[PATCH v2] drm/amdgpu: update documentation for amdgpu_drv.c

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yeah, that's a good idea.

Alex
________________________________
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Qu, Jim <Jim.Qu at amd.com>
Sent: Wednesday, July 4, 2018 1:14 AM
To: Zhang, Jerry; Jiang, Sonny; amd-gfx at lists.freedesktop.org
Subject: ��: [PATCH v2] drm/amdgpu: update documentation for amdgpu_drv.c

I always confuse any bits definiation about some feature mask. such as ip_block_mask, pg_mask, cg_mask, pp_feature_mask. I think other people who is not familiar with amdgpu driver may have the same problem.

So, is it possible to detail every bit mask of features?

Thanks
JimQu

________________________________________
å??件人: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> 代表 Zhang, Jerry (Junwei) <Jerry.Zhang at amd.com>
å??é??æ?¶é?´: 2018å¹´7æ??4æ?¥ 12:57:01
�件人: Jiang, Sonny; amd-gfx at lists.freedesktop.org
主�: Re: [PATCH v2] drm/amdgpu: update documentation for amdgpu_drv.c

On 07/04/2018 04:06 AM, Sonny Jiang wrote:
> Signed-off-by: Sonny Jiang <sonny.jiang at amd.com>
Acked-by: Junwei Zhang <Jerry.Zhang at amd.com>

> ---
>   Documentation/gpu/amdgpu.rst            |   7 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 222 +++++++++++++++++++++++++++++++-
>   2 files changed, 222 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/gpu/amdgpu.rst b/Documentation/gpu/amdgpu.rst
> index 765c2a3..a740e49 100644
> --- a/Documentation/gpu/amdgpu.rst
> +++ b/Documentation/gpu/amdgpu.rst
> @@ -5,6 +5,13 @@
>   The drm/amdgpu driver supports all AMD Radeon GPUs based on the Graphics Core
>   Next (GCN) architecture.
>
> +Module Parameters
> +=================
> +
> +The amdgpu driver supports the following module parameters:
> +
> +.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +
>   Core Driver Infrastructure
>   ==========================
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 963578c..caf81ce 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -1,10 +1,3 @@
> -/**
> - * \file amdgpu_drv.c
> - * AMD Amdgpu driver
> - *
> - * \author Gareth Hughes <gareth at valinux.com>
> - */
> -
>   /*
>    * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
>    * All Rights Reserved.
> @@ -136,102 +129,235 @@ int amdgpu_gpu_recovery = -1; /* auto */
>   int amdgpu_emu_mode = 0;
>   uint amdgpu_smu_memory_pool_size = 0;
>
> +/**
> + * DOC: vramlimit (int)
> + * Restrict the total amount of VRAM in MiB for testing.  The default is 0 (Use full VRAM).
> + */
>   MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
>   module_param_named(vramlimit, amdgpu_vram_limit, int, 0600);
>
> +/**
> + * DOC: vis_vramlimit (int)
> + * Restrict the amount of CPU visible VRAM in MiB for testing.  The default is 0 (Use full CPU visible VRAM).
> + */
>   MODULE_PARM_DESC(vis_vramlimit, "Restrict visible VRAM for testing, in megabytes");
>   module_param_named(vis_vramlimit, amdgpu_vis_vram_limit, int, 0444);
>
> +/**
> + * DOC: gartsize (uint)
> + * Restrict the size of GART in Mib (32, 64, etc.) for testing. The default is -1 (The size depends on asic).
> + */
>   MODULE_PARM_DESC(gartsize, "Size of GART to setup in megabytes (32, 64, etc., -1=auto)");
>   module_param_named(gartsize, amdgpu_gart_size, uint, 0600);
>
> +/**
> + * DOC: gttsize (int)
> + * Restrict the size of GTT domain in MiB for testing. The default is -1 (It's VRAM size if 3GB < VRAM < 3/4 RAM,
> + * otherwise 3/4 RAM size).
