From: Haren Myneni <haren@linux.ibm.com> To: linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org, mpe@ellerman.id.au, herbert@gondor.apana.org.au, npiggin@gmail.com Cc: hbabu@us.ibm.com, haren@us.ibm.com Subject: [PATCH v6 04/17] powerpc/vas: Add platform specific user window operations Date: Thu, 17 Jun 2021 13:31:06 -0700 [thread overview] Message-ID: <f85091f4ace67f951ac04d60394d67b21e2f5d3c.camel@linux.ibm.com> (raw) In-Reply-To: <827bf56dce09620ebecd8a00a5f97105187a6205.camel@linux.ibm.com> PowerNV uses registers to open/close VAS windows, and getting the paste address. Whereas the hypervisor calls are used on PowerVM. This patch adds the platform specific user space window operations and register with the common VAS user space interface. Signed-off-by: Haren Myneni <haren@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/include/asm/vas.h | 16 +++++-- arch/powerpc/platforms/book3s/vas-api.c | 53 +++++++++++++-------- arch/powerpc/platforms/powernv/vas-window.c | 45 ++++++++++++++++- arch/powerpc/platforms/powernv/vas.h | 2 + 4 files changed, 91 insertions(+), 25 deletions(-) diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h index 6076adf9ab4f..163a8bb85d02 100644 --- a/arch/powerpc/include/asm/vas.h +++ b/arch/powerpc/include/asm/vas.h @@ -5,6 +5,7 @@ #ifndef _ASM_POWERPC_VAS_H #define _ASM_POWERPC_VAS_H +#include <uapi/asm/vas-api.h> struct vas_window; @@ -48,6 +49,16 @@ enum vas_cop_type { VAS_COP_TYPE_MAX, }; +/* + * User space window operations used for powernv and powerVM + */ +struct vas_user_win_ops { + struct vas_window * (*open_win)(int vas_id, u64 flags, + enum vas_cop_type); + u64 (*paste_addr)(struct vas_window *); + int (*close_win)(struct vas_window *); +}; + /* * Receive window attributes specified by the (in-kernel) owner of window. */ @@ -162,8 +173,6 @@ int vas_copy_crb(void *crb, int offset); */ int vas_paste_crb(struct vas_window *win, int offset, bool re); -void vas_win_paste_addr(struct vas_window *window, u64 *addr, - int *len); int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type, const char *name); void vas_unregister_api_powernv(void); @@ -177,7 +186,8 @@ void vas_unregister_api_powernv(void); * used for others in future. */ int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type, - const char *name); + const char *name, + const struct vas_user_win_ops *vops); void vas_unregister_coproc_api(void); #endif /* __ASM_POWERPC_VAS_H */ diff --git a/arch/powerpc/platforms/book3s/vas-api.c b/arch/powerpc/platforms/book3s/vas-api.c index 72c126d87216..ad566464b55b 100644 --- a/arch/powerpc/platforms/book3s/vas-api.c +++ b/arch/powerpc/platforms/book3s/vas-api.c @@ -42,6 +42,7 @@ static struct coproc_dev { dev_t devt; struct class *class; enum vas_cop_type cop_type; + const struct vas_user_win_ops *vops; } coproc_device; struct coproc_instance { @@ -72,11 +73,10 @@ static int coproc_open(struct inode *inode, struct file *fp) static int coproc_ioc_tx_win_open(struct file *fp, unsigned long arg) { void __user *uptr = (void __user *)arg; - struct vas_tx_win_attr txattr = {}; struct vas_tx_win_open_attr uattr; struct coproc_instance *cp_inst; struct vas_window *txwin; - int rc, vasid; + int rc; cp_inst = fp->private_data; @@ -93,27 +93,20 @@ static int coproc_ioc_tx_win_open(struct file *fp, unsigned long arg) } if (uattr.version != 1) { - pr_err("Invalid version\n"); + pr_err("Invalid window open API version\n"); return -EINVAL; } - vasid = uattr.vas_id; - - vas_init_tx_win_attr(&txattr, cp_inst->coproc->cop_type); - - txattr.lpid = mfspr(SPRN_LPID); - txattr.pidr = mfspr(SPRN_PID); - txattr.user_win = true; - txattr.rsvd_txbuf_count = false; - txattr.pswid = false; - - pr_devel("Pid %d: Opening txwin, PIDR %ld\n", txattr.pidr, - mfspr(SPRN_PID)); + if (!cp_inst->coproc->vops && !cp_inst->coproc->vops->open_win) { + pr_err("VAS API is not registered\n"); + return -EACCES; + } - txwin = vas_tx_win_open(vasid, cp_inst->coproc->cop_type, &txattr); + txwin = cp_inst->coproc->vops->open_win(uattr.vas_id, uattr.flags, + cp_inst->coproc->cop_type); if (IS_ERR(txwin)) { - pr_err("%s() vas_tx_win_open() failed, %ld\n", __func__, - PTR_ERR(txwin)); + pr_err("%s() VAS window open failed, %ld\n", __func__, + PTR_ERR(txwin)); return PTR_ERR(txwin); } @@ -125,9 +118,15 @@ static int coproc_ioc_tx_win_open(struct file *fp, unsigned long arg) static int coproc_release(struct inode *inode, struct file *fp) { struct coproc_instance *cp_inst = fp->private_data; + int rc; if (cp_inst->txwin) { - vas_win_close(cp_inst->txwin); + if (cp_inst->coproc->vops && + cp_inst->coproc->vops->close_win) { + rc = cp_inst->coproc->vops->close_win(cp_inst->txwin); + if (rc) + return rc; + } cp_inst->txwin = NULL; } @@ -168,7 +167,17 @@ static int coproc_mmap(struct file *fp, struct vm_area_struct *vma) return -EINVAL; } - vas_win_paste_addr(txwin, &paste_addr, NULL); + if (!cp_inst->coproc->vops && !cp_inst->coproc->vops->paste_addr) { + pr_err("%s(): VAS API is not registered\n", __func__); + return -EACCES; + } + + paste_addr = cp_inst->coproc->vops->paste_addr(txwin); + if (!paste_addr) { + pr_err("%s(): Window paste address failed\n", __func__); + return -EINVAL; + } + pfn = paste_addr >> PAGE_SHIFT; /* flags, page_prot from cxl_mmap(), except we want cachable */ @@ -208,7 +217,8 @@ static struct file_operations coproc_fops = { * extended to other coprocessor types later. */ int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type, - const char *name) + const char *name, + const struct vas_user_win_ops *vops) { int rc = -EINVAL; dev_t devno; @@ -230,6 +240,7 @@ int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type, } coproc_device.class->devnode = coproc_devnode; coproc_device.cop_type = cop_type; + coproc_device.vops = vops; coproc_fops.owner = mod; cdev_init(&coproc_device.cdev, &coproc_fops); diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index 41712b4b268e..26440da4fc6a 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -16,6 +16,7 @@ #include <linux/mmu_context.h> #include <asm/switch_to.h> #include <asm/ppc-opcode.h> +#include <asm/vas.h> #include "vas.h" #include "copy-paste.h" @@ -1443,6 +1444,48 @@ struct vas_window *vas_pswid_to_window(struct vas_instance *vinst, return window; } +static struct vas_window *vas_user_win_open(int vas_id, u64 flags, + enum vas_cop_type cop_type) +{ + struct vas_tx_win_attr txattr = {}; + + vas_init_tx_win_attr(&txattr, cop_type); + + txattr.lpid = mfspr(SPRN_LPID); + txattr.pidr = mfspr(SPRN_PID); + txattr.user_win = true; + txattr.rsvd_txbuf_count = false; + txattr.pswid = false; + + pr_devel("Pid %d: Opening txwin, PIDR %ld\n", txattr.pidr, + mfspr(SPRN_PID)); + + return vas_tx_win_open(vas_id, cop_type, &txattr); +} + +static u64 vas_user_win_paste_addr(struct vas_window *win) +{ + u64 paste_addr; + + vas_win_paste_addr(win, &paste_addr, NULL); + + return paste_addr; +} + +static int vas_user_win_close(struct vas_window *txwin) +{ + + vas_win_close(txwin); + + return 0; +} + +static const struct vas_user_win_ops vops = { + .open_win = vas_user_win_open, + .paste_addr = vas_user_win_paste_addr, + .close_win = vas_user_win_close, +}; + /* * Supporting only nx-gzip coprocessor type now, but this API code * extended to other coprocessor types later. @@ -1451,7 +1494,7 @@ int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type, const char *name) { - return vas_register_coproc_api(mod, cop_type, name); + return vas_register_coproc_api(mod, cop_type, name, &vops); } EXPORT_SYMBOL_GPL(vas_register_api_powernv); diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h index e5027c4226df..c2b1e12efca5 100644 --- a/arch/powerpc/platforms/powernv/vas.h +++ b/arch/powerpc/platforms/powernv/vas.h @@ -438,6 +438,8 @@ extern irqreturn_t vas_fault_handler(int irq, void *dev_id); extern void vas_return_credit(struct vas_window *window, bool tx); extern struct vas_window *vas_pswid_to_window(struct vas_instance *vinst, uint32_t pswid); +extern void vas_win_paste_addr(struct vas_window *window, u64 *addr, + int *len); static inline int vas_window_pid(struct vas_window *window) { -- 2.18.2
WARNING: multiple messages have this Message-ID (diff)
From: Haren Myneni <haren@linux.ibm.com> To: linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org, mpe@ellerman.id.au, herbert@gondor.apana.org.au, npiggin@gmail.com Subject: [PATCH v6 04/17] powerpc/vas: Add platform specific user window operations Date: Thu, 17 Jun 2021 13:31:06 -0700 [thread overview] Message-ID: <f85091f4ace67f951ac04d60394d67b21e2f5d3c.camel@linux.ibm.com> (raw) In-Reply-To: <827bf56dce09620ebecd8a00a5f97105187a6205.camel@linux.ibm.com> PowerNV uses registers to open/close VAS windows, and getting the paste address. Whereas the hypervisor calls are used on PowerVM. This patch adds the platform specific user space window operations and register with the common VAS user space interface. Signed-off-by: Haren Myneni <haren@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/include/asm/vas.h | 16 +++++-- arch/powerpc/platforms/book3s/vas-api.c | 53 +++++++++++++-------- arch/powerpc/platforms/powernv/vas-window.c | 45 ++++++++++++++++- arch/powerpc/platforms/powernv/vas.h | 2 + 4 files changed, 91 insertions(+), 25 deletions(-) diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h index 6076adf9ab4f..163a8bb85d02 100644 --- a/arch/powerpc/include/asm/vas.h +++ b/arch/powerpc/include/asm/vas.h @@ -5,6 +5,7 @@ #ifndef _ASM_POWERPC_VAS_H #define _ASM_POWERPC_VAS_H +#include <uapi/asm/vas-api.h> struct vas_window; @@ -48,6 +49,16 @@ enum vas_cop_type { VAS_COP_TYPE_MAX, }; +/* + * User space window operations used for powernv and powerVM + */ +struct vas_user_win_ops { + struct vas_window * (*open_win)(int vas_id, u64 flags, + enum vas_cop_type); + u64 (*paste_addr)(struct vas_window *); + int (*close_win)(struct vas_window *); +}; + /* * Receive window attributes specified by the (in-kernel) owner of window. */ @@ -162,8 +173,6 @@ int vas_copy_crb(void *crb, int offset); */ int vas_paste_crb(struct vas_window *win, int offset, bool re); -void vas_win_paste_addr(struct vas_window *window, u64 *addr, - int *len); int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type, const char *name); void vas_unregister_api_powernv(void); @@ -177,7 +186,8 @@ void vas_unregister_api_powernv(void); * used for others in future. */ int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type, - const char *name); + const char *name, + const struct vas_user_win_ops *vops); void vas_unregister_coproc_api(void); #endif /* __ASM_POWERPC_VAS_H */ diff --git a/arch/powerpc/platforms/book3s/vas-api.c b/arch/powerpc/platforms/book3s/vas-api.c index 72c126d87216..ad566464b55b 100644 --- a/arch/powerpc/platforms/book3s/vas-api.c +++ b/arch/powerpc/platforms/book3s/vas-api.c @@ -42,6 +42,7 @@ static struct coproc_dev { dev_t devt; struct class *class; enum vas_cop_type cop_type; + const struct vas_user_win_ops *vops; } coproc_device; struct coproc_instance { @@ -72,11 +73,10 @@ static int coproc_open(struct inode *inode, struct file *fp) static int coproc_ioc_tx_win_open(struct file *fp, unsigned long arg) { void __user *uptr = (void __user *)arg; - struct vas_tx_win_attr txattr = {}; struct vas_tx_win_open_attr uattr; struct coproc_instance *cp_inst; struct vas_window *txwin; - int rc, vasid; + int rc; cp_inst = fp->private_data; @@ -93,27 +93,20 @@ static int coproc_ioc_tx_win_open(struct file *fp, unsigned long arg) } if (uattr.version != 1) { - pr_err("Invalid version\n"); + pr_err("Invalid window open API version\n"); return -EINVAL; } - vasid = uattr.vas_id; - - vas_init_tx_win_attr(&txattr, cp_inst->coproc->cop_type); - - txattr.lpid = mfspr(SPRN_LPID); - txattr.pidr = mfspr(SPRN_PID); - txattr.user_win = true; - txattr.rsvd_txbuf_count = false; - txattr.pswid = false; - - pr_devel("Pid %d: Opening txwin, PIDR %ld\n", txattr.pidr, - mfspr(SPRN_PID)); + if (!cp_inst->coproc->vops && !cp_inst->coproc->vops->open_win) { + pr_err("VAS API is not registered\n"); + return -EACCES; + } - txwin = vas_tx_win_open(vasid, cp_inst->coproc->cop_type, &txattr); + txwin = cp_inst->coproc->vops->open_win(uattr.vas_id, uattr.flags, + cp_inst->coproc->cop_type); if (IS_ERR(txwin)) { - pr_err("%s() vas_tx_win_open() failed, %ld\n", __func__, - PTR_ERR(txwin)); + pr_err("%s() VAS window open failed, %ld\n", __func__, + PTR_ERR(txwin)); return PTR_ERR(txwin); } @@ -125,9 +118,15 @@ static int coproc_ioc_tx_win_open(struct file *fp, unsigned long arg) static int coproc_release(struct inode *inode, struct file *fp) { struct coproc_instance *cp_inst = fp->private_data; + int rc; if (cp_inst->txwin) { - vas_win_close(cp_inst->txwin); + if (cp_inst->coproc->vops && + cp_inst->coproc->vops->close_win) { + rc = cp_inst->coproc->vops->close_win(cp_inst->txwin); + if (rc) + return rc; + } cp_inst->txwin = NULL; } @@ -168,7 +167,17 @@ static int coproc_mmap(struct file *fp, struct vm_area_struct *vma) return -EINVAL; } - vas_win_paste_addr(txwin, &paste_addr, NULL); + if (!cp_inst->coproc->vops && !cp_inst->coproc->vops->paste_addr) { + pr_err("%s(): VAS API is not registered\n", __func__); + return -EACCES; + } + + paste_addr = cp_inst->coproc->vops->paste_addr(txwin); + if (!paste_addr) { + pr_err("%s(): Window paste address failed\n", __func__); + return -EINVAL; + } + pfn = paste_addr >> PAGE_SHIFT; /* flags, page_prot from cxl_mmap(), except we want cachable */ @@ -208,7 +217,8 @@ static struct file_operations coproc_fops = { * extended to other coprocessor types later. */ int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type, - const char *name) + const char *name, + const struct vas_user_win_ops *vops) { int rc = -EINVAL; dev_t devno; @@ -230,6 +240,7 @@ int vas_register_coproc_api(struct module *mod, enum vas_cop_type cop_type, } coproc_device.class->devnode = coproc_devnode; coproc_device.cop_type = cop_type; + coproc_device.vops = vops; coproc_fops.owner = mod; cdev_init(&coproc_device.cdev, &coproc_fops); diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index 41712b4b268e..26440da4fc6a 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -16,6 +16,7 @@ #include <linux/mmu_context.h> #include <asm/switch_to.h> #include <asm/ppc-opcode.h> +#include <asm/vas.h> #include "vas.h" #include "copy-paste.h" @@ -1443,6 +1444,48 @@ struct vas_window *vas_pswid_to_window(struct vas_instance *vinst, return window; } +static struct vas_window *vas_user_win_open(int vas_id, u64 flags, + enum vas_cop_type cop_type) +{ + struct vas_tx_win_attr txattr = {}; + + vas_init_tx_win_attr(&txattr, cop_type); + + txattr.lpid = mfspr(SPRN_LPID); + txattr.pidr = mfspr(SPRN_PID); + txattr.user_win = true; + txattr.rsvd_txbuf_count = false; + txattr.pswid = false; + + pr_devel("Pid %d: Opening txwin, PIDR %ld\n", txattr.pidr, + mfspr(SPRN_PID)); + + return vas_tx_win_open(vas_id, cop_type, &txattr); +} + +static u64 vas_user_win_paste_addr(struct vas_window *win) +{ + u64 paste_addr; + + vas_win_paste_addr(win, &paste_addr, NULL); + + return paste_addr; +} + +static int vas_user_win_close(struct vas_window *txwin) +{ + + vas_win_close(txwin); + + return 0; +} + +static const struct vas_user_win_ops vops = { + .open_win = vas_user_win_open, + .paste_addr = vas_user_win_paste_addr, + .close_win = vas_user_win_close, +}; + /* * Supporting only nx-gzip coprocessor type now, but this API code * extended to other coprocessor types later. @@ -1451,7 +1494,7 @@ int vas_register_api_powernv(struct module *mod, enum vas_cop_type cop_type, const char *name) { - return vas_register_coproc_api(mod, cop_type, name); + return vas_register_coproc_api(mod, cop_type, name, &vops); } EXPORT_SYMBOL_GPL(vas_register_api_powernv); diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h index e5027c4226df..c2b1e12efca5 100644 --- a/arch/powerpc/platforms/powernv/vas.h +++ b/arch/powerpc/platforms/powernv/vas.h @@ -438,6 +438,8 @@ extern irqreturn_t vas_fault_handler(int irq, void *dev_id); extern void vas_return_credit(struct vas_window *window, bool tx); extern struct vas_window *vas_pswid_to_window(struct vas_instance *vinst, uint32_t pswid); +extern void vas_win_paste_addr(struct vas_window *window, u64 *addr, + int *len); static inline int vas_window_pid(struct vas_window *window) { -- 2.18.2
