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linux/drivers/gpu/drm/ast/ast_drv.h
Thomas Zimmermann 03e7ae93c6 drm/ast: Put AST_DRAM_ constants into enum ast_dram_layout 
The AST_DRAM_ constants belong together, so put them in an enum
type. Rename type and variables to 'drm_layout', as there's already
another DRAM type in the ast driver (AST_DDR2, AST_DDR3).

v2:
- avoid compiler warning with switch default (Dan)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-7-tzimmermann@suse.de
2025-09-04 12:29:44 +02:00

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/*
* 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>
*/
#ifndef __AST_DRV_H__
#define __AST_DRV_H__
#include <linux/io.h>
#include <linux/types.h>
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_encoder.h>
#include <drm/drm_mode.h>
#include <drm/drm_framebuffer.h>
#include "ast_reg.h"
struct ast_vbios_enhtable;
#define DRIVER_AUTHOR "Dave Airlie"
#define DRIVER_NAME "ast"
#define DRIVER_DESC "AST"
#define DRIVER_MAJOR 0
#define DRIVER_MINOR 1
#define DRIVER_PATCHLEVEL 0
#define PCI_CHIP_AST2000 0x2000
#define PCI_CHIP_AST2100 0x2010
#define __AST_CHIP(__gen, __index) ((__gen) << 16 | (__index))
enum ast_chip {
/* 1st gen */
AST1000 = __AST_CHIP(1, 0), // unused
AST2000 = __AST_CHIP(1, 1),
/* 2nd gen */
AST1100 = __AST_CHIP(2, 0),
AST2100 = __AST_CHIP(2, 1),
AST2050 = __AST_CHIP(2, 2), // unused
/* 3rd gen */
AST2200 = __AST_CHIP(3, 0),
AST2150 = __AST_CHIP(3, 1),
/* 4th gen */
AST2300 = __AST_CHIP(4, 0),
AST1300 = __AST_CHIP(4, 1),
AST1050 = __AST_CHIP(4, 2), // unused
/* 5th gen */
AST2400 = __AST_CHIP(5, 0),
AST1400 = __AST_CHIP(5, 1),
AST1250 = __AST_CHIP(5, 2), // unused
/* 6th gen */
AST2500 = __AST_CHIP(6, 0),
AST2510 = __AST_CHIP(6, 1),
AST2520 = __AST_CHIP(6, 2), // unused
/* 7th gen */
AST2600 = __AST_CHIP(7, 0),
AST2620 = __AST_CHIP(7, 1), // unused
};
#define __AST_CHIP_GEN(__chip) (((unsigned long)(__chip)) >> 16)
enum ast_tx_chip {
AST_TX_NONE,
AST_TX_SIL164,
AST_TX_DP501,
AST_TX_ASTDP,
};
enum ast_config_mode {
ast_use_p2a,
ast_use_dt,
ast_use_defaults
};
enum ast_dram_layout {
AST_DRAM_512Mx16 = 0,
AST_DRAM_1Gx16 = 1,
AST_DRAM_512Mx32 = 2,
AST_DRAM_1Gx32 = 3,
AST_DRAM_2Gx16 = 6,
AST_DRAM_4Gx16 = 7,
AST_DRAM_8Gx16 = 8,
};
/*
* Hardware cursor
*/
#define AST_MAX_HWC_WIDTH 64
#define AST_MAX_HWC_HEIGHT 64
#define AST_HWC_PITCH (AST_MAX_HWC_WIDTH * SZ_2)
#define AST_HWC_SIZE (AST_MAX_HWC_HEIGHT * AST_HWC_PITCH)
/*
* Planes
*/
struct ast_plane {
struct drm_plane base;
u64 offset;
unsigned long size;
};
static inline struct ast_plane *to_ast_plane(struct drm_plane *plane)
{
return container_of(plane, struct ast_plane, base);
}
struct ast_cursor_plane {
struct ast_plane base;
u8 argb4444[AST_HWC_SIZE];
};
static inline struct ast_cursor_plane *to_ast_cursor_plane(struct drm_plane *plane)
{
return container_of(to_ast_plane(plane), struct ast_cursor_plane, base);
}
/*
* Connector
*/
struct ast_connector {
struct drm_connector base;
enum drm_connector_status physical_status;
};
static inline struct ast_connector *
to_ast_connector(struct drm_connector *connector)
{
return container_of(connector, struct ast_connector, base);
}
/*
* Device
*/
struct ast_device {
struct drm_device base;
void __iomem *regs;
void __iomem *ioregs;
void __iomem *dp501_fw_buf;
enum ast_config_mode config_mode;
enum ast_chip chip;
void __iomem *vram;
unsigned long vram_base;
unsigned long vram_size;
struct mutex modeset_lock; /* Protects access to modeset I/O registers in ioregs */