> + */
>   MODULE_PARM_DESC(gttsize, "Size of the GTT domain in megabytes (-1 = auto)");
>   module_param_named(gttsize, amdgpu_gtt_size, int, 0600);
>
> +/**
> + * DOC: moverate (int)
> + * Set maximum buffer migration rate in MB/s. The default is -1 (8 MB/s).
> + */
>   MODULE_PARM_DESC(moverate, "Maximum buffer migration rate in MB/s. (32, 64, etc., -1=auto, 0=1=disabled)");
>   module_param_named(moverate, amdgpu_moverate, int, 0600);
>
> +/**
> + * DOC: benchmark (int)
> + * Run benchmarks. The default is 0 (Skip benchmarks).
> + */
>   MODULE_PARM_DESC(benchmark, "Run benchmark");
>   module_param_named(benchmark, amdgpu_benchmarking, int, 0444);
>
> +/**
> + * DOC: test (int)
> + * Test BO GTT->VRAM and VRAM->GTT GPU copies. The default is 0 (Skip test, only set 1 to run test).
> + */
>   MODULE_PARM_DESC(test, "Run tests");
>   module_param_named(test, amdgpu_testing, int, 0444);
>
> +/**
> + * DOC: audio (int)
> + * Set Audio. The default is -1 (Enabled), set 0 to disabled it.
> + */
>   MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
>   module_param_named(audio, amdgpu_audio, int, 0444);
>
> +/**
> + * DOC: disp_priority (int)
> + * Set display Priority (0 = auto, 1 = normal, 2 = high). The default is 0.
> + */
>   MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
>   module_param_named(disp_priority, amdgpu_disp_priority, int, 0444);
>
> +/**
> + * DOC: hw_i2c (int)
> + * To enable hw i2c engine. The default is 0 (Disabled).
> + */
>   MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
>   module_param_named(hw_i2c, amdgpu_hw_i2c, int, 0444);
>
> +/**
> + * DOC: pcie_gen2 (int)
> + * To disable PCIE Gen2 mode (0 = disable, 1 = enable). The default is -1 (auto, enabled).
> + */
>   MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
>   module_param_named(pcie_gen2, amdgpu_pcie_gen2, int, 0444);
>
> +/**
> + * DOC: msi (int)
> + * To disable MSI functionality (1 = enable, 0 = disable). The default is -1 (auto, enabled).
> + */
>   MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(msi, amdgpu_msi, int, 0444);
>
> +/**
> + * DOC: lockup_timeout (int)
> + * Set GPU scheduler timeout value in ms. It must be > 0.  The default is 10000.
> + */
>   MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms > 0 (default 10000)");
>   module_param_named(lockup_timeout, amdgpu_lockup_timeout, int, 0444);
>
> +/**
> + * DOC: dpm (int)
> + * Override for dynamic power management setting (1 = enable, 0 = disable). The default is -1 (auto).
> + */
>   MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(dpm, amdgpu_dpm, int, 0444);
>
> +/**
> + * DOC: fw_load_type (int)
> + * Set different firmware loading type for debugging (0 = direct, 1 = SMU, 2 = PSP). The default is -1 (auto).
> + */
>   MODULE_PARM_DESC(fw_load_type, "firmware loading type (0 = direct, 1 = SMU, 2 = PSP, -1 = auto)");
>   module_param_named(fw_load_type, amdgpu_fw_load_type, int, 0444);
>
> +/**
> + * DOC: aspm (int)
> + * To disable ASPM (1 = enable, 0 = disable). The default is -1 (auto, enabled).
> + */
>   MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(aspm, amdgpu_aspm, int, 0444);
>
> +/**
> + * DOC: runpm (int)
> + * Override for runtime power management control for dGPUs in PX/HG laptops. The amdgpu driver can dynamically power down
> + * the dGPU on PX/HG laptops when it is idle. The default is -1 (auto enable). Setting the value to 0 disables this functionality.
