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@aritger
aritger committed Sep 20, 2022
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7 changes: 7 additions & 0 deletions CHANGELOG.md
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## Release 515 Entries

### [515.76] 2022-09-20

#### Fixed

- Improved compatibility with new Linux kernel releases
- Fixed possible excessive GPU power draw on an idle X11 or Wayland desktop when driving high resolutions or refresh rates

### [515.65.01] 2022-08-02

#### Fixed
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11 changes: 7 additions & 4 deletions README.md
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# NVIDIA Linux Open GPU Kernel Module Source

This is the source release of the NVIDIA Linux open GPU kernel modules,
version 515.65.01.
version 515.76.


## How to Build
Expand All @@ -17,7 +17,7 @@ as root:

Note that the kernel modules built here must be used with gsp.bin
firmware and user-space NVIDIA GPU driver components from a corresponding
515.65.01 driver release. This can be achieved by installing
515.76 driver release. This can be achieved by installing
the NVIDIA GPU driver from the .run file using the `--no-kernel-modules`
option. E.g.,

Expand Down Expand Up @@ -167,15 +167,15 @@ for the target kernel.
## Compatible GPUs

The open-gpu-kernel-modules can be used on any Turing or later GPU
(see the table below). However, in the 515.65.01 release,
(see the table below). However, in the 515.76 release,
GeForce and Workstation support is still considered alpha-quality.

To enable use of the open kernel modules on GeForce and Workstation GPUs,
set the "NVreg_OpenRmEnableUnsupportedGpus" nvidia.ko kernel module
parameter to 1. For more details, see the NVIDIA GPU driver end user
README here:

https://us.download.nvidia.com/XFree86/Linux-x86_64/515.65.01/README/kernel_open.html
https://us.download.nvidia.com/XFree86/Linux-x86_64/515.76/README/kernel_open.html

In the below table, if three IDs are listed, the first is the PCI Device
ID, the second is the PCI Subsystem Vendor ID, and the third is the PCI
Expand Down Expand Up @@ -643,6 +643,8 @@ Subsystem Device ID.
| NVIDIA A100-PG509-200 | 20B0 10DE 1450 |
| NVIDIA A100-SXM4-80GB | 20B2 10DE 1463 |
| NVIDIA A100-SXM4-80GB | 20B2 10DE 147F |
| NVIDIA A100-SXM4-80GB | 20B2 10DE 1622 |
| NVIDIA A100-SXM4-80GB | 20B2 10DE 1623 |
| NVIDIA PG506-242 | 20B3 10DE 14A7 |
| NVIDIA PG506-243 | 20B3 10DE 14A8 |
| NVIDIA A100 80GB PCIe | 20B5 10DE 1533 |
Expand Down Expand Up @@ -743,6 +745,7 @@ Subsystem Device ID.
| NVIDIA GeForce RTX 3050 | 2507 |
| NVIDIA GeForce RTX 3050 OEM | 2508 |
| NVIDIA GeForce RTX 3060 Laptop GPU | 2520 |
| NVIDIA GeForce RTX 3060 Laptop GPU | 2521 |
| NVIDIA GeForce RTX 3050 Ti Laptop GPU | 2523 |
| NVIDIA RTX A2000 | 2531 1028 151D |
| NVIDIA RTX A2000 | 2531 103C 151D |
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107 changes: 103 additions & 4 deletions kernel-open/Kbuild
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Expand Up @@ -72,7 +72,7 @@ EXTRA_CFLAGS += -I$(src)/common/inc
EXTRA_CFLAGS += -I$(src)
EXTRA_CFLAGS += -Wall -MD $(DEFINES) $(INCLUDES) -Wno-cast-qual -Wno-error -Wno-format-extra-args
EXTRA_CFLAGS += -D__KERNEL__ -DMODULE -DNVRM
EXTRA_CFLAGS += -DNV_VERSION_STRING=\"515.65.01\"
EXTRA_CFLAGS += -DNV_VERSION_STRING=\"515.76\"

EXTRA_CFLAGS += -Wno-unused-function

Expand Down Expand Up @@ -203,9 +203,108 @@ $(obj)/conftest/patches.h: $(NV_CONFTEST_SCRIPT)
@mkdir -p $(obj)/conftest
@$(NV_CONFTEST_CMD) patch_check > $@

$(obj)/conftest/headers.h: $(NV_CONFTEST_SCRIPT)
@mkdir -p $(obj)/conftest
@$(NV_CONFTEST_CMD) test_kernel_headers '$(NV_CONFTEST_CFLAGS)' > $@

