Commit 534ca01e authored by Pu Wen's avatar Pu Wen
Browse files

x86/resctrl: Add Hygon QoS support 

hygon inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I92HAJ


CVE: NA

---------------------------

Add support for Hygon QoS feature.

Signed-off-by: default avatarPu Wen <puwen@hygon.cn>
parent ecb0378f

arch/x86/kernel/cpu/hygon.c

+2 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#ifdef CONFIG_X86_64

# include <asm/set_memory.h>

#endif

#include <asm/resctrl.h>



#include "cpu.h"
@@ -264,6 +265,7 @@ static void bsp_init_hygon(struct cpuinfo_x86 *c) 
			x86_amd_ls_cfg_ssbd_mask = 1ULL << 10;

		}

	}

	resctrl_cpu_detect(c);

}



static void early_init_hygon(struct cpuinfo_x86 *c)

arch/x86/kernel/cpu/resctrl/core.c

+7 −3
Original line number Diff line number Diff line
@@ -834,7 +834,8 @@ static __init bool get_mem_config(void) 


	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)

		return __get_mem_config_intel(&rdt_resources_all[RDT_RESOURCE_MBA]);

	else if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)

	else if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||

		 boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)

		return __rdt_get_mem_config_amd(&rdt_resources_all[RDT_RESOURCE_MBA]);



	return false;
@@ -960,7 +961,8 @@ static __init void rdt_init_res_defs(void) 
{

	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)

		rdt_init_res_defs_intel();

	else if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)

	else if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||

		 boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)

		rdt_init_res_defs_amd();

}
@@ -991,7 +993,9 @@ void resctrl_cpu_detect(struct cpuinfo_x86 *c) 
		c->x86_cache_occ_scale = ebx;

		c->x86_cache_mbm_width_offset = eax & 0xff;



		if (c->x86_vendor == X86_VENDOR_AMD && !c->x86_cache_mbm_width_offset)

		if ((c->x86_vendor == X86_VENDOR_AMD ||

		     c->x86_vendor == X86_VENDOR_HYGON) &&

		    !c->x86_cache_mbm_width_offset)

			c->x86_cache_mbm_width_offset = MBM_CNTR_WIDTH_OFFSET_AMD;

	}

}