diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-14 20:36:54 -0400 |
---|---|---|
committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-14 20:36:54 -0400 |
commit | 7dafd239ab522d38979ebe44d79aa68ad7b1a383 (patch) | |
tree | 04754a0c6495e57c1fe5f417fbfc99272d353c0e /drivers/char | |
parent | bc47ab0241c7c86da4f5e5f82fbca7d45387c18d (diff) | |
parent | 45e3e1935e2857c54783291107d33323b3ef33c8 (diff) |
Merge commit 'origin/master' into next
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/Kconfig | 4 | ||||
-rw-r--r-- | drivers/char/agp/intel-agp.c | 16 | ||||
-rw-r--r-- | drivers/char/amiserial.c | 2 | ||||
-rw-r--r-- | drivers/char/hw_random/Kconfig | 14 | ||||
-rw-r--r-- | drivers/char/hw_random/Makefile | 1 | ||||
-rw-r--r-- | drivers/char/hw_random/mxc-rnga.c | 247 | ||||
-rw-r--r-- | drivers/char/hw_random/omap-rng.c | 2 | ||||
-rw-r--r-- | drivers/char/hw_random/timeriomem-rng.c | 26 | ||||
-rw-r--r-- | drivers/char/hw_random/via-rng.c | 15 | ||||
-rw-r--r-- | drivers/char/hw_random/virtio-rng.c | 30 | ||||
-rw-r--r-- | drivers/char/virtio_console.c | 26 | ||||
-rw-r--r-- | drivers/char/vt.c | 1 |
12 files changed, 330 insertions, 54 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 02ecfd5fa61c..30bae6de6a0d 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig | |||
@@ -692,7 +692,7 @@ config HVCS | |||
692 | this driver. | 692 | this driver. |
693 | 693 | ||
694 | To compile this driver as a module, choose M here: the | 694 | To compile this driver as a module, choose M here: the |
695 | module will be called hvcs.ko. Additionally, this module | 695 | module will be called hvcs. Additionally, this module |
696 | will depend on arch specific APIs exported from hvcserver.ko | 696 | will depend on arch specific APIs exported from hvcserver.ko |
697 | which will also be compiled when this driver is built as a | 697 | which will also be compiled when this driver is built as a |
698 | module. | 698 | module. |
@@ -906,7 +906,7 @@ config DTLK | |||
906 | 906 | ||
907 | config XILINX_HWICAP | 907 | config XILINX_HWICAP |
908 | tristate "Xilinx HWICAP Support" | 908 | tristate "Xilinx HWICAP Support" |
909 | depends on XILINX_VIRTEX | 909 | depends on XILINX_VIRTEX || MICROBLAZE |
910 | help | 910 | help |
911 | This option enables support for Xilinx Internal Configuration | 911 | This option enables support for Xilinx Internal Configuration |
912 | Access Port (ICAP) driver. The ICAP is used on Xilinx Virtex | 912 | Access Port (ICAP) driver. The ICAP is used on Xilinx Virtex |
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 3686912427ba..7a748fa0dfce 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c | |||
@@ -46,6 +46,10 @@ | |||
46 | #define PCI_DEVICE_ID_INTEL_G45_IG 0x2E22 | 46 | #define PCI_DEVICE_ID_INTEL_G45_IG 0x2E22 |
47 | #define PCI_DEVICE_ID_INTEL_G41_HB 0x2E30 | 47 | #define PCI_DEVICE_ID_INTEL_G41_HB 0x2E30 |
48 | #define PCI_DEVICE_ID_INTEL_G41_IG 0x2E32 | 48 | #define PCI_DEVICE_ID_INTEL_G41_IG 0x2E32 |
49 | #define PCI_DEVICE_ID_INTEL_IGDNG_D_HB 0x0040 | ||
50 | #define PCI_DEVICE_ID_INTEL_IGDNG_D_IG 0x0042 | ||
51 | #define PCI_DEVICE_ID_INTEL_IGDNG_M_HB 0x0044 | ||
52 | #define PCI_DEVICE_ID_INTEL_IGDNG_M_IG 0x0046 | ||
49 | 53 | ||
50 | /* cover 915 and 945 variants */ | 54 | /* cover 915 and 945 variants */ |
51 | #define IS_I915 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_E7221_HB || \ | 55 | #define IS_I915 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_E7221_HB || \ |
@@ -75,7 +79,9 @@ | |||
75 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \ | 79 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \ |
76 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G45_HB || \ | 80 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G45_HB || \ |
