x11-drivers/nvidia-drivers: fix pax patch bug 604048

Package-Manager: Portage-2.3.3, Repoman-2.3.1

2 files changed, 408 insertions, 2 deletions

diff --git a/x11-drivers/nvidia-drivers/files/nvidia-drivers-375.20-pax.patch b/x11-drivers/nvidia-drivers/files/nvidia-drivers-375.20-pax.patch
new file mode 100644
index 000000000000..9dd245a1f16a
--- /dev/null
+++ b/x11-drivers/nvidia-drivers/files/nvidia-drivers-375.20-pax.patch
@@ -0,0 +1,406 @@
+diff -urp work.orig/kernel/common/inc/nv-linux.h work/kernel/common/inc/nv-linux.h
+--- work.orig/kernel/common/inc/nv-linux.h	2016-11-27 21:56:50.391617167 +0100
++++ work/kernel/common/inc/nv-linux.h	2016-11-27 22:04:14.045516163 +0100
+@@ -1310,7 +1310,8 @@ extern void *nvidia_stack_t_cache;
+ #if (NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT == 5)
+ #define NV_KMEM_CACHE_CREATE_FULL(name, size, align, flags, ctor) \
+     kmem_cache_create(name, size, align, flags, ctor)
+-
++#define NV_KMEM_CACHE_CREATE_FULL_USERCOPY(name, size, align, flags, useroffset, usersize, ctor) \
++    kmem_cache_create_usercopy(name, size, align, flags, useroffset, usersize, ctor)
+ #else
+ #define NV_KMEM_CACHE_CREATE_FULL(name, size, align, flags, ctor) \
+     kmem_cache_create(name, size, align, flags, ctor, NULL)
+@@ -1319,6 +1320,14 @@ extern void *nvidia_stack_t_cache;
+ #define NV_KMEM_CACHE_CREATE(name, type)    \
+     NV_KMEM_CACHE_CREATE_FULL(name, sizeof(type), 0, 0, NULL)
+ 
++#ifdef SLAB_USERCOPY
++#define NV_KMEM_CACHE_CREATE_USERCOPY(name, type)    \
++    NV_KMEM_CACHE_CREATE_FULL(name, sizeof(type), 0, SLAB_USERCOPY, NULL)
++#else
++#define NV_KMEM_CACHE_CREATE_USERCOPY(name, type)    \
++    NV_KMEM_CACHE_CREATE_FULL_USERCOPY(name, sizeof(type), 0, 0, 0, sizeof(type), NULL)
++#endif
++
+ #define NV_KMEM_CACHE_DESTROY(kmem_cache)   \
+     kmem_cache_destroy(kmem_cache)
+ 
+diff -urp work.orig/kernel/common/inc/nv-modeset-interface.h work/kernel/common/inc/nv-modeset-interface.h
+--- work.orig/kernel/common/inc/nv-modeset-interface.h	2016-11-27 21:56:50.391617167 +0100
++++ work/kernel/common/inc/nv-modeset-interface.h	2016-11-27 21:54:23.971706350 +0100
+@@ -72,7 +72,7 @@ typedef struct {
+      * mix nvidia and nvidia-modeset kernel modules from different
+      * releases.
+      */
+-    const char *version_string;
++//    const char *version_string;
+ 
+     /*
+      * Return system information.
