drm: add libdrm_amdgpu (v7)

This is the new ioctl wrapper used by the new admgpu driver.
It's primarily used by xf86-video-amdgpu and mesa.

v2: fix amdgpu_drm.h install
v3: Integrate some of the sugestions from Emil:
    clean up Makefile.am, configure.ac
    capitalize header guards
    fix _FILE_OFFSET_BITS with config.h
    use drm_mmap/drm_munmap
    Remove unused ARRAY_SIZE macro
    use shared list implementation
    use shared math implementation
    use drmGetNodeTypeFromFd helper
v4: remove unused tiling defines
v5: include amdgpu.h in Makefile.am
v6: update amdgpu_drm.h
v7: libdrm.h -> libdrm_macros.h

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 275 insertions, 0 deletions

diff --git a/amdgpu/amdgpu_gpu_info.c b/amdgpu/amdgpu_gpu_info.c
new file mode 100644
index 00000000..0b777316
--- /dev/null
+++ b/amdgpu/amdgpu_gpu_info.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright © 2014 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#include <errno.h>
+#include <string.h>
+
+#include "amdgpu.h"
+#include "amdgpu_drm.h"
+#include "amdgpu_internal.h"
+#include "xf86drm.h"
+
+int amdgpu_query_info(amdgpu_device_handle dev, unsigned info_id,
+		      unsigned size, void *value)
+{
+	struct drm_amdgpu_info request;
+
+	memset(&request, 0, sizeof(request));
+	request.return_pointer = (uintptr_t)value;
+	request.return_size = size;
+	request.query = info_id;
+
+	return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+			       sizeof(struct drm_amdgpu_info));
+}
+
+int amdgpu_query_crtc_from_id(amdgpu_device_handle dev, unsigned id,
+			      int32_t *result)
+{
+	struct drm_amdgpu_info request;
+
+	memset(&request, 0, sizeof(request));
+	request.return_pointer = (uintptr_t)result;
+	request.return_size = sizeof(*result);
+	request.query = AMDGPU_INFO_CRTC_FROM_ID;
+	request.mode_crtc.id = id;
+
+	return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+			       sizeof(struct drm_amdgpu_info));
+}
+
+int amdgpu_read_mm_registers(amdgpu_device_handle dev, unsigned dword_offset,
+			     unsigned count, uint32_t instance, uint32_t flags,
+			     uint32_t *values)
+{
+	struct drm_amdgpu_info request;
+
+	memset(&request, 0, sizeof(request));
+	request.return_pointer = (uintptr_t)values;
+	request.return_size = count * sizeof(uint32_t);
+	request.query = AMDGPU_INFO_READ_MMR_REG;
+	request.read_mmr_reg.dword_offset = dword_offset;
+	request.read_mmr_reg.count = count;
+	request.read_mmr_reg.instance = instance;
+	request.read_mmr_reg.flags = flags;
+
+	return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+			       sizeof(struct drm_amdgpu_info));
+}
+
+int amdgpu_query_hw_ip_count(amdgpu_device_handle dev, unsigned type,
+			     uint32_t *count)
+{
+	struct drm_amdgpu_info request;
+
+	memset(&request, 0, sizeof(request));
+	request.return_pointer = (uintptr_t)count;
+	request.return_size = sizeof(*count);
+	request.query = AMDGPU_INFO_HW_IP_COUNT;
+	request.query_hw_ip.type = type;
+
+	return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+			       sizeof(struct drm_amdgpu_info));
+}
+
+int amdgpu_query_hw_ip_info(amdgpu_device_handle dev, unsigned type,
+			    unsigned ip_instance,
+			    struct drm_amdgpu_info_hw_ip *info)
+{
+	struct drm_amdgpu_info request;
+
+	memset(&request, 0, sizeof(request));
+	request.return_pointer = (uintptr_t)info;
+	request.return_size = sizeof(*info);
+	request.query = AMDGPU_INFO_HW_IP_INFO;
+	request.query_hw_ip.type = type;
+	request.query_hw_ip.ip_instance = ip_instance;
+
+	return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+			       sizeof(struct drm_amdgpu_info));
+}
+
+int amdgpu_query_firmware_version(amdgpu_device_handle dev, unsigned fw_type,
+				  unsigned ip_instance, unsigned index,
+				  uint32_t *version, uint32_t *feature)
+{
+	struct drm_amdgpu_info request;
+	struct drm_amdgpu_info_firmware firmware;
+	int r;
+
+	memset(&request, 0, sizeof(request));
+	request.return_pointer = (uintptr_t)&firmware;
+	request.return_size = sizeof(firmware);
+	request.query = AMDGPU_INFO_FW_VERSION;
+	request.query_fw.fw_type = fw_type;
+	request.query_fw.ip_instance = ip_instance;
+	request.query_fw.index = index;
+
+	r = drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+			    sizeof(struct drm_amdgpu_info));