77 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_GM45_HB || \ | 81 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_GM45_HB || \ |
78 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G41_HB) | 82 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G41_HB || \ |
83 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_D_HB || \ | ||
84 | agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_M_HB) | ||
79 | 85 | ||
80 | extern int agp_memory_reserved; | 86 | extern int agp_memory_reserved; |
81 | 87 | ||
@@ -1211,6 +1217,8 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size) | |||
1211 | case PCI_DEVICE_ID_INTEL_Q45_HB: | 1217 | case PCI_DEVICE_ID_INTEL_Q45_HB: |
1212 | case PCI_DEVICE_ID_INTEL_G45_HB: | 1218 | case PCI_DEVICE_ID_INTEL_G45_HB: |
1213 | case PCI_DEVICE_ID_INTEL_G41_HB: | 1219 | case PCI_DEVICE_ID_INTEL_G41_HB: |
1220 | case PCI_DEVICE_ID_INTEL_IGDNG_D_HB: | ||
1221 | case PCI_DEVICE_ID_INTEL_IGDNG_M_HB: | ||
1214 | *gtt_offset = *gtt_size = MB(2); | 1222 | *gtt_offset = *gtt_size = MB(2); |
1215 | break; | 1223 | break; |
1216 | default: | 1224 | default: |
@@ -2186,6 +2194,10 @@ static const struct intel_driver_description { | |||
2186 | "G45/G43", NULL, &intel_i965_driver }, | 2194 | "G45/G43", NULL, &intel_i965_driver }, |
2187 | { PCI_DEVICE_ID_INTEL_G41_HB, PCI_DEVICE_ID_INTEL_G41_IG, 0, | 2195 | { PCI_DEVICE_ID_INTEL_G41_HB, PCI_DEVICE_ID_INTEL_G41_IG, 0, |
2188 | "G41", NULL, &intel_i965_driver }, | 2196 | "G41", NULL, &intel_i965_driver }, |
2197 | { PCI_DEVICE_ID_INTEL_IGDNG_D_HB, PCI_DEVICE_ID_INTEL_IGDNG_D_IG, 0, | ||
2198 | "IGDNG/D", NULL, &intel_i965_driver }, | ||
2199 | { PCI_DEVICE_ID_INTEL_IGDNG_M_HB, PCI_DEVICE_ID_INTEL_IGDNG_M_IG, 0, | ||
2200 | "IGDNG/M", NULL, &intel_i965_driver }, | ||
2189 | { 0, 0, 0, NULL, NULL, NULL } | 2201 | { 0, 0, 0, NULL, NULL, NULL } |
2190 | }; | 2202 | }; |
2191 | 2203 | ||
@@ -2387,6 +2399,8 @@ static struct pci_device_id agp_intel_pci_table[] = { | |||
2387 | ID(PCI_DEVICE_ID_INTEL_Q45_HB), | 2399 | ID(PCI_DEVICE_ID_INTEL_Q45_HB), |
2388 | ID(PCI_DEVICE_ID_INTEL_G45_HB), | 2400 | ID(PCI_DEVICE_ID_INTEL_G45_HB), |
2389 | ID(PCI_DEVICE_ID_INTEL_G41_HB), | 2401 | ID(PCI_DEVICE_ID_INTEL_G41_HB), |
2402 | ID(PCI_DEVICE_ID_INTEL_IGDNG_D_HB), | ||
2403 | ID(PCI_DEVICE_ID_INTEL_IGDNG_M_HB), | ||
2390 | { } | 2404 | { } |
2391 | }; | 2405 | }; |
2392 | 2406 | ||
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index fd3ebd1be570..72429b6b2fa8 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c | |||
@@ -779,7 +779,7 @@ static void change_speed(struct async_struct *info, | |||
779 | info->IER |= UART_IER_MSI; | 779 | info->IER |= UART_IER_MSI; |
780 | } | 780 | } |
781 | /* TBD: | 781 | /* TBD: |
782 | * Does clearing IER_MSI imply that we should disbale the VBL interrupt ? | 782 | * Does clearing IER_MSI imply that we should disable the VBL interrupt ? |
783 | */ | 783 | */ |
784 | 784 | ||
785 | /* | 785 | /* |
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 5fab6470f4b2..f4b3f7293feb 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig | |||
@@ -88,7 +88,7 @@ config HW_RANDOM_N2RNG | |||
88 | 88 | ||
89 | config HW_RANDOM_VIA | 89 | config HW_RANDOM_VIA |
90 | tristate "VIA HW Random Number Generator support" | 90 | tristate "VIA HW Random Number Generator support" |
91 | depends on HW_RANDOM && X86_32 | 91 | depends on HW_RANDOM && X86 |
92 | default HW_RANDOM | 92 | default HW_RANDOM |
93 | ---help--- | 93 | ---help--- |
94 | This driver provides kernel-side support for the Random Number | 94 | This driver provides kernel-side support for the Random Number |
@@ -148,3 +148,15 @@ config HW_RANDOM_VIRTIO | |||
148 | 148 | ||
149 | To compile this driver as a module, choose M here: the | 149 | To compile this driver as a module, choose M here: the |
