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Diffstat (limited to 'abs/core-testing/nvidia-71xx/NVIDIA_kernel-96.43.05-2290218.diff.txt')
-rw-r--r--abs/core-testing/nvidia-71xx/NVIDIA_kernel-96.43.05-2290218.diff.txt1471
1 files changed, 0 insertions, 1471 deletions
diff --git a/abs/core-testing/nvidia-71xx/NVIDIA_kernel-96.43.05-2290218.diff.txt b/abs/core-testing/nvidia-71xx/NVIDIA_kernel-96.43.05-2290218.diff.txt
deleted file mode 100644
index 0dfcfd5..0000000
--- a/abs/core-testing/nvidia-71xx/NVIDIA_kernel-96.43.05-2290218.diff.txt
+++ /dev/null
@@ -1,1471 +0,0 @@
-diff -ru usr/src/nv/Makefile.kbuild usr/src/nv.2305230/Makefile.kbuild
---- usr/src/nv/Makefile.kbuild 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/Makefile.kbuild 2008-03-18 12:55:25.461856977 -0700
-@@ -176,6 +176,7 @@
- vmap \
- signal_struct \
- agp_backend_acquire \
-+ set_pages_uc \
- change_page_attr \
- pci_get_class \
- sysctl_max_map_count \
-diff -ru usr/src/nv/conftest.sh usr/src/nv.2305230/conftest.sh
---- usr/src/nv/conftest.sh 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/conftest.sh 2008-03-18 12:55:28.782046180 -0700
-@@ -100,6 +100,32 @@
- fi
- ;;
-
-+ set_pages_uc)
-+ #
-+ # Determine if the set_pages_uc() function is present.
-+ #
-+ echo "#include <linux/autoconf.h>
-+ #include <asm/cacheflush.h>
-+ void conftest_set_pages_uc(void) {
-+ set_pages_uc();
-+ }" > conftest$$.c
-+
-+ $CC $CFLAGS -c conftest$$.c > /dev/null 2>&1
-+ rm -f conftest$$.c
-+
-+ if [ -f conftest$$.o ]; then
-+ rm -f conftest$$.o
-+ echo "#undef NV_SET_PAGES_UC_PRESENT" >> conftest.h
-+ return
-+ else
-+ echo "#ifdef NV_CHANGE_PAGE_ATTR_PRESENT" >> conftest.h
-+ echo "#undef NV_CHANGE_PAGE_ATTR_PRESENT" >> conftest.h
-+ echo "#endif" >> conftest.h
-+ echo "#define NV_SET_PAGES_UC_PRESENT" >> conftest.h
-+ return
-+ fi
-+ ;;
-+
- change_page_attr)
- #
- # Determine if the change_page_attr() function is
-@@ -124,7 +150,9 @@
- rm -f conftest$$.o
- return
- else
-+ echo "#ifndef NV_SET_PAGES_UC_PRESENT" >> conftest.h
- echo "#define NV_CHANGE_PAGE_ATTR_PRESENT" >> conftest.h
-+ echo "#endif" >> conftest.h
- return
- fi
- ;;
-@@ -501,6 +529,8 @@
- return
- fi
-
-+ rm -f conftest$$.o
-+
- echo "#include <linux/autoconf.h>
- #include <linux/interrupt.h>
- irq_handler_t conftest_isr;
-diff -ru usr/src/nv/nv-linux.h usr/src/nv.2305230/nv-linux.h
---- usr/src/nv/nv-linux.h 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/nv-linux.h 2008-03-18 12:57:26.340745475 -0700
-@@ -19,8 +19,8 @@
- #include <linux/utsname.h>
-
-
--#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 0)
--# error This driver does not support pre-2.4 kernels!
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 7)
-+# error This driver does not support 2.4 kernels older than 2.4.7!
- #elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
- # define KERNEL_2_4
- #elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0)
-@@ -51,6 +51,10 @@
- #include <linux/modversions.h>
- #endif
-
-+#if defined(KERNEL_2_4) && !defined(EXPORT_SYMTAB)
-+#define EXPORT_SYMTAB
-+#endif
-+
- #include <linux/kernel.h>
- #include <linux/module.h>
-
-@@ -98,6 +102,7 @@
-
- #include <linux/spinlock.h>
- #include <asm/semaphore.h>
-+#include <linux/completion.h>
- #include <linux/highmem.h>
-
- #ifdef CONFIG_PROC_FS
-@@ -118,8 +123,12 @@
- #endif
-
- #if defined(CONFIG_KGDB)
-+#if defined(NV_OLD_MM_KGDB_BREAKPOINT_PRESENT)
-+#include <asm/kgdb.h>
-+#else
- #include <linux/kgdb.h>
- #endif
-+#endif
-
- #if defined (CONFIG_AGP) || defined (CONFIG_AGP_MODULE)
- #define AGPGART
-@@ -516,19 +525,16 @@
- #define NV_KMEM_CACHE_ALLOC(ptr, kmem_cache, type) \
- { \
- (ptr) = kmem_cache_alloc(kmem_cache, GFP_KERNEL); \
-- KM_ALLOC_RECORD(ptr, sizeof(type), "km_cache_alloc"); \
- }
-
- #define NV_KMEM_CACHE_FREE(ptr, type, kmem_cache) \
- { \
-- KM_FREE_RECORD(ptr, sizeof(type), "km_cache_free"); \
- kmem_cache_free(kmem_cache, ptr); \
- }
-
--#if defined(NV_SG_MAP_BUFFERS) /* Linux/x86-64, only */
- #if defined(NV_VMAP_PRESENT)
- #if (NV_VMAP_ARGUMENT_COUNT == 2)
--#define NV_VMAP(ptr, pages, count, cached) \
-+#define NV_VMAP_KERNEL(ptr, pages, count, prot) \
- { \
- (ptr) = (unsigned long)vmap(pages, count); \
- VM_ALLOC_RECORD((void *)ptr, (count) * PAGE_SIZE, "vm_vmap"); \
-@@ -537,26 +543,35 @@
- #ifndef VM_MAP
- #define VM_MAP 0
- #endif
--#define NV_VMAP(ptr, pages, count, cached) \
-+#define NV_VMAP_KERNEL(ptr, pages, count, prot) \
- { \
-- pgprot_t __prot = (cached) ? PAGE_KERNEL : PAGE_KERNEL_NOCACHE; \
-- (ptr) = (unsigned long)vmap(pages, count, VM_MAP, __prot); \
-+ (ptr) = (unsigned long)vmap(pages, count, VM_MAP, prot); \
- VM_ALLOC_RECORD((void *)ptr, (count) * PAGE_SIZE, "vm_vmap"); \
- }
- #else
- #error "NV_VMAP_ARGUMENT_COUNT value unrecognized!"
- #endif
- #else
-+#if defined(NV_SG_MAP_BUFFERS)
- #error "NV_VMAP() undefined (vmap() unavailable)!"