> + */
>   MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)");
>   module_param_named(runpm, amdgpu_runtime_pm, int, 0444);
>
> +/**
> + * DOC: ip_block_mask (uint)
> + * Override what IP blocks are enabled on the GPU.  Each GPU is a collection of IP blocks (gfx, display, video, etc.).
> + * Use this parameter to disable specific blocks. Note that the IP blocks do not have a fixed index (e.g., you might have a device
> + * with multiple instances of an IP block) so the mask is board specific. The default is 0xffffffff (enable all blocks on a device).
> + */
>   MODULE_PARM_DESC(ip_block_mask, "IP Block Mask (all blocks enabled (default))");
>   module_param_named(ip_block_mask, amdgpu_ip_block_mask, uint, 0444);
>
> +/**
> + * DOC: bapm (int)
> + * To disable BAPM (0 = disable). The default -1 (auto, enabled)
> + */
>   MODULE_PARM_DESC(bapm, "BAPM support (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(bapm, amdgpu_bapm, int, 0444);
>
> +/**
> + * DOC: deep_color (int)
> + * Set 1 to enable Deep Color support. The default is 0 (disabled).
> + */
>   MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))");
>   module_param_named(deep_color, amdgpu_deep_color, int, 0444);
>
> +/**
> + * DOC: vm_size (int)
> + * Override the size of the GPU's per client virtual address space in GiB.  The default is -1 (automatic for each asic).
> + */
>   MODULE_PARM_DESC(vm_size, "VM address space size in gigabytes (default 64GB)");
>   module_param_named(vm_size, amdgpu_vm_size, int, 0444);
>
> +/**
> + * DOC: vm_fragment_size (int)
> + * Override VM fragment size in bits (4, 5, etc. 4 = 64K, 9 = 2M). The default is -1 (automatic for each asic).
> + */
>   MODULE_PARM_DESC(vm_fragment_size, "VM fragment size in bits (4, 5, etc. 4 = 64K (default), Max 9 = 2M)");
>   module_param_named(vm_fragment_size, amdgpu_vm_fragment_size, int, 0444);
>
> +/**
> + * DOC: vm_block_size (int)
> + * Override VM page table size in bits (default depending on vm_size and hw setup). The default is -1 (automatic for each asic).
> + */
>   MODULE_PARM_DESC(vm_block_size, "VM page table size in bits (default depending on vm_size)");
>   module_param_named(vm_block_size, amdgpu_vm_block_size, int, 0444);
>
> +/**
> + * DOC: vm_fault_stop (int)
> + * Stop on VM fault for debugging (0 = never, 1 = print first, 2 = always). The default is 0 (No stop).
> + */
>   MODULE_PARM_DESC(vm_fault_stop, "Stop on VM fault (0 = never (default), 1 = print first, 2 = always)");
>   module_param_named(vm_fault_stop, amdgpu_vm_fault_stop, int, 0444);
>
> +/**
> + * DOC: vm_debug (int)
> + * Debug VM handling (0 = disabled, 1 = enabled). The default is 0 (Disabled).
> + */
>   MODULE_PARM_DESC(vm_debug, "Debug VM handling (0 = disabled (default), 1 = enabled)");
>   module_param_named(vm_debug, amdgpu_vm_debug, int, 0644);
>
> +/**
> + * DOC: vm_update_mode (int)
> + * Override VM update mode. VM updated by using CPU (0 = never, 1 = Graphics only, 2 = Compute only, 3 = Both). The default
> + * is -1 (Only in large BAR(LB) systems Compute VM tables will be updated by CPU, otherwise 0, never).
