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From: Dan Carpenter <dan.carpenter@oracle.com>
To: kvm-riscv@lists.infradead.org
Subject: [PATCH v18 14/18] RISC-V: KVM: Implement ONE REG interface for FP registers
Date: Wed, 19 May 2021 13:11:49 +0300	[thread overview]
Message-ID: <20210519101149.GS1955@kadam> (raw)
In-Reply-To: <20210519033553.1110536-15-anup.patel@wdc.com>

On Wed, May 19, 2021 at 09:05:49AM +0530, Anup Patel wrote:
>  static int kvm_riscv_vcpu_set_reg(struct kvm_vcpu *vcpu,
>  				  const struct kvm_one_reg *reg)
>  {
> @@ -427,6 +519,12 @@ static int kvm_riscv_vcpu_set_reg(struct kvm_vcpu *vcpu,
>  		return kvm_riscv_vcpu_set_reg_csr(vcpu, reg);
>  	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER)
>  		return kvm_riscv_vcpu_set_reg_timer(vcpu, reg);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F)
> +		return kvm_riscv_vcpu_set_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_F);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D)
> +		return kvm_riscv_vcpu_set_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_D);
>  
>  	return -EINVAL;
>  }
> @@ -442,6 +540,12 @@ static int kvm_riscv_vcpu_get_reg(struct kvm_vcpu *vcpu,
>  		return kvm_riscv_vcpu_get_reg_csr(vcpu, reg);
>  	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER)
>  		return kvm_riscv_vcpu_get_reg_timer(vcpu, reg);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F)
> +		return kvm_riscv_vcpu_get_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_F);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D)
> +		return kvm_riscv_vcpu_get_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_D);

These have become unwieldy.  Use a switch statement:

	switch (reg->id & KVM_REG_RISCV_TYPE_MASK) {
	case KVM_REG_RISCV_TIMER:
		return kvm_riscv_vcpu_get_reg_timer(vcpu, reg);
regards,
dan carpenter



WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Anup Patel <anup.patel@wdc.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Alexander Graf <graf@amazon.com>,
	Atish Patra <atish.patra@wdc.com>,
	Alistair Francis <Alistair.Francis@wdc.com>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Anup Patel <anup@brainfault.org>,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev
Subject: Re: [PATCH v18 14/18] RISC-V: KVM: Implement ONE REG interface for FP registers
Date: Wed, 19 May 2021 13:11:49 +0300	[thread overview]
Message-ID: <20210519101149.GS1955@kadam> (raw)
In-Reply-To: <20210519033553.1110536-15-anup.patel@wdc.com>

On Wed, May 19, 2021 at 09:05:49AM +0530, Anup Patel wrote:
>  static int kvm_riscv_vcpu_set_reg(struct kvm_vcpu *vcpu,
>  				  const struct kvm_one_reg *reg)
>  {
> @@ -427,6 +519,12 @@ static int kvm_riscv_vcpu_set_reg(struct kvm_vcpu *vcpu,
>  		return kvm_riscv_vcpu_set_reg_csr(vcpu, reg);
>  	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER)
>  		return kvm_riscv_vcpu_set_reg_timer(vcpu, reg);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F)
> +		return kvm_riscv_vcpu_set_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_F);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D)
> +		return kvm_riscv_vcpu_set_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_D);
>  
>  	return -EINVAL;
>  }
> @@ -442,6 +540,12 @@ static int kvm_riscv_vcpu_get_reg(struct kvm_vcpu *vcpu,
>  		return kvm_riscv_vcpu_get_reg_csr(vcpu, reg);
>  	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER)
>  		return kvm_riscv_vcpu_get_reg_timer(vcpu, reg);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F)
> +		return kvm_riscv_vcpu_get_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_F);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D)
> +		return kvm_riscv_vcpu_get_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_D);

These have become unwieldy.  Use a switch statement:

	switch (reg->id & KVM_REG_RISCV_TYPE_MASK) {
	case KVM_REG_RISCV_TIMER:
		return kvm_riscv_vcpu_get_reg_timer(vcpu, reg);
regards,
dan carpenter


WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Anup Patel <anup.patel@wdc.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Alexander Graf <graf@amazon.com>,
	Atish Patra <atish.patra@wdc.com>,
	Alistair Francis <Alistair.Francis@wdc.com>,
	Damien Le Moal <damien.lemoal@wdc.com>,
	Anup Patel <anup@brainfault.org>,
	kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
	linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev
Subject: Re: [PATCH v18 14/18] RISC-V: KVM: Implement ONE REG interface for FP registers
Date: Wed, 19 May 2021 13:11:49 +0300	[thread overview]
Message-ID: <20210519101149.GS1955@kadam> (raw)
In-Reply-To: <20210519033553.1110536-15-anup.patel@wdc.com>

On Wed, May 19, 2021 at 09:05:49AM +0530, Anup Patel wrote:
>  static int kvm_riscv_vcpu_set_reg(struct kvm_vcpu *vcpu,
>  				  const struct kvm_one_reg *reg)
>  {
> @@ -427,6 +519,12 @@ static int kvm_riscv_vcpu_set_reg(struct kvm_vcpu *vcpu,
>  		return kvm_riscv_vcpu_set_reg_csr(vcpu, reg);
>  	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER)
>  		return kvm_riscv_vcpu_set_reg_timer(vcpu, reg);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F)
> +		return kvm_riscv_vcpu_set_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_F);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D)
> +		return kvm_riscv_vcpu_set_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_D);
>  
>  	return -EINVAL;
>  }
> @@ -442,6 +540,12 @@ static int kvm_riscv_vcpu_get_reg(struct kvm_vcpu *vcpu,
>  		return kvm_riscv_vcpu_get_reg_csr(vcpu, reg);
>  	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER)
>  		return kvm_riscv_vcpu_get_reg_timer(vcpu, reg);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F)
> +		return kvm_riscv_vcpu_get_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_F);
> +	else if ((reg->id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D)
> +		return kvm_riscv_vcpu_get_reg_fp(vcpu, reg,
> +						 KVM_REG_RISCV_FP_D);

These have become unwieldy.  Use a switch statement:

	switch (reg->id & KVM_REG_RISCV_TYPE_MASK) {
	case KVM_REG_RISCV_TIMER:
		return kvm_riscv_vcpu_get_reg_timer(vcpu, reg);
regards,
dan carpenter


