path: root/drivers/gpu/drm/radeon/rv770.c

/*
 * 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/firmware.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include "drmP.h"
#include "radeon.h"
#include "radeon_asic.h"
#include "radeon_drm.h"
#include "rv770d.h"
#include "atom.h"
#include "avivod.h"

#define R700_PFP_UCODE_SIZE 848
#define R700_PM4_UCODE_SIZE 1360

static void rv770_gpu_init(struct radeon_device *rdev);
void rv770_fini(struct radeon_device *rdev);

/* get temperature in millidegrees */
u32 rv770_get_temp(struct radeon_device *rdev)
{
	u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
		ASIC_T_SHIFT;
	u32 actual_temp = 0;

	if ((temp >> 9) & 1)
		actual_temp = 0;
	else
		actual_temp = (temp >> 1) & 0xff;

	return actual_temp * 1000;
}

void rv770_pm_misc(struct radeon_device *rdev)
{
	int req_ps_idx = rdev->pm.requested_power_state_index;
	int req_cm_idx = rdev->pm.requested_clock_mode_index;
	struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
	struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;

	if ((voltage->type == VOLTAGE_SW) && voltage->voltage) {
		if (voltage->voltage != rdev->pm.current_vddc) {
			radeon_atom_set_voltage(rdev, voltage->voltage);
			rdev->pm.current_vddc = voltage->voltage;
			DRM_DEBUG("Setting: v: %d\n", voltage->voltage);
		}
	}
}

/*
 * GART
 */
int rv770_pcie_gart_enable(struct radeon_device *rdev)
{
	u32 tmp;
	int r, i;

	if (rdev->gart.table.vram.robj == NULL) {
		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
		return -EINVAL;
	}
	r = radeon_gart_table_vram_pin(rdev);
	if (r)
		return r;
	radeon_gart_restore(rdev);
	/* Setup L2 cache */
	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
				ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
				EFFECTIVE_L2_QUEUE_SIZE(7));
	WREG32(VM_L2_CNTL2, 0);
	WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
	/* Setup TLB control */
	tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
		SYSTEM_ACCESS_MODE_NOT_IN_SYS |
		SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
		EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
	WREG32