Messages in this thread Patch in this message |  | | Subject | [PATCH] PnP BIOS catch up | From | Thomas Hood <> | Date | 05 Apr 2002 17:45:35 -0500 |
| |
The patch to the PnP BIOS driver that was in 2.5.7-dj and which just went into 2.5.8-pre1 did not include Brian Gerst's SMP fix. I append it below. Dave: Please feed to Linus.
The pnpbios driver in 2.4.19-pre-ac is up to date. Alan: Please feed to Marcelo! // Thomas Hood
--- linux-2.5.8-pre1/drivers/pnp/pnpbios_core.c.orig Fri Apr 5 13:48:15 2002 +++ linux-2.5.8-pre1/drivers/pnp/pnpbios_core.c Fri Apr 5 16:32:28 2002 @@ -1,10 +1,19 @@ /* - * PnP BIOS services + * pnpbios -- PnP BIOS driver + * + * This driver provides access to Plug-'n'-Play services provided by + * the PnP BIOS firmware, described in the following documents: + * Plug and Play BIOS Specification, Version 1.0A, 5 May 1994 + * Plug and Play BIOS Clarification Paper, 6 October 1994 + * Compaq Computer Corporation, Phoenix Technologies Ltd., Intel Corp. * * Originally (C) 1998 Christian Schmidt <schmidt@digadd.de> - * Modifications (c) 1998 Tom Lees <tom@lpsg.demon.co.uk> + * Modifications (C) 1998 Tom Lees <tom@lpsg.demon.co.uk> * Minor reorganizations by David Hinds <dahinds@users.sourceforge.net> - * Modifications (c) 2001,2002 by Thomas Hood <jdthood@mail.com> + * Further modifications (C) 2001, 2002 by: + * Alan Cox <alan@redhat.com> + * Thomas Hood <jdthood@mail.com> + * Brian Gerst <bgerst@didntduck.org> * * 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 @@ -19,12 +28,6 @@ * 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 - * - * References: - * Compaq Computer Corporation, Phoenix Technologies Ltd., Intel Corporation - * Plug and Play BIOS Specification, Version 1.0A, May 5, 1994 - * Plug and Play BIOS Clarification Paper, October 6, 1994 - * */ #include <linux/types.h> @@ -141,7 +144,9 @@ static spinlock_t pnp_bios_lock; static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3, - u16 arg4, u16 arg5, u16 arg6, u16 arg7) + u16 arg4, u16 arg5, u16 arg6, u16 arg7, + void *ts1_base, u32 ts1_size, + void *ts2_base, u32 ts2_size) { unsigned long flags; u16 status; @@ -155,7 +160,12 @@ /* On some boxes IRQ's during PnP BIOS calls are deadly. */ spin_lock_irqsave(&pnp_bios_lock, flags); - __cli(); + + if (ts1_size) + Q2_SET_SEL(PNP_TS1, ts1_base, ts1_size); + if (ts2_size) + Q2_SET_SEL(PNP_TS2, ts2_base, ts2_size); + __asm__ __volatile__( "pushl %%ebp\n\t" "pushl %%edi\n\t" @@ -258,8 +268,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, sizeof(struct pnp_dev_node_info)); - status = call_pnp_bios(PNP_GET_NUM_SYS_DEV_NODES, 0, PNP_TS1, 2, PNP_TS1, PNP_DS, 0, 0); + status = call_pnp_bios(PNP_GET_NUM_SYS_DEV_NODES, 0, PNP_TS1, 2, PNP_TS1, PNP_DS, 0, 0, + data, sizeof(struct pnp_dev_node_info), 0, 0); data->no_nodes &= 0xff; return status; } @@ -293,9 +303,8 @@ return PNP_FUNCTION_NOT_SUPPORTED; if ( !boot & pnpbios_dont_use_current_config ) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, nodenum, sizeof(char)); - Q2_SET_SEL(PNP_TS2, data, 64 * 1024); - status = call_pnp_bios(PNP_GET_SYS_DEV_NODE, 0, PNP_TS1, 0, PNP_TS2, boot ? 2 : 1, PNP_DS, 0); + status = call_pnp_bios(PNP_GET_SYS_DEV_NODE, 0, PNP_TS1, 0, PNP_TS2, boot ? 2 : 1, PNP_DS, 0, + nodenum, sizeof(char), data, 65536); return status; } @@ -322,8 +331,8 @@ return PNP_FUNCTION_NOT_SUPPORTED; if ( !boot & pnpbios_dont_use_current_config ) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, /* *((u16 *) data)*/ 65536); - status = call_pnp_bios(PNP_SET_SYS_DEV_NODE, nodenum, 0, PNP_TS1, boot ? 2 : 1, PNP_DS, 0, 0); + status = call_pnp_bios(PNP_SET_SYS_DEV_NODE, nodenum, 0, PNP_TS1, boot ? 