ARM Chromebookでqemu-kvmを使用して、Linux上でFreeBSDを仮想化するプロジェクトをほぼ完了しました。
みんな大丈夫です。仮想マシンでのネットワーキングも可能です。最後の作業を完了する必要があります。
Linuxディストリビューションでpanfrostグラフィックドライバを使用できるようにすべてを選択して設定しました：Devuan 5。
ARM Chromebookでpanfrostドライバを1.1から1.2にアップグレードするプロセス全体が何であるかを知りたいです。
私が今やったことは、私が使用しているカーネル（バージョン5.4.257）に対して有効にすることです。
私に尋ねたい場合は、私はより高いカーネルバージョンを使用しないので、答えはバージョン5.7からkvmがarm 32ビットのメインラインカーネルから削除されましたが、カーネルバージョンでは削除されました。 5.4はまだ部分的にサポートされており、それを使用することにしました。したがって、最新のカーネルを使用することはここでは解決策ではありません。
これを有効にするために、カーネル設定ファイルで次のパラメータを有効にしました。
# Graphics support
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_DRM=y
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_DP_AUX_CHARDEV=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
CONFIG_DRM_TTM=y
CONFIG_DRM_VRAM_HELPER=y
CONFIG_DRM_GEM_CMA_HELPER=y
CONFIG_DRM_KMS_CMA_HELPER=y
CONFIG_DRM_GEM_SHMEM_HELPER=y
CONFIG_DRM_SCHED=y
#I2C encoder or helper chips
CONFIG_DRM_I2C_NXP_TDA998X=y
#end of I2C encoder or helper chips
CONFIG_DRM_VGEM=m CONFIG_DRM_EXYNOS=y
#CRTCs
CONFIG_DRM_EXYNOS_FIMD=y
CONFIG_DRM_EXYNOS_MIXER=y
#Encoders and Bridges
CONFIG_DRM_EXYNOS_DPI=y
CONFIG_DRM_EXYNOS_DSI=y
CONFIG_DRM_EXYNOS_DP=y
CONFIG_DRM_EXYNOS_HDMI=y
#Sub-drivers
CONFIG_DRM_CIRRUS_QEMU=m
CONFIG_DRM_RCAR_LVDS=m
CONFIG_DRM_QXL=y
ONFIG_DRM_BOCHS=y
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y
#Display Panels
CONFIG_DRM_PANEL_LVDS=m
CONFIG_DRM_PANEL_SIMPLE=y
#end of Display Panels
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y
#Display Interface Bridges
CONFIG_DRM_NXP_PTN3460=y
CONFIG_DRM_PARADE_PS8622=m
CONFIG_DRM_ANALOGIX_DP=y
#end of Display Interface Bridges
CONFIG_DRM_PL111=m
CONFIG_DRM_PANFROST=y
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
#Frame buffer Devices
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_CFB_REV_PIXELS_IN_BYTE=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#Frame buffer hardware drivers
CONFIG_FB_DA8XX=y
CONFIG_FB_SIMPLE=y
CONFIG_FB_SSD1307=y
#end of Frame buffer Devices
#Backlight & LCD device support
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_PWM=y
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y
いくつかのGPUチューナーのバグにもかかわらず動作しているようです。
# dmesg | grep panfrost
[0.378992] panfrost 11800000.gpu: clock rate = 533000000
[0.379769] panfrost 11800000.gpu: failed to get regulator: -517
[0.380517] panfrost 11800000.gpu: regulator init failed -517
[1.149575] panfrost 11800000.gpu: clock rate = 533000000
[1.150987] panfrost 11800000.gpu: mali-t600 id 0x600 major 0x0 minor 0x0 status 0x1
[1.152132] panfrost 11800000.gpu: features: 00000000,10206000, issues: 00000000,31b4dfff
[1.153271] panfrost 11800000.gpu: Features: L2:0x07110206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xf JS:0x7
[1.154476] panfrost 11800000.gpu: shader_present=0xf l2_present=0x1
[1.158799] [drm] Initialized panfrost 1.1.0 20180908 for 11800000.gpu on minor 0
それでは、問題は何ですか？ドライバは、次のように使用されたカーネルが5.15.120の場合、1.1と1.2に固執します。残念ながらカーネル5.15は利用できませんが、同時にpanfrostドライババージョン1.2が欲しい：P
# dmesg | grep panfrost
[3.352617] panfrost 11800000.gpu: clock rate = 533000000
[3.354011] panfrost 11800000.gpu: mali-t600 id 0x600 major 0x0 minor 0x0 status 0x1
[3.354020] panfrost 11800000.gpu: features: 00000000,10206000, issues: 00000000,31b4dfff
