725 lines
20 KiB
C
725 lines
20 KiB
C
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/*
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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/acpi.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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#include <drm/drm_device.h>
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#include "atom.h"
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#include "radeon.h"
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#include "radeon_reg.h"
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/*
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* BIOS.
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*/
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/* If you boot an IGP board with a discrete card as the primary,
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* the IGP rom is not accessible via the rom bar as the IGP rom is
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* part of the system bios. On boot, the system bios puts a
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* copy of the igp rom at the start of vram if a discrete card is
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* present.
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*/
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static bool igp_read_bios_from_vram(struct radeon_device *rdev)
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{
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uint8_t __iomem *bios;
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resource_size_t vram_base;
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resource_size_t size = 256 * 1024; /* ??? */
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if (!(rdev->flags & RADEON_IS_IGP))
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if (!radeon_card_posted(rdev))
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return false;
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rdev->bios = NULL;
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vram_base = pci_resource_start(rdev->pdev, 0);
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bios = ioremap(vram_base, size);
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if (!bios) {
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return false;
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}
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if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) {
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iounmap(bios);
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return false;
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}
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rdev->bios = kmalloc(size, GFP_KERNEL);
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if (rdev->bios == NULL) {
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iounmap(bios);
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return false;
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}
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memcpy_fromio(rdev->bios, bios, size);
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iounmap(bios);
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return true;
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}
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static bool radeon_read_bios(struct radeon_device *rdev)
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{
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uint8_t __iomem *bios, val1, val2;
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size_t size;
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rdev->bios = NULL;
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/* XXX: some cards may return 0 for rom size? ddx has a workaround */
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bios = pci_map_rom(rdev->pdev, &size);
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if (!bios) {
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return false;
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}
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val1 = readb(&bios[0]);
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val2 = readb(&bios[1]);
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if (size == 0 || val1 != 0x55 || val2 != 0xaa) {
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pci_unmap_rom(rdev->pdev, bios);
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return false;
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}
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rdev->bios = kzalloc(size, GFP_KERNEL);
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if (rdev->bios == NULL) {
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pci_unmap_rom(rdev->pdev, bios);
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return false;
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}
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memcpy_fromio(rdev->bios, bios, size);
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pci_unmap_rom(rdev->pdev, bios);
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return true;
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}
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static bool radeon_read_platform_bios(struct radeon_device *rdev)
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{
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phys_addr_t rom = rdev->pdev->rom;
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size_t romlen = rdev->pdev->romlen;
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void __iomem *bios;
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rdev->bios = NULL;
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if (!rom || romlen == 0)
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return false;
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rdev->bios = kzalloc(romlen, GFP_KERNEL);
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if (!rdev->bios)
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return false;
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bios = ioremap(rom, romlen);
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if (!bios)
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goto free_bios;
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memcpy_fromio(rdev->bios, bios, romlen);
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iounmap(bios);
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if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa)
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goto free_bios;
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return true;
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free_bios:
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kfree(rdev->bios);
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return false;
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}
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#ifdef CONFIG_ACPI
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/* ATRM is used to get the BIOS on the discrete cards in
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* dual-gpu systems.
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*/
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/* retrieve the ROM in 4k blocks */
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#define ATRM_BIOS_PAGE 4096
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/**
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* radeon_atrm_call - fetch a chunk of the vbios
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*
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* @atrm_handle: acpi ATRM handle
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* @bios: vbios image pointer
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* @offset: offset of vbios image data to fetch
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* @len: length of vbios image data to fetch
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*
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* Executes ATRM to fetch a chunk of the discrete
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* vbios image on PX systems (all asics).
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* Returns the length of the buffer fetched.