+@@ -117,6 +117,6 @@ typedef struct {
+ 
+ } nvidia_modeset_rm_ops_t;
+ 
+-NV_STATUS nvidia_get_rm_ops(nvidia_modeset_rm_ops_t *rm_ops);
++NV_STATUS nvidia_get_rm_ops(const nvidia_modeset_rm_ops_t **rm_ops, const char **version_string);
+ 
+ #endif /* _NV_MODESET_INTERFACE_H_ */
+diff -urp work.orig/kernel/common/inc/nv-register-module.h work/kernel/common/inc/nv-register-module.h
+--- work.orig/kernel/common/inc/nv-register-module.h	2016-11-27 21:56:50.391617167 +0100
++++ work/kernel/common/inc/nv-register-module.h	2016-11-27 21:54:23.971706350 +0100
+@@ -34,7 +34,7 @@ typedef struct nvidia_module_s {
+     int (*ioctl)(struct inode *, struct file * file, unsigned int cmd, unsigned long arg);
+     unsigned int (*poll)(struct file * file, poll_table *wait);
+ 
+-} nvidia_module_t;
++} __do_const nvidia_module_t;
+ 
+ int nvidia_register_module(nvidia_module_t *);
+ int nvidia_unregister_module(nvidia_module_t *);
+diff -urp work.orig/kernel/nvidia/nv.c work/kernel/nvidia/nv.c
+--- work.orig/kernel/nvidia/nv.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia/nv.c	2016-11-27 21:54:23.971706350 +0100
+@@ -666,7 +666,7 @@ int __init nvidia_init_module(void)
+     NV_SPIN_LOCK_INIT(&km_lock);
+ #endif
+ 
+-    nvidia_stack_t_cache = NV_KMEM_CACHE_CREATE(nvidia_stack_cache_name,
++    nvidia_stack_t_cache = NV_KMEM_CACHE_CREATE_USERCOPY(nvidia_stack_cache_name,
+                                                 nvidia_stack_t);
+     if (nvidia_stack_t_cache == NULL)
+     {
+diff -urp work.orig/kernel/nvidia/nv-chrdev.c work/kernel/nvidia/nv-chrdev.c
+--- work.orig/kernel/nvidia/nv-chrdev.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia/nv-chrdev.c	2016-11-27 21:54:23.971706350 +0100
+@@ -20,8 +20,6 @@ int nv_register_chrdev(void *param)
+ {
+     nvidia_module_t *module = (nvidia_module_t *)param;
+ 
+-    module->instance = nv_module_instance;
+-
+     return (nvidia_register_module(module));
+ }
+ 
+diff -urp work.orig/kernel/nvidia/nv-instance.c work/kernel/nvidia/nv-instance.c
+--- work.orig/kernel/nvidia/nv-instance.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia/nv-instance.c	2016-11-27 21:54:23.971706350 +0100
+@@ -51,6 +51,7 @@ struct pci_driver nv_pci_driver = {
+ nvidia_module_t nv_fops = {
+     .owner       = THIS_MODULE,
+     .module_name = MODULE_NAME,
++    .instance    = MODULE_INSTANCE_NUMBER,
+     .open        = nvidia_open,
+     .close       = nvidia_close,
+     .ioctl       = nvidia_ioctl,
+diff -urp work.orig/kernel/nvidia/nv-mmap.c work/kernel/nvidia/nv-mmap.c
+--- work.orig/kernel/nvidia/nv-mmap.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia/nv-mmap.c	2016-11-27 21:54:23.971706350 +0100
+@@ -102,12 +102,12 @@ nvidia_vma_release(struct vm_area_struct
+ }
+ 
+ #if defined(NV_VM_OPERATIONS_STRUCT_HAS_ACCESS)
+-static int
++static ssize_t
+ nvidia_vma_access(
+     struct vm_area_struct *vma,
+     unsigned long addr,
+     void *buffer,
+-    int length,
++    size_t length,
+     int write
+ )
+ {
+diff -urp work.orig/kernel/nvidia/nv-modeset-interface.c work/kernel/nvidia/nv-modeset-interface.c
+--- work.orig/kernel/nvidia/nv-modeset-interface.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia/nv-modeset-interface.c	2016-11-27 21:54:23.971706350 +0100