[3.354027] panfrost 11800000.gpu: Features: L2:0x07110206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xf JS:0x7
[3.354035] panfrost 11800000.gpu: shader_present=0xf l2_present=0x1
[3.355009] [drm] Initialized panfrost 1.2.0 20180908 for 11800000.gpu on minor 1
おそらく以下のチュートリアルに基づいてアップグレードすることができます：（または少なくとも希望）
https://gist.github.com/tstellanova/6f7844379e358ee81b89cf6937ea8139
ご覧のとおり、推奨パラメータは次のとおりです。
# meson build/ -Dgallium-drivers=lima,panfrost,kmsro,swrast
-Dplatforms=x11,drm,surfaceless -Dvulkan-drivers= -Ddri-drivers= -Dllvm=false
しかし、次のエラーが発生するため、私のシステムでは機能しません。
meson.build:21:0: ERROR: Options "drm and surfaceless" are not in allowed
choices: "auto, x11, wayland, haiku, android, windows"
"-Dvulkan-drivers=enabled"を有効にすると、次のエラーが発生します。
meson.build:21:0: ERROR: Options "enabled" are not in allowed choices:
"auto, amd, broadcom, freedreno, intel, intel_hasvk, panfrost, swrast, virtio, imagination-experimental, microsoft-experimental, nouveau-experimental"
だから私はそれらを少し修正し、少なくともエラーが発生しない次のパラメータを見つけました。
# apt install libxcb-glx0-dev libx11-xcb-dev libxcb-present-dev libxshmfence-dev libxxf86vm-dev
# git clone https://gitlab.freedesktop.org/mesa/mesa
# cd mesa
meson setup build/ -Dgallium-drivers=lima,panfrost,kmsro,swrast -Dplatforms=x11 -Dvulkan-drivers= -Dllvm=disabled
The Meson build system Version: 1.0.1
Source dir: /Dati/mesa
Build dir: /Dati/mesa/build
Build type: native build
Project name: mesa
Project version: 23.3.0-devel
C compiler for the host machine: cc (gcc 12.2.0 "cc (Debian 12.2.0-14) 12.2.0")
C linker for the host machine: cc ld.bfd 2.40
C++ compiler for the host machine: c++ (gcc 12.2.0 "c++ (Debian 12.2.0-14) 12.2.0")
C++ linker for the host machine: c++ ld.bfd 2.40
Host machine cpu family: arm
Host machine cpu: armv7l
Checking if "-mtls-dialect=gnu2" runs: YES
Dependency vdpau skipped: feature gallium-vdpau disabled
Program glslangValidator found: NO
Dependency libva skipped: feature gallium-va disabled
Program python3 found: YES (/usr/bin/python3)
Fetching value of define "ETIME" : 62
Checking for function "bswap32" : YES
Checking for function "bswap64" : YES
Checking for function "clz" : YES
Checking for function "clzll" : YES
Checking for function "ctz" : YES
Checking for function "expect" : YES
Checking for function "ffs" : YES
Checking for function "ffsll" : YES
Checking for function "popcount" : YES
Checking for function "popcountll" : YES
Checking for function "unreachable" : YES
Checking for function "types_compatible_p" : YES
Compiler for C supports function attribute const: YES
Compiler for C supports function attribute flatten: YES
Compiler for C supports function attribute malloc: YES
Compiler for C supports function attribute pure: YES
Compiler for C supports function attribute unused: YES
Compiler for C supports function attribute warn_unused_result: YES
Compiler for C supports function attribute weak: YES
Compiler for C supports function attribute format: YES
Compiler for C supports function attribute packed: YES
Compiler for C supports function attribute returns_nonnull: YES
Compiler for C supports function attribute alias: YES
Compiler for C supports function attribute noreturn: YES
Compiler for C supports function attribute visibility:hidden: YES