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*/
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static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
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int offset, int len)
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{
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acpi_status status;
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union acpi_object atrm_arg_elements[2], *obj;
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struct acpi_object_list atrm_arg;
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struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL};
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atrm_arg.count = 2;
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atrm_arg.pointer = &atrm_arg_elements[0];
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atrm_arg_elements[0].type = ACPI_TYPE_INTEGER;
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atrm_arg_elements[0].integer.value = offset;
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atrm_arg_elements[1].type = ACPI_TYPE_INTEGER;
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atrm_arg_elements[1].integer.value = len;
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status = acpi_evaluate_object(atrm_handle, NULL, &atrm_arg, &buffer);
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if (ACPI_FAILURE(status)) {
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printk("failed to evaluate ATRM got %s\n", acpi_format_exception(status));
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return -ENODEV;
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}
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obj = (union acpi_object *)buffer.pointer;
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memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
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len = obj->buffer.length;
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kfree(buffer.pointer);
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return len;
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}
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static bool radeon_atrm_get_bios(struct radeon_device *rdev)
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{
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int ret;
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int size = 256 * 1024;
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int i;
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struct pci_dev *pdev = NULL;
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acpi_handle dhandle, atrm_handle;
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acpi_status status;
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bool found = false;
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/* ATRM is for the discrete card only */
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if (rdev->flags & RADEON_IS_IGP)
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return false;
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while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
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dhandle = ACPI_HANDLE(&pdev->dev);
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if (!dhandle)
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continue;
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status = acpi_get_handle(dhandle, "ATRM", &atrm_handle);
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if (ACPI_SUCCESS(status)) {
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found = true;
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break;
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}
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}
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if (!found) {
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while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
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dhandle = ACPI_HANDLE(&pdev->dev);
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if (!dhandle)
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continue;
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status = acpi_get_handle(dhandle, "ATRM", &atrm_handle);
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if (ACPI_SUCCESS(status)) {
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found = true;
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break;
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}