-+#endif
- #endif /* NV_VMAP_PRESENT */
-
--#define NV_VUNMAP(ptr, count) \
-+#define NV_VUNMAP_KERNEL(ptr, count) \
- { \
-- VM_FREE_RECORD((void *)ptr, (count) * PAGE_SIZE, "vm_vmap"); \
-+ VM_FREE_RECORD((void *)ptr, (count) * PAGE_SIZE, "vm_vunmap"); \
- vunmap((void *)(ptr)); \
- }
-
--#endif /* NV_SG_MAP_BUFFERS */
-+#define NV_VMAP(addr, pages, count, cached) \
-+ { \
-+ pgprot_t __prot = (cached) ? PAGE_KERNEL : PAGE_KERNEL_NOCACHE; \
-+ void *__ptr = nv_vmap(pages, count, __prot); \
-+ (addr) = (unsigned long)__ptr; \
-+ }
-+
-+#define NV_VUNMAP(addr, count) nv_vunmap((void *)addr, count)
-+
-
- #endif /* !defined NVWATCH */
-
-@@ -764,9 +779,10 @@
-
- #define NV_PGD_OFFSET(address, kernel, mm) \
- ({ \
-+ struct mm_struct *__mm = (mm); \
- pgd_t *__pgd; \
- if (!kernel) \
-- __pgd = pgd_offset(mm, address); \
-+ __pgd = pgd_offset(__mm, address); \
- else \
- __pgd = pgd_offset_k(address); \
- __pgd; \
-@@ -968,9 +984,7 @@
- #define NV_ALLOC_TYPE_PCI (1<<0)
- #define NV_ALLOC_TYPE_AGP (1<<1)
- #define NV_ALLOC_TYPE_CONTIG (1<<2)
--#define NV_ALLOC_TYPE_KERNEL (1<<3)
--#define NV_ALLOC_TYPE_VMALLOC (1<<4)
--#define NV_ALLOC_TYPE_VMAP (1<<5)
-+#define NV_ALLOC_TYPE_VMAP (1<<3)
-
- #define NV_ALLOC_MAPPING_SHIFT 16
- #define NV_ALLOC_MAPPING(flags) (((flags)>>NV_ALLOC_MAPPING_SHIFT)&0xff)
-@@ -980,7 +994,6 @@
-
- #define NV_ALLOC_MAPPING_AGP(flags) ((flags) & NV_ALLOC_TYPE_AGP)
- #define NV_ALLOC_MAPPING_CONTIG(flags) ((flags) & NV_ALLOC_TYPE_CONTIG)
--#define NV_ALLOC_MAPPING_VMALLOC(flags) ((flags) & NV_ALLOC_TYPE_VMALLOC)
- #define NV_ALLOC_MAPPING_VMAP(flags) ((flags) & NV_ALLOC_TYPE_VMAP)
-
- static inline U032 nv_alloc_init_flags(int cached, int agp, int contig, int kernel)
-@@ -988,12 +1001,7 @@
- U032 flags = NV_ALLOC_ENC_MAPPING(cached);
- if (agp) flags |= NV_ALLOC_TYPE_AGP;
- else flags |= NV_ALLOC_TYPE_PCI;
-- if (kernel) flags |= NV_ALLOC_TYPE_KERNEL;
--#if defined(NV_SG_MAP_BUFFERS)
- if (kernel && !contig) flags |= NV_ALLOC_TYPE_VMAP;
--#else
-- if (kernel && !contig) flags |= NV_ALLOC_TYPE_VMALLOC;
--#endif
- if (contig && !agp) flags |= NV_ALLOC_TYPE_CONTIG;
- return flags;
- }
-@@ -1067,21 +1075,24 @@
- #define NV_ATOMIC_DEC_AND_TEST(data) atomic_dec_and_test(&(data))
- #define NV_ATOMIC_READ(data) atomic_read(&(data))
-
-+extern int nv_update_memory_types;
-+
- /*
-- * a BUG() is triggered on early 2.6 x86_64 kernels. the underlying
-- * problem actually exists on many architectures and kernels, but
-- * these are the only kernels that check the condition and trigger
-- * a BUG(). note that this is a problem of the core kernel, not an
-- * nvidia bug (and can still be triggered by agpgart). let's avoid
-- * change_page_attr on those kernels.
-+ * Using change_page_attr() on early Linux/x86-64 2.6 kernels may
-+ * result in a BUG() being triggered. The underlying problem
-+ * actually exists on multiple architectures and kernels, but only
-+ * the above check for the condition and trigger a BUG().
-+ *
-+ * Note that this is a due to a bug in the Linux kernel, not an
-+ * NVIDIA driver bug (it can also be triggered by AGPGART).
-+ *
-+ * We therefore need to determine at runtime if change_page_attr()
-+ * can be used safely on these kernels.
- */
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
--extern int nv_use_cpa;
--
--#if defined(NVCPU_X86_64) && !defined(KERNEL_2_4) && \
-- (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 11))
--#define NV_CHANGE_PAGE_ATTR_BUG_PRESENT 1
--#endif
-+#if defined(NV_CHANGE_PAGE_ATTR_PRESENT) && defined(NVCPU_X86_64) && \
-+ !defined(KERNEL_2_4) && \
-+ (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 11))
-+#define NV_CHANGE_PAGE_ATTR_BUG_PRESENT
- #endif
-
- #if defined(NVCPU_X86) || defined(NVCPU_X86_64)
-@@ -1093,7 +1104,7 @@
- *
- * We need to be careful to mask out _PAGE_NX when the host system
- * doesn't support this feature or when it's disabled: the kernel
-- * may not do this in its implementation of the change_page_attr()
-+ * may not do this in its implementation of the change_page_attr()
- * interface.
- */
- #ifndef X86_FEATURE_NX
-diff -ru usr/src/nv/nv-vm.c usr/src/nv.2305230/nv-vm.c
---- usr/src/nv/nv-vm.c 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/nv-vm.c 2008-03-18 12:55:58.755754293 -0700
-@@ -43,42 +43,40 @@
- }
- #endif
-
--/*
-- * AMD Athlon processors expose a subtle bug in the Linux
-- * kernel, that may lead to AGP memory corruption. Recent
-- * kernel versions had a workaround for this problem, but
-- * 2.4.20 is the first kernel to address it properly. The
-- * page_attr API provides the means to solve the problem.