150 | module will be called virtio-rng. If unsure, say N. | 150 | module will be called virtio-rng. If unsure, say N. |
151 | |||
152 | config HW_RANDOM_MXC_RNGA | ||
153 | tristate "Freescale i.MX RNGA Random Number Generator" | ||
154 | depends on HW_RANDOM && ARCH_HAS_RNGA | ||
155 | ---help--- | ||
156 | This driver provides kernel-side support for the Random Number | ||
157 | Generator hardware found on Freescale i.MX processors. | ||
158 | |||
159 | To compile this driver as a module, choose M here: the | ||
160 | module will be called mxc-rnga. | ||
161 | |||
162 | If unsure, say Y. | ||
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index e81d21a5f28f..fd1ecd2f6731 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile | |||
@@ -15,3 +15,4 @@ obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o | |||
15 | obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o | 15 | obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o |
16 | obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o | 16 | obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o |
17 | obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o | 17 | obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o |
18 | obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o | ||
diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c new file mode 100644 index 000000000000..187c6be80f43 --- /dev/null +++ b/drivers/char/hw_random/mxc-rnga.c | |||
@@ -0,0 +1,247 @@ | |||
1 | /* | ||
2 | * RNG driver for Freescale RNGA | ||
3 | * | ||
4 | * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. | ||
5 | * Author: Alan Carvalho de Assis <acassis@gmail.com> | ||
6 | */ | ||
7 | |||
8 | /* | ||
9 | * The code contained herein is licensed under the GNU General Public | ||
10 | * License. You may obtain a copy of the GNU General Public License | ||
11 | * Version 2 or later at the following locations: | ||
12 | * | ||
13 | * http://www.opensource.org/licenses/gpl-license.html | ||
14 | * http://www.gnu.org/copyleft/gpl.html | ||
15 | * | ||
16 | * This driver is based on other RNG drivers. | ||
17 | */ | ||
18 | |||
19 | #include <linux/module.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/kernel.h> | ||
22 | #include <linux/clk.h> | ||
23 | #include <linux/err.h> | ||
24 | #include <linux/ioport.h> | ||
25 | #include <linux/platform_device.h> | ||
26 | #include <linux/hw_random.h> | ||
27 | #include <linux/io.h> | ||
28 | |||
29 | /* RNGA Registers */ | ||
30 | #define RNGA_CONTROL 0x00 | ||
31 | #define RNGA_STATUS 0x04 | ||
32 | #define RNGA_ENTROPY 0x08 | ||
33 | #define RNGA_OUTPUT_FIFO 0x0c | ||
34 | #define RNGA_MODE 0x10 | ||
35 | #define RNGA_VERIFICATION_CONTROL 0x14 | ||
36 | #define RNGA_OSC_CONTROL_COUNTER 0x18 | ||
37 | #define RNGA_OSC1_COUNTER 0x1c | ||
38 | #define RNGA_OSC2_COUNTER 0x20 | ||
39 | #define RNGA_OSC_COUNTER_STATUS 0x24 | ||
40 | |||
41 | /* RNGA Registers Range */ | ||
42 | #define RNG_ADDR_RANGE 0x28 | ||
43 | |||
44 | /* RNGA Control Register */ | ||
45 | #define RNGA_CONTROL_SLEEP 0x00000010 | ||
46 | #define RNGA_CONTROL_CLEAR_INT 0x00000008 | ||
47 | #define RNGA_CONTROL_MASK_INTS 0x00000004 | ||
48 | #define RNGA_CONTROL_HIGH_ASSURANCE 0x00000002 | ||
49 | #define RNGA_CONTROL_GO 0x00000001 | ||
50 | |||
51 | #define RNGA_STATUS_LEVEL_MASK 0x0000ff00 | ||
52 | |||
53 | /* RNGA Status Register */ | ||
54 | #define RNGA_STATUS_OSC_DEAD 0x80000000 | ||
55 | #define RNGA_STATUS_SLEEP 0x00000010 | ||
56 | #define RNGA_STATUS_ERROR_INT 0x00000008 | ||
57 | #define RNGA_STATUS_FIFO_UNDERFLOW 0x00000004 | ||
58 | #define RNGA_STATUS_LAST_READ_STATUS 0x00000002 | ||
59 | #define RNGA_STATUS_SECURITY_VIOLATION 0x00000001 | ||
60 | |||
61 | static struct platform_device *rng_dev; | ||
62 | |||
63 | static int mxc_rnga_data_present(struct hwrng *rng) | ||
64 | { | ||
65 | int level; | ||
