[ACPI] ACPICA 20051021

Implemented support for the EM64T and other x86_64
processors. This essentially entails recognizing
that these processors support non-aligned memory
transfers. Previously, all 64-bit processors were assumed
to lack hardware support for non-aligned transfers.

Completed conversion of the Resource Manager to nearly
full table-driven operation. Specifically, the resource
conversion code (convert AML to internal format and the
reverse) and the debug code to dump internal resource
descriptors are fully table-driven, reducing code and data
size and improving maintainability.

The OSL interfaces for Acquire and Release Lock now use a
64-bit flag word on 64-bit processors instead of a fixed
32-bit word. (Alexey Starikovskiy)

Implemented support within the resource conversion code
for the Type-Specific byte within the various ACPI 3.0
*WordSpace macros.

Fixed some issues within the resource conversion code for
the type-specific flags for both Memory and I/O address
resource descriptors. For Memory, implemented support
for the MTP and TTP flags. For I/O, split the TRS and TTP
flags into two separate fields.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 135 insertions, 198 deletions

diff --git a/drivers/acpi/resources/rsio.c b/drivers/acpi/resources/rsio.c
index 0dab8cdfa800..ef24ba110c6e 100644
--- a/drivers/acpi/resources/rsio.c
+++ b/drivers/acpi/resources/rsio.c
@@ -49,269 +49,206 @@ ACPI_MODULE_NAME("rsio")
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_rs_get_io
- *
- * PARAMETERS:  Aml                 - Pointer to the AML resource descriptor
- *              aml_resource_length - Length of the resource from the AML header
- *              Resource            - Where the internal resource is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
- *              internal resource descriptor, simplifying bitflags and handling
- *              alignment and endian issues if necessary.
+ * acpi_rs_convert_io
  *
  ******************************************************************************/
-acpi_status
-acpi_rs_get_io(union aml_resource *aml,
-               u16 aml_resource_length, struct acpi_resource *resource)
-{
-        ACPI_FUNCTION_TRACE("rs_get_io");
+struct acpi_rsconvert_info acpi_rs_convert_io[5] = {
+        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO,
+         ACPI_RS_SIZE(struct acpi_resource_io),
+         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)},
 
-        /* Get the Decode flag */
+        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO,
+         sizeof(struct aml_resource_io),
+         0},
 
-        resource->data.io.io_decode = aml->io.information & 0x01;
+        /* Decode flag */
 
+        {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode),
+         AML_OFFSET(io.flags),
+         0},
         /*
-         * Get the following contiguous fields from the AML descriptor:
-         * Minimum Base Address
-         * Maximum Base Address
+         * These fields are contiguous in both the source and destination:
          * Address Alignment
          * Length
+         * Minimum Base Address
+         * Maximum Base Address
          */
-        ACPI_MOVE_16_TO_32(&resource->data.io.minimum, &aml->io.minimum);
-        ACPI_MOVE_16_TO_32(&resource->data.io.maximum, &aml->io.maximum);
-        resource->data.io.alignment = aml->io.alignment;
-        resource->data.io.address_length = aml->io.address_length;
-
-        /* Complete the resource header */
+        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment),
+         AML_OFFSET(io.alignment),
+         2},
 
-        resource->type = ACPI_RESOURCE_TYPE_IO;
-        resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_io);
-        return_ACPI_STATUS(AE_OK);
-}
+        {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum),
+         AML_OFFSET(io.minimum),
+         2}
+};
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_rs_set_io
- *
- * PARAMETERS:  Resource            - Pointer to the resource descriptor
- *              Aml                 - Where the AML descriptor is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert an internal resource descriptor to the corresponding
- *              external AML resource descriptor.
+ * acpi_rs_convert_fixed_io
  *
  ******************************************************************************/
 
-acpi_status
-acpi_rs_set_io(struct acpi_resource *resource, union aml_resource *aml)
-{
-        ACPI_FUNCTION_TRACE("rs_set_io");
-
-        /* I/O Information Byte */
-
-        aml->io.information = (u8) (resource->data.io.io_decode & 0x01);
+struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = {
+        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO,
+         ACPI_RS_SIZE(struct acpi_resource_fixed_io),
+         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)},
 
+        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO,
+         sizeof(struct aml_resource_fixed_io),
+         0},
         /*
-         * Set the following contiguous fields in the AML descriptor:
-         * Minimum Base Address
-         * Maximum Base Address
-         * Address Alignment
+         * These fields are contiguous in both the source and destination:
+         * Base Address
          * Length
          */
-        ACPI_MOVE_32_TO_16(&aml->io.minimum, &resource->data.io.minimum);
-        ACPI_MOVE_32_TO_16(&aml->io.maximum, &resource->data.io.maximum);
-        aml->io.alignment = (u8) resource->data.io.alignment;
-        aml->io.address_length = (u8) resource->data.io.address_length;
-
-        /* Complete the AML descriptor header */
+        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length),
+         AML_OFFSET(fixed_io.address_length),
+         1},
 