-- */
--
- static inline void nv_set_page_attrib_uncached(nv_pte_t *page_ptr)
- {
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-- if (nv_use_cpa)
-+ if (nv_update_memory_types)
- {
-- struct page *page = virt_to_page(__va(page_ptr->phys_addr));
-+#if defined(NV_SET_PAGES_UC_PRESENT)
-+ struct page *page = NV_GET_PAGE_STRUCT(page_ptr->phys_addr);
-+ set_pages_uc(page, 1);
-+#elif defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-+ struct page *page = NV_GET_PAGE_STRUCT(page_ptr->phys_addr);
- pgprot_t prot = PAGE_KERNEL_NOCACHE;
- #if defined(NVCPU_X86) || defined(NVCPU_X86_64)
- pgprot_val(prot) &= __nv_supported_pte_mask;
- #endif
- change_page_attr(page, 1, prot);
-- }
- #endif
-+ }
- }
-
- static inline void nv_set_page_attrib_cached(nv_pte_t *page_ptr)
- {
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-- if (nv_use_cpa)
-+ if (nv_update_memory_types)
- {
-- struct page *page = virt_to_page(__va(page_ptr->phys_addr));
-+#if defined(NV_SET_PAGES_UC_PRESENT)
-+ struct page *page = NV_GET_PAGE_STRUCT(page_ptr->phys_addr);
-+ set_pages_wb(page, 1);
-+#elif defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-+ struct page *page = NV_GET_PAGE_STRUCT(page_ptr->phys_addr);
- pgprot_t prot = PAGE_KERNEL;
- #if defined(NVCPU_X86) || defined(NVCPU_X86_64)
- pgprot_val(prot) &= __nv_supported_pte_mask;
- #endif
- change_page_attr(page, 1, prot);
-+#endif
- }
--#endif /* NV_CHANGE_PAGE_ATTR_PRESENT */
- }
-
- static inline void nv_lock_page(nv_pte_t *page_ptr)
-@@ -360,8 +358,11 @@
- #if defined(NV_CPA_NEEDS_FLUSHING)
- nv_execute_on_all_cpus(cache_flush, NULL);
- #endif
-+#if (defined(NVCPU_X86) || defined(NVCPU_X86_64)) && \
-+ defined(NV_CHANGE_PAGE_ATTR_PRESENT)
- global_flush_tlb();
- #endif
-+#endif
- }
-
- /*
-@@ -409,11 +410,11 @@
- nv_pte_t *page_ptr = *at->page_table;
- unsigned int i, j, gfp_mask;
- unsigned long virt_addr = 0, phys_addr;
-+ struct page **pages = 0;
- #if defined(NV_SG_MAP_BUFFERS)
- int ret = -1;
- nv_linux_state_t *nvl = NV_GET_NVL_FROM_NV_STATE(nv);
- struct pci_dev *dev = nvl->dev;
-- struct page **pages = 0;
- #endif
-
- nv_printf(NV_DBG_MEMINFO, "NVRM: VM: nv_vm_malloc_pages: %d pages\n",
-@@ -462,22 +463,7 @@
- }
- #endif
- }
-- else if (NV_ALLOC_MAPPING_VMALLOC(at->flags))
-- {
-- void *virt_kptr = NULL;
-- at->size = at->num_pages * PAGE_SIZE;
-- nv_printf(NV_DBG_MEMINFO, "NVRM: VM: vmalloc, size 0x%x\n", at->size);
-- NV_VMALLOC(virt_kptr, at->size, NV_ALLOC_MAPPING_CACHED(at->flags));
-- virt_addr = (unsigned long) virt_kptr;
-- if (virt_addr == 0)
-- {
-- nv_printf(NV_DBG_ERRORS,
-- "NVRM: nv_vm_malloc failed to allocate vmalloc memory\n");
-- return -1;
-- }
-- }
-
--#if defined(NV_SG_MAP_BUFFERS)
- if (NV_ALLOC_MAPPING_VMAP(at->flags))
- {
- NV_KMALLOC(pages, sizeof(struct page *) * at->num_pages);
-@@ -488,11 +474,10 @@
- return -1;
- }
- }
--#endif
-
- for (i = 0; i < at->num_pages; i++)
- {
-- if (!NV_ALLOC_MAPPING_CONTIG(at->flags) && !NV_ALLOC_MAPPING_VMALLOC(at->flags))
-+ if (!NV_ALLOC_MAPPING_CONTIG(at->flags))
- {
- NV_GET_FREE_PAGES(virt_addr, 0, gfp_mask);
- if (virt_addr == 0)
-@@ -553,10 +538,10 @@
- }
- }
- nv_sg_load(&page_ptr->sg_list, page_ptr);
-+#endif
-
- if (NV_ALLOC_MAPPING_VMAP(at->flags))
- pages[i] = NV_GET_PAGE_STRUCT(page_ptr->phys_addr);
--#endif
-
- if (!NV_ALLOC_MAPPING_CACHED(at->flags))
- nv_set_page_attrib_uncached(page_ptr);
-@@ -565,41 +550,21 @@
- virt_addr += PAGE_SIZE;
- }
-
--#if defined(NV_SG_MAP_BUFFERS)
- if (NV_ALLOC_MAPPING_VMAP(at->flags))
- {
- NV_VMAP(virt_addr, pages, at->num_pages, NV_ALLOC_MAPPING_CACHED(at->flags));
--#if defined(KERNEL_2_4)
-- if (virt_addr != 0)
-- {
-- unsigned int i;
-- /*
-- * XXX Linux 2.4's vmap() increments the pages' reference counts
-- * in preparation for vfree(); the latter skips the calls to
-- * __free_page() if the pages are marked reserved, however, so
-- * that the underlying memory is effectively leaked when we free
-- * it later. Decrement the count here to avoid this leak.
-- */
-- for (i = 0; i < at->num_pages; i++)
-- {
-- if (PageReserved(pages[i]))
-- atomic_dec(&pages[i]->count);
-- }
-- }
--#endif
-- NV_KFREE((void *)pages, sizeof(struct page *) * at->num_pages);
- if (virt_addr == 0)
- {
- nv_printf(NV_DBG_ERRORS,
- "NVRM: VM: nv_vm_malloc_pages: failed to vmap pages\n");
- goto failed;
- }
-+ NV_KFREE((void *)pages, sizeof(struct page *) * at->num_pages);
- for (i = 0; i < at->num_pages; i++)
- {
- at->page_table[i]->virt_addr = virt_addr + i * PAGE_SIZE;
- }
- }
--#endif /* NV_SG_MAP_BUFFERS */
-
- nv_vm_list_page_count(at->page_table, at->num_pages);
-
-@@ -624,7 +589,7 @@
- nv_sg_unmap_buffer(dev, &page_ptr->sg_list, page_ptr);
- #endif
- nv_unlock_page(page_ptr);
-- if (!NV_ALLOC_MAPPING_CONTIG(at->flags) && !NV_ALLOC_MAPPING_VMALLOC(at->flags))
-+ if (!NV_ALLOC_MAPPING_CONTIG(at->flags))
- NV_FREE_PAGES(page_ptr->virt_addr, 0);
- }
- }
-@@ -638,16 +603,9 @@
- #endif
- NV_FREE_PAGES(page_ptr->virt_addr, at->order);
- }
-- else if (NV_ALLOC_MAPPING_VMALLOC(at->flags))
-- {
-- page_ptr = *at->page_table;
-- NV_VFREE((void *) page_ptr->virt_addr, at->size);
-- }
-
--#if defined(NV_SG_MAP_BUFFERS)
- if (NV_ALLOC_MAPPING_VMAP(at->flags) && pages != 0)
-- NV_VFREE((void *)pages, sizeof(struct page *) * at->num_pages);
--#endif
-+ NV_KFREE((void *)pages, sizeof(struct page *) * at->num_pages);
-
- return -1;
- }
-@@ -674,19 +632,17 @@
- }
- nv_vm_list_page_count(at->page_table, at->num_pages);
-
--#if defined(NV_SG_MAP_BUFFERS)
- if (NV_ALLOC_MAPPING_VMAP(at->flags))
- NV_VUNMAP((void *)at->page_table[0]->virt_addr, at->num_pages); // undo vmap()
--#endif
-
- for (i = 0; i < at->num_pages; i++)
- {
- page_ptr = at->page_table[i];
- if (!NV_ALLOC_MAPPING_CACHED(at->flags))
- nv_set_page_attrib_cached(page_ptr);
--#if defined(NV_SG_MAP_BUFFERS)
- if (NV_ALLOC_MAPPING_VMAP(at->flags))
- page_ptr->virt_addr = (unsigned long) __va(page_ptr->phys_addr);
-+#if defined(NV_SG_MAP_BUFFERS)
- if (!NV_ALLOC_MAPPING_CONTIG(at->flags))
- nv_sg_unmap_buffer(dev, &page_ptr->sg_list, page_ptr);
