drm/radeon/kms: add r600 KMS support

This adds the r600 KMS + CS support to the Linux kernel.

The r600 TTM support is quite basic and still needs more
work esp around using interrupts, but the polled fencing
should work okay for now.

Also currently TTM is using memcpy to do VRAM moves,
the code is here to use a 3D blit to do this, but
isn't fully debugged yet.

Authors:
Alex Deucher <alexdeucher@gmail.com>
Dave Airlie <airlied@redhat.com>
Jerome Glisse <jglisse@redhat.com>

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1643 insertions, 71 deletions

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 538cd907df69..d8fcef44a69f 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -25,12 +25,46 @@
  *          Alex Deucher
  *          Jerome Glisse
  */
+#include <linux/seq_file.h>
+#include <linux/firmware.h>
+#include <linux/platform_device.h>
 #include "drmP.h"
-#include "radeon_reg.h"
+#include "radeon_drm.h"
 #include "radeon.h"
+#include "radeon_mode.h"
+#include "radeon_share.h"
+#include "r600d.h"
+#include "avivod.h"
+#include "atom.h"
 
-/* r600,rv610,rv630,rv620,rv635,rv670 depends on : */
-void rs600_mc_disable_clients(struct radeon_device *rdev);
+#define PFP_UCODE_SIZE 576
+#define PM4_UCODE_SIZE 1792
+#define R700_PFP_UCODE_SIZE 848
+#define R700_PM4_UCODE_SIZE 1360
+
+/* Firmware Names */
+MODULE_FIRMWARE("radeon/R600_pfp.bin");
+MODULE_FIRMWARE("radeon/R600_me.bin");
+MODULE_FIRMWARE("radeon/RV610_pfp.bin");
+MODULE_FIRMWARE("radeon/RV610_me.bin");
+MODULE_FIRMWARE("radeon/RV630_pfp.bin");
+MODULE_FIRMWARE("radeon/RV630_me.bin");
+MODULE_FIRMWARE("radeon/RV620_pfp.bin");
+MODULE_FIRMWARE("radeon/RV620_me.bin");
+MODULE_FIRMWARE("radeon/RV635_pfp.bin");
+MODULE_FIRMWARE("radeon/RV635_me.bin");
+MODULE_FIRMWARE("radeon/RV670_pfp.bin");
+MODULE_FIRMWARE("radeon/RV670_me.bin");
+MODULE_FIRMWARE("radeon/RS780_pfp.bin");
+MODULE_FIRMWARE("radeon/RS780_me.bin");
+MODULE_FIRMWARE("radeon/RV770_pfp.bin");
+MODULE_FIRMWARE("radeon/RV770_me.bin");
+MODULE_FIRMWARE("radeon/RV730_pfp.bin");
+MODULE_FIRMWARE("radeon/RV730_me.bin");
+MODULE_FIRMWARE("radeon/RV710_pfp.bin");
+MODULE_FIRMWARE("radeon/RV710_me.bin");
+
+int r600_debugfs_mc_info_init(struct radeon_device *rdev);
 
 /* This files gather functions specifics to:
  * r600,rv610,rv630,rv620,rv635,rv670
@@ -39,87 +73,270 @@ void rs600_mc_disable_clients(struct radeon_device *rdev);
  */
 int r600_mc_wait_for_idle(struct radeon_device *rdev);
 void r600_gpu_init(struct radeon_device *rdev);
+void r600_fini(struct radeon_device *rdev);
 
 
 /*
- * MC
+ * R600 PCIE GART
  */
-int r600_mc_init(struct radeon_device *rdev)
+int r600_gart_clear_page(struct radeon_device *rdev, int i)
 {
-	uint32_t tmp;
+	void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
+	u64 pte;
 
-	r600_gpu_init(rdev);
+	if (i < 0 || i > rdev->gart.num_gpu_pages)
+		return -EINVAL;
+	pte = 0;
+	writeq(pte, ((void __iomem *)ptr) + (i * 8));
+	return 0;
+}
 
-	/* setup the gart before changing location so we can ask to
-	 * discard unmapped mc request
-	 */
-	/* FIXME: disable out of gart access */
-	tmp = rdev->mc.gtt_location / 4096;
-	tmp = REG_SET(R600_LOGICAL_PAGE_NUMBER, tmp);
-	WREG32(R600_MC_VM_SYSTEM_APERTURE_LOW_ADDR, tmp);
-	tmp = (rdev->mc.gtt_location + rdev->mc.gtt_size) / 4096;
-	tmp = REG_SET(R600_LOGICAL_PAGE_NUMBER, tmp);
-	WREG32(R600_MC_VM_SYSTEM_APERTURE_HIGH_ADDR, tmp);
-
-	rs600_mc_disable_clients(rdev);
-	if (r600_mc_wait_for_idle(rdev)) {
-		printk(KERN_WARNING "Failed to wait MC idle while "
-		       "programming pipes. Bad things might happen.\n");
+void r600_pcie_gart_tlb_flush(struct radeon_device *rdev)
+{
+	unsigned i;
+	u32 tmp;
+
+	WREG32(VM_CONTEXT0_INVALIDATION_LOW_ADDR, rdev->mc.gtt_start >> 12);
+	WREG32(VM_CONTEXT0_INVALIDATION_HIGH_ADDR, (rdev->mc.gtt_end - 1) >> 12);
+	WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		/* read MC_STATUS */
+		tmp = RREG32(VM_CONTEXT0_REQUEST_RESPONSE);
+		tmp = (tmp & RESPONSE_TYPE_MASK) >> RESPONSE_TYPE_SHIFT;
+		if (tmp == 2) {
+			printk(KERN_WARNING "[drm] r600 flush TLB failed\n");
+			return;
+		}
+		if (tmp) {
+			return;
+		}
+		udelay(1);
+	}
+}
+
+int r600_pcie_gart_enable(struct radeon_device *rdev)
+{
+	u32 tmp;
+	int r, i;
+
+	/* Initialize common gart structure */
+	r = radeon_gart_init(rdev);
+	if (r) {
+		return r;
+	}
+	rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
+	r = radeon_gart_table_vram_alloc(rdev);
+	if (r) {
+		return r;
 	}
+	for (i = 0; i < rdev->gart.num_gpu_pages; i++)
+		r600_gart_clear_page(rdev, i);
+	/* 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(0) | BANK_SELECT_1(1));
+	/* Setup TLB control */
+	tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
+		SYSTEM_ACCESS_MODE_NOT_IN_SYS |
+		EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
+		ENABLE_WAIT_L2_QUERY;
+	WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
+	WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
+	WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, (rdev->mc.gtt_end - 1) >> 12);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
+	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
+				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
+	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
+			(u32)(rdev->dummy_page.addr >> 12));
+	for (i = 1; i < 7; i++)
+		WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 
-	tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
-	tmp = REG_SET(R600_MC_FB_TOP, tmp >> 24);
-	tmp |= REG_SET(R600_MC_FB_BASE, rdev->mc.vram_location >> 24);
-	WREG32(R600_MC_VM_FB_LOCATION, tmp);
-	tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
-	tmp = REG_SET(R600_MC_AGP_TOP, tmp >> 22);
-	WREG32(R600_MC_VM_AGP_TOP, tmp);
-	tmp = REG_SET(R600_MC_AGP_BOT, rdev->mc.gtt_location >> 22);
-	WREG32(R600_MC_VM_AGP_BOT, tmp);
+	r600_pcie_gart_tlb_flush(rdev);
+	rdev->gart.ready = true;
 	return 0;
 }
 
-void r600_mc_fini(struct radeon_device *rdev)
+void r600_pcie_gart_disable(struct radeon_device *rdev)
 {
-	/* FIXME: implement */
-}
+	u32 tmp;
+	int i;
 
+	/* Clear ptes*/
+	for (i = 0; i < rdev->gart.num_gpu_pages; i++)
+		r600_gart_clear_page(rdev, i);
+	r600_pcie_gart_tlb_flush(rdev);
+	/* Disable all tables */
+	for (i = 0; i < 7; i++)
+		WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 
-/*
- * Global GPU functions
- */
-void r600_errata(struct radeon_device *rdev)
-{
-	rdev->pll_errata = 0;
+	/* Disable L2 cache */
+	WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
+				EFFECTIVE_L2_QUEUE_SIZE(7));
+	WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
+	/* Setup L1 TLB control */
+	tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
+		ENABLE_WAIT_L2_QUERY;
+	WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp);
+	WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
 }
 
 int r600_mc_wait_for_idle(struct radeon_device *rdev)
 {
-	/* FIXME: implement */
-	return 0;
+	unsigned i;
+	u32 tmp;
+
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		/* read MC_STATUS */
+		tmp = RREG32(R_000E50_SRBM_STATUS) & 0x3F00;
+		if (!tmp)
+			return 0;
+		udelay(1);
+	}
+	return -1;
 }
 
