Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Thomas Zimmermann | 593 | 49.13% | 32 | 60.38% |
Dave Airlie | 397 | 32.89% | 4 | 7.55% |
Russell Currey | 77 | 6.38% | 2 | 3.77% |
KuoHsiang Chou | 64 | 5.30% | 5 | 9.43% |
Y.C. Chen | 23 | 1.91% | 2 | 3.77% |
Jammy Huang | 22 | 1.82% | 1 | 1.89% |
Benjamin Herrenschmidt | 22 | 1.82% | 3 | 5.66% |
Sam Ravnborg | 5 | 0.41% | 1 | 1.89% |
Egbert Eich | 2 | 0.17% | 1 | 1.89% |
Daniel Vetter | 1 | 0.08% | 1 | 1.89% |
Gustavo A. R. Silva | 1 | 0.08% | 1 | 1.89% |
Total | 1207 | 53 |
/* * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * */ /* * Authors: Dave Airlie <airlied@redhat.com> */ #include <linux/of.h> #include <linux/pci.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_drv.h> #include <drm/drm_gem.h> #include <drm/drm_managed.h> #include "ast_drv.h" static void ast_detect_widescreen(struct ast_device *ast) { u8 jreg; /* Check if we support wide screen */ switch (AST_GEN(ast)) { case 1: ast->support_wide_screen = false; break; default: jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd0, 0xff); if (!(jreg & 0x80)) ast->support_wide_screen = true; else if (jreg & 0x01) ast->support_wide_screen = true; else { ast->support_wide_screen = false; if (ast->chip == AST1300) ast->support_wide_screen = true; if (ast->chip == AST1400) ast->support_wide_screen = true; if (ast->chip == AST2510) ast->support_wide_screen = true; if (IS_AST_GEN7(ast)) ast->support_wide_screen = true; } break; } } static void ast_detect_tx_chip(struct ast_device *ast, bool need_post) { struct drm_device *dev = &ast->base; u8 jreg; /* Check 3rd Tx option (digital output afaik) */ ast->tx_chip_types |= AST_TX_NONE_BIT; /* * VGACRA3 Enhanced Color Mode Register, check if DVO is already * enabled, in that case, assume we have a SIL164 TMDS transmitter * * Don't make that assumption if we the chip wasn't enabled and * is at power-on reset, otherwise we'll incorrectly "detect" a * SIL164 when there is none. */ if (!need_post) { jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xff); if (jreg & 0x80) ast->tx_chip_types = AST_TX_SIL164_BIT; } if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast) || IS_AST_GEN6(ast)) { /* * On AST GEN4+, look the configuration set by the SoC in * the SOC scratch register #1 bits 11:8 (interestingly marked * as "reserved" in the spec) */ jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1, 0xff); switch (jreg) { case 0x04: ast->tx_chip_types = AST_TX_SIL164_BIT; break; case 0x08: ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL); if (ast->dp501_fw_addr) { /* backup firmware */ if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) { drmm_kfree(dev, ast->dp501_fw_addr); ast->dp501_fw_addr = NULL; } } fallthrough; case 0x0c: ast->tx_chip_types = AST_TX_DP501_BIT; } } else if (IS_AST_GEN7(ast)) { if (ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xD1, TX_TYPE_MASK) == ASTDP_DPMCU_TX) { ast->tx_chip_types = AST_TX_ASTDP_BIT; ast_dp_launch(&ast->base); } } /* Print stuff for diagnostic purposes */ if (ast->tx_chip_types & AST_TX_NONE_BIT) drm_info(dev, "Using analog VGA\n"); if (ast->tx_chip_types & AST_TX_SIL164_BIT) drm_info(dev, "Using Sil164 TMDS transmitter\n"); if (ast->tx_chip_types & AST_TX_DP501_BIT) drm_info(dev, "Using DP501 DisplayPort transmitter\n"); if (ast->tx_chip_types & AST_TX_ASTDP_BIT) drm_info(dev, "Using ASPEED DisplayPort transmitter\n"); } static