drm/radeon/kms: Convert R520 to new init path and associated cleanup

Convert the r520 asic support to new init path, change are smaller than
previous one as most of the architecture is now in place and more code
sharing can happen btw various asics.

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

1 files changed, 162 insertions, 105 deletions

diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 2723486ad380..0bf13fccdaf2 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -26,107 +26,13 @@
  *          Jerome Glisse
  */
 #include "drmP.h"
-#include "radeon_reg.h"
 #include "radeon.h"
+#include "atom.h"
+#include "r520d.h"
 
-/* r520,rv530,rv560,rv570,r580 depends on : */
-void r100_hdp_reset(struct radeon_device *rdev);
-void r420_pipes_init(struct radeon_device *rdev);
-void rs600_mc_disable_clients(struct radeon_device *rdev);
-int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
-int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
+/* This files gather functions specifics to: r520,rv530,rv560,rv570,r580 */
 
-/* This files gather functions specifics to:
- * r520,rv530,rv560,rv570,r580
- *
- * Some of these functions might be used by newer ASICs.
- */
-void r520_gpu_init(struct radeon_device *rdev);
-int r520_mc_wait_for_idle(struct radeon_device *rdev);
-
-
-/*
- * MC
- */
-int r520_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");
-        }
-        if (rv515_debugfs_pipes_info_init(rdev)) {
-                DRM_ERROR("Failed to register debugfs file for pipes !\n");
-        }
-        if (rv515_debugfs_ga_info_init(rdev)) {
-                DRM_ERROR("Failed to register debugfs file for pipes !\n");
-        }
-
-        r520_gpu_init(rdev);
-        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 */
-        rs600_mc_disable_clients(rdev);
-        if (r520_mc_wait_for_idle(rdev)) {
-                printk(KERN_WARNING "Failed to wait MC idle while "
-                       "programming pipes. Bad things might happen.\n");
-        }
-        /* Write VRAM size in case we are limiting it */
-        WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
-        tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
-        tmp = REG_SET(R520_MC_FB_TOP, tmp >> 16);
-        tmp |= REG_SET(R520_MC_FB_START, rdev->mc.vram_location >> 16);
-        WREG32_MC(R520_MC_FB_LOCATION, tmp);
-        WREG32(RS690_HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
-        WREG32(0x310, rdev->mc.vram_location);
-        if (rdev->flags & RADEON_IS_AGP) {
-                tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
-                tmp = REG_SET(R520_MC_AGP_TOP, tmp >> 16);
-                tmp |= REG_SET(R520_MC_AGP_START, rdev->mc.gtt_location >> 16);
-                WREG32_MC(R520_MC_AGP_LOCATION, tmp);
-                WREG32_MC(R520_MC_AGP_BASE, rdev->mc.agp_base);
-                WREG32_MC(R520_MC_AGP_BASE_2, 0);
-        } else {
-                WREG32_MC(R520_MC_AGP_LOCATION, 0x0FFFFFFF);
-                WREG32_MC(R520_MC_AGP_BASE, 0);
-                WREG32_MC(R520_MC_AGP_BASE_2, 0);
-        }
-        return 0;
-}
-
-void r520_mc_fini(struct radeon_device *rdev)
-{
-}
-
-
-/*
- * Global GPU functions
- */
-void r520_errata(struct radeon_device *rdev)
-{
-        rdev->pll_errata = 0;
-}
-
-int r520_mc_wait_for_idle(struct radeon_device *rdev)
+static int r520_mc_wait_for_idle(struct radeon_device *rdev)
 {
         unsigned i;
         uint32_t tmp;
@@ -142,7 +48,7 @@ int r520_mc_wait_for_idle(struct radeon_device *rdev)
         return -1;
 }
 
-void r520_gpu_init(struct radeon_device *rdev)
+static void r520_gpu_init(struct radeon_device *rdev)
 {
         unsigned pipe_select_current, gb_pipe_select, tmp;
 
@@ -185,10 +91,6 @@ void r520_gpu_init(struct radeon_device *rdev)
         }
 }
 
-
-/*
- * VRAM info
- */
 static void r520_vram_get_type(struct radeon_device *rdev)
 {
         uint32_t tmp;
@@ -232,13 +134,168 @@ void r520_vram_info(struct radeon_device *rdev)
         rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
 }
 
