Fabian
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
#!/usr/bin/env python3
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"""Patch 1: gfx_v10_0.c - Disable GFXOFF for Cyan Skillfish (IP 10.1.3)"""
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import sys
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AMDGPU = "/home/fabian/kernel-build/linux-6.19.6/drivers/gpu/drm/amd/amdgpu"
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filepath = f"{AMDGPU}/gfx_v10_0.c"
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with open(filepath, 'r') as f:
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content = f.read()
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if 'BC-250' in content:
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print("Already patched, skipping.")
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sys.exit(0)
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# Find gfx_v10_0_check_gfxoff_flag function
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func_start = content.find('static void gfx_v10_0_check_gfxoff_flag')
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if func_start == -1:
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print("ERROR: gfx_v10_0_check_gfxoff_flag not found")
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sys.exit(1)
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# Find the 'default:' case in the switch inside this function
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# Search within a reasonable range from function start
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func_region_end = func_start + 2000
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default_pos = content.find('\tdefault:', func_start, func_region_end)
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if default_pos == -1:
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# Try with spaces instead of tabs
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default_pos = content.find('default:', func_start, func_region_end)
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if default_pos == -1:
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print("ERROR: default case not found in gfx_v10_0_check_gfxoff_flag")
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print("Region:", content[func_start:func_start+500])
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sys.exit(1)
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# Insert our case BEFORE the default case
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new_case = (
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'\t/* ===== BC-250 v3 PATCH START ===== */\n'
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'\tcase IP_VERSION(10, 1, 3):\n'
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'\t\t/*\n'
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'\t\t * BC-250 / Cyan Skillfish (gfx1013): GFXOFF causes the GPU to\n'
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'\t\t * enter a power-saving state from which it cannot reliably wake.\n'
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'\t\t * Unconditionally disable GFXOFF to prevent GPU hangs.\n'
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'\t\t */\n'
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'\t\tadev->pm.pp_feature &= ~PP_GFXOFF_MASK;\n'
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'\t\tdev_info(adev->dev,\n'
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'\t\t\t "BC-250: GFXOFF disabled to prevent GPU power-state hangs\\n");\n'
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'\t\tbreak;\n'
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'\t/* ===== BC-250 v3 PATCH END ===== */\n'
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)
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content = content[:default_pos] + new_case + content[default_pos:]
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with open(filepath, 'w') as f:
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f.write(content)
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print("Patch 1 applied: gfx_v10_0.c - GFXOFF disable for Cyan Skillfish")
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