- #endif
-@@ -701,7 +657,7 @@
- }
- }
- nv_unlock_page(page_ptr);
-- if (!NV_ALLOC_MAPPING_CONTIG(at->flags) && !NV_ALLOC_MAPPING_VMALLOC(at->flags))
-+ if (!NV_ALLOC_MAPPING_CONTIG(at->flags))
- NV_FREE_PAGES(page_ptr->virt_addr, 0);
- }
- nv_flush_caches();
-@@ -714,9 +670,136 @@
- #endif
- NV_FREE_PAGES(page_ptr->virt_addr, at->order);
- }
-- else if (NV_ALLOC_MAPPING_VMALLOC(at->flags))
-+}
-+
-+#if defined(NV_VMAP_PRESENT) && defined(KERNEL_2_4) && defined(NVCPU_X86)
-+static unsigned long
-+nv_vmap_vmalloc(
-+ int count,
-+ struct page **pages,
-+ pgprot_t prot
-+)
-+{
-+ void *virt_addr = NULL;
-+ unsigned int i, size = count * PAGE_SIZE;
-+
-+ NV_VMALLOC(virt_addr, size, TRUE);
-+ if (virt_addr == NULL)
-+ {
-+ nv_printf(NV_DBG_ERRORS,
-+ "NVRM: vmalloc() failed to allocate vmap() scratch pages!\n");
-+ return 0;
-+ }
-+
-+ for (i = 0; i < (unsigned int)count; i++)
- {
-- page_ptr = *at->page_table;
-- NV_VFREE((void *) page_ptr->virt_addr, at->size);
-+ pgd_t *pgd = NULL;
-+ pmd_t *pmd = NULL;
-+ pte_t *pte = NULL;
-+ unsigned long address;
-+ struct page *page;
-+
-+ address = (unsigned long)virt_addr + i * PAGE_SIZE;
-+
-+ pgd = NV_PGD_OFFSET(address, 1, NULL);
-+ if (!NV_PGD_PRESENT(pgd))
-+ goto failed;
-+
-+ pmd = NV_PMD_OFFSET(address, pgd);
-+ if (!NV_PMD_PRESENT(pmd))
-+ goto failed;
-+
-+ pte = NV_PTE_OFFSET(address, pmd);
-+ if (!NV_PTE_PRESENT(pte))
-+ goto failed;
-+
-+ page = NV_GET_PAGE_STRUCT(pte_val(*pte) & PAGE_MASK);
-+ get_page(pages[i]);
-+ set_pte(pte, mk_pte(pages[i], prot));
-+ put_page(page);
-+ NV_PTE_UNMAP(pte);
-+ }
-+ nv_flush_caches();
-+
-+ return (unsigned long)virt_addr;
-+
-+failed:
-+ NV_VFREE(virt_addr, size);
-+
-+ return 0;
-+}
-+
-+static void
-+nv_vunmap_vmalloc(
-+ void *address,
-+ int count
-+)
-+{
-+ NV_VFREE(address, count * PAGE_SIZE);
-+}
-+#endif /* NV_VMAP_PRESENT && KERNEL_2_4 && NVCPU_X86 */
-+
-+void *nv_vmap(
-+ struct page **pages,
-+ int count,
-+ pgprot_t prot
-+)
-+{
-+ unsigned long virt_addr = 0;
-+#if defined(NV_VMAP_PRESENT)
-+#if defined(KERNEL_2_4) && defined(NVCPU_X86)
-+ /*
-+ * XXX Linux 2.4's vmap() checks the requested mapping's size against
-+ * the value of (max_mapnr << PAGESHIFT); since 'map_nr' is a 32-bit
-+ * symbol, the checks fails given enough physical memory. We can't solve
-+ * this problem by adjusting the value of 'map_nr', but we can avoid
-+ * vmap() by going through vmalloc().
-+ */
-+ if (max_mapnr >= 0x100000)
-+ virt_addr = nv_vmap_vmalloc(count, pages, prot);
-+ else
-+#endif
-+ NV_VMAP_KERNEL(virt_addr, pages, count, prot);
-+#if defined(KERNEL_2_4)
-+ if (virt_addr)
-+ {
-+ int i;
-+ /*
-+ * XXX Linux 2.4's vmap() increments the pages' reference counts
-+ * in preparation for vfree(); the latter skips the calls to
-+ * __free_page() if the pages are marked reserved, however, so
-+ * that the underlying memory is effectively leaked when we free
-+ * it later. Decrement the count here to avoid this leak.
-+ */
-+ for (i = 0; i < count; i++)
-+ {
-+ if (PageReserved(pages[i]))
-+ atomic_dec(&pages[i]->count);
-+ }
- }
-+#endif
-+#endif /* NV_VMAP_PRESENT */
-+ return (void *)virt_addr;
-+}
-+
-+void nv_vunmap(
-+ void *address,
-+ int count
-+)
-+{
-+#if defined(NV_VMAP_PRESENT)
-+#if defined(KERNEL_2_4) && defined(NVCPU_X86)
-+ /*
-+ * XXX Linux 2.4's vmap() checks the requested mapping's size against
-+ * the value of (max_mapnr << PAGESHIFT); since 'map_nr' is a 32-bit
-+ * symbol, the checks fails given enough physical memory. We can't solve
-+ * this problem by adjusting the value of 'map_nr', but we can avoid
-+ * vmap() by going through vmalloc().
-+ */
-+ if (max_mapnr >= 0x100000)
-+ nv_vunmap_vmalloc(address, count);
-+ else
-+#endif
-+ NV_VUNMAP_KERNEL(address, count);
-+#endif /* NV_VMAP_PRESENT */
- }
-diff -ru usr/src/nv/nv-vm.h usr/src/nv.2305230/nv-vm.h
---- usr/src/nv/nv-vm.h 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/nv-vm.h 2008-03-18 12:55:54.643519951 -0700
-@@ -11,6 +11,9 @@
- #ifndef _NV_VM_H_
- #define _NV_VM_H_
-
-+void * nv_vmap(struct page **, int, pgprot_t);
-+void nv_vunmap(void *, int);
-+
- int nv_vm_malloc_pages(nv_state_t *, nv_alloc_t *);
- void nv_vm_free_pages(nv_state_t *, nv_alloc_t *);
-
-diff -ru usr/src/nv/nv.c usr/src/nv.2305230/nv.c
---- usr/src/nv/nv.c 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/nv.c 2008-03-18 12:56:01.123889244 -0700
-@@ -97,9 +97,7 @@
- unsigned int nv_remap_limit;
- #endif
-
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
--int nv_use_cpa = 1;
--#endif
-+int nv_update_memory_types = 1;
-
- static void *nv_pte_t_cache = NULL;
-
-@@ -850,16 +848,13 @@
-
- for (i = 0; i < 4; i++)
- {
-- if (NV_PAT_ENTRY(pat1, i) == 1)
-+ if ((i != 1) && NV_PAT_ENTRY(pat1, i) == 1)
- {
- nv_printf(NV_DBG_ERRORS, "NVRM: PAT index %d already configured for Write-Combining!\n", i);
- nv_printf(NV_DBG_ERRORS, "NVRM: Aborting, due to PAT already being configured\n");
- return 0;
- }
-- }
-
-- for (i = 0; i < 4; i++)
-- {
- if (NV_PAT_ENTRY(pat2, i) == 1)
- {
- nv_printf(NV_DBG_ERRORS, "NVRM: PAT index %d already configured for Write-Combining!\n", i + 4);
-@@ -969,30 +964,26 @@
- #endif /* defined(NV_BUILD_NV_PAT_SUPPORT) */
- }
-
--
- #if defined(NV_CHANGE_PAGE_ATTR_BUG_PRESENT)
--
--/* nv_verify_cpa_interface - determine if the change_page_attr bug is fixed
-- * in this kernel.
-+/*
-+ * nv_verify_cpa_interface() - determine if the change_page_attr() large page
-+ * management accounting bug known to exist in early Linux/x86-64 kernels
-+ * is present in this kernel.
- *
-- * there's really not a good way to determine if change_page_attr is fixed.
-- * we can't really use cpa on 2.6 x86_64 kernels < 2.6.11, as if we run into
-- * the accounting bug, the kernel will throw a BUG. this isn't 100% accurate,
-- * as it doesn't throw a bug until we try to restore the caching attributes
-- * of the page. so if we can track down a 4M allocation, we can mark it
-- * uncached and see if the accounting was done correctly.