# Each of these headers is checked for presence with a test #include; a
# corresponding #define will be generated in conftest/headers.h.
NV_HEADER_PRESENCE_TESTS = \
asm/system.h \
drm/drmP.h \
drm/drm_auth.h \
drm/drm_gem.h \
drm/drm_crtc.h \
drm/drm_atomic.h \
drm/drm_atomic_helper.h \
drm/drm_encoder.h \
drm/drm_atomic_uapi.h \
drm/drm_drv.h \
drm/drm_framebuffer.h \
drm/drm_connector.h \
drm/drm_probe_helper.h \
drm/drm_blend.h \
drm/drm_fourcc.h \
drm/drm_prime.h \
drm/drm_plane.h \
drm/drm_vblank.h \
drm/drm_file.h \
drm/drm_ioctl.h \
drm/drm_device.h \
drm/drm_mode_config.h \
dt-bindings/interconnect/tegra_icc_id.h \
generated/autoconf.h \
generated/compile.h \
generated/utsrelease.h \
linux/efi.h \
linux/kconfig.h \
linux/platform/tegra/mc_utils.h \
linux/semaphore.h \
linux/printk.h \
linux/ratelimit.h \
linux/prio_tree.h \
linux/log2.h \
linux/of.h \
linux/bug.h \
linux/sched/signal.h \
linux/sched/task.h \
linux/sched/task_stack.h \
xen/ioemu.h \
linux/fence.h \
linux/dma-resv.h \
soc/tegra/chip-id.h \
soc/tegra/fuse.h \
soc/tegra/tegra_bpmp.h \
video/nv_internal.h \
linux/platform/tegra/dce/dce-client-ipc.h \
linux/nvhost.h \
linux/nvhost_t194.h \
asm/book3s/64/hash-64k.h \
asm/set_memory.h \
asm/prom.h \
asm/powernv.h \
linux/atomic.h \
asm/barrier.h \
asm/opal-api.h \
sound/hdaudio.h \
asm/pgtable_types.h \
linux/stringhash.h \
linux/dma-map-ops.h \
rdma/peer_mem.h \
sound/hda_codec.h \
linux/dma-buf.h \
linux/time.h \
linux/platform_device.h \
linux/mutex.h \
linux/reset.h \
linux/of_platform.h \
linux/of_device.h \
linux/of_gpio.h \
linux/gpio.h \
linux/gpio/consumer.h \
linux/interconnect.h \
linux/pm_runtime.h \
linux/clk.h \
linux/clk-provider.h \
linux/ioasid.h \
linux/stdarg.h \
linux/iosys-map.h \
asm/coco.h

# Filename to store the define for the header in $(1); this is only consumed by
# the rule below that concatenates all of these together.
NV_HEADER_PRESENCE_PART = $(addprefix $(obj)/conftest/header_presence/,$(addsuffix .part,$(1)))

# Define a rule to check the header $(1).
define NV_HEADER_PRESENCE_CHECK
$$(call NV_HEADER_PRESENCE_PART,$(1)): $$(NV_CONFTEST_SCRIPT) $(obj)/conftest/uts_release
@mkdir -p $$(dir $$@)
@$$(NV_CONFTEST_CMD) test_kernel_header '$$(NV_CONFTEST_CFLAGS)' '$(1)' > $$@
endef

# Evaluate the rule above for each header in the list.
$(foreach header,$(NV_HEADER_PRESENCE_TESTS),$(eval $(call NV_HEADER_PRESENCE_CHECK,$(header))))

# Concatenate all of the parts into headers.h.
$(obj)/conftest/headers.h: $(call NV_HEADER_PRESENCE_PART,$(NV_HEADER_PRESENCE_TESTS))
@cat $^ > $@

clean-dirs := $(obj)/conftest

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1 change: 1 addition & 0 deletions kernel-open/common/inc/nv-linux.h
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Expand Up @@ -227,6 +227,7 @@ static inline uid_t __kuid_val(uid_t uid)
#endif

#include <linux/fb.h> /* fb_info struct */
#include <linux/screen_info.h> /* screen_info */

#if !defined(CONFIG_PCI)
#warning "Attempting to build driver for a platform with no PCI support!"
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5 changes: 0 additions & 5 deletions kernel-open/common/inc/nv-pgprot.h
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Expand Up @@ -78,13 +78,8 @@ static inline pgprot_t pgprot_modify_writecombine(pgprot_t old_prot)

