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path: root/drivers/gpu/drm/radeon/rs400.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/rs400.c')
-rw-r--r--drivers/gpu/drm/radeon/rs400.c411
1 files changed, 411 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
new file mode 100644
index 00000000000..cc074b5a8f7
--- /dev/null
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -0,0 +1,411 @@
+/*
+ * 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 <drm/drmP.h>
+#include "radeon_reg.h"
+#include "radeon.h"
+
+/* rs400,rs480 depends on : */
+void r100_hdp_reset(struct radeon_device *rdev);
+void r100_mc_disable_clients(struct radeon_device *rdev);
+int r300_mc_wait_for_idle(struct radeon_device *rdev);
+void r420_pipes_init(struct radeon_device *rdev);
+
+/* This files gather functions specifics to :
+ * rs400,rs480
+ *
+ * Some of these functions might be used by newer ASICs.
+ */
+void rs400_gpu_init(struct radeon_device *rdev);
+int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
+
+
+/*
+ * GART functions.
+ */
+void rs400_gart_adjust_size(struct radeon_device *rdev)
+{
+ /* Check gart size */
+ switch (rdev->mc.gtt_size/(1024*1024)) {
+ case 32:
+ case 64:
+ case 128:
+ case 256:
+ case 512:
+ case 1024:
+ case 2048:
+ break;
+ default:
+ DRM_ERROR("Unable to use IGP GART size %uM\n",
+ rdev->mc.gtt_size >> 20);
+ DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
+ DRM_ERROR("Forcing to 32M GART size\n");
+ rdev->mc.gtt_size = 32 * 1024 * 1024;
+ return;
+ }
+ if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
+ /* FIXME: RS400 & RS480 seems to have issue with GART size
+ * if 4G of system memory (needs more testing) */
+ rdev->mc.gtt_size = 32 * 1024 * 1024;
+ DRM_ERROR("Forcing to 32M GART size (because of ASIC bug ?)\n");
+ }
+}
+
+void rs400_gart_tlb_flush(struct radeon_device *rdev)
+{
+ uint32_t tmp;
+ unsigned int timeout = rdev->usec_timeout;
+
+ WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
+ do {
+ tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
+ if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
+ break;
+ DRM_UDELAY(1);
+ timeout--;
+ } while (timeout > 0);
+ WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
+}
+
+int rs400_gart_enable(struct radeon_device *rdev)
+{
+ uint32_t size_reg;
+ uint32_t tmp;
+ int r;
+
+ /* Initialize common gart structure */
+ r = radeon_gart_init(rdev);
+ if (r) {
+ return r;
+ }
+ if (rs400_debugfs_pcie_gart_info_init(rdev)) {
+ DRM_ERROR("Failed to register debugfs file for RS400 GART !\n");
+ }
+
+ tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
+ tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
+ WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
+ /* Check gart size */
+ switch(rdev->mc.gtt_size / (1024 * 1024)) {
+ case 32:
+ size_reg = RS480_VA_SIZE_32MB;
+ break;
+ case 64:
+ size_reg = RS480_VA_SIZE_64MB;
+ break;
+ case 128:
+ size_reg = RS480_VA_SIZE_128MB;
+ break;
+ case 256:
+ size_reg = RS480_VA_SIZE_256MB;
+ break;
+ case 512:
+ size_reg = RS480_VA_SIZE_512MB;
+ break;
+ case 1024:
+ size_reg = RS480_VA_SIZE_1GB;
+ break;
+ case 2048:
+ size_reg = RS480_VA_SIZE_2GB;
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (rdev->gart.table.ram.ptr == NULL) {
+ rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
+ r = radeon_gart_table_ram_alloc(rdev);
+ if (r) {
+ return r;
+ }
+ }
+ /* It should be fine to program it to max value */
+ if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
+ WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
+ WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
+ } else {
+ WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
+ WREG32(RS480_AGP_BASE_2, 0);
+ }
+ tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
+ tmp = REG_SET(RS690_MC_AGP_TOP, tmp >> 16);
+ tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_location >> 16);
+ if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
+ WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
+ tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
+ WREG32(RADEON_BUS_CNTL, tmp);
+ } else {
+ WREG32(RADEON_MC_AGP_LOCATION, tmp);
+ tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
+ WREG32(RADEON_BUS_CNTL, tmp);
+ }
+ /* Table should be in 32bits address space so ignore bits above. */
+ tmp = rdev->gart.table_addr & 0xfffff000;
+ WREG32_MC(RS480_GART_BASE, tmp);
+ /* TODO: more tweaking here */
+ WREG32_MC(RS480_GART_FEATURE_ID,
+ (RS480_TLB_ENABLE |
+ RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
+ /* Disable snooping */
+ WREG32_MC(RS480_AGP_MODE_CNTL,
+ (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
+ /* Disable AGP mode */
+ /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
+ * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
+ if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
+ WREG32_MC(RS480_MC_MISC_CNTL,
+ (RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN));
+ } else {
+ WREG32_MC(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
+ }
+ /* Enable gart */
+ WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
+ rs400_gart_tlb_flush(rdev);
+ rdev->gart.ready = true;
+ return 0;
+}
+
+void rs400_gart_disable(struct radeon_device *rdev)
+{
+ uint32_t tmp;
+
+ tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
+ tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
+ WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
+ WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
+}
+
+int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
+{
+ if (i < 0 || i > rdev->gart.num_gpu_pages) {
+ return -EINVAL;
+ }
+ rdev->gart.table.ram.ptr[i] = cpu_to_le32(((uint32_t)addr) | 0xC);
+ return 0;
+}
+
+
+/*
+ * MC functions.