-- *
-- * this is a little ugly, but the most accurate approach to determining if
-- * this kernel is good.
-+ * There's really no good way to determine if change_page_attr() is working
-+ * correctly. We can't reliably use change_page_attr() on Linux/x86-64 2.6
-+ * kernels < 2.6.11: if we run into the accounting bug, the Linux kernel will
-+ * trigger a BUG() if we attempt to restore the WB memory type of a page
-+ * originally part of a large page.
- *
-- * why do we even bother? some distributions have back-ported the cpa fix to
-- * kernels < 2.6.11. we want to use change_page_attr to avoid random corruption
-- * and hangs, but need to make sure it's safe to do so.
-+ * So if we can successfully allocate such a page, change its memory type to
-+ * UC and check if the accounting was done correctly, we can determine if
-+ * the change_page_attr() interface can be used safely.
- *
-- * return values:
-- * 0 - test passed, interface works
-- * 1 - test failed, status unclear
-- * -1 - test failed, interface broken
-+ * Return values:
-+ * 0 - test passed, the change_page_attr() interface works
-+ * 1 - test failed, the status is unclear
-+ * -1 - test failed, the change_page_attr() interface is broken
- */
-
- static inline pte_t *check_large_page(unsigned long vaddr)
-@@ -1000,7 +991,7 @@
- pgd_t *pgd = NULL;
- pmd_t *pmd = NULL;
-
-- pgd = NV_PGD_OFFSET(vaddr, 1, &init_mm);
-+ pgd = NV_PGD_OFFSET(vaddr, 1, NULL);
- if (!NV_PGD_PRESENT(pgd))
- return NULL;
-
-@@ -1110,35 +1101,42 @@
-
- return 1;
- }
--
- #endif /* defined(NV_CHANGE_PAGE_ATTR_BUG_PRESENT) */
-
--
--// verify that the kernel's mapping matches the requested type
--// this is to protect against accidental cache aliasing problems
-+/*
-+ * nv_verify_page_mappings() - verify that the kernel mapping of the specified
-+ * page matches the specified type. This is to help detect bugs in the Linux
-+ * kernel's change_page_attr() interface, early.
-+ *
-+ * This function relies on the ability to perform kernel virtul address to PFN
-+ * translations and therefore on 'init_mm'. Unfortunately, the latter is no
-+ * longer exported in recent Linux/x86 2.6 kernels. The export was removed at
-+ * roughtly the same time as the set_pages_{uc,wb}() change_page_attr()
-+ * replacement interfaces were introduced; hopefully, it will be sufficient to
-+ * check for their presence.
-+ */
- int nv_verify_page_mappings(
- nv_pte_t *page_ptr,
- unsigned int cachetype
- )
- {
-- struct mm_struct *mm;
-+#if defined(NV_CHANGE_PAGE_ATTR_PRESENT) || \
-+ (defined(NV_SET_PAGES_UC_PRESENT) && !defined(NVCPU_X86))
-+ unsigned long retval = -1;
-+#if defined(NVCPU_X86) || defined(NVCPU_X86_64)
- pgd_t *pgd = NULL;
- pmd_t *pmd = NULL;
- pte_t *pte = NULL;
-- unsigned long retval = -1;
- unsigned int flags, expected;
- unsigned long address;
- static int count = 0;
-
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-- if (!nv_use_cpa)
-+ if (!nv_update_memory_types)
- return 0;
--#endif
-
- address = (unsigned long)__va(page_ptr->phys_addr);
-- mm = &init_mm; // always a kernel page
-
-- pgd = NV_PGD_OFFSET(address, 1, mm);
-+ pgd = NV_PGD_OFFSET(address, 1, NULL);
- if (!NV_PGD_PRESENT(pgd))
- {
- nv_printf(NV_DBG_ERRORS, "NVRM: pgd not present for addr 0x%lx\n", address);
-@@ -1204,7 +1202,11 @@
- }
-
- failed:
-+#endif /* defined(NVCPU_X86) || defined(NVCPU_X86_64) */
- return retval;
-+#else
-+ return 0;
-+#endif
- }
-
- #if defined(NV_BUILD_NV_PAT_SUPPORT) && defined(CONFIG_HOTPLUG_CPU)
-@@ -1250,7 +1252,8 @@
- static int __init nvidia_init_module(void)
- {
- int rc;
-- U032 i, count;
-+ U032 i, count, data;
-+ nv_state_t *nv = NV_STATE_PTR(&nv_ctl_device);
-
- #if defined(VM_CHECKER)
- nv_init_lock(vm_lock);
-@@ -1266,11 +1269,18 @@
- return -ENODEV;
- }
-
-+ if (!rm_init_rm())
-+ {
-+ nv_printf(NV_DBG_ERRORS, "NVRM: rm_init_rm() failed!\n");
-+ return -EIO;
-+ }
-+
- memset(nv_linux_devices, 0, sizeof(nv_linux_devices));
-
- if (pci_register_driver(&nv_pci_driver) < 0)
- {
- pci_unregister_driver(&nv_pci_driver); // XXX ???
-+ rm_shutdown_rm();
- nv_printf(NV_DBG_ERRORS, "NVRM: No NVIDIA graphics adapter found!\n");
- return -ENODEV;
- }
-@@ -1293,6 +1303,7 @@
- if (num_probed_nv_devices == 0)
- {
- pci_unregister_driver(&nv_pci_driver);
-+ rm_shutdown_rm();
- nv_printf(NV_DBG_ERRORS, "NVRM: No NVIDIA graphics adapter probed!\n");
- return -ENODEV;
- }
-@@ -1307,6 +1318,7 @@
- if (num_nv_devices == 0)
- {
- pci_unregister_driver(&nv_pci_driver);
-+ rm_shutdown_rm();
- nv_printf(NV_DBG_ERRORS,
- "NVRM: None of the NVIDIA graphics adapters were initialized!\n");
- return -ENODEV;
-@@ -1317,8 +1329,9 @@
- rc = register_chrdev(nv_major, "nvidia", &nv_fops);
- if (rc < 0)
- {
-- nv_printf(NV_DBG_ERRORS, "NVRM: register chrdev failed\n");
- pci_unregister_driver(&nv_pci_driver);
-+ rm_shutdown_rm();
-+ nv_printf(NV_DBG_ERRORS, "NVRM: register_chrdev() failed!\n");
- return rc;
- }
-
-@@ -1367,14 +1380,6 @@
- }
- #endif
-
-- // Init the resource manager
-- if (!rm_init_rm())
-- {
-- nv_printf(NV_DBG_ERRORS, "NVRM: rm_init_rm() failed\n");
-- rc = -EIO;
-- goto failed;
-- }
--
- #if defined(NV_SG_MAP_BUFFERS)
- rm_read_registry_dword(NV_STATE_PTR(&nv_ctl_device), "NVreg", "RemapLimit", &nv_remap_limit);
-
-@@ -1407,48 +1412,41 @@
- /* create /proc/driver/nvidia */
- nvos_proc_create();
-
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-+ /*
-+ * Give users an opportunity to disable the driver's use of
-+ * the change_page_attr() and set_pages_{uc,wb}() kernel
-+ * interfaces.
