summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/ast/ast_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
-rw-r--r--drivers/gpu/drm/ast/ast_main.c519
1 files changed, 0 insertions, 519 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
deleted file mode 100644
index f60fd7bd1183..000000000000
--- a/drivers/gpu/drm/ast/ast_main.c
+++ /dev/null
@@ -1,519 +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 <drm/drmP.h>
-#include "ast_drv.h"
-
-
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_crtc_helper.h>
-
-#include "ast_dram_tables.h"
-
-void ast_set_index_reg_mask(struct ast_private *ast,
- uint32_t base, uint8_t index,
- uint8_t mask, uint8_t val)
-{
- u8 tmp;
- ast_io_write8(ast, base, index);
- tmp = (ast_io_read8(ast, base + 1) & mask) | val;
- ast_set_index_reg(ast, base, index, tmp);
-}
-
-uint8_t ast_get_index_reg(struct ast_private *ast,
- uint32_t base, uint8_t index)
-{
- uint8_t ret;
- ast_io_write8(ast, base, index);
- ret = ast_io_read8(ast, base + 1);
- return ret;
-}
-
-uint8_t ast_get_index_reg_mask(struct ast_private *ast,
- uint32_t base, uint8_t index, uint8_t mask)
-{
- uint8_t ret;
- ast_io_write8(ast, base, index);
- ret = ast_io_read8(ast, base + 1) & mask;
- return ret;
-}
-
-
-static int ast_detect_chip(struct drm_device *dev)
-{
- struct ast_private *ast = dev->dev_private;
-
- if (dev->pdev->device == PCI_CHIP_AST1180) {
- ast->chip = AST1100;
- DRM_INFO("AST 1180 detected\n");
- } else {
- if (dev->pdev->revision >= 0x20) {
- ast->chip = AST2300;
- DRM_INFO("AST 2300 detected\n");
- } else if (dev->pdev->revision >= 0x10) {
- uint32_t data;
- ast_write32(ast, 0xf004, 0x1e6e0000);
- ast_write32(ast, 0xf000, 0x1);
-
- data = ast_read32(ast, 0x1207c);
- switch (data & 0x0300) {
- case 0x0200:
- ast->chip = AST1100;
- DRM_INFO("AST 1100 detected\n");
- break;
- case 0x0100:
- ast->chip = AST2200;
- DRM_INFO("AST 2200 detected\n");
- break;
- case 0x0000:
- ast->chip = AST2150;
- DRM_INFO("AST 2150 detected\n");
- break;
- default:
- ast->chip = AST2100;
- DRM_INFO("AST 2100 detected\n");
- break;
- }
- ast->vga2_clone = false;
- } else {
- ast->chip = 2000;
- DRM_INFO("AST 2000 detected\n");
- }
- }
- return 0;
-}
-
-static int ast_get_dram_info(struct drm_device *dev)
-{
- struct ast_private *ast = dev->dev_private;
- uint32_t data, data2;
- uint32_t denum, num, div, ref_pll;
-
- ast_write32(ast, 0xf004, 0x1e6e0000);
- ast_write32(ast, 0xf000, 0x1);
-
-
- ast_write32(ast, 0x10000, 0xfc600309);
-
- do {
- ;
- } while (ast_read32(ast, 0x10000) != 0x01);
- data = ast_read32(ast, 0x10004);
-
- if (data & 0x400)
- ast->dram_bus_width = 16;
- else
- ast->dram_bus_width = 32;
-
- if (ast->chip == AST2300) {
- switch (data & 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 (data & 0x0c) {
- case 0:
- case 4:
- ast->dram_type = AST_DRAM_512Mx16;
- break;
- case 8:
- if (data & 0x40)
- ast->dram_type = AST_DRAM_1Gx16;
- else
- ast->dram_type = AST_DRAM_512Mx32;
- break;
- case 0xc:
- ast->dram_type = AST_DRAM_1Gx32;
- break;
- }
- }
-
- data = ast_read32(ast, 0x10120);
- data2 = ast_read32(ast, 0x10170);
- if (data2 & 0x2000)
- ref_pll = 14318;
- else
- ref_pll = 12000;
-
- denum = data & 0x1f;
- num = (data & 0x3fe0) >> 5;
- data = (data & 0xc000) >> 14;
- switch (data) {
- 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;
-}
-
-uint32_t ast_get_max_dclk(struct drm_device *dev, int bpp)
-{
- struct ast_private *ast = dev->dev_private;
- uint32_t dclk, jreg;