-        acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_IO,
-                                    sizeof(struct aml_resource_io), aml);
-        return_ACPI_STATUS(AE_OK);
-}
+        {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address),
+         AML_OFFSET(fixed_io.address),
+         1}
+};
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_rs_get_fixed_io
- *
- * PARAMETERS:  Aml                 - Pointer to the AML resource descriptor
- *              aml_resource_length - Length of the resource from the AML header
- *              Resource            - Where the internal resource is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
- *              internal resource descriptor, simplifying bitflags and handling
- *              alignment and endian issues if necessary.
+ * acpi_rs_convert_generic_reg
  *
  ******************************************************************************/
 
-acpi_status
-acpi_rs_get_fixed_io(union aml_resource *aml,
-                     u16 aml_resource_length, struct acpi_resource *resource)
-{
-        ACPI_FUNCTION_TRACE("rs_get_fixed_io");
+struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = {
+        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
+         ACPI_RS_SIZE(struct acpi_resource_generic_register),
+         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)},
 
+        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER,
+         sizeof(struct aml_resource_generic_register),
+         0},
         /*
-         * Get the following contiguous fields from the AML descriptor:
-         * Base Address
-         * Length
+         * These fields are contiguous in both the source and destination:
+         * Address Space ID
+         * Register Bit Width
+         * Register Bit Offset
+         * Access Size
          */
-        ACPI_MOVE_16_TO_32(&resource->data.fixed_io.address,
-                           &aml->fixed_io.address);
-        resource->data.fixed_io.address_length = aml->fixed_io.address_length;
+        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id),
+         AML_OFFSET(generic_reg.address_space_id),
+         4},
 
-        /* Complete the resource header */
+        /* Get the Register Address */
 
-        resource->type = ACPI_RESOURCE_TYPE_FIXED_IO;
-        resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_io);
-        return_ACPI_STATUS(AE_OK);
-}
+        {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address),
+         AML_OFFSET(generic_reg.address),
+         1}
+};
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_rs_set_fixed_io
- *
- * PARAMETERS:  Resource            - Pointer to the resource descriptor
- *              Aml                 - Where the AML descriptor is returned
+ * acpi_rs_convert_end_dpf
  *
- * RETURN:      Status
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = {
+        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT,
+         ACPI_RS_SIZE_MIN,
+         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)},
+
+        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT,
+         sizeof(struct aml_resource_end_dependent),
+         0}
+};
+
+/*******************************************************************************
  *
- * DESCRIPTION: Convert an internal resource descriptor to the corresponding
- *              external AML resource descriptor.
+ * acpi_rs_convert_end_tag
  *
  ******************************************************************************/
 
-acpi_status
-acpi_rs_set_fixed_io(struct acpi_resource *resource, union aml_resource *aml)
-{
-        ACPI_FUNCTION_TRACE("rs_set_fixed_io");
+struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = {
+        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG,
+         ACPI_RS_SIZE_MIN,
+         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)},
 
         /*
-         * Set the following contiguous fields in the AML descriptor:
-         * Base Address
-         * Length
+         * Note: The checksum field is set to zero, meaning that the resource
+         * data is treated as if the checksum operation succeeded.
+         * (ACPI Spec 1.0b Section 6.4.2.8)
          */
-        ACPI_MOVE_32_TO_16(&aml->fixed_io.address,
-                           &resource->data.fixed_io.address);
-        aml->fixed_io.address_length =
-            (u8) resource->data.fixed_io.address_length;
-
-        /* Complete the AML descriptor header */
-
-        acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_FIXED_IO,
-                                    sizeof(struct aml_resource_fixed_io), aml);
-        return_ACPI_STATUS(AE_OK);
-}
+        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG,
+         sizeof(struct aml_resource_end_tag),
+         0}
+};
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_rs_get_dma
- *
- * PARAMETERS:  Aml                 - Pointer to the AML resource descriptor
- *              aml_resource_length - Length of the resource from the AML header
- *              Resource            - Where the internal resource is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
- *              internal resource descriptor, simplifying bitflags and handling
- *              alignment and endian issues if necessary.
+ * acpi_rs_get_start_dpf
  *
  ******************************************************************************/
 
