Commit 9bd7dfe3 authored by Kan Liang's avatar Kan Liang Committed by Peter Zijlstra
Browse files

perf/x86/intel/uncore: Add Lunar Lake support 



The uncore subsystem for Lunar Lake is similar to the previous
Meteor Lake. The uncore PerfMon registers are located at both
MSR and MMIO space.

The ARB and iMC are kept. There is no difference from the Meteor Lake.
Move the global control initialization to the first box of the CBOX.

The sNCU is moved to the MMIO space.

The HBO is newly added and only be accessed from the MMIO space.

Signed-off-by: default avatarKan Liang <kan.liang@linux.intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240731141353.759643-3-kan.liang@linux.intel.com
parent efb0c9c0

arch/x86/events/intel/uncore.c

+6 −0
Original line number Diff line number Diff line
@@ -1816,6 +1816,11 @@ static const struct intel_uncore_init_fun mtl_uncore_init __initconst = { 
	.mmio_init = adl_uncore_mmio_init,

};



static const struct intel_uncore_init_fun lnl_uncore_init __initconst = {

	.cpu_init = lnl_uncore_cpu_init,

	.mmio_init = lnl_uncore_mmio_init,

};



static const struct intel_uncore_init_fun icx_uncore_init __initconst = {

	.cpu_init = icx_uncore_cpu_init,

	.pci_init = icx_uncore_pci_init,
@@ -1896,6 +1901,7 @@ static const struct x86_cpu_id intel_uncore_match[] __initconst = { 
	X86_MATCH_VFM(INTEL_ARROWLAKE,		&mtl_uncore_init),

	X86_MATCH_VFM(INTEL_ARROWLAKE_U,	&mtl_uncore_init),

	X86_MATCH_VFM(INTEL_ARROWLAKE_H,	&mtl_uncore_init),

	X86_MATCH_VFM(INTEL_LUNARLAKE_M,	&lnl_uncore_init),

	X86_MATCH_VFM(INTEL_SAPPHIRERAPIDS_X,	&spr_uncore_init),

	X86_MATCH_VFM(INTEL_EMERALDRAPIDS_X,	&spr_uncore_init),

	X86_MATCH_VFM(INTEL_GRANITERAPIDS_X,	&gnr_uncore_init),

arch/x86/events/intel/uncore.h

+2 −0
Original line number Diff line number Diff line
@@ -611,10 +611,12 @@ void skl_uncore_cpu_init(void); 
void icl_uncore_cpu_init(void);

void tgl_uncore_cpu_init(void);

void adl_uncore_cpu_init(void);

void lnl_uncore_cpu_init(void);

void mtl_uncore_cpu_init(void);

void tgl_uncore_mmio_init(void);

void tgl_l_uncore_mmio_init(void);

void adl_uncore_mmio_init(void);

void lnl_uncore_mmio_init(void);

int snb_pci2phy_map_init(int devid);



/* uncore_snbep.c */

arch/x86/events/intel/uncore_snb.c

+133 −0
Original line number Diff line number Diff line
@@ -252,6 +252,7 @@ DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23"); 
DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");

DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");

DEFINE_UNCORE_FORMAT_ATTR(threshold, threshold, "config:24-29");

DEFINE_UNCORE_FORMAT_ATTR(threshold2, threshold, "config:24-31");



/* Sandy Bridge uncore support */

static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
@@ -746,6 +747,34 @@ void mtl_uncore_cpu_init(void) 
	uncore_msr_uncores = mtl_msr_uncores;

}



static struct intel_uncore_type *lnl_msr_uncores[] = {

	&mtl_uncore_cbox,

	&mtl_uncore_arb,

	NULL

};



#define LNL_UNC_MSR_GLOBAL_CTL			0x240e



static void lnl_uncore_msr_init_box(struct intel_uncore_box *box)

{

	if (box->pmu->pmu_idx == 0)

		wrmsrl(LNL_UNC_MSR_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);

}



static struct intel_uncore_ops lnl_uncore_msr_ops = {

	.init_box	= lnl_uncore_msr_init_box,

	.disable_event	= snb_uncore_msr_disable_event,

	.enable_event	= snb_uncore_msr_enable_event,

	.read_counter	= uncore_msr_read_counter,

};



void lnl_uncore_cpu_init(void)

{

	mtl_uncore_cbox.num_boxes = 4;

	mtl_uncore_cbox.ops = &lnl_uncore_msr_ops;

	uncore_msr_uncores = lnl_msr_uncores;

