G */
int num_dcache_entries;
-} intel_i810_private;
+ /* gtt_entries is the number of gtt entries that are already mapped
+ * to stolen memory. Stolen memory is larger than the memory mapped
+ * through gtt_entries, as it includes some reserved space for the BIOS
+ * popup and for the GTT.
+ */
+ int gtt_entries; /* i830+ */
+} intel_private;
static int intel_i810_fetch_size(void)
{
@@ -127,32 +147,32 @@ static int intel_i810_configure(void)
current_size = A_SIZE_FIX(agp_bridge->current_size);
- if (!intel_i810_private.registers) {
- pci_read_config_dword(intel_i810_private.i810_dev, I810_MMADDR, &temp);
+ if (!intel_private.registers) {
+ pci_read_config_dword(intel_private.pcidev, I810_MMADDR, &temp);
temp &= 0xfff80000;
- intel_i810_private.registers = ioremap(temp, 128 * 4096);
- if (!intel_i810_private.registers) {
+ intel_private.registers = ioremap(temp, 128 * 4096);
+ if (!intel_private.registers) {
printk(KERN_ERR PFX "Unable to remap memory.\n");
return -ENOMEM;
}
}
- if ((readl(intel_i810_private.registers+I810_DRAM_CTL)
+ if ((readl(intel_private.registers+I810_DRAM_CTL)
& I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
/* This will need to be dynamically assigned */
printk(KERN_INFO PFX "detected 4MB dedicated video ram.\n");
- intel_i810_private.num_dcache_entries = 1024;
+ intel_private.num_dcache_entries = 1024;
}
- pci_read_config_dword(intel_i810_private.i810_dev, I810_GMADDR, &temp);
+ pci_read_config_dword(intel_private.pcidev, I810_GMADDR, &temp);
agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- writel(agp_bridge->gatt_bus_addr | I810_PGETBL_ENABLED, intel_i810_private.registers+I810_PGETBL_CTL);
- readl(intel_i810_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
+ writel(agp_bridge->gatt_bus_addr | I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL);
+ readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
if (agp_bridge->driver->needs_scratch_page) {
for (i = 0; i < current_size->num_entries; i++) {
- writel(agp_bridge->scratch_page, intel_i810_private.registers+I810_PTE_BASE+(i*4));
- readl(intel_i810_private.registers+I810_PTE_BASE+(i*4)); /* PCI posting. */
+ writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
+ readl(intel_private.registers+I810_PTE_BASE+(i*4)); /* PCI posting. */
}
}
global_cache_flush();
@@ -161,9 +181,9 @@ static int intel_i810_configure(void)
static void intel_i810_cleanup(void)
{
- writel(0, intel_i810_private.registers+I810_PGETBL_CTL);
- readl(intel_i810_private.registers); /* PCI Posting. */
- iounmap(intel_i810_private.registers);
+ writel(0, intel_private.registers+I810_PGETBL_CTL);
+ readl(intel_private.registers); /* PCI Posting. */
+ iounmap(intel_private.registers);
}
static void intel_i810_tlbflush(struct agp_memory *mem)
@@ -261,9 +281,9 @@ static int intel_i810_insert_entries(struct agp_memory *mem, off_t pg_start,
global_cache_flush();
for (i = pg_start; i < (pg_start + mem->page_count); i++) {
writel((i*4096)|I810_PTE_LOCAL|I810_PTE_VALID,
- intel_i810_private.registers+I810_PTE_BASE+(i*4));
+ intel_private.registers+I810_PTE_BASE+(i*4));
}
- readl(intel_i810_private.registers+I810_PTE_BASE+((i-1)*4));
+ readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
break;
case AGP_PHYS_MEMORY:
case AGP_NORMAL_MEMORY:
@@ -273,9 +293,9 @@ static int intel_i810_insert_entries(struct agp_memory *mem, off_t pg_start,
writel(agp_bridge->driver->mask_memory(agp_bridge,
mem->memory[i],
mask_type),
- intel_i810_private.registers+I810_PTE_BASE+(j*4));
+ intel_private.registers+I810_PTE_BASE+(j*4));
}
- readl(intel_i810_private.registers+I810_PTE_BASE+((j-1)*4));
+ readl(intel_private.registers+I810_PTE_BASE+((j-1)*4));
break;
default:
goto out_err;
@@ -298,9 +318,9 @@ static int intel_i810_remove_entries(struct agp_memory *mem, off_t pg_start,
return 0;
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- writel(agp_bridge->scratch_page, intel_i810_private.registers+I810_PTE_BASE+(i*4));
+ writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
}
- readl(intel_i810_private.registers+I810_PTE_BASE+((i-1)*4));
+ readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
agp_bridge->driver->tlb_flush(mem);
return 0;
@@ -354,7 +374,7 @@ static struct agp_memory *intel_i810_alloc_by_type(size_t pg_count, int type)
struct agp_memory *new;
if (type == AGP_DCACHE_MEMORY) {
- if (pg_count != intel_i810_private.num_dcache_entries)
+ if (pg_count != intel_private.num_dcache_entries)
return NULL;
new = agp_create_memory(1);
@@ -404,18 +424,6 @@ static struct aper_size_info_fixed intel_i830_sizes[] =
{512, 131072, 7},
};
-static struct _intel_i830_private {
- struct pci_dev *i830_dev; /* device one */
- volatile u8 __iomem *registers;
- volatile u32 __iomem *gtt; /* I915G */
- /* gtt_entries is the number of gtt entries that are already mapped
- * to stolen memory. Stolen memory is larger than the memory mapped
- * through gtt_entries, as it includes some reserved space for the BIOS
- * popup and for the GTT.
- */
- int gtt_entries;
-} intel_i830_private;
-
static void intel_i830_init_gtt_entries(void)
{
u16 gmch_ctrl;
@@ -429,7 +437,7 @@ static void intel_i830_init_gtt_entries(void)
if (IS_I965) {
u32 pgetbl_ctl;
- pgetbl_ctl = readl(intel_i830_private.registers+I810_PGETBL_CTL);
+ pgetbl_ctl = readl(intel_private.registers+I810_PGETBL_CTL);
/* The 965 has a field telling us the size of the GTT,
* which may be larger than what is necessary to map the
@@ -451,6 +459,22 @@ static void intel_i830_init_gtt_entries(void)
size = 512;
}
size += 4; /* add in BIOS popup space */
+ } else if (IS_G33) {
+ /* G33's GTT size defined in gmch_ctrl */
+ switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
+ case G33_PGETBL_SIZE_1M:
+ size = 1024;
+ break;
+ case G33_PGETBL_SIZE_2M:
+ size = 2048;
+ break;
+ default:
+ printk(KERN_INFO PFX "Unknown page table size 0x%x, "
+ "assuming 512KB\n",
+ (gmch_ctrl & G33_PGETBL_SIZE_MASK));
+ size = 512;
+ }
+ size += 4;
} else {
/* On previous hardware, the GTT size was just what was
* required to map the aperture.
