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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-27 00:36:21 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-27 00:36:21 +0300 |
commit | 685f7e4f161425b137056abe35ba8ef7b669d83d (patch) | |
tree | 550dd1f5dc9e852cfeec26bf5e3ce9dd060c8a33 /drivers/video/fbdev | |
parent | c7a2c49ea6c9eebbe44ff2c08b663b2905ee2c13 (diff) | |
parent | 58cfbac25b1fd2b76f94566aed28a3662b0ff8c6 (diff) | |
download | linux-685f7e4f161425b137056abe35ba8ef7b669d83d.tar.xz |
Merge tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- A large series to rewrite our SLB miss handling, replacing a lot of
fairly complicated asm with much fewer lines of C.
- Following on from that, we now maintain a cache of SLB entries for
each process and preload them on context switch. Leading to a 27%
speedup for our context switch benchmark on Power9.
- Improvements to our handling of SLB multi-hit errors. We now print
more debug information when they occur, and try to continue running
by flushing the SLB and reloading, rather than treating them as
fatal.
- Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).
- Add support for physical memory up to 2PB in the linear mapping on
64-bit Book3S. We only support up to 512TB as regular system
memory, otherwise the percpu allocator runs out of vmalloc space.
- Add stack protector support for 32 and 64-bit, with a per-task
canary.
- Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.
- Support recognising "big cores" on Power9, where two SMT4 cores are
presented to us as a single SMT8 core.
- A large series to cleanup some of our ioremap handling and PTE
flags.
- Add a driver for the PAPR SCM (storage class memory) interface,
allowing guests to operate on SCM devices (acked by Dan).
- Changes to our ftrace code to handle very large kernels, where we
need to use a trampoline to get to ftrace_caller().
And many other smaller enhancements and cleanups.
Thanks to: Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton
Blanchard, Aravinda Prasad, Bartlomiej Zolnierkiewicz, Benjamin
Herrenschmidt, Breno Leitao, Cédric Le Goater, Christophe Leroy,
Christophe Lombard, Dan Carpenter, Daniel Axtens, Finn Thain, Gautham
R. Shenoy, Gustavo Romero, Haren Myneni, Hari Bathini, Jia Hongtao,
Joel Stanley, John Allen, Laurent Dufour, Madhavan Srinivasan, Mahesh
Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael Bringmann,
Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver
O'Halloran, Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab,
Rob Herring, Sam Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan
Johnson, Stephen Rothwell, Stewart Smith, Suraj Jitindar Singh, Tyrel
Datwyler, Vaibhav Jain, Vasant Hegde, YueHaibing, zhong jiang"
* tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (221 commits)
Revert "selftests/powerpc: Fix out-of-tree build errors"
powerpc/msi: Fix compile error on mpc83xx
powerpc: Fix stack protector crashes on CPU hotplug
powerpc/traps: restore recoverability of machine_check interrupts
powerpc/64/module: REL32 relocation range check
powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd
selftests/powerpc: Add a test of wild bctr
powerpc/mm: Fix page table dump to work on Radix
powerpc/mm/radix: Display if mappings are exec or not
powerpc/mm/radix: Simplify split mapping logic
powerpc/mm/radix: Remove the retry in the split mapping logic
powerpc/mm/radix: Fix small page at boundary when splitting
powerpc/mm/radix: Fix overuse of small pages in splitting logic
powerpc/mm/radix: Fix off-by-one in split mapping logic
powerpc/ftrace: Handle large kernel configs
powerpc/mm: Fix WARN_ON with THP NUMA migration
selftests/powerpc: Fix out-of-tree build errors
powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected
powerpc/time: Only set CONFIG_ARCH_HAS_SCALED_CPUTIME on PPC64
powerpc/time: isolate scaled cputime accounting in dedicated functions.
...
