ACPICA: Implement simplified Table Manager

The Table Manager component has been completely
redesigned and reimplemented. The new design is much
simpler, and reduces the overall code and data size of
the kernel-resident ACPICA by approximately 5%. Also,
it is now possible to obtain the ACPI tables very early
during kernel initialization, even before dynamic memory
management is initialized.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 26 insertions, 23 deletions

diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index 95ddeb48bc0f..bb0eb50cd28f 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -529,7 +529,7 @@ static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
 
         /* Install new interrupt handler if not SCI_INT */
 
-        if (interrupt_number != acpi_gbl_FADT->sci_int) {
+        if (interrupt_number != acpi_gbl_FADT.sci_interrupt) {
                 status = acpi_os_install_interrupt_handler(interrupt_number,
                                                            acpi_ev_gpe_xrupt_handler,
                                                            gpe_xrupt);
@@ -567,7 +567,7 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt)
 
         /* We never want to remove the SCI interrupt handler */
 
-        if (gpe_xrupt->interrupt_number == acpi_gbl_FADT->sci_int) {
+        if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) {
                 gpe_xrupt->gpe_block_list_head = NULL;
                 return_ACPI_STATUS(AE_OK);
         }
@@ -803,17 +803,17 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
                                    (gpe_block->block_address.address
                                     + i + gpe_block->register_count));
 
-                this_register->status_address.address_space_id =
-                    gpe_block->block_address.address_space_id;
-                this_register->enable_address.address_space_id =
-                    gpe_block->block_address.address_space_id;
-                this_register->status_address.register_bit_width =
+                this_register->status_address.space_id =
+                    gpe_block->block_address.space_id;
+                this_register->enable_address.space_id =
+                    gpe_block->block_address.space_id;
+                this_register->status_address.bit_width =
                     ACPI_GPE_REGISTER_WIDTH;
-                this_register->enable_address.register_bit_width =
+                this_register->enable_address.bit_width =
                     ACPI_GPE_REGISTER_WIDTH;
-                this_register->status_address.register_bit_offset =
+                this_register->status_address.bit_offset =
                     ACPI_GPE_REGISTER_WIDTH;
-                this_register->enable_address.register_bit_offset =
+                this_register->enable_address.bit_offset =
                     ACPI_GPE_REGISTER_WIDTH;
 
                 /* Init the event_info for each GPE within this register */
@@ -1109,11 +1109,12 @@ acpi_status acpi_ev_gpe_initialize(void)
          * If EITHER the register length OR the block address are zero, then that
          * particular block is not supported.
          */
-        if (acpi_gbl_FADT->gpe0_blk_len && acpi_gbl_FADT->xgpe0_blk.address) {
+        if (acpi_gbl_FADT.gpe0_block_length &&
+            acpi_gbl_FADT.xgpe0_block.address) {
 
                 /* GPE block 0 exists (has both length and address > 0) */
 
-                register_count0 = (u16) (acpi_gbl_FADT->gpe0_blk_len / 2);
+                register_count0 = (u16) (acpi_gbl_FADT.gpe0_block_length / 2);
 
                 gpe_number_max =
                     (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1;
@@ -1121,9 +1122,9 @@ acpi_status acpi_ev_gpe_initialize(void)
                 /* Install GPE Block 0 */
 
                 status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
-                                                  &acpi_gbl_FADT->xgpe0_blk,
+                                                  &acpi_gbl_FADT.xgpe0_block,
                                                   register_count0, 0,
-                                                  acpi_gbl_FADT->sci_int,
+                                                  acpi_gbl_FADT.sci_interrupt,
                                                   &acpi_gbl_gpe_fadt_blocks[0]);
 
                 if (ACPI_FAILURE(status)) {
@@ -1132,20 +1133,21 @@ acpi_status acpi_ev_gpe_initialize(void)
                 }
         }
 
-        if (acpi_gbl_FADT->gpe1_blk_len && acpi_gbl_FADT->xgpe1_blk.address) {
+        if (acpi_gbl_FADT.gpe1_block_length &&
+            acpi_gbl_FADT.xgpe1_block.address) {
 
                 /* GPE block 1 exists (has both length and address > 0) */
 
-                register_count1 = (u16) (acpi_gbl_FADT->gpe1_blk_len / 2);
+                register_count1 = (u16) (acpi_gbl_FADT.gpe1_block_length / 2);
 
                 /* Check for GPE0/GPE1 overlap (if both banks exist) */
 
                 if ((register_count0) &&
-                    (gpe_number_max >= acpi_gbl_FADT->gpe1_base)) {
+                    (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) {
                         ACPI_ERROR((AE_INFO,
                                     "GPE0 block (GPE 0 to %d) overlaps the GPE1 block (GPE %d to %d) - Ignoring GPE1",
-                                    gpe_number_max, acpi_gbl_FADT->gpe1_base,
-                                    acpi_gbl_FADT->gpe1_base +
+                                    gpe_number_max, acpi_gbl_FADT.gpe1_base,
+                                    acpi_gbl_FADT.gpe1_base +
                                     ((register_count1 *
                                       ACPI_GPE_REGISTER_WIDTH) - 1)));
 
@@ -1157,10 +1159,11 @@ acpi_status acpi_ev_gpe_initialize(void)
 
                         status =
                             acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
-                                                     &acpi_gbl_FADT->xgpe1_blk,
+                                                     &acpi_gbl_FADT.xgpe1_block,
                                                      register_count1,
-                                                     acpi_gbl_FADT->gpe1_base,
-                                                     acpi_gbl_FADT->sci_int,
+                                                     acpi_gbl_FADT.gpe1_base,
+                                                     acpi_gbl_FADT.
+                                                     sci_interrupt,
                                                      &acpi_gbl_gpe_fadt_blocks
                                                      [1]);
 
@@ -1173,7 +1176,7 @@ acpi_status acpi_ev_gpe_initialize(void)
                          * GPE0 and GPE1 do not have to be contiguous in the GPE number
                          * space. However, GPE0 always starts at GPE number zero.
                          */
-                        gpe_number_max = acpi_gbl_FADT->gpe1_base +
+                        gpe_number_max = acpi_gbl_FADT.gpe1_base +
                             ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1);
                 }
         }