}



enum {

	SNB_PCI_UNCORE_IMC,

};
@@ -1716,3 +1745,107 @@ void adl_uncore_mmio_init(void) 
}



/* end of Alder Lake MMIO uncore support */



/* Lunar Lake MMIO uncore support */

#define LNL_UNCORE_PCI_SAFBAR_OFFSET		0x68

#define LNL_UNCORE_MAP_SIZE			0x1000

#define LNL_UNCORE_SNCU_BASE			0xE4B000

#define LNL_UNCORE_SNCU_CTR			0x390

#define LNL_UNCORE_SNCU_CTRL			0x398

#define LNL_UNCORE_SNCU_BOX_CTL			0x380

#define LNL_UNCORE_GLOBAL_CTL			0x700

#define LNL_UNCORE_HBO_BASE			0xE54000

#define LNL_UNCORE_HBO_OFFSET			-4096

#define LNL_UNCORE_HBO_CTR			0x570

#define LNL_UNCORE_HBO_CTRL			0x550

#define LNL_UNCORE_HBO_BOX_CTL			0x548



#define LNL_UNC_CTL_THRESHOLD			0xff000000

#define LNL_UNC_RAW_EVENT_MASK			(SNB_UNC_CTL_EV_SEL_MASK | \

						 SNB_UNC_CTL_UMASK_MASK | \

						 SNB_UNC_CTL_EDGE_DET | \

						 SNB_UNC_CTL_INVERT | \

						 LNL_UNC_CTL_THRESHOLD)



static struct attribute *lnl_uncore_formats_attr[] = {

	&format_attr_event.attr,

	&format_attr_umask.attr,

	&format_attr_edge.attr,

	&format_attr_inv.attr,

	&format_attr_threshold2.attr,

	NULL

};



static const struct attribute_group lnl_uncore_format_group = {

	.name		= "format",

	.attrs		= lnl_uncore_formats_attr,

};



static void lnl_uncore_hbo_init_box(struct intel_uncore_box *box)

{

	uncore_get_box_mmio_addr(box, LNL_UNCORE_HBO_BASE,

				 LNL_UNCORE_PCI_SAFBAR_OFFSET,

				 LNL_UNCORE_HBO_OFFSET);

}



static struct intel_uncore_ops lnl_uncore_hbo_ops = {

	.init_box	= lnl_uncore_hbo_init_box,

	MMIO_UNCORE_COMMON_OPS()

};



static struct intel_uncore_type lnl_uncore_hbo = {

	.name		= "hbo",

	.num_counters   = 4,

	.num_boxes	= 2,

	.perf_ctr_bits	= 64,

	.perf_ctr	= LNL_UNCORE_HBO_CTR,

	.event_ctl	= LNL_UNCORE_HBO_CTRL,

	.event_mask	= LNL_UNC_RAW_EVENT_MASK,

	.box_ctl	= LNL_UNCORE_HBO_BOX_CTL,

	.mmio_map_size	= LNL_UNCORE_MAP_SIZE,

	.ops		= &lnl_uncore_hbo_ops,

	.format_group	= &lnl_uncore_format_group,

};



static void lnl_uncore_sncu_init_box(struct intel_uncore_box *box)

{

	uncore_get_box_mmio_addr(box, LNL_UNCORE_SNCU_BASE,

				 LNL_UNCORE_PCI_SAFBAR_OFFSET,

				 0);



	if (box->io_addr)

		writel(ADL_UNCORE_IMC_CTL_INT, box->io_addr + LNL_UNCORE_GLOBAL_CTL);

}



static struct intel_uncore_ops lnl_uncore_sncu_ops = {

	.init_box	= lnl_uncore_sncu_init_box,

	MMIO_UNCORE_COMMON_OPS()

};



static struct intel_uncore_type lnl_uncore_sncu = {

	.name		= "sncu",

	.num_counters   = 2,

	.num_boxes	= 1,

	.perf_ctr_bits	= 64,

	.perf_ctr	= LNL_UNCORE_SNCU_CTR,

	.event_ctl	= LNL_UNCORE_SNCU_CTRL,

	.event_mask	= LNL_UNC_RAW_EVENT_MASK,

	.box_ctl	= LNL_UNCORE_SNCU_BOX_CTL,

	.mmio_map_size	= LNL_UNCORE_MAP_SIZE,

	.ops		= &lnl_uncore_sncu_ops,

	.format_group	= &lnl_uncore_format_group,

};



static struct intel_uncore_type *lnl_mmio_uncores[] = {

	&adl_uncore_imc,

	&lnl_uncore_hbo,

	&lnl_uncore_sncu,

	NULL

};



void lnl_uncore_mmio_init(void)

{

	uncore_mmio_uncores = lnl_mmio_uncores;

}



/* end of Lunar Lake MMIO uncore support */