-+ */
-+ rc = rm_read_registry_dword(nv, "NVreg", "UpdateMemoryTypes", &data);
-+ if ((rc == 0) && ((int)data != ~0))
- {
-- int data;
--
-- // allow the user to override us with a registry key
-- rc = rm_read_registry_dword(NV_STATE_PTR(&nv_ctl_device), "NVreg", "UseCPA", &data);
-- if ((rc == 0) && (data != -1))
-- {
-- nv_use_cpa = data;
-- }
-+ nv_update_memory_types = data;
-+ }
- #if defined(NV_CHANGE_PAGE_ATTR_BUG_PRESENT)
-- else
-+ /*
-+ * Unless we explicitely detect that the change_page_attr()
-+ * inteface is fixed, disable usage of the interface on
-+ * this kernel. Notify the user of this problem using the
-+ * driver's /proc warnings interface (read by the installer
-+ * and the bug report script).
-+ */
-+ else
-+ {
-+ rc = nv_verify_cpa_interface();
-+ if (rc < 0)
- {
-- /*
-- * Unless we explicitely detect that the change_page_attr()
-- * inteface is fixed, disable usage of the interface on
-- * this kernel. Notify the user of this problem using the
-- * driver's /proc warnings interface (read by the installer
-- * and the bug report script).
-- */
-- rc = nv_verify_cpa_interface();
-- if (rc < 0)
-- {
-- nv_prints(NV_DBG_ERRORS, __cpgattr_warning);
-- nvos_proc_add_warning_file("change_page_attr", __cpgattr_warning);
-- nv_use_cpa = 0;
-- }
-- else if (rc != 0)
-- {
-- nv_prints(NV_DBG_ERRORS, __cpgattr_warning_2);
-- nvos_proc_add_warning_file("change_page_attr", __cpgattr_warning_2);
-- nv_use_cpa = 0;
-- }
-+ nv_prints(NV_DBG_ERRORS, __cpgattr_warning);
-+ nvos_proc_add_warning_file("change_page_attr", __cpgattr_warning);
-+ nv_update_memory_types = 0;
-+ }
-+ else if (rc != 0)
-+ {
-+ nv_prints(NV_DBG_ERRORS, __cpgattr_warning_2);
-+ nvos_proc_add_warning_file("change_page_attr", __cpgattr_warning_2);
-+ nv_update_memory_types = 0;
- }
--#endif
- }
--#endif
--
--
--#if defined(DEBUG)
-- inter_module_register("nv_linux_devices", THIS_MODULE, nv_linux_devices);
--#endif
-+#endif /* defined(NV_CHANGE_PAGE_ATTR_BUG_PRESENT) */
-
- #if defined(NVCPU_X86_64) && defined(CONFIG_IA32_EMULATION) && !defined(HAVE_COMPAT_IOCTL)
- /* Register ioctl conversions for 32 bit clients */
-@@ -1501,6 +1499,8 @@
- }
-
- pci_unregister_driver(&nv_pci_driver);
-+ rm_shutdown_rm();
-+
- return rc;
- }
-
-@@ -1532,10 +1532,6 @@
- /* remove /proc/driver/nvidia */
- nvos_proc_remove();
-
--#if defined(DEBUG)
-- inter_module_unregister("nv_linux_devices");
--#endif
--
- #if defined(NV_PM_SUPPORT_OLD_STYLE_APM)
- for (i = 0; i < num_nv_devices; i++)
- {
-@@ -2112,6 +2108,8 @@
- if (rm_validate_pfn_range(file, NV_VMA_PGOFF(vma),
- NV_VMA_SIZE(vma)) == RM_OK)
- {
-+ if (vma->vm_flags & VM_WRITE)
-+ return -EACCES;
- vma->vm_flags |= (VM_IO | VM_LOCKED);
- #if defined(NV_VM_INSERT_PAGE_PRESENT)
- if (NV_VM_INSERT_PAGE(vma, vma->vm_start, pfn_to_page(NV_VMA_PGOFF(vma))))
-@@ -2240,6 +2238,8 @@
- if (rm_validate_pfn_range(file, NV_VMA_PGOFF(vma),
- NV_VMA_SIZE(vma)) == RM_OK)
- {
-+ if (vma->vm_flags & VM_WRITE)
-+ return -EACCES;
- vma->vm_flags |= (VM_IO | VM_LOCKED);
- #if defined(NV_VM_INSERT_PAGE_PRESENT)
- if (NV_VM_INSERT_PAGE(vma, vma->vm_start, pfn_to_page(NV_VMA_PGOFF(vma))))
-@@ -3266,8 +3266,21 @@
- pte_t *pte = NULL;
- unsigned long retval;
-
-- mm = (kern) ? &init_mm : current->mm;
-- if (!kern) down_read(&current->mm->mmap_sem);
-+ if (!kern)
-+ {
-+ mm = current->mm;
-+ down_read(&mm->mmap_sem);
-+ }
-+ else
-+ {
-+#if defined(NV_SET_PAGES_UC_PRESENT) && defined(NVCPU_X86)
-+ /* nv_printf(NV_DBG_ERRORS,
-+ "NVRM: can't translate KVA in nv_get_phys_address()!\n"); */
-+ return 0;
-+#else
-+ mm = NULL;
-+#endif
-+ }
-
- pgd = NV_PGD_OFFSET(address, kern, mm);
- if (!NV_PGD_PRESENT(pgd))
-@@ -3288,11 +3301,13 @@
- retval &= ~_PAGE_NX;
- #endif
-
-- if (!kern) up_read(&current->mm->mmap_sem);
-+ if (!kern)
-+ up_read(&mm->mmap_sem);
- return retval;
-
- failed:
-- if (!kern) up_read(&current->mm->mmap_sem);
-+ if (!kern)
-+ up_read(&mm->mmap_sem);
- return 0;
- }
-
-@@ -3300,12 +3315,19 @@
- unsigned long address
- )
- {
-- // make sure this address is a kernel pointer
-+#if defined(NV_SET_PAGES_UC_PRESENT) && defined(NVCPU_X86)
-+ nv_linux_state_t *nvl;
-+ nv_alloc_t *at;
-+ unsigned long virt_addr;
-+ U032 i, j;
-+#endif
-+
-+ /* make sure this address is a kernel virtual address */
- #if defined(DEBUG) && !defined(CONFIG_X86_4G)
- if (address < PAGE_OFFSET)
- {
- nv_printf(NV_DBG_WARNINGS,
-- "NVRM: user address passed to get_kern_phys_address: 0x%lx\n",
-+ "NVRM: user address passed to get_kern_phys_address: 0x%llx!\n",
- address);
- return 0;
- }
-@@ -3315,6 +3337,30 @@
- if ((address > PAGE_OFFSET) && (address < VMALLOC_START))
- return __pa(address);
-
-+#if defined(NV_SET_PAGES_UC_PRESENT) && defined(NVCPU_X86)
-+ for (i = 0; i < num_nv_devices; i++)
-+ {
-+ nvl = &nv_linux_devices[i];
-+
-+ for (at = nvl->alloc_queue; (at != NULL); at = at->next)
-+ {
-+ if (!NV_ALLOC_MAPPING_VMAP(at->flags))
-+ continue;
-+
-+ for (j = 0; j < at->num_pages; j++)
-+ {
-+ virt_addr = at->page_table[j]->virt_addr;
-+ if ((address >= virt_addr) &&
-+ (address < (virt_addr + PAGE_SIZE)))
-+ {
-+ return (at->page_table[j]->phys_addr +
-+ (address & ~PAGE_MASK));
-+ }
-+ }
-+ }
-+ }
-+#endif
-+
- return _get_phys_address(address, 1);
- }
-
-@@ -3322,12 +3368,12 @@
- unsigned long address
- )
- {
-- // make sure this address is not a kernel pointer
-+ /* make sure this address is not a kernel virtual address */
- #if defined(DEBUG) && !defined(CONFIG_X86_4G)
- if (address >= PAGE_OFFSET)
- {
- nv_printf(NV_DBG_WARNINGS,
-- "NVRM: kernel address passed to get_user_phys_address: 0x%lx\n",
-+ "NVRM: kernel address passed to get_user_phys_address: 0x%llx!\n",
- address);
- return 0;
- }
-@@ -3396,8 +3442,6 @@
- if (nv_vm_malloc_pages(nv, at))
- goto failed;
-
-- at->class = class;
--
- // set our 'key' to the page_table. rm_alloc_agp_pages will call
- // nv_translate_address below, which will look up pages using
- // the value of *pAddress as a key, then index into the page_table
-@@ -3952,7 +3996,8 @@
-
- if (num_nv_devices == NV_MAX_DEVICES)
- {
-- nv_printf(NV_DBG_ERRORS, "NVRM: maximum device number (%d) reached!\n", num_nv_devices);
-+ nv_printf(NV_DBG_ERRORS, "NVRM: maximum device number (%d) exceeded!\n",
