/*
* 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 "drmP.h"
#include "radeon_reg.h"
#include "radeon.h"
/* rs690,rs740 depends on : */
void r100_hdp_reset(struct radeon_device *rdev);
int r300_mc_wait_for_idle(struct radeon_device *rdev);
void r420_pipes_init(struct radeon_device *rdev);
void rs400_gart_disable(struct radeon_device *rdev);
int rs400_gart_enable(struct radeon_device *rdev);
void rs400_gart_adjust_size(struct radeon_device *rdev);
void rs600_mc_disable_clients(struct radeon_device *rdev);
void rs600_disable_vga(struct radeon_device *rdev);
/* This files gather functions specifics to :
* rs690,rs740
*
* Some of these functions might be used by newer ASICs.
*/
void rs690_gpu_init(struct radeon_device *rdev);
int rs690_mc_wait_for_idle(struct radeon_device *rdev);
/*
* MC functions.
*/
int rs690_mc_init(struct radeon_device *rdev)
{
uint32_t tmp;
int r;
if (r100_debugfs_rbbm_init(rdev)) {
DRM_ERROR("Failed to register debugfs file for RBBM !\n");
}
rs690_gpu_init(rdev);
rs400_gart_disable(rdev);
/* Setup GPU memory space */
rdev->mc.gtt_location = rdev->mc.vram_size;
rdev->mc.gtt_location += (rdev->mc.gtt_size - 1);
rdev->mc.gtt_location &= ~(rdev->mc.gtt_size - 1);
rdev->mc.vram_location = 0xFFFFFFFFUL;
r = radeon_mc_setup(rdev);
if (r) {
return r;
}
/* Program GPU memory space */
rs600_mc_disable_clients(rdev);
if (rs690_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
tmp = REG_SET(RS690_MC_FB_TOP, tmp >> 16);
tmp |= REG_SET(RS690_MC_FB_START, rdev->mc.vram_location >> 16);
WREG32_MC(RS690_MCCFG_FB_LOCATION, tmp);
/* FIXME: Does this reg exist on RS480,RS740 ? */
WREG32(0x310, rdev->mc.vram_location);
WREG32(RS690_HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
return 0;
}
void rs690_mc_fini(struct radeon_device *rdev)
{
rs400_gart_disable(rdev);
radeon_gart_table_ram_free(rdev);
radeon_gart_fini(rdev);
}
/*
* Global GPU functions
*/
int rs690_mc_wait_for_idle(struct radeon_device *rdev)
{
unsigned i;
uint32_t tmp;
for (i = 0; i < rdev->usec_timeout; i++) {
/* read MC_STATUS */
tmp = RREG32_MC(RS690_MC_STATUS);
if (tmp & RS690_MC_STATUS_IDLE) {
return 0;
}
DRM_UDELAY(1);
}
return -1;
}
void rs690_errata(struct radeon_device *rdev)
{
rdev->pll_errata = 0;
}
void rs690_gpu_init(struct radeon_device *rdev)
{
/* FIXME: HDP same place on rs690 ? */
r100_hdp_reset(rdev);
rs600_disable_vga(rdev);
/* FIXME: is this correct ? */
r420_pipes_init(rdev);
if (rs690_mc_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait MC idle while "
"programming pipes. Bad things might happen.\n");
}
}
/*
* VRAM info.
*/
void rs690_vram_info(struct radeon_device *rdev)
{
uint32_t tmp;
rs400_gart_adjust_size(rdev);
/* DDR for all card after R300 & IGP */
rdev->mc.vram_is_ddr = true;
/* FIXME: is this correct for RS690/RS740 ? */
tmp = RREG32(RADEON_MEM_CNTL);
if (tmp & R300_MEM_NUM_CHANNELS_MASK) {
rdev->mc.vram_width = 128;
} else {
rdev->mc.vram_width = 64;
}
rdev->mc.vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
}
/*
* Indirect registers accessor
*/
uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
{
uint32_t r;
WREG32(RS690_MC_INDEX, (reg & RS690_MC_INDEX_MASK));
r = RREG32(RS690_MC_DATA);
WREG32(RS690_MC_INDEX, RS690_MC_INDEX_MASK);
return r;
}
void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
{
WREG32(RS690_MC_INDEX,
RS690_MC_INDEX_WR_EN | ((reg) & RS690_MC_INDEX_MASK));
WREG32(RS690_MC_DATA, v);
WREG32(RS690_MC_INDEX, RS690_MC_INDEX_WR_ACK);
}
