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authorRalf Baechle <ralf@linux-mips.org>2001-03-12 01:41:47 +0000
committerRalf Baechle <ralf@linux-mips.org>2001-03-12 01:41:47 +0000
commit5bf5f1e30c8cfc21a1396ed136420f29d01970c6 (patch)
tree76ca5e96392a45ca6751116b4e66a46afbc23dc7 /drivers
parent37541f7211fcefcd88059a5274700d84ceca7a99 (diff)
Dead files which for some reason still exist in our tree.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/hardware/hwcpu32.c711
-rw-r--r--drivers/acpi/hardware/hwxface.c595
-rw-r--r--drivers/acpi/ksyms.c91
3 files changed, 0 insertions, 1397 deletions
diff --git a/drivers/acpi/hardware/hwcpu32.c b/drivers/acpi/hardware/hwcpu32.c
deleted file mode 100644
index fde6d1c07..000000000
--- a/drivers/acpi/hardware/hwcpu32.c
+++ /dev/null
@@ -1,711 +0,0 @@
-/******************************************************************************
- *
- * Name: hwcpu32.c - CPU support for IA32 (Throttling, Cx_states)
- * $Revision: 39 $
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "acpi.h"
-#include "acnamesp.h"
-#include "achware.h"
-
-#define _COMPONENT HARDWARE
- MODULE_NAME ("Hwcpu32")
-
-
-#define BIT_4 0x10 /* TBD: [investigate] is this correct? */
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_enter_c1
- *
- * PARAMETERS: Pblk_address - Address of the processor control block
- * Pm_timer_ticks - Number of PM timer ticks elapsed while asleep
- *
- * RETURN: Function status.
- *
- * DESCRIPTION: Set C1 state on IA32 processor (halt)
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_enter_c1(
- ACPI_IO_ADDRESS pblk_address,
- u32 *pm_timer_ticks)
-{
- u32 timer = 0;
-
-
- if (!pm_timer_ticks) {
- /*
- * Enter C1:
- * ---------
- */
- enable();
- halt();
- *pm_timer_ticks = ACPI_UINT32_MAX;
- }
- else {
- timer = acpi_hw_pmt_ticks ();
-
- /*
- * Enter C1:
- * ---------
- */
- enable ();
- halt ();
-
- /*
- * Compute Time in C1:
- * -------------------
- */
- timer = acpi_hw_pmt_ticks () - timer;
-
- *pm_timer_ticks = timer;
- }
-
- return (AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_enter_c2
- *
- * PARAMETERS: Pblk_address - Address of the processor control block
- * Pm_timer_ticks - Number of PM timer ticks elapsed while asleep
- *
- * RETURN: <none>
- *
- * DESCRIPTION: Set C2 state on IA32 processor
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_enter_c2(
- ACPI_IO_ADDRESS pblk_address,
- u32 *pm_timer_ticks)
-{
- u32 timer = 0;
-
-
- if (!pblk_address || !pm_timer_ticks) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Disable interrupts before all C2/C3 transitions.
- */
- disable ();
-
- timer = acpi_hw_pmt_ticks ();
-
- /*
- * Enter C2:
- * ---------
- * Read from the P_LVL2 (P_BLK+4) register to invoke a C2 transition.
- */
- acpi_os_in8 ((ACPI_IO_ADDRESS) (pblk_address + 4));
-
- /*
- * Perform Dummy Op:
- * -----------------
- * We have to do something useless after reading LVL2 because chipsets
- * cannot guarantee that STPCLK# gets asserted in time to freeze execution.
- */
- acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, PM2_CONTROL);
-
- /*
- * Compute Time in C2:
- * -------------------
- */
- timer = acpi_hw_pmt_ticks () - timer;
-
- *pm_timer_ticks = timer;
-
- /*
- * Re-enable interrupts after coming out of C2/C3.
- */
- enable ();
-
- return (AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_enter_c3
- *
- * PARAMETERS: Pblk_address - Address of the processor control block
- * Pm_timer_ticks - Number of PM timer ticks elapsed while asleep
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Set C3 state on IA32 processor (UP only, cache coherency via
- * disabling bus mastering)
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_enter_c3(
- ACPI_IO_ADDRESS pblk_address,
- u32 *pm_timer_ticks)
-{
- u32 timer = 0;
- u32 bus_master_status = 0;
-
-
- if (!pblk_address || !pm_timer_ticks) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Check the BM_STS bit, if it is set, do not enter C3
- * but clear the bit (with a write) and exit, telling
- * the calling module that we spent zero time in C3.
