Unverified Commit bbd5669c authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!792 LoongArch: add ls2k500 bmc support 

Merge Pull Request from: @Hongchen_Zhang 
 
Add ls2k500 bmc support:
- add ls2k500sfb driver for ls2k500 bmc
- add ls2k500 bmc ipmi support
- enable CONFIG_FB_LS2K500 by default 
 
Link:https://gitee.com/openeuler/kernel/pulls/792

 

Reviewed-by: default avatarGuo Dongtai <guodongtai@kylinos.cn>
Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents c5fa8d99 0c4e4596

arch/loongarch/configs/loongson3_defconfig

+1 −0
Original line number Diff line number Diff line
@@ -867,6 +867,7 @@ CONFIG_DRM_QXL=m 
CONFIG_DRM_VIRTIO_GPU=m

CONFIG_FB_EFI=y

CONFIG_FB_RADEON=y

CONFIG_FB_LS2K500=m

# CONFIG_VGA_CONSOLE is not set

CONFIG_FRAMEBUFFER_CONSOLE=y

CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y

drivers/char/ipmi/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -13,6 +13,10 @@ ifdef CONFIG_PARISC 
ipmi_si-y += ipmi_si_parisc.o

endif



ifdef CONFIG_LOONGARCH

ipmi_si-y += ipmi_si_ls2k500.o

endif



obj-$(CONFIG_IPMI_HANDLER) += ipmi_msghandler.o

obj-$(CONFIG_IPMI_DEVICE_INTERFACE) += ipmi_devintf.o

obj-$(CONFIG_IPMI_SI) += ipmi_si.o

drivers/char/ipmi/btlock.h

0 → 100644
+88 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __BTLOCK_H__

#define __BTLOCK_H__



#include <linux/delay.h>

#include <asm/timex.h>



union btlock {

	char b[2];

	unsigned int u;

};



/*

 *wait delay us if lock failed.

 *lock fail if another one get lock or both try get lock.

 *c must compile b with byte access.

 */

static inline int btlock_lock(volatile union btlock *p, int n, unsigned char delay)

{

	union btlock t, t1;

	unsigned long flags;



	if (n > 1)

		return -1;

	delay |= 0x80;

	t1.u = 0;

	t1.b[n] = delay;



	while (1) {

		local_irq_save(flags);

		p->b[n] = delay;

		t.u = p->u;

		if (t.u == t1.u) {

			wmb(); /* flush write out immediately */

			local_irq_restore(flags);

			return 0;

		}

		p->b[n] = 0;

		t.u = p->u;

		wmb(); /* flush write out immediately */

		local_irq_restore(flags);

		ndelay(((t.b[1 - n] & 0x7f) + (get_cycles() & 1)) * 100);

	}

	return 0;

}



static inline int btlock_trylock(volatile union btlock *p, int n, unsigned char delay)

{

	union btlock t, t1;

	unsigned long flags;



	if (n > 1)

		return -1;

	delay |= 0x80;

	t1.u = 0;

	t1.b[n] = delay;



	local_irq_save(flags);

	p->b[n] = delay;

	t.u = p->u;

	if (t.u == t1.u) {

		wmb(); /* flush write out immediately */

		local_irq_restore(flags);

		return 0;

	}

	p->b[n] = 0;

	t.u = p->u;

	wmb(); /* flush write out immediately */

	local_irq_restore(flags);

	ndelay(((t.b[1 - n] & 0x7f) + (get_cycles() & 1)) * 100);

	return -1;

}



static inline int btlock_unlock(volatile union btlock *p, int n)

{

		p->b[n] = 0;

		wmb(); /* flush write out immediately */

		return p->u;

}



static inline int btlock_islocked(volatile union btlock *p, int n)

{

	union btlock t;



	t.u = p->u;

	return t.b[n] && !t.b[1 - n];

}

#endif

drivers/char/ipmi/ipmi_si.h

+8 −0
Original line number Diff line number Diff line
@@ -99,6 +99,14 @@ static inline void ipmi_si_parisc_init(void) { } 
static inline void ipmi_si_parisc_shutdown(void) { }

#endif



#ifdef CONFIG_LOONGARCH

int ipmi_si_ls2k500_init(void);

void ipmi_si_ls2k500_shutdown(void);

#else

static inline void ipmi_si_ls2k500_init(void) { }

static inline void ipmi_si_ls2k500_shutdown(void) { }

#endif



int ipmi_si_port_setup(struct si_sm_io *io);

int ipmi_si_mem_setup(struct si_sm_io *io);

drivers/char/ipmi/ipmi_si_intf.c

+4 −0
Original line number Diff line number Diff line
@@ -2106,6 +2106,8 @@ static int __init init_ipmi_si(void) 


	ipmi_si_platform_init();



	ipmi_si_ls2k500_init();



	ipmi_si_pci_init();



	ipmi_si_parisc_init();
@@ -2291,6 +2293,8 @@ static void cleanup_ipmi_si(void) 


	ipmi_si_parisc_shutdown();



	ipmi_si_ls2k500_shutdown();



	ipmi_si_platform_shutdown();



	mutex_lock(&smi_infos_lock);