Eric Lee / smarc-ti-linux-kernel

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Commit f1b697525d5428856eaba2be2ee6dc1cf3efbbbe

Authored by Lv Zheng
Committed by Rafael J. Wysocki
1 parent 5f8b35b633
Exists in ti-lsk-linux-4.1.y and in 10 other branches dlt-processor-sdk-linux-03.00.00.04, processor-sdk-linux-02.00.01, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04

ACPICA: acpidump: Add ACPI 1.0 RSDP support. 

The acpidump currently always uses ACPI 2.0 format to dump RSDP, this patch
adds ACPI 1.0 RSDP support.

Link: https://bugs.acpica.org/show_bug.cgi?id=1097
Link: https://bugs.acpica.org/show_bug.cgi?id=1103
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reported-and-tested-by: Rudolf Marek <r.marek@assembler.cz>
Reported-and-tested-by: Rafal <fatwildcat@gmail.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Showing 3 changed files with 35 additions and 2 deletions Side-by-side Diff

drivers/acpi/acpica/actables.h
Diff comments   View file @ f1b6975
... ... @@ -49,6 +49,8 @@
49 49 /*
50 50 * tbxfroot - Root pointer utilities
51 51 */
  52 +u32 acpi_tb_get_rsdp_length(struct acpi_table_rsdp *rsdp);
  53 +
52 54 acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
53 55  
54 56 u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length);
drivers/acpi/acpica/tbxfroot.c
Diff comments   View file @ f1b6975
... ... @@ -50,6 +50,36 @@
50 50  
51 51 /*******************************************************************************
52 52 *
  53 + * FUNCTION: acpi_tb_get_rsdp_length
  54 + *
  55 + * PARAMETERS: rsdp - Pointer to RSDP
  56 + *
  57 + * RETURN: Table length
  58 + *
  59 + * DESCRIPTION: Get the length of the RSDP
  60 + *
  61 + ******************************************************************************/
  62 +u32 acpi_tb_get_rsdp_length(struct acpi_table_rsdp *rsdp)
  63 +{
  64 +
  65 + if (!ACPI_VALIDATE_RSDP_SIG(rsdp->signature)) {
  66 +
  67 + /* BAD Signature */
  68 +
  69 + return (0);
  70 + }
  71 +
  72 + /* "Length" field is available if table version >= 2 */
  73 +
  74 + if (rsdp->revision >= 2) {
  75 + return (rsdp->length);
  76 + } else {
  77 + return (ACPI_RSDP_CHECKSUM_LENGTH);
  78 + }
  79 +}
  80 +
  81 +/*******************************************************************************
  82 + *
53 83 * FUNCTION: acpi_tb_validate_rsdp
54 84 *
55 85 * PARAMETERS: rsdp - Pointer to unvalidated RSDP
... ... @@ -59,7 +89,8 @@
59 89 * DESCRIPTION: Validate the RSDP (ptr)
60 90 *
61 91 ******************************************************************************/
62   -acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
  92 +
  93 +acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp * rsdp)
63 94 {
64 95  
65 96 /*
tools/power/acpi/tools/acpidump/apdump.c
Diff comments   View file @ f1b6975
... ... @@ -146,7 +146,7 @@
146 146  
147 147 if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
148 148 rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
149   - return (rsdp->length);
  149 + return (acpi_tb_get_rsdp_length(rsdp));
150 150 }
151 151  
152 152 /* Normal ACPI table */