hugetlb: make unmap_ref_private multi-size-aware
[zen-stable.git] / drivers / acpi / resources / rsirq.c
bloba8805efc036658d4622dac5dadfb631fcd6493a6
1 /*******************************************************************************
3 * Module Name: rsirq - IRQ resource descriptors
5 ******************************************************************************/
7 /*
8 * Copyright (C) 2000 - 2008, Intel Corp.
9 * All rights reserved.
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12 * modification, are permitted provided that the following conditions
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16 * without modification.
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
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30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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44 #include <acpi/acpi.h>
45 #include <acpi/acresrc.h>
47 #define _COMPONENT ACPI_RESOURCES
48 ACPI_MODULE_NAME("rsirq")
50 /*******************************************************************************
52 * acpi_rs_get_irq
54 ******************************************************************************/
55 struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
56 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
57 ACPI_RS_SIZE(struct acpi_resource_irq),
58 ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
60 /* Get the IRQ mask (bytes 1:2) */
62 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
63 AML_OFFSET(irq.irq_mask),
64 ACPI_RS_OFFSET(data.irq.interrupt_count)},
66 /* Set default flags (others are zero) */
68 {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
69 ACPI_EDGE_SENSITIVE,
70 1},
72 /* Get the descriptor length (2 or 3 for IRQ descriptor) */
74 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
75 AML_OFFSET(irq.descriptor_type),
76 0},
78 /* All done if no flag byte present in descriptor */
80 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
82 /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
84 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
85 AML_OFFSET(irq.flags),
86 0},
88 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
89 AML_OFFSET(irq.flags),
90 3},
92 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
93 AML_OFFSET(irq.flags),
97 /*******************************************************************************
99 * acpi_rs_set_irq
101 ******************************************************************************/
103 struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
104 /* Start with a default descriptor of length 3 */
106 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
107 sizeof(struct aml_resource_irq),
108 ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
110 /* Convert interrupt list to 16-bit IRQ bitmask */
112 {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
113 AML_OFFSET(irq.irq_mask),
114 ACPI_RS_OFFSET(data.irq.interrupt_count)},
116 /* Set the flags byte */
118 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
119 AML_OFFSET(irq.flags),
122 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
123 AML_OFFSET(irq.flags),
126 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
127 AML_OFFSET(irq.flags),
131 * All done if the output descriptor length is required to be 3
132 * (i.e., optimization to 2 bytes cannot be attempted)
134 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
135 ACPI_RS_OFFSET(data.irq.descriptor_length),
138 /* Set length to 2 bytes (no flags byte) */
140 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
143 * All done if the output descriptor length is required to be 2.
145 * TBD: Perhaps we should check for error if input flags are not
146 * compatible with a 2-byte descriptor.
148 {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
149 ACPI_RS_OFFSET(data.irq.descriptor_length),
152 /* Reset length to 3 bytes (descriptor with flags byte) */
154 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
157 * Check if the flags byte is necessary. Not needed if the flags are:
158 * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
160 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
161 ACPI_RS_OFFSET(data.irq.triggering),
162 ACPI_EDGE_SENSITIVE},
164 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
165 ACPI_RS_OFFSET(data.irq.polarity),
166 ACPI_ACTIVE_HIGH},
168 {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
169 ACPI_RS_OFFSET(data.irq.sharable),
170 ACPI_EXCLUSIVE},
172 /* We can optimize to a 2-byte irq_no_flags() descriptor */
174 {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
177 /*******************************************************************************
179 * acpi_rs_convert_ext_irq
181 ******************************************************************************/
183 struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
184 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
185 ACPI_RS_SIZE(struct acpi_resource_extended_irq),
186 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
188 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
189 sizeof(struct aml_resource_extended_irq),
192 /* Flag bits */
194 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
195 AML_OFFSET(extended_irq.flags),
198 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
199 AML_OFFSET(extended_irq.flags),
202 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
203 AML_OFFSET(extended_irq.flags),
206 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
207 AML_OFFSET(extended_irq.flags),
210 /* IRQ Table length (Byte4) */
212 {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
213 AML_OFFSET(extended_irq.interrupt_count),
214 sizeof(u32)}
217 /* Copy every IRQ in the table, each is 32 bits */
219 {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
220 AML_OFFSET(extended_irq.interrupts[0]),
224 /* Optional resource_source (Index and String) */
226 {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
227 ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
228 sizeof(struct aml_resource_extended_irq)}
231 /*******************************************************************************
233 * acpi_rs_convert_dma
235 ******************************************************************************/
237 struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
238 {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
239 ACPI_RS_SIZE(struct acpi_resource_dma),
240 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
242 {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
243 sizeof(struct aml_resource_dma),
246 /* Flags: transfer preference, bus mastering, channel speed */
248 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
249 AML_OFFSET(dma.flags),
252 {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
253 AML_OFFSET(dma.flags),
256 {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
257 AML_OFFSET(dma.flags),
260 /* DMA channel mask bits */
262 {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
263 AML_OFFSET(dma.dma_channel_mask),
264 ACPI_RS_OFFSET(data.dma.channel_count)}