> + */
>   MODULE_PARM_DESC(vm_update_mode, "VM update using CPU (0 = never (default except for large BAR(LB)), 1 = Graphics only, 2 = Compute only (default for LB), 3 = Both");
>   module_param_named(vm_update_mode, amdgpu_vm_update_mode, int, 0444);
>
> +/**
> + * DOC: vram_page_split (int)
> + * Override the number of pages after we split VRAM allocations (default 512, -1 = disable). The default is 512.
> + */
>   MODULE_PARM_DESC(vram_page_split, "Number of pages after we split VRAM allocations (default 512, -1 = disable)");
>   module_param_named(vram_page_split, amdgpu_vram_page_split, int, 0444);
>
> +/**
> + * DOC: exp_hw_support (int)
> + * Enable experimental hw support (1 = enable). The default is 0 (disabled).
> + */
>   MODULE_PARM_DESC(exp_hw_support, "experimental hw support (1 = enable, 0 = disable (default))");
>   module_param_named(exp_hw_support, amdgpu_exp_hw_support, int, 0444);
>
> +/**
> + * DOC: dc (int)
> + * Disable/Enable Display Core driver for debugging (1 = enable, 0 = disable). The default is -1 (automatic for each asic).
> + */
>   MODULE_PARM_DESC(dc, "Display Core driver (1 = enable, 0 = disable, -1 = auto (default))");
>   module_param_named(dc, amdgpu_dc, int, 0444);
>
>   MODULE_PARM_DESC(dc_log, "Display Core Log Level (0 = minimal (default), 1 = chatty");
>   module_param_named(dc_log, amdgpu_dc_log, int, 0444);
>
> +/**
> + * DOC: sched_jobs (int)
> + * Override the max number of jobs supported in the sw queue. The default is 32.
> + */
>   MODULE_PARM_DESC(sched_jobs, "the max number of jobs supported in the sw queue (default 32)");
>   module_param_named(sched_jobs, amdgpu_sched_jobs, int, 0444);
>
> +/**
> + * DOC: sched_hw_submission (int)
> + * Override the max number of HW submissions. The default is 2.
> + */
>   MODULE_PARM_DESC(sched_hw_submission, "the max number of HW submissions (default 2)");
>   module_param_named(sched_hw_submission, amdgpu_sched_hw_submission, int, 0444);
>
> +/**
> + * DOC: ppfeaturemask (uint)
> + * Override what power features are enabled. The default is 0xffff3fff (gfxoff(bit 15), overdriver(bit 14) disabled).
> + */
>   MODULE_PARM_DESC(ppfeaturemask, "all power features enabled (default))");
>   module_param_named(ppfeaturemask, amdgpu_pp_feature_mask, uint, 0444);
>
> @@ -241,58 +367,129 @@ module_param_named(no_evict, amdgpu_no_evict, int, 0444);
>   MODULE_PARM_DESC(direct_gma_size, "Direct GMA size in megabytes (max 96MB)");
>   module_param_named(direct_gma_size, amdgpu_direct_gma_size, int, 0444);
>
> +/**
> + * DOC: pcie_gen_cap (uint)
> + * Override PCIE gen speed capabilities. The default is 0 (automatic for each asic).
> + */
>   MODULE_PARM_DESC(pcie_gen_cap, "PCIE Gen Caps (0: autodetect (default))");
>   module_param_named(pcie_gen_cap, amdgpu_pcie_gen_cap, uint, 0444);
>
> +/**
> + * DOC: pcie_lane_cap (uint)
> + * Override PCIE lanes capabilities. The default is 0 (automatic for each asic).
> + */
>   MODULE_PARM_DESC(pcie_lane_cap, "PCIE Lane Caps (0: autodetect (default))");
>   module_param_named(pcie_lane_cap, amdgpu_pcie_lane_cap, uint, 0444);
>
> +/**
> + * DOC: cg_mask (uint)
> + * Override what Clockgating features are enabled on GPU (0 = disable clock gating). The default is 0xffffffff (all enabled).