- * If bus mastering continues, this action should
- * eventually cause a demotion to C2
- */
- if (1 == (bus_master_status =
- acpi_hw_register_bit_access (ACPI_READ, ACPI_MTX_LOCK, BM_STS)))
- {
- /*
- * Clear the BM_STS bit by setting it.
- */
- acpi_hw_register_bit_access (ACPI_WRITE, ACPI_MTX_LOCK, BM_STS, 1);
- *pm_timer_ticks = 0;
- return (AE_OK);
- }
-
- /*
- * Disable interrupts before all C2/C3 transitions.
- */
- disable();
-
- /*
- * Disable Bus Mastering:
- * ----------------------
- * Set the PM2_CNT.ARB_DIS bit (bit #0), preserving all other bits.
- */
- acpi_hw_register_bit_access(ACPI_WRITE, ACPI_MTX_LOCK, ARB_DIS, 1);
-
- /*
- * Get the timer base before entering C state
- */
- timer = acpi_hw_pmt_ticks ();
-
- /*
- * Enter C3:
- * ---------
- * Read from the P_LVL3 (P_BLK+5) register to invoke a C3 transition.
- */
- acpi_os_in8 ((ACPI_IO_ADDRESS)(pblk_address + 5));
-
- /*
- * Perform Dummy Op:
- * -----------------
- * We have to do something useless after reading LVL3 because chipsets
- * cannot guarantee that STPCLK# gets asserted in time to freeze execution.
- */
- acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, PM2_CONTROL);
- /*
- * Immediately compute the time in the C state
- */
- timer = acpi_hw_pmt_ticks() - timer;
-
- /*
- * Re-Enable Bus Mastering:
- * ------------------------
- * Clear the PM2_CNT.ARB_DIS bit (bit #0), preserving all other bits.
- */
- acpi_hw_register_bit_access(ACPI_WRITE, ACPI_MTX_LOCK, ARB_DIS, 0);
-
- /* TBD: [Unhandled]: Support 24-bit timers (this algorithm assumes 32-bit) */
-
- *pm_timer_ticks = timer;
-
- /*
- * Re-enable interrupts after coming out of C2/C3.
- */
- enable();
-
- return (AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_enter_cx
- *
- * PARAMETERS: Processor_handle - handle of the processor
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Invoke the currently active processor Cx handler to put this
- * processor to sleep.
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_enter_cx (
- ACPI_IO_ADDRESS pblk_address,
- u32 *pm_timer_ticks)
-{
-
- if (!acpi_hw_cx_handlers[acpi_hw_active_cx_state]) {
- return (AE_SUPPORT);
- }
-
- return (acpi_hw_cx_handlers[acpi_hw_active_cx_state] (pblk_address, pm_timer_ticks));
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_set_cx
- *
- * PARAMETERS: State - value (1-3) of the Cx state to 'make active'
- *
- * RETURN: Function status.
- *
- * DESCRIPTION: Sets the state to use during calls to Acpi_hw_enter_cx().
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_set_cx (
- u32 cx_state)
-{
- /*
- * Supported State?
- * ----------------
- */
- if ((cx_state < 1) || (cx_state > 3)) {
- return (AE_BAD_PARAMETER);
- }
-
- if (!acpi_hw_cx_handlers[cx_state]) {
- return (AE_SUPPORT);
- }
-
- /*
- * New Cx State?
- * -------------
- * We only care when moving from one state to another...
- */
- if (acpi_hw_active_cx_state == cx_state) {
- return (AE_OK);
- }
-
- /*
- * Prepare to Use New State:
- * -------------------------
- * If the new Cx_state is C3, the BM_RLD bit must be set to allow
- * the generation of a bus master requets to cause the processor
- * in the C3 state to transition to the C0 state.
- */
- switch (cx_state)
- {
- case 3:
- acpi_hw_register_bit_access (ACPI_WRITE, ACPI_MTX_LOCK, BM_RLD, 1);
- break;
- }
-
- /*
- * Clean up from Old State:
- * ------------------------
- * If the old Cx_state was C3, the BM_RLD bit is reset. When the
- * bit is reset, the generation of a bus master request does not
- * effect any processor in the C3 state.
- */
- switch (acpi_hw_active_cx_state)
- {
- case 3:
- acpi_hw_register_bit_access (ACPI_WRITE, ACPI_MTX_LOCK, BM_RLD, 0);
- break;
- }
-
- /*
- * Enable:
- * -------
- */
- acpi_hw_active_cx_state = cx_state;
-
- return (AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_get_cx_info
- *
- * PARAMETERS: Cx_states - Information (latencies) on all Cx states
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: This function is called both to initialize Cx handling
- * and retrieve the current Cx information (latency values).