Checking if "__uint128_t" compiles: NO
Checking for function "reallocarray" : YES
Checking for function "fmemopen" : YES
Checking if "gc-sections" : links: YES
Compiler for C supports arguments -Werror=implicit-function-declaration: YES
Compiler for C supports arguments -Werror=missing-prototypes: YES
Compiler for C supports arguments -Werror=return-type: YES
Compiler for C supports arguments -Werror=empty-body: YES
Compiler for C supports arguments -Werror=incompatible-pointer-types: YES
Compiler for C supports arguments -Werror=int-conversion: YES
Compiler for C supports arguments -Wimplicit-fallthrough: YES
Compiler for C supports arguments -Wmisleading-indentation: YES
Compiler for C supports arguments -Wno-missing-field-initializers: YES
Compiler for C supports arguments -Wno-format-truncation: YES
Compiler for C supports arguments -Wno-nonnull-compare: YES
Compiler for C supports arguments -fno-math-errno: YES
Compiler for C supports arguments -fno-trapping-math: YES
Compiler for C supports arguments -Qunused-arguments: NO
Compiler for C supports arguments -fno-common: YES
Compiler for C supports arguments -Wno-microsoft-enum-value: NO
Compiler for C supports arguments -Wno-unused-function: YES
Compiler for C supports arguments -Werror=format: YES
Compiler for C supports arguments -Wformat-security: YES
Compiler for C supports arguments -Werror=thread-safety: NO
Compiler for C supports arguments -ffunction-sections: YES
Compiler for C supports arguments -fdata-sections: YES
Compiler for C++ supports arguments -Werror=return-type: YES
Compiler for C++ supports arguments -Werror=empty-body: YES
Compiler for C++ supports arguments -Wmisleading-indentation: YES
Compiler for C++ supports arguments -Wno-non-virtual-dtor: YES
Compiler for C++ supports arguments -Wno-missing-field-initializers: YES
Compiler for C++ supports arguments -Wno-format-truncation: YES
Compiler for C++ supports arguments -fno-math-errno: YES
Compiler for C++ supports arguments -fno-trapping-math: YES
Compiler for C++ supports arguments -Qunused-arguments: NO
Compiler for C++ supports arguments -flifetime-dse=1: YES
Compiler for C++ supports arguments -Wno-microsoft-enum-value: NO
Compiler for C++ supports arguments -Werror=format: YES
Compiler for C++ supports arguments -Wformat-security: YES
Compiler for C++ supports arguments -ffunction-sections: YES
Compiler for C++ supports arguments -fdata-sections: YES
Compiler for C supports arguments -Wno-override-init: YES
Compiler for C supports arguments -Wno-initializer-overrides: NO
Compiler for C supports arguments -Werror=pointer-arith: YES
Compiler for C supports arguments -Werror=vla: YES
Compiler for C supports arguments -Werror=gnu-empty-initializer: NO
Compiler for C++ supports arguments -Werror=pointer-arith: YES
Compiler for C++ supports arguments -Werror=vla: YES
Compiler for C++ supports arguments -Werror=gnu-empty-initializer: NO
Checking for function "__builtin_ia32_clflushopt" : NO
Checking if "GCC atomic builtins" compiles: YES
Checking if "GCC atomic builtins required -latomic" : links: YES
Checking if "GCC 64bit atomics" with dependency : links: YES
Library ws2_32 found: NO
Header "sys/sysmacros.h" has symbol "major" : YES
