From: Masato Noguchi Date: Tue, 24 Oct 2006 16:31:14 +0000 (+0200) Subject: [POWERPC] spufs: wrap mfc sdr access X-Git-Tag: firefly_0821_release~30985^2~47^2~109^2~180 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=24f43b33f74c8e8c8aabc40b728eaf9137802942;p=firefly-linux-kernel-4.4.55.git [POWERPC] spufs: wrap mfc sdr access SPRN_SDR1 and the SPE's MFC SDR are hypervisor resources and are not accessible from a logical partition. This change adds an access wrapper. When running on bare H/W, the spufs needs to only set the SPE's MFC SDR to the value of the PPE's SPRN_SDR1 once at SPE initialization, so this change renames mfc_sdr_set() to mfc_sdr_setup() and moves the access of SPRN_SDR1 into the mmio wrapper. It also removes the now unneeded member mfc_sdr_RW from struct spu_priv1_collapsed. Signed-off-by: Masato Noguchi Signed-off-by: Geoff Levand Signed-off-by: Arnd Bergmann -- Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index d0fb959e3ef1..d41ad1d6c04b 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -805,7 +805,7 @@ static int __init create_spu(struct device_node *spe) if (ret) goto out_unmap; spin_lock_init(&spu->register_lock); - spu_mfc_sdr_set(spu, mfspr(SPRN_SDR1)); + spu_mfc_sdr_setup(spu); spu_mfc_sr1_set(spu, 0x33); mutex_lock(&spu_mutex); diff --git a/arch/powerpc/platforms/cell/spu_priv1_mmio.c b/arch/powerpc/platforms/cell/spu_priv1_mmio.c index 71b69f0a1a48..90011f9aab3f 100644 --- a/arch/powerpc/platforms/cell/spu_priv1_mmio.c +++ b/arch/powerpc/platforms/cell/spu_priv1_mmio.c @@ -84,9 +84,9 @@ static void mfc_dsisr_set(struct spu *spu, u64 dsisr) out_be64(&spu->priv1->mfc_dsisr_RW, dsisr); } -static void mfc_sdr_set(struct spu *spu, u64 sdr) +static void mfc_sdr_setup(struct spu *spu) { - out_be64(&spu->priv1->mfc_sdr_RW, sdr); + out_be64(&spu->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1)); } static void mfc_sr1_set(struct spu *spu, u64 sr1) @@ -146,7 +146,7 @@ const struct spu_priv1_ops spu_priv1_mmio_ops = .mfc_dar_get = mfc_dar_get, .mfc_dsisr_get = mfc_dsisr_get, .mfc_dsisr_set = mfc_dsisr_set, - .mfc_sdr_set = mfc_sdr_set, + .mfc_sdr_setup = mfc_sdr_setup, .mfc_sr1_set = mfc_sr1_set, .mfc_sr1_get = mfc_sr1_get, .mfc_tclass_id_set = mfc_tclass_id_set, diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c index 0f782ca662ba..b85347ff6b22 100644 --- a/arch/powerpc/platforms/cell/spufs/switch.c +++ b/arch/powerpc/platforms/cell/spufs/switch.c @@ -2165,9 +2165,6 @@ static void init_priv1(struct spu_state *csa) MFC_STATE1_PROBLEM_STATE_MASK | MFC_STATE1_RELOCATE_MASK | MFC_STATE1_BUS_TLBIE_MASK; - /* Set storage description. */ - csa->priv1.mfc_sdr_RW = mfspr(SPRN_SDR1); - /* Enable OS-specific set of interrupts. */ csa->priv1.int_mask_class0_RW = CLASS0_ENABLE_DMA_ALIGNMENT_INTR | CLASS0_ENABLE_INVALID_DMA_COMMAND_INTR | diff --git a/include/asm-powerpc/spu_csa.h b/include/asm-powerpc/spu_csa.h index 964c2d38ccb7..bdbf906a767f 100644 --- a/include/asm-powerpc/spu_csa.h +++ b/include/asm-powerpc/spu_csa.h @@ -151,7 +151,6 @@ struct spu_priv1_collapsed { u64 mfc_fir_chkstp_enable_RW; u64 smf_sbi_signal_sel; u64 smf_ato_signal_sel; - u64 mfc_sdr_RW; u64 tlb_index_hint_RO; u64 tlb_index_W; u64 tlb_vpn_RW; diff --git a/include/asm-powerpc/spu_priv1.h b/include/asm-powerpc/spu_priv1.h index 300c458b6d06..4f9a04db99f7 100644 --- a/include/asm-powerpc/spu_priv1.h +++ b/include/asm-powerpc/spu_priv1.h @@ -37,7 +37,7 @@ struct spu_priv1_ops u64 (*mfc_dar_get) (struct spu *spu); u64 (*mfc_dsisr_get) (struct spu *spu); void (*mfc_dsisr_set) (struct spu *spu, u64 dsisr); - void (*mfc_sdr_set) (struct spu *spu, u64 sdr); + void (*mfc_sdr_setup) (struct spu *spu); void (*mfc_sr1_set) (struct spu *spu, u64 sr1); u64 (*mfc_sr1_get) (struct spu *spu); void (*mfc_tclass_id_set) (struct spu *spu, u64 tclass_id); @@ -112,9 +112,9 @@ spu_mfc_dsisr_set (struct spu *spu, u64 dsisr) } static inline void -spu_mfc_sdr_set (struct spu *spu, u64 sdr) +spu_mfc_sdr_setup (struct spu *spu) { - spu_priv1_ops->mfc_sdr_set(spu, sdr); + spu_priv1_ops->mfc_sdr_setup(spu); } static inline void