@@ -471,7 +495,7 @@ static void intel_i830_init_gtt_entries(void)
gtt_entries = MB(8) - KB(size);
break;
case I830_GMCH_GMS_LOCAL:
- rdct = readb(intel_i830_private.registers+I830_RDRAM_CHANNEL_TYPE);
+ rdct = readb(intel_private.registers+I830_RDRAM_CHANNEL_TYPE);
gtt_entries = (I830_RDRAM_ND(rdct) + 1) *
MB(ddt[I830_RDRAM_DDT(rdct)]);
local = 1;
@@ -502,7 +526,8 @@ static void intel_i830_init_gtt_entries(void)
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
- agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || IS_I965 )
+ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB ||
+ IS_I965 || IS_G33)
gtt_entries = MB(48) - KB(size);
else
gtt_entries = 0;
@@ -512,10 +537,24 @@ static void intel_i830_init_gtt_entries(void)
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
- agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || IS_I965)
+ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB ||
+ IS_I965 || IS_G33)
gtt_entries = MB(64) - KB(size);
else
gtt_entries = 0;
+ break;
+ case G33_GMCH_GMS_STOLEN_128M:
+ if (IS_G33)
+ gtt_entries = MB(128) - KB(size);
+ else
+ gtt_entries = 0;
+ break;
+ case G33_GMCH_GMS_STOLEN_256M:
+ if (IS_G33)
+ gtt_entries = MB(256) - KB(size);
+ else
+ gtt_entries = 0;
+ break;
default:
gtt_entries = 0;
break;
@@ -529,7 +568,7 @@ static void intel_i830_init_gtt_entries(void)
"No pre-allocated video memory detected.\n");
gtt_entries /= KB(4);
- intel_i830_private.gtt_entries = gtt_entries;
+ intel_private.gtt_entries = gtt_entries;
}
/* The intel i830 automatically initializes the agp aperture during POST.
@@ -547,14 +586,14 @@ static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
num_entries = size->num_entries;
agp_bridge->gatt_table_real = NULL;
- pci_read_config_dword(intel_i830_private.i830_dev,I810_MMADDR,&temp);
+ pci_read_config_dword(intel_private.pcidev,I810_MMADDR,&temp);
temp &= 0xfff80000;
- intel_i830_private.registers = ioremap(temp,128 * 4096);
- if (!intel_i830_private.registers)
+ intel_private.registers = ioremap(temp,128 * 4096);
+ if (!intel_private.registers)
return -ENOMEM;
- temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000;
+ temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ?? */
/* we have to call this as early as possible after the MMIO base address is known */
@@ -614,20 +653,20 @@ static int intel_i830_configure(void)
current_size = A_SIZE_FIX(agp_bridge->current_size);
- pci_read_config_dword(intel_i830_private.i830_dev,I810_GMADDR,&temp);
+ pci_read_config_dword(intel_private.pcidev,I810_GMADDR,&temp);
agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
pci_read_config_word(agp_bridge->dev,I830_GMCH_CTRL,&gmch_ctrl);
gmch_ctrl |= I830_GMCH_ENABLED;
pci_write_config_word(agp_bridge->dev,I830_GMCH_CTRL,gmch_ctrl);
- writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_i830_private.registers+I810_PGETBL_CTL);
- readl(intel_i830_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
+ writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL);
+ readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
if (agp_bridge->driver->needs_scratch_page) {
- for (i = intel_i830_private.gtt_entries; i < current_size->num_entries; i++) {
- writel(agp_bridge->scratch_page, intel_i830_private.registers+I810_PTE_BASE+(i*4));
- readl(intel_i830_private.registers+I810_PTE_BASE+(i*4)); /* PCI Posting. */
+ for (i = intel_private.gtt_entries; i < current_size->num_entries; i++) {
+ writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
+ readl(intel_private.registers+I810_PTE_BASE+(i*4)); /* PCI Posting. */
}
}
@@ -637,7 +676,7 @@ static int intel_i830_configure(void)
static void intel_i830_cleanup(void)
{
- iounmap(intel_i830_private.registers);
+ iounmap(intel_private.registers);
}
static int intel_i830_insert_entries(struct agp_memory *mem,off_t pg_start, int type)
@@ -653,9 +692,9 @@ static int intel_i830_insert_entries(struct agp_memory *mem,off_t pg_start, int
temp = agp_bridge->current_size;
num_entries = A_SIZE_FIX(temp)->num_entries;
- if (pg_start < intel_i830_private.gtt_entries) {
- printk (KERN_DEBUG PFX "pg_start == 0x%.8lx,intel_i830_private.gtt_entries == 0x%.8x\n",
- pg_start,intel_i830_private.gtt_entries);
+ if (pg_start < intel_private.gtt_entries) {
+ printk (KERN_DEBUG PFX "pg_start == 0x%.8lx,intel_private.gtt_entries == 0x%.8x\n",
+ pg_start,intel_private.gtt_entries);
printk (KERN_INFO PFX "Trying to insert into local/stolen memory\n");
goto out_err;
@@ -683,9 +722,9 @@ static int intel_i830_insert_entries(struct agp_memory *mem,off_t pg_start, int
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
writel(agp_bridge->driver->mask_memory(agp_bridge,
mem->memory[i], mask_type),
- intel_i830_private.registers+I810_PTE_BASE+(j*4));
+ intel_private.registers+I810_PTE_BASE+(j*4));
}
- readl(intel_i830_private.registers+I810_PTE_BASE+((j-1)*4));
+ readl(intel_private.registers+I810_PTE_BASE+((j-1)*4));
agp_bridge->driver->tlb_flush(mem);
out:
@@ -703,15 +742,15 @@ static int intel_i830_remove_entries(struct agp_memory *mem,off_t pg_start,
if (mem->page_count == 0)
return 0;
- if (pg_start < intel_i830_private.gtt_entries) {
+ if (pg_start < intel_private.gtt_entries) {
printk (KERN_INFO PFX "Trying to disable local/stolen memory\n");
return -EINVAL;
}
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- writel(agp_bridge->scratch_page, intel_i830_private.registers+I810_PTE_BASE+(i*4));
+ writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
}
- readl(intel_i830_private.registers+I810_PTE_BASE+((i-1)*4));
+ readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
agp_bridge->driver->tlb_flush(mem);
return 0;
@@ -734,7 +773,7 @@ static int intel_i915_configure(void)
current_size = A_SIZE_FIX(agp_bridge->current_size);
- pci_read_config_dword(intel_i830_private.i830_dev, I915_GMADDR, &temp);
+ pci_read_config_dword(intel_private.pcidev, I915_GMADDR, &temp);
agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
@@ -742,13 +781,13 @@ static int intel_i915_configure(void)
gmch_ctrl |= I830_GMCH_ENABLED;
pci_write_config_word(agp_bridge->dev,I830_GMCH_CTRL,gmch_ctrl);
- writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_i830_private.registers+I810_PGETBL_CTL);
- readl(intel_i830_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
+ writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL);
+ readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
if (agp_bridge->driver->needs_scratch_page) {
- for (i = intel_i830_private.gtt_entries; i < current_size->num_entries; i++) {