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}
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}
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if (!found)
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return false;
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pci_dev_put(pdev);
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rdev->bios = kmalloc(size, GFP_KERNEL);
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if (!rdev->bios) {
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DRM_ERROR("Unable to allocate bios\n");
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return false;
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}
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for (i = 0; i < size / ATRM_BIOS_PAGE; i++) {
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ret = radeon_atrm_call(atrm_handle,
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rdev->bios,
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(i * ATRM_BIOS_PAGE),
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ATRM_BIOS_PAGE);
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if (ret < ATRM_BIOS_PAGE)
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break;
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}
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if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
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kfree(rdev->bios);
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return false;
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}
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return true;
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}
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#else
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static inline bool radeon_atrm_get_bios(struct radeon_device *rdev)
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{
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return false;
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}
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#endif
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static bool ni_read_disabled_bios(struct radeon_device *rdev)
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{
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u32 bus_cntl;
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u32 d1vga_control;
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u32 d2vga_control;
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u32 vga_render_control;
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u32 rom_cntl;
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bool r;
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bus_cntl = RREG32(R600_BUS_CNTL);
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d1vga_control = RREG32(AVIVO_D1VGA_CONTROL);
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d2vga_control = RREG32(AVIVO_D2VGA_CONTROL);
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vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL);
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rom_cntl = RREG32(R600_ROM_CNTL);
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/* enable the rom */
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WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS));
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if (!ASIC_IS_NODCE(rdev)) {
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/* Disable VGA mode */
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WREG32(AVIVO_D1VGA_CONTROL,
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(d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
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AVIVO_DVGA_CONTROL_TIMING_SELECT)));
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WREG32(AVIVO_D2VGA_CONTROL,
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(d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
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AVIVO_DVGA_CONTROL_TIMING_SELECT)));
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WREG32(AVIVO_VGA_RENDER_CONTROL,
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(vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
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}
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WREG32(R600_ROM_CNTL, rom_cntl | R600_SCK_OVERWRITE);
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r = radeon_read_bios(rdev);
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/* restore regs */
