drm/panfrost: Do the exception -> string translation using a table

Do the exception -> string translation using a table. This way we get
rid of those magic numbers and can easily add new fields if we need
to attach extra information to exception types.

v4:
* Don't expose exception type to userspace
* Merge the enum definition and the enum -> string table declaration
  in the same patch

v3:
* Drop the error field

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210630062751.2832545-7-boris.brezillon@collabora.com

1 files changed, 69 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 2fe1550da7f8..3639288ee8a2 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -173,6 +173,75 @@ void panfrost_device_reset(struct panfrost_device *pfdev);
 int panfrost_device_resume(struct device *dev);
 int panfrost_device_suspend(struct device *dev);
 
+enum drm_panfrost_exception_type {
+	DRM_PANFROST_EXCEPTION_OK = 0x00,
+	DRM_PANFROST_EXCEPTION_DONE = 0x01,
+	DRM_PANFROST_EXCEPTION_INTERRUPTED = 0x02,
+	DRM_PANFROST_EXCEPTION_STOPPED = 0x03,
+	DRM_PANFROST_EXCEPTION_TERMINATED = 0x04,
+	DRM_PANFROST_EXCEPTION_KABOOM = 0x05,
+	DRM_PANFROST_EXCEPTION_EUREKA = 0x06,
+	DRM_PANFROST_EXCEPTION_ACTIVE = 0x08,
+	DRM_PANFROST_EXCEPTION_JOB_CONFIG_FAULT = 0x40,
+	DRM_PANFROST_EXCEPTION_JOB_POWER_FAULT = 0x41,
+	DRM_PANFROST_EXCEPTION_JOB_READ_FAULT = 0x42,
+	DRM_PANFROST_EXCEPTION_JOB_WRITE_FAULT = 0x43,
+	DRM_PANFROST_EXCEPTION_JOB_AFFINITY_FAULT = 0x44,
+	DRM_PANFROST_EXCEPTION_JOB_BUS_FAULT = 0x48,
+	DRM_PANFROST_EXCEPTION_INSTR_INVALID_PC = 0x50,
+	DRM_PANFROST_EXCEPTION_INSTR_INVALID_ENC = 0x51,
+	DRM_PANFROST_EXCEPTION_INSTR_TYPE_MISMATCH = 0x52,
+	DRM_PANFROST_EXCEPTION_INSTR_OPERAND_FAULT = 0x53,
+	DRM_PANFROST_EXCEPTION_INSTR_TLS_FAULT = 0x54,
+	DRM_PANFROST_EXCEPTION_INSTR_BARRIER_FAULT = 0x55,
+	DRM_PANFROST_EXCEPTION_INSTR_ALIGN_FAULT = 0x56,
+	DRM_PANFROST_EXCEPTION_DATA_INVALID_FAULT = 0x58,
+	DRM_PANFROST_EXCEPTION_TILE_RANGE_FAULT = 0x59,
+	DRM_PANFROST_EXCEPTION_ADDR_RANGE_FAULT = 0x5a,
+	DRM_PANFROST_EXCEPTION_IMPRECISE_FAULT = 0x5b,
+	DRM_PANFROST_EXCEPTION_OOM = 0x60,
+	DRM_PANFROST_EXCEPTION_OOM_AFBC = 0x61,
+	DRM_PANFROST_EXCEPTION_UNKNOWN = 0x7f,
+	DRM_PANFROST_EXCEPTION_DELAYED_BUS_FAULT = 0x80,
+	DRM_PANFROST_EXCEPTION_GPU_SHAREABILITY_FAULT = 0x88,
+	DRM_PANFROST_EXCEPTION_SYS_SHAREABILITY_FAULT = 0x89,
+	DRM_PANFROST_EXCEPTION_GPU_CACHEABILITY_FAULT = 0x8a,
+	DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_0 = 0xc0,
+	DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_1 = 0xc1,
+	DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_2 = 0xc2,
+	DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_3 = 0xc3,
+	DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_4 = 0xc4,
+	DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_IDENTITY = 0xc7,
+	DRM_PANFROST_EXCEPTION_PERM_FAULT_0 = 0xc8,
+	DRM_PANFROST_EXCEPTION_PERM_FAULT_1 = 0xc9,
+	DRM_PANFROST_EXCEPTION_PERM_FAULT_2 = 0xca,
+	DRM_PANFROST_EXCEPTION_PERM_FAULT_3 = 0xcb,
+	DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_0 = 0xd0,
+	DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_1 = 0xd1,
+	DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_2 = 0xd2,
+	DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_3 = 0xd3,
+	DRM_PANFROST_EXCEPTION_ACCESS_FLAG_0 = 0xd8,
+	DRM_PANFROST_EXCEPTION_ACCESS_FLAG_1 = 0xd9,
+	DRM_PANFROST_EXCEPTION_ACCESS_FLAG_2 = 0xda,
+	DRM_PANFROST_EXCEPTION_ACCESS_FLAG_3 = 0xdb,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN0 = 0xe0,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN1 = 0xe1,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN2 = 0xe2,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN3 = 0xe3,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT0 = 0xe4,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT1 = 0xe5,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT2 = 0xe6,
+	DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT3 = 0xe7,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_0 = 0xe8,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_1 = 0xe9,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_2 = 0xea,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_3 = 0xeb,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_0 = 0xec,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_1 = 0xed,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_2 = 0xee,
+	DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_3 = 0xef,
+};
+
 const char *panfrost_exception_name(u32 exception_code);
 
 #endif