- writel(agp_bridge->scratch_page, intel_i830_private.gtt+i);
- readl(intel_i830_private.gtt+i); /* PCI Posting. */
+ for (i = intel_private.gtt_entries; i < current_size->num_entries; i++) {
+ writel(agp_bridge->scratch_page, intel_private.gtt+i);
+ readl(intel_private.gtt+i); /* PCI Posting. */
}
}
@@ -758,8 +797,8 @@ static int intel_i915_configure(void)
static void intel_i915_cleanup(void)
{
- iounmap(intel_i830_private.gtt);
- iounmap(intel_i830_private.registers);
+ iounmap(intel_private.gtt);
+ iounmap(intel_private.registers);
}
static int intel_i915_insert_entries(struct agp_memory *mem,off_t pg_start,
@@ -776,9 +815,9 @@ static int intel_i915_insert_entries(struct agp_memory *mem,off_t pg_start,
temp = agp_bridge->current_size;
num_entries = A_SIZE_FIX(temp)->num_entries;
- if (pg_start < intel_i830_private.gtt_entries) {
- printk (KERN_DEBUG PFX "pg_start == 0x%.8lx,intel_i830_private.gtt_entries == 0x%.8x\n",
- pg_start,intel_i830_private.gtt_entries);
+ if (pg_start < intel_private.gtt_entries) {
+ printk (KERN_DEBUG PFX "pg_start == 0x%.8lx,intel_private.gtt_entries == 0x%.8x\n",
+ pg_start,intel_private.gtt_entries);
printk (KERN_INFO PFX "Trying to insert into local/stolen memory\n");
goto out_err;
@@ -805,10 +844,10 @@ static int intel_i915_insert_entries(struct agp_memory *mem,off_t pg_start,
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
writel(agp_bridge->driver->mask_memory(agp_bridge,
- mem->memory[i], mask_type), intel_i830_private.gtt+j);
+ mem->memory[i], mask_type), intel_private.gtt+j);
}
- readl(intel_i830_private.gtt+j-1);
+ readl(intel_private.gtt+j-1);
agp_bridge->driver->tlb_flush(mem);
out:
@@ -826,15 +865,15 @@ static int intel_i915_remove_entries(struct agp_memory *mem,off_t pg_start,
if (mem->page_count == 0)
return 0;
- if (pg_start < intel_i830_private.gtt_entries) {
+ if (pg_start < intel_private.gtt_entries) {
printk (KERN_INFO PFX "Trying to disable local/stolen memory\n");
return -EINVAL;
}
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- writel(agp_bridge->scratch_page, intel_i830_private.gtt+i);
+ writel(agp_bridge->scratch_page, intel_private.gtt+i);
}
- readl(intel_i830_private.gtt+i-1);
+ readl(intel_private.gtt+i-1);
agp_bridge->driver->tlb_flush(mem);
return 0;
@@ -850,7 +889,7 @@ static int intel_i9xx_fetch_size(void)
int aper_size; /* size in megabytes */
int i;
- aper_size = pci_resource_len(intel_i830_private.i830_dev, 2) / MB(1);
+ aper_size = pci_resource_len(intel_private.pcidev, 2) / MB(1);
for (i = 0; i < num_sizes; i++) {
if (aper_size == intel_i830_sizes[i].size) {
@@ -878,20 +917,20 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
num_entries = size->num_entries;
agp_bridge->gatt_table_real = NULL;
- pci_read_config_dword(intel_i830_private.i830_dev, I915_MMADDR, &temp);
- pci_read_config_dword(intel_i830_private.i830_dev, I915_PTEADDR,&temp2);
+ pci_read_config_dword(intel_private.pcidev, I915_MMADDR, &temp);
+ pci_read_config_dword(intel_private.pcidev, I915_PTEADDR,&temp2);
- intel_i830_private.gtt = ioremap(temp2, 256 * 1024);
- if (!intel_i830_private.gtt)
+ intel_private.gtt = ioremap(temp2, 256 * 1024);
+ if (!intel_private.gtt)
return -ENOMEM;
temp &= 0xfff80000;
- intel_i830_private.registers = ioremap(temp,128 * 4096);
- if (!intel_i830_private.registers)
+ intel_private.registers = ioremap(temp,128 * 4096);
+ if (!intel_private.registers)
return -ENOMEM;
- temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000;
+ temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */
/* we have to call this as early as possible after the MMIO base address is known */
@@ -938,20 +977,20 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
num_entries = size->num_entries;
agp_bridge->gatt_table_real = NULL;
- pci_read_config_dword(intel_i830_private.i830_dev, I915_MMADDR, &temp);
+ pci_read_config_dword(intel_private.pcidev, I915_MMADDR, &temp);
temp &= 0xfff00000;
- intel_i830_private.gtt = ioremap((temp + (512 * 1024)) , 512 * 1024);
+ intel_private.gtt = ioremap((temp + (512 * 1024)) , 512 * 1024);
- if (!intel_i830_private.gtt)
+ if (!intel_private.gtt)
return -ENOMEM;
- intel_i830_private.registers = ioremap(temp,128 * 4096);
- if (!intel_i830_private.registers)
+ intel_private.registers = ioremap(temp,128 * 4096);
+ if (!intel_private.registers)
return -ENOMEM;
- temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000;
+ temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */
/* we have to call this as early as possible after the MMIO base address is known */
@@ -1722,41 +1761,127 @@ static const struct agp_bridge_driver intel_7505_driver = {
.agp_type_to_mask_type = agp_generic_type_to_mask_type,
};
-static int find_i810(u16 device)
-{
- struct pci_dev *i810_dev;
-
- i810_dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
- if (!i810_dev)
- return 0;
- intel_i810_private.i810_dev = i810_dev;
- return 1;
-}
+static const struct agp_bridge_driver intel_g33_driver = {
+ .owner = THIS_MODULE,
+ .aperture_sizes = intel_i830_sizes,
+ .size_type = FIXED_APER_SIZE,
+ .num_aperture_sizes = 4,
+ .needs_scratch_page = TRUE,
+ .configure = intel_i915_configure,
+ .fetch_size = intel_i9xx_fetch_size,
+ .cleanup = intel_i915_cleanup,
+ .tlb_flush = intel_i810_tlbflush,
+ .mask_memory = intel_i965_mask_memory,
+ .masks = intel_i810_masks,
+ .agp_enable = intel_i810_agp_enable,
+ .cache_flush = global_cache_flush,
+ .create_gatt_table = intel_i915_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_destroy_page = agp_generic_destroy_page,
+ .agp_type_to_mask_type = intel_i830_type_to_mask_type,
+};
-static int find_i830(u16 device)
+static int find_gmch(u16 device)
{
- struct pci_dev *i830_dev;
+ struct pci_dev *gmch_device;
- i830_dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
- if (i830_dev && PCI_FUNC(i830_dev->devfn) != 0) {
- i830_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
- device, i830_dev);
+ gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
+ if (gmch_device && PCI_FUNC(gmch_device->devfn) != 0) {
+ gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL,
+ device, gmch_device);
}
- if (!i830_dev)
+ if (!gmch_device)
return 0;
- intel_i830_private.i830_dev = i830_dev;
+ intel_private.pcidev = gmch_device;
return 1;
}
+/* Table to describe Intel GMCH and AGP/PCIE GART drivers. At least one of
+ * driver and gmch_driver must be non-null, and find_gmch will determine
+ * which one should be used if a gmch_chip_id is present.