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  reply	other threads:[~2021-05-19 10:11 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-19  3:35 [PATCH v18 00/18] KVM RISC-V Support Anup Patel
2021-05-19  3:35 ` Anup Patel
2021-05-19  3:35 ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 01/18] RISC-V: Add hypervisor extension related CSR defines Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 02/18] RISC-V: Add initial skeletal KVM support Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  9:24   ` Dan Carpenter
2021-05-19  9:24     ` Dan Carpenter
2021-05-19  9:24     ` Dan Carpenter
2021-05-19 10:17   ` Dan Carpenter
2021-05-19 10:17     ` Dan Carpenter
2021-05-19 10:17     ` Dan Carpenter
2021-05-19  3:35 ` [PATCH v18 03/18] RISC-V: KVM: Implement VCPU create, init and destroy functions Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 04/18] RISC-V: KVM: Implement VCPU interrupts and requests handling Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 05/18] RISC-V: KVM: Implement KVM_GET_ONE_REG/KVM_SET_ONE_REG ioctls Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 06/18] RISC-V: KVM: Implement VCPU world-switch Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 07/18] RISC-V: KVM: Handle MMIO exits for VCPU Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 08/18] RISC-V: KVM: Handle WFI " Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 09/18] RISC-V: KVM: Implement VMID allocator Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 10/18] RISC-V: KVM: Implement stage2 page table programming Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 11/18] RISC-V: KVM: Implement MMU notifiers Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19 10:09   ` Dan Carpenter
2021-05-19 10:09     ` Dan Carpenter
2021-05-19 10:09     ` Dan Carpenter
2021-05-19  3:35 ` [PATCH v18 12/18] RISC-V: KVM: Add timer functionality Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 13/18] RISC-V: KVM: FP lazy save/restore Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 14/18] RISC-V: KVM: Implement ONE REG interface for FP registers Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19 10:11   ` Dan Carpenter [this message]
2021-05-19 10:11     ` Dan Carpenter
2021-05-19 10:11     ` Dan Carpenter
2021-05-20  6:09   ` Dan Carpenter
2021-05-20  6:09     ` Dan Carpenter
2021-05-20  6:09     ` Dan Carpenter
2021-05-19  3:35 ` [PATCH v18 15/18] RISC-V: KVM: Add SBI v0.1 support Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 16/18] RISC-V: KVM: Document RISC-V specific parts of KVM API Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 17/18] RISC-V: KVM: Move sources to drivers/staging directory Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35 ` [PATCH v18 18/18] RISC-V: KVM: Add MAINTAINERS entry Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  3:35   ` Anup Patel
2021-05-19  4:58 ` [PATCH v18 00/18] KVM RISC-V Support Greg Kroah-Hartman
2021-05-19  4:58   ` Greg Kroah-Hartman
2021-05-19  4:58   ` Greg Kroah-Hartman
2021-05-19  5:10   ` Anup Patel
2021-05-19  5:10     ` Anup Patel
2021-05-19  5:10     ` Anup Patel
2021-05-19  5:21     ` Greg Kroah-Hartman
2021-05-19  5:21       ` Greg Kroah-Hartman
2021-05-19  5:21       ` Greg Kroah-Hartman
2021-05-19 10:47       ` Greg Kroah-Hartman
2021-05-19 10:47         ` Greg Kroah-Hartman
2021-05-19 10:47         ` Greg Kroah-Hartman
2021-05-19 11:18         ` Paolo Bonzini
2021-05-19 11:18           ` Paolo Bonzini
2021-05-19 11:18           ` Paolo Bonzini
2021-05-19 12:23           ` Greg Kroah-Hartman
2021-05-19 12:23             ` Greg Kroah-Hartman
2021-05-19 12:23             ` Greg Kroah-Hartman
2021-05-19 13:29             ` Paolo Bonzini
2021-05-19 13:29               ` Paolo Bonzini
2021-05-19 13:29               ` Paolo Bonzini
2021-05-19 13:58               ` Greg Kroah-Hartman
2021-05-19 13:58                 ` Greg Kroah-Hartman
2021-05-19 13:58                 ` Greg Kroah-Hartman
2021-05-19 15:08                 ` Dan Carpenter
2021-05-19 15:08                   ` Dan Carpenter
2021-05-19 15:08                   ` Dan Carpenter
2021-05-19 15:26                   ` Paolo Bonzini
2021-05-19 15:26                     ` Paolo Bonzini
2021-05-19 15:26                     ` Paolo Bonzini
2021-05-21 17:13                 ` Palmer Dabbelt
2021-05-21 17:13                   ` Palmer Dabbelt
2021-05-21 17:13                   ` Palmer Dabbelt
2021-05-21 17:21                   ` Paolo Bonzini
2021-05-21 17:21                     ` Paolo Bonzini
2021-05-21 17:21                     ` Paolo Bonzini
2021-05-21 17:47                     ` Greg KH
2021-05-21 17:47                       ` Greg KH
2021-05-21 17:47                       ` Greg KH
2021-05-21 18:08                       ` Palmer Dabbelt
2021-05-21 18:08                         ` Palmer Dabbelt
2021-05-21 18:08                         ` Palmer Dabbelt
2021-05-21 18:25                         ` Greg KH
2021-05-21 18:25                           ` Greg KH
2021-05-21 18:25                           ` Greg KH
2021-05-21 20:25                       ` Paolo Bonzini
2021-05-21 20:25                         ` Paolo Bonzini
2021-05-21 20:25                         ` Paolo Bonzini
2021-05-24  7:09 ` Guo Ren
2021-05-24  7:09   ` Guo Ren
2021-05-24  7:09   ` Guo Ren
2021-05-24 22:57   ` Palmer Dabbelt
2021-05-24 22:57     ` Palmer Dabbelt
2021-05-24 22:57     ` Palmer Dabbelt
2021-05-24 23:08     ` Damien Le Moal
2021-05-24 23:08       ` Damien Le Moal
2021-05-24 23:08       ` Damien Le Moal
2021-05-25  7:37       ` Greg KH
2021-05-25  7:37         ` Greg KH
2021-05-25  7:37         ` Greg KH
2021-05-25  8:01         ` Damien Le Moal
2021-05-25  8:01           ` Damien Le Moal
2021-05-25  8:01           ` Damien Le Moal
2021-05-25  8:11           ` Greg KH
2021-05-25  8:11             ` Greg KH
2021-05-25  8:11             ` Greg KH
2021-05-25  8:24             ` Paolo Bonzini
2021-05-25  8:24               ` Paolo Bonzini
2021-05-25  8:24               ` Paolo Bonzini

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