From 81507ea9cfa64e9851b53e0fefebfa776eda9ecb Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 28 Mar 2006 17:04:00 -0500 Subject: ACPI: request correct fixed hardware resource type (MMIO vs I/O port) ACPI supports fixed hardware (PM_TMR, GPE blocks, etc) in either I/O port or MMIO space, but used to always request the regions from I/O space because it didn't check the address_space_id. Sample ACPI fixed hardware in MMIO space (HP rx2600), was incorrectly reported in /proc/ioports, now reported in /proc/iomem: ff5c1004-ff5c1007 : PM_TMR ff5c1008-ff5c100b : PM1a_EVT_BLK ff5c100c-ff5c100d : PM1a_CNT_BLK ff5c1010-ff5c1013 : GPE0_BLK ff5c1014-ff5c1017 : GPE1_BLK Signed-off-by: Bjorn Helgaas Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/motherboard.c | 41 +++++++++++++++++++++++------------------ 1 file changed, 23 insertions(+), 18 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c index 468244147ec1..14ffe68a094e 100644 --- a/drivers/acpi/motherboard.c +++ b/drivers/acpi/motherboard.c @@ -123,41 +123,46 @@ static struct acpi_driver acpi_motherboard_driver2 = { }, }; +static void __init acpi_request_region (struct acpi_generic_address *addr, + unsigned int length, char *desc) +{ + if (!addr->address || !length) + return; + + if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO) + request_region(addr->address, length, desc); + else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) + request_mem_region(addr->address, length, desc); +} + static void __init acpi_reserve_resources(void) { - if (acpi_gbl_FADT->xpm1a_evt_blk.address && acpi_gbl_FADT->pm1_evt_len) - request_region(acpi_gbl_FADT->xpm1a_evt_blk.address, + acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk, acpi_gbl_FADT->pm1_evt_len, "PM1a_EVT_BLK"); - if (acpi_gbl_FADT->xpm1b_evt_blk.address && acpi_gbl_FADT->pm1_evt_len) - request_region(acpi_gbl_FADT->xpm1b_evt_blk.address, + acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk, acpi_gbl_FADT->pm1_evt_len, "PM1b_EVT_BLK"); - if (acpi_gbl_FADT->xpm1a_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len) - request_region(acpi_gbl_FADT->xpm1a_cnt_blk.address, + acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk, acpi_gbl_FADT->pm1_cnt_len, "PM1a_CNT_BLK"); - if (acpi_gbl_FADT->xpm1b_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len) - request_region(acpi_gbl_FADT->xpm1b_cnt_blk.address, + acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk, acpi_gbl_FADT->pm1_cnt_len, "PM1b_CNT_BLK"); - if (acpi_gbl_FADT->xpm_tmr_blk.address && acpi_gbl_FADT->pm_tm_len == 4) - request_region(acpi_gbl_FADT->xpm_tmr_blk.address, 4, "PM_TMR"); + if (acpi_gbl_FADT->pm_tm_len == 4) + acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "PM_TMR"); - if (acpi_gbl_FADT->xpm2_cnt_blk.address && acpi_gbl_FADT->pm2_cnt_len) - request_region(acpi_gbl_FADT->xpm2_cnt_blk.address, + acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk, acpi_gbl_FADT->pm2_cnt_len, "PM2_CNT_BLK"); /* Length of GPE blocks must be a non-negative multiple of 2 */ - if (acpi_gbl_FADT->xgpe0_blk.address && acpi_gbl_FADT->gpe0_blk_len && - !(acpi_gbl_FADT->gpe0_blk_len & 0x1)) - request_region(acpi_gbl_FADT->xgpe0_blk.address, + if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1)) + acpi_request_region(&acpi_gbl_FADT->xgpe0_blk, acpi_gbl_FADT->gpe0_blk_len, "GPE0_BLK"); - if (acpi_gbl_FADT->xgpe1_blk.address && acpi_gbl_FADT->gpe1_blk_len && - !