+ */
+static const struct intel_driver_description {
+ unsigned int chip_id;
+ unsigned int gmch_chip_id;
+ unsigned int multi_gmch_chip; /* if we have more gfx chip type on this HB. */
+ char *name;
+ const struct agp_bridge_driver *driver;
+ const struct agp_bridge_driver *gmch_driver;
+} intel_agp_chipsets[] = {
+ { PCI_DEVICE_ID_INTEL_82443LX_0, 0, 0, "440LX", &intel_generic_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82443BX_0, 0, 0, "440BX", &intel_generic_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82443GX_0, 0, 0, "440GX", &intel_generic_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82810_MC1, PCI_DEVICE_ID_INTEL_82810_IG1, 0, "i810",
+ NULL, &intel_810_driver },
+ { PCI_DEVICE_ID_INTEL_82810_MC3, PCI_DEVICE_ID_INTEL_82810_IG3, 0, "i810",
+ NULL, &intel_810_driver },
+ { PCI_DEVICE_ID_INTEL_82810E_MC, PCI_DEVICE_ID_INTEL_82810E_IG, 0, "i810",
+ NULL, &intel_810_driver },
+ { PCI_DEVICE_ID_INTEL_82815_MC, PCI_DEVICE_ID_INTEL_82815_CGC, 0, "i815",
+ &intel_815_driver, &intel_810_driver },
+ { PCI_DEVICE_ID_INTEL_82820_HB, 0, 0, "i820", &intel_820_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82820_UP_HB, 0, 0, "i820", &intel_820_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82830_HB, PCI_DEVICE_ID_INTEL_82830_CGC, 0, "830M",
+ &intel_830mp_driver, &intel_830_driver },
+ { PCI_DEVICE_ID_INTEL_82840_HB, 0, 0, "i840", &intel_840_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82845_HB, 0, 0, "845G", &intel_845_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82845G_HB, PCI_DEVICE_ID_INTEL_82845G_IG, 0, "830M",
+ &intel_845_driver, &intel_830_driver },
+ { PCI_DEVICE_ID_INTEL_82850_HB, 0, 0, "i850", &intel_850_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82855PM_HB, 0, 0, "855PM", &intel_845_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82855GM_HB, PCI_DEVICE_ID_INTEL_82855GM_IG, 0, "855GM",
+ &intel_845_driver, &intel_830_driver },
+ { PCI_DEVICE_ID_INTEL_82860_HB, 0, 0, "i860", &intel_860_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82865_HB, PCI_DEVICE_ID_INTEL_82865_IG, 0, "865",
+ &intel_845_driver, &intel_830_driver },
+ { PCI_DEVICE_ID_INTEL_82875_HB, 0, 0, "i875", &intel_845_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82915G_HB, PCI_DEVICE_ID_INTEL_82915G_IG, 0, "915G",
+ &intel_845_driver, &intel_915_driver },
+ { PCI_DEVICE_ID_INTEL_82915GM_HB, PCI_DEVICE_ID_INTEL_82915GM_IG, 0, "915GM",
+ &intel_845_driver, &intel_915_driver },
+ { PCI_DEVICE_ID_INTEL_82945G_HB, PCI_DEVICE_ID_INTEL_82945G_IG, 0, "945G",
+ &intel_845_driver, &intel_915_driver },
+ { PCI_DEVICE_ID_INTEL_82945GM_HB, PCI_DEVICE_ID_INTEL_82945GM_IG, 1, "945GM",
+ &intel_845_driver, &intel_915_driver },
+ { PCI_DEVICE_ID_INTEL_82945GM_HB, PCI_DEVICE_ID_INTEL_82945GME_IG, 0, "945GME",
+ &intel_845_driver, &intel_915_driver },
+ { PCI_DEVICE_ID_INTEL_82946GZ_HB, PCI_DEVICE_ID_INTEL_82946GZ_IG, 0, "946GZ",
+ &intel_845_driver, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_82965G_1_HB, PCI_DEVICE_ID_INTEL_82965G_1_IG, 0, "965G",
+ &intel_845_driver, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_82965Q_HB, PCI_DEVICE_ID_INTEL_82965Q_IG, 0, "965Q",
+ &intel_845_driver, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_82965G_HB, PCI_DEVICE_ID_INTEL_82965G_IG, 0, "965G",
+ &intel_845_driver, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GM_IG, 1, "965GM",
+ &intel_845_driver, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GME_IG, 0, "965GME/GLE",
+ &intel_845_driver, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_7505_0, 0, 0, "E7505", &intel_7505_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_7205_0, 0, 0, "E7205", &intel_7505_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_G33_HB, PCI_DEVICE_ID_INTEL_G33_IG, 0, "G33",
+ &intel_845_driver, &intel_g33_driver },
+ { PCI_DEVICE_ID_INTEL_Q35_HB, PCI_DEVICE_ID_INTEL_Q35_IG, 0, "Q35",
+ &intel_845_driver, &intel_g33_driver },
+ { PCI_DEVICE_ID_INTEL_Q33_HB, PCI_DEVICE_ID_INTEL_Q33_IG, 0, "Q33",
+ &intel_845_driver, &intel_g33_driver },
+ { 0, 0, 0, NULL, NULL, NULL }
+};
+
static int __devinit agp_intel_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct agp_bridge_data *bridge;
- char *name = "(unknown)";
u8 cap_ptr = 0;
struct resource *r;
+ int i;
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
@@ -1764,195 +1889,46 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
if (!bridge)
return -ENOMEM;
- switch (pdev->device) {
- case PCI_DEVICE_ID_INTEL_82443LX_0:
- bridge->driver = &intel_generic_driver;
- name = "440LX";
- break;
- case PCI_DEVICE_ID_INTEL_82443BX_0:
- bridge->driver = &intel_generic_driver;
- name = "440BX";
- break;
- case PCI_DEVICE_ID_INTEL_82443GX_0:
- bridge->driver = &intel_generic_driver;
- name = "440GX";
- break;
- case PCI_DEVICE_ID_INTEL_82810_MC1:
- name = "i810";
- if (!find_i810(PCI_DEVICE_ID_INTEL_82810_IG1))
- goto fail;
- bridge->driver = &intel_810_driver;
- break;
- case PCI_DEVICE_ID_INTEL_82810_MC3:
- name = "i810 DC100";
- if (!find_i810(PCI_DEVICE_ID_INTEL_82810_IG3))
- goto fail;
- bridge->driver = &intel_810_driver;
- break;
- case PCI_DEVICE_ID_INTEL_82810E_MC:
- name = "i810 E";
- if (!find_i810(PCI_DEVICE_ID_INTEL_82810E_IG))
- goto fail;
- bridge->driver = &intel_810_driver;
- break;
- case PCI_DEVICE_ID_INTEL_82815_MC:
- /*
- * The i815 can operate either as an i810 style
- * integrated device, or as an AGP4X motherboard.