-void r600_gpu_init(struct radeon_device *rdev)
+static void r600_mc_resume(struct radeon_device *rdev)
 {
-	/* FIXME: implement */
-}
+	u32 d1vga_control, d2vga_control;
+	u32 vga_render_control, vga_hdp_control;
+	u32 d1crtc_control, d2crtc_control;
+	u32 new_d1grph_primary, new_d1grph_secondary;
+	u32 new_d2grph_primary, new_d2grph_secondary;
+	u64 old_vram_start;
+	u32 tmp;
+	int i, j;
 
+	/* Initialize HDP */
+	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
+		WREG32((0x2c14 + j), 0x00000000);
+		WREG32((0x2c18 + j), 0x00000000);
+		WREG32((0x2c1c + j), 0x00000000);
+		WREG32((0x2c20 + j), 0x00000000);
+		WREG32((0x2c24 + j), 0x00000000);
+	}
+	WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
 
-/*
- * VRAM info
- */
-void r600_vram_get_type(struct radeon_device *rdev)
+	d1vga_control = RREG32(D1VGA_CONTROL);
+	d2vga_control = RREG32(D2VGA_CONTROL);
+	vga_render_control = RREG32(VGA_RENDER_CONTROL);
+	vga_hdp_control = RREG32(VGA_HDP_CONTROL);
+	d1crtc_control = RREG32(D1CRTC_CONTROL);
+	d2crtc_control = RREG32(D2CRTC_CONTROL);
+	old_vram_start = (u64)(RREG32(MC_VM_FB_LOCATION) & 0xFFFF) << 24;
+	new_d1grph_primary = RREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS);
+	new_d1grph_secondary = RREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS);
+	new_d1grph_primary += rdev->mc.vram_start - old_vram_start;
+	new_d1grph_secondary += rdev->mc.vram_start - old_vram_start;
+	new_d2grph_primary = RREG32(D2GRPH_PRIMARY_SURFACE_ADDRESS);
+	new_d2grph_secondary = RREG32(D2GRPH_SECONDARY_SURFACE_ADDRESS);
+	new_d2grph_primary += rdev->mc.vram_start - old_vram_start;
+	new_d2grph_secondary += rdev->mc.vram_start - old_vram_start;
+
+	/* Stop all video */
+	WREG32(D1VGA_CONTROL, 0);
+	WREG32(D2VGA_CONTROL, 0);
+	WREG32(VGA_RENDER_CONTROL, 0);
+	WREG32(D1CRTC_UPDATE_LOCK, 1);
+	WREG32(D2CRTC_UPDATE_LOCK, 1);
+	WREG32(D1CRTC_CONTROL, 0);
+	WREG32(D2CRTC_CONTROL, 0);
+	WREG32(D1CRTC_UPDATE_LOCK, 0);
+	WREG32(D2CRTC_UPDATE_LOCK, 0);
+
+	mdelay(1);
+	if (r600_mc_wait_for_idle(rdev)) {
+		printk(KERN_WARNING "[drm] MC not idle !\n");
+	}
+
+	/* Lockout access through VGA aperture*/
+	WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
+
+	/* Update configuration */
+	WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start >> 12);
+	WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, (rdev->mc.vram_end - 1) >> 12);
+	WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 0);
+	tmp = (((rdev->mc.vram_end - 1) >> 24) & 0xFFFF) << 16;
+	tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
+	WREG32(MC_VM_FB_LOCATION, tmp);
+	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
+	WREG32(HDP_NONSURFACE_INFO, (2 << 7));
+	WREG32(HDP_NONSURFACE_SIZE, (rdev->mc.mc_vram_size - 1) | 0x3FF);
+	if (rdev->flags & RADEON_IS_AGP) {
+		WREG32(MC_VM_AGP_TOP, (rdev->mc.gtt_end - 1) >> 16);
+		WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
+		WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
+	} else {
+		WREG32(MC_VM_AGP_BASE, 0);
+		WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
+		WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
+	}
+	WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS, new_d1grph_primary);
+	WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS, new_d1grph_secondary);
+	WREG32(D2GRPH_PRIMARY_SURFACE_ADDRESS, new_d2grph_primary);
+	WREG32(D2GRPH_SECONDARY_SURFACE_ADDRESS, new_d2grph_secondary);
+	WREG32(VGA_MEMORY_BASE_ADDRESS, rdev->mc.vram_start);
+
+	/* Unlock host access */
+	WREG32(VGA_HDP_CONTROL, vga_hdp_control);
+
+	mdelay(1);
+	if (r600_mc_wait_for_idle(rdev)) {
+		printk(KERN_WARNING "[drm] MC not idle !\n");
+	}
+
+	/* Restore video state */
+	WREG32(D1CRTC_UPDATE_LOCK, 1);
+	WREG32(D2CRTC_UPDATE_LOCK, 1);
+	WREG32(D1CRTC_CONTROL, d1crtc_control);
+	WREG32(D2CRTC_CONTROL, d2crtc_control);
+	WREG32(D1CRTC_UPDATE_LOCK, 0);
+	WREG32(D2CRTC_UPDATE_LOCK, 0);
+	WREG32(D1VGA_CONTROL, d1vga_control);
+	WREG32(D2VGA_CONTROL, d2vga_control);
+	WREG32(VGA_RENDER_CONTROL, vga_render_control);
+}
+
+int r600_mc_init(struct radeon_device *rdev)
 {
-	uint32_t tmp;
+	fixed20_12 a;
+	u32 tmp;
 	int chansize;
+	int r;
 
+	/* Get VRAM informations */
 	rdev->mc.vram_width = 128;
 	rdev->mc.vram_is_ddr = true;
-
-	tmp = RREG32(R600_RAMCFG);
-	if (tmp & R600_CHANSIZE_OVERRIDE) {
+	tmp = RREG32(RAMCFG);
+	if (tmp & CHANSIZE_OVERRIDE) {
 		chansize = 16;
-	} else if (tmp & R600_CHANSIZE) {
+	} else if (tmp & CHANSIZE_MASK) {
 		chansize = 64;
 	} else {
 		chansize = 32;
@@ -135,36 +352,1391 @@ void r600_vram_get_type(struct radeon_device *rdev)
 			(rdev->family == CHIP_RV635)) {
 		rdev->mc.vram_width = 2 * chansize;
 	}
+	/* Could aper size report 0 ? */
+	rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
+	rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+	/* Setup GPU memory space */
+	rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
+	rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
+	if (rdev->flags & RADEON_IS_AGP) {
+		r = radeon_agp_init(rdev);
+		if (r)
+			return r;
+		/* gtt_size is setup by radeon_agp_init */
+		rdev->mc.gtt_location = rdev->mc.agp_base;
+		tmp = 0xFFFFFFFFUL - rdev->mc.agp_base - rdev->mc.gtt_size;
+		/* Try to put vram before or after AGP because we
+		 * we want SYSTEM_APERTURE to cover both VRAM and
+		 * AGP so that GPU can catch out of VRAM/AGP access
+		 */
+		if (rdev->mc.gtt_location > rdev->mc.mc_vram_size) {
+			/* Enought place before */
+			rdev->mc.vram_location = rdev->mc.gtt_location -
+							rdev->mc.mc_vram_size;
+		} else if (tmp > rdev->mc.mc_vram_size) {
+			/* Enought place after */
+			rdev->mc.vram_location = rdev->mc.gtt_location +
+							rdev->mc.gtt_size;
+		} else {
+			/* Try to setup VRAM then AGP might not
+			 * not work on some card
+			 */
+			rdev->mc.vram_location = 0x00000000UL;
+			rdev->mc.gtt_location = rdev->mc.mc_vram_size;
+		}
+	} else {
+		if (rdev->family == CHIP_RS780 || rdev->family == CHIP_RS880) {
+			rdev->mc.vram_location = (RREG32(MC_VM_FB_LOCATION) &
+								0xFFFF) << 24;
+			rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+			tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
+			if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
+				/* Enough place after vram */
+				rdev->mc.gtt_location = tmp;
+			} else if (rdev->mc.vram_location >= rdev->mc.gtt_size) {
+				/* Enough place before vram */
+				rdev->mc.gtt_location = 0;
+			} else {
+				/* Not enough place after or before shrink
+				 * gart size
+				 */
+				if (rdev->mc.vram_location > (0xFFFFFFFFUL - tmp)) {
+					rdev->mc.gtt_location = 0;
+					rdev->mc.gtt_size = rdev->mc.vram_location;
+				} else {
+					rdev->mc.gtt_location = tmp;
+					rdev->mc.gtt_size = 0xFFFFFFFFUL - tmp;
+				}
+			}
+			rdev->mc.gtt_location = rdev->mc.mc_vram_size;
+		} else {
+			rdev->mc.vram_location = 0x00000000UL;
+			rdev->mc.gtt_location = rdev->mc.mc_vram_size;
+			rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+		}
+	}
+	rdev->mc.vram_start = rdev->mc.vram_location;
+	rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size;
+	rdev->mc.gtt_start = rdev->mc.gtt_location;
+	rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size;
+	/* FIXME: we should enforce default clock in case GPU is not in
+	 * default setup
+	 */
+	a.full = rfixed_const(100);
+	rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
+	rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
+	return 0;
 }
 
