A binary entry that lists GCA configuration data (and can be
read by umr).
(v2) Use kmalloc instead of vmalloc
Signed-off-by: Tom St Denis <tom.stdenis at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 70 ++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 4598093ad50b..d3dff5430bcc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2464,6 +2464,68 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
return result;
}
+static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf,
+ size_t size, loff_t *pos)
+{
+ struct amdgpu_device *adev = f->f_inode->i_private;
+ ssize_t result = 0;
+ int r;
+ uint32_t *config, no_regs = 0;
+
+ if (size & 0x3 || *pos & 0x3)
+ return -EINVAL;
+
+ config = kmalloc(256*sizeof(*config));
+ if (!config)
+ return -ENOMEM;
+
+ /* version, increment each time something is added */
+ config[no_regs++] = 0;
+ config[no_regs++] = adev->gfx.config.max_shader_engines;
+ config[no_regs++] = adev->gfx.config.max_tile_pipes;
+ config[no_regs++] = adev->gfx.config.max_cu_per_sh;
+ config[no_regs++] = adev->gfx.config.max_sh_per_se;
+ config[no_regs++] = adev->gfx.config.max_backends_per_se;
+ config[no_regs++] = adev->gfx.config.max_texture_channel_caches;
+ config[no_regs++] = adev->gfx.config.max_gprs;
+ config[no_regs++] = adev->gfx.config.max_gs_threads;
+ config[no_regs++] = adev->gfx.config.max_hw_contexts;
+ config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_frontend;
+ config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_backend;
+ config[no_regs++] = adev->gfx.config.sc_hiz_tile_fifo_size;
+ config[no_regs++] = adev->gfx.config.sc_earlyz_tile_fifo_size;
+ config[no_regs++] = adev->gfx.config.num_tile_pipes;
+ config[no_regs++] = adev->gfx.config.backend_enable_mask;
+ config[no_regs++] = adev->gfx.config.mem_max_burst_length_bytes;
+ config[no_regs++] = adev->gfx.config.mem_row_size_in_kb;
+ config[no_regs++] = adev->gfx.config.shader_engine_tile_size;
+ config[no_regs++] = adev->gfx.config.num_gpus;
+ config[no_regs++] = adev->gfx.config.multi_gpu_tile_size;
+ config[no_regs++] = adev->gfx.config.mc_arb_ramcfg;
+ config[no_regs++] = adev->gfx.config.gb_addr_config;
+ config[no_regs++] = adev->gfx.config.num_rbs;
+
+ while (size && (*pos < no_regs*4)) {
+ uint32_t value;
+
+ value = config[*pos >> 2];
+ r = put_user(value, (uint32_t *)buf);
+ if (r) {
+ kfree(config);
+ return r;
+ }
+
+ result += 4;
+ buf += 4;
+ *pos += 4;
+ size -= 4;
+ }
+
+ kfree(config);
+ return result;
+}
+
+
static const struct file_operations amdgpu_debugfs_regs_fops = {
.owner = THIS_MODULE,
.read = amdgpu_debugfs_regs_read,
@@ -2489,11 +2551,18 @@ static const struct file_operations amdgpu_debugfs_regs_smc_fops = {
.llseek = default_llseek
};
+static const struct file_operations amdgpu_debugfs_gca_config_fops = {
+ .owner = THIS_MODULE,
+ .read = amdgpu_debugfs_gca_config_read,
+ .llseek = default_llseek
+};
+
static const struct file_operations *debugfs_regs[] = {
&amdgpu_debugfs_regs_fops,
&amdgpu_debugfs_regs_didt_fops,
&amdgpu_debugfs_regs_pcie_fops,
&amdgpu_debugfs_regs_smc_fops,
+ &amdgpu_debugfs_gca_config_fops,
};
static const char *debugfs_regs_names[] = {
@@ -2501,6 +2570,7 @@ static const char *debugfs_regs_names[] = {
"amdgpu_regs_didt",
"amdgpu_regs_pcie",
"amdgpu_regs_smc",
+ "amdgpu_gca_config",
};
static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)
--
2.9.0
