Merge tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add HOTPLUG_SMT support (/sys/devices/system/cpu/smt) and honour the
   configured SMT state when hotplugging CPUs into the system

 - Combine final TLB flush and lazy TLB mm shootdown IPIs when using the
   Radix MMU to avoid a broadcast TLBIE flush on exit

 - Drop the exclusion between ptrace/perf watchpoints, and drop the now
   unused associated arch hooks

 - Add support for the "nohlt" command line option to disable CPU idle

 - Add support for -fpatchable-function-entry for ftrace, with GCC >=
   13.1

 - Rework memory block size determination, and support 256MB size on
   systems with GPUs that have hotpluggable memory

 - Various other small features and fixes

Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Benjamin Gray, Christophe Leroy, Frederic Barrat, Gautam
Menghani, Geoff Levand, Hari Bathini, Immad Mir, Jialin Zhang, Joel
Stanley, Jordan Niethe, Justin Stitt, Kajol Jain, Kees Cook, Krzysztof
Kozlowski, Laurent Dufour, Liang He, Linus Walleij, Mahesh Salgaonkar,
Masahiro Yamada, Michal Suchanek, Nageswara R Sastry, Nathan Chancellor,
Nathan Lynch, Naveen N Rao, Nicholas Piggin, Nick Desaulniers, Omar
Sandoval, Randy Dunlap, Reza Arbab, Rob Herring, Russell Currey, Sourabh
Jain, Thomas Gleixner, Trevor Woerner, Uwe Kleine-König, Vaibhav Jain,
Xiongfeng Wang, Yuan Tan, Zhang Rui, and Zheng Zengkai.

* tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (135 commits)
  macintosh/ams: linux/platform_device.h is needed
  powerpc/xmon: Reapply "Relax frame size for clang"
  powerpc/mm/book3s64: Use 256M as the upper limit with coherent device memory attached
  powerpc/mm/book3s64: Fix build error with SPARSEMEM disabled
  powerpc/iommu: Fix notifiers being shared by PCI and VIO buses
  powerpc/mpc5xxx: Add missing fwnode_handle_put()
  powerpc/config: Disable SLAB_DEBUG_ON in skiroot
  powerpc/pseries: Remove unused hcall tracing instruction
  powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n
  powerpc: dts: add missing space before {
  powerpc/eeh: Use pci_dev_id() to simplify the code
  powerpc/64s: Move CPU -mtune options into Kconfig
  powerpc/powermac: Fix unused function warning
  powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT
  powerpc: Don't include lppaca.h in paca.h
  powerpc/pseries: Move hcall_vphn() prototype into vphn.h
  powerpc/pseries: Move VPHN constants into vphn.h
  cxl: Drop unused detach_spa()
  powerpc: Drop zalloc_maybe_bootmem()
  powerpc/powernv: Use struct opal_prd_msg in more places
  ...

1 files changed, 22 insertions, 57 deletions

diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 24f358f86d16..2336b687bc96 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -22,7 +22,6 @@
 
 #include <asm/io.h>
 #include <asm/8xx_immap.h>
-#include <asm/fs_pd.h>
 #include <mm/mmu_decl.h>
 
 #include "pic.h"
@@ -37,20 +36,6 @@ static irqreturn_t timebase_interrupt(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-/* per-board overridable init_internal_rtc() function. */
-void __init __attribute__ ((weak))
-init_internal_rtc(void)
-{
-	sit8xx_t __iomem *sys_tmr = immr_map(im_sit);
-
-	/* Disable the RTC one second and alarm interrupts. */
-	clrbits16(&sys_tmr->sit_rtcsc, (RTCSC_SIE | RTCSC_ALE));
-
-	/* Enable the RTC */
-	setbits16(&sys_tmr->sit_rtcsc, (RTCSC_RTF | RTCSC_RTE));
-	immr_unmap(sys_tmr);
-}
-
 static int __init get_freq(char *name, unsigned long *val)
 {
 	struct device_node *cpu;
@@ -80,23 +65,14 @@ static int __init get_freq(char *name, unsigned long *val)
 void __init mpc8xx_calibrate_decr(void)
 {
 	struct device_node *cpu;
-	cark8xx_t __iomem *clk_r1;
-	car8xx_t __iomem *clk_r2;
-	sitk8xx_t __iomem *sys_tmr1;
-	sit8xx_t __iomem *sys_tmr2;
 	int irq, virq;
 
-	clk_r1 = immr_map(im_clkrstk);
-
 	/* Unlock the SCCR. */
-	out_be32(&clk_r1->cark_sccrk, ~KAPWR_KEY);
-	out_be32(&clk_r1->cark_sccrk, KAPWR_KEY);
-	immr_unmap(clk_r1);
+	out_be32(&mpc8xx_immr->im_clkrstk.cark_sccrk, ~KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_clkrstk.cark_sccrk, KAPWR_KEY);
 
