r600g: zero memory of ioctl parameters
[mesa.git] / src / gallium / winsys / r600 / drm / r600_drm.c
index 58aacb77c9ebbd815f448197a3cd18298d14bdcb..fa2d77ed4646e1764badc99c26506352187f10d2 100644 (file)
@@ -30,6 +30,8 @@
 #include <sys/ioctl.h>
 #include "util/u_inlines.h"
 #include "util/u_debug.h"
+#include "util/u_hash_table.h"
+#include <pipebuffer/pb_bufmgr.h>
 #include "r600.h"
 #include "r600_priv.h"
 #include "r600_drm_public.h"
 #define RADEON_INFO_TILING_CONFIG 0x6
 #endif
 
-static struct radeon *radeon_new(int fd, unsigned device);
+#ifndef RADEON_INFO_CLOCK_CRYSTAL_FREQ
+#define RADEON_INFO_CLOCK_CRYSTAL_FREQ 0x9
+#endif
+
+#ifndef RADEON_INFO_NUM_BACKENDS
+#define RADEON_INFO_NUM_BACKENDS 0xa
+#endif
 
 enum radeon_family r600_get_family(struct radeon *r600)
 {
@@ -57,9 +65,25 @@ struct r600_tiling_info *r600_get_tiling_info(struct radeon *radeon)
        return &radeon->tiling_info;
 }
 
+unsigned r600_get_clock_crystal_freq(struct radeon *radeon)
+{
+       return radeon->clock_crystal_freq;
+}
+
+unsigned r600_get_num_backends(struct radeon *radeon)
+{
+       return radeon->num_backends;
+}
+
+unsigned r600_get_minor_version(struct radeon *radeon)
+{
+       return radeon->minor_version;
+}
+
+
 static int radeon_get_device(struct radeon *radeon)
 {
-       struct drm_radeon_info info;
+       struct drm_radeon_info info = {};
        int r;
 
        radeon->device = 0;
@@ -70,20 +94,8 @@ static int radeon_get_device(struct radeon *radeon)
        return r;
 }
 
-static int radeon_drm_get_tiling(struct radeon *radeon)
+static int r600_interpret_tiling(struct radeon *radeon, uint32_t tiling_config)
 {
-       struct drm_radeon_info info;
-       int r;
-       uint32_t tiling_config;
-
-       info.request = RADEON_INFO_TILING_CONFIG;
-       info.value = (uintptr_t)&tiling_config;
-       r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
-                               sizeof(struct drm_radeon_info));
-
-       if (r)
-               return 0;
-
        switch ((tiling_config & 0xe) >> 1) {
        case 0:
                radeon->tiling_info.num_channels = 1;
@@ -125,10 +137,140 @@ static int radeon_drm_get_tiling(struct radeon *radeon)
        return 0;
 }
 
+static int eg_interpret_tiling(struct radeon *radeon, uint32_t tiling_config)
+{
+       switch (tiling_config & 0xf) {
+       case 0:
+               radeon->tiling_info.num_channels = 1;
+               break;
+       case 1:
+               radeon->tiling_info.num_channels = 2;
+               break;
+       case 2:
+               radeon->tiling_info.num_channels = 4;
+               break;
+       case 3:
+               radeon->tiling_info.num_channels = 8;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       switch ((tiling_config & 0xf0) >> 4) {
+       case 0:
+               radeon->tiling_info.num_banks = 4;
+               break;
+       case 1:
+               radeon->tiling_info.num_banks = 8;
+               break;
+       case 2:
+               radeon->tiling_info.num_banks = 16;
+               break;
+       default:
+               return -EINVAL;
+
+       }
+
+       switch ((tiling_config & 0xf00) >> 8) {
+       case 0:
+               radeon->tiling_info.group_bytes = 256;
+               break;
+       case 1:
+               radeon->tiling_info.group_bytes = 512;
+               break;
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+static int radeon_drm_get_tiling(struct radeon *radeon)
+{
+       struct drm_radeon_info info = {};
+       int r;
+       uint32_t tiling_config = 0;
+
+       info.request = RADEON_INFO_TILING_CONFIG;
+       info.value = (uintptr_t)&tiling_config;
+       r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
+                               sizeof(struct drm_radeon_info));
+
+       if (r)
+               return 0;
+
+       if (radeon->chip_class == R600 || radeon->chip_class == R700) {
+               r = r600_interpret_tiling(radeon, tiling_config);
+       } else {
+               r = eg_interpret_tiling(radeon, tiling_config);
+       }
+       return r;
+}
+
+static int radeon_get_clock_crystal_freq(struct radeon *radeon)
+{
+       struct drm_radeon_info info = {};
+       uint32_t clock_crystal_freq;
+       int r;
+
+       info.request = RADEON_INFO_CLOCK_CRYSTAL_FREQ;
+       info.value = (uintptr_t)&clock_crystal_freq;
+       r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
+                       sizeof(struct drm_radeon_info));
+       if (r)
+               return r;
+
+       radeon->clock_crystal_freq = clock_crystal_freq;
+       return 0;
+}
+
+
+static int radeon_get_num_backends(struct radeon *radeon)
+{
+       struct drm_radeon_info info = {};
+       uint32_t num_backends;
+       int r;
+
+       info.request = RADEON_INFO_NUM_BACKENDS;
+       info.value = (uintptr_t)&num_backends;
+       r = drmCommandWriteRead(radeon->fd, DRM_RADEON_INFO, &info,
+                       sizeof(struct drm_radeon_info));
+       if (r)
+               return r;
+
+       radeon->num_backends = num_backends;
+       return 0;
+}
+
+
+static int radeon_init_fence(struct radeon *radeon)
+{
+       radeon->fence = 1;
+       radeon->fence_bo = r600_bo(radeon, 4096, 0, 0, 0);
+       if (radeon->fence_bo == NULL) {
+               return -ENOMEM;
+       }
+       radeon->cfence = r600_bo_map(radeon, radeon->fence_bo, PB_USAGE_UNSYNCHRONIZED, NULL);
+       *radeon->cfence = 0;
+       return 0;
+}
+
+#define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
+
+static unsigned handle_hash(void *key)
+{
+    return PTR_TO_UINT(key);
+}
+
+static int handle_compare(void *key1, void *key2)
+{
+    return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
+}
+
 static struct radeon *radeon_new(int fd, unsigned device)
 {
        struct radeon *radeon;
        int r;
+       drmVersionPtr version;
 