- */
- if (find_i810(PCI_DEVICE_ID_INTEL_82815_CGC))
- bridge->driver = &intel_810_driver;
- else
- bridge->driver = &intel_815_driver;
- name = "i815";
- break;
- case PCI_DEVICE_ID_INTEL_82820_HB:
- case PCI_DEVICE_ID_INTEL_82820_UP_HB:
- bridge->driver = &intel_820_driver;
- name = "i820";
- break;
- case PCI_DEVICE_ID_INTEL_82830_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82830_CGC))
- bridge->driver = &intel_830_driver;
- else
- bridge->driver = &intel_830mp_driver;
- name = "830M";
- break;
- case PCI_DEVICE_ID_INTEL_82840_HB:
- bridge->driver = &intel_840_driver;
- name = "i840";
- break;
- case PCI_DEVICE_ID_INTEL_82845_HB:
- bridge->driver = &intel_845_driver;
- name = "i845";
- break;
- case PCI_DEVICE_ID_INTEL_82845G_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82845G_IG))
- bridge->driver = &intel_830_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "845G";
- break;
- case PCI_DEVICE_ID_INTEL_82850_HB:
- bridge->driver = &intel_850_driver;
- name = "i850";
- break;
- case PCI_DEVICE_ID_INTEL_82855PM_HB:
- bridge->driver = &intel_845_driver;
- name = "855PM";
- break;
- case PCI_DEVICE_ID_INTEL_82855GM_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82855GM_IG)) {
- bridge->driver = &intel_830_driver;
- name = "855";
- } else {
- bridge->driver = &intel_845_driver;
- name = "855GM";
+ for (i = 0; intel_agp_chipsets[i].name != NULL; i++) {
+ /* In case that multiple models of gfx chip may
+ stand on same host bridge type, this can be
+ sure we detect the right IGD. */
+ if (pdev->device == intel_agp_chipsets[i].chip_id) {
+ if ((intel_agp_chipsets[i].gmch_chip_id != 0) &&
+ find_gmch(intel_agp_chipsets[i].gmch_chip_id)) {
+ bridge->driver =
+ intel_agp_chipsets[i].gmch_driver;
+ break;
+ } else if (intel_agp_chipsets[i].multi_gmch_chip) {
+ continue;
+ } else {
+ bridge->driver = intel_agp_chipsets[i].driver;
+ break;
+ }
}
- break;
- case PCI_DEVICE_ID_INTEL_82860_HB:
- bridge->driver = &intel_860_driver;
- name = "i860";
- break;
- case PCI_DEVICE_ID_INTEL_82865_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82865_IG))
- bridge->driver = &intel_830_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "865";
- break;
- case PCI_DEVICE_ID_INTEL_82875_HB:
- bridge->driver = &intel_845_driver;
- name = "i875";
- break;
- case PCI_DEVICE_ID_INTEL_82915G_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82915G_IG))
- bridge->driver = &intel_915_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "915G";
- break;
- case PCI_DEVICE_ID_INTEL_82915GM_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82915GM_IG))
- bridge->driver = &intel_915_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "915GM";
- break;
- case PCI_DEVICE_ID_INTEL_82945G_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82945G_IG))
- bridge->driver = &intel_915_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "945G";
- break;
- case PCI_DEVICE_ID_INTEL_82945GM_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82945GM_IG))
- bridge->driver = &intel_915_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "945GM";
- break;
- case PCI_DEVICE_ID_INTEL_82946GZ_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82946GZ_IG))
- bridge->driver = &intel_i965_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "946GZ";
- break;
- case PCI_DEVICE_ID_INTEL_82965G_1_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82965G_1_IG))
- bridge->driver = &intel_i965_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "965G";
- break;
- case PCI_DEVICE_ID_INTEL_82965Q_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82965Q_IG))
- bridge->driver = &intel_i965_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "965Q";
- break;
- case PCI_DEVICE_ID_INTEL_82965G_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82965G_IG))
- bridge->driver = &intel_i965_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "965G";
- break;
- case PCI_DEVICE_ID_INTEL_82965GM_HB:
- if (find_i830(PCI_DEVICE_ID_INTEL_82965GM_IG))
- bridge->driver = &intel_i965_driver;
- else
- bridge->driver = &intel_845_driver;
- name = "965GM";
- break;
- case PCI_DEVICE_ID_INTEL_7505_0:
- bridge->driver = &intel_7505_driver;
- name = "E7505";
- break;
- case PCI_DEVICE_ID_INTEL_7205_0:
- bridge->driver = &intel_7505_driver;
- name = "E7205";
- break;
- default:
+ }
+
+ if (intel_agp_chipsets[i].name == NULL) {
if (cap_ptr)
- printk(KERN_WARNING PFX "Unsupported Intel chipset (device id: %04x)\n",
- pdev->device);
+ printk(KERN_WARNING PFX "Unsupported Intel chipset"
+ "(device id: %04x)\n", pdev->device);
+ agp_put_bridge(bridge);
+ return -ENODEV;
+ }
+
+ if (bridge->driver == NULL) {
+ printk(KERN_WARNING PFX "Failed to find bridge device "
+ "(chip_id: %04x)\n", intel_agp_chipsets[i].gmch_chip_id);
agp_put_bridge(bridge);
return -ENODEV;
- };
+ }
bridge->dev = pdev;
bridge->capndx = cap_ptr;
+ bridge->dev_private_data = &intel_private;
- if (bridge->driver == &intel_810_driver)
- bridge->dev_private_data = &intel_i810_private;
- else if (bridge->driver == &intel_830_driver)
- bridge->dev_private_data = &intel_i830_private;
-
- printk(KERN_INFO PFX "Detected an Intel %s Chipset.\n", name);
+ printk(KERN_INFO PFX "Detected an Intel %s Chipset.\n",
+ intel_agp_chipsets[i].name);
/*
* The following fixes the case where the BIOS has "forgotten" to
@@ -1988,12 +1964,6 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
pci_set_drvdata(pdev, bridge);
return agp_add_bridge(bridge);
-
-fail:
- printk(KERN_ERR PFX "Detected an Intel %s chipset, "
- "but could not find the secondary device.\n", name);
- agp_put_bridge(bridge);
- return -ENODEV;
}
static void __devexit agp_intel_remove(struct pci_dev *pdev)
@@ -2002,10 +1972,8 @@ static void __devexit agp_intel_remove(struct pci_dev *pdev)
agp_remove_bridge(bridge);
- if (intel_i810_private.i810_dev)
- pci_dev_put(intel_i810_private.i810_dev);
- if (intel_i830_private.i830_dev)
- pci_dev_put(intel_i830_private.i830_dev);
+ if (intel_private.pcidev)
+ pci_dev_put(intel_private.pcidev);
agp_put_bridge(bridge);
}
@@ -2021,10 +1989,8 @@ static int agp_intel_resume(struct pci_dev *pdev)
* as host bridge (00:00) resumes before graphics device (02:00),
* then our access to its pci space can work right.
*/
- if (intel_i810_private.i810_dev)
- pci_restore_state(intel_i810_private.i810_dev);
- if (intel_i830_private.i830_dev)
- pci_restore_state(intel_i830_private.i830_dev);
+ if (intel_private.pcidev)
+ pci_restore_state(intel_private.pcidev);
if (bridge->driver == &intel_generic_driver)
intel_configure();
@@ -2087,6 +2053,9 @@ static struct pci_device_id agp_intel_pci_table[] = {
ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
ID(PCI_DEVICE_ID_INTEL_82965G_HB),
ID(PCI_DEVICE_ID_INTEL_82965GM_HB),
+ ID(PCI_DEVICE_ID_INTEL_G33_HB),
+ ID(PCI_DEVICE_ID_INTEL_Q35_HB),
+ ID(PCI_DEVICE_ID_INTEL_Q33_HB),
{ }
};
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index c72ee97d3892..ca376b92162c 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -1061,6 +1061,7 @@ static void cyy_intr_chip(struct cyclades_card *cinfo, int chip,
if (data & info->ignore_status_mask) {
info->icount.rx++;
+ spin_unlock(&cinfo->card_lock);
return;
}
if (tty_buffer_request_room(tty, 1)) {
diff --git a/drivers/char/drm/Kconfig b/drivers/char/drm/Kconfig
index ef833a1c27eb..0b7ffa5191c6 100644
--- a/drivers/char/drm/Kconfig
+++ b/drivers/char/drm/Kconfig
@@ -6,7 +6,7 @@
#
config DRM
tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
- depends on (AGP || AGP=n) && PCI
+ depends on (AGP || AGP=n) && PCI && !EMULATED_CMPXCHG
help
Kernel-level support for the Direct Rendering Infrastructure (DRI)
introduced in XFree86 4.0. If you say Y here, you need to select
diff --git a/drivers/char/drm/drm_drawable.c b/drivers/char/drm/drm_drawable.c
index de37d5f74563..b33313be2547 100644
--- a/drivers/char/drm/drm_drawable.c
+++ b/drivers/char/drm/drm_drawable.c
@@ -172,38 +172,49 @@ int drm_rmdraw(DRM_IOCTL_ARGS)
bitfield_length = idx + 1;
- if (idx != id / (8 * sizeof(*bitfield)))
- bitfield = drm_alloc(bitfield_length *
- sizeof(*bitfield), DRM_MEM_BUFS);
+ bitfield = NULL;
- if (!bitfield && bitfield_length) {
- bitfield = dev->drw_bitfield;
- bitfield_length = dev->drw_bitfield_length;
+ if (bitfield_length) {
+ if (bitfield_length != dev->drw_bitfield_length)
+ bitfield = drm_alloc(bitfield_length *
+ sizeof(*bitfield),
+ DRM_MEM_BUFS);
+
+ if (!bitfield) {
+ bitfield = dev->drw_bitfield;
+ bitfield_length = dev->drw_bitfield_length;
