733289c265
Userspace can query if acceleration is working or not true get info ioctl and could fallback to software if for some reason kernel failed to initialize KMS. This should allow to give a working KMS setup in all case (even with non functionning accel). Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
385 lines
9.6 KiB
C
385 lines
9.6 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Jerome Glisse.
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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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#include <linux/seq_file.h>
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#include "drmP.h"
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#include "radeon_reg.h"
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#include "radeon.h"
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#include "atom.h"
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#include "r420d.h"
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int r420_mc_init(struct radeon_device *rdev)
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{
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int r;
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/* Setup GPU memory space */
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rdev->mc.vram_location = 0xFFFFFFFFUL;
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rdev->mc.gtt_location = 0xFFFFFFFFUL;
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if (rdev->flags & RADEON_IS_AGP) {
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r = radeon_agp_init(rdev);
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if (r) {
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printk(KERN_WARNING "[drm] Disabling AGP\n");
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rdev->flags &= ~RADEON_IS_AGP;
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rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
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} else {
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rdev->mc.gtt_location = rdev->mc.agp_base;
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}
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}
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r = radeon_mc_setup(rdev);
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if (r) {
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return r;
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}
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return 0;
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}
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void r420_pipes_init(struct radeon_device *rdev)
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{
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unsigned tmp;
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unsigned gb_pipe_select;
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unsigned num_pipes;
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/* GA_ENHANCE workaround TCL deadlock issue */
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WREG32(0x4274, (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3));
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/* get max number of pipes */
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gb_pipe_select = RREG32(0x402C);
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num_pipes = ((gb_pipe_select >> 12) & 3) + 1;
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rdev->num_gb_pipes = num_pipes;
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tmp = 0;
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switch (num_pipes) {
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default:
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/* force to 1 pipe */
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num_pipes = 1;
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case 1:
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tmp = (0 << 1);
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break;
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case 2:
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tmp = (3 << 1);
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break;
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case 3:
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tmp = (6 << 1);
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break;
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case 4:
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tmp = (7 << 1);
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break;
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}
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WREG32(0x42C8, (1 << num_pipes) - 1);
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/* Sub pixel 1/12 so we can have 4K rendering according to doc */
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tmp |= (1 << 4) | (1 << 0);
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WREG32(0x4018, tmp);
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if (r100_gui_wait_for_idle(rdev)) {
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printk(KERN_WARNING "Failed to wait GUI idle while "
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"programming pipes. Bad things might happen.\n");
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}
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tmp = RREG32(0x170C);
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WREG32(0x170C, tmp | (1 << 31));
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WREG32(R300_RB2D_DSTCACHE_MODE,
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RREG32(R300_RB2D_DSTCACHE_MODE) |
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R300_DC_AUTOFLUSH_ENABLE |
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R300_DC_DC_DISABLE_IGNORE_PE);
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if (r100_gui_wait_for_idle(rdev)) {
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printk(KERN_WARNING "Failed to wait GUI idle while "
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"programming pipes. Bad things might happen.\n");
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}
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if (rdev->family == CHIP_RV530) {
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tmp = RREG32(RV530_GB_PIPE_SELECT2);
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if ((tmp & 3) == 3)
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rdev->num_z_pipes = 2;
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else
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rdev->num_z_pipes = 1;
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} else
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rdev->num_z_pipes = 1;
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DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n",
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rdev->num_gb_pipes, rdev->num_z_pipes);
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}
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u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg)
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{
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u32 r;
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WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg));
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r = RREG32(R_0001FC_MC_IND_DATA);
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return r;
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}
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void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
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{
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WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) |
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S_0001F8_MC_IND_WR_EN(1));
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WREG32(R_0001FC_MC_IND_DATA, v);
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}
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static void r420_debugfs(struct radeon_device *rdev)
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{
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if (r100_debugfs_rbbm_init(rdev)) {
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DRM_ERROR("Failed to register debugfs file for RBBM !\n");
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}
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if (r420_debugfs_pipes_info_init(rdev)) {
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DRM_ERROR("Failed to register debugfs file for pipes !\n");
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}
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}
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static void r420_clock_resume(struct radeon_device *rdev)
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{
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u32 sclk_cntl;
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sclk_cntl = RREG32_PLL(R_00000D_SCLK_CNTL);
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sclk_cntl |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1);
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if (rdev->family == CHIP_R420)
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sclk_cntl |= S_00000D_FORCE_PX(1) | S_00000D_FORCE_TX(1);
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WREG32_PLL(R_00000D_SCLK_CNTL, sclk_cntl);
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}
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int r420_resume(struct radeon_device *rdev)
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{
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int r;
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/* Make sur GART are not working */
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if (rdev->flags & RADEON_IS_PCIE)
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rv370_pcie_gart_disable(rdev);
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if (rdev->flags & RADEON_IS_PCI)
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r100_pci_gart_disable(rdev);
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/* Resume clock before doing reset */
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r420_clock_resume(rdev);
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/* Reset gpu before posting otherwise ATOM will enter infinite loop */
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if (radeon_gpu_reset(rdev)) {
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dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
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RREG32(R_000E40_RBBM_STATUS),
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RREG32(R_0007C0_CP_STAT));
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}
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/* check if cards are posted or not */
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if (rdev->is_atom_bios) {
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atom_asic_init(rdev->mode_info.atom_context);
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} else {
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radeon_combios_asic_init(rdev->ddev);
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}
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/* Resume clock after posting */
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r420_clock_resume(rdev);
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r300_mc_program(rdev);
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/* Initialize GART (initialize after TTM so we can allocate
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* memory through TTM but finalize after TTM) */
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if (rdev->flags & RADEON_IS_PCIE) {
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r = rv370_pcie_gart_enable(rdev);
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if (r)
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return r;
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}
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if (rdev->flags & RADEON_IS_PCI) {
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r = r100_pci_gart_enable(rdev);
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if (r)
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return r;
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}
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r420_pipes_init(rdev);
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/* Enable IRQ */
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rdev->irq.sw_int = true;
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r100_irq_set(rdev);