next prev parent reply other threads:[~2021-06-17 20:31 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-17 20:24 [PATCH v6 00/17] Enable VAS and NX-GZIP support on PowerVM Haren Myneni 2021-06-17 20:24 ` Haren Myneni 2021-06-17 20:29 ` [PATCH v6 01/17] powerpc/powernv/vas: Release reference to tgid during window close Haren Myneni 2021-06-17 20:29 ` Haren Myneni 2021-06-17 20:29 ` [PATCH v6 02/17] powerpc/vas: Move VAS API to book3s common platform Haren Myneni 2021-06-17 20:29 ` Haren Myneni 2021-06-17 20:30 ` [PATCH v6 03/17] powerpc/powernv/vas: Rename register/unregister functions Haren Myneni 2021-06-17 20:30 ` Haren Myneni 2021-06-17 20:31 ` Haren Myneni [this message] 2021-06-17 20:31 ` [PATCH v6 04/17] powerpc/vas: Add platform specific user window operations Haren Myneni 2021-06-17 23:27 ` Nicholas Piggin 2021-06-17 23:27 ` Nicholas Piggin 2021-06-17 20:31 ` [PATCH v6 05/17] powerpc/vas: Create take/drop pid and mm reference functions Haren Myneni 2021-06-17 20:31 ` Haren Myneni 2021-06-17 20:32 ` [PATCH v6 06/17] powerpc/vas: Move update_csb/dump_crb to common book3s platform Haren Myneni 2021-06-17 20:32 ` Haren Myneni 2021-06-17 23:10 ` Nicholas Piggin 2021-06-17 23:10 ` Nicholas Piggin 2021-06-17 20:33 ` [PATCH v6 07/17] powerpc/vas: Define and use common vas_window struct Haren Myneni 2021-06-17 20:33 ` Haren Myneni 2021-06-17 20:34 ` [PATCH v6 08/17] powerpc/pseries/vas: Define VAS/NXGZIP hcalls and structs Haren Myneni 2021-06-17 20:34 ` Haren Myneni 2021-06-17 20:34 ` [PATCH v6 09/17] powerpc/vas: Define QoS credit flag to allocate window Haren Myneni 2021-06-17 20:34 ` Haren Myneni 2021-06-17 20:35 ` [PATCH v6 10/17] powerpc/pseries/vas: Add hcall wrappers for VAS handling Haren Myneni 2021-06-17 20:35 ` Haren Myneni 2021-06-17 20:35 ` [PATCH v6 11/17] powerpc/pseries/vas: Implement getting capabilities from hypervisor Haren Myneni 2021-06-17 20:35 ` Haren Myneni 2021-06-17 23:24 ` Nicholas Piggin 2021-06-17 23:24 ` Nicholas Piggin 2021-06-17 20:36 ` [PATCH v6 12/17] powerpc/pseries/vas: Integrate API with open/close windows Haren Myneni 2021-06-17 20:36 ` Haren Myneni 2021-06-17 23:22 ` Nicholas Piggin 2021-06-17 23:22 ` Nicholas Piggin 2021-06-18 7:49 ` Haren Myneni 2021-06-18 7:49 ` Haren Myneni 2021-06-19 3:22 ` Nicholas Piggin 2021-06-19 3:22 ` Nicholas Piggin 2021-06-17 20:37 ` [PATCH v6 13/17] powerpc/pseries/vas: Setup IRQ and fault handling Haren Myneni 2021-06-17 20:37 ` Haren Myneni 2021-06-17 23:34 ` Nicholas Piggin 2021-06-17 23:34 ` Nicholas Piggin 2021-06-18 2:09 ` Haren Myneni 2021-06-18 2:09 ` Haren Myneni 2021-06-19 3:22 ` Nicholas Piggin 2021-06-19 3:22 ` Nicholas Piggin 2021-06-17 20:37 ` [PATCH v6 14/17] crypto/nx: Rename nx-842-pseries file name to nx-common-pseries Haren Myneni 2021-06-17 20:37 ` Haren Myneni 2021-06-17 20:38 ` [PATCH v6 15/17] crypto/nx: Get NX capabilities for GZIP coprocessor type Haren Myneni 2021-06-17 20:38 ` Haren Myneni 2021-06-17 23:35 ` Nicholas Piggin 2021-06-17 23:35 ` Nicholas Piggin 2021-06-17 20:39 ` [PATCH v6 16/17] crypto/nx: Add sysfs interface to export NX capabilities Haren Myneni 2021-06-17 20:39 ` Haren Myneni 2021-06-17 23:41 ` Nicholas Piggin 2021-06-17 23:41 ` Nicholas Piggin 2021-06-17 20:39 ` [PATCH v6 17/17] crypto/nx: Register and unregister VAS interface on PowerVM Haren Myneni 2021-06-17 20:39 ` Haren Myneni 2021-06-24 14:03 ` [PATCH v6 00/17] Enable VAS and NX-GZIP support " Michael Ellerman 2021-06-24 14:03 ` Michael Ellerman
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