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 <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -123,41 +123,46 @@ static struct acpi_driver acpi_motherboard_driver2 = {
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},
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};
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static void __init acpi_request_region (struct acpi_generic_address *addr,
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unsigned int length, char *desc)
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{
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if (!addr->address || !length)
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return;
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if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO)
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request_region(addr->address, length, desc);
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else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
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request_mem_region(addr->address, length, desc);
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}
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static void __init acpi_reserve_resources(void)
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{
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if (acpi_gbl_FADT->xpm1a_evt_blk.address && acpi_gbl_FADT->pm1_evt_len)
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request_region(acpi_gbl_FADT->xpm1a_evt_blk.address,
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acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk,
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acpi_gbl_FADT->pm1_evt_len, "PM1a_EVT_BLK");
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if (acpi_gbl_FADT->xpm1b_evt_blk.address && acpi_gbl_FADT->pm1_evt_len)
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request_region(acpi_gbl_FADT->xpm1b_evt_blk.address,
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acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk,
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acpi_gbl_FADT->pm1_evt_len, "PM1b_EVT_BLK");
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if (acpi_gbl_FADT->xpm1a_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len)
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request_region(acpi_gbl_FADT->xpm1a_cnt_blk.address,
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acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk,
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acpi_gbl_FADT->pm1_cnt_len, "PM1a_CNT_BLK");
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if (acpi_gbl_FADT->xpm1b_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len)
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request_region(acpi_gbl_FADT->xpm1b_cnt_blk.address,
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acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk,
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acpi_gbl_FADT->pm1_cnt_len, "PM1b_CNT_BLK");
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if (acpi_gbl_FADT->xpm_tmr_blk.address && acpi_gbl_FADT->pm_tm_len == 4)
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request_region(acpi_gbl_FADT->xpm_tmr_blk.address, 4, "PM_TMR");
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if (acpi_gbl_FADT->pm_tm_len == 4)
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acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "PM_TMR");
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if (acpi_gbl_FADT->xpm2_cnt_blk.address && acpi_gbl_FADT->pm2_cnt_len)
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request_region(acpi_gbl_FADT->xpm2_cnt_blk.address,
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acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk,
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acpi_gbl_FADT->pm2_cnt_len, "PM2_CNT_BLK");
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/* Length of GPE blocks must be a non-negative multiple of 2 */
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if (acpi_gbl_FADT->xgpe0_blk.address && acpi_gbl_FADT->gpe0_blk_len &&
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!(acpi_gbl_FADT->gpe0_blk_len & 0x1))
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request_region(acpi_gbl_FADT->xgpe0_blk.address,
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if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1))
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acpi_request_region(&acpi_gbl_FADT->xgpe0_blk,
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acpi_gbl_FADT->gpe0_blk_len, "GPE0_BLK");
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if (acpi_gbl_FADT->xgpe1_blk.address && acpi_gbl_FADT->gpe1_blk_len &&
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!(acpi_gbl_FADT->gpe1_blk_len & 0x1))
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request_region(acpi_gbl_FADT->xgpe1_blk.address,
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if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1))
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acpi_request_region(&acpi_gbl_FADT->xgpe1_blk,
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acpi_gbl_FADT->gpe1_blk_len, "GPE1_BLK");
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}
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