+@@ -100,10 +100,9 @@ static NvU32 nvidia_modeset_enumerate_gp
+     return count;
+ }
+ 
+-NV_STATUS nvidia_get_rm_ops(nvidia_modeset_rm_ops_t *rm_ops)
++NV_STATUS nvidia_get_rm_ops(const nvidia_modeset_rm_ops_t **rm_ops, const char **version_string)
+ {
+-    const nvidia_modeset_rm_ops_t local_rm_ops = {
+-        .version_string = NV_VERSION_STRING,
++    static const nvidia_modeset_rm_ops_t local_rm_ops = {
+         .system_info    = {
+             .allow_write_combining = NV_FALSE,
+         },
+@@ -116,17 +115,26 @@ NV_STATUS nvidia_get_rm_ops(nvidia_modes
+         .set_callbacks  = nvidia_modeset_set_callbacks,
+     };
+ 
+-    if (strcmp(rm_ops->version_string, NV_VERSION_STRING) != 0)
++    static const nvidia_modeset_rm_ops_t local_rm_ops_wc = {
++        .system_info    = {
++            .allow_write_combining = NV_TRUE,
++        },
++        .alloc_stack    = nvidia_modeset_rm_ops_alloc_stack,
++        .free_stack     = nvidia_modeset_rm_ops_free_stack,
++        .enumerate_gpus = nvidia_modeset_enumerate_gpus,
++        .open_gpu       = nvidia_dev_get,
++        .close_gpu      = nvidia_dev_put,
++        .op             = rm_kernel_rmapi_op, /* provided by nv-kernel.o */
++        .set_callbacks  = nvidia_modeset_set_callbacks,
++    };
++
++    if (strcmp(*version_string, NV_VERSION_STRING) != 0)
+     {
+-        rm_ops->version_string = NV_VERSION_STRING;
++        *version_string = NV_VERSION_STRING;
+         return NV_ERR_GENERIC;
+     }
+ 
+-    *rm_ops = local_rm_ops;
+-
+-    if (NV_ALLOW_WRITE_COMBINING(NV_MEMORY_TYPE_FRAMEBUFFER)) {
+-        rm_ops->system_info.allow_write_combining = NV_TRUE;
+-    }
++    *rm_ops = NV_ALLOW_WRITE_COMBINING(NV_MEMORY_TYPE_FRAMEBUFFER) ? &local_rm_ops_wc : &local_rm_ops;
+ 
+     return NV_OK;
+ }
+diff -urp work.orig/kernel/nvidia-drm/nvidia-drm-drv.c work/kernel/nvidia-drm/nvidia-drm-drv.c
+--- work.orig/kernel/nvidia-drm/nvidia-drm-drv.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia-drm/nvidia-drm-drv.c	2016-11-27 21:54:23.971706350 +0100
+@@ -594,7 +594,7 @@ static const struct drm_ioctl_desc nv_dr
+                       DRM_CONTROL_ALLOW|DRM_RENDER_ALLOW|DRM_UNLOCKED),
+ };
+ 
+-static struct drm_driver nv_drm_driver = {
++static drm_driver_no_const nv_drm_driver __read_only = {
+ 
+     .driver_features        = DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER,
+ 
+@@ -654,6 +654,7 @@ static void nvidia_update_drm_driver_fea
+         return;
+     }
+ 
++    pax_open_kernel();
+     nv_drm_driver.driver_features |= DRIVER_MODESET | DRIVER_ATOMIC;
+ 
+     nv_drm_driver.master_set       = nvidia_drm_master_set;
+@@ -664,6 +665,7 @@ static void nvidia_update_drm_driver_fea
+     nv_drm_driver.dumb_destroy     = drm_gem_dumb_destroy;
+ 
+     nv_drm_driver.gem_vm_ops       = &nv_drm_gem_vma_ops;
++    pax_close_kernel();
+ #endif /* NV_DRM_ATOMIC_MODESET_AVAILABLE */
+ }
+ 
+diff -urp work.orig/kernel/nvidia-modeset/nvidia-modeset-linux.c work/kernel/nvidia-modeset/nvidia-modeset-linux.c
+--- work.orig/kernel/nvidia-modeset/nvidia-modeset-linux.c	2016-11-27 21:56:50.395629748 +0100
++++ work/kernel/nvidia-modeset/nvidia-modeset-linux.c	2016-11-27 21:54:23.971706350 +0100
+@@ -335,29 +335,28 @@ static void nvkms_resume(NvU32 gpuId)
+  * Interface with resman.