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_get_cx_info (
- u32 cx_states[])
-{
- u8 SMP_system = FALSE;
-
-
- if (!cx_states) {
- return(AE_BAD_PARAMETER);
- }
-
- /*
- * TBD: [Unhandled] need to init SMP_system using info from the MAPIC
- * table.
- */
-
- /*
- * Set Defaults:
- * -------------
- * C0 and C1 support is implied (but what about that PROC_C1 register
- * in the FADT?!?!). Set C2/C3 to max. latency (not supported until
- * proven otherwise).
- */
- cx_states[0] = 0;
- cx_states[1] = 0;
- cx_states[2] = MAX_CX_STATE_LATENCY;
- cx_states[3] = MAX_CX_STATE_LATENCY;
-
- /*
- * C2 Supported?
- * -------------
- * We're only supporting C2 when the latency is <= 100 microseconds,
- * and on SMP systems when P_LVL2_UP (which indicates C2 only on UP)
- * is not set.
- */
- if (acpi_gbl_FADT->plvl2_lat <= 100) {
- if (!SMP_system) {
- acpi_hw_cx_handlers[2] = acpi_hw_enter_c2;
- cx_states[2] = acpi_gbl_FADT->plvl2_lat;
- }
-
- else if (!acpi_gbl_FADT->plvl2_up) {
- acpi_hw_cx_handlers[2] = acpi_hw_enter_c2;
- cx_states[2] = acpi_gbl_FADT->plvl2_lat;
- }
- }
-
- /*
- * C3 Supported?
- * -------------
- * We're only supporting C3 on UP systems when the latency is
- * <= 1000 microseconds and that include the ability to disable
- * Bus Mastering while in C3 (ARB_DIS) but allows Bus Mastering
- * requests to wake the system from C3 (BM_RLD). Note his method
- * of maintaining cache coherency (disabling of bus mastering)
- * cannot be used on SMP systems, and flushing caches (e.g. WBINVD)
- * is simply too costly (at this time).
- */
- if (acpi_gbl_FADT->plvl3_lat <= 1000) {
- if (!SMP_system && (acpi_gbl_FADT->Xpm2_cnt_blk.address &&
- acpi_gbl_FADT->pm2_cnt_len))
- {
- acpi_hw_cx_handlers[3] = acpi_hw_enter_c3;
- cx_states[3] = acpi_gbl_FADT->plvl3_lat;
- }
- }
-
- return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_get_cx_handler
- *
- * PARAMETERS: State - the Cx state
- * Handler - pointer to location for the returned handler
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: This function is called to get an installed Cx state handler.
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_get_cx_handler (
- u32 cx_state,
- ACPI_C_STATE_HANDLER *handler)
-{
-
- if ((cx_state == 0) || (cx_state >= MAX_CX_STATES) || !handler) {
- return(AE_BAD_PARAMETER);
- }
-
- *handler = acpi_hw_cx_handlers[cx_state];
-
- return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_hw_set_cx_handler
- *
- * PARAMETERS: Cx_state - the Cx state
- * Handler - new Cx state handler
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: This function is called to install a new Cx state handler.
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_hw_set_cx_handler (
- u32 cx_state,
- ACPI_C_STATE_HANDLER handler)
-{
-
- if ((cx_state == 0) || (cx_state >= MAX_CX_STATES) || !handler) {
- return(AE_BAD_PARAMETER);
- }
-
- acpi_hw_cx_handlers[cx_state] = handler;
-
- return(AE_OK);
-}
-
-
-/**************************************************************************
- *
- * FUNCTION: Acpi_hw_local_pow
- *
- * PARAMETERS: x,y operands
- *
- * RETURN: result
- *
- * DESCRIPTION: Compute x ^ y
- *
- *************************************************************************/
-
-NATIVE_UINT
-acpi_hw_local_pow (
- NATIVE_UINT x,
- NATIVE_UINT y)
-{
- NATIVE_UINT i;
- NATIVE_UINT result = 1;
-
-
- for (i = 0; i < y; i++) {
- result = result * x;
- }
-
- return (result);
-}
-
-
-/**************************************************************************
- *
- * FUNCTION: Acpi_hw_enable_throttling
- *
- * PARAMETERS: Pblk_address - Address of Pcnt (Processor Control)
- * register
- *
- * RETURN: none
- *
- * DESCRIPTION: Enable throttling by setting the THT_EN bit.