-void r600_vram_info(struct radeon_device *rdev)
+/* We doesn't check that the GPU really needs a reset we simply do the
+ * reset, it's up to the caller to determine if the GPU needs one. We
+ * might add an helper function to check that.
+ */
+int r600_gpu_soft_reset(struct radeon_device *rdev)
 {
-	r600_vram_get_type(rdev);
-	rdev->mc.real_vram_size = RREG32(R600_CONFIG_MEMSIZE);
-	rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
+	u32 grbm_busy_mask = S_008010_VC_BUSY(1) | S_008010_VGT_BUSY_NO_DMA(1) |
+				S_008010_VGT_BUSY(1) | S_008010_TA03_BUSY(1) |
+				S_008010_TC_BUSY(1) | S_008010_SX_BUSY(1) |
+				S_008010_SH_BUSY(1) | S_008010_SPI03_BUSY(1) |
+				S_008010_SMX_BUSY(1) | S_008010_SC_BUSY(1) |
+				S_008010_PA_BUSY(1) | S_008010_DB03_BUSY(1) |
+				S_008010_CR_BUSY(1) | S_008010_CB03_BUSY(1) |
+				S_008010_GUI_ACTIVE(1);
+	u32 grbm2_busy_mask = S_008014_SPI0_BUSY(1) | S_008014_SPI1_BUSY(1) |
+			S_008014_SPI2_BUSY(1) | S_008014_SPI3_BUSY(1) |
+			S_008014_TA0_BUSY(1) | S_008014_TA1_BUSY(1) |
+			S_008014_TA2_BUSY(1) | S_008014_TA3_BUSY(1) |
+			S_008014_DB0_BUSY(1) | S_008014_DB1_BUSY(1) |
+			S_008014_DB2_BUSY(1) | S_008014_DB3_BUSY(1) |
+			S_008014_CB0_BUSY(1) | S_008014_CB1_BUSY(1) |
+			S_008014_CB2_BUSY(1) | S_008014_CB3_BUSY(1);
+	u32 srbm_reset = 0;
 
-	/* Could aper size report 0 ? */
-	rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
-	rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
+	/* Disable CP parsing/prefetching */
+	WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(0xff));
+	/* Check if any of the rendering block is busy and reset it */
+	if ((RREG32(R_008010_GRBM_STATUS) & grbm_busy_mask) ||
+	    (RREG32(R_008014_GRBM_STATUS2) & grbm2_busy_mask)) {
+		WREG32(R_008020_GRBM_SOFT_RESET, S_008020_SOFT_RESET_CR(1) |
+			S_008020_SOFT_RESET_DB(1) |
+			S_008020_SOFT_RESET_CB(1) |
+			S_008020_SOFT_RESET_PA(1) |
+			S_008020_SOFT_RESET_SC(1) |
+			S_008020_SOFT_RESET_SMX(1) |
+			S_008020_SOFT_RESET_SPI(1) |
+			S_008020_SOFT_RESET_SX(1) |
+			S_008020_SOFT_RESET_SH(1) |
+			S_008020_SOFT_RESET_TC(1) |
+			S_008020_SOFT_RESET_TA(1) |
+			S_008020_SOFT_RESET_VC(1) |
+			S_008020_SOFT_RESET_VGT(1));
+		(void)RREG32(R_008020_GRBM_SOFT_RESET);
+		udelay(50);
+		WREG32(R_008020_GRBM_SOFT_RESET, 0);
+		(void)RREG32(R_008020_GRBM_SOFT_RESET);
+	}
+	/* Reset CP (we always reset CP) */
+	WREG32(R_008020_GRBM_SOFT_RESET, S_008020_SOFT_RESET_CP(1));
+	(void)RREG32(R_008020_GRBM_SOFT_RESET);
+	udelay(50);
+	WREG32(R_008020_GRBM_SOFT_RESET, 0);
+	(void)RREG32(R_008020_GRBM_SOFT_RESET);
+	/* Reset others GPU block if necessary */
+	if (G_000E50_RLC_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_RLC(1);
+	if (G_000E50_GRBM_RQ_PENDING(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_GRBM(1);
+	if (G_000E50_HI_RQ_PENDING(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_IH(1);
+	if (G_000E50_VMC_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_VMC(1);
+	if (G_000E50_MCB_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_MC(1);
+	if (G_000E50_MCDZ_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_MC(1);
+	if (G_000E50_MCDY_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_MC(1);
+	if (G_000E50_MCDX_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_MC(1);
+	if (G_000E50_MCDW_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_MC(1);
+	if (G_000E50_RLC_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_RLC(1);
+	if (G_000E50_SEM_BUSY(RREG32(R_000E50_SRBM_STATUS)))
+		srbm_reset |= S_000E60_SOFT_RESET_SEM(1);
+	WREG32(R_000E60_SRBM_SOFT_RESET, srbm_reset);
+	(void)RREG32(R_000E60_SRBM_SOFT_RESET);
+	udelay(50);
+	WREG32(R_000E60_SRBM_SOFT_RESET, 0);
+	(void)RREG32(R_000E60_SRBM_SOFT_RESET);
+	/* Wait a little for things to settle down */
+	udelay(50);
+	return 0;
+}
+
+int r600_gpu_reset(struct radeon_device *rdev)
+{
+	return r600_gpu_soft_reset(rdev);
+}
+
+static u32 r600_get_tile_pipe_to_backend_map(u32 num_tile_pipes,
+					     u32 num_backends,
+					     u32 backend_disable_mask)
+{
+	u32 backend_map = 0;
+	u32 enabled_backends_mask;
+	u32 enabled_backends_count;
+	u32 cur_pipe;
+	u32 swizzle_pipe[R6XX_MAX_PIPES];
+	u32 cur_backend;
+	u32 i;
+
+	if (num_tile_pipes > R6XX_MAX_PIPES)
+		num_tile_pipes = R6XX_MAX_PIPES;
+	if (num_tile_pipes < 1)
+		num_tile_pipes = 1;
+	if (num_backends > R6XX_MAX_BACKENDS)
+		num_backends = R6XX_MAX_BACKENDS;
+	if (num_backends < 1)
+		num_backends = 1;
+
+	enabled_backends_mask = 0;
+	enabled_backends_count = 0;
+	for (i = 0; i < R6XX_MAX_BACKENDS; ++i) {
+		if (((backend_disable_mask >> i) & 1) == 0) {
+			enabled_backends_mask |= (1 << i);
+			++enabled_backends_count;
+		}
+		if (enabled_backends_count == num_backends)
+			break;
+	}
+
+	if (enabled_backends_count == 0) {
+		enabled_backends_mask = 1;
+		enabled_backends_count = 1;
+	}
+
+	if (enabled_backends_count != num_backends)
+		num_backends = enabled_backends_count;
+
+	memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * R6XX_MAX_PIPES);
+	switch (num_tile_pipes) {
+	case 1:
+		swizzle_pipe[0] = 0;
+		break;
+	case 2:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 1;
+		break;
+	case 3:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 1;
+		swizzle_pipe[2] = 2;
+		break;
+	case 4:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 1;
+		swizzle_pipe[2] = 2;
+		swizzle_pipe[3] = 3;
+		break;
+	case 5:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 1;
+		swizzle_pipe[2] = 2;
+		swizzle_pipe[3] = 3;
+		swizzle_pipe[4] = 4;
+		break;
+	case 6:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 2;
+		swizzle_pipe[2] = 4;
+		swizzle_pipe[3] = 5;
+		swizzle_pipe[4] = 1;
+		swizzle_pipe[5] = 3;
+		break;
+	case 7:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 2;
+		swizzle_pipe[2] = 4;
+		swizzle_pipe[3] = 6;
+		swizzle_pipe[4] = 1;
+		swizzle_pipe[5] = 3;
+		swizzle_pipe[6] = 5;
+		break;
+	case 8:
+		swizzle_pipe[0] = 0;
+		swizzle_pipe[1] = 2;
+		swizzle_pipe[2] = 4;
+		swizzle_pipe[3] = 6;
+		swizzle_pipe[4] = 1;
+		swizzle_pipe[5] = 3;
+		swizzle_pipe[6] = 5;
+		swizzle_pipe[7] = 7;
+		break;
+	}
+
+	cur_backend = 0;
+	for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
+		while (((1 << cur_backend) & enabled_backends_mask) == 0)
+			cur_backend = (cur_backend + 1) % R6XX_MAX_BACKENDS;
+
+		backend_map |= (u32)(((cur_backend & 3) << (swizzle_pipe[cur_pipe] * 2)));
+
+		cur_backend = (cur_backend + 1) % R6XX_MAX_BACKENDS;
+	}
+
+	return backend_map;
+}
+
+int r600_count_pipe_bits(uint32_t val)
+{
+	int i, ret = 0;
+
+	for (i = 0; i < 32; i++) {
+		ret += val & 1;
+		val >>= 1;
+	}
+	return ret;
 }
 