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/* 1M ring buffer */
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r = r100_cp_init(rdev, 1024 * 1024);
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if (r) {
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dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
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return r;
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}
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r = r100_wb_init(rdev);
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if (r) {
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dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
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}
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r = r100_ib_init(rdev);
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if (r) {
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dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
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return r;
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}
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return 0;
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}
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int r420_suspend(struct radeon_device *rdev)
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{
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r100_cp_disable(rdev);
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r100_wb_disable(rdev);
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r100_irq_disable(rdev);
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if (rdev->flags & RADEON_IS_PCIE)
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rv370_pcie_gart_disable(rdev);
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if (rdev->flags & RADEON_IS_PCI)
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r100_pci_gart_disable(rdev);
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return 0;
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}
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void r420_fini(struct radeon_device *rdev)
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{
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r100_cp_fini(rdev);
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r100_wb_fini(rdev);
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r100_ib_fini(rdev);
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radeon_gem_fini(rdev);
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if (rdev->flags & RADEON_IS_PCIE)
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rv370_pcie_gart_fini(rdev);
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if (rdev->flags & RADEON_IS_PCI)
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r100_pci_gart_fini(rdev);
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radeon_agp_fini(rdev);
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radeon_irq_kms_fini(rdev);
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radeon_fence_driver_fini(rdev);
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radeon_object_fini(rdev);
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if (rdev->is_atom_bios) {
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radeon_atombios_fini(rdev);
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} else {
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radeon_combios_fini(rdev);
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}
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kfree(rdev->bios);
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rdev->bios = NULL;
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}
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int r420_init(struct radeon_device *rdev)
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{
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int r;
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rdev->new_init_path = true;
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/* Initialize scratch registers */
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radeon_scratch_init(rdev);
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/* Initialize surface registers */
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radeon_surface_init(rdev);
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/* TODO: disable VGA need to use VGA request */
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/* BIOS*/
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if (!radeon_get_bios(rdev)) {
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if (ASIC_IS_AVIVO(rdev))
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return -EINVAL;
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}
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if (rdev->is_atom_bios) {
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r = radeon_atombios_init(rdev);
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if (r) {
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return r;
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}
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} else {
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r = radeon_combios_init(rdev);
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if (r) {
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return r;
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}
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}
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/* Reset gpu before posting otherwise ATOM will enter infinite loop */
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if (radeon_gpu_reset(rdev)) {
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dev_warn(rdev->dev,
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"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
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RREG32(R_000E40_RBBM_STATUS),
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RREG32(R_0007C0_CP_STAT));
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}
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/* check if cards are posted or not */
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if (!radeon_card_posted(rdev) && rdev->bios) {
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DRM_INFO("GPU not posted. posting now...\n");
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if (rdev->is_atom_bios) {
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atom_asic_init(rdev->mode_info.atom_context);
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} else {
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radeon_combios_asic_init(rdev->ddev);
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}
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}
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/* Initialize clocks */
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radeon_get_clock_info(rdev->ddev);
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/* Get vram informations */
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r300_vram_info(rdev);
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/* Initialize memory controller (also test AGP) */
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r = r420_mc_init(rdev);
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if (r) {
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return r;
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}
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r420_debugfs(rdev);
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/* Fence driver */
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r = radeon_fence_driver_init(rdev);
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if (r) {
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return r;
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}
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r = radeon_irq_kms_init(rdev);
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if (r) {
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return r;
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}
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/* Memory manager */
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r = radeon_object_init(rdev);
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if (r) {
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return r;
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}
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if (rdev->flags & RADEON_IS_PCIE) {
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r = rv370_pcie_gart_init(rdev);
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if (r)
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return r;
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}
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if (rdev->flags & RADEON_IS_PCI) {
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r = r100_pci_gart_init(rdev);
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if (r)
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return r;
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}
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r300_set_reg_safe(rdev);
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rdev->accel_working = true;
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r = r420_resume(rdev);
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if (r) {
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/* Somethings want wront with the accel init stop accel */
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dev_err(rdev->dev, "Disabling GPU acceleration\n");
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r420_suspend(rdev);
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r100_cp_fini(rdev);
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r100_wb_fini(rdev);
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r100_ib_fini(rdev);
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if (rdev->flags & RADEON_IS_PCIE)
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rv370_pcie_gart_fini(rdev);
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if (rdev->flags & RADEON_IS_PCI)
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r100_pci_gart_fini(rdev);
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radeon_agp_fini(rdev);
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radeon_irq_kms_fini(rdev);
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rdev->accel_working = false;
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}
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return 0;
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}
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/*
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* Debugfs info
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*/
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#if defined(CONFIG_DEBUG_FS)
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static int r420_debugfs_pipes_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct radeon_device *rdev = dev->dev_private;
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uint32_t tmp;
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tmp = RREG32(R400_GB_PIPE_SELECT);
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seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
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tmp = RREG32(R300_GB_TILE_CONFIG);
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seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
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tmp = RREG32(R300_DST_PIPE_CONFIG);
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seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
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return 0;
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}
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static struct drm_info_list r420_pipes_info_list[] = {
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{"r420_pipes_info", r420_debugfs_pipes_info, 0, NULL},
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};
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#endif
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int r420_debugfs_pipes_info_init(struct radeon_device *rdev)
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{
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#if defined(CONFIG_DEBUG_FS)
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return radeon_debugfs_add_files(rdev, r420_pipes_info_list, 1);
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#else
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return 0;
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#endif
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}
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