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WREG32(R600_BUS_CNTL, bus_cntl);
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if (!ASIC_IS_NODCE(rdev)) {
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WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
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WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
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WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
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}
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WREG32(R600_ROM_CNTL, rom_cntl);
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return r;
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}
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static bool r700_read_disabled_bios(struct radeon_device *rdev)
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{
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uint32_t viph_control;
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uint32_t bus_cntl;
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uint32_t d1vga_control;
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uint32_t d2vga_control;
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uint32_t vga_render_control;
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uint32_t rom_cntl;
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uint32_t cg_spll_func_cntl = 0;
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uint32_t cg_spll_status;
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bool r;
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viph_control = RREG32(RADEON_VIPH_CONTROL);
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bus_cntl = RREG32(R600_BUS_CNTL);
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d1vga_control = RREG32(AVIVO_D1VGA_CONTROL);
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d2vga_control = RREG32(AVIVO_D2VGA_CONTROL);
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vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL);
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rom_cntl = RREG32(R600_ROM_CNTL);
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/* disable VIP */
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WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN));
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/* enable the rom */
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WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS));
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/* Disable VGA mode */
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WREG32(AVIVO_D1VGA_CONTROL,
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(d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
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AVIVO_DVGA_CONTROL_TIMING_SELECT)));
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WREG32(AVIVO_D2VGA_CONTROL,
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(d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
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AVIVO_DVGA_CONTROL_TIMING_SELECT)));
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WREG32(AVIVO_VGA_RENDER_CONTROL,
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(vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
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if (rdev->family == CHIP_RV730) {
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cg_spll_func_cntl = RREG32(R600_CG_SPLL_FUNC_CNTL);
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/* enable bypass mode */
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WREG32(R600_CG_SPLL_FUNC_CNTL, (cg_spll_func_cntl |
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R600_SPLL_BYPASS_EN));
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/* wait for SPLL_CHG_STATUS to change to 1 */
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cg_spll_status = 0;
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while (!(cg_spll_status & R600_SPLL_CHG_STATUS))
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cg_spll_status = RREG32(R600_CG_SPLL_STATUS);
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WREG32(R600_ROM_CNTL, (rom_cntl & ~R600_SCK_OVERWRITE));
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} else
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WREG32(R600_ROM_CNTL, (rom_cntl | R600_SCK_OVERWRITE));
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r = radeon_read_bios(rdev);
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/* restore regs */