+void r600_gpu_init(struct radeon_device *rdev)
+{
+	u32 tiling_config;
+	u32 ramcfg;
+	u32 tmp;
+	int i, j;
+	u32 sq_config;
+	u32 sq_gpr_resource_mgmt_1 = 0;
+	u32 sq_gpr_resource_mgmt_2 = 0;
+	u32 sq_thread_resource_mgmt = 0;
+	u32 sq_stack_resource_mgmt_1 = 0;
+	u32 sq_stack_resource_mgmt_2 = 0;
+
+	/* FIXME: implement */
+	switch (rdev->family) {
+	case CHIP_R600:
+		rdev->config.r600.max_pipes = 4;
+		rdev->config.r600.max_tile_pipes = 8;
+		rdev->config.r600.max_simds = 4;
+		rdev->config.r600.max_backends = 4;
+		rdev->config.r600.max_gprs = 256;
+		rdev->config.r600.max_threads = 192;
+		rdev->config.r600.max_stack_entries = 256;
+		rdev->config.r600.max_hw_contexts = 8;
+		rdev->config.r600.max_gs_threads = 16;
+		rdev->config.r600.sx_max_export_size = 128;
+		rdev->config.r600.sx_max_export_pos_size = 16;
+		rdev->config.r600.sx_max_export_smx_size = 128;
+		rdev->config.r600.sq_num_cf_insts = 2;
+		break;
+	case CHIP_RV630:
+	case CHIP_RV635:
+		rdev->config.r600.max_pipes = 2;
+		rdev->config.r600.max_tile_pipes = 2;
+		rdev->config.r600.max_simds = 3;
+		rdev->config.r600.max_backends = 1;
+		rdev->config.r600.max_gprs = 128;
+		rdev->config.r600.max_threads = 192;
+		rdev->config.r600.max_stack_entries = 128;
+		rdev->config.r600.max_hw_contexts = 8;
+		rdev->config.r600.max_gs_threads = 4;
+		rdev->config.r600.sx_max_export_size = 128;
+		rdev->config.r600.sx_max_export_pos_size = 16;
+		rdev->config.r600.sx_max_export_smx_size = 128;
+		rdev->config.r600.sq_num_cf_insts = 2;
+		break;
+	case CHIP_RV610:
+	case CHIP_RV620:
+	case CHIP_RS780:
+	case CHIP_RS880:
+		rdev->config.r600.max_pipes = 1;
+		rdev->config.r600.max_tile_pipes = 1;
+		rdev->config.r600.max_simds = 2;
+		rdev->config.r600.max_backends = 1;
+		rdev->config.r600.max_gprs = 128;
+		rdev->config.r600.max_threads = 192;
+		rdev->config.r600.max_stack_entries = 128;
+		rdev->config.r600.max_hw_contexts = 4;
+		rdev->config.r600.max_gs_threads = 4;
+		rdev->config.r600.sx_max_export_size = 128;
+		rdev->config.r600.sx_max_export_pos_size = 16;
+		rdev->config.r600.sx_max_export_smx_size = 128;
+		rdev->config.r600.sq_num_cf_insts = 1;
+		break;
+	case CHIP_RV670:
+		rdev->config.r600.max_pipes = 4;
+		rdev->config.r600.max_tile_pipes = 4;
+		rdev->config.r600.max_simds = 4;
+		rdev->config.r600.max_backends = 4;
+		rdev->config.r600.max_gprs = 192;
+		rdev->config.r600.max_threads = 192;
+		rdev->config.r600.max_stack_entries = 256;
+		rdev->config.r600.max_hw_contexts = 8;
+		rdev->config.r600.max_gs_threads = 16;
+		rdev->config.r600.sx_max_export_size = 128;
+		rdev->config.r600.sx_max_export_pos_size = 16;
+		rdev->config.r600.sx_max_export_smx_size = 128;
+		rdev->config.r600.sq_num_cf_insts = 2;
+		break;
+	default:
+		break;
+	}
+
+	/* Initialize HDP */
+	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
+		WREG32((0x2c14 + j), 0x00000000);
+		WREG32((0x2c18 + j), 0x00000000);
+		WREG32((0x2c1c + j), 0x00000000);
+		WREG32((0x2c20 + j), 0x00000000);
+		WREG32((0x2c24 + j), 0x00000000);
+	}
+
+	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
+
+	/* Setup tiling */
+	tiling_config = 0;
+	ramcfg = RREG32(RAMCFG);
+	switch (rdev->config.r600.max_tile_pipes) {
+	case 1:
+		tiling_config |= PIPE_TILING(0);
+		break;
+	case 2:
+		tiling_config |= PIPE_TILING(1);
+		break;
+	case 4:
+		tiling_config |= PIPE_TILING(2);
+		break;
+	case 8:
+		tiling_config |= PIPE_TILING(3);
+		break;
+	default:
+		break;
+	}
+	tiling_config |= BANK_TILING((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
+	tiling_config |= GROUP_SIZE(0);
+	tmp = (ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT;
+	if (tmp > 3) {
+		tiling_config |= ROW_TILING(3);
+		tiling_config |= SAMPLE_SPLIT(3);
+	} else {
+		tiling_config |= ROW_TILING(tmp);
+		tiling_config |= SAMPLE_SPLIT(tmp);
+	}
+	tiling_config |= BANK_SWAPS(1);
+	tmp = r600_get_tile_pipe_to_backend_map(rdev->config.r600.max_tile_pipes,
+						rdev->config.r600.max_backends,
+						(0xff << rdev->config.r600.max_backends) & 0xff);
+	tiling_config |= BACKEND_MAP(tmp);
+	WREG32(GB_TILING_CONFIG, tiling_config);
+	WREG32(DCP_TILING_CONFIG, tiling_config & 0xffff);
+	WREG32(HDP_TILING_CONFIG, tiling_config & 0xffff);
+
+	tmp = BACKEND_DISABLE((R6XX_MAX_BACKENDS_MASK << rdev->config.r600.max_backends) & R6XX_MAX_BACKENDS_MASK);
+	WREG32(CC_RB_BACKEND_DISABLE, tmp);
+
+	/* Setup pipes */
+	tmp = INACTIVE_QD_PIPES((R6XX_MAX_PIPES_MASK << rdev->config.r600.max_pipes) & R6XX_MAX_PIPES_MASK);
+	tmp |= INACTIVE_SIMDS((R6XX_MAX_SIMDS_MASK << rdev->config.r600.max_simds) & R6XX_MAX_SIMDS_MASK);
+	WREG32(CC_GC_SHADER_PIPE_CONFIG, tmp);
+	WREG32(GC_USER_SHADER_PIPE_CONFIG, tmp);
+
+	tmp = R6XX_MAX_BACKENDS - r600_count_pipe_bits(tmp & INACTIVE_QD_PIPES_MASK);
+	WREG32(VGT_OUT_DEALLOC_CNTL, (tmp * 4) & DEALLOC_DIST_MASK);
+	WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, ((tmp * 4) - 2) & VTX_REUSE_DEPTH_MASK);
+
+	/* Setup some CP states */
+	WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) | ROQ_IB2_START(0x2b)));
+	WREG32(CP_MEQ_THRESHOLDS, (MEQ_END(0x40) | ROQ_END(0x40)));
+
+	WREG32(TA_CNTL_AUX, (DISABLE_CUBE_ANISO | SYNC_GRADIENT |
+			     SYNC_WALKER | SYNC_ALIGNER));
+	/* Setup various GPU states */
+	if (rdev->family == CHIP_RV670)
+		WREG32(ARB_GDEC_RD_CNTL, 0x00000021);
+
+	tmp = RREG32(SX_DEBUG_1);
+	tmp |= SMX_EVENT_RELEASE;
+	if ((rdev->family > CHIP_R600))
+		tmp |= ENABLE_NEW_SMX_ADDRESS;
+	WREG32(SX_DEBUG_1, tmp);
+
+	if (((rdev->family) == CHIP_R600) ||
+	    ((rdev->family) == CHIP_RV630) ||
+	    ((rdev->family) == CHIP_RV610) ||
+	    ((rdev->family) == CHIP_RV620) ||
+	    ((rdev->family) == CHIP_RS780)) {
+		WREG32(DB_DEBUG, PREZ_MUST_WAIT_FOR_POSTZ_DONE);
+	} else {
+		WREG32(DB_DEBUG, 0);
+	}
+	WREG32(DB_WATERMARKS, (DEPTH_FREE(4) | DEPTH_CACHELINE_FREE(16) |
+			       DEPTH_FLUSH(16) | DEPTH_PENDING_FREE(4)));
+
+	WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
+	WREG32(VGT_NUM_INSTANCES, 0);
+
+	WREG32(SPI_CONFIG_CNTL, GPR_WRITE_PRIORITY(0));
+	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(0));
+
+	tmp = RREG32(SQ_MS_FIFO_SIZES);
+	if (((rdev->family) == CHIP_RV610) ||
+	    ((rdev->family) == CHIP_RV620) ||
+	    ((rdev->family) == CHIP_RS780)) {
+		tmp = (CACHE_FIFO_SIZE(0xa) |
+		       FETCH_FIFO_HIWATER(0xa) |
+		       DONE_FIFO_HIWATER(0xe0) |
+		       ALU_UPDATE_FIFO_HIWATER(0x8));
+	} else if (((rdev->family) == CHIP_R600) ||
+		   ((rdev->family) == CHIP_RV630)) {
+		tmp &= ~DONE_FIFO_HIWATER(0xff);
+		tmp |= DONE_FIFO_HIWATER(0x4);
+	}
+	WREG32(SQ_MS_FIFO_SIZES, tmp);
+
+	/* SQ_CONFIG, SQ_GPR_RESOURCE_MGMT, SQ_THREAD_RESOURCE_MGMT, SQ_STACK_RESOURCE_MGMT
+	 * should be adjusted as needed by the 2D/3D drivers.  This just sets default values
+	 */
+	sq_config = RREG32(SQ_CONFIG);
+	sq_config &= ~(PS_PRIO(3) |
+		       VS_PRIO(3) |
+		       GS_PRIO(3) |
+		       ES_PRIO(3));
+	sq_config |= (DX9_CONSTS |
+		      VC_ENABLE |
+		      PS_PRIO(0) |
+		      VS_PRIO(1) |
+		      GS_PRIO(2) |
+		      ES_PRIO(3));
+
+	if ((rdev->family) == CHIP_R600) {
+		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(124) |
+					  NUM_VS_GPRS(124) |
+					  NUM_CLAUSE_TEMP_GPRS(4));
+		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(0) |
+					  NUM_ES_GPRS(0));
+		sq_thread_resource_mgmt = (NUM_PS_THREADS(136) |
+					   NUM_VS_THREADS(48) |
+					   NUM_GS_THREADS(4) |
+					   NUM_ES_THREADS(4));
+		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(128) |
+					    NUM_VS_STACK_ENTRIES(128));
+		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(0) |
+					    NUM_ES_STACK_ENTRIES(0));
+	} else if (((rdev->family) == CHIP_RV610) ||
+		   ((rdev->family) == CHIP_RV620) ||
+		   ((rdev->family) == CHIP_RS780)) {
+		/* no vertex cache */
+		sq_config &= ~VC_ENABLE;
+
+		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
+					  NUM_VS_GPRS(44) |
+					  NUM_CLAUSE_TEMP_GPRS(2));
+		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
+					  NUM_ES_GPRS(17));