> + */
>   MODULE_PARM_DESC(cg_mask, "Clockgating flags mask (0 = disable clock gating)");
>   module_param_named(cg_mask, amdgpu_cg_mask, uint, 0444);
>
> +/**
> + * DOC: pg_mask (uint)
> + * Override what Powergating features are enabled on GPU (0 = disable power gating). The default is 0xffffffff (all enabled).
> + */
>   MODULE_PARM_DESC(pg_mask, "Powergating flags mask (0 = disable power gating)");
>   module_param_named(pg_mask, amdgpu_pg_mask, uint, 0444);
>
> +/**
> + * DOC: sdma_phase_quantum (uint)
> + * Override SDMA context switch phase quantum (x 1K GPU clock cycles, 0 = no change). The default is 32.
> + */
>   MODULE_PARM_DESC(sdma_phase_quantum, "SDMA context switch phase quantum (x 1K GPU clock cycles, 0 = no change (default 32))");
>   module_param_named(sdma_phase_quantum, amdgpu_sdma_phase_quantum, uint, 0444);
>
> +/**
> + * DOC: disable_cu (charp)
> + * Set to disable CUs (It's set like se.sh.cu,...). The default is NULL.
> + */
>   MODULE_PARM_DESC(disable_cu, "Disable CUs (se.sh.cu,...)");
>   module_param_named(disable_cu, amdgpu_disable_cu, charp, 0444);
>
> +/**
> + * DOC: virtual_display (charp)
> + * Set to enable virtual display feature. This feature provides a virtual display hardware on headless boards
> + * or in virtualized environments. It will be set like xxxx:xx:xx.x,x;xxxx:xx:xx.x,x. The default is NULL.
> + */
>   MODULE_PARM_DESC(virtual_display,
>                "Enable virtual display feature (the virtual_display will be set like xxxx:xx:xx.x,x;xxxx:xx:xx.x,x)");
>   module_param_named(virtual_display, amdgpu_virtual_display, charp, 0444);
>
> +/**
> + * DOC: ngg (int)
> + * Set to enable Next Generation Graphics (1 = enable). The default is 0 (disabled).
> + */
>   MODULE_PARM_DESC(ngg, "Next Generation Graphics (1 = enable, 0 = disable(default depending on gfx))");
>   module_param_named(ngg, amdgpu_ngg, int, 0444);
>
> +/**
> + * DOC: prim_buf_per_se (int)
> + * Override the size of Primitive Buffer per Shader Engine in Byte. The default is 0 (depending on gfx).
> + */
>   MODULE_PARM_DESC(prim_buf_per_se, "the size of Primitive Buffer per Shader Engine (default depending on gfx)");
>   module_param_named(prim_buf_per_se, amdgpu_prim_buf_per_se, int, 0444);
>
> +/**
> + * DOC: pos_buf_per_se (int)
> + * Override the size of Position Buffer per Shader Engine in Byte. The default is 0 (depending on gfx).
> + */
>   MODULE_PARM_DESC(pos_buf_per_se, "the size of Position Buffer per Shader Engine (default depending on gfx)");
>   module_param_named(pos_buf_per_se, amdgpu_pos_buf_per_se, int, 0444);
>
> +/**
> + * DOC: cntl_sb_buf_per_se (int)
> + * Override the size of Control Sideband per Shader Engine in Byte. The default is 0 (depending on gfx).
> + */
>   MODULE_PARM_DESC(cntl_sb_buf_per_se, "the size of Control Sideband per Shader Engine (default depending on gfx)");
>   module_param_named(cntl_sb_buf_per_se, amdgpu_cntl_sb_buf_per_se, int, 0444);
>
> +/**
> + * DOC: param_buf_per_se (int)
> + * Override the size of Off-Chip Pramater Cache per Shader Engine in Byte. The default is 0 (depending on gfx).