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if (rdev->family == CHIP_RV730) {
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|
|
WREG32(R600_CG_SPLL_FUNC_CNTL, cg_spll_func_cntl);
|
||
|
|
|
||
|
|
/* wait for SPLL_CHG_STATUS to change to 1 */
|
||
|
|
cg_spll_status = 0;
|
||
|
|
while (!(cg_spll_status & R600_SPLL_CHG_STATUS))
|
||
|
|
cg_spll_status = RREG32(R600_CG_SPLL_STATUS);
|
||
|
|
}
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, viph_control);
|
||
|
|
WREG32(R600_BUS_CNTL, bus_cntl);
|
||
|
|
WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
|
||
|
|
WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
|
||
|
|
WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
|
||
|
|
WREG32(R600_ROM_CNTL, rom_cntl);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool r600_read_disabled_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
uint32_t viph_control;
|
||
|
|
uint32_t bus_cntl;
|
||
|
|
uint32_t d1vga_control;
|
||
|
|
uint32_t d2vga_control;
|
||
|
|
uint32_t vga_render_control;
|
||
|
|
uint32_t rom_cntl;
|
||
|
|
uint32_t general_pwrmgt;
|
||
|
|
uint32_t low_vid_lower_gpio_cntl;
|
||
|
|
uint32_t medium_vid_lower_gpio_cntl;
|
||
|
|
uint32_t high_vid_lower_gpio_cntl;
|
||
|
|
uint32_t ctxsw_vid_lower_gpio_cntl;
|
||
|
|
uint32_t lower_gpio_enable;
|
||
|
|
bool r;
|
||
|
|
|
||
|
|
viph_control = RREG32(RADEON_VIPH_CONTROL);
|
||
|
|
bus_cntl = RREG32(R600_BUS_CNTL);
|
||
|
|
d1vga_control = RREG32(AVIVO_D1VGA_CONTROL);
|
||
|
|
d2vga_control = RREG32(AVIVO_D2VGA_CONTROL);
|
||
|
|
vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL);
|
||
|
|
rom_cntl = RREG32(R600_ROM_CNTL);
|
||
|
|
general_pwrmgt = RREG32(R600_GENERAL_PWRMGT);
|
||
|
|
low_vid_lower_gpio_cntl = RREG32(R600_LOW_VID_LOWER_GPIO_CNTL);
|
||
|
|
medium_vid_lower_gpio_cntl = RREG32(R600_MEDIUM_VID_LOWER_GPIO_CNTL);
|
||
|
|
high_vid_lower_gpio_cntl = RREG32(R600_HIGH_VID_LOWER_GPIO_CNTL);
|
||
|
|
ctxsw_vid_lower_gpio_cntl = RREG32(R600_CTXSW_VID_LOWER_GPIO_CNTL);
|
||
|
|
lower_gpio_enable = RREG32(R600_LOWER_GPIO_ENABLE);
|
||
|
|
|
||
|
|
/* disable VIP */
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN));
|
||
|
|
/* enable the rom */
|
||
|
|
WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS));
|
||
|
|
/* Disable VGA mode */
|
||
|
|
WREG32(AVIVO_D1VGA_CONTROL,
|
||
|
|
(d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
|
||
|
|
AVIVO_DVGA_CONTROL_TIMING_SELECT)));
|
||
|
|
WREG32(AVIVO_D2VGA_CONTROL,
|
||
|
|
(d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
|
||
|
|
AVIVO_DVGA_CONTROL_TIMING_SELECT)));
|
||
|
|
WREG32(AVIVO_VGA_RENDER_CONTROL,
|
||
|
|
(vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
|
||
|
|
|
||
|
|
WREG32(R600_ROM_CNTL,
|
||
|
|
((rom_cntl & ~R600_SCK_PRESCALE_CRYSTAL_CLK_MASK) |
|
||
|
|
(1 << R600_SCK_PRESCALE_CRYSTAL_CLK_SHIFT) |
|
||
|
|
R600_SCK_OVERWRITE));
|
||
|
|
|
||
|
|
WREG32(R600_GENERAL_PWRMGT, (general_pwrmgt & ~R600_OPEN_DRAIN_PADS));
|
||
|
|
WREG32(R600_LOW_VID_LOWER_GPIO_CNTL,
|
||
|
|
(low_vid_lower_gpio_cntl & ~0x400));
|
||
|
|
WREG32(R600_MEDIUM_VID_LOWER_GPIO_CNTL,
|
||
|
|
(medium_vid_lower_gpio_cntl & ~0x400));
|
||
|
|
WREG32(R600_HIGH_VID_LOWER_GPIO_CNTL,
|
||
|
|
(high_vid_lower_gpio_cntl & ~0x400));
|
||
|
|
WREG32(R600_CTXSW_VID_LOWER_GPIO_CNTL,
|
||
|
|
(ctxsw_vid_lower_gpio_cntl & ~0x400));
|
||
|
|
WREG32(R600_LOWER_GPIO_ENABLE, (lower_gpio_enable | 0x400));
|
||
|
|
|
||
|
|
r = radeon_read_bios(rdev);
|
||
|
|
|
||
|
|
/* restore regs */
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, viph_control);
|
||
|
|
WREG32(R600_BUS_CNTL, bus_cntl);
|
||
|
|
WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
|
||
|
|
WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
|
||
|
|
WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
|
||
|
|
WREG32(R600_ROM_CNTL, rom_cntl);
|
||
|
|
WREG32(R600_GENERAL_PWRMGT, general_pwrmgt);
|
||
|
|
WREG32(R600_LOW_VID_LOWER_GPIO_CNTL, low_vid_lower_gpio_cntl);
|
||
|
|
WREG32(R600_MEDIUM_VID_LOWER_GPIO_CNTL, medium_vid_lower_gpio_cntl);
|
||
|
|
WREG32(R600_HIGH_VID_LOWER_GPIO_CNTL, high_vid_lower_gpio_cntl);
|
||
|
|
WREG32(R600_CTXSW_VID_LOWER_GPIO_CNTL, ctxsw_vid_lower_gpio_cntl);
|
||
|
|
WREG32(R600_LOWER_GPIO_ENABLE, lower_gpio_enable);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool avivo_read_disabled_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
uint32_t seprom_cntl1;
|
||
|
|
uint32_t viph_control;
|
||
|
|
uint32_t bus_cntl;
|
||
|
|
uint32_t d1vga_control;
|
||
|
|
uint32_t d2vga_control;
|
||
|
|
uint32_t vga_render_control;
|
||
|
|
uint32_t gpiopad_a;
|
||
|
|