Header "sys/sysmacros.h" has symbol "minor" : YES
Header "sys/sysmacros.h" has symbol "makedev" : YES
Header "sys/mkdev.h" has symbol "major" : NO
Check usable header "sched.h" : YES
Checking for function "sched_getaffinity" : YES
Check usable header "xlocale.h" : NO
Check usable header "linux/futex.h" : YES
Check usable header "endian.h" : YES
Check usable header "dlfcn.h" : YES
Check usable header "sys/shm.h" : YES
Check usable header "cet.h" : NO
Check usable header "pthread_np.h" : NO
Check usable header "renderdoc_app.h" : NO
Check usable header "sys/inotify.h" : YES
Checking for function "strtof" : YES
Checking for function "mkostemp" : YES
Checking for function "memfd_create" : YES
Checking for function "random_r" : YES
Checking for function "flock" : YES
Checking for function "strtok_r" : YES
Checking for function "getrandom" : YES
Checking for function "qsort_s" : NO
Checking for function "posix_fallocate" : YES
Checking if "GNU qsort_r" : links: YES
Header "time.h" has symbol "struct timespec" : YES
Checking for function "thrd_create" : YES
Header "errno.h" has symbol "program_invocation_name" : YES
Header "math.h" has symbol "issignaling" : YES
Checking for function "posix_memalign" : YES
Checking whether type "struct dirent" has member "d_type" : YES
Checking if "strtod has locale support" : links: YES
Checking if "Bsymbolic" : links: YES
Checking if "version-script" : links: YES
Checking if "dynamic-list" : links: YES
Compiler for C supports link arguments -Wl,--build-id=sha1: YES
Checking for function "dlopen" : YES
Checking for function "dladdr" with dependency : YES
Checking for function "dl_iterate_phdr" : YES
Checking for function "clock_gettime" : YES
Found pkg-config: /usr/bin/pkg-config (1.8.1)
Run-time dependency zlib found: YES 1.2.13
Run-time dependency libzstd found: YES 1.5.4
Run-time dependency threads found: YES
Checking for function "pthread_setaffinity_np" with dependency threads: YES
Run-time dependency expat found: YES 2.5.0
Library m found: YES
Run-time dependency libdrm found: YES 2.4.114
Run-time dependency libudev found: YES 251
Run-time dependency libelf found: YES 0.188
Run-time dependency valgrind found: NO (tried pkgconfig)
Program bison found: YES (/usr/bin/bison)
Program bison found: YES 3.8.2 (/usr/bin/bison)
Program flex found: YES (/usr/bin/flex)
Run-time dependency libunwind found: YES 1.6.2
Run-time dependency x11 found: YES 1.8.4
Run-time dependency xext found: YES 1.3.4
Run-time dependency xfixes found: YES 6.0.0
Run-time dependency xcb-glx found: YES 1.15
Run-time dependency xcb-shm found: YES 1.15
Run-time dependency xcb found: YES 1.15
Found CMake: /usr/bin/cmake (3.25.1)
Run-time dependency xcb-keysyms found: NO (tried pkgconfig and cmake)
Run-time dependency x11-xcb found: YES 1.8.4
Run-time dependency xcb-dri2 found: YES 1.15
Run-time dependency xcb-dri3 found: YES 1.15
Run-time dependency xcb-present found: YES 1.15
Dependency xcb-shm found: YES 1.15 (cached)
Run-time dependency xcb-sync found: YES 1.15
Run-time dependency xshmfence found: YES 1.3
Run-time dependency glproto found: YES 1.4.17
Run-time dependency dri2proto found: YES 2.8
Run-time dependency xxf86vm found: YES 1.1.4
Run-time dependency xcb-xfixes found: YES 1.15