 	/* Force all 8xx processors to use divide by 16 processor clock. */
-	clk_r2 = immr_map(im_clkrst);
-	setbits32(&clk_r2->car_sccr, 0x02000000);
-	immr_unmap(clk_r2);
+	setbits32(&mpc8xx_immr->im_clkrst.car_sccr, 0x02000000);
 
 	/* Processor frequency is MHz.
 	 */
@@ -123,16 +99,18 @@ void __init mpc8xx_calibrate_decr(void)
 	 * we guarantee the registers are locked, then we unlock them
 	 * for our use.
 	 */
-	sys_tmr1 = immr_map(im_sitk);
-	out_be32(&sys_tmr1->sitk_tbscrk, ~KAPWR_KEY);
-	out_be32(&sys_tmr1->sitk_rtcsck, ~KAPWR_KEY);
-	out_be32(&sys_tmr1->sitk_tbk, ~KAPWR_KEY);
-	out_be32(&sys_tmr1->sitk_tbscrk, KAPWR_KEY);
-	out_be32(&sys_tmr1->sitk_rtcsck, KAPWR_KEY);
-	out_be32(&sys_tmr1->sitk_tbk, KAPWR_KEY);
-	immr_unmap(sys_tmr1);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_tbscrk, ~KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_rtcsck, ~KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_tbk, ~KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_tbscrk, KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_rtcsck, KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_tbk, KAPWR_KEY);
+
+	/* Disable the RTC one second and alarm interrupts. */
+	clrbits16(&mpc8xx_immr->im_sit.sit_rtcsc, (RTCSC_SIE | RTCSC_ALE));
 
-	init_internal_rtc();
+	/* Enable the RTC */
+	setbits16(&mpc8xx_immr->im_sit.sit_rtcsc, (RTCSC_RTF | RTCSC_RTE));
 
 	/* Enabling the decrementer also enables the timebase interrupts
 	 * (or from the other point of view, to get decrementer interrupts
@@ -144,10 +122,8 @@ void __init mpc8xx_calibrate_decr(void)
 	of_node_put(cpu);
 	irq = virq_to_hw(virq);
 
-	sys_tmr2 = immr_map(im_sit);
-	out_be16(&sys_tmr2->sit_tbscr, ((1 << (7 - (irq/2))) << 8) |
-					(TBSCR_TBF | TBSCR_TBE));
-	immr_unmap(sys_tmr2);
+	out_be16(&mpc8xx_immr->im_sit.sit_tbscr,
+		 ((1 << (7 - (irq / 2))) << 8) | (TBSCR_TBF | TBSCR_TBE));
 
 	if (request_irq(virq, timebase_interrupt, IRQF_NO_THREAD, "tbint",
 			NULL))
@@ -161,47 +137,36 @@ void __init mpc8xx_calibrate_decr(void)
 
 int mpc8xx_set_rtc_time(struct rtc_time *tm)
 {
-	sitk8xx_t __iomem *sys_tmr1;
-	sit8xx_t __iomem *sys_tmr2;
 	time64_t time;
 
-	sys_tmr1 = immr_map(im_sitk);
-	sys_tmr2 = immr_map(im_sit);
 	time = rtc_tm_to_time64(tm);
 
-	out_be32(&sys_tmr1->sitk_rtck, KAPWR_KEY);
-	out_be32(&sys_tmr2->sit_rtc, (u32)time);
-	out_be32(&sys_tmr1->sitk_rtck, ~KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_rtck, KAPWR_KEY);
+	out_be32(&mpc8xx_immr->im_sit.sit_rtc, (u32)time);
+	out_be32(&mpc8xx_immr->im_sitk.sitk_rtck, ~KAPWR_KEY);
 
-	immr_unmap(sys_tmr2);
-	immr_unmap(sys_tmr1);
 	return 0;
 }
 
 void mpc8xx_get_rtc_time(struct rtc_time *tm)
 {
 	unsigned long data;
-	sit8xx_t __iomem *sys_tmr = immr_map(im_sit);
 
 	/* Get time from the RTC. */
-	data = in_be32(&sys_tmr->sit_rtc);
+	data = in_be32(&mpc8xx_immr->im_sit.sit_rtc);
 	rtc_time64_to_tm(data, tm);
-	immr_unmap(sys_tmr);
 	return;
 }
 
 void __noreturn mpc8xx_restart(char *cmd)
 {
-	car8xx_t __iomem *clk_r = immr_map(im_clkrst);
-
-
 	local_irq_disable();
 
-	setbits32(&clk_r->car_plprcr, 0x00000080);
+	setbits32(&mpc8xx_immr->im_clkrst.car_plprcr, 0x00000080);
 	/* Clear the ME bit in MSR to cause checkstop on machine check
 	*/
 	mtmsr(mfmsr() & ~0x1000);
 
-	in_8(&clk_r->res[0]);
+	in_8(&mpc8xx_immr->im_clkrst.res[0]);
 	panic("Restart failed\n");
 }