- *
- *************************************************************************/
-
-void
-acpi_hw_enable_throttling (
- ACPI_IO_ADDRESS pblk_address)
-{
- u32 pblk_value;
-
-
- pblk_value = acpi_os_in32 (pblk_address);
- pblk_value = pblk_value | BIT_4;
- acpi_os_out32 (pblk_address, pblk_value);
-
- return;
-}
-
-
-/**************************************************************************
- *
- * FUNCTION: Acpi_hw_disable_throttling
- *
- * PARAMETERS: Pblk_address - Address of Pcnt (Processor Control)
- * register
- *
- * RETURN: none
- *
- * DESCRIPTION:Disable throttling by clearing the THT_EN bit
- *
- *************************************************************************/
-
-void
-acpi_hw_disable_throttling (
- ACPI_IO_ADDRESS pblk_address)
-{
- u32 pblk_value;
-
-
- pblk_value = acpi_os_in32 (pblk_address);
- pblk_value = pblk_value & (~(u32)BIT_4);
- acpi_os_out32 (pblk_address, pblk_value);
-
- return;
-}
-
-
-/**************************************************************************
- *
- * FUNCTION: Acpi_hw_get_duty_cycle
- *
- * PARAMETERS: Duty_offset Pcnt register duty cycle field offset
- * Pblk_address Pcnt register address in chipset
- * Num_throttle_states # of CPU throttle states this system
- * supports
- *
- * RETURN: none
- *
- * DESCRIPTION: Get the duty cycle from the chipset
- *
- *************************************************************************/
-
-u32
-acpi_hw_get_duty_cycle (
- u8 duty_offset,
- ACPI_IO_ADDRESS pblk_address,
- u32 num_throttle_states)
-{
- NATIVE_UINT index;
- u32 duty32_value;
- u32 pcnt_mask_off_duty_field;
-
-
- /*
- * Use Num_throttle_states - 1 as mask [ex. 8 - 1 = 7 (Fh)]
- * and then shift it into the right position
- */
- pcnt_mask_off_duty_field = num_throttle_states - 1;
-
- /*
- * Read in the current value from the port
- */
- duty32_value = acpi_os_in32 ((ACPI_IO_ADDRESS) pblk_address);
-
- /*
- * Shift the the value to LSB
- */
- for (index = 0; index < (NATIVE_UINT) duty_offset; index++) {
- duty32_value = duty32_value >> 1;
- }
-
- /*
- * Get the duty field only
- */
- duty32_value = duty32_value & pcnt_mask_off_duty_field;
-
- return ((u32) duty32_value);
-}
-
-
-/**************************************************************************
- *
- * FUNCTION: Acpi_hw_program_duty_cycle
- *
- * PARAMETERS: Duty_offset Pcnt register duty cycle field offset
- * Duty_cycle duty cycle to program into chipset
- * Pblk_address Pcnt register address in chipset
- * Num_throttle_states # of CPU throttle states this system
- * supports
- *
- * RETURN: none
- *
- * DESCRIPTION: Program chipset with specified duty cycle by bit-shifting the
- * duty cycle bits to the appropriate offset, reading the duty
- * cycle register, OR-ing in the duty cycle, and writing it to
- * the Pcnt register.
- *
- *************************************************************************/
-
-void
-acpi_hw_program_duty_cycle (
- u8 duty_offset,
- u32 duty_cycle,
- ACPI_IO_ADDRESS pblk_address,
- u32 num_throttle_states)
-{
- NATIVE_UINT index;
- u32 duty32_value;
- u32 pcnt_mask_off_duty_field;
- u32 port_value;
-
-
- /*
- * valid Duty_cycle passed
- */
- duty32_value = duty_cycle;
-
- /*
- * use Num_throttle_states - 1 as mask [ex. 8 - 1 = 7 (Fh)]
- * and then shift it into the right position
- */
- pcnt_mask_off_duty_field = num_throttle_states - 1;
-
- /*
- * Shift the mask
- */
- for (index = 0; index < (NATIVE_UINT) duty_offset; index++) {
- pcnt_mask_off_duty_field = pcnt_mask_off_duty_field << 1;
- duty32_value = duty32_value << 1;
- }
-
- /*
- * Read in the current value from the port
- */
- port_value = acpi_os_in32 ((ACPI_IO_ADDRESS) pblk_address);
-
- /*
- * Mask off the duty field so we don't OR in junk!