+ }
}
}
if (bitfield != dev->drw_bitfield) {
info_length = 8 * sizeof(*bitfield) * bitfield_length;
- info = drm_alloc(info_length * sizeof(*info), DRM_MEM_BUFS);
+ if (info_length) {
+ info = drm_alloc(info_length * sizeof(*info),
+ DRM_MEM_BUFS);
- if (!info && info_length) {
- info = dev->drw_info;
- info_length = dev->drw_info_length;
- }
+ if (!info) {
+ info = dev->drw_info;
+ info_length = dev->drw_info_length;
+ }
+ } else
+ info = NULL;
spin_lock_irqsave(&dev->drw_lock, irqflags);
- memcpy(bitfield, dev->drw_bitfield, bitfield_length *
- sizeof(*bitfield));
+ if (bitfield)
+ memcpy(bitfield, dev->drw_bitfield, bitfield_length *
+ sizeof(*bitfield));
drm_free(dev->drw_bitfield, sizeof(*bitfield) *
dev->drw_bitfield_length, DRM_MEM_BUFS);
dev->drw_bitfield = bitfield;
dev->drw_bitfield_length = bitfield_length;
if (info != dev->drw_info) {
- memcpy(info, dev->drw_info, info_length *
- sizeof(*info));
+ if (info)
+ memcpy(info, dev->drw_info, info_length *
+ sizeof(*info));
drm_free(dev->drw_info, sizeof(*info) *
dev->drw_info_length, DRM_MEM_BUFS);
dev->drw_info = info;
diff --git a/drivers/char/drm/drm_pciids.h b/drivers/char/drm/drm_pciids.h
index 31cdde83713b..177ccc07f968 100644
--- a/drivers/char/drm/drm_pciids.h
+++ b/drivers/char/drm/drm_pciids.h
@@ -102,13 +102,20 @@
{0x1002, 0x5653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP}, \
{0x1002, 0x5835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY}, \
+ {0x1002, 0x5954, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
{0x1002, 0x5955, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+ {0x1002, 0x5974, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+ {0x1002, 0x5975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
{0x1002, 0x5960, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
{0x1002, 0x5961, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
{0x1002, 0x5962, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
{0x1002, 0x5964, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
{0x1002, 0x5965, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
{0x1002, 0x5969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \
+ {0x1002, 0x5a41, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+ {0x1002, 0x5a42, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+ {0x1002, 0x5a61, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
+ {0x1002, 0x5a62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
{0x1002, 0x5b60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5b62, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
{0x1002, 0x5b63, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index 78c1ae28f17c..b92062a239f1 100644
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -582,7 +582,7 @@ void i915_driver_irq_postinstall(drm_device_t * dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- dev_priv->swaps_lock = SPIN_LOCK_UNLOCKED;
+ spin_lock_init(&dev_priv->swaps_lock);
INIT_LIST_HEAD(&dev_priv->vbl_swaps.head);
dev_priv->swaps_pending = 0;
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index b3d4ccc33a47..154f42203b05 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -1191,6 +1191,7 @@ static int job_control(struct tty_struct *tty, struct file *file)
is_current_pgrp_orphaned())
return -EIO;
kill_pgrp(task_pgrp(current), SIGTTIN, 1);
+ set_thread_flag(TIF_SIGPENDING);
return -ERESTARTSYS;
}
}
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 46c1b97748b6..0474cac4a84e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -760,7 +760,7 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
static void extract_buf(struct entropy_store *r, __u8 *out)
{
- int i, x;
+ int i;
__u32 data[16], buf[5 + SHA_WORKSPACE_WORDS];
sha_init(buf);
@@ -772,9 +772,11 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
* attempts to find previous ouputs), unless the hash
* function can be inverted.
*/
- for (i = 0, x = 0; i < r->poolinfo->poolwords; i += 16, x+=2) {
- sha_transform(buf, (__u8 *)r->pool+i, buf + 5);
- add_entropy_words(r, &buf[x % 5], 1);
+ for (i = 0; i < r->poolinfo->poolwords; i += 16) {
+ /* hash blocks of 16 words = 512 bits */
+ sha_transform(buf, (__u8 *)(r->pool + i), buf + 5);
+ /* feed back portion of the resulting hash */
+ add_entropy_words(r, &buf[i % 5], 1);
}
/*
@@ -782,7 +784,7 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
* portion of the pool while mixing, and hash one
* final time.
*/
- __add_entropy_words(r, &buf[x % 5], 1, data);
+ __add_entropy_words(r, &buf[i % 5], 1, data);
sha_transform(buf, (__u8 *)data, buf + 5);
/*
@@ -1018,37 +1020,44 @@ random_poll(struct file *file, poll_table * wait)
return mask;
}
-static ssize_t
-random_write(struct file * file, const char __user * buffer,
- size_t count, loff_t *ppos)
+static int
+write_pool(struct entropy_store *r, const char __user *buffer, size_t count)
{
- int ret = 0;
size_t bytes;
__u32 buf[16];
const char __user *p = buffer;
- size_t c = count;
- while (c > 0) {
- bytes = min(c, sizeof(buf));
+ while (count > 0) {
+ bytes = min(count, sizeof(buf));
+ if (copy_from_user(&buf, p, bytes))
+ return -EFAULT;
- bytes -= copy_from_user(&buf, p, bytes);
- if (!bytes) {
- ret = -EFAULT;
- break;
- }
- c -= bytes;
+ count -= bytes;
p += bytes;
- add_entropy_words(&input_pool, buf, (bytes + 3) / 4);
- }
- if (p == buffer) {
- return (ssize_t)ret;
- } else {
- struct inode *inode = file->f_path.dentry->d_inode;
- inode->i_mtime = current_fs_time(inode->i_sb);
- mark_inode_dirty(inode);
- return (ssize_t)(p - buffer);
+ add_entropy_words(r, buf, (bytes + 3) / 4);
}
+
+ return 0;
+}
+
+static ssize_t
+random_write(struct file * file, const char __user * buffer,
+ size_t count, loff_t *ppos)
+{
+ size_t ret;
+ struct inode *inode = file->f_path.dentry->d_inode;
+
+ ret = write_pool(&blocking_pool, buffer, count);
+ if (ret)
+ return ret;
+ ret = write_pool(&nonblocking_pool, buffer, count);
+ if (ret)
+ return ret;
+
+ inode->i_mtime = current_fs_time(inode->i_sb);
+ mark_inode_dirty(inode);
+ return (ssize_t)count;
}
static int
@@ -1087,8 +1096,8 @@ random_ioctl(struct inode * inode, struct file * file,
return -EINVAL;
if (get_user(size, p++))
return -EFAULT;
- retval = random_write(file, (const char __user *) p,
- size, &file->f_pos);
+ retval = write_pool(&input_pool, (const char __user *)p,
+ size);
if (retval < 0)
return retval;
credit_entropy_store(&input_pool, ent_count);
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index e45113a7a472..45bf2a262a85 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -2172,11 +2172,12 @@ static int __devinit stl_initech(struct stlbrd *brdp)
}
status = inb(ioaddr + ECH_PNLSTATUS);
if ((status & ECH_PNLIDMASK) != nxtid)
- goto err_fr;
+ break;
panelp = kzalloc(sizeof(struct stlpanel), GFP_KERNEL);
if (!panelp) {
printk("STALLION: failed to allocate memory "
"(size=%Zd)\n", sizeof(struct stlpanel));
+ retval = -ENOMEM;
goto err_fr;
}
panelp->magic = STL_PANELMAGIC;
@@ -2223,8 +2224,10 @@ static int __devinit stl_initech(struct stlbrd *brdp)
brdp->nrports += panelp->nrports;
brdp->panels[panelnr++] = panelp;
if ((brdp->brdtype != BRD_ECHPCI) &&
- (ioaddr >= (brdp->ioaddr2 + brdp->iosize2)))
+ (ioaddr >= (brdp->ioaddr2 + brdp->iosize2))) {
+ retval = -EINVAL;
goto err_fr;
+ }
}
brdp->nrpanels = panelnr;
@@ -2371,6 +2374,7 @@ static int __devinit stl_pciprobe(struct pci_dev *pdev,
dev_err(&pdev->dev, "too many boards found, "
"maximum supported %d\n", STL_MAXBRDS);
mutex_unlock(&stl_brdslock);
+ retval = -ENODEV;
goto err_fr;
}
brdp->brdnr = (unsigned int)brdnr;
@@ -4710,6 +4714,29 @@ static int __init stallion_module_init(void)
spin_lock_init(&stallion_lock);
spin_lock_init(&brd_lock);
+ stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
+ if (!stl_serial) {
+ retval = -ENOMEM;
+ goto err;
+ }
+
+ stl_serial->owner = THIS_MODULE;
+ stl_serial->driver_name = stl_drvname;
+ stl_serial->name = "ttyE";
+ stl_serial->major = STL_SERIALMAJOR;
+ stl_serial->minor_start = 0;
+ stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
+ stl_serial->subtype = SERIAL_TYPE_NORMAL;
+ stl_serial->init_termios = stl_deftermios;
+ stl_serial->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+ tty_set_operations(stl_serial, &stl_ops);
+
+ retval = tty_register_driver(stl_serial);
+ if (retval) {
+ printk("STALLION: failed to register serial driver\n");
+ goto err_frtty;
+ }
+
/*
* Find any dynamically supported boards. That is via module load
* line options.