-acpi_status
-acpi_rs_get_dma(union aml_resource *aml,
-                u16 aml_resource_length, struct acpi_resource *resource)
-{
-        u32 channel_count = 0;
-        u32 i;
-        u8 temp8;
+struct acpi_rsconvert_info acpi_rs_get_start_dpf[5] = {
+        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT,
+         ACPI_RS_SIZE(struct acpi_resource_start_dependent),
+         ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)},
 
-        ACPI_FUNCTION_TRACE("rs_get_dma");
+        /* Defaults for Compatibility and Performance priorities */
 
-        /* Decode the DMA channel bits */
+        {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+         ACPI_ACCEPTABLE_CONFIGURATION,
+         2},
 
-        for (i = 0; i < 8; i++) {
-                if ((aml->dma.dma_channel_mask >> i) & 0x01) {
-                        resource->data.dma.channels[channel_count] = i;
-                        channel_count++;
-                }
-        }
+        /* All done if there is no flag byte present in the descriptor */
 
-        resource->length = 0;
-        resource->data.dma.channel_count = channel_count;
+        {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
 
-        /*
-         * Calculate the structure size based upon the number of channels
-         * Note: Zero DMA channels is valid
-         */
-        if (channel_count > 0) {
-                resource->length = (u32) (channel_count - 1) * 4;
-        }
-
-        /* Get the flags: transfer preference, bus mastering, channel speed */
+        /* Flag byte is present, get the flags */
 
-        temp8 = aml->dma.flags;
-        resource->data.dma.transfer = temp8 & 0x03;
-        resource->data.dma.bus_master = (temp8 >> 2) & 0x01;
-        resource->data.dma.type = (temp8 >> 5) & 0x03;
+        {ACPI_RSC_2BITFLAG,
+         ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+         AML_OFFSET(start_dpf.flags),
+         0},
 
-        if (resource->data.dma.transfer == 0x03) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Invalid DMA.Transfer preference (3)\n"));
-                return_ACPI_STATUS(AE_BAD_DATA);
-        }
-
-        /* Complete the resource header */
-
-        resource->type = ACPI_RESOURCE_TYPE_DMA;
-        resource->length += ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma);
-        return_ACPI_STATUS(AE_OK);
-}
+        {ACPI_RSC_2BITFLAG,
+         ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
+         AML_OFFSET(start_dpf.flags),
+         2}
+};
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_rs_set_dma
- *
- * PARAMETERS:  Resource            - Pointer to the resource descriptor
- *              Aml                 - Where the AML descriptor is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert an internal resource descriptor to the corresponding
- *              external AML resource descriptor.
+ * acpi_rs_set_start_dpf
  *
  ******************************************************************************/
 
-acpi_status
-acpi_rs_set_dma(struct acpi_resource *resource, union aml_resource *aml)
-{
-        u8 i;
-
-        ACPI_FUNCTION_TRACE("rs_set_dma");
+struct acpi_rsconvert_info acpi_rs_set_start_dpf[6] = {
+        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT,
+         sizeof(struct aml_resource_start_dependent),
+         ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)},
 
-        /* Convert channel list to 8-bit DMA channel bitmask */
+        /* Set the default flag values */
 
-        aml->dma.dma_channel_mask = 0;
-        for (i = 0; i < resource->data.dma.channel_count; i++) {
-                aml->dma.dma_channel_mask |=
-                    (1 << resource->data.dma.channels[i]);
-        }
+        {ACPI_RSC_2BITFLAG,
+         ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+         AML_OFFSET(start_dpf.flags),
+         0},
 
-        /* Set the DMA Flag bits */
+        {ACPI_RSC_2BITFLAG,
+         ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
+         AML_OFFSET(start_dpf.flags),
+         2},
+        /*
+         * All done if flags byte is necessary -- if either priority value
+         * is not ACPI_ACCEPTABLE_CONFIGURATION
+         */
+        {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+         ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+         ACPI_ACCEPTABLE_CONFIGURATION},
 
-        aml->dma.flags = (u8)
-            (((resource->data.dma.type & 0x03) << 5) |
-             ((resource->data.dma.bus_master & 0x01) << 2) |
-             (resource->data.dma.transfer & 0x03));
+        {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+         ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
+         ACPI_ACCEPTABLE_CONFIGURATION},
 
-        /* Complete the AML descriptor header */
+        /* Flag byte is not necessary */
 
-        acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_DMA,
-                                    sizeof(struct aml_resource_dma), aml);
-        return_ACPI_STATUS(AE_OK);
-}
+        {ACPI_RSC_LENGTH, 0, 0,
+         sizeof(struct aml_resource_start_dependent_noprio)}
+};