> + */
>   MODULE_PARM_DESC(param_buf_per_se, "the size of Off-Chip Pramater Cache per Shader Engine (default depending on gfx)");
>   module_param_named(param_buf_per_se, amdgpu_param_buf_per_se, int, 0444);
>
> +/**
> + * DOC: job_hang_limit (int)
> + * Set how much time allow a job hang and not drop it. The default is 0.
> + */
>   MODULE_PARM_DESC(job_hang_limit, "how much time allow a job hang and not drop it (default 0)");
>   module_param_named(job_hang_limit, amdgpu_job_hang_limit, int ,0444);
>
> +/**
> + * DOC: lbpw (int)
> + * Override Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable). The default is -1 (auto, enabled).
> + */
>   MODULE_PARM_DESC(lbpw, "Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(lbpw, amdgpu_lbpw, int, 0444);
>
>   MODULE_PARM_DESC(compute_multipipe, "Force compute queues to be spread across pipes (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(compute_multipipe, amdgpu_compute_multipipe, int, 0444);
>
> +/**
> + * DOC: gpu_recovery (int)
> + * Set to enable GPU recovery mechanism (1 = enable, 0 = disable). The default is -1 (auto, disabled except SRIOV).
> + */
>   MODULE_PARM_DESC(gpu_recovery, "Enable GPU recovery mechanism, (1 = enable, 0 = disable, -1 = auto)");
>   module_param_named(gpu_recovery, amdgpu_gpu_recovery, int, 0444);
>
> +/**
> + * DOC: emu_mode (int)
> + * Set value 1 to enable emulation mode. The default is 0 (disabled).
> + */
>   MODULE_PARM_DESC(emu_mode, "Emulation mode, (1 = enable, 0 = disable)");
>   module_param_named(emu_mode, amdgpu_emu_mode, int, 0444);
>
> +/**
> + * DOC: si_support (int)
> + * Set SI support driver. This parameter works after set config CONFIG_DRM_AMDGPU_SI. For SI asic, when radeon driver is enabled,
> + * set value 0 to use radeon driver, while set value 1 to use amdgpu driver. The default is using radeon driver when it available,
> + * otherwise using amdgpu driver.
> + */
>   #ifdef CONFIG_DRM_AMDGPU_SI
>
>   #if defined(CONFIG_DRM_RADEON) || defined(CONFIG_DRM_RADEON_MODULE)
> @@ -306,6 +503,12 @@ MODULE_PARM_DESC(si_support, "SI support (1 = enabled (default), 0 = disabled)")
>   module_param_named(si_support, amdgpu_si_support, int, 0444);
>   #endif
>
> +/**
> + * DOC: cik_support (int)
> + * Set CIK support driver. This parameter works after set config CONFIG_DRM_AMDGPU_CIK. For CIK asic, when radeon driver is enabled,
> + * set value 0 to use radeon driver, while set value 1 to use amdgpu driver. The default is using radeon driver when it available,
> + * otherwise using amdgpu driver.
> + */
>   #ifdef CONFIG_DRM_AMDGPU_CIK
>
>   #if defined(CONFIG_DRM_RADEON) || defined(CONFIG_DRM_RADEON_MODULE)
> @@ -319,6 +522,11 @@ MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)
>   module_param_named(cik_support, amdgpu_cik_support, int, 0444);
>   #endif
>
> +/**
> + * DOC: smu_memory_pool_size (uint)
> + * It is used to reserve gtt for smu debug usage, setting value 0 to disable it. The actual size is value * 256MiB.
> + * E.g. 0x1 = 256Mbyte, 0x2 = 512Mbyte, 0x4 = 1 Gbyte, 0x8 = 2GByte. The default is 0 (disabled).
> + */
>   MODULE_PARM_DESC(smu_memory_pool_size,
>       "reserve gtt for smu debug usage, 0 = disable,"
>               "0x1 = 256Mbyte, 0x2 = 512Mbyte, 0x4 = 1 Gbyte, 0x8 = 2GByte");
>
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