Diffstat (limited to 'drivers/video/fbdev')
-rw-r--r-- | drivers/video/fbdev/chipsfb.c | 3 | ||||
-rw-r--r-- | drivers/video/fbdev/controlfb.c | 5 | ||||
-rw-r--r-- | drivers/video/fbdev/platinumfb.c | 5 | ||||
-rw-r--r-- | drivers/video/fbdev/valkyriefb.c | 12 |
4 files changed, 9 insertions, 16 deletions
diff --git a/drivers/video/fbdev/chipsfb.c b/drivers/video/fbdev/chipsfb.c index f103665cad43..40182ed85648 100644 --- a/drivers/video/fbdev/chipsfb.c +++ b/drivers/video/fbdev/chipsfb.c @@ -27,7 +27,6 @@ #include <linux/init.h> #include <linux/pci.h> #include <linux/console.h> -#include <asm/io.h> #ifdef CONFIG_PMAC_BACKLIGHT #include <asm/backlight.h> @@ -401,7 +400,7 @@ static int chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent) #endif /* CONFIG_PMAC_BACKLIGHT */ #ifdef CONFIG_PPC - p->screen_base = __ioremap(addr, 0x200000, _PAGE_NO_CACHE); + p->screen_base = ioremap_wc(addr, 0x200000); #else p->screen_base = ioremap(addr, 0x200000); #endif diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c index 8d14b29aafea..9cb0ef7ac29e 100644 --- a/drivers/video/fbdev/controlfb.c +++ b/drivers/video/fbdev/controlfb.c @@ -48,9 +48,7 @@ #include <linux/nvram.h> #include <linux/adb.h> #include <linux/cuda.h> -#include <asm/io.h> #include <asm/prom.h> -#include <asm/pgtable.h> #include <asm/btext.h> #include "macmodes.h" @@ -715,8 +713,7 @@ static int __init control_of_init(struct device_node *dp) goto error_out; } /* map at most 8MB for the frame buffer */ - p->frame_buffer = __ioremap(p->frame_buffer_phys, 0x800000, - _PAGE_WRITETHRU); + p->frame_buffer = ioremap_wt(p->frame_buffer_phys, 0x800000); if (!p->control_regs_phys || !request_mem_region(p->control_regs_phys, p->control_regs_size, diff --git a/drivers/video/fbdev/platinumfb.c b/drivers/video/fbdev/platinumfb.c index 377d3399a3ad..bf6b7fb83cf4 100644 --- a/drivers/video/fbdev/platinumfb.c +++ b/drivers/video/fbdev/platinumfb.c @@ -32,9 +32,7 @@ #include <linux/nvram.h> #include <linux/of_device.h> #include <linux/of_platform.h> -#include <asm/io.h> #include <asm/prom.h> -#include <asm/pgtable.h> #include "macmodes.h" #include "platinumfb.h" @@ -577,8 +575,7 @@ static int platinumfb_probe(struct platform_device* odev) /* frame buffer - map only 4MB */ pinfo->frame_buffer_phys = pinfo->rsrc_fb.start; - pinfo->frame_buffer = __ioremap(pinfo->rsrc_fb.start, 0x400000, - _PAGE_WRITETHRU); + pinfo->frame_buffer = ioremap_wt(pinfo->rsrc_fb.start, 0x400000); pinfo->base_frame_buffer = pinfo->frame_buffer; /* registers */ diff --git a/drivers/video/fbdev/valkyriefb.c b/drivers/video/fbdev/valkyriefb.c index 275fb98236d3..d51c3a8009cb 100644 --- a/drivers/video/fbdev/valkyriefb.c +++ b/drivers/video/fbdev/valkyriefb.c @@ -54,13 +54,11 @@ #include <linux/nvram.h> #include <linux/adb.h> #include <linux/cuda.h> -#include <asm/io.h> #ifdef CONFIG_MAC #include <asm/macintosh.h> #else #include <asm/prom.h> #endif -#include <asm/pgtable.h> #include "macmodes.h" #include "valkyriefb.h" @@ -318,7 +316,7 @@ static void __init valkyrie_choose_mode(struct fb_info_valkyrie *p) int __init valkyriefb_init(void) { struct fb_info_valkyrie *p; - unsigned long frame_buffer_phys, cmap_regs_phys, flags; + unsigned long frame_buffer_phys, cmap_regs_phys; int err; char *option = NULL; @@ -337,7 +335,6 @@ int __init valkyriefb_init(void) /* Hardcoded addresses... welcome to 68k Macintosh country :-) */ frame_buffer_phys = 0xf9000000; cmap_regs_phys = 0x50f24000; - flags = IOMAP_NOCACHE_SER; /* IOMAP_WRITETHROUGH?? */ #else /* ppc (!CONFIG_MAC) */ { struct device_node *dp; @@ -354,7 +351,6 @@ int __init valkyriefb_init(void) frame_buffer_phys = r.start; cmap_regs_phys = r.start + 0x304000; - flags = _PAGE_WRITETHRU; } #endif /* ppc (!CONFIG_MAC) */ @@ -369,7 +365,11 @@ int __init valkyriefb_init(void) } p->total_vram = 0x100000; p->frame_buffer_phys = frame_buffer_phys; - p->frame_buffer = __ioremap(frame_buffer_phys, p->total_vram, flags); +#ifdef CONFIG_MAC + p->frame_buffer = ioremap_nocache(frame_buffer_phys, p->total_vram); +#else + p->frame_buffer = ioremap_wt(frame_buffer_phys, p->total_vram); +#endif p->cmap_regs_phys = cmap_regs_phys; p->cmap_regs = ioremap(p->cmap_regs_phys, 0x1000); p->valkyrie_regs_phys = cmap_regs_phys+0x6000; |