uint32_t gpiopad_en;
|
||
|
|
uint32_t gpiopad_mask;
|
||
|
|
bool r;
|
||
|
|
|
||
|
|
seprom_cntl1 = RREG32(RADEON_SEPROM_CNTL1);
|
||
|
|
viph_control = RREG32(RADEON_VIPH_CONTROL);
|
||
|
|
bus_cntl = RREG32(RV370_BUS_CNTL);
|
||
|
|
d1vga_control = RREG32(AVIVO_D1VGA_CONTROL);
|
||
|
|
d2vga_control = RREG32(AVIVO_D2VGA_CONTROL);
|
||
|
|
vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL);
|
||
|
|
gpiopad_a = RREG32(RADEON_GPIOPAD_A);
|
||
|
|
gpiopad_en = RREG32(RADEON_GPIOPAD_EN);
|
||
|
|
gpiopad_mask = RREG32(RADEON_GPIOPAD_MASK);
|
||
|
|
|
||
|
|
WREG32(RADEON_SEPROM_CNTL1,
|
||
|
|
((seprom_cntl1 & ~RADEON_SCK_PRESCALE_MASK) |
|
||
|
|
(0xc << RADEON_SCK_PRESCALE_SHIFT)));
|
||
|
|
WREG32(RADEON_GPIOPAD_A, 0);
|
||
|
|
WREG32(RADEON_GPIOPAD_EN, 0);
|
||
|
|
WREG32(RADEON_GPIOPAD_MASK, 0);
|
||
|
|
|
||
|
|
/* disable VIP */
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN));
|
||
|
|
|
||
|
|
/* enable the rom */
|
||
|
|
WREG32(RV370_BUS_CNTL, (bus_cntl & ~RV370_BUS_BIOS_DIS_ROM));
|
||
|
|
|
||
|
|
/* Disable VGA mode */
|
||
|
|
WREG32(AVIVO_D1VGA_CONTROL,
|
||
|
|
(d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
|
||
|
|
AVIVO_DVGA_CONTROL_TIMING_SELECT)));
|
||
|
|
WREG32(AVIVO_D2VGA_CONTROL,
|
||
|
|
(d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
|
||
|
|
AVIVO_DVGA_CONTROL_TIMING_SELECT)));
|
||
|
|
WREG32(AVIVO_VGA_RENDER_CONTROL,
|
||
|
|
(vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
|
||
|
|
|
||
|
|
r = radeon_read_bios(rdev);
|
||
|
|
|
||
|
|
/* restore regs */
|
||
|
|
WREG32(RADEON_SEPROM_CNTL1, seprom_cntl1);
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, viph_control);
|
||
|
|
WREG32(RV370_BUS_CNTL, bus_cntl);
|
||
|
|
WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
|
||
|
|
WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
|
||
|
|
WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
|
||
|
|
WREG32(RADEON_GPIOPAD_A, gpiopad_a);
|
||
|
|
WREG32(RADEON_GPIOPAD_EN, gpiopad_en);
|
||
|
|
WREG32(RADEON_GPIOPAD_MASK, gpiopad_mask);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool legacy_read_disabled_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
uint32_t seprom_cntl1;
|
||
|
|
uint32_t viph_control;
|
||
|
|
uint32_t bus_cntl;
|
||
|
|
uint32_t crtc_gen_cntl;
|
||
|
|
uint32_t crtc2_gen_cntl;
|
||
|
|
uint32_t crtc_ext_cntl;
|
||
|
|
uint32_t fp2_gen_cntl;
|
||
|
|
bool r;
|
||
|
|
|
||
|
|
seprom_cntl1 = RREG32(RADEON_SEPROM_CNTL1);
|
||
|
|
viph_control = RREG32(RADEON_VIPH_CONTROL);
|
||
|
|
if (rdev->flags & RADEON_IS_PCIE)
|
||
|
|
bus_cntl = RREG32(RV370_BUS_CNTL);
|
||
|
|
else
|
||
|
|
bus_cntl = RREG32(RADEON_BUS_CNTL);
|
||
|
|
crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL);
|
||
|
|
crtc2_gen_cntl = 0;
|
||
|
|
crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
|
||
|
|
fp2_gen_cntl = 0;
|
||
|
|
|
||
|
|
if (rdev->pdev->device == PCI_DEVICE_ID_ATI_RADEON_QY) {
|
||
|
|
fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!(rdev->flags & RADEON_SINGLE_CRTC)) {
|
||
|
|
crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL);
|
||
|
|
}
|
||
|
|
|
||
|
|
WREG32(RADEON_SEPROM_CNTL1,
|
||
|
|
((seprom_cntl1 & ~RADEON_SCK_PRESCALE_MASK) |
|
||
|
|
(0xc << RADEON_SCK_PRESCALE_SHIFT)));
|
||
|
|
|
||
|
|
/* disable VIP */
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN));
|
||
|
|
|
||
|
|
/* enable the rom */
|
||
|
|
if (rdev->flags & RADEON_IS_PCIE)
|
||
|
|
WREG32(RV370_BUS_CNTL, (bus_cntl & ~RV370_BUS_BIOS_DIS_ROM));
|
||
|
|
else
|
||
|
|
WREG32(RADEON_BUS_CNTL, (bus_cntl & ~RADEON_BUS_BIOS_DIS_ROM));
|
||
|
|
|
||
|
|
/* Turn off mem requests and CRTC for both controllers */
|
||
|
|
WREG32(RADEON_CRTC_GEN_CNTL,
|
||
|
|
((crtc_gen_cntl & ~RADEON_CRTC_EN) |
|
||
|
|
(RADEON_CRTC_DISP_REQ_EN_B |
|
||
|
|
RADEON_CRTC_EXT_DISP_EN)));
|
||
|
|
if (!(rdev->flags & RADEON_SINGLE_CRTC)) {
|
||
|
|
WREG32(RADEON_CRTC2_GEN_CNTL,
|
||
|
|
((crtc2_gen_cntl & ~RADEON_CRTC2_EN) |
|
||
|
|
RADEON_CRTC2_DISP_REQ_EN_B));
|
||
|
|
}
|
||
|
|
/* Turn off CRTC */
|
||
|
|
WREG32(RADEON_CRTC_EXT_CNTL,
|
||
|
|
((crtc_ext_cntl & ~RADEON_CRTC_CRT_ON) |
|
||
|
|
(RADEON_CRTC_SYNC_TRISTAT |
|
||
|
|
RADEON_CRTC_DISPLAY_DIS)));
|
||
|
|
|
||
|
|
if (rdev->pdev->device == PCI_DEVICE_ID_ATI_RADEON_QY) {
|
||
|
|
WREG32(RADEON_FP2_GEN_CNTL, (fp2_gen_cntl & ~RADEON_FP2_ON));
|
||
|
|
}
|
||
|
|
|
||
|
|
r = radeon_read_bios(rdev);
|
||
|
|
|
||
|
|
/* restore regs */
|
||
|
|
WREG32(RADEON_SEPROM_CNTL1, seprom_cntl1);
|
||
|
|
WREG32(RADEON_VIPH_CONTROL, viph_control);
|
||
|
|
if (rdev->flags & RADEON_IS_PCIE)
|
||
|
|