2 : 1, PNP_DS, 0, 0, + data, 65536, 0, 0); return status; } @@ -354,8 +363,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, event, sizeof(u16)); - status = call_pnp_bios(PNP_GET_EVENT, 0, PNP_TS1, PNP_DS, 0, 0 ,0 ,0); + status = call_pnp_bios(PNP_GET_EVENT, 0, PNP_TS1, PNP_DS, 0, 0 ,0 ,0, + event, sizeof(u16), 0, 0); return status; } #endif @@ -369,7 +378,7 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - status = call_pnp_bios(PNP_SEND_MESSAGE, message, PNP_DS, 0, 0, 0, 0, 0); + status = call_pnp_bios(PNP_SEND_MESSAGE, message, PNP_DS, 0, 0, 0, 0, 0, 0, 0, 0, 0); return status; } #endif @@ -383,8 +392,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, sizeof(struct pnp_docking_station_info)); - status = call_pnp_bios(PNP_GET_DOCKING_STATION_INFORMATION, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0); + status = call_pnp_bios(PNP_GET_DOCKING_STATION_INFORMATION, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0, + data, sizeof(struct pnp_docking_station_info), 0, 0); return status; } #endif @@ -399,8 +408,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, info, *((u16 *) info)); - status = call_pnp_bios(PNP_SET_STATIC_ALLOCED_RES_INFO, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0); + status = call_pnp_bios(PNP_SET_STATIC_ALLOCED_RES_INFO, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0, + info, *((u16 *) info), 0, 0); return status; } #endif @@ -414,8 +423,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, info, 64 * 1024); - status = call_pnp_bios(PNP_GET_STATIC_ALLOCED_RES_INFO, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0); + status = call_pnp_bios(PNP_GET_STATIC_ALLOCED_RES_INFO, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0, + info, 65536, 0, 0); return status; } @@ -437,9 +446,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, table, *size); - Q2_SET_SEL(PNP_TS2, size, sizeof(u16)); - status = call_pnp_bios(PNP_GET_APM_ID_TABLE, 0, PNP_TS2, 0, PNP_TS1, PNP_DS, 0, 0); + status = call_pnp_bios(PNP_GET_APM_ID_TABLE, 0, PNP_TS2, 0, PNP_TS1, PNP_DS, 0, 0, + table, *size, size, sizeof(u16)); return status; } #endif @@ -452,8 +460,8 @@ u16 status; if (!pnp_bios_present()) return PNP_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, sizeof(struct pnp_isa_config_struc)); - status = call_pnp_bios(PNP_GET_PNP_ISA_CONFIG_STRUC, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0); + status = call_pnp_bios(PNP_GET_PNP_ISA_CONFIG_STRUC, 0, PNP_TS1, PNP_DS, 0, 0, 0, 0, + data, sizeof(struct pnp_isa_config_struc), 0, 0); return status; } @@ -474,8 +482,8 @@ u16 status; if (!pnp_bios_present()) return ESCD_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, sizeof(struct escd_info_struc)); - status = call_pnp_bios(PNP_GET_ESCD_INFO, 0, PNP_TS1, 2, PNP_TS1, 4, PNP_TS1, PNP_DS); + status = call_pnp_bios(PNP_GET_ESCD_INFO, 0, PNP_TS1, 2, PNP_TS1, 4, PNP_TS1, PNP_DS, + data, sizeof(struct escd_info_struc), 0, 0); return status; } @@ -497,10 +505,8 @@ u16 status; if (!pnp_bios_present()) return ESCD_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, 64 * 1024); - set_base(gdt[PNP_TS2 >> 3], nvram_base); - set_limit(gdt[PNP_TS2 >> 3], 64 * 1024); - status = call_pnp_bios(PNP_READ_ESCD, 0, PNP_TS1, PNP_TS2, PNP_DS, 0, 0, 0); + status = call_pnp_bios(PNP_READ_ESCD, 0, PNP_TS1, PNP_TS2, PNP_DS, 0, 0, 0, + data, 65536, (void *)nvram_base, 65536); return status; } @@ -522,10 +528,8 @@ u16 status; if (!pnp_bios_present()) return ESCD_FUNCTION_NOT_SUPPORTED; - Q2_SET_SEL(PNP_TS1, data, 64 * 1024); - set_base(gdt[PNP_TS2 >> 3], nvram_base); - set_limit(gdt[PNP_TS2 >> 3], 64 * 1024); - status = call_pnp_bios(PNP_WRITE_ESCD, 0, PNP_TS1, PNP_TS2, PNP_DS, 0, 0, 0); + status = call_pnp_bios(PNP_WRITE_ESCD, 0, PNP_TS1, PNP_TS2, PNP_DS, 0, 0, 0, + data, 65536, nvram_base, 65536); return status; } #endif[unhandled content-type:application/pgp-signature] |  |