+  *************************************************************************/
+ 
+-static nvidia_modeset_rm_ops_t __rm_ops = { 0 };
++static const nvidia_modeset_rm_ops_t *__rm_ops;
+ static nvidia_modeset_callbacks_t nvkms_rm_callbacks = {
+-    nvkms_suspend,
+-    nvkms_resume
++    .suspend = nvkms_suspend,
++    .resume = nvkms_resume
+ };
+ 
+ static int nvkms_alloc_rm(void)
+ {
+     NV_STATUS nvstatus;
+     int ret;
++    const char *version_string = NV_VERSION_STRING;
+ 
+-    __rm_ops.version_string = NV_VERSION_STRING;
+-
+-    nvstatus = nvidia_get_rm_ops(&__rm_ops);
++    nvstatus = nvidia_get_rm_ops(&__rm_ops, &version_string);
+ 
+     if (nvstatus != NV_OK) {
+         printk(KERN_ERR NVKMS_LOG_PREFIX "Version mismatch: "
+                "nvidia.ko(%s) nvidia-modeset.ko(%s)\n",
+-               __rm_ops.version_string, NV_VERSION_STRING);
++               version_string, NV_VERSION_STRING);
+         return -EINVAL;
+     }
+ 
+-    ret = __rm_ops.set_callbacks(&nvkms_rm_callbacks);
++    ret = __rm_ops->set_callbacks(&nvkms_rm_callbacks);
+     if (ret < 0) {
+         printk(KERN_ERR NVKMS_LOG_PREFIX "Failed to register callbacks\n");
+         return ret;
+@@ -368,20 +367,20 @@ static int nvkms_alloc_rm(void)
+ 
+ static void nvkms_free_rm(void)
+ {
+-    __rm_ops.set_callbacks(NULL);
++    __rm_ops->set_callbacks(NULL);
+ }
+ 
+ void NVKMS_API_CALL nvkms_call_rm(void *ops)
+ {
+     nvidia_modeset_stack_ptr stack = NULL;
+ 
+-    if (__rm_ops.alloc_stack(&stack) != 0) {
++    if (__rm_ops->alloc_stack(&stack) != 0) {
+         return;
+     }
+ 
+-    __rm_ops.op(stack, ops);
++    __rm_ops->op(stack, ops);
+ 
+-    __rm_ops.free_stack(stack);
++    __rm_ops->free_stack(stack);
+ }
+ 
+ /*************************************************************************
+@@ -705,13 +704,13 @@ NvBool NVKMS_API_CALL nvkms_open_gpu(NvU
+     nvidia_modeset_stack_ptr stack = NULL;
+     NvBool ret;
+ 
+-    if (__rm_ops.alloc_stack(&stack) != 0) {
++    if (__rm_ops->alloc_stack(&stack) != 0) {
+         return NV_FALSE;
+     }
+ 
+-    ret = __rm_ops.open_gpu(gpuId, stack) == 0;
++    ret = __rm_ops->open_gpu(gpuId, stack) == 0;
+ 
+-    __rm_ops.free_stack(stack);
++    __rm_ops->free_stack(stack);
+ 
+     return ret;
+ }
+@@ -720,23 +719,23 @@ void NVKMS_API_CALL nvkms_close_gpu(NvU3
+ {
+     nvidia_modeset_stack_ptr stack = NULL;
+ 
+-    if (__rm_ops.alloc_stack(&stack) != 0) {
++    if (__rm_ops->alloc_stack(&stack) != 0) {
+         return;
+     }
+ 
+-    __rm_ops.close_gpu(gpuId, stack);
++    __rm_ops->close_gpu(gpuId, stack);
+ 
+-    __rm_ops.free_stack(stack);
++    __rm_ops->free_stack(stack);
+ }
+ 
