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path: root/drivers/gpu/drm/ast/ast_main.c
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
-rw-r--r--drivers/gpu/drm/ast/ast_main.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
deleted file mode 100644
index 3eea6a6cdacd..000000000000
--- a/drivers/gpu/drm/ast/ast_main.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * 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"
-
-/* Try to detect WSXGA+ on Gen2+ */
-static bool __ast_2100_detect_wsxga_p(struct ast_device *ast)
-{
- u8 vgacrd0 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd0);
-
- if (!(vgacrd0 & AST_IO_VGACRD0_VRAM_INIT_BY_BMC))
- return true;
- if (vgacrd0 & AST_IO_VGACRD0_IKVM_WIDESCREEN)
- return true;
-
- return false;
-}
-
-/* Try to detect WUXGA on Gen2+ */
-static bool __ast_2100_detect_wuxga(struct ast_device *ast)
-{
- u8 vgacrd1;
-
- if (ast->support_fullhd) {
- vgacrd1 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd1);
- if (!(vgacrd1 & AST_IO_VGACRD1_SUPPORTS_WUXGA))
- return true;
- }
-
- return false;
-}
-
-static void ast_detect_widescreen(struct ast_device *ast)
-{
- ast->support_wsxga_p = false;
- ast->support_fullhd = false;
- ast->support_wuxga = false;
-
- if (AST_GEN(ast) >= 7) {
- ast->support_wsxga_p = true;
- ast->support_fullhd = true;
- if (__ast_2100_detect_wuxga(ast))
- ast->support_wuxga = true;
- } else if (AST_GEN(ast) >= 6) {
- if (__ast_2100_detect_wsxga_p(ast))
- ast->support_wsxga_p = true;
- else if (ast->chip == AST2510)
- ast->support_wsxga_p = true;
- if (ast->support_wsxga_p)
- ast->support_fullhd = true;
- if (__ast_2100_detect_wuxga(ast))
- ast->support_wuxga = true;
- } else if (AST_GEN(ast) >= 5) {
- if (__ast_2100_detect_wsxga_p(ast))
- ast->support_wsxga_p = true;
- else if (ast->chip == AST1400)
- ast->support_wsxga_p = true;
- if (ast->support_wsxga_p)
- ast->support_fullhd = true;
- if (__ast_2100_detect_wuxga(ast))
- ast->support_wuxga = true;
- } else if (AST_GEN(ast) >= 4) {
- if (__ast_2100_detect_wsxga_p(ast))
- ast->support_wsxga_p = true;
- else if (ast->chip == AST1300)
- ast->support_wsxga_p = true;
- if (ast->support_wsxga_p)
- ast->support_fullhd = true;
- if (__ast_2100_detect_wuxga(ast))
- ast->support_wuxga = true;
- } else if (AST_GEN(ast) >= 3) {
- if (__ast_2100_detect_wsxga_p(ast))
- ast->support_wsxga_p = true;
- if (ast->support_wsxga_p) {
- if (ast->chip == AST2200)
- ast->support_fullhd = true;
- }
- if (__ast_2100_detect_wuxga(ast))
- ast->support_wuxga = true;
- } else if (AST_GEN(ast) >= 2) {
- if (__ast_2100_detect_wsxga_p(ast))
- ast->support_wsxga_p = true;
- if (ast->support_wsxga_p) {
- if (ast->chip == AST2100)
- ast->support_fullhd = true;
- }
- if (__ast_2100_detect_wuxga(ast))
- ast->support_wuxga = true;
- }
-}
-
-static void ast_detect_tx_chip(struct ast_device *ast, bool need_post)
-{
- static const char * const info_str[] = {
- "analog VGA",
- "Sil164 TMDS transmitter",
- "DP501 DisplayPort transmitter",
- "ASPEED DisplayPort transmitter",
- };
-
- struct drm_device *dev = &ast->base;
- u8 vgacra3, vgacrd1;
-
- /* Check 3rd Tx option (digital output afaik) */
- ast->tx_chip = AST_TX_NONE;
-
- if (AST_GEN(ast) <= 3) {
- /*
- * 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) {
- vgacra3 = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xff);
- if (vgacra3 & AST_IO_VGACRA3_DVO_ENABLED)
- ast->tx_chip = AST_TX_SIL164;
- }
- } else {
- /*
- * On AST GEN4+, look at the configuration set by the SoC in
- * the SOC scratch register #1 bits 11:8 (interestingly marked
- * as "reserved" in the spec)
- */
- vgacrd1 = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1,
- AST_IO_VGACRD1_TX_TYPE_MASK);
- switch (vgacrd1) {
- /*
- * GEN4 to GEN6
- */
- case AST_IO_VGACRD1_TX_SIL164_VBIOS:
- ast->tx_chip = AST_TX_SIL164;
- break;
- case AST_IO_VGACRD1_TX_DP501_VBIOS:
- ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);
- if (ast->dp501_fw_addr) {
- /* backup firmware */
- if (ast_backup_fw(ast, ast->dp501_fw_addr, 32*1024)) {
- drmm_kfree(dev, ast->dp501_fw_addr);
- ast->dp501_fw_addr = NULL;
- }
- }
- fallthrough;
- case AST_IO_VGACRD1_TX_FW_EMBEDDED_FW:
- ast->tx_chip = AST_TX_DP501;
- break;
- /*
- * GEN7+
- */
- case AST_IO_VGACRD1_TX_ASTDP:
- ast->tx_chip = AST_TX_ASTDP;
- break;
- /*
- * Several of the listed TX chips are not explicitly supported
- * by the ast driver. If these exist in real-world devices, they
- * are most likely reported as VGA or SIL164 outputs. We warn here
- * to get bug reports for these devices. If none come in for some
- * time, we can begin to fail device probing on these values.
- */
- case AST_IO_VGACRD1_TX_ITE66121_VBIOS:
- drm_warn(dev, "ITE IT66121 detected, 0x%x, Gen%lu\n",
- vgacrd1, AST_GEN(ast));
- break;
- case AST_IO_VGACRD1_TX_CH7003_VBIOS:
- drm_warn(dev, "Chrontel CH7003 detected, 0x%x, Gen%lu\n",
- vgacrd1, AST_GEN(ast));
- break;
- case AST_IO_VGACRD1_TX_ANX9807_VBIOS:
- drm_warn(dev, "Analogix ANX9807 detected, 0x%x, Gen%lu\n",
- vgacrd1, AST_GEN(ast));
- break;
- }
- }
-
- drm_info(dev, "Using %s\n", info_str[ast->tx_chip]);
-}
-
-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_tx_chip(ast, need_post);
- switch (ast->tx_chip) {
- case AST_TX_ASTDP:
- ret = ast_post_gpu(ast);
- break;
- default:
- ret = 0;
- if (need_post)
- ret = ast_post_gpu(ast);
- break;
- }
- if (ret)
- return ERR_PTR(ret);
-
- 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");
- }
-
- ast_detect_widescreen(ast);
-
- ret = ast_mode_config_init(ast);
- if (ret)
- return ERR_PTR(ret);
-
- return dev;
-}
generated by cgit (git 2.34.1) at 2025-12-04 22:45:18 +0000