- */
- port_value = port_value & (~pcnt_mask_off_duty_field);
-
- /*
- * OR in the bits we want to write out to the port
- */
- port_value = (port_value | duty32_value) & (~(u32)BIT_4);
-
- /*
- * write it to the port
- */
- acpi_os_out32 ((ACPI_IO_ADDRESS) pblk_address, port_value);
-
- return;
-}
-
-
diff --git a/drivers/acpi/hardware/hwxface.c b/drivers/acpi/hardware/hwxface.c
deleted file mode 100644
index 156c946e7..000000000
--- a/drivers/acpi/hardware/hwxface.c
+++ /dev/null
@@ -1,595 +0,0 @@
-
-/******************************************************************************
- *
- * Name: hwxface.c - Hardware access external interfaces
- * $Revision: 36 $
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "acpi.h"
-#include "acnamesp.h"
-#include "achware.h"
-
-#define _COMPONENT HARDWARE
- MODULE_NAME ("hwxface")
-
-
-/******************************************************************************
- *
- * Hardware globals
- *
- ******************************************************************************/
-
-
-ACPI_C_STATE_HANDLER acpi_hw_cx_handlers[MAX_CX_STATES] =
- {NULL, acpi_hw_enter_c1, NULL, NULL};
-
-u32 acpi_hw_active_cx_state = 1;
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_get_processor_throttling_info
- *
- * PARAMETERS: Processor_handle - handle for the cpu to get info about
- * User_buffer - caller supplied buffer
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Get throttling capabilities for the processor, this routine
- * builds the data directly into the callers buffer
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_get_processor_throttling_info (
- ACPI_HANDLE processor_handle,
- ACPI_BUFFER *user_buffer)
-{
- NATIVE_UINT percent_step;
- NATIVE_UINT next_percent;
- NATIVE_UINT num_throttle_states;
- NATIVE_UINT buffer_space_needed;
- NATIVE_UINT i;
- u8 duty_width;
- ACPI_NAMESPACE_NODE *cpu_node;
- ACPI_OPERAND_OBJECT *cpu_obj;
- ACPI_CPU_THROTTLING_STATE *state_ptr;
-
-
- /*
- * Have to at least have a buffer to return info in
- */
- if (!user_buffer) {
- return(AE_BAD_PARAMETER);
- }
-
- /*
- * Convert and validate the device handle
- */
-
- cpu_node = acpi_ns_convert_handle_to_entry (processor_handle);
- if (!cpu_node) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Check for an existing internal object
- */
-
- cpu_obj = acpi_ns_get_attached_object ((ACPI_HANDLE) cpu_node);
- if (!cpu_obj) {
- return (AE_NOT_FOUND);
- }
-
- /*
- * (Duty Width on IA-64 is zero)
- */
- duty_width = acpi_gbl_FADT->duty_width;
-
- /*
- * P0 must always have a P_BLK all others may be null
- * in either case, we can't throttle a processor that has no P_BLK
- *
- * Also if no Duty width, one state and it is 100%
- *
- */
- if (!cpu_obj->processor.length || !duty_width ||
- (ACPI_UINT16_MAX < cpu_obj->processor.address))
- {
- /*
- * Acpi_even though we can't throttle, we still have one state (100%)
- */
- num_throttle_states = 1;
- }
-
- else {
- num_throttle_states = (int) acpi_hw_local_pow (2,duty_width);
- }
-
- buffer_space_needed = num_throttle_states * sizeof (ACPI_CPU_THROTTLING_STATE);
-
- if ((user_buffer->length < buffer_space_needed) || !user_buffer->pointer) {
- user_buffer->length = buffer_space_needed;
- return (AE_BUFFER_OVERFLOW);
- }
-
- user_buffer->length = buffer_space_needed;
- state_ptr = (ACPI_CPU_THROTTLING_STATE *) user_buffer->pointer;
- percent_step = 1000 / num_throttle_states;
-
- /*
- * Build each entry in the buffer. Note that we're using the value
- * 1000 and dividing each state by 10 to better avoid round-off
- * accumulation. Also note that the throttling STATES are ordered
- * sequentially from 100% (state 0) on down (e.g. 87.5% = state 1),
- * which is exactly opposite from duty cycle values (12.5% = state 1).