enum ast_tx_chip tx_chip;
struct ast_plane primary_plane;
struct ast_cursor_plane cursor_plane;
struct drm_crtc crtc;
union {
struct {
struct drm_encoder encoder;
struct ast_connector connector;
} vga;
struct {
struct drm_encoder encoder;
struct ast_connector connector;
} sil164;
struct {
struct drm_encoder encoder;
struct ast_connector connector;
} dp501;
struct {
struct drm_encoder encoder;
struct ast_connector connector;
} astdp;
} output;
bool support_wsxga_p; /* 1680x1050 */
bool support_fullhd; /* 1920x1080 */
bool support_wuxga; /* 1920x1200 */
u8 *dp501_fw_addr;
const struct firmware *dp501_fw; /* dp501 fw */
};
static inline struct ast_device *to_ast_device(struct drm_device *dev)
{
return container_of(dev, struct ast_device, base);
}
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);
static inline unsigned long __ast_gen(struct ast_device *ast)
{
return __AST_CHIP_GEN(ast->chip);
}
#define AST_GEN(__ast) __ast_gen(__ast)
static inline bool __ast_gen_is_eq(struct ast_device *ast, unsigned long gen)
{
return __ast_gen(ast) == gen;
}
#define IS_AST_GEN1(__ast) __ast_gen_is_eq(__ast, 1)
#define IS_AST_GEN2(__ast) __ast_gen_is_eq(__ast, 2)
#define IS_AST_GEN3(__ast) __ast_gen_is_eq(__ast, 3)
#define IS_AST_GEN4(__ast) __ast_gen_is_eq(__ast, 4)
#define IS_AST_GEN5(__ast) __ast_gen_is_eq(__ast, 5)
#define IS_AST_GEN6(__ast) __ast_gen_is_eq(__ast, 6)
#define IS_AST_GEN7(__ast) __ast_gen_is_eq(__ast, 7)
static inline u8 __ast_read8(const void __iomem *addr, u32 reg)
{
return ioread8(addr + reg);
}
static inline u32 __ast_read32(const void __iomem *addr, u32 reg)
{
return ioread32(addr + reg);
}
static inline void __ast_write8(void __iomem *addr, u32 reg, u8 val)
{
iowrite8(val, addr + reg);
}
static inline void __ast_write32(void __iomem *addr, u32 reg, u32 val)
{
iowrite32(val, addr + reg);
}
static inline u8 __ast_read8_i(void __iomem *addr, u32 reg, u8 index)
{
__ast_write8(addr, reg, index);
return __ast_read8(addr, reg + 1);
}
static inline u8 __ast_read8_i_masked(void __iomem *addr, u32 reg, u8 index, u8 read_mask)
{
u8 val = __ast_read8_i(addr, reg, index);
return val & read_mask;
}
static inline void __ast_write8_i(void __iomem *addr, u32 reg, u8 index, u8 val)
{
__ast_write8(addr, reg, index);
__ast_write8(addr, reg + 1, val);
}
static inline void __ast_write8_i_masked(void __iomem *addr, u32 reg, u8 index, u8 read_mask,
u8 val)
{
u8 tmp = __ast_read8_i_masked(addr, reg, index, read_mask);
tmp |= val;
__ast_write8_i(addr, reg, index, tmp);
}
static inline u32 ast_read32(struct ast_device *ast, u32 reg)
{
return __ast_read32(ast->regs, reg);
}
static inline void ast_write32(struct ast_device *ast, u32 reg, u32 val)
{
__ast_write32(ast->regs, reg, val);
}
static inline u8 ast_io_read8(struct ast_device *ast, u32 reg)
{
return __ast_read8(ast->ioregs, reg);
}
static inline void ast_io_write8(struct ast_device *ast, u32 reg, u8 val)
{
__ast_write8(ast->ioregs, reg, val);
}
static inline u8 ast_get_index_reg(struct ast_device *ast, u32 base, u8 index)
{
return __ast_read8_i(ast->ioregs, base, index);
}
static inline u8 ast_get_index_reg_mask(struct ast_device *ast, u32 base, u8 index,
u8 preserve_mask)
{
return __ast_read8_i_masked(ast->ioregs, base, index, preserve_mask);
}
static inline void ast_set_index_reg(struct ast_device *ast, u32 base, u8 index, u8 val)
{
__ast_write8_i(ast->ioregs, base, index, val);
}
static inline void ast_set_index_reg_mask(struct ast_device *ast, u32 base, u8 index,
u8 preserve_mask, u8 val)
{
