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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-05 10:07:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-05 10:07:23 -0700
commit3bd6e5854bf9bb5436d6b533e206561839e3b284 (patch)
tree2d788271309efc414e3bca6a07ff66e920b0d657 /arch/parisc
parentfad235ed4338749a66ddf32971d4042b9ef47f44 (diff)
parent6f05e014b96c8846cdc39acdf10bbdbafb9c78a0 (diff)
downloadlwn-3bd6e5854bf9bb5436d6b533e206561839e3b284.tar.gz
lwn-3bd6e5854bf9bb5436d6b533e206561839e3b284.zip
Merge tag 'asm-generic-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann: "There are three independent sets of changes: - Sai Prakash Ranjan adds tracing support to the asm-generic version of the MMIO accessors, which is intended to help understand problems with device drivers and has been part of Qualcomm's vendor kernels for many years - A patch from Sebastian Siewior to rework the handling of IRQ stacks in softirqs across architectures, which is needed for enabling PREEMPT_RT - The last patch to remove the CONFIG_VIRT_TO_BUS option and some of the code behind that, after the last users of this old interface made it in through the netdev, scsi, media and staging trees" * tag 'asm-generic-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: uapi: asm-generic: fcntl: Fix typo 'the the' in comment arch/*/: remove CONFIG_VIRT_TO_BUS soc: qcom: geni: Disable MMIO tracing for GENI SE serial: qcom_geni_serial: Disable MMIO tracing for geni serial asm-generic/io: Add logging support for MMIO accessors KVM: arm64: Add a flag to disable MMIO trace for nVHE KVM lib: Add register read/write tracing support drm/meson: Fix overflow implicit truncation warnings irqchip/tegra: Fix overflow implicit truncation warnings coresight: etm4x: Use asm-generic IO memory barriers arm64: io: Use asm-generic high level MMIO accessors arch/*: Disable softirq stacks on PREEMPT_RT.
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/Kconfig1
-rw-r--r--arch/parisc/include/asm/floppy.h4
-rw-r--r--arch/parisc/include/asm/io.h2
-rw-r--r--arch/parisc/kernel/irq.c2
4 files changed, 4 insertions, 5 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fa400055b2d5..7f059cd1196a 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -44,7 +44,6 @@ config PARISC
select SYSCTL_ARCH_UNALIGN_ALLOW
select SYSCTL_EXCEPTION_TRACE
select HAVE_MOD_ARCH_SPECIFIC
- select VIRT_TO_BUS
select MODULES_USE_ELF_RELA
select CLONE_BACKWARDS
select TTY # Needed for pdc_cons.c
diff --git a/arch/parisc/include/asm/floppy.h b/arch/parisc/include/asm/floppy.h
index 762cfe7778c0..b318a7df52f6 100644
--- a/arch/parisc/include/asm/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
@@ -179,7 +179,7 @@ static void _fd_chose_dma_mode(char *addr, unsigned long size)
{
if(can_use_virtual_dma == 2) {
if((unsigned int) addr >= (unsigned int) high_memory ||
- virt_to_bus(addr) >= 0x1000000 ||
+ virt_to_phys(addr) >= 0x1000000 ||
_CROSS_64KB(addr, size, 0))
use_virtual_dma = 1;
else
@@ -215,7 +215,7 @@ static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
doing_pdma = 0;
clear_dma_ff(FLOPPY_DMA);
set_dma_mode(FLOPPY_DMA,mode);
- set_dma_addr(FLOPPY_DMA,virt_to_bus(addr));
+ set_dma_addr(FLOPPY_DMA,virt_to_phys(addr));
set_dma_count(FLOPPY_DMA,size);
enable_dma(FLOPPY_DMA);
return 0;
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 837ddddbac6a..42ffb60a6ea9 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -7,8 +7,6 @@
#define virt_to_phys(a) ((unsigned long)__pa(a))
#define phys_to_virt(a) __va(a)
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
static inline unsigned long isa_bus_to_virt(unsigned long addr) {
BUG();
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 5ebb1771b4ab..fbb882cb8dbb 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -480,10 +480,12 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
*irq_stack_in_use = 1;
}
+#ifndef CONFIG_PREEMPT_RT
void do_softirq_own_stack(void)
{
execute_on_irq_stack(__do_softirq, 0);
}
+#endif
#endif /* CONFIG_IRQSTACKS */
/* ONLY called from entry.S:intr_extint() */