- */
- for (i = 0, next_percent = 1000; i < num_throttle_states; i++) {
- state_ptr[i].state_number = i;
- state_ptr[i].percent_of_clock = next_percent / 10;
- next_percent -= percent_step;
- }
-
- return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_get_processor_throttling_state
- *
- * PARAMETERS: Processor_handle - handle for the cpu to throttle
- * Throttle_state - throttling state to enter
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Get current hardware throttling state
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_get_processor_throttling_state (
- ACPI_HANDLE processor_handle,
- u32 *throttle_state)
-{
- ACPI_NAMESPACE_NODE *cpu_node;
- ACPI_OPERAND_OBJECT *cpu_obj;
- u32 num_throttle_states;
- u32 duty_cycle;
- u8 duty_offset;
- u8 duty_width;
-
-
- /* Convert and validate the device handle */
-
- cpu_node = acpi_ns_convert_handle_to_entry (processor_handle);
- if (!cpu_node || !throttle_state) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Check for an existing internal object */
-
- cpu_obj = acpi_ns_get_attached_object ((ACPI_HANDLE) cpu_node);
- if (!cpu_obj) {
- return (AE_NOT_FOUND);
- }
-
- /*
- * No Duty fields in IA64 tables
- */
- duty_offset = acpi_gbl_FADT->duty_offset;
- duty_width = acpi_gbl_FADT->duty_width;
-
- /*
- * Must have a valid P_BLK P0 must have a P_BLK all others may be null
- * in either case, we can't thottle a processor that has no P_BLK
- * that means we are in the only supported state (0 - 100%)
- *
- * also, if Duty_width is zero there are no additional states
- */
- if (!cpu_obj->processor.length || !duty_width ||
- (ACPI_UINT16_MAX < cpu_obj->processor.address))
- {
- *throttle_state = 0;
- return(AE_OK);
- }
-
- num_throttle_states = (u32) acpi_hw_local_pow (2,duty_width);
-
- /*
- * Get the current duty cycle value.
- */
- duty_cycle = acpi_hw_get_duty_cycle (duty_offset,
- cpu_obj->processor.address,
- num_throttle_states);
-
- /*
- * Convert duty cycle to throttling state (invert).
- */
- if (duty_cycle == 0) {
- *throttle_state = 0;
- }
-
- else {
- *throttle_state = num_throttle_states - duty_cycle;
- }
-
- return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_set_processor_throttling_state
- *
- * PARAMETERS: Processor_handle - handle for the cpu to throttle
- * Throttle_state - throttling state to enter
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Set hardware into requested throttling state, the handle
- * passed in must have a valid P_BLK
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_set_processor_throttling_state (
- ACPI_HANDLE processor_handle,
- u32 throttle_state)
-{
- ACPI_NAMESPACE_NODE *cpu_node;
- ACPI_OPERAND_OBJECT *cpu_obj;
- u32 num_throttle_states = 0;
- u8 duty_offset;
- u8 duty_width;
- u32 duty_cycle = 0;
-
-
- /* Convert and validate the device handle */
-
- cpu_node = acpi_ns_convert_handle_to_entry (processor_handle);
- if (!cpu_node) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Check for an existing internal object */
-
- cpu_obj = acpi_ns_get_attached_object ((ACPI_HANDLE) cpu_node);
- if (!cpu_obj) {
- return (AE_NOT_FOUND);
- }
-
- /*
- * No Duty fields in IA64 tables
- */
- duty_offset = acpi_gbl_FADT->duty_offset;
- duty_width = acpi_gbl_FADT->duty_width;
-
- /*
- * Must have a valid P_BLK P0 must have a P_BLK all others may be null
- * in either case, we can't thottle a processor that has no P_BLK
- * that means we are in the only supported state (0 - 100%)
- *
- * also, if Duty_width is zero there are no additional states
- */
- if (!cpu_obj->processor.length || !duty_width ||
- (ACPI_UINT16_MAX < cpu_obj->processor.address))
- {
- /*
- * If caller wants to set the state to the only state we handle
- * we're done.
- */
- if (throttle_state == 0) {
- return (AE_OK);
- }
-
- /*
- * Can't set this state
- */
- return (AE_SUPPORT);
- }
-
- num_throttle_states = (u32) acpi_hw_local_pow (2,duty_width);
-
- /*
- * Convert throttling state to duty cycle (invert).
- */
- if (throttle_state > 0) {
- duty_cycle = num_throttle_states - throttle_state;
- }
-
- /*
- * Turn off throttling (don't muck with the h/w while throttling).
- */
- acpi_hw_disable_throttling (cpu_obj->processor.address);
-
- /*
- * Program the throttling state.