+		sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
+					   NUM_VS_THREADS(78) |
+					   NUM_GS_THREADS(4) |
+					   NUM_ES_THREADS(31));
+		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
+					    NUM_VS_STACK_ENTRIES(40));
+		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
+					    NUM_ES_STACK_ENTRIES(16));
+	} else if (((rdev->family) == CHIP_RV630) ||
+		   ((rdev->family) == CHIP_RV635)) {
+		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
+					  NUM_VS_GPRS(44) |
+					  NUM_CLAUSE_TEMP_GPRS(2));
+		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(18) |
+					  NUM_ES_GPRS(18));
+		sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
+					   NUM_VS_THREADS(78) |
+					   NUM_GS_THREADS(4) |
+					   NUM_ES_THREADS(31));
+		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
+					    NUM_VS_STACK_ENTRIES(40));
+		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
+					    NUM_ES_STACK_ENTRIES(16));
+	} else if ((rdev->family) == CHIP_RV670) {
+		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
+					  NUM_VS_GPRS(44) |
+					  NUM_CLAUSE_TEMP_GPRS(2));
+		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
+					  NUM_ES_GPRS(17));
+		sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
+					   NUM_VS_THREADS(78) |
+					   NUM_GS_THREADS(4) |
+					   NUM_ES_THREADS(31));
+		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(64) |
+					    NUM_VS_STACK_ENTRIES(64));
+		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(64) |
+					    NUM_ES_STACK_ENTRIES(64));
+	}
+
+	WREG32(SQ_CONFIG, sq_config);
+	WREG32(SQ_GPR_RESOURCE_MGMT_1,  sq_gpr_resource_mgmt_1);
+	WREG32(SQ_GPR_RESOURCE_MGMT_2,  sq_gpr_resource_mgmt_2);
+	WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
+	WREG32(SQ_STACK_RESOURCE_MGMT_1, sq_stack_resource_mgmt_1);
+	WREG32(SQ_STACK_RESOURCE_MGMT_2, sq_stack_resource_mgmt_2);
+
+	if (((rdev->family) == CHIP_RV610) ||
+	    ((rdev->family) == CHIP_RV620) ||
+	    ((rdev->family) == CHIP_RS780)) {
+		WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(TC_ONLY));
+	} else {
+		WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC));
+	}
+
+	/* More default values. 2D/3D driver should adjust as needed */
+	WREG32(PA_SC_AA_SAMPLE_LOCS_2S, (S0_X(0xc) | S0_Y(0x4) |
+					 S1_X(0x4) | S1_Y(0xc)));
+	WREG32(PA_SC_AA_SAMPLE_LOCS_4S, (S0_X(0xe) | S0_Y(0xe) |
+					 S1_X(0x2) | S1_Y(0x2) |
+					 S2_X(0xa) | S2_Y(0x6) |
+					 S3_X(0x6) | S3_Y(0xa)));
+	WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD0, (S0_X(0xe) | S0_Y(0xb) |
+					     S1_X(0x4) | S1_Y(0xc) |
+					     S2_X(0x1) | S2_Y(0x6) |
+					     S3_X(0xa) | S3_Y(0xe)));
+	WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD1, (S4_X(0x6) | S4_Y(0x1) |
+					     S5_X(0x0) | S5_Y(0x0) |
+					     S6_X(0xb) | S6_Y(0x4) |
+					     S7_X(0x7) | S7_Y(0x8)));
+
+	WREG32(VGT_STRMOUT_EN, 0);
+	tmp = rdev->config.r600.max_pipes * 16;
+	switch (rdev->family) {
+	case CHIP_RV610:
+	case CHIP_RS780:
+	case CHIP_RV620:
+		tmp += 32;
+		break;
+	case CHIP_RV670:
+		tmp += 128;
+		break;
+	default:
+		break;
+	}
+	if (tmp > 256) {
+		tmp = 256;
+	}
+	WREG32(VGT_ES_PER_GS, 128);
+	WREG32(VGT_GS_PER_ES, tmp);
+	WREG32(VGT_GS_PER_VS, 2);
+	WREG32(VGT_GS_VERTEX_REUSE, 16);
+
+	/* more default values. 2D/3D driver should adjust as needed */
+	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
+	WREG32(VGT_STRMOUT_EN, 0);
+	WREG32(SX_MISC, 0);
+	WREG32(PA_SC_MODE_CNTL, 0);
+	WREG32(PA_SC_AA_CONFIG, 0);
+	WREG32(PA_SC_LINE_STIPPLE, 0);
+	WREG32(SPI_INPUT_Z, 0);
+	WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
+	WREG32(CB_COLOR7_FRAG, 0);
+
+	/* Clear render buffer base addresses */
+	WREG32(CB_COLOR0_BASE, 0);
+	WREG32(CB_COLOR1_BASE, 0);
+	WREG32(CB_COLOR2_BASE, 0);
+	WREG32(CB_COLOR3_BASE, 0);
+	WREG32(CB_COLOR4_BASE, 0);
+	WREG32(CB_COLOR5_BASE, 0);
+	WREG32(CB_COLOR6_BASE, 0);
+	WREG32(CB_COLOR7_BASE, 0);
+	WREG32(CB_COLOR7_FRAG, 0);
+
+	switch (rdev->family) {
+	case CHIP_RV610:
+	case CHIP_RS780:
+	case CHIP_RV620:
+		tmp = TC_L2_SIZE(8);
+		break;
+	case CHIP_RV630:
+	case CHIP_RV635:
+		tmp = TC_L2_SIZE(4);
+		break;
+	case CHIP_R600:
+		tmp = TC_L2_SIZE(0) | L2_DISABLE_LATE_HIT;
+		break;
+	default:
+		tmp = TC_L2_SIZE(0);
+		break;
+	}
+	WREG32(TC_CNTL, tmp);
+
+	tmp = RREG32(HDP_HOST_PATH_CNTL);
+	WREG32(HDP_HOST_PATH_CNTL, tmp);
+
+	tmp = RREG32(ARB_POP);
+	tmp |= ENABLE_TC128;
+	WREG32(ARB_POP, tmp);
+
+	WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
+	WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA |
+			       NUM_CLIP_SEQ(3)));
+	WREG32(PA_SC_ENHANCE, FORCE_EOV_MAX_CLK_CNT(4095));
+}
+
+
 /*
  * Indirect registers accessor
  */
-uint32_t r600_pciep_rreg(struct radeon_device *rdev, uint32_t reg)
+u32 r600_pciep_rreg(struct radeon_device *rdev, u32 reg)
+{
+	u32 r;
+
+	WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
+	(void)RREG32(PCIE_PORT_INDEX);
+	r = RREG32(PCIE_PORT_DATA);
+	return r;
+}
+
+void r600_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v)
+{
+	WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
+	(void)RREG32(PCIE_PORT_INDEX);
+	WREG32(PCIE_PORT_DATA, (v));
+	(void)RREG32(PCIE_PORT_DATA);
+}
+
+
+/*
+ * CP & Ring
+ */
+void r600_cp_stop(struct radeon_device *rdev)
+{
+	WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
+}
+
+int r600_cp_init_microcode(struct radeon_device *rdev)
+{
+	struct platform_device *pdev;
+	const char *chip_name;
+	size_t pfp_req_size, me_req_size;
+	char fw_name[30];
+	int err;
+
+	DRM_DEBUG("\n");
+
+	pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
+	err = IS_ERR(pdev);
+	if (err) {
+		printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
+		return -EINVAL;
+	}
+
+	switch (rdev->family) {
+	case CHIP_R600: chip_name = "R600"; break;
+	case CHIP_RV610: chip_name = "RV610"; break;
+	case CHIP_RV630: chip_name = "RV630"; break;
+	case CHIP_RV620: chip_name = "RV620"; break;
+	case CHIP_RV635: chip_name = "RV635"; break;
+	case CHIP_RV670: chip_name = "RV670"; break;
+	case CHIP_RS780:
+	case CHIP_RS880: chip_name = "RS780"; break;
+	case CHIP_RV770: chip_name = "RV770"; break;
+	case CHIP_RV730:
+	case CHIP_RV740: chip_name = "RV730"; break;
+	case CHIP_RV710: chip_name = "RV710"; break;
+	default: BUG();
+	}
+
+	if (rdev->family >= CHIP_RV770) {
+		pfp_req_size = R700_PFP_UCODE_SIZE * 4;
+		me_req_size = R700_PM4_UCODE_SIZE * 4;
+	} else {
+		pfp_req_size = PFP_UCODE_SIZE * 4;
+		me_req_size = PM4_UCODE_SIZE * 12;
+	}
+
+	DRM_INFO("Loading %s CP Microcode\n", chip_name);
+
+	snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
+	err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
+	if (err)
+		goto out;
+	if (rdev->pfp_fw->size != pfp_req_size) {
+		printk(KERN_ERR
+		       "r600_cp: Bogus length %zu in firmware \"%s\"\n",
+		       rdev->pfp_fw->size, fw_name);
+		err = -EINVAL;
+		goto out;
+	}
+
+	snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
+	err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
+	if (err)
+		goto out;
+	if (rdev->me_fw->size != me_req_size) {
+		printk(KERN_ERR
+		       "r600_cp: Bogus length %zu in firmware \"%s\"\n",
+		       rdev->me_fw->size, fw_name);
+		err = -EINVAL;
+	}
+out:
+	platform_device_unregister(pdev);
+
+	if (err) {
+		if (err != -EINVAL)
+			printk(KERN_ERR
+			       "r600_cp: Failed to load firmware \"%s\"\n",
+			       fw_name);
+		release_firmware(rdev->pfp_fw);
+		rdev->pfp_fw = NULL;
+		release_firmware(rdev->me_fw);
+		rdev->me_fw = NULL;
+	}
+	return err;
+}
+
+static int r600_cp_load_microcode(struct radeon_device *rdev)
+{
+	const __be32 *fw_data;
+	int i;
+
+	if (!rdev->me_fw || !rdev->pfp_fw)
+		return -EINVAL;
+
+	r600_cp_stop(rdev);
+
+	WREG32(CP_RB_CNTL, RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));
+
+	/* Reset cp */
+	WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
+	RREG32(GRBM_SOFT_RESET);
+	mdelay(15);
+	WREG32(GRBM_SOFT_RESET, 0);
+
+	WREG32(CP_ME_RAM_WADDR, 0);
+
+	fw_data = (const __be32 *)rdev->me_fw->data;