- uint32_t dram_bus_width, mclk, dram_bandwidth, actual_dram_bandwidth, dram_efficency = 500;
-
- dram_bus_width = ast->dram_bus_width;
- mclk = ast->mclk;
-
- if (ast->chip == AST2100 ||
- ast->chip == AST1100 ||
- ast->chip == AST2200 ||
- ast->chip == AST2150 ||
- ast->dram_bus_width == 16)
- dram_efficency = 600;
- else if (ast->chip == AST2300)
- dram_efficency = 400;
-
- dram_bandwidth = mclk * dram_bus_width * 2 / 8;
- actual_dram_bandwidth = dram_bandwidth * dram_efficency / 1000;
-
- if (ast->chip == AST1180)
- dclk = actual_dram_bandwidth / ((bpp + 1) / 8);
- else {
- jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
- if ((jreg & 0x08) && (ast->chip == AST2000))
- dclk = actual_dram_bandwidth / ((bpp + 1 + 16) / 8);
- else if ((jreg & 0x08) && (bpp == 8))
- dclk = actual_dram_bandwidth / ((bpp + 1 + 24) / 8);
- else
- dclk = actual_dram_bandwidth / ((bpp + 1) / 8);
- }
-
- if (ast->chip == AST2100 ||
- ast->chip == AST2200 ||
- ast->chip == AST2300 ||
- ast->chip == AST1180) {
- if (dclk > 200)
- dclk = 200;
- } else {
- if (dclk > 165)
- dclk = 165;
- }
-
- return dclk;
-}
-
-static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
-{
- struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
- if (ast_fb->obj)
- drm_gem_object_unreference_unlocked(ast_fb->obj);
-
- drm_framebuffer_cleanup(fb);
- kfree(fb);
-}
-
-static const struct drm_framebuffer_funcs ast_fb_funcs = {
- .destroy = ast_user_framebuffer_destroy,
-};
-
-
-int ast_framebuffer_init(struct drm_device *dev,
- struct ast_framebuffer *ast_fb,
- struct drm_mode_fb_cmd2 *mode_cmd,
- struct drm_gem_object *obj)
-{
- int ret;
-
- drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
- ast_fb->obj = obj;
- ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
- if (ret) {
- DRM_ERROR("framebuffer init failed %d\n", ret);
- return ret;
- }
- return 0;
-}
-
-static struct drm_framebuffer *
-ast_user_framebuffer_create(struct drm_device *dev,
- struct drm_file *filp,
- struct drm_mode_fb_cmd2 *mode_cmd)
-{
- struct drm_gem_object *obj;
- struct ast_framebuffer *ast_fb;
- int ret;
-
- obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
- if (obj == NULL)
- return ERR_PTR(-ENOENT);
-
- ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
- if (!ast_fb) {
- drm_gem_object_unreference_unlocked(obj);
- return ERR_PTR(-ENOMEM);
- }
-
- ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
- if (ret) {
- drm_gem_object_unreference_unlocked(obj);
- kfree(ast_fb);
- return ERR_PTR(ret);
- }
- return &ast_fb->base;
-}
-
-static const struct drm_mode_config_funcs ast_mode_funcs = {
- .fb_create = ast_user_framebuffer_create,
-};
-
-static u32 ast_get_vram_info(struct drm_device *dev)
-{
- struct ast_private *ast = dev->dev_private;
- u8 jreg;
-
- ast_open_key(ast);
-
- jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
- switch (jreg & 3) {
- case 0: return AST_VIDMEM_SIZE_8M;
- case 1: return AST_VIDMEM_SIZE_16M;
- case 2: return AST_VIDMEM_SIZE_32M;
- case 3: return AST_VIDMEM_SIZE_64M;
- }
- return AST_VIDMEM_DEFAULT_SIZE;
-}
-
-int ast_driver_load(struct drm_device *dev, unsigned long flags)
-{
- struct ast_private *ast;
- int ret = 0;
-
- ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
- if (!ast)
- return -ENOMEM;
-
- dev->dev_private = ast;
- ast->dev = dev;
-
- ast->regs = pci_iomap(dev->pdev, 1, 0);
- if (!ast->regs) {
- ret = -EIO;
- goto out_free;
- }
- ast->ioregs = pci_iomap(dev->pdev, 2, 0);
- if (!ast->ioregs) {
- ret = -EIO;