66 | void __iomem *rng_base = (void __iomem *)rng->priv; | ||
67 | |||
68 | /* how many random numbers is in FIFO? [0-16] */ | ||
69 | level = ((__raw_readl(rng_base + RNGA_STATUS) & | ||
70 | RNGA_STATUS_LEVEL_MASK) >> 8); | ||
71 | |||
72 | return level > 0 ? 1 : 0; | ||
73 | } | ||
74 | |||
75 | static int mxc_rnga_data_read(struct hwrng *rng, u32 * data) | ||
76 | { | ||
77 | int err; | ||
78 | u32 ctrl; | ||
79 | void __iomem *rng_base = (void __iomem *)rng->priv; | ||
80 | |||
81 | /* retrieve a random number from FIFO */ | ||
82 | *data = __raw_readl(rng_base + RNGA_OUTPUT_FIFO); | ||
83 | |||
84 | /* some error while reading this random number? */ | ||
85 | err = __raw_readl(rng_base + RNGA_STATUS) & RNGA_STATUS_ERROR_INT; | ||
86 | |||
87 | /* if error: clear error interrupt, but doesn't return random number */ | ||
88 | if (err) { | ||
89 | dev_dbg(&rng_dev->dev, "Error while reading random number!\n"); | ||
90 | ctrl = __raw_readl(rng_base + RNGA_CONTROL); | ||
91 | __raw_writel(ctrl | RNGA_CONTROL_CLEAR_INT, | ||
92 | rng_base + RNGA_CONTROL); | ||
93 | return 0; | ||
94 | } else | ||
95 | return 4; | ||
96 | } | ||
97 | |||
98 | static int mxc_rnga_init(struct hwrng *rng) | ||
99 | { | ||
100 | u32 ctrl, osc; | ||
101 | void __iomem *rng_base = (void __iomem *)rng->priv; | ||
102 | |||
103 | /* wake up */ | ||
104 | ctrl = __raw_readl(rng_base + RNGA_CONTROL); | ||
105 | __raw_writel(ctrl & ~RNGA_CONTROL_SLEEP, rng_base + RNGA_CONTROL); | ||
106 | |||
107 | /* verify if oscillator is working */ | ||
108 | osc = __raw_readl(rng_base + RNGA_STATUS); | ||
109 | if (osc & RNGA_STATUS_OSC_DEAD) { | ||
110 | dev_err(&rng_dev->dev, "RNGA Oscillator is dead!\n"); | ||
111 | return -ENODEV; | ||
112 | } | ||
113 | |||
114 | /* go running */ | ||
115 | ctrl = __raw_readl(rng_base + RNGA_CONTROL); | ||
116 | __raw_writel(ctrl | RNGA_CONTROL_GO, rng_base + RNGA_CONTROL); | ||
117 | |||
118 | return 0; | ||
119 | } | ||
120 | |||
121 | static void mxc_rnga_cleanup(struct hwrng *rng) | ||
122 | { | ||
123 | u32 ctrl; | ||
124 | void __iomem *rng_base = (void __iomem *)rng->priv; | ||
125 | |||
126 | ctrl = __raw_readl(rng_base + RNGA_CONTROL); | ||
127 | |||
128 | /* stop rnga */ | ||
129 | __raw_writel(ctrl & ~RNGA_CONTROL_GO, rng_base + RNGA_CONTROL); | ||
130 | } | ||
131 | |||
132 | static struct hwrng mxc_rnga = { | ||
133 | .name = "mxc-rnga", | ||
134 | .init = mxc_rnga_init, | ||
135 | .cleanup = mxc_rnga_cleanup, | ||
136 | .data_present = mxc_rnga_data_present, | ||
137 | .data_read = mxc_rnga_data_read | ||
138 | }; | ||
139 | |||
140 | static int __init mxc_rnga_probe(struct platform_device *pdev) | ||
141 | { | ||
142 | int err = -ENODEV; | ||
143 | struct clk *clk; | ||
144 | struct resource *res, *mem; | ||
145 | void __iomem *rng_base = NULL; | ||
146 | |||
147 | if (rng_dev) | ||
148 | return -EBUSY; | ||
149 | |||
150 | clk = clk_get(&pdev->dev, "rng"); | ||
151 | if (IS_ERR(clk)) { | ||
152 | dev_err(&pdev->dev, "Could not get rng_clk!\n"); | ||
153 | err = PTR_ERR(clk); | ||
154 | goto out; | ||
155 | } | ||
156 | |||
157 | clk_enable(clk); | ||
158 | |||
159 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
160 | if (!res) { | ||
161 | err = -ENOENT; | ||
162 | goto err_region; | ||
163 | } | ||
164 | |||
165 | mem = request_mem_region(res->start, resource_size(res), pdev->name); | ||
166 | if (mem == NULL) { | ||
167 | err = -EBUSY; | ||
168 | goto err_region; | ||
169 | } | ||
170 | |||
171 | rng_base = ioremap(res->start, resource_size(res)); | ||
172 | if (!rng_base) { | ||
173 | err = -ENOMEM; | ||
174 | goto err_ioremap; | ||
175 | } | ||
176 | |||
177 | mxc_rnga.priv = (unsigned long)rng_base; | ||
178 | |||
179 | err = hwrng_register(&mxc_rnga); | ||
180 | if (err) { | ||
181 | dev_err(&pdev->dev, "MXC RNGA registering failed (%d)\n", err); | ||
