kernel/arch/powerpc/platforms/ps3/setup.c, branch linux-4.3.y

powerpc: Remove more traces of bootmem

2014-11-19T10:41:51Z

Although we are now selecting NO_BOOTMEM, we still have some traces of bootmem lying around. That is because even with NO_BOOTMEM there is still a shim that converts bootmem calls into memblock calls, but ultimately we want to remove all traces of bootmem. Most of the patch is conversions from alloc_bootmem() to memblock_virt_alloc(). In general a call such as: p = (struct foo *)alloc_bootmem(x); Becomes: p = memblock_virt_alloc(x, 0); We don't need the cast because memblock_virt_alloc() returns a void *. The alignment value of zero tells memblock to use the default alignment, which is SMP_CACHE_BYTES, the same value alloc_bootmem() uses. We remove a number of NULL checks on the result of memblock_virt_alloc(). That is because memblock_virt_alloc() will panic if it can't allocate, in exactly the same way as alloc_bootmem(), so the NULL checks are and always have been redundant. The memory returned by memblock_virt_alloc() is already zeroed, so we remove several memsets of the result of memblock_virt_alloc(). Finally we convert a few uses of __alloc_bootmem(x, y, MAX_DMA_ADDRESS) to just plain memblock_virt_alloc(). We don't use memblock_alloc_base() because MAX_DMA_ADDRESS is ~0ul on powerpc, so limiting the allocation to that is pointless, 16XB ought to be enough for anyone. Signed-off-by: Michael Ellerman

powerpc: Convert power off logic to pm_power_off

2014-11-03T01:12:51Z

The generic Linux framework to power off the machine is a function pointer called pm_power_off. The trick about this pointer is that device drivers can potentially implement it rather than board files. Today on powerpc we set pm_power_off to invoke our generic full machine power off logic which then calls ppc_md.power_off to invoke machine specific power off. However, when we want to add a power off GPIO via the "gpio-poweroff" driver, this card house falls apart. That driver only registers itself if pm_power_off is NULL to ensure it doesn't override board specific logic. However, since we always set pm_power_off to the generic power off logic (which will just not power off the machine if no ppc_md.power_off call is implemented), we can't implement power off via the generic GPIO power off driver. To fix this up, let's get rid of the ppc_md.power_off logic and just always use pm_power_off as was intended. Then individual drivers such as the GPIO power off driver can implement power off logic via that function pointer. With this patch set applied and a few patches on top of QEMU that implement a power off GPIO on the virt e500 machine, I can successfully turn off my virtual machine after halt. Signed-off-by: Alexander Graf [mpe: Squash into one patch and update changelog based on cover letter] Signed-off-by: Michael Ellerman

powerpc: Rework set_dabr so it can take a DABRX value as well

2012-09-09T23:59:10Z

Rework set_dabr to take a DABRX value as well. Both the pseries and PS3 hypervisors do some checks on the DABRX values that are passed in the hcall. This patch stops bogus values from being passed to hypervisor. Also, in the case where we are clearing the breakpoint, where DABR and DABRX are zero, we modify the DABRX value to make it valid so that the hcall won't fail. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc/ps3: Fix hcall lv1_get_version_info

2011-12-08T03:05:54Z

The lv1_get_version_info hcall takes 2, not 1 output arguments. Adjust the lv1 hcall table and all calls. Usage: int lv1_get_version_info(u64 *version_number, u64 *vendor_id) Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt

powerpc: add export.h to files making use of EXPORT_SYMBOL

2011-10-31T23:30:37Z

With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker

ps3fb/vram: Extract common GPU stuff into

2009-06-15T03:26:20Z

Signed-off-by: Geert Uytterhoeven Cc: linux-fbdev-devel@lists.sourceforge.net Cc: Jim Paris Cc: Jens Axboe Signed-off-by: Benjamin Herrenschmidt

powerpc/ps3: Fix build error on UP

2009-04-28T03:53:29Z

A non-SMP version of smp_send_stop() is now included in smp.h. Remove the unneeded definition in the PS3 smp.c. Fixes build errors like these when CONFIG_SMP=n: arch/powerpc/platforms/ps3/setup.c:49: error: redefinition of 'smp_send_stop' include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here Reported-by: Subrata Modak Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras

powerpc/ps3: Add rtc-ps3

2009-04-02T01:05:32Z

Create a real RTC driver for PS3, and unhook the deprecated ppc_md.[gs]et_rtc_time. Signed-off-by: Geert Uytterhoeven Acked-by: Alessandro Zummo Acked-by: Geoff Levand Signed-off-by: Kyle McMartin

powerpc/ps3: set_dabr() takes an unsigned long

2009-01-16T05:15:11Z

Also silences this warning: arch/powerpc/platforms/ps3/setup.c:275: warning: initialization from incompatible pointer type Signed-off-by: Stephen Rothwell Acked-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt

powerpc: Remove default kexec/crash_kernel ops assignments

2008-12-23T04:13:28Z

Default ops are implicit now. Signed-off-by: Anton Vorontsov Signed-off-by: Paul Mackerras