@@ -4739,13 +4766,9 @@ static int __init stallion_module_init(void)
/* this has to be _after_ isa finding because of locking */
retval = pci_register_driver(&stl_pcidriver);
- if (retval && stl_nrbrds == 0)
- goto err;
-
- stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
- if (!stl_serial) {
- retval = -ENOMEM;
- goto err_pcidr;
+ if (retval && stl_nrbrds == 0) {
+ printk(KERN_ERR "STALLION: can't register pci driver\n");
+ goto err_unrtty;
}
/*
@@ -4756,43 +4779,18 @@ static int __init stallion_module_init(void)
printk("STALLION: failed to register serial board device\n");
stallion_class = class_create(THIS_MODULE, "staliomem");
- if (IS_ERR(stallion_class)) {
- retval = PTR_ERR(stallion_class);
- goto err_reg;
- }
+ if (IS_ERR(stallion_class))
+ printk("STALLION: failed to create class\n");
for (i = 0; i < 4; i++)
class_device_create(stallion_class, NULL,
MKDEV(STL_SIOMEMMAJOR, i), NULL,
"staliomem%d", i);
- stl_serial->owner = THIS_MODULE;
- stl_serial->driver_name = stl_drvname;
- stl_serial->name = "ttyE";
- stl_serial->major = STL_SERIALMAJOR;
- stl_serial->minor_start = 0;
- stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
- stl_serial->subtype = SERIAL_TYPE_NORMAL;
- stl_serial->init_termios = stl_deftermios;
- stl_serial->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(stl_serial, &stl_ops);
-
- retval = tty_register_driver(stl_serial);
- if (retval) {
- printk("STALLION: failed to register serial driver\n");
- goto err_clsdev;
- }
-
return 0;
-err_clsdev:
- for (i = 0; i < 4; i++)
- class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
- class_destroy(stallion_class);
-err_reg:
- unregister_chrdev(STL_SIOMEMMAJOR, "staliomem");
+err_unrtty:
+ tty_unregister_driver(stl_serial);
+err_frtty:
put_tty_driver(stl_serial);
-err_pcidr:
- pci_unregister_driver(&stl_pcidriver);
- stl_free_isabrds();
err:
return retval;
}
@@ -4821,8 +4819,6 @@ static void __exit stallion_module_exit(void)
tty_unregister_device(stl_serial,
brdp->brdnr * STL_MAXPORTS + j);
}
- tty_unregister_driver(stl_serial);
- put_tty_driver(stl_serial);
for (i = 0; i < 4; i++)
class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
@@ -4834,6 +4830,9 @@ static void __exit stallion_module_exit(void)
pci_unregister_driver(&stl_pcidriver);
stl_free_isabrds();
+
+ tty_unregister_driver(stl_serial);
+ put_tty_driver(stl_serial);
}
module_init(stallion_module_init);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 75d2a46e106f..3752edc30c36 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1148,7 +1148,8 @@ int tty_check_change(struct tty_struct * tty)
return 0;
if (is_current_pgrp_orphaned())
return -EIO;
- (void) kill_pgrp(task_pgrp(current), SIGTTOU, 1);
+ kill_pgrp(task_pgrp(current), SIGTTOU, 1);
+ set_thread_flag(TIF_SIGPENDING);
return -ERESTARTSYS;
}
diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig
index 1cad32c62ed3..53f5538c0c05 100644
--- a/drivers/char/watchdog/Kconfig
+++ b/drivers/char/watchdog/Kconfig
@@ -115,6 +115,13 @@ config IXP4XX_WATCHDOG
Say N if you are unsure.
+config KS8695_WATCHDOG
+ tristate "KS8695 watchdog"
+ depends on ARCH_KS8695
+ help
+ Watchdog timer embedded into KS8695 processor. This will reboot your
+ system when the timeout is reached.
+
config S3C2410_WATCHDOG
tristate "S3C2410 Watchdog"
depends on ARCH_S3C2410
diff --git a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile
index 8bfc00cc7c2b..d90f649038c2 100644
--- a/drivers/char/watchdog/Makefile
+++ b/drivers/char/watchdog/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_21285_WATCHDOG) += wdt285.o
obj-$(CONFIG_977_WATCHDOG) += wdt977.o
obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
+obj-$(CONFIG_KS8695_WATCHDOG) += ks8695_wdt.o
obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o
diff --git a/drivers/char/watchdog/ixp2000_wdt.c b/drivers/char/watchdog/ixp2000_wdt.c
index fd955dbd588c..dc7548dcaf35 100644
--- a/drivers/char/watchdog/ixp2000_wdt.c
+++ b/drivers/char/watchdog/ixp2000_wdt.c
@@ -205,7 +205,7 @@ static void __exit ixp2000_wdt_exit(void)
module_init(ixp2000_wdt_init);
module_exit(ixp2000_wdt_exit);
-MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net">);
+MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
MODULE_DESCRIPTION("IXP2000 Network Processor Watchdog");
module_param(heartbeat, int, 0);
diff --git a/drivers/char/watchdog/ks8695_wdt.c b/drivers/char/watchdog/ks8695_wdt.c
new file mode 100644
index 000000000000..7150fb945eaf
--- /dev/null
+++ b/drivers/char/watchdog/ks8695_wdt.c
@@ -0,0 +1,308 @@
+/*
+ * Watchdog driver for Kendin/Micrel KS8695.
+ *
+ * (C) 2007 Andrew Victor
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/watchdog.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/arch/regs-timer.h>
+
+
+#define WDT_DEFAULT_TIME 5 /* seconds */
+#define WDT_MAX_TIME 171 /* seconds */
+
+static int wdt_time = WDT_DEFAULT_TIME;
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+module_param(wdt_time, int, 0);
+MODULE_PARM_DESC(wdt_time, "Watchdog time in seconds. (default="__MODULE_STRING(WDT_DEFAULT_TIME) ")");
+
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+#endif
+
+
+static unsigned long ks8695wdt_busy;
+
+/* ......................................................................... */
+
+/*
+ * Disable the watchdog.