182 | goto err_register; | ||
183 | } | ||
184 | |||
185 | rng_dev = pdev; | ||
186 | |||
187 | dev_info(&pdev->dev, "MXC RNGA Registered.\n"); | ||
188 | |||
189 | return 0; | ||
190 | |||
191 | err_register: | ||
192 | iounmap(rng_base); | ||
193 | rng_base = NULL; | ||
194 | |||
195 | err_ioremap: | ||
196 | release_mem_region(res->start, resource_size(res)); | ||
197 | |||
198 | err_region: | ||
199 | clk_disable(clk); | ||
200 | clk_put(clk); | ||
201 | |||
202 | out: | ||
203 | return err; | ||
204 | } | ||
205 | |||
206 | static int __exit mxc_rnga_remove(struct platform_device *pdev) | ||
207 | { | ||
208 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
209 | void __iomem *rng_base = (void __iomem *)mxc_rnga.priv; | ||
210 | struct clk *clk = clk_get(&pdev->dev, "rng"); | ||
211 | |||
212 | hwrng_unregister(&mxc_rnga); | ||
213 | |||
214 | iounmap(rng_base); | ||
215 | |||
216 | release_mem_region(res->start, resource_size(res)); | ||
217 | |||
218 | clk_disable(clk); | ||
219 | clk_put(clk); | ||
220 | |||
221 | return 0; | ||
222 | } | ||
223 | |||
224 | static struct platform_driver mxc_rnga_driver = { | ||
225 | .driver = { | ||
226 | .name = "mxc_rnga", | ||
227 | .owner = THIS_MODULE, | ||
228 | }, | ||
229 | .remove = __exit_p(mxc_rnga_remove), | ||
230 | }; | ||
231 | |||
232 | static int __init mod_init(void) | ||
233 | { | ||
234 | return platform_driver_probe(&mxc_rnga_driver, mxc_rnga_probe); | ||
235 | } | ||
236 | |||
237 | static void __exit mod_exit(void) | ||
238 | { | ||
239 | platform_driver_unregister(&mxc_rnga_driver); | ||
240 | } | ||
241 | |||
242 | module_init(mod_init); | ||
243 | module_exit(mod_exit); | ||
244 | |||
245 | MODULE_AUTHOR("Freescale Semiconductor, Inc."); | ||
246 | MODULE_DESCRIPTION("H/W RNGA driver for i.MX"); | ||
247 | MODULE_LICENSE("GPL"); | ||
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 538313f9e7ac..00dd3de1be51 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c | |||
@@ -89,7 +89,7 @@ static struct hwrng omap_rng_ops = { | |||
89 | .data_read = omap_rng_data_read, | 89 | .data_read = omap_rng_data_read, |
90 | }; | 90 | }; |
91 | 91 | ||
92 | static int __init omap_rng_probe(struct platform_device *pdev) | 92 | static int __devinit omap_rng_probe(struct platform_device *pdev) |
93 | { | 93 | { |
94 | struct resource *res, *mem; | 94 | struct resource *res, *mem; |
95 | int ret; | 95 | int ret; |
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c index dcd352ad0e7f..a94e930575f2 100644 --- a/drivers/char/hw_random/timeriomem-rng.c +++ b/drivers/char/hw_random/timeriomem-rng.c | |||
@@ -88,9 +88,9 @@ static struct hwrng timeriomem_rng_ops = { | |||
88 | .priv = 0, | 88 | .priv = 0, |
89 | }; | 89 | }; |
90 | 90 | ||
91 | static int __init timeriomem_rng_probe(struct platform_device *pdev) | 91 | static int __devinit timeriomem_rng_probe(struct platform_device *pdev) |
92 | { | 92 | { |
93 | struct resource *res, *mem; | 93 | struct resource *res; |
94 | int ret; | 94 | int ret; |
95 | 95 | ||
96 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | 96 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
@@ -98,21 +98,12 @@ static int __init timeriomem_rng_probe(struct platform_device *pdev) | |||
98 | if (!res) | 98 | if (!res) |
99 | return -ENOENT; | 99 | return -ENOENT; |
100 | 100 | ||
101 | mem = request_mem_region(res->start, res->end - res->start + 1, | ||
102 | pdev->name); | ||
103 | if (mem == NULL) | ||
104 | return -EBUSY; | ||
105 | |||
106 | dev_set_drvdata(&pdev->dev, mem); | ||
107 | |||
108 | timeriomem_rng_data = pdev->dev.platform_data; | 101 | timeriomem_rng_data = pdev->dev.platform_data; |
109 | 102 | ||
110 | timeriomem_rng_data->address = ioremap(res->start, | 103 | timeriomem_rng_data->address = ioremap(res->start, |