WREG32(RV370_BUS_CNTL, bus_cntl);
|
||
|
|
else
|
||
|
|
WREG32(RADEON_BUS_CNTL, bus_cntl);
|
||
|
|
WREG32(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl);
|
||
|
|
if (!(rdev->flags & RADEON_SINGLE_CRTC)) {
|
||
|
|
WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
|
||
|
|
}
|
||
|
|
WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
|
||
|
|
if (rdev->pdev->device == PCI_DEVICE_ID_ATI_RADEON_QY) {
|
||
|
|
WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
|
||
|
|
}
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool radeon_read_disabled_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
if (rdev->flags & RADEON_IS_IGP)
|
||
|
|
return igp_read_bios_from_vram(rdev);
|
||
|
|
else if (rdev->family >= CHIP_BARTS)
|
||
|
|
return ni_read_disabled_bios(rdev);
|
||
|
|
else if (rdev->family >= CHIP_RV770)
|
||
|
|
return r700_read_disabled_bios(rdev);
|
||
|
|
else if (rdev->family >= CHIP_R600)
|
||
|
|
return r600_read_disabled_bios(rdev);
|
||
|
|
else if (rdev->family >= CHIP_RS600)
|
||
|
|
return avivo_read_disabled_bios(rdev);
|
||
|
|
else
|
||
|
|
return legacy_read_disabled_bios(rdev);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_ACPI
|
||
|
|
static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
struct acpi_table_header *hdr;
|
||
|
|
acpi_size tbl_size;
|
||
|
|
UEFI_ACPI_VFCT *vfct;
|
||
|
|
unsigned offset;
|
||
|
|
bool r = false;
|
||
|
|
|
||
|
|
if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr)))
|
||
|
|
return false;
|
||
|
|
tbl_size = hdr->length;
|
||
|
|
if (tbl_size < sizeof(UEFI_ACPI_VFCT)) {
|
||
|
|
DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n");
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
vfct = (UEFI_ACPI_VFCT *)hdr;
|
||
|
|
offset = vfct->VBIOSImageOffset;
|
||
|
|
|
||
|
|
while (offset < tbl_size) {
|
||
|
|
GOP_VBIOS_CONTENT *vbios = (GOP_VBIOS_CONTENT *)((char *)hdr + offset);
|
||
|
|
VFCT_IMAGE_HEADER *vhdr = &vbios->VbiosHeader;
|
||
|
|
|
||
|
|
offset += sizeof(VFCT_IMAGE_HEADER);
|
||
|
|
if (offset > tbl_size) {
|
||
|
|
DRM_ERROR("ACPI VFCT image header truncated\n");
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
offset += vhdr->ImageLength;
|
||
|
|
if (offset > tbl_size) {
|
||
|
|
DRM_ERROR("ACPI VFCT image truncated\n");
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (vhdr->ImageLength &&
|
||
|
|
vhdr->PCIBus == rdev->pdev->bus->number &&
|
||
|
|
vhdr->PCIDevice == PCI_SLOT(rdev->pdev->devfn) &&
|
||
|
|
vhdr->PCIFunction == PCI_FUNC(rdev->pdev->devfn) &&
|
||
|
|
vhdr->VendorID == rdev->pdev->vendor &&
|
||
|
|
vhdr->DeviceID == rdev->pdev->device) {
|
||
|
|
rdev->bios = kmemdup(&vbios->VbiosContent,
|
||
|
|
vhdr->ImageLength,
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (rdev->bios)
|
||
|
|
r = true;
|
||
|
|
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
DRM_ERROR("ACPI VFCT table present but broken (too short #2)\n");
|
||
|
|
|
||
|
|
out:
|
||
|
|
acpi_put_table(hdr);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
static inline bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
bool radeon_get_bios(struct radeon_device *rdev)
|
||
|
|
{
|
||
|
|
bool r;
|
||
|
|
uint16_t tmp;
|
||
|
|
|
||
|
|
r = radeon_atrm_get_bios(rdev);
|
||
|
|
if (!r)
|
||
|
|
r = radeon_acpi_vfct_bios(rdev);
|
||
|
|
if (!r)
|
||
|
|
r = igp_read_bios_from_vram(rdev);
|
||
|
|
if (!r)
|
||
|
|
r = radeon_read_bios(rdev);
|
||
|
|
if (!r)
|
||
|
|
r = radeon_read_disabled_bios(rdev);
|
||
|
|
if (!r)
|
||
|
|
r = radeon_read_platform_bios(rdev);
|
||
|
|
if (!r || rdev->bios == NULL) {
|
||
|
|
DRM_ERROR("Unable to locate a BIOS ROM\n");
|
||
|
|
rdev->bios = NULL;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) {
|
||
|
|
printk("BIOS signature incorrect %x %x\n", rdev->bios[0], rdev->bios[1]);
|
||
|
|
goto free_bios;
|
||
|
|
}
|
||
|
|
|
||
|
|
tmp = RBIOS16(0x18);
|
||
|
|
if (RBIOS8(tmp + 0x14) != 0x0) {
|
||
|
|
DRM_INFO("Not an x86 BIOS ROM, not using.\n");
|
||
|
|
goto free_bios;
|
||
|
|
}
|
||
|
|
|
||
|
|
rdev->bios_header_start = RBIOS16(0x48);
|
||
|
|
if (!rdev->bios_header_start) {
|
||
|
|
goto free_bios;
|
||
|
|
}
|
||
|
|
tmp = rdev->bios_header_start + 4;
|
||
|
|
if (!memcmp(rdev->bios + tmp, "ATOM", 4) ||
|
||
|
|
!memcmp(rdev->bios + tmp, "MOTA", 4)) {
|
||
|
|
rdev->is_atom_bios = true;
|
||
|
|
} else {
|
||
|
|
rdev->is_atom_bios = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
DRM_DEBUG("%sBIOS detected\n", rdev->is_atom_bios ? "ATOM" : "COM");
|
||
|
|
return true;
|
||
|
|
free_bios:
|
||
|
|
kfree(rdev->bios);
|
||
|
|
rdev->bios = NULL;
|
||
|
|
return false;
|
||
|
|
}
|