kernel/linux.git/drivers/char/agp/generic.c, branch v6.12.98

mm: don't include asm/pgtable.h if linux/mm.h is already included

2020-06-09T16:39:13+00:00

Patch series "mm: consolidate definitions of page table accessors", v2. The low level page table accessors (pXY_index(), pXY_offset()) are duplicated across all architectures and sometimes more than once. For instance, we have 31 definition of pgd_offset() for 25 supported architectures. Most of these definitions are actually identical and typically it boils down to, e.g. static inline unsigned long pmd_index(unsigned long address) { return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1); } static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) { return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address); } These definitions can be shared among 90% of the arches provided XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined. For architectures that really need a custom version there is always possibility to override the generic version with the usual ifdefs magic. These patches introduce include/linux/pgtable.h that replaces include/asm-generic/pgtable.h and add the definitions of the page table accessors to the new header. This patch (of 12): The linux/mm.h header includes to allow inlining of the functions involving page table manipulations, e.g. pte_alloc() and pmd_alloc(). So, there is no point to explicitly include in the files that include . The include statements in such cases are remove with a simple loop: for f in $(git grep -l "include ") ; do sed -i -e '/include / d' $f done Signed-off-by: Mike Rapoport Signed-off-by: Andrew Morton Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Brian Cain Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Guan Xuetao Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: Ingo Molnar Cc: Ley Foon Tan Cc: Mark Salter Cc: Matthew Wilcox Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Mike Rapoport Cc: Nick Hu Cc: Paul Walmsley Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Tony Luck Cc: Vincent Chen Cc: Vineet Gupta Cc: Will Deacon Cc: Yoshinori Sato Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org Signed-off-by: Linus Torvalds

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06T08:45:59+00:00

ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig Acked-by: Arnd Bergmann

agp: Add bridge parameter documentation

2019-12-04T03:35:59+00:00

This patch add documentation about the bridge parameter in several function. This will fix the following build warning: drivers/char/agp/generic.c:220: warning: No description found for parameter 'bridge' drivers/char/agp/generic.c:364: warning: No description found for parameter 'bridge' drivers/char/agp/generic.c:1283: warning: No description found for parameter 'bridge' Signed-off-by: Corentin Labbe Acked-by: Arnd Bergmann Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/1574324085-4338-5-git-send-email-clabbe@baylibre.com

agp: remove unused variable size in agp_generic_create_gatt_table

2019-12-04T03:31:57+00:00

This patch fix the following warning: drivers/char/agp/generic.c:853:6: attention : variable ‘size’ set but not used [-Wunused-but-set-variable] by removing the unused variable size in agp_generic_create_gatt_table Signed-off-by: Corentin Labbe Acked-by: Arnd Bergmann Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/1574324085-4338-2-git-send-email-clabbe@baylibre.com

smp: Remove smp_call_function() and on_each_cpu() return values

2019-06-23T12:26:26+00:00

The return value is fixed. Remove it and amend the callers. [ tglx: Fixup arm/bL_switcher and powerpc/rtas ] Signed-off-by: Nadav Amit Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Dave Hansen Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Tony Luck Cc: Fenghua Yu Cc: Andrew Morton Link: https://lkml.kernel.org/r/20190613064813.8102-2-namit@vmware.com

agp: use set_memory.h header

2017-05-09T00:15:13+00:00

set_memory_* functions have moved to set_memory.h. Switch to this explicitly. Link: http://lkml.kernel.org/r/1488920133-27229-7-git-send-email-labbott@redhat.com Signed-off-by: Laura Abbott Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

treewide: use kv[mz]alloc* rather than opencoded variants

2017-05-09T00:15:13+00:00

There are many code paths opencoding kvmalloc. Let's use the helper instead. The main difference to kvmalloc is that those users are usually not considering all the aspects of the memory allocator. E.g. allocation requests <= 32kB (with 4kB pages) are basically never failing and invoke OOM killer to satisfy the allocation. This sounds too disruptive for something that has a reasonable fallback - the vmalloc. On the other hand those requests might fallback to vmalloc even when the memory allocator would succeed after several more reclaim/compaction attempts previously. There is no guarantee something like that happens though. This patch converts many of those places to kv[mz]alloc* helpers because they are more conservative. Link: http://lkml.kernel.org/r/20170306103327.2766-2-mhocko@kernel.org Signed-off-by: Michal Hocko Reviewed-by: Boris Ostrovsky # Xen bits Acked-by: Kees Cook Acked-by: Vlastimil Babka Acked-by: Andreas Dilger # Lustre Acked-by: Christian Borntraeger # KVM/s390 Acked-by: Dan Williams # nvdim Acked-by: David Sterba # btrfs Acked-by: Ilya Dryomov # Ceph Acked-by: Tariq Toukan # mlx4 Acked-by: Leon Romanovsky # mlx5 Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Herbert Xu Cc: Anton Vorontsov Cc: Colin Cross Cc: Tony Luck Cc: "Rafael J. Wysocki" Cc: Ben Skeggs Cc: Kent Overstreet Cc: Santosh Raspatur Cc: Hariprasad S Cc: Yishai Hadas Cc: Oleg Drokin Cc: "Yan, Zheng" Cc: Alexander Viro Cc: Alexei Starovoitov Cc: Eric Dumazet Cc: David Miller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

agp: change agp_free_page_array to use kvfree

2015-01-29T02:37:41+00:00

Change agp_free_page_array to use kvfree function, remove the duplicated code. Signed-off-by: Yalin Wang Signed-off-by: Dave Airlie

drivers/char: delete non-required instances of include

2014-02-07T23:10:19+00:00

None of these files are actually using any __init type directives and hence don't need to include . Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: David Airlie Cc: Matt Mackall Cc: Herbert Xu Cc: Kukjin Kim Cc: Corey Minyard Cc: Chris Metcalf Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Peter Huewe Cc: Ashley Lai Cc: Marcel Selhorst Signed-off-by: Paul Gortmaker Signed-off-by: Greg Kroah-Hartman

agp: Support 64-bit APBASE

2014-01-07T00:49:22+00:00

Per the AGP 3.0 spec, APBASE is a standard PCI BAR and may be either 32 bits or 64 bits wide. Many drivers read APBASE directly, but they only handled 32-bit BARs. The PCI core reads APBASE at enumeration-time. Use pci_bus_address() instead of reading it again in the driver. This works correctly for both 32-bit and 64-bit BARs. Signed-off-by: Bjorn Helgaas Reviewed-by: Daniel Vetter