- goto out_free;
- }
-
- ast_detect_chip(dev);
-
- if (ast->chip != AST1180) {
- ast_get_dram_info(dev);
- ast->vram_size = ast_get_vram_info(dev);
- DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
- }
-
- ret = ast_mm_init(ast);
- if (ret)
- goto out_free;
-
- drm_mode_config_init(dev);
-
- dev->mode_config.funcs = (void *)&ast_mode_funcs;
- dev->mode_config.min_width = 0;
- dev->mode_config.min_height = 0;
- dev->mode_config.preferred_depth = 24;
- dev->mode_config.prefer_shadow = 1;
-
- if (ast->chip == AST2100 ||
- ast->chip == AST2200 ||
- ast->chip == AST2300 ||
- ast->chip == AST1180) {
- dev->mode_config.max_width = 1920;
- dev->mode_config.max_height = 2048;
- } else {
- dev->mode_config.max_width = 1600;
- dev->mode_config.max_height = 1200;
- }
-
- ret = ast_mode_init(dev);
- if (ret)
- goto out_free;
-
- ret = ast_fbdev_init(dev);
- if (ret)
- goto out_free;
-
- return 0;
-out_free:
- kfree(ast);
- dev->dev_private = NULL;
- return ret;
-}
-
-int ast_driver_unload(struct drm_device *dev)
-{
- struct ast_private *ast = dev->dev_private;
-
- ast_mode_fini(dev);
- ast_fbdev_fini(dev);
- drm_mode_config_cleanup(dev);
-
- ast_mm_fini(ast);
- pci_iounmap(dev->pdev, ast->ioregs);
- pci_iounmap(dev->pdev, ast->regs);
- kfree(ast);
- return 0;
-}
-
-int ast_gem_create(struct drm_device *dev,
- u32 size, bool iskernel,
- struct drm_gem_object **obj)
-{
- struct ast_bo *astbo;
- int ret;
-
- *obj = NULL;
-
- size = roundup(size, PAGE_SIZE);
- if (size == 0)
- return -EINVAL;
-
- ret = ast_bo_create(dev, size, 0, 0, &astbo);
- if (ret) {
- if (ret != -ERESTARTSYS)
- DRM_ERROR("failed to allocate GEM object\n");
- return ret;
- }
- *obj = &astbo->gem;
- return 0;
-}
-
-int ast_dumb_create(struct drm_file *file,
- struct drm_device *dev,
- struct drm_mode_create_dumb *args)
-{
- int ret;
- struct drm_gem_object *gobj;
- u32 handle;
-
- args->pitch = args->width * ((args->bpp + 7) / 8);
- args->size = args->pitch * args->height;
-
- ret = ast_gem_create(dev, args->size, false,
- &gobj);
- if (ret)
- return ret;
-
- ret = drm_gem_handle_create(file, gobj, &handle);
- drm_gem_object_unreference_unlocked(gobj);
- if (ret)
- return ret;
-
- args->handle = handle;
- return 0;
-}
-
-int ast_dumb_destroy(struct drm_file *file,
- struct drm_device *dev,
- uint32_t handle)
-{
- return drm_gem_handle_delete(file, handle);
-}
-
-int ast_gem_init_object(struct drm_gem_object *obj)
-{
- BUG();
- return 0;
-}
-
-void ast_bo_unref(struct ast_bo **bo)
-{
- struct ttm_buffer_object *tbo;
-
- if ((*bo) == NULL)
- return;
-
- tbo = &((*bo)->bo);
- ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
-
-}
-void ast_gem_free_object(struct drm_gem_object *obj)
-{
- struct ast_bo *ast_bo = gem_to_ast_bo(obj);
-
- if (!ast_bo)
- return;
- ast_bo_unref(&ast_bo);
-}
-
-
-static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
-{
- return bo->bo.addr_space_offset;
-}
-int
-ast_dumb_mmap_offset(struct drm_file *file,
- struct drm_device *dev,
- uint32_t handle,
- uint64_t *offset)
-{
- struct drm_gem_object *obj;
- int ret;
- struct ast_bo *bo;
-
- mutex_lock(&dev->struct_mutex);
- obj = drm_gem_object_lookup(dev, file, handle);
- if (obj == NULL) {
- ret = -ENOENT;
- goto out_unlock;
- }
-
- bo = gem_to_ast_bo(obj);
- *offset = ast_bo_mmap_offset(bo);
-
- drm_gem_object_unreference(obj);
- ret = 0;
-out_unlock:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-
-}
-
generated by cgit (git 2.34.1) at 2025-12-22 00:34:45 +0000