(acpi_gbl_FADT->gpe1_blk_len & 0x1)) - request_region(acpi_gbl_FADT->xgpe1_blk.address, + if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1)) + acpi_request_region(&acpi_gbl_FADT->xgpe1_blk, acpi_gbl_FADT->gpe1_blk_len, "GPE1_BLK"); } -- cgit From cd090eedd85256829f762677d0752a846c1b88b9 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 28 Mar 2006 17:04:00 -0500 Subject: ACPI: Display "ACPI" to motherboard resources in /proc/io{mem,port} Add "ACPI" to motherboard resource allocation names, so people have a clue about where to look. And remove some trailing spaces. Changes these /proc/iomem entries from this: ff5c1004-ff5c1007 : PM_TMR ff5c1008-ff5c100b : PM1a_EVT_BLK ff5c100c-ff5c100d : PM1a_CNT_BLK ff5c1010-ff5c1013 : GPE0_BLK ff5c1014-ff5c1017 : GPE1_BLK to this: ff5c1004-ff5c1007 : ACPI PM_TMR ff5c1008-ff5c100b : ACPI PM1a_EVT_BLK ff5c100c-ff5c100d : ACPI PM1a_CNT_BLK ff5c1010-ff5c1013 : ACPI GPE0_BLK ff5c1014-ff5c1017 : ACPI GPE1_BLK Signed-off-by: Bjorn Helgaas Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/motherboard.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c index 14ffe68a094e..d51d68f5dd8d 100644 --- a/drivers/acpi/motherboard.c +++ b/drivers/acpi/motherboard.c @@ -37,7 +37,7 @@ ACPI_MODULE_NAME("acpi_motherboard") #define ACPI_MB_HID2 "PNP0C02" /** * Doesn't care about legacy IO ports, only IO ports beyond 0x1000 are reserved - * Doesn't care about the failure of 'request_region', since other may reserve + * Doesn't care about the failure of 'request_region', since other may reserve * the io ports as well */ #define IS_RESERVED_ADDR(base, len) \ @@ -46,7 +46,7 @@ ACPI_MODULE_NAME("acpi_motherboard") /* * Clearing the flag (IORESOURCE_BUSY) allows drivers to use * the io ports if they really know they can use it, while - * still preventing hotplug PCI devices from using it. + * still preventing hotplug PCI devices from using it. */ static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data) { @@ -138,39 +138,39 @@ static void __init acpi_request_region (struct acpi_generic_address *addr, static void __init acpi_reserve_resources(void) { acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk, - acpi_gbl_FADT->pm1_evt_len, "PM1a_EVT_BLK"); + acpi_gbl_FADT->pm1_evt_len, "ACPI PM1a_EVT_BLK"); acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk, - acpi_gbl_FADT->pm1_evt_len, "PM1b_EVT_BLK"); + acpi_gbl_FADT->pm1_evt_len, "ACPI PM1b_EVT_BLK"); acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk, - acpi_gbl_FADT->pm1_cnt_len, "PM1a_CNT_BLK"); + acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1a_CNT_BLK"); acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk, - acpi_gbl_FADT->pm1_cnt_len, "PM1b_CNT_BLK"); + acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1b_CNT_BLK"); if (acpi_gbl_FADT->pm_tm_len == 4) - acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "PM_TMR"); + acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "ACPI PM_TMR"); acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk, - acpi_gbl_FADT->pm2_cnt_len, "PM2_CNT_BLK"); + acpi_gbl_FADT->pm2_cnt_len, "ACPI PM2_CNT_BLK"); /* Length of GPE blocks must be a non-negative multiple of 2 */ if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1)) acpi_request_region(&acpi_gbl_FADT->xgpe0_blk, - acpi_gbl_FADT->gpe0_blk_len, "GPE0_BLK"); + acpi_gbl_FADT->gpe0_blk_len, "ACPI GPE0_BLK"); if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1)) acpi_request_region(&acpi_gbl_FADT->xgpe1_blk, - acpi_gbl_FADT->gpe1_blk_len, "GPE1_BLK"); + acpi_gbl_FADT->gpe1_blk_len, "ACPI GPE1_BLK"); } static int __init acpi_motherboard_init(void) { acpi_bus_register_driver(&acpi_motherboard_driver1); acpi_bus_register_driver(&acpi_motherboard_driver2); - /* + /* * Guarantee motherboard IO reservation first * This module must run after scan.c */ -- cgit