// SPDX-License-Identifier: GPL-2.0-only
#include <linux/of_address.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <drm/drm_aperture.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_state_helper.h>
#include <drm/drm_connector.h>
#include <drm/drm_damage_helper.h>
#include <drm/drm_device.h>
#include <drm/drm_drv.h>
#include <drm/drm_fbdev_shmem.h>
#include <drm/drm_format_helper.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_simple_kms_helper.h>
#define DRIVER_NAME "ofdrm"
#define DRIVER_DESC "DRM driver for OF platform devices"
#define DRIVER_DATE "20220501"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
#define PCI_VENDOR_ID_ATI_R520 0x7100
#define PCI_VENDOR_ID_ATI_R600 0x9400
#define OFDRM_GAMMA_LUT_SIZE 256
/* Definitions used by the Avivo palette */
#define AVIVO_DC_LUT_RW_SELECT 0x6480
#define AVIVO_DC_LUT_RW_MODE 0x6484
#define AVIVO_DC_LUT_RW_INDEX 0x6488
#define AVIVO_DC_LUT_SEQ_COLOR 0x648c
#define AVIVO_DC_LUT_PWL_DATA 0x6490
#define AVIVO_DC_LUT_30_COLOR 0x6494
#define AVIVO_DC_LUT_READ_PIPE_SELECT 0x6498
#define AVIVO_DC_LUT_WRITE_EN_MASK 0x649c
#define AVIVO_DC_LUT_AUTOFILL 0x64a0
#define AVIVO_DC_LUTA_CONTROL 0x64c0
#define AVIVO_DC_LUTA_BLACK_OFFSET_BLUE 0x64c4
#define AVIVO_DC_LUTA_BLACK_OFFSET_GREEN 0x64c8
#define AVIVO_DC_LUTA_BLACK_OFFSET_RED 0x64cc
#define AVIVO_DC_LUTA_WHITE_OFFSET_BLUE 0x64d0
#define AVIVO_DC_LUTA_WHITE_OFFSET_GREEN 0x64d4
#define AVIVO_DC_LUTA_WHITE_OFFSET_RED 0x64d8
#define AVIVO_DC_LUTB_CONTROL 0x6cc0
#define AVIVO_DC_LUTB_BLACK_OFFSET_BLUE 0x6cc4
#define AVIVO_DC_LUTB_BLACK_OFFSET_GREEN 0x6cc8
#define AVIVO_DC_LUTB_BLACK_OFFSET_RED 0x6ccc
#define AVIVO_DC_LUTB_WHITE_OFFSET_BLUE 0x6cd0
#define AVIVO_DC_LUTB_WHITE_OFFSET_GREEN 0x6cd4
#define AVIVO_DC_LUTB_WHITE_OFFSET_RED 0x6cd8
enum ofdrm_model {
OFDRM_MODEL_UNKNOWN,
OFDRM_MODEL_MACH64, /* ATI Mach64 */
OFDRM_MODEL_RAGE128, /* ATI Rage128 */
OFDRM_MODEL_RAGE_M3A, /* ATI Rage Mobility M3 Head A */
OFDRM_MODEL_RAGE_M3B, /* ATI Rage Mobility M3 Head B */
OFDRM_MODEL_RADEON, /* ATI Radeon */
OFDRM_MODEL_GXT2000, /* IBM GXT2000 */
OFDRM_MODEL_AVIVO, /* ATI R5xx */
OFDRM_MODEL_QEMU, /* QEMU VGA */
};
/*
* Helpers for display nodes
*/
static int display_get_validated_int(struct drm_device *dev, const char *name, uint32_t value)
{
if (value > INT_MAX) {
drm_err(dev, "invalid framebuffer %s of %u\n", name, value);
return -EINVAL;
}
return (int)value;
}
static int display_get_validated_int0(struct drm_device *dev, const char *name, uint32_t value)
{
if (!value) {
drm_err(dev, "invalid framebuffer %s of %u