- */
- acpi_hw_program_duty_cycle (duty_offset, duty_cycle,
- cpu_obj->processor.address, num_throttle_states);
-
- /*
- * Only enable throttling for non-zero states (0 - 100%)
- */
- if (throttle_state) {
- acpi_hw_enable_throttling (cpu_obj->processor.address);
- }
-
- return(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_get_processor_cx_info
- *
- * PARAMETERS: Processor_handle - handle for the cpu return info about
- * User_buffer - caller supplied buffer
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Get Cx state latencies, this routine
- * builds the data directly into the callers buffer
- *
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_get_processor_cx_info (
- ACPI_HANDLE processor_handle,
- ACPI_BUFFER *user_buffer)
-{
- ACPI_STATUS status = AE_OK;
- u32 cx_state_latencies[4] = {0, 0, 0, 0};
- NATIVE_UINT buffer_space_needed = 0;
- ACPI_CX_STATE *state_ptr = NULL;
- NATIVE_UINT i = 0;
-
-
- /*
- * Have to at least have a buffer to return info in
- */
- if (!user_buffer) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_hw_get_cx_info (cx_state_latencies);
- if (ACPI_FAILURE (status)) {
- return (status);
- }
-
- buffer_space_needed = 4 * sizeof (ACPI_CX_STATE);
-
- if ((user_buffer->length < buffer_space_needed) || !user_buffer->pointer) {
- user_buffer->length = buffer_space_needed;
- return (AE_BUFFER_OVERFLOW);
- }
-
- user_buffer->length = buffer_space_needed;
-
- state_ptr = (ACPI_CX_STATE *) user_buffer->pointer;
-
- for (i = 0; i < 4; i++) {
- state_ptr[i].state_number = i;
- state_ptr[i].latency = cx_state_latencies[i];
- }
-
- return (AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_set_processor_sleep_state
- *
- * PARAMETERS: Processor_handle - handle for the cpu return info about
- * Cx_state - the Cx sleeping state (C1-C3) to make
- * 'active'
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Sets which Cx state will be used during calls to
- * Acpi_processor_sleep ()
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_set_processor_sleep_state (
- ACPI_HANDLE processor_handle,
- u32 cx_state)
-{
- ACPI_STATUS status;
-
-
- status = acpi_hw_set_cx (cx_state);
-
- return (status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: Acpi_processor_sleep
- *
- * PARAMETERS: Processor_handle - handle for the cpu to put to sleep (Cx)
- * Time_sleeping - time (in microseconds) elapsed while
- * sleeping
- *
- * RETURN: Status of function
- *
- * DESCRIPTION: Puts the processor into the currently active sleep state (Cx)
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_processor_sleep (
- ACPI_HANDLE processor_handle,
- u32 *pm_timer_ticks)
-{
- ACPI_NAMESPACE_NODE *cpu_node = NULL;
- ACPI_OPERAND_OBJECT *cpu_obj = NULL;
- ACPI_IO_ADDRESS address = 0;
-
-
- /*
- * Convert Processor_handle to Pblk_addres...
- */
-
- /* Convert and validate the device handle */
-
- cpu_node = acpi_ns_convert_handle_to_entry (processor_handle);
- if (!cpu_node) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Check for an existing internal object */
-
- cpu_obj = acpi_ns_get_attached_object ((ACPI_HANDLE) cpu_node);
- if (!cpu_obj) {
- return (AE_NOT_FOUND);
- }
-
- /* Get the processor register block (P_BLK) address */
-
- address = cpu_obj->processor.address;
- if (!cpu_obj->processor.length) {
- /* Ensure a NULL addresss (note that P_BLK isn't required for C1) */
-
- address = 0;
- }
-
- /*
- * Enter the currently active Cx sleep state.
- */
- return (acpi_hw_enter_cx (address, pm_timer_ticks));
-}
-
-
-/******************************************************************************
- *
- * FUNCTION: Acpi_get_timer
- *
- * PARAMETERS: none
- *
- * RETURN: Current value of the ACPI PMT (timer)
- *
- * DESCRIPTION: Obtains current value of ACPI PMT
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_get_timer (
- u32 *out_ticks)
-{
-
- if (!out_ticks) {
- return (AE_BAD_PARAMETER);
- }
-
- *out_ticks = acpi_hw_pmt_ticks ();
-
- return (AE_OK);
-}
-
-
-/******************************************************************************
- *
- * FUNCTION: Acpi_set_firmware_waking_vector
- *
- * PARAMETERS: Physical_address - Physical address of ACPI real mode
- * entry point.