111 | res->end - res->start + 1); | 104 | res->end - res->start + 1); |
112 | if (!timeriomem_rng_data->address) { | 105 | if (!timeriomem_rng_data->address) |
113 | ret = -ENOMEM; | 106 | return -EIO; |
114 | goto err_ioremap; | ||
115 | } | ||
116 | 107 | ||
117 | if (timeriomem_rng_data->period != 0 | 108 | if (timeriomem_rng_data->period != 0 |
118 | && usecs_to_jiffies(timeriomem_rng_data->period) > 0) { | 109 | && usecs_to_jiffies(timeriomem_rng_data->period) > 0) { |
@@ -125,7 +116,7 @@ static int __init timeriomem_rng_probe(struct platform_device *pdev) | |||
125 | 116 | ||
126 | ret = hwrng_register(&timeriomem_rng_ops); | 117 | ret = hwrng_register(&timeriomem_rng_ops); |
127 | if (ret) | 118 | if (ret) |
128 | goto err_register; | 119 | goto failed; |
129 | 120 | ||
130 | dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n", | 121 | dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n", |
131 | timeriomem_rng_data->address, | 122 | timeriomem_rng_data->address, |
@@ -133,24 +124,19 @@ static int __init timeriomem_rng_probe(struct platform_device *pdev) | |||
133 | 124 | ||
134 | return 0; | 125 | return 0; |
135 | 126 | ||
136 | err_register: | 127 | failed: |
137 | dev_err(&pdev->dev, "problem registering\n"); | 128 | dev_err(&pdev->dev, "problem registering\n"); |
138 | iounmap(timeriomem_rng_data->address); | 129 | iounmap(timeriomem_rng_data->address); |
139 | err_ioremap: | ||
140 | release_resource(mem); | ||
141 | 130 | ||
142 | return ret; | 131 | return ret; |
143 | } | 132 | } |
144 | 133 | ||
145 | static int __devexit timeriomem_rng_remove(struct platform_device *pdev) | 134 | static int __devexit timeriomem_rng_remove(struct platform_device *pdev) |
146 | { | 135 | { |
147 | struct resource *mem = dev_get_drvdata(&pdev->dev); | ||
148 | |||
149 | del_timer_sync(&timeriomem_rng_timer); | 136 | del_timer_sync(&timeriomem_rng_timer); |
150 | hwrng_unregister(&timeriomem_rng_ops); | 137 | hwrng_unregister(&timeriomem_rng_ops); |
151 | 138 | ||
152 | iounmap(timeriomem_rng_data->address); | 139 | iounmap(timeriomem_rng_data->address); |
153 | release_resource(mem); | ||
154 | 140 | ||
155 | return 0; | 141 | return 0; |
156 | } | 142 | } |
diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c index 4e9573c1d39e..794aacb715c1 100644 --- a/drivers/char/hw_random/via-rng.c +++ b/drivers/char/hw_random/via-rng.c | |||
@@ -132,6 +132,19 @@ static int via_rng_init(struct hwrng *rng) | |||
132 | struct cpuinfo_x86 *c = &cpu_data(0); | 132 | struct cpuinfo_x86 *c = &cpu_data(0); |
133 | u32 lo, hi, old_lo; | 133 | u32 lo, hi, old_lo; |
134 | 134 | ||
135 | /* VIA Nano CPUs don't have the MSR_VIA_RNG anymore. The RNG | ||
136 | * is always enabled if CPUID rng_en is set. There is no | ||
137 | * RNG configuration like it used to be the case in this | ||
138 | * register */ | ||
139 | if ((c->x86 == 6) && (c->x86_model >= 0x0f)) { | ||
140 | if (!cpu_has_xstore_enabled) { | ||
141 | printk(KERN_ERR PFX "can't enable hardware RNG " | ||
142 | "if XSTORE is not enabled\n"); | ||
143 | return -ENODEV; | ||
144 | } | ||
145 | return 0; | ||
146 | } | ||
147 | |||
135 | /* Control the RNG via MSR. Tread lightly and pay very close | 148 | /* Control the RNG via MSR. Tread lightly and pay very close |
136 | * close attention to values written, as the reserved fields | 149 | * close attention to values written, as the reserved fields |
137 | * are documented to be "undefined and unpredictable"; but it | 150 | * are documented to be "undefined and unpredictable"; but it |
@@ -205,5 +218,5 @@ static void __exit mod_exit(void) | |||
205 | module_init(mod_init); | 218 | module_init(mod_init); |
206 | module_exit(mod_exit); | 219 | module_exit(mod_exit); |
207 | 220 | ||
208 | MODULE_DESCRIPTION("H/W RNG driver for VIA chipsets"); | 221 | MODULE_DESCRIPTION("H/W RNG driver for VIA CPU with PadLock"); |