        radeon = calloc(1, sizeof(*radeon));
        if (radeon == NULL) {
@@ -137,13 +279,27 @@ static struct radeon *radeon_new(int fd, unsigned device)
        radeon->fd = fd;
        radeon->device = device;
        radeon->refcount = 1;
-       if (fd >= 0) {
-               r = radeon_get_device(radeon);
-               if (r) {
-                       fprintf(stderr, "Failed to get device id\n");
-                       return radeon_decref(radeon);
-               }
+
+       version = drmGetVersion(radeon->fd);
+       if (version->version_major != 2) {
+               fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is "
+                       "only compatible with 2.x.x\n", __FUNCTION__,
+                       version->version_major, version->version_minor,
+                       version->version_patchlevel);
+               drmFreeVersion(version);
+               exit(1);
+       }
+
+       radeon->minor_version = version->version_minor;
+
+       drmFreeVersion(version);
+
+       r = radeon_get_device(radeon);
+       if (r) {
+               fprintf(stderr, "Failed to get device id\n");
+               return radeon_decref(radeon);
        }
+
        radeon->family = radeon_family_from_device(radeon->device);
        if (radeon->family == CHIP_UNKNOWN) {
                fprintf(stderr, "Unknown chipset 0x%04X\n", radeon->device);
@@ -177,24 +333,47 @@ static struct radeon *radeon_new(int fd, unsigned device)
        case CHIP_CYPRESS:
        case CHIP_HEMLOCK:
        case CHIP_PALM:
+       case CHIP_SUMO:
+       case CHIP_SUMO2:
+       case CHIP_BARTS:
+       case CHIP_TURKS:
+       case CHIP_CAICOS:
                radeon->chip_class = EVERGREEN;
                /* set default group bytes, overridden by tiling info ioctl */
                radeon->tiling_info.group_bytes = 512;
                break;
+       case CHIP_CAYMAN:
+               radeon->chip_class = CAYMAN;
+               /* set default group bytes, overridden by tiling info ioctl */
+               radeon->tiling_info.group_bytes = 512;
+               break;
        default:
                fprintf(stderr, "%s unknown or unsupported chipset 0x%04X\n",
                        __func__, radeon->device);
                break;
        }
 
-       if (radeon->chip_class == R600 || radeon->chip_class == R700) {
-               if (radeon_drm_get_tiling(radeon))
-                       return NULL;
-       }
+       if (radeon_drm_get_tiling(radeon))
+               return NULL;
+
+       /* get the GPU counter frequency, failure is non fatal */
+       radeon_get_clock_crystal_freq(radeon);
+
+       if (radeon->minor_version >= 9)
+               radeon_get_num_backends(radeon);
+
        radeon->bomgr = r600_bomgr_create(radeon, 1000000);
        if (radeon->bomgr == NULL) {
                return NULL;
        }
+       r = radeon_init_fence(radeon);
+       if (r) {
+               radeon_decref(radeon);
+               return NULL;
+       }
+
+       radeon->bo_handles = util_hash_table_create(handle_hash, handle_compare);
+       pipe_mutex_init(radeon->bo_handles_mutex);
        return radeon;
 }
 
@@ -211,12 +390,15 @@ struct radeon *radeon_decref(struct radeon *radeon)
                return NULL;
        }
 
+       util_hash_table_destroy(radeon->bo_handles);
+       pipe_mutex_destroy(radeon->bo_handles_mutex);
+       if (radeon->fence_bo) {
+               r600_bo_reference(radeon, &radeon->fence_bo, NULL);
+       }
+
        if (radeon->bomgr)
                r600_bomgr_destroy(radeon->bomgr);
 
-       if (radeon->fd >= 0)
-               drmClose(radeon->fd);
-
        free(radeon);
        return NULL;
 }