+ */
+int rs400_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");
+ }
+
+ rs400_gpu_init(rdev);
+ rs400_gart_disable(rdev);
+ 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;
+ }
+
+ 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");
+ }
+
+ tmp = rdev->mc.vram_location + rdev->mc.vram_size - 1;
+ tmp = REG_SET(RADEON_MC_FB_TOP, tmp >> 16);
+ tmp |= REG_SET(RADEON_MC_FB_START, rdev->mc.vram_location >> 16);
+ WREG32(RADEON_MC_FB_LOCATION, tmp);
+ tmp = RREG32(RADEON_HOST_PATH_CNTL) | RADEON_HP_LIN_RD_CACHE_DIS;
+ WREG32(RADEON_HOST_PATH_CNTL, tmp | RADEON_HDP_SOFT_RESET | RADEON_HDP_READ_BUFFER_INVALIDATE);
+ (void)RREG32(RADEON_HOST_PATH_CNTL);
+ WREG32(RADEON_HOST_PATH_CNTL, tmp);
+ (void)RREG32(RADEON_HOST_PATH_CNTL);
+ return 0;
+}
+
+void rs400_mc_fini(struct radeon_device *rdev)
+{
+ rs400_gart_disable(rdev);
+ radeon_gart_table_ram_free(rdev);
+ radeon_gart_fini(rdev);
+}
+
+
+/*
+ * Global GPU functions
+ */
+void rs400_errata(struct radeon_device *rdev)
+{
+ rdev->pll_errata = 0;
+}
+
+void rs400_gpu_init(struct radeon_device *rdev)
+{
+ /* FIXME: HDP same place on rs400 ? */
+ r100_hdp_reset(rdev);
+ /* FIXME: is this correct ? */
+ 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");
+ }
+}
+
+
+/*
+ * VRAM info.
+ */
+void rs400_vram_info(struct radeon_device *rdev)
+{
+ uint32_t tom;
+
+ rs400_gart_adjust_size(rdev);
+ /* DDR for all card after R300 & IGP */
+ rdev->mc.vram_is_ddr = true;
+ rdev->mc.vram_width = 128;
+
+ /* read NB_TOM to get the amount of ram stolen for the GPU */
+ tom = RREG32(RADEON_NB_TOM);
+ rdev->mc.vram_size = (((tom >> 16) - (tom & 0xffff) + 1) << 16);
+ WREG32(RADEON_CONFIG_MEMSIZE, rdev->mc.vram_size);
+
+ /* 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);
+}
+
+
+/*
+ * Indirect registers accessor
+ */
+uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
+{
+ uint32_t r;
+
+ WREG32(RS480_NB_MC_INDEX, reg & 0xff);
+ r = RREG32(RS480_NB_MC_DATA);
+ WREG32(RS480_NB_MC_INDEX, 0xff);
+ return r;
+}
+
+void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
+{
+ WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
+ WREG32(RS480_NB_MC_DATA, (v));
+ WREG32(RS480_NB_MC_INDEX, 0xff);
+}
+
+
+/*
+ * Debugfs info
+ */
+#if defined(CONFIG_DEBUG_FS)
+static int rs400_debugfs_gart_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(RADEON_HOST_PATH_CNTL);
+ seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
+ tmp = RREG32(RADEON_BUS_CNTL);
+ seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
+ seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
+ if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
+ tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
+ seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
+ seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
+ seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x100);
+ seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
+ tmp = RREG32(0x134);
+ seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
+ } else {
+ tmp = RREG32(RADEON_AGP_BASE);
+ seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
+ tmp = RREG32(RS480_AGP_BASE_2);
+ seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
+ tmp = RREG32(RADEON_MC_AGP_LOCATION);
+ seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
+ }
+ tmp = RREG32_MC(RS480_GART_BASE);
+ seq_printf(m, "GART_BASE 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS480_GART_FEATURE_ID);
+ seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
+ seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS480_MC_MISC_CNTL);
+ seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x5F);
+ seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
+ seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
+ tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
+ seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x3B);
+ seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x3C);
+ seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x30);
+ seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x31);
+ seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x32);
+ seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x33);
+ seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x34);
+ seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x35);
+ seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x36);
+ seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
+ tmp = RREG32_MC(0x37);
+ seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
+ return 0;
+}
+
+static struct drm_info_list rs400_gart_info_list[] = {
+ {"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
+};
+#endif
+
+int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+ return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1);
+#else
+ return 0;
+#endif
+}