forked from Minki/linux
698443d9ec
Before we use any of VRAM, we need to disable the VGA rendering engine, this render text mode into a graphical framebuffer for scanout, however it does this on vblank, and can end up overwriting the GART table and r600 shader objects. Signed-off-by: Dave Airlie <airlied@redhat.com>
70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
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* Copyright 2009 Advanced Micro Devices, Inc.
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* Copyright 2009 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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* Jerome Glisse
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*/
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#ifndef AVIVOD_H
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#define AVIVOD_H
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#define D1CRTC_CONTROL 0x6080
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#define CRTC_EN (1 << 0)
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#define D1CRTC_UPDATE_LOCK 0x60E8
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#define D1GRPH_PRIMARY_SURFACE_ADDRESS 0x6110
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#define D1GRPH_SECONDARY_SURFACE_ADDRESS 0x6118
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#define D2CRTC_CONTROL 0x6880
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#define D2CRTC_UPDATE_LOCK 0x68E8
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#define D2GRPH_PRIMARY_SURFACE_ADDRESS 0x6910
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#define D2GRPH_SECONDARY_SURFACE_ADDRESS 0x6918
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#define D1VGA_CONTROL 0x0330
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#define DVGA_CONTROL_MODE_ENABLE (1 << 0)
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#define DVGA_CONTROL_TIMING_SELECT (1 << 8)
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#define DVGA_CONTROL_SYNC_POLARITY_SELECT (1 << 9)
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#define DVGA_CONTROL_OVERSCAN_TIMING_SELECT (1 << 10)
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#define DVGA_CONTROL_OVERSCAN_COLOR_EN (1 << 16)
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#define DVGA_CONTROL_ROTATE (1 << 24)
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#define D2VGA_CONTROL 0x0338
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#define VGA_HDP_CONTROL 0x328
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#define VGA_MEM_PAGE_SELECT_EN (1 << 0)
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#define VGA_MEMORY_DISABLE (1 << 4)
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#define VGA_RBBM_LOCK_DISABLE (1 << 8)
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#define VGA_SOFT_RESET (1 << 16)
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#define VGA_MEMORY_BASE_ADDRESS 0x0310
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#define VGA_RENDER_CONTROL 0x0300
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#define VGA_VSTATUS_CNTL_MASK 0x00030000
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/* AVIVO disable VGA rendering */
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static inline void radeon_avivo_vga_render_disable(struct radeon_device *rdev)
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{
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u32 vga_render;
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vga_render = RREG32(VGA_RENDER_CONTROL);
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vga_render &= ~VGA_VSTATUS_CNTL_MASK;
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WREG32(VGA_RENDER_CONTROL, vga_render);
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}
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#endif
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