+ */
+static void inline ks8695_wdt_stop(void)
+{
+ unsigned long tmcon;
+
+ /* disable timer0 */
+ tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+ __raw_writel(tmcon & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+}
+
+/*
+ * Enable and reset the watchdog.
+ */
+static void inline ks8695_wdt_start(void)
+{
+ unsigned long tmcon;
+ unsigned long tval = wdt_time * CLOCK_TICK_RATE;
+
+ /* disable timer0 */
+ tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+ __raw_writel(tmcon & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+
+ /* program timer0 */
+ __raw_writel(tval | T0TC_WATCHDOG, KS8695_TMR_VA + KS8695_T0TC);
+
+ /* re-enable timer0 */
+ tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+ __raw_writel(tmcon | TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+}
+
+/*
+ * Reload the watchdog timer. (ie, pat the watchdog)
+ */
+static void inline ks8695_wdt_reload(void)
+{
+ unsigned long tmcon;
+
+ /* disable, then re-enable timer0 */
+ tmcon = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
+ __raw_writel(tmcon & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+ __raw_writel(tmcon | TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
+}
+
+/*
+ * Change the watchdog time interval.
+ */
+static int ks8695_wdt_settimeout(int new_time)
+{
+ /*
+ * All counting occurs at SLOW_CLOCK / 128 = 0.256 Hz
+ *
+ * Since WDV is a 16-bit counter, the maximum period is
+ * 65536 / 0.256 = 256 seconds.
+ */
+ if ((new_time <= 0) || (new_time > WDT_MAX_TIME))
+ return -EINVAL;
+
+ /* Set new watchdog time. It will be used when ks8695_wdt_start() is called. */
+ wdt_time = new_time;
+ return 0;
+}
+
+/* ......................................................................... */
+
+/*
+ * Watchdog device is opened, and watchdog starts running.
+ */
+static int ks8695_wdt_open(struct inode *inode, struct file *file)
+{
+ if (test_and_set_bit(0, &ks8695wdt_busy))
+ return -EBUSY;
+
+ ks8695_wdt_start();
+ return nonseekable_open(inode, file);
+}
+
+/*
+ * Close the watchdog device.
+ * If CONFIG_WATCHDOG_NOWAYOUT is NOT defined then the watchdog is also
+ * disabled.
+ */
+static int ks8695_wdt_close(struct inode *inode, struct file *file)
+{
+ if (!nowayout)
+ ks8695_wdt_stop(); /* Disable the watchdog when file is closed */
+
+ clear_bit(0, &ks8695wdt_busy);
+ return 0;
+}
+
+static struct watchdog_info ks8695_wdt_info = {
+ .identity = "ks8695 watchdog",
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+};
+
+/*
+ * Handle commands from user-space.
+ */
+static int ks8695_wdt_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+ int new_value;
+
+ switch(cmd) {
+ case WDIOC_KEEPALIVE:
+ ks8695_wdt_reload(); /* pat the watchdog */
+ return 0;
+
+ case WDIOC_GETSUPPORT:
+ return copy_to_user(argp, &ks8695_wdt_info, sizeof(ks8695_wdt_info)) ? -EFAULT : 0;
+
+ case WDIOC_SETTIMEOUT:
+ if (get_user(new_value, p))
+ return -EFAULT;
+
+ if (ks8695_wdt_settimeout(new_value))
+ return -EINVAL;
+
+ /* Enable new time value */
+ ks8695_wdt_start();
+
+ /* Return current value */
+ return put_user(wdt_time, p);
+
+ case WDIOC_GETTIMEOUT:
+ return put_user(wdt_time, p);
+
+ case WDIOC_GETSTATUS:
+ case WDIOC_GETBOOTSTATUS:
+ return put_user(0, p);
+
+ case WDIOC_SETOPTIONS:
+ if (get_user(new_value, p))
+ return -EFAULT;
+
+ if (new_value & WDIOS_DISABLECARD)
+ ks8695_wdt_stop();
+ if (new_value & WDIOS_ENABLECARD)
+ ks8695_wdt_start();
+ return 0;
+
+ default:
+ return -ENOTTY;
+ }
+}
+
+/*
+ * Pat the watchdog whenever device is written to.
+ */
+static ssize_t ks8695_wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos)
+{
+ ks8695_wdt_reload(); /* pat the watchdog */
+ return len;
+}
+
+/* ......................................................................... */
+
+static const struct file_operations ks8695wdt_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .ioctl = ks8695_wdt_ioctl,
+ .open = ks8695_wdt_open,
+ .release = ks8695_wdt_close,
+ .write = ks8695_wdt_write,
+};
+
+static struct miscdevice ks8695wdt_miscdev = {
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &ks8695wdt_fops,
+};
+
+static int __init ks8695wdt_probe(struct platform_device *pdev)
+{
+ int res;
+
+ if (ks8695wdt_miscdev.parent)
+ return -EBUSY;
+ ks8695wdt_miscdev.parent = &pdev->dev;
+
+ res = misc_register(&ks8695wdt_miscdev);
+ if (res)
+ return res;
+
+ printk("KS8695 Watchdog Timer enabled (%d seconds%s)\n", wdt_time, nowayout ? ", nowayout" : "");
+ return 0;
+}
+
+static int __exit ks8695wdt_remove(struct platform_device *pdev)
+{
+ int res;
+
+ res = misc_deregister(&ks8695wdt_miscdev);
+ if (!res)
+ ks8695wdt_miscdev.parent = NULL;
+
+ return res;
+}
+
+static void ks8695wdt_shutdown(struct platform_device *pdev)
+{
+ ks8695_wdt_stop();
+}
+
+#ifdef CONFIG_PM
+
+static int ks8695wdt_suspend(struct platform_device *pdev, pm_message_t message)
+{
+ ks8695_wdt_stop();
+ return 0;
+}
+
+static int ks8695wdt_resume(struct platform_device *pdev)
+{
+ if (ks8695wdt_busy)
+ ks8695_wdt_start();
+ return 0;
+}
+
+#else
+#define ks8695wdt_suspend NULL
+#define ks8695wdt_resume NULL
+#endif
+
+static struct platform_driver ks8695wdt_driver = {
+ .probe = ks8695wdt_probe,
+ .remove = __exit_p(ks8695wdt_remove),
+ .shutdown = ks8695wdt_shutdown,
+ .suspend = ks8695wdt_suspend,
+ .resume = ks8695wdt_resume,
+ .driver = {
+ .name = "ks8695_wdt",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init ks8695_wdt_init(void)
+{
+ /* Check that the heartbeat value is within range; if not reset to the default */
+ if (ks8695_wdt_settimeout(wdt_time)) {
+ ks8695_wdt_settimeout(WDT_DEFAULT_TIME);
+ pr_info("ks8695_wdt: wdt_time value must be 1 <= wdt_time <= %i, using %d\n", wdt_time, WDT_MAX_TIME);
+ }
+
+ return platform_driver_register(&ks8695wdt_driver);
+}
+
+static void __exit ks8695_wdt_exit(void)
+{
+ platform_driver_unregister(&ks8695wdt_driver);
+}
+
+module_init(ks8695_wdt_init);
+module_exit(ks8695_wdt_exit);
+
+MODULE_AUTHOR("Andrew Victor");
+MODULE_DESCRIPTION("Watchdog driver for KS8695");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
generated by cgit v1.2.3 (git 2.0.4) at 2025-05-24 06:19:19 +0000