+	WREG32(CP_ME_RAM_WADDR, 0);
+	for (i = 0; i < PM4_UCODE_SIZE * 3; i++)
+		WREG32(CP_ME_RAM_DATA,
+		       be32_to_cpup(fw_data++));
+
+	fw_data = (const __be32 *)rdev->pfp_fw->data;
+	WREG32(CP_PFP_UCODE_ADDR, 0);
+	for (i = 0; i < PFP_UCODE_SIZE; i++)
+		WREG32(CP_PFP_UCODE_DATA,
+		       be32_to_cpup(fw_data++));
+
+	WREG32(CP_PFP_UCODE_ADDR, 0);
+	WREG32(CP_ME_RAM_WADDR, 0);
+	WREG32(CP_ME_RAM_RADDR, 0);
+	return 0;
+}
+
+int r600_cp_start(struct radeon_device *rdev)
+{
+	int r;
+	uint32_t cp_me;
+
+	r = radeon_ring_lock(rdev, 7);
+	if (r) {
+		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
+		return r;
+	}
+	radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
+	radeon_ring_write(rdev, 0x1);
+	if (rdev->family < CHIP_RV770) {
+		radeon_ring_write(rdev, 0x3);
+		radeon_ring_write(rdev, rdev->config.r600.max_hw_contexts - 1);
+	} else {
+		radeon_ring_write(rdev, 0x0);
+		radeon_ring_write(rdev, rdev->config.rv770.max_hw_contexts - 1);
+	}
+	radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
+	radeon_ring_write(rdev, 0);
+	radeon_ring_write(rdev, 0);
+	radeon_ring_unlock_commit(rdev);
+
+	cp_me = 0xff;
+	WREG32(R_0086D8_CP_ME_CNTL, cp_me);
+	return 0;
+}
+
+int r600_cp_resume(struct radeon_device *rdev)
+{
+	u32 tmp;
+	u32 rb_bufsz;
+	int r;
+
+	/* Reset cp */
+	WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
+	RREG32(GRBM_SOFT_RESET);
+	mdelay(15);
+	WREG32(GRBM_SOFT_RESET, 0);
+
+	/* Set ring buffer size */
+	rb_bufsz = drm_order(rdev->cp.ring_size / 8);
+#ifdef __BIG_ENDIAN
+	WREG32(CP_RB_CNTL, BUF_SWAP_32BIT | RB_NO_UPDATE |
+		(drm_order(4096/8) << 8) | rb_bufsz);
+#else
+	WREG32(CP_RB_CNTL, RB_NO_UPDATE | (drm_order(4096/8) << 8) | rb_bufsz);
+#endif
+	WREG32(CP_SEM_WAIT_TIMER, 0x4);
+
+	/* Set the write pointer delay */
+	WREG32(CP_RB_WPTR_DELAY, 0);
+
+	/* Initialize the ring buffer's read and write pointers */
+	tmp = RREG32(CP_RB_CNTL);
+	WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
+	WREG32(CP_RB_RPTR_WR, 0);
+	WREG32(CP_RB_WPTR, 0);
+	WREG32(CP_RB_RPTR_ADDR, rdev->cp.gpu_addr & 0xFFFFFFFF);
+	WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->cp.gpu_addr));
+	mdelay(1);
+	WREG32(CP_RB_CNTL, tmp);
+
+	WREG32(CP_RB_BASE, rdev->cp.gpu_addr >> 8);
+	WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
+
+	rdev->cp.rptr = RREG32(CP_RB_RPTR);
+	rdev->cp.wptr = RREG32(CP_RB_WPTR);
+
+	r600_cp_start(rdev);
+	rdev->cp.ready = true;
+	r = radeon_ring_test(rdev);
+	if (r) {
+		rdev->cp.ready = false;
+		return r;
+	}
+	return 0;
+}
+
+void r600_cp_commit(struct radeon_device *rdev)
+{
+	WREG32(CP_RB_WPTR, rdev->cp.wptr);
+	(void)RREG32(CP_RB_WPTR);
+}
+
+void r600_ring_init(struct radeon_device *rdev, unsigned ring_size)
+{
+	u32 rb_bufsz;
+
+	/* Align ring size */
+	rb_bufsz = drm_order(ring_size / 8);
+	ring_size = (1 << (rb_bufsz + 1)) * 4;
+	rdev->cp.ring_size = ring_size;
+	rdev->cp.align_mask = 16 - 1;
+}
+
+
+/*
+ * GPU scratch registers helpers function.
+ */
+void r600_scratch_init(struct radeon_device *rdev)
+{
+	int i;
+
+	rdev->scratch.num_reg = 7;
+	for (i = 0; i < rdev->scratch.num_reg; i++) {
+		rdev->scratch.free[i] = true;
+		rdev->scratch.reg[i] = SCRATCH_REG0 + (i * 4);
+	}
+}
+
+int r600_ring_test(struct radeon_device *rdev)
+{
+	uint32_t scratch;
+	uint32_t tmp = 0;
+	unsigned i;
+	int r;
+
+	r = radeon_scratch_get(rdev, &scratch);
+	if (r) {
+		DRM_ERROR("radeon: cp failed to get scratch reg (%d).\n", r);
+		return r;
+	}
+	WREG32(scratch, 0xCAFEDEAD);
+	r = radeon_ring_lock(rdev, 3);
+	if (r) {
+		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
+		radeon_scratch_free(rdev, scratch);
+		return r;
+	}
+	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(rdev, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
+	radeon_ring_write(rdev, 0xDEADBEEF);
+	radeon_ring_unlock_commit(rdev);
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		tmp = RREG32(scratch);
+		if (tmp == 0xDEADBEEF)
+			break;
+		DRM_UDELAY(1);
+	}
+	if (i < rdev->usec_timeout) {
+		DRM_INFO("ring test succeeded in %d usecs\n", i);
+	} else {
+		DRM_ERROR("radeon: ring test failed (scratch(0x%04X)=0x%08X)\n",
+			  scratch, tmp);
+		r = -EINVAL;
+	}
+	radeon_scratch_free(rdev, scratch);
+	return r;
+}
+
+/*
+ * Writeback
+ */
+int r600_wb_init(struct radeon_device *rdev)
+{
+	int r;
+
+	if (rdev->wb.wb_obj == NULL) {
+		r = radeon_object_create(rdev, NULL, 4096,
+					 true,
+					 RADEON_GEM_DOMAIN_GTT,
+					 false, &rdev->wb.wb_obj);
+		if (r) {
+			DRM_ERROR("radeon: failed to create WB buffer (%d).\n", r);
+			return r;
+		}
+		r = radeon_object_pin(rdev->wb.wb_obj,
+				      RADEON_GEM_DOMAIN_GTT,
+				      &rdev->wb.gpu_addr);
+		if (r) {
+			DRM_ERROR("radeon: failed to pin WB buffer (%d).\n", r);
+			return r;
+		}
+		r = radeon_object_kmap(rdev->wb.wb_obj, (void **)&rdev->wb.wb);
+		if (r) {
+			DRM_ERROR("radeon: failed to map WB buffer (%d).\n", r);
+			return r;
+		}
+	}
+	WREG32(SCRATCH_ADDR, (rdev->wb.gpu_addr >> 8) & 0xFFFFFFFF);
+	WREG32(CP_RB_RPTR_ADDR, (rdev->wb.gpu_addr + 1024) & 0xFFFFFFFC);
+	WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + 1024) & 0xFF);
+	WREG32(SCRATCH_UMSK, 0xff);
+	return 0;
+}
+
+void r600_wb_fini(struct radeon_device *rdev)
+{
+	if (rdev->wb.wb_obj) {
+		radeon_object_kunmap(rdev->wb.wb_obj);
+		radeon_object_unpin(rdev->wb.wb_obj);
+		radeon_object_unref(&rdev->wb.wb_obj);
+		rdev->wb.wb = NULL;
+		rdev->wb.wb_obj = NULL;
+	}
+}
+
+
+/*
+ * CS
+ */
+void r600_fence_ring_emit(struct radeon_device *rdev,
+			  struct radeon_fence *fence)
+{
+	/* Emit fence sequence & fire IRQ */
+	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(rdev, ((rdev->fence_drv.scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
+	radeon_ring_write(rdev, fence->seq);
+}
+
+int r600_copy_dma(struct radeon_device *rdev,
+		  uint64_t src_offset,
+		  uint64_t dst_offset,
+		  unsigned num_pages,
+		  struct radeon_fence *fence)
+{
+	/* FIXME: implement */
+	return 0;
+}
+
+int r600_copy_blit(struct radeon_device *rdev,
+		   uint64_t src_offset, uint64_t dst_offset,
+		   unsigned num_pages, struct radeon_fence *fence)
+{
+	r600_blit_prepare_copy(rdev, num_pages * 4096);
+	r600_kms_blit_copy(rdev, src_offset, dst_offset, num_pages * 4096);
+	r600_blit_done_copy(rdev, fence);
+	return 0;
+}
+
+int r600_irq_process(struct radeon_device *rdev)
+{
+	/* FIXME: implement */
+	return 0;
+}
+
+int r600_irq_set(struct radeon_device *rdev)
+{
+	/* FIXME: implement */
+	return 0;
+}
+
+int r600_set_surface_reg(struct radeon_device *rdev, int reg,
+			 uint32_t tiling_flags, uint32_t pitch,
+			 uint32_t offset, uint32_t obj_size)
+{
+	/* FIXME: implement */
+	return 0;
+}
+
+void r600_clear_surface_reg(struct radeon_device *rdev, int reg)
+{
+	/* FIXME: implement */
+}
+
+
+bool r600_card_posted(struct radeon_device *rdev)
+{
+	uint32_t reg;
+
+	/* first check CRTCs */
+	reg = RREG32(D1CRTC_CONTROL) |
+		RREG32(D2CRTC_CONTROL);
+	if (reg & CRTC_EN)
+		return true;
+
+	/* then check MEM_SIZE, in case the crtcs are off */
+	if (RREG32(CONFIG_MEMSIZE))
+		return true;
+
+	return false;
+}
+
+int r600_resume(struct radeon_device *rdev)
+{
+	int r;
+
+	r600_gpu_reset(rdev);
+	r600_mc_resume(rdev);
+	r = r600_pcie_gart_enable(rdev);
+	if (r)
+		return r;
+	r600_gpu_init(rdev);
+	r = radeon_ring_init(rdev, rdev->cp.ring_size);
+	if (r)
+		return r;
+	r = r600_cp_load_microcode(rdev);
+	if (r)
+		return r;
+	r = r600_cp_resume(rdev);
+	if (r)
+		return r;
+	r = r600_wb_init(rdev);
+	if (r)
+		return r;
+	return 0;
+}
+
+int r600_suspend(struct radeon_device *rdev)
+{
+	/* FIXME: we should wait for ring to be empty */
+	r600_cp_stop(rdev);
+	return 0;
+}
+
+/* Plan is to move initialization in that function and use
+ * helper function so that radeon_device_init pretty much
+ * do nothing more than calling asic specific function. This
+ * should also allow to remove a bunch of callback function
+ * like vram_info.
+ */
+int r600_init(struct radeon_device *rdev)
 {
-	uint32_t r;
+	int r;
 
