Messages in this thread Patch in this message | | | Date | Thu, 17 Jul 2003 10:17:13 +0200 | From | "Marcelo E. Magallon" <> | Subject | [PATCH] [2.4.22-pre4] AGPGART for i7205/i7505 |
| |
Hi,
[ Please Cc: mmagallo@debian.org, I'm not subscribed to the list. ]
attached is a patch to add support for i7205/i7505 to the 2.4.22-pre4 kernel (it should apply to newer -pre's). I only looked at the driver in 2.5 and AFAICS this is really the only thing needed (Dave, please correct me). Alas, the NVIDIA binary-only drivers don't like it. I have tried 2.6.0-pre1 on the same machine and it doesn't work with that either. I haven't been able to test with anything else yet.
Another problem I had, in agp_find_max it reads something like:
long memory, index, result; memory = (num_physpages << PAGE_SHIFT) >> 20;
I have 4 GB of memory on this box and the function reports the maximum agp memory to be 0 MB. It's clear why, num_physpages << PAGE_SHIFT is zero in this case. Something like:
if (PAGE_SHIFT > 20) memory = num_physpages << (PAGE_SHIFT - 20) else memory = num_physpages >> (20 - PAGE_SHIFT)
should do the trick.
Marcelo diff -ruN linux-2.4.21/drivers/char/agp/agp.h linux-2.4.22-pre4+p4/drivers/char/agp/agp.h --- linux-2.4.21/drivers/char/agp/agp.h 2003-07-15 11:38:50.000000000 +0200 +++ linux-2.4.22-pre4+p4/drivers/char/agp/agp.h 2003-07-15 11:28:34.000000000 +0200 @@ -223,6 +223,12 @@ #ifndef PCI_DEVICE_ID_INTEL_860_0 #define PCI_DEVICE_ID_INTEL_860_0 0x2531 #endif +#ifndef PCI_DEVICE_ID_INTEL_7205_0 +#define PCI_DEVICE_ID_INTEL_7205_0 0x255d +#endif +#ifndef PCI_DEVICE_ID_INTEL_7505_0 +#define PCI_DEVICE_ID_INTEL_7505_0 0x2550 +#endif #ifndef PCI_DEVICE_ID_INTEL_810_DC100_0 #define PCI_DEVICE_ID_INTEL_810_DC100_0 0x7122 #endif @@ -366,6 +372,10 @@ #define INTEL_I860_MCHCFG 0x50 #define INTEL_I860_ERRSTS 0xc8 +/* intel i7505 registers */ +#define INTEL_I7505_MCHCFG 0x50 +#define INTEL_I7505_ERRSTS 0x42 + /* intel i810 registers */ #define I810_GMADDR 0x10 #define I810_MMADDR 0x14 diff -ruN linux-2.4.21/drivers/char/agp/agpgart_be.c linux-2.4.22-pre4+p4/drivers/char/agp/agpgart_be.c --- linux-2.4.21/drivers/char/agp/agpgart_be.c 2003-07-15 11:38:50.000000000 +0200 +++ linux-2.4.22-pre4+p4/drivers/char/agp/agpgart_be.c 2003-07-15 11:31:11.000000000 +0200 @@ -1817,6 +1817,37 @@ } +static int intel_7505_configure(void) +{ + u32 temp; + u16 temp2; + aper_size_info_8 *current_size; + + current_size = A_SIZE_8(agp_bridge.current_size); + + /* aperture size */ + pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE, + current_size->size_value); + + /* address to map to */ + pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp); + agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK); + + /* attbase - aperture base */ + pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE, + agp_bridge.gatt_bus_addr); + + /* agpctrl */ + pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000); + + /* mcgcfg */ + pci_read_config_word(agp_bridge.dev, INTEL_I7505_MCHCFG, &temp2); + pci_write_config_word(agp_bridge.dev, INTEL_I7505_MCHCFG, + temp2 | (1 << 9)); + return 0; +} + + static unsigned long intel_mask_memory(unsigned long addr, int type) { /* Memory type is ignored */ @@ -2126,6 +2157,38 @@ (void) pdev; /* unused */ } +static int __init intel_7505_setup (struct pci_dev *pdev) +{ + agp_bridge.masks = intel_generic_masks; + agp_bridge.aperture_sizes = (void *) intel_8xx_sizes; + agp_bridge.size_type = U8_APER_SIZE; + agp_bridge.num_aperture_sizes = 7; + agp_bridge.dev_private_data = NULL; + agp_bridge.needs_scratch_page = FALSE; + agp_bridge.configure = intel_7505_configure; + agp_bridge.fetch_size = intel_8xx_fetch_size; + agp_bridge.cleanup = intel_8xx_cleanup; + agp_bridge.tlb_flush = intel_8xx_tlbflush; + agp_bridge.mask_memory = intel_mask_memory; + agp_bridge.agp_enable = agp_generic_agp_enable; + agp_bridge.cache_flush = global_cache_flush; + agp_bridge.create_gatt_table = agp_generic_create_gatt_table; + agp_bridge.free_gatt_table = agp_generic_free_gatt_table; + agp_bridge.insert_memory = agp_generic_insert_memory; + agp_bridge.remove_memory = agp_generic_remove_memory; + agp_bridge.alloc_by_type = agp_generic_alloc_by_type; + agp_bridge.free_by_type = agp_generic_free_by_type; + agp_bridge.agp_alloc_page = agp_generic_alloc_page; + agp_bridge.agp_destroy_page = agp_generic_destroy_page; + agp_bridge.suspend = agp_generic_suspend; + agp_bridge.resume = agp_generic_resume; + agp_bridge.cant_use_aperture = 0; + + return 0; + + (void) pdev; /* unused */ +} + #endif /* CONFIG_AGP_INTEL */ #ifdef CONFIG_AGP_VIA @@ -4942,6 +5005,18 @@ "Intel", "i860", intel_860_setup }, + { PCI_DEVICE_ID_INTEL_7205_0, + PCI_VENDOR_ID_INTEL, + INTEL_I7205, + "Intel", + "i7205", + intel_7505_setup }, + { PCI_DEVICE_ID_INTEL_7505_0, + PCI_VENDOR_ID_INTEL, + INTEL_I7505, + "Intel", + "i7505", + intel_7505_setup }, { 0, PCI_VENDOR_ID_INTEL, INTEL_GENERIC, diff -ruN linux-2.4.21/include/linux/agp_backend.h linux-2.4.22-pre4+p4/include/linux/agp_backend.h --- linux-2.4.21/include/linux/agp_backend.h 2003-07-15 11:39:15.000000000 +0200 +++ linux-2.4.22-pre4+p4/include/linux/agp_backend.h 2003-07-15 11:30:11.000000000 +0200 @@ -55,6 +55,8 @@ INTEL_I855_PM, INTEL_I860, INTEL_I865_G, + INTEL_I7205, + INTEL_I7505, VIA_GENERIC, VIA_VP3, VIA_MVP3, | |