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Diffstat (limited to 'include/asm-ia64/sn/tioca_provider.h')
| -rw-r--r-- | include/asm-ia64/sn/tioca_provider.h | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/include/asm-ia64/sn/tioca_provider.h b/include/asm-ia64/sn/tioca_provider.h deleted file mode 100644 index 9a820ac..0000000 --- a/include/asm-ia64/sn/tioca_provider.h +++ /dev/null @@ -1,207 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (c) 2003-2005 Silicon Graphics, Inc. All rights reserved. - */ - -#ifndef _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H -#define _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H - -#include <asm/sn/tioca.h> - -/* - * WAR enables - * Defines for individual WARs. Each is a bitmask of applicable - * part revision numbers. (1 << 1) == rev A, (1 << 2) == rev B, - * (3 << 1) == (rev A or rev B), etc - */ - -#define TIOCA_WAR_ENABLED(pv, tioca_common) \ - ((1 << tioca_common->ca_rev) & pv) - - /* TIO:ICE:FRZ:Freezer loses a PIO data ucred on PIO RD RSP with CW error */ -#define PV907908 (1 << 1) - /* ATI config space problems after BIOS execution starts */ -#define PV908234 (1 << 1) - /* CA:AGPDMA write request data mismatch with ABC1CL merge */ -#define PV895469 (1 << 1) - /* TIO:CA TLB invalidate of written GART entries possibly not occurring in CA*/ -#define PV910244 (1 << 1) - -struct tioca_dmamap{ - struct list_head cad_list; /* headed by ca_list */ - - dma_addr_t cad_dma_addr; /* Linux dma handle */ - uint cad_gart_entry; /* start entry in ca_gart_pagemap */ - uint cad_gart_size; /* #entries for this map */ -}; - -/* - * Kernel only fields. Prom may look at this stuff for debugging only. - * Access this structure through the ca_kernel_private ptr. - */ - -struct tioca_common ; - -struct tioca_kernel { - struct tioca_common *ca_common; /* tioca this belongs to */ - struct list_head ca_list; /* list of all ca's */ - struct list_head ca_dmamaps; - spinlock_t ca_lock; /* Kernel lock */ - cnodeid_t ca_closest_node; - struct list_head *ca_devices; /* bus->devices */ - - /* - * General GART stuff - */ - u64 ca_ap_size; /* size of aperature in bytes */ - u32 ca_gart_entries; /* # u64 entries in gart */ - u32 ca_ap_pagesize; /* aperature page size in bytes */ - u64 ca_ap_bus_base; /* bus address of CA aperature */ - u64 ca_gart_size; /* gart size in bytes */ - u64 *ca_gart; /* gart table vaddr */ - u64 ca_gart_coretalk_addr; /* gart coretalk addr */ - u8 ca_gart_iscoherent; /* used in tioca_tlbflush */ - - /* PCI GART convenience values */ - u64 ca_pciap_base; /* pci aperature bus base address */ - u64 ca_pciap_size; /* pci aperature size (bytes) */ - u64 ca_pcigart_base; /* gfx GART bus base address */ - u64 *ca_pcigart; /* gfx GART vm address */ - u32 ca_pcigart_entries; - u32 ca_pcigart_start; /* PCI start index in ca_gart */ - void *ca_pcigart_pagemap; - - /* AGP GART convenience values */ - u64 ca_gfxap_base; /* gfx aperature bus base address */ - u64 ca_gfxap_size; /* gfx aperature size (bytes) */ - u64 ca_gfxgart_base; /* gfx GART bus base address */ - u64 *ca_gfxgart; /* gfx GART vm address */ - u32 ca_gfxgart_entries; - u32 ca_gfxgart_start; /* agpgart start index in ca_gart */ -}; - -/* - * Common tioca info shared between kernel and prom - * - * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES - * TO THE PROM VERSION. - */ - -struct tioca_common { - struct pcibus_bussoft ca_common; /* common pciio header */ - - u32 ca_rev; - u32 ca_closest_nasid; - - u64 ca_prom_private; - u64 ca_kernel_private; -}; - -/** - * tioca_paddr_to_gart - Convert an SGI coretalk address to a CA GART entry - * @paddr: page address to convert - * - * Convert a system [coretalk] address to a GART entry. GART entries are - * formed using the following: - * - * data = ( (1<<63) | ( (REMAP_NODE_ID << 40) | (MD_CHIPLET_ID << 38) | - * (REMAP_SYS_ADDR) ) >> 12 ) - * - * DATA written to 1 GART TABLE Entry in system memory is remapped system - * addr for 1 page - * - * The data is for coretalk address format right shifted 12 bits with a - * valid bit. - * - * GART_TABLE_ENTRY [ 25:0 ] -- REMAP_SYS_ADDRESS[37:12]. - * GART_TABLE_ENTRY [ 27:26 ] -- SHUB MD chiplet id. - * GART_TABLE_ENTRY [ 41:28 ] -- REMAP_NODE_ID. - * GART_TABLE_ENTRY [ 63 ] -- Valid Bit - */ -static inline u64 -tioca_paddr_to_gart(unsigned long paddr) -{ - /* - * We are assuming right now that paddr already has the correct - * format since the address from xtalk_dmaXXX should already have - * NODE_ID, CHIPLET_ID, and SYS_ADDR in the correct locations. - */ - - return ((paddr) >> 12) | (1UL << 63); -} - -/** - * tioca_physpage_to_gart - Map a host physical page for SGI CA based DMA - * @page_addr: system page address to map - */ - -static inline unsigned long -tioca_physpage_to_gart(u64 page_addr) -{ - u64 coretalk_addr; - - coretalk_addr = PHYS_TO_TIODMA(page_addr); - if (!coretalk_addr) { - return 0; - } - - return tioca_paddr_to_gart(coretalk_addr); -} - -/** - * tioca_tlbflush - invalidate cached SGI CA GART TLB entries - * @tioca_kernel: CA context - * - * Invalidate tlb entries for a given CA GART. Main complexity is to account - * for revA bug. - */ -static inline void -tioca_tlbflush(struct tioca_kernel *tioca_kernel) -{ - volatile u64 tmp; - volatile struct tioca __iomem *ca_base; - struct tioca_common *tioca_common; - - tioca_common = tioca_kernel->ca_common; - ca_base = (struct tioca __iomem *)tioca_common->ca_common.bs_base; - - /* - * Explicit flushes not needed if GART is in cached mode - */ - if (tioca_kernel->ca_gart_iscoherent) { - if (TIOCA_WAR_ENABLED(PV910244, tioca_common)) { - /* - * PV910244: RevA CA needs explicit flushes. - * Need to put GART into uncached mode before - * flushing otherwise the explicit flush is ignored. - * - * Alternate WAR would be to leave GART cached and - * touch every CL aligned GART entry. - */ - - __sn_clrq_relaxed(&ca_base->ca_control2, CA_GART_MEM_PARAM); - __sn_setq_relaxed(&ca_base->ca_control2, CA_GART_FLUSH_TLB); - __sn_setq_relaxed(&ca_base->ca_control2, - (0x2ull << CA_GART_MEM_PARAM_SHFT)); - tmp = __sn_readq_relaxed(&ca_base->ca_control2); - } - - return; - } - - /* - * Gart in uncached mode ... need an explicit flush. - */ - - __sn_setq_relaxed(&ca_base->ca_control2, CA_GART_FLUSH_TLB); - tmp = __sn_readq_relaxed(&ca_base->ca_control2); -} - -extern u32 tioca_gart_found; -extern struct list_head tioca_list; -extern int tioca_init_provider(void); -extern void tioca_fastwrite_enable(struct tioca_kernel *tioca_kern); -#endif /* _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H */ |