209 | MODULE_LICENSE("GPL"); | 222 | MODULE_LICENSE("GPL"); |
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c index 86e83f883139..32216b623248 100644 --- a/drivers/char/hw_random/virtio-rng.c +++ b/drivers/char/hw_random/virtio-rng.c | |||
@@ -35,13 +35,13 @@ static DECLARE_COMPLETION(have_data); | |||
35 | 35 | ||
36 | static void random_recv_done(struct virtqueue *vq) | 36 | static void random_recv_done(struct virtqueue *vq) |
37 | { | 37 | { |
38 | int len; | 38 | unsigned int len; |
39 | 39 | ||
40 | /* We can get spurious callbacks, e.g. shared IRQs + virtio_pci. */ | 40 | /* We can get spurious callbacks, e.g. shared IRQs + virtio_pci. */ |
41 | if (!vq->vq_ops->get_buf(vq, &len)) | 41 | if (!vq->vq_ops->get_buf(vq, &len)) |
42 | return; | 42 | return; |
43 | 43 | ||
44 | data_left = len / sizeof(random_data[0]); | 44 | data_left += len; |
45 | complete(&have_data); | 45 | complete(&have_data); |
46 | } | 46 | } |
47 | 47 | ||
@@ -49,7 +49,7 @@ static void register_buffer(void) | |||
49 | { | 49 | { |
50 | struct scatterlist sg; | 50 | struct scatterlist sg; |
51 | 51 | ||
52 | sg_init_one(&sg, random_data, RANDOM_DATA_SIZE); | 52 | sg_init_one(&sg, random_data+data_left, RANDOM_DATA_SIZE-data_left); |
53 | /* There should always be room for one buffer. */ | 53 | /* There should always be room for one buffer. */ |
54 | if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) != 0) | 54 | if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) != 0) |
55 | BUG(); | 55 | BUG(); |
@@ -59,24 +59,32 @@ static void register_buffer(void) | |||
59 | /* At least we don't udelay() in a loop like some other drivers. */ | 59 | /* At least we don't udelay() in a loop like some other drivers. */ |
60 | static int virtio_data_present(struct hwrng *rng, int wait) | 60 | static int virtio_data_present(struct hwrng *rng, int wait) |
61 | { | 61 | { |
62 | if (data_left) | 62 | if (data_left >= sizeof(u32)) |
63 | return 1; | 63 | return 1; |
64 | 64 | ||
65 | again: | ||
65 | if (!wait) | 66 | if (!wait) |
66 | return 0; | 67 | return 0; |
67 | 68 | ||
68 | wait_for_completion(&have_data); | 69 | wait_for_completion(&have_data); |
70 | |||
71 | /* Not enough? Re-register. */ | ||
72 | if (unlikely(data_left < sizeof(u32))) { | ||
73 | register_buffer(); | ||
74 | goto again; | ||
75 | } | ||
76 | |||
69 | return 1; | 77 | return 1; |
70 | } | 78 | } |
71 | 79 | ||
72 | /* virtio_data_present() must have succeeded before this is called. */ | 80 | /* virtio_data_present() must have succeeded before this is called. */ |
73 | static int virtio_data_read(struct hwrng *rng, u32 *data) | 81 | static int virtio_data_read(struct hwrng *rng, u32 *data) |
74 | { | 82 | { |
75 | BUG_ON(!data_left); | 83 | BUG_ON(data_left < sizeof(u32)); |
76 | 84 | data_left -= sizeof(u32); | |
77 | *data = random_data[--data_left]; | 85 | *data = random_data[data_left / 4]; |
78 | 86 | ||
79 | if (!data_left) { | 87 | if (data_left < sizeof(u32)) { |
80 | init_completion(&have_data); | 88 | init_completion(&have_data); |
81 | register_buffer(); | 89 | register_buffer(); |
82 | } | 90 | } |
@@ -94,13 +102,13 @@ static int virtrng_probe(struct virtio_device *vdev) | |||
94 | int err; | 102 | int err; |
95 | 103 | ||
96 | /* We expect a single virtqueue. */ | 104 | /* We expect a single virtqueue. */ |
97 | vq = vdev->config->find_vq(vdev, 0, random_recv_done); | 105 | vq = virtio_find_single_vq(vdev, random_recv_done, "input"); |
98 | if (IS_ERR(vq)) | 106 | if (IS_ERR(vq)) |
99 | return PTR_ERR(vq); | 107 | return PTR_ERR(vq); |
100 | 108 | ||
101 | err = hwrng_register(&virtio_hwrng); | 109 | err = hwrng_register(&virtio_hwrng); |
102 | if (err) { | 110 | if (err) { |
103 | vdev->config->del_vq(vq); | 111 | vdev->config->del_vqs(vdev); |
104 | return err; | 112 | return err; |