-	WREG32(R600_PCIE_PORT_INDEX, ((reg) & 0xff));
-	(void)RREG32(R600_PCIE_PORT_INDEX);
-	r = RREG32(R600_PCIE_PORT_DATA);
+	rdev->new_init_path = true;
+	r = radeon_dummy_page_init(rdev);
+	if (r)
+		return r;
+	if (r600_debugfs_mc_info_init(rdev)) {
+		DRM_ERROR("Failed to register debugfs file for mc !\n");
+	}
+	/* This don't do much */
+	r = radeon_gem_init(rdev);
+	if (r)
+		return r;
+	/* Read BIOS */
+	if (!radeon_get_bios(rdev)) {
+		if (ASIC_IS_AVIVO(rdev))
+			return -EINVAL;
+	}
+	/* Must be an ATOMBIOS */
+	if (!rdev->is_atom_bios)
+		return -EINVAL;
+	r = radeon_atombios_init(rdev);
+	if (r)
+		return r;
+	/* Post card if necessary */
+	if (!r600_card_posted(rdev) && rdev->bios) {
+		DRM_INFO("GPU not posted. posting now...\n");
+		atom_asic_init(rdev->mode_info.atom_context);
+	}
+	/* Initialize scratch registers */
+	r600_scratch_init(rdev);
+	/* Initialize surface registers */
+	radeon_surface_init(rdev);
+	r = radeon_clocks_init(rdev);
+	if (r)
+		return r;
+	/* Fence driver */
+	r = radeon_fence_driver_init(rdev);
+	if (r)
+		return r;
+	r = r600_mc_init(rdev);
+	if (r) {
+		if (rdev->flags & RADEON_IS_AGP) {
+			/* Retry with disabling AGP */
+			r600_fini(rdev);
+			rdev->flags &= ~RADEON_IS_AGP;
+			return r600_init(rdev);
+		}
+		return r;
+	}
+	/* Memory manager */
+	r = radeon_object_init(rdev);
+	if (r)
+		return r;
+	rdev->cp.ring_obj = NULL;
+	r600_ring_init(rdev, 1024 * 1024);
+
+	if (!rdev->me_fw || !rdev->pfp_fw) {
+		r = r600_cp_init_microcode(rdev);
+		if (r) {
+			DRM_ERROR("Failed to load firmware!\n");
+			return r;
+		}
+	}
+
+	r = r600_resume(rdev);
+	if (r) {
+		if (rdev->flags & RADEON_IS_AGP) {
+			/* Retry with disabling AGP */
+			r600_fini(rdev);
+			rdev->flags &= ~RADEON_IS_AGP;
+			return r600_init(rdev);
+		}
+		return r;
+	}
+	r = radeon_ib_pool_init(rdev);
+	if (r) {
+		DRM_ERROR("radeon: failled initializing IB pool (%d).\n", r);
+		return r;
+	}
+	r = r600_blit_init(rdev);
+	if (r) {
+		DRM_ERROR("radeon: failled blitter (%d).\n", r);
+		return r;
+	}
+	r = radeon_ib_test(rdev);
+	if (r) {
+		DRM_ERROR("radeon: failled testing IB (%d).\n", r);
+			return r;
+	}
+	return 0;
+}
+
+void r600_fini(struct radeon_device *rdev)
+{
+	/* Suspend operations */
+	r600_suspend(rdev);
+
+	r600_blit_fini(rdev);
+	radeon_ring_fini(rdev);
+	r600_pcie_gart_disable(rdev);
+	radeon_gart_table_vram_free(rdev);
+	radeon_gart_fini(rdev);
+	radeon_gem_fini(rdev);
+	radeon_fence_driver_fini(rdev);
+	radeon_clocks_fini(rdev);
+#if __OS_HAS_AGP
+	if (rdev->flags & RADEON_IS_AGP)
+		radeon_agp_fini(rdev);
+#endif
+	radeon_object_fini(rdev);
+	if (rdev->is_atom_bios)
+		radeon_atombios_fini(rdev);
+	else
+		radeon_combios_fini(rdev);
+	kfree(rdev->bios);
+	rdev->bios = NULL;
+	radeon_dummy_page_fini(rdev);
+}
+
+
+/*
+ * CS stuff
+ */
+void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+	/* FIXME: implement */
+	radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
+	radeon_ring_write(rdev, ib->gpu_addr & 0xFFFFFFFC);
+	radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF);
+	radeon_ring_write(rdev, ib->length_dw);
+}
+
+int r600_ib_test(struct radeon_device *rdev)
+{
+	struct radeon_ib *ib;
+	uint32_t scratch;
+	uint32_t tmp = 0;
+	unsigned i;
+	int r;
+
+	r = radeon_scratch_get(rdev, &scratch);
+	if (r) {
+		DRM_ERROR("radeon: failed to get scratch reg (%d).\n", r);
+		return r;
+	}
+	WREG32(scratch, 0xCAFEDEAD);
+	r = radeon_ib_get(rdev, &ib);
+	if (r) {
+		DRM_ERROR("radeon: failed to get ib (%d).\n", r);
+		return r;
+	}
+	ib->ptr[0] = PACKET3(PACKET3_SET_CONFIG_REG, 1);
+	ib->ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
+	ib->ptr[2] = 0xDEADBEEF;
+	ib->ptr[3] = PACKET2(0);
+	ib->ptr[4] = PACKET2(0);
+	ib->ptr[5] = PACKET2(0);
+	ib->ptr[6] = PACKET2(0);
+	ib->ptr[7] = PACKET2(0);
+	ib->ptr[8] = PACKET2(0);
+	ib->ptr[9] = PACKET2(0);
+	ib->ptr[10] = PACKET2(0);
+	ib->ptr[11] = PACKET2(0);
+	ib->ptr[12] = PACKET2(0);
+	ib->ptr[13] = PACKET2(0);
+	ib->ptr[14] = PACKET2(0);
+	ib->ptr[15] = PACKET2(0);
+	ib->length_dw = 16;
+	r = radeon_ib_schedule(rdev, ib);
+	if (r) {
+		radeon_scratch_free(rdev, scratch);
+		radeon_ib_free(rdev, &ib);
+		DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
+		return r;
+	}
+	r = radeon_fence_wait(ib->fence, false);
+	if (r) {
+		DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+		return r;
+	}
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		tmp = RREG32(scratch);
+		if (tmp == 0xDEADBEEF)
+			break;
+		DRM_UDELAY(1);
+	}
+	if (i < rdev->usec_timeout) {
+		DRM_INFO("ib test succeeded in %u usecs\n", i);
+	} else {
+		DRM_ERROR("radeon: ib test failed (sracth(0x%04X)=0x%08X)\n",
+			  scratch, tmp);
+		r = -EINVAL;
+	}
+	radeon_scratch_free(rdev, scratch);
+	radeon_ib_free(rdev, &ib);
 	return r;
 }
 