int ast_get_dram_info(struct drm_device *dev) { struct device_node *np = dev->dev->of_node; struct ast_device *ast = to_ast_device(dev); uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap; uint32_t denum, num, div, ref_pll, dsel; switch (ast->config_mode) { case ast_use_dt: /* * If some properties are missing, use reasonable * defaults for GEN5 */ if (of_property_read_u32(np, "aspeed,mcr-configuration", &mcr_cfg)) mcr_cfg = 0x00000577; if (of_property_read_u32(np, "aspeed,mcr-scu-mpll", &mcr_scu_mpll)) mcr_scu_mpll = 0x000050C0; if (of_property_read_u32(np, "aspeed,mcr-scu-strap", &mcr_scu_strap)) mcr_scu_strap = 0; break; case ast_use_p2a: ast_write32(ast, 0xf004, 0x1e6e0000); ast_write32(ast, 0xf000, 0x1); mcr_cfg = ast_read32(ast, 0x10004); mcr_scu_mpll = ast_read32(ast, 0x10120); mcr_scu_strap = ast_read32(ast, 0x10170); break; case ast_use_defaults: default: ast->dram_bus_width = 16; ast->dram_type = AST_DRAM_1Gx16; if (IS_AST_GEN6(ast)) ast->mclk = 800; else ast->mclk = 396; return 0; } if (mcr_cfg & 0x40) ast->dram_bus_width = 16; else ast->dram_bus_width = 32; if (IS_AST_GEN6(ast)) { switch (mcr_cfg & 0x03) { case 0: ast->dram_type = AST_DRAM_1Gx16; break; default: case 1: ast->dram_type = AST_DRAM_2Gx16; break; case 2: ast->dram_type = AST_DRAM_4Gx16; break; case 3: ast->dram_type = AST_DRAM_8Gx16; break; } } else if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast)) { switch (mcr_cfg & 0x03) { case 0: ast->dram_type = AST_DRAM_512Mx16; break; default: case 1: ast->dram_type = AST_DRAM_1Gx16; break; case 2: ast->dram_type = AST_DRAM_2Gx16; break; case 3: ast->dram_type = AST_DRAM_4Gx16; break; } } else { switch (mcr_cfg & 0x0c) { case 0: case 4: ast->dram_type = AST_DRAM_512Mx16; break; case 8: if (mcr_cfg & 0x40) ast->dram_type = AST_DRAM_1Gx16; else ast->dram_type = AST_DRAM_512Mx32; break; case 0xc: ast->dram_type = AST_DRAM_1Gx32; break; } } if (mcr_scu_strap & 0x2000) ref_pll = 14318; else ref_pll = 12000; denum = mcr_scu_mpll & 0x1f; num = (mcr_scu_mpll & 0x3fe0) >> 5; dsel = (mcr_scu_mpll & 0xc000) >> 14; switch (dsel) { case 3: div = 0x4; break; case 2: case 1: div = 0x2; break; default: div = 0x1; break; } ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000)); return 0; } struct drm_device *ast_device_create(struct pci_dev *pdev, const struct drm_driver *drv, enum ast_chip chip, enum ast_config_mode config_mode, void __iomem *regs, void __iomem *ioregs, bool need_post) { struct drm_device *dev; struct ast_device *ast; int ret; ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_device, base); if (IS_ERR(ast)) return ERR_CAST(ast); dev = &ast->base; ast->chip = chip; ast->config_mode = config_mode; ast->regs = regs; ast->ioregs = ioregs; ast_detect_widescreen(ast); ast_detect_tx_chip(ast, need_post); ret = ast_get_dram_info(dev); if (ret) return ERR_PTR(ret); drm_info(dev, "dram MCLK=%u Mhz type=%d bus_width=%d\n", ast->mclk, ast->dram_type, ast->dram_bus_width); if (need_post) ast_post_gpu(dev); ret = ast_mm_init(ast); if (ret) return ERR_PTR(ret); /* map reserved buffer */ ast->dp501_fw_buf = NULL; if (ast->vram_size < pci_resource_len(pdev, 0)) { ast->dp501_fw_buf = pci_iomap_range(pdev, 0, ast->vram_size, 0); if (!ast->dp501_fw_buf) drm_info(dev, "failed to map reserved buffer!\n"); } ret = ast_mode_config_init(ast); if (ret) return ERR_PTR(ret); return dev; }
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