105 | } | 113 | } |
106 | 114 | ||
@@ -112,7 +120,7 @@ static void virtrng_remove(struct virtio_device *vdev) | |||
112 | { | 120 | { |
113 | vdev->config->reset(vdev); | 121 | vdev->config->reset(vdev); |
114 | hwrng_unregister(&virtio_hwrng); | 122 | hwrng_unregister(&virtio_hwrng); |
115 | vdev->config->del_vq(vq); | 123 | vdev->config->del_vqs(vdev); |
116 | } | 124 | } |
117 | 125 | ||
118 | static struct virtio_device_id id_table[] = { | 126 | static struct virtio_device_id id_table[] = { |
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index ff6f5a4b58fb..c74dacfa6795 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c | |||
@@ -188,6 +188,9 @@ static void hvc_handle_input(struct virtqueue *vq) | |||
188 | * Finally we put our input buffer in the input queue, ready to receive. */ | 188 | * Finally we put our input buffer in the input queue, ready to receive. */ |
189 | static int __devinit virtcons_probe(struct virtio_device *dev) | 189 | static int __devinit virtcons_probe(struct virtio_device *dev) |
190 | { | 190 | { |
191 | vq_callback_t *callbacks[] = { hvc_handle_input, NULL}; | ||
192 | const char *names[] = { "input", "output" }; | ||
193 | struct virtqueue *vqs[2]; | ||
191 | int err; | 194 | int err; |
192 | 195 | ||
193 | vdev = dev; | 196 | vdev = dev; |
@@ -199,20 +202,15 @@ static int __devinit virtcons_probe(struct virtio_device *dev) | |||
199 | goto fail; | 202 | goto fail; |
200 | } | 203 | } |
201 | 204 | ||
202 | /* Find the input queue. */ | 205 | /* Find the queues. */ |
203 | /* FIXME: This is why we want to wean off hvc: we do nothing | 206 | /* FIXME: This is why we want to wean off hvc: we do nothing |
204 | * when input comes in. */ | 207 | * when input comes in. */ |
205 | in_vq = vdev->config->find_vq(vdev, 0, hvc_handle_input); | 208 | err = vdev->config->find_vqs(vdev, 2, vqs, callbacks, names); |
206 | if (IS_ERR(in_vq)) { | 209 | if (err) |
207 | err = PTR_ERR(in_vq); | ||
208 | goto free; | 210 | goto free; |
209 | } | ||
210 | 211 | ||
211 | out_vq = vdev->config->find_vq(vdev, 1, NULL); | 212 | in_vq = vqs[0]; |
212 | if (IS_ERR(out_vq)) { | 213 | out_vq = vqs[1]; |
213 | err = PTR_ERR(out_vq); | ||
214 | goto free_in_vq; | ||
215 | } | ||
216 | 214 | ||
217 | /* Start using the new console output. */ | 215 | /* Start using the new console output. */ |
218 | virtio_cons.get_chars = get_chars; | 216 | virtio_cons.get_chars = get_chars; |
@@ -233,17 +231,15 @@ static int __devinit virtcons_probe(struct virtio_device *dev) | |||
233 | hvc = hvc_alloc(0, 0, &virtio_cons, PAGE_SIZE); | 231 | hvc = hvc_alloc(0, 0, &virtio_cons, PAGE_SIZE); |
234 | if (IS_ERR(hvc)) { | 232 | if (IS_ERR(hvc)) { |
235 | err = PTR_ERR(hvc); | 233 | err = PTR_ERR(hvc); |
236 | goto free_out_vq; | 234 | goto free_vqs; |
237 | } | 235 | } |
238 | 236 | ||
239 | /* Register the input buffer the first time. */ | 237 | /* Register the input buffer the first time. */ |
240 | add_inbuf(); | 238 | add_inbuf(); |
241 | return 0; | 239 | return 0; |
242 | 240 | ||
243 | free_out_vq: | 241 | free_vqs: |
244 | vdev->config->del_vq(out_vq); | 242 | vdev->config->del_vqs(vdev); |
245 | free_in_vq: | ||
246 | vdev->config->del_vq(in_vq); | ||
247 | free: | 243 | free: |
248 | kfree(inbuf); | 244 | kfree(inbuf); |
249 | fail: | 245 | fail: |
diff --git a/drivers/char/vt.c b/drivers/char/vt.c index de9ebee8657b..c796a86ab7f3 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c | |||
@@ -103,7 +103,6 @@ | |||
103 | #include <linux/io.h> | 103 | #include <linux/io.h> |
104 | #include <asm/system.h> | 104 | #include <asm/system.h> |
105 | #include <linux/uaccess.h> | 105 | #include <linux/uaccess.h> |
106 | #include <linux/kmemleak.h> | ||
107 | 106 | ||
108 | #define MAX_NR_CON_DRIVER 16 | 107 | #define MAX_NR_CON_DRIVER 16 |
109 | 108 | ||