+ NvU32 NVKMS_API_CALL nvkms_enumerate_gpus(nv_gpu_info_t *gpu_info)
+ {
+-    return __rm_ops.enumerate_gpus(gpu_info);
++    return __rm_ops->enumerate_gpus(gpu_info);
+ }
+ 
+ NvBool NVKMS_API_CALL nvkms_allow_write_combining(void)
+ {
+-    return __rm_ops.system_info.allow_write_combining;
++    return __rm_ops->system_info.allow_write_combining;
+ }
+ 
+ /*************************************************************************
+diff -urp work.orig/kernel/nvidia-uvm/uvm8_global.c work/kernel/nvidia-uvm/uvm8_global.c
+--- work.orig/kernel/nvidia-uvm/uvm8_global.c	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm8_global.c	2016-11-27 21:54:23.975709978 +0100
+@@ -35,17 +35,17 @@
+ #include "nv_uvm_interface.h"
+ 
+ uvm_global_t g_uvm_global;
+-static struct UvmOpsUvmEvents g_exported_uvm8_ops;
++static struct UvmOpsUvmEvents g_exported_uvm8_ops = {
++    .startDevice = NULL,
++    .stopDevice  = NULL,
++    .isrTopHalf  = uvm8_isr_top_half,
++};
+ static bool g_ops_registered = false;
+ 
+ static NV_STATUS uvm8_register_callbacks(void)
+ {
+     NV_STATUS status = NV_OK;
+ 
+-    g_exported_uvm8_ops.startDevice = NULL;
+-    g_exported_uvm8_ops.stopDevice  = NULL;
+-    g_exported_uvm8_ops.isrTopHalf  = uvm8_isr_top_half;
+-
+     // Register the UVM callbacks with the main GPU driver:
+     status = uvm_rm_locked_call(nvUvmInterfaceRegisterUvmCallbacks(&g_exported_uvm8_ops));
+     if (status != NV_OK)
+diff -urp work.orig/kernel/nvidia-uvm/uvm8_gpu_semaphore.c work/kernel/nvidia-uvm/uvm8_gpu_semaphore.c
+--- work.orig/kernel/nvidia-uvm/uvm8_gpu_semaphore.c	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm8_gpu_semaphore.c	2016-11-27 21:54:23.975709978 +0100
+@@ -368,7 +368,7 @@ void uvm_gpu_semaphore_set_payload(uvm_g
+     // being optimized out on non-SMP configs (we need them for interacting with
+     // the GPU correctly even on non-SMP).
+     mb();
+-    ACCESS_ONCE(*semaphore->payload) = payload;
++    ACCESS_ONCE_RW(*semaphore->payload) = payload;
+ }
+ 
+ // This function is intended to catch channels which have been left dangling in
+diff -urp work.orig/kernel/nvidia-uvm/uvm8_hal.h work/kernel/nvidia-uvm/uvm8_hal.h
+--- work.orig/kernel/nvidia-uvm/uvm8_hal.h	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm8_hal.h	2016-11-27 21:54:23.975709978 +0100
+@@ -316,7 +316,7 @@ typedef struct
+         // fault_buffer_ops: id is a hardware class
+         uvm_fault_buffer_hal_t fault_buffer_ops;
+     } u;
+-} uvm_hal_class_ops_t;
++} __do_const uvm_hal_class_ops_t;
+ 
+ // When UVM next support is enabled support for future chips in the hal is
+ // enabled by providing additional hal table entries below.