-+ (NV_MAX_DEVICES - 1));
- return -1;
- }
-
-@@ -4085,13 +4130,10 @@
- return -1;
- }
-
--int NV_API_CALL nv_no_incoherent_mappings
--(
-- void
--)
-+int NV_API_CALL nv_no_incoherent_mappings(void)
- {
--#if defined(NV_CHANGE_PAGE_ATTR_PRESENT)
-- return 1;
-+#if defined(NV_CHANGE_PAGE_ATTR_PRESENT) || defined(NV_SET_PAGES_UC_PRESENT)
-+ return (nv_update_memory_types);
- #else
- return 0;
- #endif
-diff -ru usr/src/nv/nv.h usr/src/nv.2305230/nv.h
---- usr/src/nv/nv.h 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/nv.h 2008-03-18 12:55:56.919649651 -0700
-@@ -335,15 +332,39 @@
-
- #define NV_DEVICE_NAME_LENGTH 40
-
-+#define NV_MAX_ISR_DELAY_US 20000
-+#define NV_MAX_ISR_DELAY_MS (NV_MAX_ISR_DELAY_US / 1000)
-+
-+#define NV_TIMERCMP(a, b, CMP) \
-+ (((a)->tv_sec == (b)->tv_sec) ? \
-+ ((a)->tv_usec CMP (b)->tv_usec) : ((a)->tv_sec CMP (b)->tv_sec))
-+
-+#define NV_TIMERADD(a, b, result) \
-+ { \
-+ (result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
-+ (result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
-+ if ((result)->tv_usec >= 1000000) \
-+ { \
-+ ++(result)->tv_sec; \
-+ (result)->tv_usec -= 1000000; \
-+ } \
-+ }
-+
-+#define NV_TIMERSUB(a, b, result) \
-+ { \
-+ (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
-+ (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
-+ if ((result)->tv_usec < 0) \
-+ { \
-+ --(result)->tv_sec; \
-+ (result)->tv_usec += 1000000; \
-+ } \
-+ }
-
- /*
- * driver internal interfaces
- */
-
--/* need a fake device number for control device; just to flag it for msgs */
--#define NV_CONTROL_DEVICE_NUMBER 100
--
--
- #ifndef NVWATCH
-
- /*
-diff -ru usr/src/nv/os-interface.c usr/src/nv.2305230/os-interface.c
---- usr/src/nv/os-interface.c 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/os-interface.c 2008-03-18 12:56:04.288069559 -0700
-@@ -25,7 +25,6 @@
- #include "os-interface.h"
- #include "nv-linux.h"
-
--
- static volatile int os_block_on_smp_barrier;
-
- #ifdef CONFIG_SMP
-@@ -63,7 +62,7 @@
- //
- typedef struct os_sema_s
- {
-- struct semaphore wait;
-+ struct completion completion;
- spinlock_t lock;
- S032 count;
- } os_sema_t;
-@@ -86,7 +85,7 @@
- return rmStatus;
-
- os_sema = (os_sema_t *)*ppSema;
-- sema_init(&os_sema->wait, 0);
-+ init_completion(&os_sema->completion);
- spin_lock_init(&os_sema->lock);
- os_sema->count = 1;
-
-@@ -131,7 +130,7 @@
- {
- os_sema->count--;
- spin_unlock_irqrestore(&os_sema->lock, old_irq);
-- down(&os_sema->wait);
-+ wait_for_completion(&os_sema->completion);
- }
- else
- {
-@@ -208,7 +207,7 @@
- spin_unlock_irqrestore(&os_sema->lock, old_irq);
-
- if (doWakeup)
-- up(&os_sema->wait);
-+ complete(&os_sema->completion);
-
- return RM_OK;
- }
-@@ -448,8 +447,6 @@
- //
- //---------------------------------------------------------------------------
-
--#define NV_MAX_ISR_UDELAY 20000
--#define NV_MAX_ISR_MDELAY (NV_MAX_ISR_UDELAY / 1000)
- #define NV_MSECS_PER_JIFFIE (1000 / HZ)
- #define NV_MSECS_TO_JIFFIES(msec) ((msec) * HZ / 1000)
- #define NV_USECS_PER_JIFFIE (1000000 / HZ)
-@@ -474,7 +471,7 @@
- do_gettimeofday(&tm1);
- #endif
-
-- if (in_irq() && MicroSeconds > NV_MAX_ISR_UDELAY)
-+ if (in_irq() && (MicroSeconds > NV_MAX_ISR_DELAY_US))
- return RM_ERROR;
-
- mdelay_safe_msec = MicroSeconds / 1000;
-@@ -494,36 +491,6 @@
- return RM_OK;
- }
-
--#ifndef timercmp
--# define timercmp(a, b, CMP) \
-- (((a)->tv_sec == (b)->tv_sec) ? \
-- ((a)->tv_usec CMP (b)->tv_usec) : \
-- ((a)->tv_sec CMP (b)->tv_sec))
--#endif
--#ifndef timeradd
--# define timeradd(a, b, result) \
-- do { \
-- (result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
-- (result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
-- if ((result)->tv_usec >= 1000000) \
-- { \
-- ++(result)->tv_sec; \
-- (result)->tv_usec -= 1000000; \
-- } \
-- } while (0)
--#endif
--#ifndef timersub
--# define timersub(a, b, result) \
-- do { \
-- (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
-- (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
-- if ((result)->tv_usec < 0) { \
-- --(result)->tv_sec; \
-- (result)->tv_usec += 1000000; \
-- } \
-- } while (0)
--#endif
--
- /*
- * On Linux, a jiffie represents the time passed in between two timer
- * interrupts. The number of jiffies per second (HZ) varies across the
-@@ -549,7 +516,7 @@
- tm_start = tm_aux;
- #endif
-
-- if (in_irq() && MilliSeconds > NV_MAX_ISR_MDELAY)
-+ if (in_irq() && (MilliSeconds > NV_MAX_ISR_DELAY_MS))
- return RM_ERROR;
-
- if (!NV_MAY_SLEEP())
-@@ -561,7 +528,7 @@
- MicroSeconds = MilliSeconds * 1000;
- tm_end.tv_usec = MicroSeconds;
- tm_end.tv_sec = 0;
-- timeradd(&tm_aux, &tm_end, &tm_end);
-+ NV_TIMERADD(&tm_aux, &tm_end, &tm_end);
-
- /* do we have a full jiffie to wait? */
- jiffies = NV_USECS_TO_JIFFIES(MicroSeconds);
-@@ -590,9 +557,9 @@
- schedule_timeout(jiffies);
- /* catch the remainder, if any */
- do_gettimeofday(&tm_aux);
-- if (timercmp(&tm_aux, &tm_end, <))
-+ if (NV_TIMERCMP(&tm_aux, &tm_end, <))
- {
-- timersub(&tm_end, &tm_aux, &tm_aux); // tm_aux = tm_end - tm_aux
-+ NV_TIMERSUB(&tm_end, &tm_aux, &tm_aux); // tm_aux = tm_end - tm_aux
- MicroSeconds = tm_aux.tv_usec + tm_aux.tv_sec * 1000000;
- } else
- MicroSeconds = 0;
-@@ -1109,6 +1076,18 @@
- {
- void *vaddr;
-
-+ if (start == 0)
-+ {
-+ if (mode != NV_MEMORY_CACHED)
-+ {
-+ nv_printf(NV_DBG_ERRORS,
-+ "NVRM: os_map_kernel_space: won't map address 0x%0llx UC!\n", start);
-+ return NULL;
-+ }
-+ else
-+ return (void *)PAGE_OFFSET;
-+ }
-+
- if (!NV_MAY_SLEEP())
- {
- nv_printf(NV_DBG_ERRORS,
-@@ -1131,6 +1110,9 @@
- U032 size_bytes
- )
- {
-+ if (addr == (void *)PAGE_OFFSET)
-+ return;
-+
- NV_IOUNMAP(addr, size_bytes);
- }
-
-@@ -1176,7 +1158,11 @@
- #if defined(CONFIG_X86_REMOTE_DEBUG)
- __asm__ __volatile__ ("int $3");
- #elif defined(CONFIG_KGDB)
-+#if defined(NV_OLD_MM_KGDB_BREAKPOINT_PRESENT)
-+ BREAKPOINT;
-+#else
- BREAKPOINT();
-+#endif
- #elif defined(CONFIG_KDB)
- KDB_ENTER();
- #else
-diff -ru usr/src/nv/os-registry.c usr/src/nv.2305230/os-registry.c
---- usr/src/nv/os-registry.c 2008-01-21 11:48:11.000000000 -0800
-+++ usr/src/nv.2305230/os-registry.c 2008-03-18 12:56:07.492252151 -0700
-@@ -48,24 +48,6 @@
- * This could be changed to work on a per-device basis.