#define NV_PGPROT_UNCACHED_DEVICE(old_prot) pgprot_noncached(old_prot)
#if defined(NVCPU_AARCH64)
#if defined(NV_MT_DEVICE_GRE_PRESENT)
#define NV_PROT_WRITE_COMBINED_DEVICE (PROT_DEFAULT | PTE_PXN | PTE_UXN | \
PTE_ATTRINDX(MT_DEVICE_GRE))
#else
#define NV_PROT_WRITE_COMBINED_DEVICE (PROT_DEFAULT | PTE_PXN | PTE_UXN | \
PTE_ATTRINDX(MT_DEVICE_nGnRE))
#endif
#define NV_PGPROT_WRITE_COMBINED_DEVICE(old_prot) \
__pgprot_modify(old_prot, PTE_ATTRINDX_MASK, NV_PROT_WRITE_COMBINED_DEVICE)
#define NV_PGPROT_WRITE_COMBINED(old_prot) NV_PGPROT_UNCACHED(old_prot)
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60 changes: 39 additions & 21 deletions kernel-open/common/inc/nv.h
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Expand Up @@ -624,27 +624,45 @@ typedef enum
#define NV_GET_NV_STATE(pGpu) \
(nv_state_t *)((pGpu) ? (pGpu)->pOsGpuInfo : NULL)

#define IS_REG_OFFSET(nv, offset, length) \
(((offset) >= (nv)->regs->cpu_address) && \
(((offset) + ((length)-1)) <= \
(nv)->regs->cpu_address + ((nv)->regs->size-1)))

#define IS_FB_OFFSET(nv, offset, length) \
(((nv)->fb) && ((offset) >= (nv)->fb->cpu_address) && \
(((offset) + ((length)-1)) <= (nv)->fb->cpu_address + ((nv)->fb->size-1)))

#define IS_UD_OFFSET(nv, offset, length) \
(((nv)->ud.cpu_address != 0) && ((nv)->ud.size != 0) && \
((offset) >= (nv)->ud.cpu_address) && \
(((offset) + ((length)-1)) <= (nv)->ud.cpu_address + ((nv)->ud.size-1)))

#define IS_IMEM_OFFSET(nv, offset, length) \
(((nv)->bars[NV_GPU_BAR_INDEX_IMEM].cpu_address != 0) && \
((nv)->bars[NV_GPU_BAR_INDEX_IMEM].size != 0) && \
((offset) >= (nv)->bars[NV_GPU_BAR_INDEX_IMEM].cpu_address) && \
(((offset) + ((length) - 1)) <= \
(nv)->bars[NV_GPU_BAR_INDEX_IMEM].cpu_address + \
((nv)->bars[NV_GPU_BAR_INDEX_IMEM].size - 1)))
static inline NvBool IS_REG_OFFSET(nv_state_t *nv, NvU64 offset, NvU64 length)
{
return ((offset >= nv->regs->cpu_address) &&



((offset + (length - 1)) <= (nv->regs->cpu_address + (nv->regs->size - 1))));
}

static inline NvBool IS_FB_OFFSET(nv_state_t *nv, NvU64 offset, NvU64 length)
{
return ((nv->fb) && (offset >= nv->fb->cpu_address) &&



((offset + (length - 1)) <= (nv->fb->cpu_address + (nv->fb->size - 1))));
}

static inline NvBool IS_UD_OFFSET(nv_state_t *nv, NvU64 offset, NvU64 length)
{
return ((nv->ud.cpu_address != 0) && (nv->ud.size != 0) &&
(offset >= nv->ud.cpu_address) &&



((offset + (length - 1)) <= (nv->ud.cpu_address + (nv->ud.size - 1))));
}

static inline NvBool IS_IMEM_OFFSET(nv_state_t *nv, NvU64 offset, NvU64 length)
{
return ((nv->bars[NV_GPU_BAR_INDEX_IMEM].cpu_address != 0) &&
(nv->bars[NV_GPU_BAR_INDEX_IMEM].size != 0) &&
(offset >= nv->bars[NV_GPU_BAR_INDEX_IMEM].cpu_address) &&



((offset + (length - 1)) <= (nv->bars[NV_GPU_BAR_INDEX_IMEM].cpu_address +
(nv->bars[NV_GPU_BAR_INDEX_IMEM].size - 1))));
}

#define NV_RM_MAX_MSIX_LINES 8

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