__ast_write8_i_masked(ast->ioregs, base, index, preserve_mask, val);
}
struct ast_vbios_stdtable {
u8 misc;
u8 seq[4];
u8 crtc[25];
u8 ar[20];
u8 gr[9];
};
struct ast_vbios_dclk_info {
u8 param1;
u8 param2;
u8 param3;
};
struct ast_crtc_state {
struct drm_crtc_state base;
/* Last known format of primary plane */
const struct drm_format_info *format;
const struct ast_vbios_stdtable *std_table;
const struct ast_vbios_enhtable *vmode;
};
#define to_ast_crtc_state(state) container_of(state, struct ast_crtc_state, base)
#define AST_MM_ALIGN_SHIFT 4
#define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
#define AST_DP501_FW_VERSION_MASK GENMASK(7, 4)
#define AST_DP501_FW_VERSION_1 BIT(4)
#define AST_DP501_PNP_CONNECTED BIT(1)
#define AST_DP501_DEFAULT_DCLK 65
#define AST_DP501_GBL_VERSION 0xf000
#define AST_DP501_PNPMONITOR 0xf010
#define AST_DP501_LINKRATE 0xf014
#define AST_DP501_EDID_DATA 0xf020
/*
* ASTDP resoultion table:
* EX: ASTDP_A_B_C:
* A: Resolution
* B: Refresh Rate
* C: Misc information, such as CVT, Reduce Blanked
*/
#define ASTDP_640x480_60 0x00
#define ASTDP_640x480_72 0x01
#define ASTDP_640x480_75 0x02
#define ASTDP_640x480_85 0x03
#define ASTDP_800x600_56 0x04
#define ASTDP_800x600_60 0x05
#define ASTDP_800x600_72 0x06
#define ASTDP_800x600_75 0x07
#define ASTDP_800x600_85 0x08
#define ASTDP_1024x768_60 0x09
#define ASTDP_1024x768_70 0x0A
#define ASTDP_1024x768_75 0x0B
#define ASTDP_1024x768_85 0x0C
#define ASTDP_1280x1024_60 0x0D
#define ASTDP_1280x1024_75 0x0E
#define ASTDP_1280x1024_85 0x0F
#define ASTDP_1600x1200_60 0x10
#define ASTDP_320x240_60 0x11
#define ASTDP_400x300_60 0x12
#define ASTDP_512x384_60 0x13
#define ASTDP_1920x1200_60 0x14
#define ASTDP_1920x1080_60 0x15
#define ASTDP_1280x800_60 0x16
#define ASTDP_1280x800_60_RB 0x17
#define ASTDP_1440x900_60 0x18
#define ASTDP_1440x900_60_RB 0x19
#define ASTDP_1680x1050_60 0x1A
#define ASTDP_1680x1050_60_RB 0x1B
#define ASTDP_1600x900_60 0x1C
#define ASTDP_1600x900_60_RB 0x1D
#define ASTDP_1366x768_60 0x1E
#define ASTDP_1152x864_75 0x1F
int ast_mm_init(struct ast_device *ast);
/* ast_2000.c */
int ast_2000_post(struct ast_device *ast);
/* ast_2100.c */
int ast_2100_post(struct ast_device *ast);
/* ast_2300.c */
int ast_2300_post(struct ast_device *ast);
/* ast_2500.c */
void ast_2500_patch_ahb(void __iomem *regs);
int ast_2500_post(struct ast_device *ast);
/* ast_2600.c */
int ast_2600_post(struct ast_device *ast);
/* ast post */
int ast_post_gpu(struct ast_device *ast);
u32 ast_mindwm(struct ast_device *ast, u32 r);
void ast_moutdwm(struct ast_device *ast, u32 r, u32 v);
int ast_vga_output_init(struct ast_device *ast);
int ast_sil164_output_init(struct ast_device *ast);
/* ast_cursor.c */
long ast_cursor_vram_offset(struct ast_device *ast);
int ast_cursor_plane_init(struct ast_device *ast);
/* ast dp501 */
bool ast_backup_fw(struct ast_device *ast, u8 *addr, u32 size);
void ast_init_3rdtx(struct ast_device *ast);
int ast_dp501_output_init(struct ast_device *ast);
/* aspeed DP */
int ast_dp_launch(struct ast_device *ast);
int ast_astdp_output_init(struct ast_device *ast);
/* ast_mode.c */
int ast_mode_config_init(struct ast_device *ast);
int ast_plane_init(struct drm_device *dev, struct ast_plane *ast_plane,
u64 offset, unsigned long size,
uint32_t possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats, unsigned int format_count,
const uint64_t *format_modifiers,
enum drm_plane_type type);
void __iomem *ast_plane_vaddr(struct ast_plane *ast);
#endif
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