- */
-
--/*
-- * The 2nd argument to MODULE_PARM is used to verify parameters passed
-- * to the module at load time. It should be a string in the following
-- * format:
-- *
-- * [min[-max]]{b,h,i,l,s}
-- *
-- * The MIN and MAX specifiers delimit the length of the array. If MAX
-- * is omitted, it defaults to MIN; if both are omitted, the default is
-- * 1. The final character is a type specifier.
-- *
-- * b byte
-- * h short
-- * i int
-- * l long
-- * s string
-- */
--
- /*
- * Option: VideoMemoryTypeOverride
- *
-@@ -360,9 +342,6 @@
- static int NVreg_DevicesConnected = 0;
- NV_MODULE_PARAMETER(NVreg_DevicesConnected);
-
--static int NVreg_VideoEnhancement = 0;
--NV_MODULE_PARAMETER(NVreg_VideoEnhancement);
--
- static int NVreg_RmLogonRC = 1;
- NV_MODULE_PARAMETER(NVreg_RmLogonRC);
-
-@@ -402,34 +381,36 @@
- NV_MODULE_PARAMETER(NVreg_RemapLimit);
-
- /*
-- * Option: UseCPA
-+ * Option: UpdateMemoryTypes
- *
- * Description:
- *
-- * Many kernels have a broken implementation of change_page_attr that leads
-- * to cache aliasing problems. x86_64 kernels between 2.6.0 and 2.6.10 will
-- * force a kernel BUG_ON() when this condition is encountered. For this
-- * reason, the NVIDIA driver is very careful about not using the CPA kernel
-- * interface on these kernels.
-+ * Many kernels have broken implementations of the change_page_attr()
-+ * kernel interface that may cause cache aliasing problems. Linux/x86-64
-+ * kernels between 2.6.0 and 2.6.10 may prompt kernel BUG()s due to
-+ * improper accounting in the interface's large page management code, for
-+ * example. For this reason, the NVIDIA Linux driver is very careful about
-+ * not using the change_page_attr() kernel interface on these kernels.
-+ *
-+ * Due to the serious nature of the problems that can arise from bugs in
-+ * the change_page_attr(), set_pages_{uc,wb}() and other kernel interfaces
-+ * used to modify memory types, the NVIDIA driver implements a manual
-+ * registry key override to allow forcibly enabling or disabling use of
-+ * these APIs.
- *
-- * Some distributions have backported this fix to kernel versions that fall
-- * within this version range. The NVIDIA driver attempts to automatically
-- * detect these fixes and reenable usage of the change_page_attr interface.
-+ * Possible values:
- *
-- * Due to the serious nature of the problems that can arise from this, the
-- * NVIDIA driver implements a manual registry key to force usage of this API
-- * to be enabled or disabled. This registry key can be used to force usage
-- * of the API on a known fixed kernel if the NVIDIA driver fails to detect
-- * the kernel as fixed. This registry key can also be used to disable usage
-- * of the API on a bad kernel that is misdetected as a fixed kernel.
-+ * ~0 = use the NVIDIA driver's default logic (default)
-+ * 0 = enable use of change_page_attr(), etc.
-+ * 1 = disable use of change_page_attr(), etc.
- *
-- * The default value is '-1' (use NVIDIA driver default logic)
-- * A value of '0' will forcibly disable change_page_attr calls.
-- * A value of '1' will forcibly enable change_page_attr calls.
-+ * By default, the NVIDIA driver will attempt to auto-detect if it can
-+ * safely use the change_page_attr() and other kernel interfaces to modify
-+ * the memory types of kernel mappings.
- */
-
--static int NVreg_UseCPA = -1;
--NV_MODULE_PARAMETER(NVreg_UseCPA);
-+static int NVreg_UpdateMemoryTypes = ~0;
-+NV_MODULE_PARAMETER(NVreg_UpdateMemoryTypes);
-
- // 1 - Force sourcing vbios from ROM
- // 0 - business as usual
-@@ -477,15 +458,14 @@
- { "NVreg", "ResmanDebugLevel", &NVreg_ResmanDebugLevel, 1 },
- { "NVreg", "FlatPanelMode", &NVreg_FlatPanelMode, 1 },
- { "NVreg", "DevicesConnected", &NVreg_DevicesConnected, 1 },
-- { "NVreg", "VideoEnhancement", &NVreg_VideoEnhancement, 1 },
- { "NVreg", "RmLogonRC", &NVreg_RmLogonRC, 1 },
-+ { "NVreg", "VbiosFromROM", &NVreg_VbiosFromROM, 1 },
- { "NVreg", "ModifyDeviceFiles", &NVreg_ModifyDeviceFiles, 1 },
- { "NVreg", "DeviceFileUID", &NVreg_DeviceFileUID, 1 },
- { "NVreg", "DeviceFileGID", &NVreg_DeviceFileGID, 1 },
- { "NVreg", "DeviceFileMode", &NVreg_DeviceFileMode, 1 },
-- { "NVreg", "VbiosFromROM", &NVreg_VbiosFromROM, 1 },
- { "NVreg", "RemapLimit", &NVreg_RemapLimit, 1 },
-- { "NVreg", "UseCPA", &NVreg_UseCPA, 1 },
-+ { "NVreg", "UpdateMemoryTypes", &NVreg_UpdateMemoryTypes, 1 },
- { "NVreg", "RMEdgeIntrCheck", &NVreg_RMEdgeIntrCheck, 1 },
- { NULL, NULL, NULL, 0 }
- };