+	if (r)
+		return r;
+
+	*version = firmware.ver;
+	*feature = firmware.feature;
+	return 0;
+}
+
+int amdgpu_query_gpu_info_init(amdgpu_device_handle dev)
+{
+	int r, i;
+
+	r = amdgpu_query_info(dev, AMDGPU_INFO_DEV_INFO, sizeof(dev->dev_info),
+			      &dev->dev_info);
+	if (r)
+		return r;
+
+	dev->info.asic_id = dev->dev_info.device_id;
+	dev->info.chip_rev = dev->dev_info.chip_rev;
+	dev->info.chip_external_rev = dev->dev_info.external_rev;
+	dev->info.family_id = dev->dev_info.family;
+	dev->info.max_engine_clk = dev->dev_info.max_engine_clock;
+	dev->info.gpu_counter_freq = dev->dev_info.gpu_counter_freq;
+	dev->info.enabled_rb_pipes_mask = dev->dev_info.enabled_rb_pipes_mask;
+	dev->info.rb_pipes = dev->dev_info.num_rb_pipes;
+	dev->info.ids_flags = dev->dev_info.ids_flags;
+	dev->info.num_hw_gfx_contexts = dev->dev_info.num_hw_gfx_contexts;
+	dev->info.num_shader_engines = dev->dev_info.num_shader_engines;
+	dev->info.num_shader_arrays_per_engine =
+		dev->dev_info.num_shader_arrays_per_engine;
+
+	for (i = 0; i < (int)dev->info.num_shader_engines; i++) {
+		unsigned instance = (i << AMDGPU_INFO_MMR_SE_INDEX_SHIFT) |
+				    (AMDGPU_INFO_MMR_SH_INDEX_MASK <<
+				     AMDGPU_INFO_MMR_SH_INDEX_SHIFT);
+
+		r = amdgpu_read_mm_registers(dev, 0x263d, 1, instance, 0,
+					     &dev->info.backend_disable[i]);
+		if (r)
+			return r;
+		/* extract bitfield CC_RB_BACKEND_DISABLE.BACKEND_DISABLE */
+		dev->info.backend_disable[i] =
+			(dev->info.backend_disable[i] >> 16) & 0xff;
+
+		r = amdgpu_read_mm_registers(dev, 0xa0d4, 1, instance, 0,
+					     &dev->info.pa_sc_raster_cfg[i]);
+		if (r)
+			return r;
+
+		r = amdgpu_read_mm_registers(dev, 0xa0d5, 1, instance, 0,
+					     &dev->info.pa_sc_raster_cfg1[i]);
+		if (r)
+			return r;
+	}
+
+	r = amdgpu_read_mm_registers(dev, 0x2644, 32, 0xffffffff, 0,
+				     dev->info.gb_tile_mode);
+	if (r)
+		return r;
+
+	r = amdgpu_read_mm_registers(dev, 0x2664, 16, 0xffffffff, 0,
+				     dev->info.gb_macro_tile_mode);
+	if (r)
+		return r;
+
+	r = amdgpu_read_mm_registers(dev, 0x263e, 1, 0xffffffff, 0,
+				     &dev->info.gb_addr_cfg);
+	if (r)
+		return r;
+
+	r = amdgpu_read_mm_registers(dev, 0x9d8, 1, 0xffffffff, 0,
+				     &dev->info.mc_arb_ramcfg);
+	if (r)
+		return r;
+
+	dev->info.cu_active_number = dev->dev_info.cu_active_number;
+	dev->info.cu_ao_mask = dev->dev_info.cu_ao_mask;
+	memcpy(&dev->info.cu_bitmap[0][0], &dev->dev_info.cu_bitmap[0][0], sizeof(dev->info.cu_bitmap));
+
+	/* TODO: info->max_quad_shader_pipes is not set */
+	/* TODO: info->avail_quad_shader_pipes is not set */
+	/* TODO: info->cache_entries_per_quad_pipe is not set */
+	/* TODO: info->active_rb_pipes is not set */
+	return 0;
+}
+
+int amdgpu_query_gpu_info(amdgpu_device_handle dev,
+			struct amdgpu_gpu_info *info)
+{
+	/* Get ASIC info*/
+	*info = dev->info;
+
+	return 0;
+}
+
+int amdgpu_query_heap_info(amdgpu_device_handle dev,
+			uint32_t heap,
+			uint32_t flags,
+			struct amdgpu_heap_info *info)
+{
+	struct drm_amdgpu_info_vram_gtt vram_gtt_info;
+	int r;
+
+	r = amdgpu_query_info(dev, AMDGPU_INFO_VRAM_GTT,
+			      sizeof(vram_gtt_info), &vram_gtt_info);
+	if (r)
+		return r;
+
+	/* Get heap information */
+	switch (heap) {
+	case AMDGPU_GEM_DOMAIN_VRAM:
+		/* query visible only vram heap */
+		if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
+			info->heap_size = vram_gtt_info.vram_cpu_accessible_size;
+		else /* query total vram heap */
+			info->heap_size = vram_gtt_info.vram_size;
+
+		info->max_allocation = vram_gtt_info.vram_cpu_accessible_size;
+
+		if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
+			r = amdgpu_query_info(dev, AMDGPU_INFO_VIS_VRAM_USAGE,
+					      sizeof(info->heap_usage),
+					      &info->heap_usage);
+		else
+			r = amdgpu_query_info(dev, AMDGPU_INFO_VRAM_USAGE,
+					      sizeof(info->heap_usage),
+					      &info->heap_usage);
+		if (r)
+			return r;
+		break;
+	case AMDGPU_GEM_DOMAIN_GTT:
+		info->heap_size = vram_gtt_info.gtt_size;
+		info->max_allocation = vram_gtt_info.vram_cpu_accessible_size;
+
+		r = amdgpu_query_info(dev, AMDGPU_INFO_GTT_USAGE,
+				      sizeof(info->heap_usage),
+				      &info->heap_usage);
+		if (r)
+			return r;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}