This reverts commit f191f144079b0083c6fa7d01a4acbd7263fb5032.
The AMD 751 and 761 chipsets are used on the UP1000, UP1100, and UP1500 OEM motherboards, but they neglect to do anything to make AGP work.
According to Ivan Kokshaysky: There is quite fundamental conflict between the Alpha architecture and x86 AGP implementation - Alpha is entirely cache coherent by design, while x86 AGP is not (I mean native AGP DMA transactions, not a PCI over AGP). There are no such things as non-cacheable mappings or software support for cache flushing/invalidation on Alpha, so x86 AGP code won't work on Nautilus.
So there's no point in allowing this driver to be configured on Alpha.
Signed-off-by: Matt Turner mattst88@gmail.com --- drivers/char/agp/Kconfig | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig index fcd867d..d8b1b57 100644 --- a/drivers/char/agp/Kconfig +++ b/drivers/char/agp/Kconfig @@ -50,7 +50,7 @@ config AGP_ATI
config AGP_AMD tristate "AMD Irongate, 761, and 762 chipset support" - depends on AGP && (X86_32 || ALPHA) + depends on AGP && X86_32 help This option gives you AGP support for the GLX component of X on AMD Irongate, 761, and 762 chipsets.
amd-k7-agp can't be built on Alpha anymore, so remove now unnecessary code.
Signed-off-by: Matt Turner mattst88@gmail.com --- drivers/char/agp/amd-k7-agp.c | 19 ------------------- 1 files changed, 0 insertions(+), 19 deletions(-)
diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c index b1b4362..45681c0 100644 --- a/drivers/char/agp/amd-k7-agp.c +++ b/drivers/char/agp/amd-k7-agp.c @@ -41,22 +41,8 @@ static int amd_create_page_map(struct amd_page_map *page_map) if (page_map->real == NULL) return -ENOMEM;
-#ifndef CONFIG_X86 - SetPageReserved(virt_to_page(page_map->real)); - global_cache_flush(); - page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real), - PAGE_SIZE); - if (page_map->remapped == NULL) { - ClearPageReserved(virt_to_page(page_map->real)); - free_page((unsigned long) page_map->real); - page_map->real = NULL; - return -ENOMEM; - } - global_cache_flush(); -#else set_memory_uc((unsigned long)page_map->real, 1); page_map->remapped = page_map->real; -#endif
for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) { writel(agp_bridge->scratch_page, page_map->remapped+i); @@ -68,12 +54,7 @@ static int amd_create_page_map(struct amd_page_map *page_map)
static void amd_free_page_map(struct amd_page_map *page_map) { -#ifndef CONFIG_X86 - iounmap(page_map->remapped); - ClearPageReserved(virt_to_page(page_map->real)); -#else set_memory_wb((unsigned long)page_map->real, 1); -#endif free_page((unsigned long) page_map->real); }
dri-devel@lists.freedesktop.org
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Matt Turner