-void r600_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
+
+
+
+/*
+ * Debugfs info
+ */
+#if defined(CONFIG_DEBUG_FS)
+
+static int r600_debugfs_cp_ring_info(struct seq_file *m, void *data)
 {
-	WREG32(R600_PCIE_PORT_INDEX, ((reg) & 0xff));
-	(void)RREG32(R600_PCIE_PORT_INDEX);
-	WREG32(R600_PCIE_PORT_DATA, (v));
-	(void)RREG32(R600_PCIE_PORT_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 rdp, wdp;
+	unsigned count, i, j;
+
+	radeon_ring_free_size(rdev);
+	rdp = RREG32(CP_RB_RPTR);
+	wdp = RREG32(CP_RB_WPTR);
+	count = (rdp + rdev->cp.ring_size - wdp) & rdev->cp.ptr_mask;
+	seq_printf(m, "CP_STAT 0x%08x\n", RREG32(CP_STAT));
+	seq_printf(m, "CP_RB_WPTR 0x%08x\n", wdp);
+	seq_printf(m, "CP_RB_RPTR 0x%08x\n", rdp);
+	seq_printf(m, "%u free dwords in ring\n", rdev->cp.ring_free_dw);
+	seq_printf(m, "%u dwords in ring\n", count);
+	for (j = 0; j <= count; j++) {
+		i = (rdp + j) & rdev->cp.ptr_mask;
+		seq_printf(m, "r[%04d]=0x%08x\n", i, rdev->cp.ring[i]);
+	}
+	return 0;
+}
+
+static int r600_debugfs_mc_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;
+
+	DREG32_SYS(m, rdev, R_000E50_SRBM_STATUS);
+	DREG32_SYS(m, rdev, VM_L2_STATUS);
+	return 0;
+}
+
+static struct drm_info_list r600_mc_info_list[] = {
+	{"r600_mc_info", r600_debugfs_mc_info, 0, NULL},
+	{"r600_ring_info", r600_debugfs_cp_ring_info, 0, NULL},
+};
+#endif
+
+int r600_debugfs_mc_info_init(struct radeon_device *rdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+	return radeon_debugfs_add_files(rdev, r600_mc_info_list, ARRAY_SIZE(r600_mc_info_list));
+#else
+	return 0;
+#endif
 }