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/*
* Copyright 2008 Advanced Micro Devices, Inc.
* Copyright 2008 Red Hat Inc.
* Copyright 2009 Jerome Glisse.
*
* 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, sublicense,
* 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 above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*
* Authors: Dave Airlie
* Alex Deucher
* Jerome Glisse
*/
#include <linux/seq_file.h>
#include "drmP.h"
#include "radeon_reg.h"
#include "radeon.h"
#include "r420d.h"
/* r420,r423,rv410 depends on : */
void r100_pci_gart_disable(struct radeon_device *rdev);
void r100_hdp_reset(struct radeon_device *rdev);
void r100_mc_setup(struct radeon_device *rdev);
int r100_gui_wait_for_idle(struct radeon_device *rdev);
void r100_mc_disable_clients(struct radeon_device *rdev);
void r300_vram_info(struct radeon_device *rdev);
int r300_mc_wait_for_idle(struct radeon_device *rdev);
int rv370_pcie_gart_enable(struct radeon_device *rdev);
void rv370_pcie_gart_disable(struct radeon_device *rdev);
/* This files gather functions specifics to :
* r420,r423,rv410
*
* Some of these functions might be used by newer ASICs.
*/
void r420_gpu_init(struct radeon_device *rdev);
int r420_debugfs_pipes_info_init(struct radeon_device *rdev);
/*
* MC
*/
int r420_mc_init(struct radeon_device *rdev)
{
int r;
if (r100_debugfs_rbbm_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for RBBM !\n");
}
if (r420_debugfs_pipes_info_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for pipes !\n");
}
r420_gpu_init(rdev);
r100_pci_gart_disable(rdev);
if (rdev->flags & RADEON_IS_PCIE) {
rv370_pcie_gart_disable(rdev);
}
/* Setup GPU memory space */
rdev->mc.vram_location = 0xFFFFFFFFUL;
rdev->mc.gtt_location = 0xFFFFFFFFUL;
if (rdev->flags & RADEON_IS_AGP) {
r = radeon_agp_init(rdev);
if (r) {
printk(KERN_WARNING "[drm] Disabling AGP\n");
rdev->flags &= ~RADEON_IS_AGP;
rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
} else {
rdev->mc.gtt_location = rdev->mc.agp_base;
}
}
r = radeon_mc_setup(rdev);
if (r) {
return r;
}
/* Program GPU memory space */
r100_mc_disable_clients(rdev);
if (r300_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
r100_mc_setup(rdev);
return 0;
}
void r420_mc_fini(struct radeon_device *rdev)
{
if (rdev->flags & RADEON_IS_PCIE) {
rv370_pcie_gart_disable(rdev);
radeon_gart_table_vram_free(rdev);
} else {
r100_pci_gart_disable(rdev);
radeon_gart_table_ram_free(rdev);
}
radeon_gart_fini(rdev);
}
/*
* Global GPU functions
*/
void r420_errata(struct radeon_device *rdev)
{
rdev->pll_errata = 0;
}
void r420_pipes_init(struct radeon_device *rdev)
{
unsigned tmp;
unsigned gb_pipe_select;
unsigned num_pipes;
/* GA_ENHANCE workaround TCL deadlock issue */
WREG32(0x4274, (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3));
/* get max number of pipes */
gb_pipe_select = RREG32(0x402C);
num_pipes = ((gb_pipe_select >> 12) & 3) + 1;
rdev->num_gb_pipes = num_pipes;
tmp = 0;
switch (num_pipes) {
default:
/* force to 1 pipe */
num_pipes = 1;
case 1:
tmp = (0 << 1);
break;
case 2:
tmp = (3 << 1);
break;
case 3:
tmp = (6 << 1);
break;
case 4:
tmp = (7 << 1);
break;
}
WREG32(0x42C8, (1 << num_pipes) - 1);
/* Sub pixel 1/12 so we can have 4K rendering according to doc */
tmp |= (1 << 4) | (1 << 0);
WREG32(0x4018, tmp);
if (r100_gui_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait GUI idle while "
"programming pipes. Bad things might happen.\n");
}
tmp = RREG32(0x170C);
WREG32(0x170C, tmp | (1 << 31));
WREG32(R300_RB2D_DSTCACHE_MODE,
RREG32(R300_RB2D_DSTCACHE_MODE) |
R300_DC_AUTOFLUSH_ENABLE |
R300_DC_DC_DISABLE_IGNORE_PE);
if (r100_gui_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait GUI idle while "
"programming pipes. Bad things might happen.\n");
}
if (rdev->family == CHIP_RV530) {
tmp = RREG32(RV530_GB_PIPE_SELECT2);
if ((tmp & 3) == 3)
rdev->num_z_pipes = 2;
else
rdev->num_z_pipes = 1;
} else
rdev->num_z_pipes = 1;
DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n",
rdev->num_gb_pipes, rdev->num_z_pipes);
}
void r420_gpu_init(struct radeon_device *rdev)
{
r100_hdp_reset(rdev);
r420_pipes_init(rdev);
if (r300_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
}
/*
* r420,r423,rv410 VRAM info
*/
void r420_vram_info(struct radeon_device *rdev)
{
r300_vram_info(rdev);
}
/*
* Debugfs info
*/
#if defined(CONFIG_DEBUG_FS)
static int r420_debugfs_pipes_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct radeon_device *rdev = dev->dev_private;
uint32_t tmp;
tmp = RREG32(R400_GB_PIPE_SELECT);
seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
tmp = RREG32(R300_GB_TILE_CONFIG);
seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
tmp = RREG32(R300_DST_PIPE_CONFIG);
seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
return 0;
}
static struct drm_info_list r420_pipes_info_list[] = {
{"r420_pipes_info", r420_debugfs_pipes_info, 0, NULL},
};
#endif
int r420_debugfs_pipes_info_init(struct radeon_device *rdev)
{
#if defined(CONFIG_DEBUG_FS)
return radeon_debugfs_add_files(rdev, r420_pipes_info_list, 1);
#else
return 0;
#endif
}
u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg)
{
u32 r;
WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg));
r = RREG32(R_0001FC_MC_IND_DATA);
return r;
}
void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
{
WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) |
S_0001F8_MC_IND_WR_EN(1));
WREG32(R_0001FC_MC_IND_DATA, v);
}
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