Run-time dependency xcb-randr found: YES 1.15
Run-time dependency xrandr found: YES 1.5.2
Library sensors found: NO
Program nm found: YES (/usr/bin/nm)
Program symbols-check.py found: YES (/usr/bin/python3 /Dati/mesa/bin/symbols- check.py)
Program install_megadrivers.py found: YES (/usr/bin/python3 /Dati/mesa /bin/install_megadrivers.py)
Program decode.py found: YES (/Dati/mesa/src/compiler/isaspec/decode.py)
Program encode.py found: YES (/Dati/mesa/src/compiler/isaspec/encode.py)
Program ln found: YES (/bin/ln) Checking for function "mincore" : YES
Build targets in project: 214
mesa 23.3.0-devel
Directories
prefix : /usr/local
libdir : lib/arm-linux-gnueabihf
includedir : include
Common C and C++ arguments
c_cpp_args : -mtls-dialect=gnu2
OpenGL
OpenGL : YES
ES1 : YES
ES2 : YES
Shared glapi : YES
GLVND : NO
DRI
Platform : drm
Driver dir : /usr/local/lib/arm-linux-gnueabihf/dri
GLX
Enabled : YES
Provider : dri
EGL Enabled : YES
Drivers : builtin:egl_dri2 builtin:egl_dri3
Platforms : x11 surfaceless drm xcb
GBM
Enabled : YES
Backends path : /usr/local/lib/arm-linux-gnueabihf/gbm
Vulkan Drivers : NO
Video Codecs : NO
APIs : NO
LLVM Enabled : NO
Gallium Enabled : YES
Drivers : lima panfrost kmsro swrast
Platforms : x11 surfaceless drm xcb
Frontends : mesa
Off-screen rendering (OSMesa): NO
HUD lm-sensors : NO
Perfetto Enabled : NO
User defined options
gallium-drivers : lima,panfrost,kmsro,swrast
llvm : disabled
platforms : x11
vulkan-drivers :
Found ninja-1.11.1 at /usr/bin/ninja
しかし、panfrostドライバはまだバージョン1.1で停止しています。
[drm] Initialized panfrost 1.1.0 20180908 for 11800000.gpu on minor 0
Panfrostドライバをカーネル5.4にバックポートしようとしました（カーネル5.15にpanfrostソースコードがあるフォルダを、カーネル5.4にpanfrostソースコードがあるフォルダにコピーして、次のコマンドを実行しました）。
make zImage modules dtbs uImage LOADADDR=0x42004000
残念ながら、C ++コードには修正方法がわからないいくつかのバグがあります。
............
CC [M] drivers/gpu/drm/panfrost/panfrost_drv.o
drivers/gpu/drm/panfrost/panfrost_drv.c: In function ‘panfrost_ioctl_get_param’:
drivers/gpu/drm/panfrost/panfrost_drv.c:35:14: error:
‘DRM_PANFROST_PARAM_AFBC_FEATURES’ undeclared (first use in this function); did y
ou mean ‘DRM_PANFROST_PARAM_MMU_FEATURES’?
35 | case DRM_PANFROST_PARAM_ ## name: \
| ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/panfrost/panfrost_drv.c:66:17: note: in expansion of macro
‘PANFROST_FEATURE’
66 | PANFROST_FEATURE(AFBC_FEATURES, afbc_features);
| ^~~~~~~~~~~~~~~~
drivers/gpu/drm/panfrost/panfrost_drv.c:35:14: note: each undeclared identifier is
reported only once for each function it appears in
35 | case DRM_PANFROST_PARAM_ ## name: \
| ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/panfrost/panfrost_drv.c:66:17: note: in expansion of macro
‘PANFROST_FEATURE’
66 | PANFROST_FEATURE(AFBC_FEATURES, afbc_features);
| ^~~~~~~~~~~~~~~~
drivers/gpu/drm/panfrost/panfrost_drv.c: In function ‘panfrost_ioctl_wait_bo’:
drivers/gpu/drm/panfrost/panfrost_drv.c:319:15: error: implicit declaration of
function ‘dma_resv_wait_timeout’; did you mean ‘dma_resv
_wait_timeout_rcu’? [-Werror=implicit-function-declaration]
319 | ret = dma_resv_wait_timeout(gem_obj->resv, true, true, timeout);
| ^~~~~~~~~~~~~~~~~~~~~
| dma_resv_wait_timeout_rcu
drivers/gpu/drm/panfrost/panfrost_drv.c: In function ‘panfrost_ioctl_madvise’:
drivers/gpu/drm/panfrost/panfrost_drv.c:430:48: error: passing argument 1 of
‘drm_gem_shmem_madvise’ from incompatible pointer type [-Werror=incompatible-
pointer-types]
430 | args->retained = drm_gem_shmem_madvise(&bo->base, args->madv);
| ^~~~~~~~~
| |
| struct drm_gem_shmem_object *
In file included from drivers/gpu/drm/panfrost/panfrost_gem.h:7,
from drivers/gpu/drm/panfrost/panfrost_drv.c:17:
./include/drm/drm_gem_shmem_helper.h:140:50: note: expected ‘struct drm_gem_object
*’ but argument is of type ‘struct drm_gem_shmem_obj
ect *’
140 | int drm_gem_shmem_madvise(struct drm_gem_object *obj, int madv);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~
drivers/gpu/drm/panfrost/panfrost_drv.c: In function ‘panfrost_probe’:
drivers/gpu/drm/panfrost/panfrost_drv.c:566:30: warning: passing argument 1 of
‘drm_dev_alloc’ discards ‘const’ qualifier from pointer
target type [-Wdiscarded-qualifiers]
566 | ddev = drm_dev_alloc(&panfrost_drm_driver, &pdev->dev);
| ^~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/panfrost/panfrost_drv.c:11:
./include/drm/drm_drv.h:791:53: note: expected ‘struct drm_driver *’ but argument is
of type ‘const struct drm_driver *’
791 | struct drm_device *drm_dev_alloc(struct drm_driver *driver,
| ~~~~~~~~~~~~~~~~~~~^~~~~~
cc1: some warnings being treated as errors
make[4]: *** [scripts/Makefile.build:262: drivers/gpu/drm/panfrost/panfrost_drv.o]
Errore 1
make[3]: *** [scripts/Makefile.build:497: drivers/gpu/drm/panfrost] Errore 2
make[2]: *** [scripts/Makefile.build:497: drivers/gpu/drm] Errore 2
make[1]: *** [scripts/Makefile.build:497: drivers/gpu] Errore 2
make: *** [Makefile:1750: drivers] Errore 2
ベストアンサー1
まあ。ここに表示される内容は2つあります。
- 以前のカーネルにコピーする必要がある部分をコピーしました。まだ存在しないシンボルを取得しようとしています。
rivers/gpu/drm/panfrost/panfrost_drv.c: In function ‘panfrost_ioctl_get_param’:
drivers/gpu/drm/panfrost/panfrost_drv.c:35:14: error:
‘DRM_PANFROST_PARAM_AFBC_FEATURES’ undeclared (first use in this function); did y
ou mean ‘DRM_PANFROST_PARAM_MMU_FEATURES’?
35 | case DRM_PANFROST_PARAM_ ## name: \
| ^~~~~~~~~~~~~~~~~~~
- 5.4と5.15で別のAPIを使用しようとしています。
drivers/gpu/drm/panfrost/panfrost_drv.c: In function ‘panfrost_ioctl_madvise’:
drivers/gpu/drm/panfrost/panfrost_drv.c:430:48: error: passing argument 1 of
‘drm_gem_shmem_madvise’ from incompatible pointer type [-Werror=incompatible-
pointer-types]
430 | args->retained = drm_gem_shmem_madvise(&bo->base, args->madv);
| ^~~~~~~~~
| |
| struct drm_gem_shmem_object *
In file included from drivers/gpu/drm/panfrost/panfrost_gem.h:7,
from drivers/gpu/drm/panfrost/panfrost_drv.c:17:
./include/drm/drm_gem_shmem_helper.h:140:50: note: expected ‘struct drm_gem_object
*’ but argument is of type ‘struct drm_gem_shmem_obj
ect *’
どちらも、「このサブフォルダをコピーした」が通常バックポートに移動する方法ではない理由を示す良い例です。必要なものをすべて取得できず、使用中の内部APIが変更されていないという保証はありません。動作しませんが、デバッグするのは難しいです）
あなたがしなければならないことは、最初に必要なpanfrostドライバを最後に追加したgitレコードで変更セットを見つけることです。第二に、現在のカーネルとそのカーネルの間の共通の祖先を見つけて、DRMドライバをチェリー選択することです。関連するすべての変更分岐点からカーネルヘッドまでインフラストラクチャに接続します。
ここで正直な質問は、なぜ古いカーネルを使うのかということです。正直に言うと、5.4を使用することが何であれ、おそらく簡単になります。そして5.15フォワードポーティングは、最新のDRMドライバの1つをバックポートするよりも便利です。
良いニュースはそうではないかもしれないということですそれ怖い。 OFTCの#panfrost IRCチャンネルにアクセスして聞いてください。あなたのはい現在動作しているLTSバージョンなので、すでに誰かが持っている可能性があります。持つほとんどの作業が完了しました。