-void r520_bandwidth_update(struct radeon_device *rdev)
+void r520_mc_program(struct radeon_device *rdev)
+{
+        struct rv515_mc_save save;
+
+        /* Stops all mc clients */
+        rv515_mc_stop(rdev, &save);
+
+        /* Wait for mc idle */
+        if (r520_mc_wait_for_idle(rdev))
+                dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
+        /* Write VRAM size in case we are limiting it */
+        WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
+        /* Program MC, should be a 32bits limited address space */
+        WREG32_MC(R_000004_MC_FB_LOCATION,
+                        S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
+                        S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
+        WREG32(R_000134_HDP_FB_LOCATION,
+                S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
+        if (rdev->flags & RADEON_IS_AGP) {
+                WREG32_MC(R_000005_MC_AGP_LOCATION,
+                        S_000005_MC_AGP_START(rdev->mc.gtt_start >> 16) |
+                        S_000005_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
+                WREG32_MC(R_000006_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
+                WREG32_MC(R_000007_AGP_BASE_2,
+                        S_000007_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
+        } else {
+                WREG32_MC(R_000005_MC_AGP_LOCATION, 0xFFFFFFFF);
+                WREG32_MC(R_000006_AGP_BASE, 0);
+                WREG32_MC(R_000007_AGP_BASE_2, 0);
+        }
+
+        rv515_mc_resume(rdev, &save);
+}
+
+static int r520_startup(struct radeon_device *rdev)
+{
+        int r;
+
+        r520_mc_program(rdev);
+        /* Resume clock */
+        rv515_clock_startup(rdev);
+        /* Initialize GPU configuration (# pipes, ...) */
+        r520_gpu_init(rdev);
+        /* Initialize GART (initialize after TTM so we can allocate
+         * memory through TTM but finalize after TTM) */
+        if (rdev->flags & RADEON_IS_PCIE) {
+                r = rv370_pcie_gart_enable(rdev);
+                if (r)
+                        return r;
+        }
+        /* Enable IRQ */
+        rdev->irq.sw_int = true;
+        r100_irq_set(rdev);
+        /* 1M ring buffer */
+        r = r100_cp_init(rdev, 1024 * 1024);
+        if (r) {
+                dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
+                return r;
+        }
+        r = r100_wb_init(rdev);
+        if (r)
+                dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
+        r = r100_ib_init(rdev);
+        if (r) {
+                dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
+                return r;
+        }
+        return 0;
+}
+
+int r520_resume(struct radeon_device *rdev)
 {
-        rv515_bandwidth_avivo_update(rdev);
+        /* Make sur GART are not working */
+        if (rdev->flags & RADEON_IS_PCIE)
+                rv370_pcie_gart_disable(rdev);
+        /* Resume clock before doing reset */
+        rv515_clock_startup(rdev);
+        /* Reset gpu before posting otherwise ATOM will enter infinite loop */
+        if (radeon_gpu_reset(rdev)) {
+                dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
+                        RREG32(R_000E40_RBBM_STATUS),
+                        RREG32(R_0007C0_CP_STAT));
+        }
+        /* post */
+        atom_asic_init(rdev->mode_info.atom_context);
+        /* Resume clock after posting */
+        rv515_clock_startup(rdev);
+        return r520_startup(rdev);
 }
 
 int r520_init(struct radeon_device *rdev)
 {
+        int r;
+
+        rdev->new_init_path = true;
+        /* Initialize scratch registers */
+        radeon_scratch_init(rdev);
+        /* Initialize surface registers */
+        radeon_surface_init(rdev);
+        /* TODO: disable VGA need to use VGA request */
+        /* BIOS*/
+        if (!radeon_get_bios(rdev)) {
+                if (ASIC_IS_AVIVO(rdev))
+                        return -EINVAL;
+        }
+        if (rdev->is_atom_bios) {
+                r = radeon_atombios_init(rdev);
+                if (r)
+                        return r;
+        } else {
+                dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
+                return -EINVAL;
+        }
+        /* Reset gpu before posting otherwise ATOM will enter infinite loop */
+        if (radeon_gpu_reset(rdev)) {
+                dev_warn(rdev->dev,
+                        "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
+                        RREG32(R_000E40_RBBM_STATUS),
+                        RREG32(R_0007C0_CP_STAT));
+        }
+        /* check if cards are posted or not */
+        if (!radeon_card_posted(rdev) && rdev->bios) {
+                DRM_INFO("GPU not posted. posting now...\n");
+                atom_asic_init(rdev->mode_info.atom_context);
+        }
+        /* Initialize clocks */
+        radeon_get_clock_info(rdev->ddev);
+        /* Get vram informations */
+        r520_vram_info(rdev);
+        /* Initialize memory controller (also test AGP) */
+        r = r420_mc_init(rdev);
+        if (r)
+                return r;
+        rv515_debugfs(rdev);
+        /* Fence driver */
+        r = radeon_fence_driver_init(rdev);
+        if (r)
+                return r;
+        r = radeon_irq_kms_init(rdev);
+        if (r)
+                return r;
+        /* Memory manager */
+        r = radeon_object_init(rdev);
+        if (r)
+                return r;
+        r = rv370_pcie_gart_init(rdev);
+        if (r)
+                return r;
         rv515_set_safe_registers(rdev);
+        rdev->accel_working = true;
+        r = r520_startup(rdev);
+        if (r) {
+                /* Somethings want wront with the accel init stop accel */
+                dev_err(rdev->dev, "Disabling GPU acceleration\n");
+                rv515_suspend(rdev);
+                r100_cp_fini(rdev);
+                r100_wb_fini(rdev);
+                r100_ib_fini(rdev);
+                rv370_pcie_gart_fini(rdev);
+                radeon_agp_fini(rdev);
+                radeon_irq_kms_fini(rdev);
+                rdev->accel_working = false;
+        }
         return 0;
 }