+diff -urp work.orig/kernel/nvidia-uvm/uvm8_mmu.h work/kernel/nvidia-uvm/uvm8_mmu.h
+--- work.orig/kernel/nvidia-uvm/uvm8_mmu.h	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm8_mmu.h	2016-11-27 21:54:23.975709978 +0100
+@@ -24,7 +24,6 @@
+ #ifndef __UVM8_MMU_H__
+ #define __UVM8_MMU_H__
+ 
+-#include "uvm8_forward_decl.h"
+ #include "uvm8_hal_types.h"
+ #include "uvm8_pmm_gpu.h"
+ #include "uvmtypes.h"
+diff -urp work.orig/kernel/nvidia-uvm/uvm_common.c work/kernel/nvidia-uvm/uvm_common.c
+--- work.orig/kernel/nvidia-uvm/uvm_common.c	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm_common.c	2016-11-27 21:54:23.975709978 +0100
+@@ -42,7 +42,6 @@
+ #define UVM_SPIN_LOOP_PRINT_TIMEOUT_SEC     30ULL
+ 
+ static dev_t g_uvmBaseDev;
+-struct UvmOpsUvmEvents g_exportedUvmOps;
+ 
+ static char* uvm_driver_mode = "8";
+ 
+diff -urp work.orig/kernel/nvidia-uvm/uvm_full_fault_buffer.h work/kernel/nvidia-uvm/uvm_full_fault_buffer.h
+--- work.orig/kernel/nvidia-uvm/uvm_full_fault_buffer.h	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm_full_fault_buffer.h	2016-11-27 21:54:23.975709978 +0100
+@@ -31,6 +31,7 @@
+ #define _UVM_FULL_FAULT_BUFFER_H_
+ 
+ #include "uvmtypes.h"
++#include "linux/compiler.h"
+ 
+ #define MAXWELL_FAULT_BUFFER_A (0xb069)
+ #define MEM_RD32(a) (*(const volatile NvU32 *)(a)) 
+@@ -303,7 +304,7 @@ typedef struct
+     NvUvmControlPrefetch_t              controlPrefetch;
+     NvUvmTestFaultBufferOverflow_t      testFaultBufferOverflow;
+     NvUvmClearFaultBufferOverflow_t     clearFaultBufferOverflow;
+-} UvmFaultBufferOps;
++} __no_const UvmFaultBufferOps;
+ 
+ /******************************************************************************
+     uvmfull_fault_buffer_init
+diff -urp work.orig/kernel/nvidia-uvm/uvm_linux.h work/kernel/nvidia-uvm/uvm_linux.h
+--- work.orig/kernel/nvidia-uvm/uvm_linux.h	2016-11-27 21:56:50.399642330 +0100
++++ work/kernel/nvidia-uvm/uvm_linux.h	2016-11-27 21:54:23.975709978 +0100
+@@ -420,7 +420,7 @@ static inline NvU64 NV_GETTIME(void)
+ 
+ // WRITE_ONCE/READ_ONCE have incompatible definitions across versions, which produces warnings.
+ // Therefore, we define our own macros
+-#define UVM_WRITE_ONCE(x, val) (ACCESS_ONCE(x) = (val))
++#define UVM_WRITE_ONCE(x, val) (ACCESS_ONCE_RW(x) = (val))
+ #define UVM_READ_ONCE(x) ACCESS_ONCE(x)
+ 
+ // Added in 3.11
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-375.26.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-375.26.ebuild
index abfa74f4c3ea..fc45d6f0390e 100644
--- a/x11-drivers/nvidia-drivers/nvidia-drivers-375.26.ebuild
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-375.26.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -177,7 +177,7 @@ src_prepare() {
 		ewarn "Using PAX patches is not supported. You will be asked to"
 		ewarn "use a standard kernel should you have issues. Should you"
 		ewarn "need support with these patches, contact the PaX team."
-		eapply "${FILESDIR}"/${PN}-364.12-pax.patch
+		eapply "${FILESDIR}"/${PN}-375.20-pax.patch
 	fi
 
 	# Allow user patches so they can support RC kernels and whatever else