- *
- * RETURN: AE_OK or AE_ERROR
- *
- * DESCRIPTION: Access function for d_firmware_waking_vector field in FACS
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_set_firmware_waking_vector (
- ACPI_PHYSICAL_ADDRESS physical_address)
-{
-
-
- /* Make sure that we have an FACS */
-
- if (!acpi_gbl_FACS) {
- return (AE_NO_ACPI_TABLES);
- }
-
- /* Set the vector */
-
- if (acpi_gbl_FACS->vector_width == 32) {
- * (u32 *) acpi_gbl_FACS->firmware_waking_vector = (u32) physical_address;
- }
- else {
- *acpi_gbl_FACS->firmware_waking_vector = physical_address;
- }
-
- return (AE_OK);
-}
-
-
-/******************************************************************************
- *
- * FUNCTION: Acpi_get_firmware_waking_vector
- *
- * PARAMETERS: *Physical_address - Output buffer where contents of
- * the Firmware_waking_vector field of
- * the FACS will be stored.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Access function for d_firmware_waking_vector field in FACS
- *
- ******************************************************************************/
-
-ACPI_STATUS
-acpi_get_firmware_waking_vector (
- ACPI_PHYSICAL_ADDRESS *physical_address)
-{
-
-
- if (!physical_address) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Make sure that we have an FACS */
-
- if (!acpi_gbl_FACS) {
- return (AE_NO_ACPI_TABLES);
- }
-
- /* Get the vector */
-
- if (acpi_gbl_FACS->vector_width == 32) {
- *physical_address = * (u32 *) acpi_gbl_FACS->firmware_waking_vector;
- }
- else {
- *physical_address = *acpi_gbl_FACS->firmware_waking_vector;
- }
-
- return (AE_OK);
-}
-
-
diff --git a/drivers/acpi/ksyms.c b/drivers/acpi/ksyms.c
deleted file mode 100644
index 13f4fe0e7..000000000
--- a/drivers/acpi/ksyms.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * ksyms.c - ACPI exported symbols
- *
- * Copyright (C) 2000 Andrew Grover
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/acpi.h>
-#include "acpi.h"
-#include "acdebug.h"
-
-extern int acpi_in_debugger;
-
-#define _COMPONENT OS_DEPENDENT
- MODULE_NAME ("symbols")
-
-#ifdef ENABLE_DEBUGGER
-EXPORT_SYMBOL(acpi_in_debugger);
-EXPORT_SYMBOL(acpi_db_user_commands);
-#endif
-
-EXPORT_SYMBOL(acpi_os_free);
-EXPORT_SYMBOL(acpi_os_breakpoint);
-EXPORT_SYMBOL(acpi_os_printf);
-EXPORT_SYMBOL(acpi_os_callocate);
-EXPORT_SYMBOL(acpi_os_sleep);
-EXPORT_SYMBOL(acpi_os_sleep_usec);
-EXPORT_SYMBOL(acpi_os_in8);
-EXPORT_SYMBOL(acpi_os_out8);
-EXPORT_SYMBOL(acpi_os_queue_for_execution);
-
-EXPORT_SYMBOL(acpi_dbg_layer);
-EXPORT_SYMBOL(acpi_dbg_level);
-EXPORT_SYMBOL(function_exit);
-EXPORT_SYMBOL(function_trace);
-EXPORT_SYMBOL(function_status_exit);
-EXPORT_SYMBOL(function_value_exit);
-EXPORT_SYMBOL(debug_print_raw);
-EXPORT_SYMBOL(debug_print_prefix);
-
-EXPORT_SYMBOL(acpi_cm_strncmp);
-EXPORT_SYMBOL(acpi_cm_memcpy);
-EXPORT_SYMBOL(acpi_cm_memset);
-
-EXPORT_SYMBOL(acpi_get_handle);
-EXPORT_SYMBOL(acpi_get_parent);
-EXPORT_SYMBOL(acpi_get_type);
-EXPORT_SYMBOL(acpi_get_name);
-EXPORT_SYMBOL(acpi_get_object_info);
-EXPORT_SYMBOL(acpi_get_next_object);
-EXPORT_SYMBOL(acpi_evaluate_object);
-
-EXPORT_SYMBOL(acpi_install_notify_handler);
-EXPORT_SYMBOL(acpi_remove_notify_handler);
-EXPORT_SYMBOL(acpi_install_gpe_handler);
-EXPORT_SYMBOL(acpi_remove_gpe_handler);
-EXPORT_SYMBOL(acpi_install_address_space_handler);
-EXPORT_SYMBOL(acpi_remove_address_space_handler);
-
-EXPORT_SYMBOL(acpi_get_current_resources);
-EXPORT_SYMBOL(acpi_get_possible_resources);
-EXPORT_SYMBOL(acpi_set_current_resources);
-
-EXPORT_SYMBOL(acpi_enable_event);
-EXPORT_SYMBOL(acpi_disable_event);
-EXPORT_SYMBOL(acpi_clear_event);
-
-EXPORT_SYMBOL(acpi_get_processor_throttling_info);
-EXPORT_SYMBOL(acpi_get_processor_throttling_state);
-EXPORT_SYMBOL(acpi_set_processor_throttling_state);
-
-EXPORT_SYMBOL(acpi_get_processor_cx_info);
-EXPORT_SYMBOL(acpi_set_processor_sleep_state);
-EXPORT_SYMBOL(acpi_processor_sleep);